Technical Guidance
for Hazards Analysis
Emergency Planning for
Extremely Hazardous Substances
U.S. Environmental Protection Agency
Federal Emergency Management Agency
U.S. Department of Transportation
December 1987
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Preface
This guide was developed by the U.S. Environ-
mental Protection Agency in conjunction with the
Federal Emergency Management Agency
(FEMA) and the Department of Transportation
(DOT).
In November 1985, as part of its National Strat-
egy for Toxic Air Pollutants, EPA published the
Chemical Emergency Preparedness Program
(CEPP) Interim Guidance and invited public re-
view and comment. The Interim Guidance con-
tained information on how to organize planning
committees, write a plan, and conduct a haz-
ards analysis on a site-specific basis. In April
1986, EPA began collaborating with FEMA and
other Federal agency members of the National
Response Team (NRT) in the revision of FEMA's
widely-distributed Planning Guide and Checklist
for Hazardous Materials Contingency Plans
(popularly known as "FEMA-10"). In October
1986, during the time that a revised FEMA-10
was being prepared, the Superfund Amend-
ments and Reauthorization Act of 1986 (SARA)
was enacted. Title III of SARA is also known as
the Emergency Planning and Community Right-
to-Know Act. Section 303 of SARA required the
NRT to publish guidance to assist local emer-
gency planning committees (LEPCs) with the de-
velopment and implementation of comprehen-
sive hazardous materials emergency response
plans. The Federal agencies revising FEMA-10
prepared a document that included guidance for
meeting the SARA Title III planning requirements.
The NRT published this document as the Hazard-
ous Materials Emergency Planning Guide
(NRT-1) on March 17, 1987.
This current guide supplements NRT-1 by pro-
viding technical assistance to LEPCs to assess
the lethal hazards related to potential airborne
releases of extremely hazardous substances
(EHSs) as designated under Section 302 of Title
III of SARA. Future revisions of this guidance
(scheduled for publication in 1988) will consider
flammables, corrosives, explosives, and other
hazards. Anyone using this guide also needs to
acquire and use NRT-1.
There are many definitions of "hazards analy-
sis. " In an effort to develop and maintain con-
sistency among Federal guidance documents,
this guide adopts the approach to community
level hazards analysis adopted by 14 Federal
agencies in NRT-1. NRT-1 defines "hazards
analysis" as a three step process: hazards iden-
tification, vulnerability analysis, and risk analy-
sis, and provides general descriptions and spe-
cific procedures for each. This guide provides a
technical discussion of, and specific procedures
for, a method that can be employed in conduct-
ing a hazards analysis that will allow planners to
consider the potential risks in their local commu-
nities.
Although the use of this guide is not mandatory,
it does have many advantages, some of which
are the following:
It enables local planners to conduct a haz-
ards analysis, which is an essential step in
the planning process, and thereby assists lo-
cal planners in meeting planning require-
ments of SARA Title III;
It will facilitate community awareness of the
potential risks of chemical releases while
helping the community to plan for, respond
to, and reduce those risks.
It is consistent with NRT-1 mandated under
SARA and approved by 14 Federal agencies:
It is consistent with training programs (e.g.
contingency planning) that are being con-
ducted by the Emergency Management Insti-
tute in Emmitsburg, Maryland:
It can be used by software developers who
want their products to be consistent with the
planning requirements of Title III of SARA:
and
It will promote consistency among local
emergency plans.
Techniques presented in this guide and NRT-1
will also be helpful to LEPCs during the annual
review and updating of their plans, as required
by SARA Title III.
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Table of Contents
PAGE
PREFACE i
1. INTRODUCTION AND OVERVIEW 1-1
1 .1 Purpose of this Guide 1-1
1.2 Emergency Planning: the National Response Team Planning Guide 1-1
1.3 Beginning to Plan 1-3
1.4 Hazards Analysis 1-3
A. Hazards identification . . , 1-4
B. Vulnerability analysis 1-4
C. Risk analysis 1-4
1.5 Background 11-5
1.5.1 EPA's Chemical Emergency Preparedness Program 1-5
1.5.2 Other Public and Private Sector Programs 11-5
1.5.3 Emergency Planning and Community Right-to-Know Act of 1986
(Title III of SARA) 11-6
A. Identifying the Extremely Hazardous Substances that Trigger
the Planning Process 1-6
B. Planning Structure and Process 1-6
C. Other Title III Information for Planners 1-8
1.6 Contents of this Guide 1-8
2. HAZARDS ANALYSIS: AN OVERVIEW 2-1
2.1 Hazards Identification 2-1
2.1.1 Identification of Hazardous Chemicals 2-2
2.1.2 Procedures for Hazards Identification 2-2
2.1.3 Summary of Useful Information Resulting from Hazards Identification 2-6
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Table of Contents (Continued)
PAGE
2.2 Vulnerability Analysis for Airborne Extremely Hazardous Substances 2-7
2.2.1 General Description of Estimation of Vulnerable Zones 2-7
2.2.2 Variables in Estimating Size of Vulnerable Zones 2-9
A. Quantity and Rate of Release to Air 2-9
B. Meteorological Conditions 2-9
C. Surrounding Topography 2-13
D. Levels of Concern 2-13
2.2.3 The Relationship of Estimated Vulnerable Zones to Actual Releases . . .2-13
2.2.4 Application of Estimated Vulnerable Zones to Hazards Analysis for
Extremely Hazardous Substances 2-17
2.2.5 Evacuation Considerations for Airborne Releases of Extremely
Hazardous Substances 2-18
2.3 Risk Analysis 2-21
2.3.1 Overall Approach to Risk Analysis: Ranking of Hazards 2-21
2.3.2 Types of Information Required for Risk Analysis 2-22
2.3.3 Limiting the Collection of Information 2-25
2.3.4 Assembly of the Information Obtained from the Hazards Analysis 2-25
2.3.5 Relative Ranking of Risk 2-28
3. STEP-BY-STEP PROCEDURES FOR CONDUCTING A HAZARDS ANALYSIS OF
EXTREMELY HAZARDOUS SUBSTANCES 3-1
3.1 Initial Screening to Set Priorities Among Sites . . , 3-1
3.1.1 Hazards Identification 3-1
3.1.2 Estimate Vulnerable Zones for Screening Purposes 3-2
A. Gases 3-3
B. Liquids 3-3
C. Solids 3-4
Worked Examples for Initial Screening 3-5
3.1.3 Risk Analysis for Initial Screening of Reporting Facilities 3-7
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Table of Contents (Continued)
PAGE
3.2 Reevaluation: Planning for Facilities by Priority 3-7
3.2.1 Hazards Identification 3-7
3.2.2 Reevaluation of the Vulnerable Zones 3-7
A. Gases 3-8
B. Liquids 3-8
C. Solids 3-8
3.2.3 Risk Analysis 3-10
4. USING THE RESULTS OF A HAZARDS ANALYSIS 4 -1
4.1 What the Plan Must Contain 4 -1
4.2 Planning Information Provided by the Hazards Analysis 4-2
4.3 Case Studies from Hazards Analysis 4-3
4.4 Plan Reviews in the Context of Local Resource Needs 4-7
4.5 Use of Computerized Systems in Planning 4-8
APPENDICES
APPENDIX A: ACRONYMS AND GLOSSARY OF TERMS A-1
ACRONYMS , A-1
GLOSSARY OF TERMS A-4
APPENDIX B: THE CRITERIA USED TO IDENTIFY EXTREMELY
HAZARDOUS SUBSTANCES B-1
APPENDIX C: THE LIST OF EXTREMELY HAZARDOUS SUBSTANCES C-1
APPENDIX D: ADDITIONAL INFORMATION ON LEVELS OF CONCERN D-1
APPENDIX E: SAMPLE PROFILE E-1
APPENDIX F: FIRE AND REACTIVITY HAZARDS F-1
APPENDIX G: EQUATIONS USED FOR THE ESTIMATION OF VULNERABLE
ZONES G-1
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List of Exhibits
PAGE
EXHIBITS
1-1 Overview of Planning Process 1-2
1-2 Title III Information from Facilities Provided in Support
of Plan Development 1-7
1-3 Title III Planning Steps 1-9
2-1 Types of Facilities Where Certain Extremely Hazardous Substances
Might Be Found in Quantities Greater than Their TPQs 2-5
2-2 Information from Hazards Identification 2-8
2-3 The Movement Downwind of a Plume of Airborne Extremely Hazardous
Substances Following an Accidental Release 2-10
2-4 Vulnerability Zones for a Hypothetical Community Resulting from
Airborne Releases of Chemicals A and B 2-11
2-5 Vulnerable Zones along a Transportation Route When Airborne Releases
of Chemicals A and B Occur 2-12
2-6 The Effect of Different Assumptions on the Calculation of the Size
of the Estimated Vulnerable Zone 2-14
2-7 Vulnerable Zones for Five Facilities in a Hypothetical Community 2-15
2-8 Plume Development and Movement During a Hypothetical Accidental
Release 2-16
2-9 Factors Affecting Vulnerable Zone Estimations 2-19
2-10 Summaries of Some Accidents that Occurred in 1980-81 2-24
2-11 Steps in Hazards Analysis 2-26
2-12 Example Hazards Analysis Matrix for a Hypothetical Community 2-29
2-13 Example Qualitative Definitions of Probability of Occurrence 2-31
Example Definitions of Severity of Consequences to People 2-31
2-14 Risk Analysis Matrix 2-32
3-1 Vulnerable Zone Distances for Quantity of Release and Level of Concern.
Rural, F Air Stability, Low Wind Speed. For Quantities of Release Up to
500 Pounds/Minute 3-11
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List of Exhibits
PAGE
3-2 Vulnerable Zone Distances for Quantities of Release and Level of
Concern. Urban, F Air Stability, Low Wind Speed. For Quantities of
Release Up to 500 Pounds/Minute 3-13
3-3 Vulnerable Zone Distances for Quantity of Release and Level of
Concern. Rural, D Air Stability, 12 Miles Per Hour Wind Speed. For
Quantities of Release Up to 500 Pound/Minute 3-15
3-4 Vulnerable Zone Distances for Quantity of Release and Level of
Concern. Urban, D Air Stability, 12 Miles Per Hour Wind Speed. For
Quantities of Release Up to 500 Pounds/Minute 3-17
4-1 Example Hazards Matrix for Planning Community 4-4
B-1 Criteria to Identify Extremely Hazardous Substances that May
Present Severe Health Hazards to Humans Exposed During
a Chemical Accident or Other Emergency B-3
B-2 Criteria to Identify Other Hazardous Substances Produced in
Large Quantities that May Present Severe Health Hazards to
Humans Exposed During a Chemical Accident or Other Emergency B-5
B-3 Other Extremely Hazardous Substances B-6
C-1 List of Extremely Hazardous Substances and Data for Hazards
Analysis (Alphabetical Order) C-2
C-2 List of Extremely Hazardous Substances and Data for Hazards
Analysis (CAS # Order) C-11
D-1 Emergency Response Planning Guidelines D-7
D-2 (Alphabetical) Published Toxicity Guidelines for Extremely Hazardous
Substances that could be used for the Level of Concern D-9
D-3 (CAS #) Published Toxicity Guidelines for Extremely Hazardous
Substances that could be used for the Level of Concern D-18
G-1 Formulas Recommended by Briggs (1973) G-6
J-1 Sample Event Tree Analysis J-5
J-2 Example Fault Tree J-7
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1. Introduction and Overview
1.1 Purpose of This Guide
The purpose of this guide is to help local emer-
gency planning committees (LEPCs) conduct
site-specific hazards analyses for airborne re-
leases of extremely hazardous substances
(EHSs) as required by Title III of the Superfund
Amendments and Reauthorization Act of 1986
(SARA), also known as the Emergency Planning
and Community Right-to-Know Act (EPCRA) .
Although these substances may also threaten
property and the environment, this guide is pri-
marily concerned with lethal effects of airborne
substances on humans. An expanded version of
this document which will also address hazards
such as flammability, explosivity, corrosivity,
and reactivity, is planned. The hazards analysis
guidance in this present document will help to
identify potential problems and serve as the
foundation for planning and prevention efforts
with emphasis on EHSs. (See Section 1.3 for a
definition and brief description of "hazards
analysis. " See Section 1.5.3 for a description of
"extremely hazardous substance. ")
This document represents a joint effort by the
Environmental Protection Agency (EPA), the
Federal Emergency Management Agency
(FEMA), and the Department of Transportation
(DOT) to provide coordinated and coherent
technical guidance. Although this guide can be
useful to all community and industry planners, it
is intended especially for LEPCs established un-
der the provisions of SARA. The three steps of
hazards analysis-hazards identification, vulner-
ability analysis, and risk analysis-provide a de-
cision-making process for the LEPCs to follow
as they undertake the development of compre-
hensive emergency plans mandated by SARA Ti-
tle III. This chapter includes a description of:
the relationship of this guide to general planning
guidance, a general description of hazards
analysis, the legislative and programmatic back-
ground for this technical guidance, and an over-
view of the remaining chapters.
1.2 Emergency Planning;
the National Response Team Planning Guide
Title III of SARA requires each LEPC to prepare a
comprehensive emergency plan by October 17,
1988. For general assistance in preparing a
comprehensive emergency plan, planners
should consult the Hazardous Materials Emer-
gency Planning Guide (NRT-1) prepared by the
National Response Team (NRT). NRT-1 is a
statutory requirement under SARA and was pub-
lished on March 17, 1987. It is available free of
charge from:
Hazardous Materials Emergency
Planning Guide
WH-562A
401 M Street, S.W.
Washington, DC 20460
LEPCs should obtain, read, and understand
NRT-1 before using this technical guide.
Exhibit l-l illustrates the various activities that
are part of the emergency planning process.
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1-1
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Exhibit l-l
Overview of Planning Process*
Local Emergency Planning
Committee Formed
t
,f^
L
Begin to Plan
r i
oordinate with
g Plans
|
(Assess Industry
Response Capabilities
i
Assess Response
Capabilities
i
\
F
(Assess Community
Response Capabilities
1
'
/^ Conduct Hazards >;// x
X Analysis ;XXX
'V /////////////////
Develop Plan
I
seek Plan Concurrence
through State Emergency Response Commission
i
Revise, Test, and
Maintain Plan
From NRT-1
12/87
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NRT-1 offers general guidance on how to ac-
complish all of these planning activities. This
present document offers specific technical guid-
ante for conducting a hazards analysis for the
airborne release of EHSs, as well as a general
consideration of other hazardous substances.
The shaded box in Exhibit l-l indicates where
the material in this technical guide fits into the
overall planning process described in NRT-1,
1.3 Beginning to Plan
Before actually developing a plan, the LEPC
should: review existing plans, review existing re-
sponse capabilities, and conduct a hazards
analysis.
Information from existing plans will prove helpful
in the development of an emergency plan under
Title III. Existing plans may have been prepared
by individual facilities, by communities, by the
State, or by the Regional Response Team (RRT)
of the Federal government. The plans can be
reevaluated and information in them can be tai-
lored to present needs.
NRT-1 and Appendix I of this guide include lists
of questions that LEPCs can use to identify what
prevention and response capabilities are present
at facilities, among transporters, and within local
communities.
LEPCs should conduct a hazards analysis of all
facilities reporting that they have EHSs in quanti-
ties greater than the threshold planning quantity
(TPQ). This hazards analysis should help plan-
ners identify what additional response capabili-
ties are needed. This analysis serves as the ba-
sis for development or revision of the emer-
gency response plans that are mandatory under
Title III of SARA.
1.4 Hazards Analysis
Hazards Identification
Chemical Identity
Location
Quantity
Nature of
the Hazard
V
Vulnerability Analysis
Vulnerable Zone
Human Populations
Critical Facilities
Environment
Risk Analysis
Likelihood of a
Release Occurring
Severity of the
Consequences
A hazards analysis' is a necessary step in com-
prehensive emergency planning for a commu-
nity. Comprehensive planning depends upon a
clear understanding of what hazards exist and
what risk they pose for various members of the
community. This guide follows the definition of
"hazards analysis" used in NRT-1 and focuses
principally on hazards analysis for airborne re-
leases of EHSs.
Hazards analysis as presented in this guidance is intended for use in emergency response planning for EHSs. Its
purpose and the meaning of its terminology are different from the purpose and terms used in "risk assessment" as
defined by NAS. Because local communities will be conducting hazards analyses (as described in this guide) and
risk assessments under different sections of SARA, a discussion of risk assessment can be found in NAS Press,
7983, Risk Assessment in the Federal Government: Managing the Process. Washington D.C. 191 pp.
12/87
1-3
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The hazards analysis described in this guide is a
3-step decision-making process to identify the
potential hazards facing a community with re-
spect to accidental releases of EHSs. All three
steps should be followed even though the level
of detail will vary from site to site. The hazards
analysis is designed to consider all potential
acute health hazards within the planning district
and to identify which hazards are of high priority
and should be addressed in the emergency re-
sponse planning process. The Title III emer-
gency response plan must address all EHSs that
are reported to the State Emergency Response
Commission (SERC), but other substances in-
cluding EHSs below their TPQs may also be in-
cluded. Depending upon the size and nature of
a planning district, the hazards analysis may be
complex or relatively easy. LEPCs that have ac-
cess to the necessary experts might want to
conduct a detailed quantitative hazards analysis.
Such a complete analysis of all hazards may not
always be feasible or practical, however, given
resource and time constraints in individual plan-
ning districts.
General information and an approach to under-
standing the three components of hazards
analysis as it is applied to the EHSs are dis-
cussed in Chapter 2. A brief overview is pre-
sented below.
A. Hazards identification typically provides spe-
cific information on situations that have the po-
tential for causing injury to life or damage to
property and the environment due to a hazard-
ous materials spill or release. A hazards identifi-
cation includes information about:
Chemical identities:
The location of facilities that use, pro-
duce, process, or store hazardous
materials:
The type and design of chemical con-
tainer or vessel:
The quantity of material that could be
involved in an airborne release: and
The nature of the hazard (e.g., air-
borne toxic vapors or mists which are
the primary focus of this guide; also
other hazards such as fire, explosion,
large quantities stored or processed,
handling conditions) most likely to ac-
company hazardous materials spills or
releases.
B. Vulnerability analysis identifies areas in the
community that may be affected or exposed, in-
dividuals in the community who may be subject
to injury or death from certain specific hazard-
ous materials, and what facilities, property, or
environment may be susceptible to damage
should a hazardous materials release occur. A
comprehensive vulnerability analysis provides in-
formation on:
The extent of the vulnerable zones
(i.e., an estimation of the area that
may be affected in a significant way as
a result of a spill or release of a known
quantity of a specific chemical under
defined conditions) ;
The population, in terms of numbers,
density, and types of individuals (e.g.,
facility employees: neighborhood resi-
dents: people in hospitals, schools,
nursing homes, prisons, day care cen-
ters) that could be within a vulnerable
zone:
The private and public property (e.g.,
critical facilities, homes, schools, hos-
pitals, businesses, offices) that may
be damaged, including essential sup-
port systems (e.g., water, food,
power, communication, medical) and
transportation facilities and corridors;
and
The environment that may be affected,
and the impact of a release on sensi-
tive natural areas and endangered spe-
cies.
Chapter 2 discusses vulnerability analysis with a
special emphasis on human populations.
C. Risk analysis is an assessment by the com-
munity of the likelihood (probability) of an acci-
dental release of a hazardous material and the
actual consequences that might occur, based
on the estimated vulnerable zones. The risk
analysis is a judgement of probability and sever-
ity of consequences based on the history of pre-
vious incidents, local experience, and the best
12187
1-4
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available current technological information. It
provides an estimation of:
The likelihood (probability) of an acci-
dental release based on the history of
current conditions and controls at the
facility, consideration of any unusual
environmental conditions (e.g., areas
in flood plains), or the possibility of si-
multaneous emergency incidents
(e.g., flooding or fire hazards resulting
in the release of hazardous materials);
Severity of consequences of human in-
jury that may occur (acute, delayed,
and/or chronic health effects), the
number of possible injuries and
deaths, and the associated high-risk
groups:
Severity of consequences on critical
facilities (e.g., hospitals, fire stations,
police departments, communication
centers);
Severity of consequences of damage
to property (temporary, repairable,
permanent); and
Severity of consequences of damage
to the environment (recoverable, per-
manent) .
To have an accurate view of the potential prob-
lems in a district, the LEPC would need to ad-
dress all of the steps in hazards analysis outlined
above. Each of the three steps should be fol-
lowed even if extensive information is not avail-
able for each site. The process anticipates that
local judgement will be necessary.
1.5 Background
This section briefly describes EPA's original
Chemical Emergency Preparedness Program
(CEPP), other recent public and private sector
programs, and EPCRA.
1.5.1 EPA's Chemical Emergency Prepared-
ness Program
For the past several years, EPA has pursued an
active voluntary program to enhance prepared-
ness and response capabilities for incidents in-
volving the airborne release of EHSs. In June
1985, EPA announced a two-part National Strat-
egy for Toxic Air Pollutants. The first part, estab-
lished under Section 112 of the Clean Air Act,
deals with routine releases of hazardous air pol-
lutants. The second part was the development
of the CEPP, designed to address, on a volun-
tary basis, accidental airborne releases of
acutely toxic chemicals. Since its inception,
CEPP has had two goals: to increase commu-
nity awareness of chemical hazards and to en-
hance State and local emergency planning for
dealing with chemical accidents. These goals
and initial activities influenced the legislative ac-
tion that led to the enactment of Title III of SARA,
where many CEPP objectives are addressed
(see Section 1.5.3).
1.5.2 Other Public and Private Sector Pro-
grams
Awareness of the 1984 Bhopal, India tragedy
and less catastrophic incidents in the United
States has led many State and local govern-
ments to improve their preparedness and re-
sponse capabilities for chemical emergencies.
They developed emergency plans for chemical
accidents, enacted right-to-know legislation to
provide citizens access to information about
chemicals in their community, and organized
hazardous materials planning councils and re-
sponse teams.
In the private sector, the Chemical Manufactur-
ers Association (CMA) has developed and im-
plemented the Community Awareness and
Emergency Response (CAER) program. The
CAER program encourages chemical plant man-
agers to contact community leaders and assist
them in preparing for possible incidents involving
hazardous materials, including those involving
airborne toxics. CAER industry participants can
provide information about chemicals and chemi-
cal processes that exist within the community
(an important source for the "hazards identifica-
tion" phase of a hazards analysis); professional
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expertise to help communities develop emer-
gency plans; equipment and personnel to assist
local officials during emergency notification and
response operations: and specific assistance in
training responders and exercising emergency
plans.
1.5.3 Emergency Planning and Community
Right-to-Know Act of 1986 (Title III of
SARA)
On October 17, 1986, SARA became law. Title
III of SARA contains numerous requirements for
Federal, State, and local governments as well as
private industry in the areas of emergency plan-
ning, community right-to-know, hazardous
emissions reporting, and emergency notifica-
tion. These requirements build upon the original
CEPP (elements of which are now mandatory),
numerous existing State and local programs
aimed at community right-to-know and prepar-
edness, and the CMA CAER program.
The objectives of Title III are to improve local
chemical emergency response capabilities (pri-
marily through improved emergency planning
and notification) and to provide citizens and lo-
cal governments access to information about
chemicals in their localities.
Title III addresses planning by: (1) identifying
the EHSs that trigger the planning process: (2)
requiring facilities to identify themselves if they
have quantities of EHSs exceeding the TPQs; (3)
requiring the establishment of a State and local
planning structure and process (including specif-
ics on committee membership); (4) requiring fa-
cilities to make information available to local
planners: and (5) specifying the minimum con-
tents of local emergency plans. This guidance
includes information about all of these topics.
(See NRT-1 for an additional discussion of plan
contents and guidance for planning). Exhibit 1-2
summarizes the types of information that will be
available as a result of compliance with Title III,
and indicates how local planners can use the in-
formation. Planners should not only be aware of
Federal, but also of State and local require-
ments that apply to emergency planning.
A. Identifying the Extremely Hazardous
Substances that Trigger the Planning
Process.
Title III required EPA to publish a list of EHSs and
TPQs for each of those substances. EPA fulfilled
this requirement in a rule published on April 22,
1987 (Federal Register, Vol. 52, No. 77, pp.
13378-13410). The list of EHSs included the
402 chemicals found in the CEPP Interim Guid-
ance List of Acutely Toxic Chemicals2 and four
additional chemicals added as a result of new
information. Four chemicals have been re-
moved from the list and 36 others are proposed
for delisting as they do not meet the acute le-
thality criteria. (See Appendix C for the list of
EHSs and Appendix B for an explanation of the
criteria used in identifying these chemicals.)
B. Planning Structure and Process.
Sections 301-303 of Title III include the following
required steps:
i. State Governors appointed SERCs by
April 17, 1987. SERCs identified local
emergency planning districts (LEPDs)
by July 17, 1987 and appointed mem-
bers of the LEPC by August 17, 1987.
SERCs are to coordinate and supervise
the work of the LEPCs, and review all
emergency plans to ensure that all the
local plans for any one State are coor-
dinated.
ii. Facilities had to notify SERCs by May
17, 1987 if they have any listed EHS(s)
that exceed the designated TPQ. The
TPQ is a specific quantity assigned to
each of the EHSs. If a facility has pre-
sent at any time an EHS in an amount
greater than the TPQ, the facility must
identify itself to the SERC. The SERC
notifies the LEPC to include the facility,
if appropriate, in its comprehensive
emergency plan. SERCs can specify
other facilities to be included in the
emergency plan.
2 Title III of SARA replaces the term "acutely toxic chemical" with "extremely hazardous substance".
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*J
.
00
-Exhibit 1-2
TITLE III INFORMATION FROM FACILITIES PROVIDED
IN SUPPORT OF PLAN DEVELOPMENT
Information Generated by
Title III Compliance
Title III Authority
How LEPC Can Use
the Information
Facilities subject to Title III planning requirements
(including those designated by the Governor or SERC)
Additional facilities near subject facilities (such as hospitals,
natural gas facilities, etc.)
Transportation routes
Major chemical hazards (chemical name, properties,
Section 302;
Notice from Governor/SERC
Sections 302 (b) (2) ; 303 (c) (1)
Sections 303(c) (1) ; 303(d) (3)
Section 303 (d) (3) for extremely
Hazards analysis
identification
Hazards analysis
analysis
Hazards analysis
identification
Hazards analysis
Hazards
Vulnerability
- Hazards
- Hazards
location, and quantity)
Facility and community response methods, procedures,
and personnel
Facility and community emergency coordinators
Release detection and notification procedures
Methods for determining release occurence and
population affected
Facility equipment and emergency facilities; persons
responsible for such equipment and facilities
Evacuation plans
Training programs
Exercise methods and schedules
hazardous substances used,
produced, stored
Section 311 MSDSs for chemicals
manufactured or imported
Section 312 inventories for
chemicals manufactured or imported
Sections 303(c) (2); 303(d) (3)
Sections 303 (c) (3); 303 (d) (1)
Sections 303(c) (4) ; 303 (d) (3)
Sections 303 (c) (5) ; 303 (d) (3)
Sections 303 (c) (6) ; 303 (d) (3)
Sections 303(c) (7) ; 303(d) (3)
Sections 303 (c) (8) ; 303(d) (3)
Sections 303(c) (9); 303(d) (3)
identification
Response functions (see pp. 49ff
of NRT Planning Guide)
Assistance in preparing and
implementing the plan (see p. 11
of NRT Planning Guide)
Initial notification; Warning systems
(see pp. 50, 53 respectively of
NRT Planning Guide)
Hazards analysis - Vulnerability
analysis and risk analysis
Resource management
Evacuation planning
Resource management
Testing and updating
-------
iii. Facilities must provide the following in-
formation to the LEPC: the name of a
facility representative (by September
17, 1987) to serve as facility emer-
gency coordinator and assist the LEPC
in the planning process; information re-
quested by the LEPC that is necessary
for developing and implementing the
emergency plan (see Section
303(d) (3) of Title III of SARA); and any
changes at the facility that could affect
emergency planning. (Facility compli-
ance with this SARA requirement will
make available much information that
should prove helpful for hazards analy-
sis and annual plan revisions.)
iv. LEPCs must prepare comprehensive
emergency plans for all facilities sub-
ject to the regulations by October 17,
1988.
v. Transporters of EHSs do not have to
notify SERCs under Section 302. Sec-
tion 327 of Title III of SARA states that
Title III does not apply to any substance
or chemical being transported, includ-
ing transportation by pipeline, except
as provided in Section 304. Section
304 requires notification of releases of
EHSs and Comprehensive Environ-
mental Response, Compensation and
Liability Act of 1980 (CERCLA) hazard-
ous substances from facilities, pipe-
lines, motor vehicles, rolling stock and
aircraft. Barges and other vessels are
exempted from Section 304 reporting.
The Title III planning structure for receiving infor-
mation and formulating plans is displayed in Ex-
hibit 1-3.
C. Other Title III Information for Planners.
This guide does not include a detailed descrip-
tion of Sections 304, 311, 312, and 313 of Title
III. Details of these sections may be found in
Appendix A of NRT-1. What is important for us-
ers of this guide to know is that facilities comply-
ing with these sections of Title III will provide in-
formation to LEPCs that may prove useful for
hazards analysis and emergency plan develop-
ment and revision.
1.6 Contents of this Guide
The components of a hazards analysis are dis-
cussed in more detail in the next chapter of this
guide. The discussion in Chapter 2 is as simpli-
fied and direct as possible, given the complexity
of hazards analysis. Additional technical material
is in the appendices. Chapter 3 provides a de-
tailed step-by-step procedure for hazards
analysis of the EHSs at the local level. Guidance
for incorporating results of a hazards analysis
into the overall planning process is found in
Chapter 4.
Several appendices have been included in this
guide. Appendix A contains a list of abbrevia-
tions and acronyms and a glossary of technical
terms. (Users of this guide should regularly con-
sult Appendix A for help in understanding the
terms used). Appendix B describes EPA's crite-
ria for identifying EHSs. Appendix C contains the
list of EHSs designated by Title III of SARA both
alphabetically and by Chemical Abstract Service
(CAS) number. This appendix also provides in-
formation on important physical properties of
each substance and the levels of concern (LOG)
which are required to estimate vulnerable zones.
Appendix D provides information and calcula-
tions concerning exposure levels of EHSs and
the basis for the LOG. Appendix E is a sample
chemical profile of one of the EHSs (acrolein).
Appendix F contains descriptions of fire and re-
activity hazards. Appendix G contains more
technical information for estimating and
reevaluating vulnerable zones. As a warning to
planners to avoid automatically establishing
evacuation distances from the estimated vulner-
able zones, Appendix H includes a discussion of
issues to be considered for evacuation. Appen-
dix I supplements Chapters 3 and 4 with a proce-
dure for gathering important information to
evaluate sites for contingency planning. Ap-
pendix J details other methods for evaluating
hazards and supplements Chapters 2 and 3.
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Exhibit 1-3
Title III Planning Steps
Facilities
©
Report if
subject to
regulation
Identity facility
representative for
planning and
submit information
on request
SERC
2) Appoints
5) Submits plan for review
LEPC
4 ) (prepares plan)
SERC = State emergency response commission
LEPC = Local emergency planning committee
12/87
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Appendix K provides an evaluation guide for the
use of computerized systems that could be of
assistance in emergency response planning.
Appendix L is an annotated bibliography of perti-
nent references. Appendix M lists the EPA Re-
gional preparedness contacts and coordinators
as well as FEMA Regional contacts.
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2. Hazards Analysis: An Overview
This chapter provides an overview of hazards
analysis as it relates to emergency planning for
extremely hazardous substances (EHSs) under
Title III of the Superfund Amendments and
Reauthorization Act of 1986 (SARA). The ap-
proch to hazards analysis presented here is not
mandatory but it will assist localities in meeting
the planning requirements of SARA Title III. As in
Chapter 1 this chapter follows the same general
format and supports the principles presented in
NRT-1. It represents a relatively simple yet ef-
fective means of evaluating potential hazards re-
sulting from the accidental release of an EHS.
The three basic components in the hazards
analysis discussed here are (1) hazards identifi-
cation, (2) vulnerability analysis, and (3) risk
analysis.
The step-by-step process planners should fol-
low in conducting a hazards analysis is outlined
in Exhibit 2-1 1 (pp. 2-26 and 2-27) and de-
scribed in detail in Chapter 3. The overview in
this chapter should be carefully read and under-
stood before attempting an actual hazards
analysis as outlined in Chapter 3. The informa-
tion in Appendices I and J should also be re-
viewed.
2.1 Hazards Identification
Hazards Identification
Chemical Identity
Location
Quantity
Nature of
the Hazard
Vulnerability Analysis
Vulnerable Zone
Human Populations
Critical Facilities
Environment
Hazards identification, the first step in hazards
analysis, is the process of collecting information
on:
The types and quantities of hazardous
materials in a community;
The location of facilities that use, pro-
duce, process, or store hazardous mate-
rials;
Conditions of manufacture, storage, proc-
essing, and use:
Transportation routes used for transport-
ing hazardous materials: and
Potential hazards associated with spills or
releases.
Risk Analysis
Likelihood of a
Release Occurring
Severity of the
Consequences
This information can be used by emergency
planners, as well as by fire/rescue services, po-
lice departments, and environmental protection
departments as they prepare for, respond to,
and recover from emergencies involving hazard-
ous materials. Section 2.1 .1 discusses the
types of hazards that chemicals may pose to the
community. Section 2.1.2 discusses sources of
data for hazards identification and procedures
that planners may use in gathering data. Infor-
mation derived from hazards identification will
subsequently be used in vulnerability analysis
(described in Section 2.2) and risk analysis (de-
scribed in Section 2.3).
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2.1.1 Identification of Hazardous Chemicals
Hazards are situations that have the potential for
causing injury to life and/or damage to property
and the environment. Chemicals may be poten-
tially hazardous because of their toxicity or
physical/chemical properties such as flammabil-
ity and reactivity. Comprehensive planning for
hazardous materials emergencies should en-
compass all hazards capable of causing loss of
life, injury or damage to health, or damage to
property or the environment. The guidance in
this document focuses on the single hazard of
acute toxicity, specifically acute lethality to indi-
viduals as a result of airborne releases of EHSs.
Extremely Hazardous Substances
Chemicals with high acute lethality have the po-
tential for causing death in unprotected popula-
tions after relatively short exposure periods at
low doses. On the basis of toxicity criteria (dis-
cussed in Appendix B), EPA identified a list of
chemicals with high acute toxicity (listed in Ap-
pendix C) from the more than 60,000 chemicals
in commerce. This is the list of EHSs required
by Title III of SARA. Because airborne releases
of acutely lethal substances, while infrequent,
can be catastrophic, Title III requires considera-
tion of these EHSs in emergency plans.
Although all of the listed substances are ex-
tremely toxic, the hazards presented by a spill
will also vary depending on the physical and
chemical properties of the substance spilled and
the conditions under which the substance is han-
dled (e.g., elevated temperatures and pres-
sures) . Some substances are highly volatile and
thus likely to become airborne, while others are
non-powdered solids that are unlikely to be-
come airborne. The potential to become air-
borne was considered in the determination of
the threshold planning quantity (TPQ) for 'EHSs.
A summary of publicly available information on
the listed substances is presented in the EPA
Chemical Profiles issued in December 1985 as
part of the Chemical Emergency Preparedness
Program (CEPP) Interim Guidance. The profile
for each chemical includes synonyms as well as
information on recommended exposure limits,
physical/chemical characteristics, fire and ex-
plosion hazards and fire fighting procedures, re-
activity, health hazards, use, and precautions.
Profiles for each EHS are available. The profiles
are currently being updated and supplemented
with additional information, including emergency
medical treatment guidance and information
about personal protective equipment which
should be used by emergency response teams.
The revised profiles should be available by
spring 1988. See Appendix E for a revised sam-
ple chemical profile.
Other Hazards
In addition to acute lethality, substances may
cause other types of toxic effects in people ex-
posed to them (e.g., long-term or short-term
illness, damage to skin or eyes). Criteria for the
identification of chemicals (other than those that
are acutely lethal) that cause serious health ef-
fects from short-term exposures are being de-
veloped on a priority basis. When such criteria
are established, they will be used in expanding
the list of EHSs. At that time, guidance will be
provided to address planning for chemicals that
cause these other toxic effects, it should be
noted that even substances that are relatively
less toxic may pose a hazard if they become air-
borne in large quantities.
Hazards other than toxicity (e.g., fire, explosion,
and reactivity) that may be associated with both
EHSs and other substances should be consid-
ered in emergency preparedness and response
planning and are discussed briefly in Appendix F.
In many cases, emergency response agencies
such as fire departments may have already ad-
dressed these types of hazards. Hazards other
than toxicity will be considered in future revisions
to the list of EHSs.
2.1.2 Procedures for Hazards Identification
Hazards identification begins with the identifica-
tion of the facilities that have EHSs in the com-
munity. Mandatory reporting by facilities, under
Title III, will now identify those facilities that pos-
sess one or more of the EHSs in excess of its
TPQ . In addition, because considerable infor-
mation on the properties, amounts, and condi-
tions of use of EHSs is needed to prepare reli-
able emergency plans, Title III specifically
states: "the owner or operator of the facility
shall promptly provide information to such com-
mittees necessary for developing and imple-
menting the emergency plan" (Section
303 (d) (3) ). Supplemental information on the
quantity and location of hazardous chemicals will
12/87
2-2
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become available in March of 1988, fulfilling re-
quirements under Sections 311 and 312, Title III
of SARA. Facility inspections will remain impor-
tant information-gathering activities for local
planners, as well as for safety and emergency
response personnel who must establish accident
prevention programs and pre-emergency plans.
Other information available from the site may in-
clude facility hazard assessments, facility safety
audits, spill prevention and control countermea-
sures (SPCC), and probability-based risk as-
sessments (PRAs) . Although hazards identifica-
tion should also include identification of trans-
portation routes through the community for
EHSs, this information will not be reported under
Title III of SARA.
This section will discuss how to obtain informa-
tion on EHSs and the types of facilities that are
engaged in manufacturing , processing, storing,
handling, selling, and transporting EHSs. This
section also briefly discusses sources of infor-
mation on other hazardous substances.
Extremely Hazardous Substances
EHSs present in quantities above their TPQ will
be identified for the Local Emergency Planning
Committee (LEPC) by the reporting facilities.
However, EHSs in quantities below the TPQ
could also present a hazard to the community
under certain circumstances and the LEPCs may
wish to include them in their hazards analysis.
As noted in Section 1.5.3, Title III of SARA in-
cludes the following provisions concerning EHSs:
If a facility has one or more chemicals
from the current list of EHSs in quantities
exceeding its TPQ, it must report this fact
to the State emergency response com-
mission (SERC).
The committee can obtain from the facility
information on what chemicals are pre-
sent and in what amounts. The facility
emergency coordinator will be the primary
source of information. The specific
chemical identity of an EHS may some-
times be withheld as a trade secret. Even
when the chemical identity is held confi-
dential, however, certain information on
the specific chemical is important for sub-
sequent steps in hazards analysis and will
be provided by the facility.
The following points should be discussed with fa-
cility representatives to obtain information for
hazards identification:
Chemical identity, including chemical
name and Chemical Abstract Service
(CAS) number for substances not claimed
as trade secret;
Quantities of EHSs normally present, in-
cluding:
(1) Total quantity of each EHS at the fa-
cility. The quantity of chemical can
vary from day to day depending on
operations. Planners should deter-
mine the amount that is typically on
hand on any given day. This informa-
tion is necessary to assess the po-
tential impact should an accident in-
volving this quantity occur.
(2) Maximum quantity that could be pre-
sent in each storage or processing
location. Facilities may use the same
chemical in many different locations
and have the capacity to store more
than what is typically on hand. Plan-
ners need to determine the maximum
quantity, even though the facility may
rarely have this much on-site. Haz-
ards associated with the maximum
quantity may be much different than
the hazards associated with the typi-
cal quantity. These differences need
to be addressed by planners.
(3) Configuration of storage, including
the maximum potential quantity in a
single storage or processing vessel.
Some facilities handle, quantities of
chemicals in isolated storage vessels
while others may have two or more
interconnected vessels to allow
greater flexibility in the use of storage
capacity. It is possible that an acci-
dent involving one vessel will involve
the inventory in another if they are in-
terconnected. The maximum poten-
tial quantity in a single vessel or
group of interconnected vessels must
be known to estimate the impact of
an accidental release (see "vulner-
ability analysis" in Section 2.2).
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If the chemical identity is held confidential,
information about certain properties of the
substance will be provided by the facility
to allow a hazards analysis to proceed, in-
cluding:
(1) Physical state. At ambient conditions
(room temperature and atmospheric
pressure) is the chemical a gas, liq-
uid, or solid? If solid, is it powdered
(with less than 100 micron particle
size), in solution, or molten?
(2) Approximate vapor pressure (in milli-
meters of mercury or atmospheres),
if the substance is a liquid or is a
solid handled in molten form. For the
liquid, the vapor pressure at handling
temperature should be obtained,
while the vapor pressure at the melt-
ing point should be obtained for the
molten solid.
(3) Approximate level of concern (LOG)
(the concentration of EHS in air
above which there may be serious ir-
reversible health effects or death as
a result of a single exposure for a
relatively short period of time). The
approximate concentration in air that
equals the LOG in grams per cubic
meter is needed in the vulnerable
zone analysis (see Appendices C and
D).
The approximate values provided should
be sufficiently close so as not to signifi-
cantly alter the size of the estimated
zones (see Section 2.2).
Conditions under which the chemicals are
processed, handled, or stored, including:
(1) Temperature. Facilities may keep
certain substances at temperatures
other than ambient depending on
their use.
(2) Pressure. Some substances must be
stored under pressure (e.g., lique-
fied gases).
(3) Other unique features of the handling
systems employed to manufacture,
process, store, use or otherwise han-
dle the substance at the facility. This
information is useful for the risk
analysis portion of the hazards analy-
sis. See Appendix J for more infor-
mation. Note that some of this infor-
mation might be held as trade secret
by the facility. Planners should work
closely with facility representatives to
obtain information necessary for
emergency plan development.
Exhibit 2-1 presents several chemicals from the
list of EHSs and some types of facilities other
than chemical plants where these chemicals
might be present in quantities exceeding the
TPQ. Some of the EHSs in the exhibit might be
found in other types of facilities in smaller quan-
tities (e.g., chemicals in laboratories).
Hazardous materials, including EHSs, are also
transported through, by, or over communities by
highway vehicles, rail cars, watercraft, and air-
craft virtually 24 hours a day. Shipments may
range from less than a pound to thousands of
pounds of material. Because transporters are
not required to report under SARA Sections 302
and 303, identification of routes through a com-
munity over which EHSs are transported will be
more difficult than the identification of fixed fa-
cilities. Nevertheless, transportation routes and
transported chemicals should be identified if
possible.
The experience gained through Department of
Transportation (DOT) pilot planning projects
demonstrates that identification of transportation
hazards for emergency planning can be done by
gathering information directly at the community
level (see Hazardous Materials Transportation: A
Synthesis of Lessons Learned from the DOT
Demonstration Project) . Usefull information may
be collected with assistance from representa-
tives of trucking, rail, air freight, and shipping
industries. Facility representatives may be able
to provide data on the shipping and transfer of
EHSs, although this approach will identify only
those transported materials destined for local fa-
cilities. The following points could be discussed
with facility representatives:
Frequency of shipments (daily, weekly, ir-
regular schedule) ;
Form of shipment (tank truck, tank car,
drums, boxes, carboys in trucks or vans,
pipelines, barges) ;
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Exhibit 2-1
Types of Faclities where Certian Extremely Hazardous Substances Might be
Found in Quantities Greater than their TPQs
Type of Facility
Blueprinting Facilities
Bulk Storage Facilities
Farms
Frozen Food Processing
Facilities
Pesticide Distributors
Processing Plants/
Formulators
Plumbing, Heating, and Air
Conditioning Companies
Pulp and Paper Plants
Retail Stores
Swimming Pools
Warehouses
Water Treatment Facilities
*TPQ for Aldicarb is 100 pounds
Etremely
Ammonia
(100 Ibs)
X
X
X
X
X
X
X
X
for fine powders or
Hazardous Substance (TPQs in parentheses)
Chlorine Sulfuric Acid Phosgene Aldicarb
(100 Ibs) (500 Ibs) (10 Ibs) (100 Ibs/
10,000 Ibs)
X
X
X
X
XXX
X X
X
X X
X X
solutions, 10.000 pounds otherwise.
12187
2-5
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Quantity of shipments (tons; gallons;
number of drums, tanks, vats or car-
boys); and
Transportation routes through the commu-
nity (highways, railroads, pipelines).
The Hazardous Materials Transportation Act
(HMTA) establishes DOT as the responsible
agency for guidance on routing controls. Pro-
posed Changes in routes should be made in ac-
cordance with the Guidelines for Applying Crite-
ria to Designate Routes for Transporting Harzard-
ous Materials. DOT FHWA 1980.
Other Hazardous Materials
Planners can apply the toxicity criteria used by
EPA for the list of EHSs (see Appendix B) to de-
termine whether other chemicals at facilities in
the area qualify as EHSs even though they are
not listed as such under the Federal regulations.
Planners may also want to obtain information on
transportation of other hazardous materials, as
described above for EHSs. The discussion points
listed in the previous section on EHSs could also
be raised with facility representatives and trans-
portation industry representatives with reference
to other hazardous substances.
Hazardous materials can be found throughout
most communities in several types of sites and
facilities. Besides obvious sites and facilities
(e.g., flammable liquid storage tanks, gasoline
stations, chemical supply companies), hazard-
ous materials are likely to be found at other
places, see Exhibit 2-1 (e.g., dry cleaners, auto
body shops, hospitals, and construction sites).
Information on hazards other than toxicity asso-
ciated with the chemicals on the list of EHSs
may be obtained from the EPA Chemical Pro-
files. Flammability and reactivity data on many
other chemicals are available in the Fire Proteg-
tion Guide on Hazardous Materials developed by
the National Fire Protection Association (NFPA) .
The Hazardous Materials Table (49 CFR 172),
developed by DOT, classifies hazardous materi-
als in transportation by the type of hazards they
present. (See also the DOT Hazardous Materials
Table in the Proposed Rule of November 6,
1987, Federal Register, Vol. 52, No. 215, pp.
42787-42931.) Planners might Want to use
those chemicals listed by the NFPA with the
highest flammability and reactivity ratings, and
those listed by DOT in certain hazard classes, as
a starting point for identification of these types
of hazards in the community. The United Nations
publication, Recommendations on the Transport
of Dangerous Goods, is also a useful source of
information. Another source of information on
many chemicals is the Coast Guard's Chemical
Hazards Response Information System (CHRIS)
hazardous chemical data base.
2.1.3 Summary of Useful Information Result-
ing from Hazards Identification
At the conclusion of the hazards identification
step of hazards analysis, planners should have
the following information:
A list of EHSs present at facilities in the
district in quantities exceeding the TPQ;
the properties of these EHSs: and where,
in what quantity, and under what condi-
tions they are used, produced, proc-
essed, or stored. Mixtures of chemicals
will be reported if the portion of EHSs in the
mixture is equal to or greater than one
percent and more than the TPQ.
Information on chemicals claimed as trade
secret, including physical state, approxi-
mate vapor pressure of liquids and molten
solids, and approximate LOG as defined in
this guidance.
Routes used for transportation of EHSs
through the planning district.
In addition, although it is not presently required
to meet the statutory requirements for emer-
gency plan development under Title III of SARA,
planners may obtain the following information
during hazards identification if necessary for de-
veloping and implementing an emergency plan:
A list of EHSs present in quantities less
than the TPQ and where, in what quantity,
and under what conditions they are used,
produced, processed, or stored.
Hazards besides airborne toxicity posed
by the EHSs in the community.
Chemicals other than those listed that
meet the acute lethality criteria.
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A list of other hazardous chemicals and
where, in what quantity, and under what
conditions they are used, produced, proc-
essed, or stored; and the type of hazard
they pose.
Routes used for transportation of other
hazardous materials through the commu-
nity.
Exhibit 2-2 summarizes the types and sources
of information obtained during hazards identifi-
cation.
2.2 Vulnerability Analysis for Airborne Hazardous Substances
Hazards Identification
Chemical Identity
Location
Quantity
Nature of
the Hazard
Vulnerability Analysis
Vulnerable Zone
Human Populations
Critical Facilities
Environment
Risk Analysis
Likelihood of a
Release Occurring
Severity of the
Consequences
Vulnerability analysis is the second part of the
three-part hazards analysis. This section out-
lines a process that can be used in performing a
vulnerability analysis for facilities that have
chemicals on the Section 302 list of extremely
hazardous substances (EHSs) and transporta-
tion routes used for transporting these sub-
stances to and from the fixed facilities or
through the communities. (The facilities and
transportation routes should be identified as de-
scribed in Section 2.1).
The vulnerability analysis will provide information
that will be helpful in fulfilling planning require-
ments under Title III of SARA. This information
includes:
An estimation of the vulnerable zone for
each EHS reported and the conditions and
assumptions that were used to estimate
each vulnerable zone:
The population, in terms of numbers and
types (e.g., neighborhood residents: high
density transient populations such as
workers and spectators in auditoriums or
stadiums; sensitive populations in hospi-
tals, schools, nursing homes, and day
care centers) that could be expected to
be within the vulnerable zones: and
Essential service facilities such as hospi-
tals, police and fire stations, emergency
response centers, and communication fa-
cilities,
Although this guide is primarily concerned with
the impact of EHSs on the surrounding human
population, planners may also choose to con-
sider as part of their vulnerability analysis the pri-
vate and public property (e.g., homes, schools,
hospitals, businesses, offices) that may be af-
fected, including essential support systems
(e.g. water, food, power, medical), as well as
sensitive environments (e.g., drinking water
supplies, food crops, or animal habitats). Con-
sideration of property and sensitive environ-
ments may be particularly important for chemi-
cal releases that pose hazards other than those
associated with acute toxicity. Planners can re-
fer to community emergency services (e.g., fire
departments, police departments, hospitals) for
assistance in obtaining information about the
population and essential services within the vul-
nerable zone.
2.2.1 General Description of Estimation of
Vulnerable Zones
For purposes of this guidance, a vulnerable zone
is an estimated geographical area that may be
subject to concentrations of an airborne EHS at
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Exhibit 2-2
INFORMATION FROM HAZARDS IDENTIFICATION
assstusxtsMtoaasaataaKtoeiaea&i
Essential Information
Facilities in community with
EHSs in quantities exceeding
the TPQ
identity of EHSs in community
Quantity of EHSs present
Transportation routes for EHSs
Other Useful information
identity and location of other
acutely toxic chemicals
Source of Information
Facilities must report to SERC
information will be made available
to LEPC's
Facility emergency coordinator
Facility emergency coordinator
Facility emergency coordinator,
representative of transportation
industries
Information to be provided now under
Section 303 (d) (3) and in the
future under Sections 311, 312,
and 313 of SARA: facility
emergency coordinators
Information on hazards other than
toxicity of EHSs
Information on other hazardous
substances, including:
o Identity
o Location
o Quantity
o Hazards
o Transportation routes
EPA Chemical Profiles; facility
emergency coordinators
Information to be provided now under
Section 303 (d) (3) and in the
future under Sections 311, 312, and 313
of SARA: community sources
Representatives of transportation
industries and facilities receiving ship-
ments of chemicals
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levels that could cause irreversible acute health
effects or death to human populations within the
area following an accidental release. Vulnerable
zones are based on estimates of the quantity of
an EHS released to air, the rate of release to air,
airborne dispersion, and the airborne concentra-
tion that could cause irreversible health effects
or death. Release and dispersion methodolo-
gies are not precise and provide only estimates
of the actual distances and areas that may be
affected by an accidental release. Many meth-
ods are available to evaluate both releases and
airborne dispersion. They vary in their assump-
tions and therefore the results obtained may
differ. The dispersion models selected for this
guidance are described in Appendix G.
At the time of an accidental release, with the
wind generally moving in one direction, the area
affected by a release is the area downwind only.
Because the wind direction at the time of an ac-
tual accidental release cannot be predicted,
planners must consider all possible wind direc-
tions and subsequent plume paths. (A plume is
the cloud formation of airborne chemical that re-
sults from a release (Exhibit 2-3).) Conse-
quently, the estimated vulnerable zones are cir-
cles with the potential release site located at the
center (Exhibit 2-4). Because it is not possible
to predict the exact location of a transportation
accident, the estimated vulnerable zone for po-
tential releases associated with transportation of
an EHS is a "moving circle" or corridor (Exhibit
2-5).
The size of an estimated vulnerable zone de-
pends upon the distance the airborne chemical
travels before it disperses and is diluted in the
air to a concentration below a "level of concern"
(see subsection D below) for acute health ef-
fects or death. This distance depends on sev-
eral variable factors.
2.2.2 Variables in Estimating Size of Vulner-
able Zones
Many of the variables are very complex and it is
beyond the scope of this document to discuss
them all in detail. In addition many do not have
a significant impact on the size of estimated vul-
nerable zones given the imprecise nature of
these assumptions. The major factors affecting
the size of a vulnerable zone for emergency
planning are described below.
A. Quantity and Rate of Release to Air
Not all of a released chemical will necessarily
become airborne. The quantity that actually be-
comes airborne and the rate at which it be-
comes airborne depend upon:
Total quantity released or spilled:
Physical state (solid, liquid, gas); and
Conditions (e.g., temperature, pressure)
under which the chemical is stored or han-
dled.
Gases typically become airborne more readily
than liquids. Liquids or molten solids generally
become airborne by evaporation. The rate at
which they become airborne (rate of volatiliza-
tion) depends on their vapor pressure, molecu-
lar weight, handling temperature, the surface
area of the spill (pool size), and the wind speed
at the time of the spill. A spilled liquid with a
higher vapor pressure will become airborne
(through evaporation) more rapidly than a
spilled liquid with a low vapor pressure at the
same temperature. Also, a liquid will evaporate
faster if the surface area or pool size of the spill
is increased, if the liquid has a higher than ambi-
ent temperature, and if it is exposed to greater
wind speeds. Molten solids will volatilize much
faster than those in solid state. Solids as pow-
ders are likely to become airborne only if pro-
pelled into the air by force (e.g., by an explosion
or the loss of air filtration in a pneumatic convey-
ing system). Solids that are not powdered are
less likely to become airborne.
The size of an estimated vulnerable zone is pro-
portional to the quantity and rate of release.
Smaller release volumes based on similar as-
sumptions will yield lower release rates which will
reduce the size of the estimated vulnerable
zone.
The application of these variables in the vulner-
able zone estimate will be discussed later in this
chapter and also in Chapter 3. For more infor-
mation on the calculations and derivations re-
lated to these variables, see Appendix G.
B. Meteorological Conditions
Among the many meteorological factors, wind
speed and atmospheric stability have the great-
est effect on the size of estimated vulnerable
zones.. Increased wind speed and the
12/87
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Exhibit 2-3
The Movement Downwind of a Plume of an Airborne
Extremely Hazardous Substance Following
an Accidental Release.
Wind
Direction
Side
View
Facility
Plume
C>
Wind
Direction
Facility
Top
View
Plume
Note: Plume moves in the same direction as wind and tends to become
longer and less concentrated as it moves downwind. This is due
to the dispersion of the extremely hazardous substance in air.
12/87
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Exhibit 2-4
Vulnerable Zones for Community Planning
Resulting from Airborne Releases of Chemicals A and B
Perimeters
Estimated vulnerable zone for Chemical A
Estimated vulnerable zone for Chemical B
DA - Distance from release site to the point at which the airborne chemical
concentration equals the level of concern for Chemical A
DB - Distance from release site to the point at which the airborne chemical
concentration equals the level of concern for Chemical B
A/ore: Differences in the estimated vulnerable zones of Chemical A and Chemical B under identical
meteorological conditions may be due to amount released, rate of release to air (volatilization rate),
level of concern, or any combination of these variables.
For purposes of planning the vulnerable zone is expressed as a circle since the wind direction at the
time of an actual release is not known. Under conditions of an accidental release, the area enveloped
by a plume will represent only a portion of the circle.
12/87
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Exhibit 2-5
Vulnerable Zones along a Transportation Route
When Airborne Releases of Chemicals C and D Occur
Estimated vulnerable zone for Chemical C
Estimated vulnerable zone for Chemical D
Note: Transportation route would a/so be considered pan of the estimated vulnerable zone.
12/87
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accompanying decreased atmospheric stability
will result in greater airborne dispersion (and di-
lution) of a chemical, and a resultant decrease
in the size of the estimated vulnerable zone.
Additional information on these meteorological
variables is presented in Appendix G.
C. Surrounding Topography
The topography of the area surrounding a poten-
tial release site will affect the size of the esti-
mated vulnerable zones.
The principal topographical factors are natural
obstructions such as hills and mountains, and
man-made structures such as high-rise build-
ings. Natural formations and surface conditions
are always site-specific and therefore beyond
the scope of this guidance. If significant natural
barriers exist within estimated vulnerable zones,
appropriate technical support should be solicited
from local, State, or EPA Regional meteorolo-
gists or experts in the private sector including
the facility. On the other hand, general method-
ologies do exist for describing the dispersion of
chemical substances in urban areas containing
high buildings and in flat, rural areas. The meth-
odology for estimating vulnerable zones in urban
and rural areas is discussed later in this chapter
and is presented in Chapter 3.
D. Levels of Concern
A level of concern (LOG), for purposes of this
document, is defined as the concentration of an
EHS in air above which there may be serious ir-
reversible health effects or death as a result of a
single exposure for a relatively short period of
time.
There is at present no precise measure of an
LOG for the chemicals listed as EHSs. Various
organizations over the past several years have
been developing acute exposure guidelines for a
limited number of hazardous chemicals; the
methodology, however, is still under develop-
ment. The preliminary guidelines and the pro-
gress to date are described in detail in Appendix
D. Until more precise measures are developed,
surrogate or estimated measures of the LOG
have been identified for the listed EHSs. Local
officials may choose values for the LOG different
from those estimated in this guidance, depend-
ing upon their requirements, the specific char-
acteristics of the planning district or site, and the
level of protection deemed appropriate. Ex-
treme caution and prudence should be exer-
cised when choosing an LOG.
For the purposes of this guidance, an LOG has
been estimated by using one-tenth of the "Im-
mediately Dangerous to Life and Health" (IDLH)
level published by the National Institute for Occu-
pational Safety and Health (NIOSH) or one-tenth
of an approximation of the IDLH from animal tox-
icity data. Other exposure guidelines that may
be used to estimate LOG include the "Threshold
Limit Value" (TLV) published by the American
Conference of Governmental Industrial Hygien-
ists (ACGIH), guidelines developed by the Na-
tional Research Council (NRG) of the National
Academy of Sciences (NAS), and Emergency
Response Planning Guidelines (ERPGs) under
development by a consortium of chemical com-
panies. These values are discussed and listed
in Appendix D. The use of LOG in the vulnerable
zone estimate is discussed later in this chapter
and in Chapter 3.
2.2.3 The Relationship of Estimated Vulner-
able Zones to Actual Releases
The estimated vulnerable zones are shown as
circles with different radii in Exhibits 2-6 and 2-7
to illustrate how changing conditions or assump-
tions can influence the vulnerable zone esti-
mate. At the time of an accidental release, only
some portion of the estimated vulnerable zone
will actually be involved. The specific area cov-
ered by the plume will be determined principally
by wind direction and the degree of dispersion of
the plume. The area through which the plume
moves is generally referred to as a plume "foot-
print." Exhibit 2-8 shows the plume footprint for
the release of a sample chemical substance.
Note that the actual concentration of the air-
borne chemical tends to decrease as it moves
further downwind from the release site because
of continual mixing and dilution (dispersion) of
the chemical with air. Note also that the plume
movement is affected by the speed of the wind.
Although a footprint represents the area envel-
oped by a plume, it is not possible to predict
with any high degree of accuracy the wind direc-
tion and wind speed. Therefore the direction and
shape which the plume may take at the time of
an accidental release is not known in advance.
12/87
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Exhibit 2-6
The Effect of Different Assumptions on the Calculation
of the Radius of Estimated Vulnerable Zones
/ /Y
(2) / (4)
1 Smaller I Selection of
amount and ! higher level
rate of release I of concern
\
\
\ \ \ \
\ \ \
\ \ \
\ \ \
v \ \
\ \ \
Release Site
\ \
N \
, \ \
\ \
\ \
> » \
X ' \
(3) I
Use of greater j
wind speed and I
less atomsphenc ,
/ stability *
/ / /
\
\
V
\
(D
Radius for
initial
screening
zone
/
i
/
\
/
Diagram not drawn to scale.
The effect of altering major assumptions on the downwind distance (radius) of the estimated
vulnerable zone. Calculations made using (1) credible worst case assumptions for initial
screening zone (2) reevaluation and adjustment of quantity released and/or rate of release of
chemical (3) reevaluation and adjustment of wind speed (increase) and air stability (decrease)
(4) selection of a higher level of concern. Note that adjustment of two or more variables can
have an additive effect on reducing the size of the estimated vulnerable zone.
Note also that the relative sizes of the altered zones are not to scale (e.g., choosing a higher
value for the level of concern does not always result in a smaller zone than the use of greater
wind speed and less atmospheric stability.
12/87
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Exhibit 2-7
Vulnerable Zones for Five Facilities
in a Hypothetical Community
Wind rosette indicates % of time
wind typically blows in that direction
Estimated initial screening zones based on credible worst case
assumptions
Changes in assumptions for meteorological conditions more
characteristic of a specific community
Changes in other initial screening assumptions (variables) based or
reevaluation of assumptions and conditions
12/87
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Exhibit 2-8
Plume Development and Movement during
a Hypothetical Accidental Release
School
W«*r
SH» 'Rum*
Time: 1 minute after Release
School
W*t*f
Sit* ' Plum*
Time: 5 minutes after Release
School
* Plum*
Time: 10 minutes after Release
Q
£m*ro*iicy
R**poni*
Center
Time: 20 minutes after Release
Time: 40 minutes after Release
a
Si,, Plum*
Time: 60 minutes after Release
\ penmeter of the estimated zone beyond which the airborne concentration of the chemical is below
\ the level of concern
Note: As the plume dissipates, the gas becomes less concentrated. The shading of the plume
indicates its concentration: the darker the plume, the more concentrated the gas is. This
plume represents a neutrally buoyant gas with constant wind speed and direction. Release
duration is 45 minutes.
Note also, that although the plume moves beyond the penmeter of the estimated vulnerable
zone, the concentration of the chemical in the air is below the level of concern at that
distance and beyond.
12/87
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Further, both wind speed and direction may
change during the course of the release. Be-
cause of this, it is suggested that planners use a
circle for fixed sites or a corridor for transporta-
tion routes when estimating vulnerable zones.
2.2.4 Application of Estimated Vulnerable
Zones to Hazards Analysis for Ex-
tremely Hazardous Substances
This section provides an overview of how vulner-
able zones can be estimated as part of a haz-
ards analysis. To estimate the zone, specific
values must be assigned to each of the variables
discussed in the previous sections. Values may
be obtained from the reporting facilities, from
techniques contained in this document, or other
sources recommended in this guide. In several
instances, this guide provides liquid factors
which replace a series of calculations. These
factors are intended to make the process of es-
timating the vulnerable zones much easier for
local emergency planning committees (LEPCs) .
The step-by-step hazards analysis described in
Chapter 3 of this guidance is divided into two
major phases. The first phase involves a
screening of all reporting facilities to set priori-
ties among facilities so that more detailed haz-
ards analysis can be conducted for those facili-
ties that pose the greatest risk should a release
occur. The first phase employs assumptions for
a credible worst case scenario. The second
phase involves the reevaluation of the facilities
by priority. During this phase the LEPCs have
the opportunity to reevaluate the assumptions
used in the screening phase on a case by case
basis using data that may be unique to a particu-
lar site.
Estimating Vulnerable Zones for Initial
Screening
Because of time and resource limitations, local
planners may not be able to evaluate all report-
ing facilities at the same time or to the same
extent. Thus planners should set an order of pri-
ority among potential hazards for all facilities
that have reported the presence of one or more
EHSs in excess of the TPQ. One way to do this
is to estimate a vulnerable zone radius using as-
sumptions for a credible worst case scenario.
Values that reflect these assumptions are as-
signed to all the variables discussed in Section
2.2.2. In this way, all facilities and substances
are similarly evaluated to establish a relative
measure of potential hazard for purposes of
prioritization.
The initial estimated screening zones are based
on the following credible worst case assump-
tions.
Quantity released: maximum quantity that
could be released from largest vessel or
interconnected vessels.
Rate of release to air: total quantity of
gas, solid as a powder, or solid in solution
is assumed to be released in 10 minutes;
for liquids and molten solids, the rate is
based on the rate of evaporation (rate of
voltization). As explained in Appendix G
this guidance simplifies the calculation of
the rate of evaporation with a liquid factor
which approximates, a series of calcula-
tions. This number is called liquid factor
ambient (LFA), liquid factor boiling (LFB),
or liquid factor molten (LFM) depending
on the handling conditions of the EHS.
Temperature: not applicable to gases or
solids as powders or in solution; for liq-
uids, dependent on whether they are used
at ambient temperature or near their boil-
ing points: for molten solids, at their melt-
ing point.
Meteorological conditions: wind speed of
1.5 meters per second (3.4 miles per
hour) ; F atmospheric stability.
Topographic conditions: flat, level, unob-
structed terrain: use of the dispersion
model for rural areas.
LOG: one-tenth of the (NIOSH) published
(IDLH) value or one-tenth of its approxi-
mation. * (See Appendix D for a discus-
sion of LOG.)
Provided it is not exceeded by the ACGIH TLV. In this case, the TLV is used.
12/87
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As a result, the only information necessary to
estimate the vulnerable zone for initial screening
is:
Chemical identity:
Maximum potential quantity in a single
vessel or interconnected vessels (ob-
tained from the facility);
Location of vessel and facility (obtained
from the facility);
LOG (found in Appendix C); and
In instances of confidentiality claims, the
approximate LOG as defined in this guid-
ance, physical state, and approximate va-
por pressure of a liquid or molten solid
(obtained from the facility).
Planners can use the estimated zone, together
with an initial consideration of population and es-
sential service facilities within this zone and any
readily available information on the likelihood of
a release to establish an order of priority among
the facilities. The considerations of population
and critical services are discussed in Section 2.3
of this chapter.
Reevaluation of the Estimated Zones
Once the prioritization of facilities is completed,
the LEPCs should begin a systematic reevalua-
tion of those facilities which initially appear to
represent the greatest potential hazards. This
will require careful review of the considerations
presented in Chapters 2 and 3 and Appendices
G and I in this document, consultation with facil-
ity officials, and perhaps the aid of experts in the
appropriate technical areas. After careful evalu-
ation of new data, planners may wish to alter
certain values and assumptions such as:
Quantity likely to be released (use infor-
mation from facility);
Likely rate of release to air (obtain infor-
mation from facility or other sources);
Meteorological conditions (obtain informa-
tion from facility, local, State, or regional
experts, or other sources);
Topographical considerations (e.g., urban
versus rural landscape); and
Values used for the LOG.
Reevaluation of the screening zones based on
"credible worst case" assumptions used for
screening purposes should be performed with
utmost care and prudence. Although some
changes in estimated or assumed values may
increase the size of the estimated vulnerable
zone, in many instances the zone will be re-
duced by such changes. Exhibit 2-9 provides a
summary table of how the principal variables af-
fect the estimated zone. For example, discus-
sions with a facility representative may indicate
that in one particular operation, vessels are
rarely filled to maximum capacity or that equip-
ment is engineered or designed to minimize or
contain accidental releases. Chemicals may be
subjected to higher temperatures or pressures
than was originally assumed. Meteorological
data may show that the worst-case conditions
prevail for only a small percentage of the time or
that they prevail for a large percentage of the
time. The use of one-tenth of the IDLH or an
approximation of this value as the LOG may or
may not be considered overly protective for lo-
cal circumstances. Local planners may favor
the use of another value as an appropriate
guideline for an LOG.
Decisions to alter the values or assumptions that
affect the size of the estimated vulnerable zone
involve a consideration of acceptable risk and
are a matter of judgement at the local level.
There is no guidance available that can provide
values that would ensure no risk or that can pro-
vide an acceptable balance between risk and the
appropriate level of planning for each district.
This decision rests with local officials.
It is possible that reevaluation of the screening
zones may lead to the estimation of several vul-
nerable zones as shown in Exhibit 2-7. Planners
must then carefully consider the populations and
essential services at risk, both within and outside
these zones and reach conclusions on the level
and type of planning they believe is necessary.
Section 2.3 provides information on analyzing
the risk associated with releases of EHSs to
populations and essential services facilities
within the planning district.
2.2.5 Evacuation Considerations for Airborne
Releases of Extremely Hazardous Sub-
stances
Decisions about whether or not to evacuate as
well as about evacuation distances are incident-
specific and must be made at the time of an ac-
12/87
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EXHIBIT 2-9
FACTORS AFFECTING VULNERABLE ZONE ESTIMATIONS
IF
IT WILL CAUSE
RESULTING IN
the quantity on site
that might be involved in
an accident is reduced
the time period of
release of a given
quantity increases
the release source point
is above ground level
the terrain considered
is rough (uneven and
mountainous) instead of
flat
the area is urban,
containing high buildings
and other man-made
structures
a higher value
for LOG is chosen
a lower value for
LOG is chosen
a reduction in the
total airborne quantity
and the quantity released
per minute
a reduction in the
airborne quantity
released per minute
an increase in dispersion
(mixing and diluting of the
chemical in air)
an increase in dispersion
(mixing and diluting of
the chemical in the air)
an increase in dispersion
(mixing and diluting of
the chemical in the air)
smaller estimated zones
smaller estimated zones
smaller estimated zones
(possibly)
smaller estimated zones
smaller estimated zones
a reduction in the geographical smaller estimated zones
area with airborne concentrations
above the LOG
an increase in the geographical larger estimated zones
area with airborne concentrations
above the LOG
12/87
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tual release. An estimated vulnerable zone
should not automatically be used as the basis for
evacuation during an incident response. For ex-
ample, the following variable factors are always
part of an evacuation decision: wind speed and
direction, temperature, humidity, air dispersion
conditions, and time of day. In addition, the vul-
nerable zone is described as a circle or a corri-
dor surrounding the possible incident site and
provides no information on the breadth of a po-
tential plume. An evacuation zone is typically a
pathway through which a plume might move
from the point of release. The vulnerable zone
is helpful because it identifies an area about
which evacuation decisions might need to be
made, but the evacuation zone will always de-
pend on other factors.
Evacuation during incidents involving the air-
borne release of acutely toxic chemicals is
sometimes , but by no means always ,
necessary. Release of airborne toxics can occur
and move downwind so rapidly that there would
be no time to evacuate residents. For short-
term releases, the most prudent course of ac-
tion for the protection of the nearby residents
would often be to remain indoors with the doors
and windows closed and the heating and air con-
ditioning systems shut off. An airborne cloud will
frequently move quickly past. Vulnerable popu-
lations, such as the elderly and sick, may suffer
more injury by being evacuated than by staying
inside and putting simple countermeasures into
effect. If the releases occur over an hour or
more, or if there is a fire that cannot be readily
controlled within a short time, then evacuation
may be a sensible alternative.
The disadvantages of evacuation in incidents in-
volving airborne releases of EHSs are numerous.
Two have already been alluded to, namely that
events occur so rapidly that there may be no
time to evacuate and that vulnerable populations
would sustain fewer adverse effects by remain-
ing inside until the toxic cloud has passed.
Slight changes in wind velocity and direction
could be very important if evacuation were be-
gun during a release of airborne toxic chemicals:
differences in temperature between air layers
could also cause the toxic cloud to disperse in
ways that would be hard to predict. It would be
difficult to estimate how long a community would
be exposed to a toxic cloud.
The estimated vulnerable zone for a potential
airborne release of a specific quantity of EHS
represents the area surrounding the potential re-
lease site within which vulnerable populations
and facilities might be affected. It does not re-
flect the time frame of the impact of an acci-
dent. It also does not mean that just beyond the
zone boundary residents are safe. The many
assumptions made in the calculations for the
vulnerable zones and the fact that no safe levels
for any of the chemicals on the list of EHSs have
been established for the general population,
make it inappropriate to base evacuation solely
on these estimates. If the estimated vulnerable
zone is greater than planners can cope with, the
community should work closely with the facility
to discuss the possibility of reducing the risk of
exposure. This could be achieved by reducing
inventories, establishing controls or alarms to
make sure no release occurs, and by installing
early warning systems. A more detailed discus-
sion of evacuation is given in Appendix H.
12/87
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2.3 Risk Analysis
K
lazards Identification
Chemical Identity
Location
Quantity
Nature of
the Hazard
Vulnerability Analysis
Vulnerable Zone
Human Populations
Critical Facilities
Environment
Risk Analysis
Likelihood of a
Release Occurring
Severity of the
Consequences
Risk analysis is the third part of the hazards
analysis process. Risk analysis can provide a
relative measure of the likelihood and severity of
various possible hazardous events and enable
the emergency plan to focus on the greatest po-
tential risks. Risk analysis requires certain infor-
mation collected during the first two steps of the
hazards analysis (hazards identification and vul-
nerability analysis), as well as other information
specific to the facility or the local area. The ap-
propriate level of detail and scope of the risk
analysis must be determined based on the local
situation and the resources available. This guide
is meant primarily to assist local emergency
planning committees (LEPCs) in carrying out a
relatively quick and inexpensive risk analysis.
LEPCs with access to the necessary resources
may wish to conduct a detailed quantitative risk
analysis. However, a risk analysis of this type is
beyond the scope of the guidance presented
here and it is recommended that committees
seek other guidance and expert advice for con-
ducting quantitative risk assessments. A quanti-
tative risk assessment is not deemed essential
to performing a hazards analysis suitable for
emergency response planning in most cases.
The real value of risk analysis derives from the
fact that it gives planners an ability to put each
potential situation into perspective (in terms of
the probability that it will occur and the resulting
effects it will have) and results in emergency
plans that will address the most likely and most
severe potential hazards.
2.3.1 Overall Approach to Risk Analysis:
Ranking of Hazards
Because available safeguards such as contain-
ment, controlled flow, and proper venting may
greatly reduce the opportunity for, or extent of,
exposure, the mere presence of a hazardous
chemical is insufficient to identify the level of risk
involved. Whenever a hazard exists, however,
there is always some risk, however small it
might be.
Risk analysis includes an estimate of the prob-
ability or likelihood that an event will occur. Risk
can be characterized in qualitative terms as
high, medium, or low, or in quantitative terms
using numerical estimates and statistical calcu-
lations. For practical purposes, a risk analysis
may be based on a subjective, common-sense
evaluation. Few people live in daily fear of being
struck by a meteorite. They know that, although
the risk exists, it is very small because the prob-
ability is low. A busy street corner, known to be
the site of frequent auto accidents, could be
considered to present a high risk of accidents.
Citizens know that the likelihood of being struck
by an automobile is much greater and requires
safeguards (e.g., looking both ways before
crossing a street). In both of these situations,
the evaluation of the probability of a future inci-
dent is based on knowledge of the frequency
with which that incident has occurred in the
past. Historical records of past events can,
therefore, be put into practical use in risk analy-
sis.
12/87
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Both probability and consequences are ex-
tremely important in evaluating risk. A high risk
situation can be the result of a high probability
with severe consequences (e.g., irreversible
health effects or death due to an airborne toxic
chemical, a fire or explosion with injuries or fa-
talities) , whereas moderate risk situations can
be a result of either high probability with mild
consequences or low probability with more se-
vere consequences. Diminishing the likelihood
of an accident or minimizing the consequences
will reduce risk overall.
A relative ranking of hazards for the purposes of
community emergency planning does not re-
quire extensive mathematical evaluations, appli-
cation of statistics, or extensive support from
experts. Application of readily available informa-
tion and common sense, when combined with
site-specific evaluations such as the vulnerabil-
ity analysis, will complete much of the risk analy-
sis process. Because it is based on the knowl-
edge, experience, local considerations, and the
priorities of the people in the planning district or
community involved, there is no universal right
answer in risk analysis.
2.3.2 Types of Information Required for Risk
Analysis
Much of the information concerning sources of
hazard, populations, and essential services sub-
ject to damage should have been assembled
during the screening portion of the hazards iden-
tification and vulnerability analysis. Risk analysis
will also require information on facility and com-
munity plans and safeguards, existing local re-
sponse capabilities in place, and an historical re-
cord of past incidents and their outcomes.
Planners who have used the screening method-
ology to estimate vulnerable zones as described
in Section 2.2 of this chapter and in Chapter 3
will then need additional information about prior-
ity facilities for which they will develop plans first.
The process described in this section is itera-
tive: (1) Planners gather additional information
about high priority facilities first; (2) Planners
then reevaluate and rank the risks associated
with highest priority sites (and make emergency
plans accordingly); (3) Planners then return to
the original list of facilities that were assigned a
lower priority during the screening and repeat
the process until all reporting facilities have been
reevaluated. Following the reevaluation of all fa-
cilities, appropriate emergency plans should be
developed.
Facility Information
Facilities are an important source of information
about risk. They are required under Title III of
SARA to provide both chemical inventory and re-
lease information to LEPCs. Information required
under Section 304 about spills or releases that
have occurred will be useful for this phase of
hazards analysis. Certain State and local gov-
ernments have additional community-right-to-
know regulations and spill reporting require-
ments with which facilities must also comply.
Thus industries can and should be approached
with questions regarding the hazards and safe-
guards present at their facilities. Interaction with
facilities should be based on cooperation, re-
spect for trade secrets and other confidential
business information, and recognition of the in-
dustry as a member of the community. Facili-
ties should be aware of the importance of cer-
tain information (e.g., the results of a facility risk
assessment) and should cooperate in providing
as much pertinent information as possible. Spe-
cific types of information concerning extremely
hazardous substances (EHSs) that LEPCs may
want to request from facilities include:
Anticipated adverse health effects of a
substance and their degree of severity:
Safeguards in place on-site:
Recommendations made by facilities for
community safeguards:
Prevention approaches used for past
events in which adverse health effects
were prevented, and details of the events:
Lessons learned from past events in which
adverse health effects occurred, and de-
tails of the events:
Hazards evaluations conducted by the fa-
cility (e.g., HAZOP; see Appendix J).
In addition to the information and recommenda-
tions which they will provide, facilities may be
willing to contribute resources to assist in emer-
gency response management including:
Assistance in planning and response by
facility technical experts:
12/87
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Copies of facility emergency response
plans and spill prevention control and
countermeasures (SPCC) plans (see Ap-
pendix I);
Assistance in cleanup and recycling of
spilled materials: and
Training and safe handling instructions.
Community Plan and Safeguard Information
Many communities will already have in place one
or more emergency response plans developed
to address a variety of hazards. Such plans may
require revision to include recent new regula-
tions and perhaps may be incomplete in ad-
dressing acutely toxic airborne releases, but will
provide a valuable starting point for additional
planning. Specific types of plans which may al-
ready exist include:
Local multi-hazard emergency operations
plans (EOPs) (developed under Federal
Emergency Management Agency (FEMA)
guidance);
Emergency plans for transportation-re-
lated hazards (developed under Depart-
ment of Transportation (DOT) guidance);
Community Awareness and Emergency
Response (CAER) plans (developed by
the Chemical Manufacturers Association
(CMA) ); and
The SPCC plans of individual facilities.
Historical Accident Records
There are two benefits to the review of historical
records of hazardous materials incidents in risk
analysis. First, an analysis of the sites and ma-
terials involved in prior accidents will indicate
hazards that may represent significant risks. Al-
though no two accidents will be identical, certain
situations, if unaltered, can precipitate other
more severe incidents. A second benefit is the
development of an ability to recognize and as-
sess potential risks which would not be apparent
to an untrained evaluator. The development of
an appreciation for what could happen can be
achieved through a review of what has hap-
pened in the past. To assist in increasing the
overall awareness of the nature and complexity
of hazardous incidents, Exhibit 2-10 includes
brief summaries of some accidents that oc-
curred during 1980 and 1981 throughout the
world. The Acute Hazardous Events Data Base
prepared for the EPA Office of Toxic Substances
(December 1985) has information on the chemi-
cals involved in accidents that posed high risks
to human health. The historical record of local
hazardous incidents may be more valuable in
identifying possible hazards in each district. Fa-
cility compliance with Section 304 of Title III of
SARA will provide this type of information in the
future.
An historical record of local hazardous materials
incidents should include information from the fol-
lowing organizations:
Fire department and rescue squad:
Police department:
Public health department:
Local hospitals and physicians:
Local chemical cleanup and spill response
companies;
Universities (chemistry, chemical engi-
neering, and science laboratory safety
personnel);
Local industry: and
News media (print and broadcast).
When accumulating records of past incidents,
information concerning the responsible parties
will not be essential to the risk analysis process.
Many of the information sources listed above
may be more willing to provide the needed data
(e.g., date, time, location, material, extent of
incident, injuries sustained, remedial actions
taken, safeguards implemented) if they are as-
sured that blame will not be assigned in the
process.
Changing Factors Affecting Future Incidents
The historical record of incidents will contain
valuable information. However, to properly ap-
ply such data to the risk analysis process re-
quires that any changes which have occurred be
taken into account. For example, the assem-
bled historical record may contain several acci-
dents involving the release of hazardous materi-
als at a particular site. If the engineering con-
trols, containment facilities or processes used
are altered over time, the results of the risk
analysis may be substantially different from what
the historical record might predict. Any evalu-
ation of past accidents must take into account
any changes in the following:
12/87
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Exhibit 2-10
SUMMARIES OF SOME ACCIDENTS THAT OCCURRED IN 1980-81
Location
1. Mexico
2. California
3. Kentucky
4. Florida
5. Idaho
6. Washington
7. Michigan
Date Incident
1980 Line rupture caused spill
of liquid ammonia being
pumped from a rail tank
car to tank trucks at a
loading rack.
1981 Pallets in a department
store were tipped over and
chlorine and ammonia
became mixed.
1980 Fire in 6 of 10 derailed
tank cars. The cars
contained vinyl chloride,
chlorine, acrylonitrile,
and toluene. 3000 foot
column of toxic smoke
resulted.
1981 Vandalism at a swimming
pool company resulted in a
leak of chlorine and of
muriatic acid.
1980 Fire at a chemical plant
resulted in airborne toxic
fumes from pesticides and
herbicides.
1980 Nitric acid vapor released
during transfer from a
holding tank to a tank
truck at an aircraft plant.
Fumes drawn through plant
via ventilation system.
1981 Valve on vat of hot phenol
formaldehyde/carbolic acid
ruptured. An acid cloud
covered one square mile
of Detroit.
Consequences
3 bus passengers, 4
motorists and 2
pedestrians killed by
vapor cloud.
10 persons attempting
to clean up showed
respiratory distress. 30
employees were evacu-
ated, 6 required treat-
ment.
Evacuation of 7500 resi-
dents.
Area was evacuated. 45
persons required hospi-
tal treatment.
700 residents evacu-
ated. 30 firefighters
treated for fume
inhalation.
800 employees evacu-
ated.
19 people treated for
burns, eye and respira-
tory problems. Dead
animals. Paint stripped
from buildings and vehi-
cles.
(Source: FEMA Interim SM-110. Analysis of Hazardous Materials Emergencies for Emergency Program
Managers: Student Manual. January 1985.)
12/87
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Surrounding populations and critical facili-
ties;
Transportation routes: and
Engineering control methods.
2.3.3 Limiting the Collection of Information
The preceding section contains some general
guidance concerning the types of information re-
quired for a risk analysis and where to obtain
such data. Appendix I contains suggestions for
more detailed questions and concerns which
may be raised during discussions to collect the
needed information. These are all tools for use
in determining what information to collect: none
of them, however, will be wholly adequate for
emergency planning needs. Community-spe-
cific checklists will have to be developed for use
in collecting information since each locality and
community has different needs, requirements,
and points of emphasis.
The suggested approach for using the tools in
this guide to aid in the development of such a
community-specific checklist is to:
1) Review Appendix I for the types of infor-
mation that appear to be needed.
2) Highlight and amend the suggestions in
Appendix I to reflect the specific needs of
your local.community or planning district.
3) Develop a detailed checklist of information
needed based on the amended (tailored)
version of Appendix I and the types of in-
formation outlined in the prior section of
this guidance.
4) Set a priority for each item of information
based on perceived need, effort involved,
and available resources.
5) Request the needed information and as-
semble it. (This process will be described
in the next section.)
It is very important to recognize when enough
information has been collected. A cursory re-
view of Appendix I, which is by no means a com-
plete set of discussion points, will demonstrate
the volume of information that can be collected
for the risk analysis. Collection of data on all
possible interactions of elements would be ex-
tremely time consuming. The complexity of the
analysis and the effort required to perform it will
depend directly on the volume of data collected.
The focus of the information collection should be
on developing a relative measure of the likeli-
hood and severity of possible hazardous events.
This goal does not demand an exhaustive collec-
tion of data. Reviewing data as they are col-
lected will greatly assist in identifying information
that is essential as opposed to that which is pe-
ripheral to the risk analysis process. If in doubt,
base decisions on whether the information:
Has the potential for altering the relative
ranking of the hazard to the community:
and
Directly involves identification of a hazard,
determination of likelihood of an incident,
assessment of outcome of an accident, or
identification of the safeguards needed or
available to reduce the magnitude of the
damage.
Anything outside these categories can be con-
sidered of secondary importance and should be
collected only if resources allow. Such limita-
tions, when properly applied to the entire infor-
mation collection process (i.e., prioritization of
the checklist before data is collected) can bene-
fit the risk analysis by eliminating unnecessary
types of information (e.g., details concerning
damage from the least likely events) before ef-
fort is expended on its collection and analysis.
2.3.4 Assembly of the Information Obtained
from the Hazards Analysis
Data that are systematically assembled as they
become available during the three major steps
of the hazards analysis can be easily evaluated
as the risk analysis progresses and can be used
to identify missing data as well as information
that is complete. As has been discussed earlier
in this chapter, a hazards analysis is first per-
formed during the screening of reporting facili-
ties using "credible worst case assumptions" for
establishing priorities among facilities. The haz-
ards analysis of each facility is then reevaluated
according to priority based on a careful reas-
sessment of the assumptions used in the
screening process. A list of these steps is
shown in Exhibit 2-11.
Information obtained during both the screening
process and the reevaluation process can be
stored in a hazards analysis matrix. The hazards
12/87
2-25
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EXHIBIT 2-11
STEPS IN HAZARDS ANALYSIS
INITIAL SCREENING
1. HAZARDS IDENTIFICATION
A. List facilities that have reported EHSs in the community in excess of the threshold plan-
ning quantity TPQ
B. Contact each facility on the list for information on the EHSs present
i. Chemical identities
ii. Quantities and location of chemicals present
iii. Properties of the chemicals if identity is trade secret
iv. Conditions under which chemicals are used, produced, processed, or stored
C. Obtain information on transportation routes of EHSs, if possible
D. Obtain information on hazardous materials, facilities, and transportation routes (other
than for those with EHSs above the TPQ) listed by SERCs (optional)
2. VULNERABILITY ANALYSIS
A. Estimate vulnerable zone for screening using credible worst case assumptions
i. Determine rate of release to air using information from the facility concerning quantity
likely to be released from a vessel or interconnected vessels and fixed assumptions
about time of release
ii. Use LOG from Appendix C
iii. Determine zone using Exhibit 3-I and fixed conditions
B. Identify characteristics of human population (e.g., number, concentration, general
health) within estimated vulnerable zone
C. Identify critical facilities within estimated vulnerable zone
3. RISK ANALYSIS
A. Collect information obtained in hazards identification and vulnerability analysis
B. Make rough estimate of risks posed by each based on readily available information on
the likelihood of a release and severity of consequences
C. Identify those facilities with higher priority due to the estimated risks they pose
12/87
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PLANNING FOR FACILITIES BY PRIORITY
4. HAZARDS IDENTIFICATION
A. Contact each facility on the list and other expert sources for additional information on
the EHSs present and what conditions might be present during a release
i. Reevaluate estimate of quantity likely to be present
ii. Reevaluate estimate of rate of release
iii. Consider typical weather and wind conditions
B. Obtain additional information on typical transportation conditions, if possible
5. VULNERABILITY ANALYSIS
A. Reestimate vulnerable zone using reevaluated assumptions gathered from conversations
with the facility and other expert sources
B. Identify characteristics of human population within estimated vulnerable zone
C. Identify critical facilities within estimated vulnerable zone
6. RISK ANALYSIS
A. Collect all information obtained in hazards identification and vulnerability analysis into a
table
B. Obtain additional information on community and facility safeguards, response
capabilities, and accident records
C. Make judgment of probability of release and severity of consequences
D. Organize all information (from A, B, and C) in a matrix format
E. Rank risks
F. Develop, or revise emergency plans for higher priority facilities
INTEGRATING HAZARDS ANALYSIS INTO THE PLAN.
See Exhibit 4-1 Emergency Planning Information Section.
12/87 2-27
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Exhibit 2-12
EXAMPLE HAZARDS ANALYSIS MATRIX FOR A HYPOTHETICAL COMMUNITY
to
OH
Hazard A
HazardB
Hazard C
K)
INITIAL SCREENING
1. HAZARDS IDENTIFICATION
(Major Hazards)
a. Chemical
b. Location
c. Quantity
d. Properties
2. VULNERABILITY ANALYSIS
a. Vulnerable zone*
b. Population within
vulnerable zone
c. Essential services
within zone
3. RISK ANALYSIS
(Initial Evaluation of
Reporting Facilities--
Relative Hazards)
Chlorine
Water treatment plant
600 bs.
Poisonous; may be fatal if inhaled.
Respiratory conditions aggravated
by exposure. Contact may cause
bums to skin and eyes. Corrosive.
Effects may be delayed.
A spill of 800 bs. of chlorine from
a storage tank could result in an
area of radius greater than 10 miles where
chlorine gas may exceed the level of
concern (LOG). This would be a
credible worst case scenario.
Approximately 600 residents of a
nursing home; workers at a small
factory; 29 workers at the water-
treatment plant; urban area-400
persons/sq. mile; total population in
vulnerable zone is more than 125,000.
2 fire stations and 1 hospital
Relative to potential hazards of
other reporting facilities-high
Ammonia
Tank truck on local interstate
highway
3000 Ibs.
Poisonous; may be fatal if inhaled. Vapors
cause irritation of eyes and respiratory
tract. Liquid will burn skin and eyes.
Contact with liquid may cause frostbite.
Effects may be delayed. Although not
flammable, will bum within certain vapor
concentration limits and Jncrssa* (ire
hazard in the presence of oil or combustible
materials.
A spill of 3000 bs. of ammonia result-
ing from a collision of a tank truck could
result in an area of radius 7.6 miles
where ammonia exceeds its LOC. This
would be a credible worst case scenario.
Up to 700 persons in residences, com-
mercial establishments or vehicles near
highway interchange; seasonal influx
of visitors to forest preserve in the
fall; rural area-75 persons/sq. mile;
total population in vulnerable zone
is 13,600.
1 volunteer fire station
Medium
Liquid methyl isocyanate (MIC)
Pesticide manufacturing plant in nearby
semi-rural area
1000 Ibs.
Causes death by respiratory distress
after inhalation. Other effects would
include permanent eye damage, respira-
tory distress, and disorientation.
Explosive. Extremely flammable.
A spill of 1000 bs. of methyl isocyanate
could affect an area of radius 7.6 miles
with MIC vapors exceeding the LOC
(assuming that the liquid is hot when
spilled, the tank is not diked, and the
MIC is at 100% concentration). This
would be a credible worst case scenario.
Up to 200 workers at the plant and 1000
children in a school; rural area-85
persons/sq. mile; total population in
vulnerable zone is 15,400.
None
High
-------
Exhibit 2-12 (Continued)
Hazard A
Hazard B
Hazard C
REEVALUATION
1. HAZARDS IDENTIFICATION
a. Chemical
b. Location
c. Maximum Quantity that
could be released
d. Properties
2. VULNERABILITY ANALYSIS
a. Vulnerable Zone
b. Population within
vunerable zone
c. Essential services
3. RISK ANALYSIS
a. Likelihood of
hazard occurrence
b. Consequences it
people are exposed
c. Consequences for
property
d. Consequences of
environmental exposure
e. Summary: likelihood/
severity olconsequences
Chlorine
No change
500 fbs (decrease)
No change
Zone decreases (new radius-1.0
miles) due to smaller quantity released
and used urban ofcpereion model.
Decreases; total population In
vulnerable zone is 1250.
None
(Select facilities by priority based on initial screening)
Ammonia
No change
No change
No change
No change
No change
No change
Low-because chlorine is stored
In an area with teak detection
equipment In 24 hour service with
alarms. Protective equipment is
kept outside storage room.
High levels of chlorine gas in he
nursing home and factory could cause
death and respiratory detress. Bed-
ridden nursing home patients are
especially susceptible. High sever-
ity ol consequences. However, gas is
unikety to reach a nursing home
under reevaluated release conditions.
Possfcte superficial damage to fac-
ility equipment and structures from
corrosive fumes (repairable).
Possible destruction of surrounding
fauna and flora.
Low/High. The community would assess
this on site and incident specific basis.
High-highway interchange has a history
of accidents due to poor visfcity of
exits and entrances.
Motorists' reactions to release vapors may
cause traffic accidents. Injured and trap-
ped motorists are subject to lethal vapors
and possible incioeraSon. Windblown vapors
can cause respiratory dstess for nearby
residents and business patrons. High
severity of consequences.
Repairable damage to highway. Potential
destruction of nearby vehicles due to
fire or explosions.
Potential for fire damage to adjacent forest
preserve due to combustible material
(recoverable in the tong term).
High/High. The community would assess this
on site and incident specific basis.
Liquid methyl isocyanate (MIC)
No change
1500 bs. (increase) due to increased
production
No change
Zone increases (new radhjs-greater fan 10
miles) due to larger quantity released.
Increases; total population in vulnerable
zone Is 26,700 including 200 workers at
the plant and 1000 children In school.
1 fire station and 1 police station
Low-facility has up to date containment
fadities with leak detection equipment
and an emergency plan for its employees.
There are good security arrangements that
would deter tampering or accidents re-
sulting from CM uprisings.
If accident occurs whHe school is in
session, children could be kiBed,
blinded and/or suffer chronic deMital-
Ing respiratory problems. Plant workers
would be subnet to similar effects at
any time. High severity in school hours,
medium severity at aN other times.
Vapors may explode in a confined space
causing property damage (repairable).
Damage could result from fires (repar-
able).
Farm animals and otor fauna could be
kited or develop health effects
necessitating their destruction or
indirectly causing death.
Low/High to medium. The community would
assess this on site and incident specific
basis
-------
Exhibit 2-13
EXAMPLE QUALITATIVE DEFINITIONS OF
PROBABILITY OF OCCURRENCE
I. Low: Probability of occurrence considered unlikely during the expected lifetime of
the facility assuming normal operation and maintenance.
II. Medium: Probability of occurrence considered possible during the expected lifetime of
the facility.
III. High: Probability of occurrence considered sufficiently high to assume event will
occur at least once during the expected lifetime of the facility,
EXAMPLE DEFINITIONS OF SEVERITY OF
CONSEQUENCES TO PEOPLE
I. Low: Chemical is expected to move into the surrounding environment in negligible
concentrations. Injuries expected only for exposure over extended periods or
when individual personal health conditions create complications.
II. Medium: Chemical is expected to move into the surrounding environment in concen-
trations sufficient to cause serious injuries and/or deaths unless prompt and
effective corrective action is taken. Death and/or injuries expected only for
exposure over extended periods or when individual personal health conditions
create complications.
II,. High: Chemical is expected to move into the surrounding environment in concen-
trations sufficient to cause serious injuries and/or deaths upon exposure.
Large numbers of people expected to be affected,
12/87
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Probability
or Likelihood
of Release
Occurring
Exhibit 2-14
Risk Analysis Matrix
High
Medium
Low
Low
Medium
High
Severity of Consequences of an Accidental Release to People
These Combinations of Conclusions from Risk Analysis
Identify Situations of Major Concern
12/87
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In general, the events with likelihood-conse-
quence rankings of high-high, high-medium,
medium-high, and medium-medium will require
some additional attention and possible mitigating
measures. However, other less likely scenarios
may also have serious consequences and be of
high concern to a particular community and
would warrant the focus of emergency planning.
This initial approach to ranking hazards can en-
able the best use of the available planning re-
sources.
The planning and decision-making situations in
which risk analysis information may prove valu-
able include:
Development of a comprehensive local
emergency plan;
Updating of facility emergency response
plans:
Planning major transportation routes for
hazardous chemicals (it should be em-
phasized that the Federal Highway Admini-
stration publication FHWA-IP-80-15,
Guidelines for Applying Criteria to Desig-
nate Routes for Transporting Hazardous
Materials, should be used. This document
summarizes routing requirements at the
Federal, State, and local levels consistent
with the Hazardous Materials Transporta-
tion Act (HMTA) of 1975);
Zoning;
Providing a basis for requesting additional
emergency response resources (e.g . , fire
department vehicles equipped for hazard-
ous materials incidents); and
Developing new training materials or se-
lecting available materials.
The application of the results of a risk analysis to
the emergency planning process will be de-
scribed in detail in Chapter 4.
The summary description of the components of
hazards analysis presented in this chapter and
Appendices I and J will provide a sound basis for
understanding the next chapter of this guidance.
Chapter 3 leads planners step by step through a
hazards analysis, beginning with the initial
screening of reporting facilities to establish pri-
orities, and followed by a subsequent reevalua-
tion of the estimated vulnerable zones and haz-
ards analysis by priority of potential hazard.
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3. Step-by-Step Procedures for Conducting a
Hazards Analysis of Extremely Hazardous Substances
Introduction
Chapter 2 provided an overview of the
underlying concepts and application of the three
major steps in conducting a hazards analysis of
extremely hazardous substances (EHSs) . These
steps are hazards identification, vulnerability
analysis, and risk assessment.
This chapter provides procedures that can be
used in a stepwise fashion to actually conduct a
hazards analysis for a specific EHS as reported
by a facility under Title III of the Superfund
Amendments and Reauthorization Act of 1986
(SARA). This chapter contains only minimal
information on the background and concepts of
the hazards analysis. Effective use of these
procedures requires that all information
presented in Chapter 2 and Appendices I and J
be reviewed and understood.
General Overview
Because of time and resource limitations,
planners will likely not be able to analyze
hazards and plan in detail for all facilities
immediately. Resources should be
concentrated first on those situations that
present the greatest potential risk should an
accident occur. To accomplish this, the hazards
analysis is separated into two phases. The first
phase is the initial screening of all facilities
reporting EHSs on their premises in excess of
their threshold planning quantities (TPQs). The
initial screening is performed to establish
priorities among reporting facilities using
credible worst case assumptions. The second
phase represents a reassessment by order of
priority of the potential hazards posed by the
reporting facilities. This is accomplished
through the reevaluation of the assumptions
used for the initial screening. Both the initial
screening and the reevaluation phases utilize the
three basic steps of a hazards analysis: hazards
identification, vulnerability analysis, and risk
analysis.
3.1 Initial Screening to Set Priorities Among Sites
3.1.1 Hazards Identification
The hazards identification for initial screening is
based primarily on those facilities in the planning
district that have reported EHSs in excess of the
TPQs under Section 302, Title III of SARA.
Identification of hazards from EHSs present in
amounts lower than the TPQ and from other
hazardous substances may be undertaken but is
not mandatory under this Act.
Step 1. Prepare a list of all facilities in the
planning district that have reported EHSs
under Section 302 of Title III. Include any
additional facilities specified by the State
emergency response commission (SERC).
Step 2. Prepare a list of all EHSs at each facility
that exceed the TPQs. Chemical identity
should include chemical name and Chemical
Abstract Service (CAS) registry number.
Although it is not required under Title III of
SARA, a list of EHSs below the TPQ could
also be considered for hazards analysis.
This information can be obtained from the
facility representative.
Step 3. Using chemical name or CAS number,
find ambient physical state of substance in
Appendix C.
Step 4. Obtain from the facility representative
information concerning the total quantity
present, the average daily quantity, and
maximum quantity in a single vessel or group
of interconnected vessels for each EHS that
exceeds the TPQ.
-------
(If the EHS is a solid, these two steps (3 and 4)
should establish the quantity of solid in each of
the following forms: powdered (less than 100
microns particle diameter), molten (liquid), or in
solution .)
Step 5. Obtain from the facility representative
additional information on liquids, solids, and
mixtures or solutions:
i. For liquids: temperature of liquid in
each vessel and whether or not the
vessel is located in a diked area.
Information provided on temperature
may be specific or may be stated
generally as ambient or above/below
ambient. For purposes of this guidance,
liquids at ambient or below ambient
temperature are evaluated at ambient,
and those at temperatures greater than
ambient are evaluated at their boiling
temperature.
ii. For molten solids: whether or not each
vessel is in a diked area. Solid materials
other than those in powdered or molten
form, or in solution, may be considered
as low priority for hazards analysis.
iii. For mixtures, solutions, or solids as
powders: concentration of each EHS in a
mixture or solution, or fraction of a solid
with particle size less than 100 microns,
on a weight percent basis. The hazards
analysis will be conducted using only the
quantity of EHS present in the mixture or
solution, or the quantity of solid with
particle size less than 100 microns. (For
example, 10,000 pounds of a solution of
acrylamide in water at a concentration of
30 percent by weight represents 3,000
pounds of acrylamide for hazards
analysis.)
(NOTE: for the purposes of this guidance, the
state (solid, liquid, gas) of the EHS is assumed
to be that for which it is listed at ambient
conditions in Appendix C. The specific handling
condition may place the EHS in a different state
than listed, e.g., liquid handled as a gas. If the
EHS is handled at other than ambient conditions,
the calculations should reflect the ambient state,
as explained in this guide.)
Step 6. If facilities make confidentiality claims
for chemical identity, obtain from the facility
representative close approximations of the
level of concern (LOG) as defined in this
guidance and close approximations of the
following properties for each EHS:
i. Physical state at ambient conditions
ii. For liquids: the vapor pressure at
ambient conditions and boiling point
temperature
iii. For molten solids: the melting point
temperature and vapor pressure at the
melting point temperature
Approximation should be sufficiently close so
as not to significantly affect the size of the
estimated zones.
Step 7. If the local emergency planning
committee (LEPC) deems it necessary,
obtain information in steps 1 through 6 for
other EHSs that are present in quantities that
do not exceed the TPQ.
(NOTE: This step is not mandatory under Title III
of SAFxA, but EHSs could pose a hazard to the
community in quantities less than the TPQ.)
Step 8. Organize and record essential
information and data. A discussion on the
assembly of information is provided in
Section 2.3.4.
3.1.2 Estimate Vulnerable Zones for
Screening Purposes
For screening purposes, the vulnerable zone is
an estimate of the area potentially affected by
the release of an EHS using a set of fixed
assumptions about the release and airborne
dispersion of the substance.
Step 1. For each EHS, use the maximum
quantity of material in a vessel or group of
interconnected vessels.
For an EHS that is not in a mixture, solution,
or partially powdered solid, this quantity is
the maximum quantity that could be
released (QS). Use this value and proceed
to Step 3. To determine QS for an EHS in a
mixture or solution, or as a powder, proceed
to Step 2.
Step 2. For each EHS in a mixture, solution, or
that is partially powdered or molten,
determine the QS of EHS by multiplying the
maximum quantity of mixture, solution, or
solid in a single vessel or interconnected
vessels by the concentration and/or portion
that is molten or powdered as follows:
QS (Ibs)
3-2
-------
= Total Quantity of Mixture, Solution,
or Solid (Ibs) x Concentration
and/or portion molten or powdered
(wt%)/100
Example: A facility has 1000 pounds of a
50 percent by weight solution of ammonia
in water. The quantity of ammonia that
could be released is:
QS = 1000 pounds x 50/100
= 500 pounds
Step 3. Determine the rate (in pounds per
minute) of release of the EHS to air. Note
that the calculation of the rate at which a
substance becomes airborne is dependent
upon its physical state and the temperature
of the liquid or molten solid at the time of
release. If the physical state at ambient
temperature is a gas, continue as described
below in Section A. If the physical state is
liquid, proceed to Section B. For solids,
refer to Section C. Once the rate of release
(QR) is determined for each substance,
proceed to step 4 to determine the
vulnerable zone for each facility.
A. Gases
A-1. Determine the rate of release to air
(QR) by dividing the maximum quantity of
EHS that could be released from a vessel or
group of interconnected vessels (QS) by 10:
QR (Ibs/min) = QS (lbs)/IO minutes
Example: 2000 pounds (QS) of chlorine is
stored in a single 1 ton container.
The rate of release to air (QR) is:
QR = 2000 Ibs/IO minutes
QR = 200 Ibs per minute.
B. Liquids
B-1. If the liquid is handled only at or below
ambient conditions, use the Liquid Factor
Ambient (LFA) from the list of EHSs in
Appendix C (see Exhibit C-1 and C-2). If
the liquid is handled at temperatures greater
than ambient, use the Liquid Factor Boiling
(LFB) from the list in Appendix C. If the
chemical identity is claimed confidential and
the facility representative has provided a
close approximation of the vapor pressure
and boiling point at the handling temperature
for the confidential liquid, use Appendix G to
calculate an LFA or LFB.
B-2. If the area surrounding the vessel(s) is
not diked, go directly to B-6. If the area is
diked, determine the area bounded by the
dike in square feet (ft2).
B-3. To determine if using the diked area is
appropriate, estimate the area of the pool
that might be formed by the spilled liquid if
the area were not diked as follows:
Area of Pool (ft2 ) = QS (Ibs) x 0.49
B-4. Compare this area to the diked area.
If the estimated area of the pool is smaller
than the diked area, go to B-6 and do not
use the diked area. If the diked area is
smaller, continue to B-5.
Example: 10,000 pounds of acrolein is
stored in a tank in a diked area of 1600
square feet. The pool area is derived as
follows:
Area of Pool = 10,000 x 0.49
= 4900 ft2
Since the diked area (1600 ft2) is less than
the calculated area of the pool (4900 ft2),
use the diked area for further calculations.
B-5. Determine the Rate of Release to air
(QR) for a liquid spilled in a diked area using
the following formula:
QR (Ibs/min) = LFA or LFB x Diked
Area (ft2) x 2.8
(NOTE: the factors 2.8 and 1.4 in B-5 and
B-6, respectively, take into account the low
wind speed of 1.5 m/set (3.4 miles/hour);
see Appendix G.)
Example: 50,000 pounds of pure, hot
acrolein is spilled in a diked area of 1600
square feet. Using the liquid factor boiling
(LFB) of 0.02, the rate of release to air
(QR) is:
QR = 0.02 x 1600 ft2 x 2.8
QR = 90 Ibs/min
B-6. Determine the Rate of Release to air
(QR) for a liquid spilled in an undiked area
using this formula:
QR (Ibs/min) = QS (Ibs) x LFA or
LFB x 1.4
Example: 50,000 pounds of pure, hot
acrolein is spilled in an undiked area.
3-3
-------
Using the liquid factor boiling (LFB) of
0.02, the rate of release to air (QR) is:
QR = 50,000 Ibs x 0.02 x 1.4
QR = 1400 Ibs/min
C. Solids
C-1. If the solid is powdered (particles less
than 100 microns in diameter) or in solution,
go to C-2.
If the solid is molten, go to C-3.
If the solid is not powdered, not in solution,
nor molten, defer hazards analysis of this
chemical and begin with another chemical at
this facility, or proceed to another facility.
Solids other than in powdered, molten, or
dissolved form are less likely to become
airborne.
C-2. It is assumed that the maximum
quantity of a solid that might be released
(QS) is the quantity finely powdered or in
solution. The QR of a powder or solution of
a solid is QS divided by 10 or:
QR (Ibs/min) = QS (lbs)/IO minutes
C-3. For molten solids, find the Liquid
Factor Molten (LFM) from the list of EHSs in
Appendix C (see Exhibit C-1 or C-2). If no
LFM is available on the list, consult with
facility personnel to obtain the necessary
data to calculate the LFM as described in
Appendix G. For molten solids claimed
confidential, obtain a close approximation of
the vapor pressure and melting point
temperature from the facility representative
and calculate an LFM using the formulae in
Appendix G.
C-4. If the area around the vessel(s)
holding the molten solid is not diked,
proceed to C-6. If the area around the
vessel(s) is diked, determine if it is
appropriate to use the diked area by
comparing it to the liquid pool area as
described in steps B-3 to B-5.
C-5. Determine the QR for a molten
material in a diked area as follows:
QR (Ib/min) = LFM x Diked Area
(ft2) x 2.8
C-6. Determine the QR for a molten
material in an undiked area as follows:
QR (Ib/min) = quantity actually
molten (Ibs) x LFM x 1.4
Step 4. Select the LOG for the chemical from
the list of EHSs in Appendix C (see Exhibit
C-1 or C-2). In instances of confidentiality
claims, obtain this value or close
approximation from the reporting facility.
Step 5. Estimate the distance (radius) of the
screening zone using Exhibit 3-1 as follows:
i. Locate across the top of the table the
LOG value that most closely
approximates the LOG for the EHS in
question. If the LOG value falls halfway
between two values on the table, use the
value on the table that is smaller (to the
left).
ii. Locate the value in the left hand column
that most closely approximates the
calculated QR (Ibs/min) . If the calculated
OR is halfway between two values on the
table, use the value which is larger (lower
on the table).
iii Read across and down to the distance
given in tenths of a mile. This value is the
calculated radius of a circle
encompassing the potential release site
and represents the size (in tenths of a
mile) of the estimated vulnerable zone for
the initial screening of reporting facilities.
Example: The LOG for nitrobenzene
is 0.10 grams per cubic meter and
the estimated rate of release to air
(QR) is 15 pounds per minute. The
radius of the estimated vulnerable
zone is 0.4 miles.
Step 6. Using a local map of appropriate scale,
draw a circle to scale around the potential
release site with the potential release site as
the center and the estimated vulnerable
zone distance as the radius. This represents
the estimated vulnerable zone for initial
screening of reporting facilities.
Step 7. Identify populations and essential service
facilities that are located within the estimated
vulnerable zone.
Step 8. Record essential data. A discussion of
the assembly of information and an example
format are provided in Section 2.3.4.
3-4
-------
Worked Examples for Initial Screening
Example 1. Gas Release (Chlorine)
An 800 pound tank of chlorine, which is normally
a gas, is stored at a water treatment plant. No
other tanks are nearby and it is not
interconnected to any other storage vessels
containing chlorine. For screening purposes, it
is assumed that the total quantity in the tank can
be released, and the release will take place over
a ten minute period. Therefore,
OR = QS/IO
QR = 800 pounds/IO minutes = 80
pounds per minute.
The LOG for chlorine is 0.0073 grams per cubic
meter (g/m ) (from Exhibit C-1
Appendix C) .
or C-2 in
Locate the LOG listed along the top row of
Exhibit 3-1. The LOG of chlorine falls between
two values on the table: the lower value is used
(i.e., LOG = 0.005 g/m 3). Locate the OR (80
pounds per minute) in the left hand column.
Read across from QR = 80 and down front LOG =
0.005 to the distance. The estimated vulnerable
zone has a radius of greater than 10 miles from
the chlorine storage tank.
Example 2. Gas Release (Ammonia)
A tank truck contains 3.000 pounds of ammonia.
For screening purposes it is assumed that the
entire 3,000 pounds is released during a
ten-minute period following an accident: the
airborne quantity released per minute (QR) is
calculated as follows:
QR = 3,000 pounds110 minutes =
300 pounds per minute
The LOG for ammonia (from Exhibit C-1 or C-2
in Appendix C) is 0.035 g/m3.
Locate the LOG in the top row of Exhibit 3-I.
Locate the QR, 300 pounds per minute, in the
left-hand column. Using Exhibit 3-1 and reading
across from 300 pounds per minute and down
from 0.035 g/m3 to the intersection of the row
and column, the radius of the vulnerable zone or
the distance over which the concentration of
ammonia may reach the LOG is estimated to be
7.6 miles.
Example 3. Pure Liquid at Elevated Temperature, Undiked Area
Pure methyl isocyanate is handled in an undiked
1000 pound reactor in a pesticide plant. The
chemical is handled at warm temperatures
(39°C). The LFB from Exhibit C-1 is 0.02. The
quantity released to air per minute is calculated
as follows:
QR = QS (Ibs) x LFB x 1.4
QR = 1000 pounds x 0.02 x 1.4 = 28
pounds per minute
The LOG for methyl isocyanate is 0.0047 g/m3
(see Exhibit C-1 or C-2 in Appendix C).
Using Exhibit 3-I the radius of the vulnerable
zone is estimated. Locate the LOG in the top
row. The LOG of methyl isocyanate falls
between two values. Use the lower value,
0.0035 g/m3 . Locate the QR, 28 pounds per
minute, in the left hand column. The QR falls
between two values. Use the higher value, 30
pounds per minute. Read across from the rate
of release of 30 pounds per minute and down
from the LOG of 0.0035 g/m3 to find the
distance. The vulnerable zone distance is
estimated to be 7.6 miles.
3-5
-------
(Note that for methyl isocyanate, there is a
possibility that a runaway polymerization
reaction could produce very high temperatures
and pressures in the reactor. In this case, a
large fraction of the chemical would become a
solid and stay in the reactor while the remainder
would be quickly released to the atmosphere as
a gas.)
Example 4. Liquid at Ambient Temperature in Mixture or Solution in an Undiked Area
Acrolein in a 50 percent solution by weight, at
ambient temperature, is stored in an undiked
50,000 pound tank. The LFA from Exhibit C-l is
0.007. The airborne quantity released per unit
time to air is calculated as follows:
OS = 50,000 pounds x 50/100
QS = 25,000 pounds
QR = 25,000 pounds x 0.007 x 1.4
QR = 245 pounds per minute
The LOG for acrolein is 0.0011 g/m 3 (see
Exhibit C-1 or C-2 in Appendix C) . The distance
over which the concentration of acrolein in air
may reach the LOG is estimated from Exhibit
3-1. Read across from 250 pounds per minute,
and down from the LOG of 0.0007 to the
distance. The vulnerable zone radius is
estimated to be greater than 10 miles. (10
miles is the maximum radius that can be
estimated by this method.)
Locate the LOG in the top row. The closest
value lower than 0.0011 is 0.001. Locate the QR
in the left hand column. The closest value
higher than 245 pounds per minute is 250.
Example 5. Liquid in Diked Area
About 50,000 pounds of pure, hot acrolein is
stored in a reactor. Since the liquid is hot, the
LFB from Exhibit C-1, 0.02, is used in the
calculation of the quantity released. The area
around the reactor is diked and it is 40 feet
square (1,600 ft2).
Check this against the area of the pool
generated by the reactor contents:
Area of pool = QS x 0.49 = 50,000 x
0.49 = 24,500 ft2
Since the diked area is smaller the OR is:
QR (Ibslmin) = LFB x diked area
(ft2) x 2.8
QR = 0.02 x 1600 x 2.8 = 90
pounds per minute
Using Exhibit 3-1 locate the LOG of 0.0011 g/m3
for acrolein in the top row. The closest value
lower than 0.0011 is 0.001. Locate the release
rate of 90 pounds per minute in the left hand
column. Read across from 90 pounds per
minute and down from 0.001 g/m3 to find the
distance. The distance over which the airborne
concentration of acrolein could exceed the LOG
(i.e., the radius of the estimated vulnerable
zone) is estimated to be greater than 10 miles.
Example 6. Finely Powdered Solid
A site has 10,000 pounds of acrylamide stored
in a large bin. About 20 percent of it has a
particle size less than 100 microns. The
maximum quantity that could be released (QS)
is:
OS = 10,000 Ibs x 20/100 = 2,000
Ibs.
The rate of release to air is:
QR = OS/IO minutes = 2,000/10
= 200 Ibs per minute
The LOG for acrylamide is 0.11 g/m 3 (see
Exhibit C-1 or C-2 in Appendix C). Exhibit 3-1 is
used to determine the distance over which the
3-6
-------
concentration of acrylamide in air may reach the
LOG . Locate the LOG in the top row. The
closest value lower than 0.11 is 0.1 g/m 3
Locate the QR in the left hand column. Reading
across from the OR of 200 pounds per minute
and down from the LQC of 0.1 g/m 3, the
distance is estimated to be 2.1 miles.
3.1.3 Risk Analysis for Initial Screening of
Reporting Facilities
For purposes of initial screening, the risk
analysis is limited to a very rough estimate of the
likelihood or probability of an incident and the
severity of consequences to humans.
Step 1. Evaluate populations at risk in the
estimated vulnerable zone. This should
include estimated number of individuals,
types of populations such as elderly,
children, infirm, incarcerated, residents, and
transients such as daily workers, audiences,
and spectators.
Step 2. Evaluate critical facilities at risk in the
estimated vulnerable zone. This should
include hospitals or other health care
facilities, fire and police stations, other
emergency response facilities, and
communications facilities.
Step 3. Establish a relative ranking system for
the potential consequences posed by
hazards from reporting facilities. This may
be qualitative such as high, medium, or low,
or may be a simple numerical system. For
further information, see Section 2.3.1.
Step 4. If available, use known historical
information about incidents in the area,
estimate the likelihood of a release.
(NOTE: for most hazards, the probability of
occurrence will be assumed to be the same.)
Step 5. Record the judgements made in steps 3
and 4.
3.2 Reevaluation; Planning for Facilities by Priority
The reevaluation process provides the
opportunity to analyze further the potential
hazards of reporting facilities by order of priority.
This effort is characterized by the stepwise
reevaluation of certain of the credible worst case
assumptions used to estimate vulnerable zones
during the initial screening process. It is
important to emphasize that changes in
assumptions resulting in a reduction in size of
the zone should be considered with extreme
care and prudence. Less conservative
assumptions will decrease the estimated zone.
In the event of a release under less favorable
conditions, a greater area and perhaps a greater
population may be affected.
3.2.1 Hazards Identification
Step 1. Review the priority list of reporting
facilities developed during the initial
screening process and, starting with the
highest priority facilities, begin reevaluation
of assumptions that were used to estimate
the credible worst case vulnerable zones.
Step 2. List potential hazards other than those
associated with acute lethality. (This step is
not mandatory.)
3.2.2 Reevaluation of the Vulnerable Zones
step 1. Reevaluate the assumptions used to
estimate the quantity of EHS likely to be
released from a vessel or vessels. Planners
should seek advice from appropriate experts
including representatives of the facility.
Estimates by the facility or other sources of
the total quantity of EHS that could be
released from a vessel and supporting
rationale should be reviewed carefully.
These may include revised estimates of the
quantity of a liquid likely to be spilled based
on actual quantities present or processed
and the capabilities to mitigate a release.
step 2. Reevaluate the assumptions used to
estimate the rate at which the EHS becomes
3-7
-------
have calculations or data on the actual
amount of substance that could be released
when solids are molten, in solution, in
powdered form, or vaporized. If there is no
way for powders or solutions to become
airborne due to explosions or problems with
pneumatic systems, release of the
substance beyond the boundaries of the
facility is not likely. This information should
be included in the risk analysis (below).
Similarly, molten solids may "freeze" upon
contact with air at ambient temperatures and
may not evaporate, or conditions may differ
from those used to calculate the LFM.
Obtain appropriate input from facility
representatives and calculate a new LFM or
use other data from the facility or other
sources to estimate the rate at which the
solid becomes airborne. As for liquids, the
rate at which a molten solid evaporates from
the pool depends upon the wind speed at
the time of release. Consult Appendix G to
calculate a factor to account for wind in the
calculation of the rate of release to air of a
molten solid.
Once more realistic site-specific information
has been collected and reevaluated
regarding the release rate to air of gases,
liquids, and solids, be sure to record the
new data and the justification for changes.
Then proceed to the next step (Step 3) in
the reevaluation of the vulnerable zones.
Step 3. Determine if the area around the facility
is predominately rural or urban, as follows:
If more than 50% of the land within a mile
(1.6 km) radius is used as:
1. Heavy industrial (large chemical, other
manufacturing facilities, 3-5 story
buildings, flat roofs, grass and trees
extremely rare), or
2. Light to moderate industrial (rail yards,
truck depots, warehouses, industrial
parks, minor fabrication, I-3 story
buildings, flat roofs, limited grass and
trees), or
3. Commercial (office and apartments,
hotels, 10 story heights, flat roofs, limited
grass and trees), or
4. Compact residential (single and some
multiple family dwellings closely spaced,
2 story or less, alleys, pitched or flat
roofs, limited lawns and few old
established shade trees, no driveways),
then the area should be classified as urban.
Otherwise use rural conditions. Select
appropriate tables for use under Step 4.
Guidance may be sought from appropriate
experts.
Step 4. Consider the principal meteorological
conditions of wind speed and atmospheric
stability. Consult local, State, or regional
sources for information on frequency
distributions of wind speed, direction, and
atmospheric stability.
This guidance provides tables for four
different conditions (NOTE: Exhibits for
Chapter 3 are at the end of the Chapter):
a. The worst case conditions of rural
topography, moderately stable
atmospheric conditions (F stability) and
low wind speed of 1.5 meters per
second (3.4 mph) (Exhibit 3-1);
b. Urban area, low wind speed of 1.5
meters per second (3.4 mph), and
moderately stable atmospheric
conditions (F stability) predominate
(Exhibit 3-2) ;
c . Rural area, moderate wind speed of 5.2
meters per second (about 12 mph), and
less stable atmospheric conditions (D
stability) (Exhibit 3-3); and
d. Urban area, moderate wind speed of 5.2
meters per second (about 12 mph), and
less stable atmospheric conditions (D
stability) (Exhibit 3-4).
Step 5. Evaluate the effect of varying wind
speed and atmospheric stability on the
estimated vulnerable zone by using Exhibits
3-3 and 3-4 (wind speed of 5.2 meters per
second (12 mph) and D stability). For
evaluation of other wind speeds and
stabilities, refer to instructions in Appendix
G. Decide to retain or change values for
wind speed and stability and record final
decision. If values for the assumptions used
are not found in this guidance, consult
experts including representatives of the
facility.
Step 6. Consider the value of the LOG used to
estimate the vulnerable zone during the
initial screening process. The one-tenth of
the National Institute for Occupational Safety
and Health (NIOSH) Immediately Dangerous
to Life or Health (IDLH) value or its
approximation represents a credible worst
case exposure level. Other exposure
guidelines may be obtained from Appendix
3-9
-------
D, from the facility in question, or from
appropriate experts.
step 7. Evaluate the effect of changing the
value of the LOG on the estimated zone and
its impact on the risk analysis. After careful
consideration of the impact on the risk
analysis, retain or change the value of the
LOG and record it.
Step 8. Using all revised data and assumptions,
estimate new vulnerable zones and decide
whether to utilize the reevaluated zones in
the risk analysis process. This may be an
iterative process.
3.2.3 Risk Analysis
The risk analysis performed during the
reevaluation process includes an assessment of
the likelihood as well as the severity of an
accidental release. This relative risk analysis is
qualitative in nature, although LEPCs have the
option to develop a relative ranking on a
numerical basis.
step 1. Based on information obtained from
Chapter 2 and Appendices I and J of this
guide, the facility representative, historical
records, and appropriate experts, carefully
evaluate the likelihood (probability) that an
accidental release of a particular EHS will
occur and not be contained or mitigated.
Step 2. Assign a high, medium, or low ranking
for the probability in Step 1 and record the
decision as discussed in Section 2.3.
Step 3. Using the reevaluated vulnerable zones,
again evaluate populations at risk. This
should include an estimated number of
individuals, as well as types of populations
such as elderly, children, infirm, and
incarcerated. The evaluation should also
consider transient populations (e.g., daily
workers, audiences, and spectators),
Step 4. Evaluate critical facilities at risk within
the reevaluated zone. This should include
hospitals or other health care facilities, fire
and police stations, other emergency
response facilities, and communications
facilities.
Step 5. Based on Steps 3 and 4, establish a
relative ranking system, for the severity of
consequences to humans associated with
potential hazards posed by reporting
facilities. This may be simply qualitative
(high, medium, low) as discussed in Section
2.3, or it may be a simple numerical
system.
Step 6. Using Steps 2 and 5, establish an
overall relative risk for each facility, and
record the relative rankings of facilities (see
Section 2.3.1). This completes the hazards
analysis as presented in this guidance
document, This information can also be
used for the development of site-specific
release scenarios for training exercises and
for refining response plans.
3-10
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Exhibit 3-1
VULNERABLE ZONE DISTANCES FOR RATES OF RELEASE AND LEVEL OF CONCERN
SCREENING - Rural, F Atmospheric Stability, Low Wind Speed (3.4 miles per hour), Distances are Given in Miles
For Quantities of Release up to 10,000 pounds/minute
OR
Rate of
Release
(#/min)
1
2
3
4
5
8
10
15
20
25
30
35
40
45
50
60
70
80
90
100
120
140
160
180
200
250
300
350
400
450
500
(For LOC
0.0001
9.0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Levels of
less than this, assume 10 mile distance)
0 . 0004 0 . 0007 0 . 001 0 . 002 0 . 0035 0.005 0 . 0075
2.5 1.7 1.3 0.9 0.6
4.5 2.8 2.1 1.3 0.9
6.7 3.9 2.9 1.7 1.2
9.0 5.1 3.7 2.1 1.5
* 6.3 4.5 2.5 1.7
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
7.1 3.7 2.4
9.0 4.5 2.8
* 6.7 3.9
* 9.0 5.1
* 6.3
* 7.6
* 9.0
* *
* *
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
it
* * * *
0.5 0.4
0.8 0.6
1.0 0.8
1.2 0.9
1.3 1.0
1.8 1.4
2.1 1.6
2.9 2.1
3.7 2.7
4.5 3.2
5.3 3.7
6.2 4.2
7.1 4.8
8.0 5.3
9.0 5.9
7.1
8.4
9.7
*
*
*
*
*
*
*
*
*
Concern (grams per cubic
0.01 0.02 0.035 0.05
0.3
0.5
0.6
0.8
0.9
1.2
1.3
1.7
2.1
2.5
2.9
3.3
3.7
4.1
4.5
5.3
6.2
7.1
8.0
9.0
0.2
0.3
0.4
0.5
0.6
0.8
0.9
1.1
1.3
1.5
1.7
2.0
2.1
2.3
2.5
2.9
3.3
3.7
4.1
4.5
5.3
6.2
7.1
8.0
9.0
*
*
*
*
*
*
0.2 0.1
0.3 0.2
0.3 0.3
0.4 0.3
0.4 0.3
0.5 0.4
0.6 0.5
0.8 0.6
0.9 0.8
1.1 0.9
1.2 '.0
1.3 .1
1.5 .2
1.6 .2
1.7 .3
1.9 .5
2.1 .7
2.4 .8
2.6 2.0
2.8 2.1
3.3 2.5
3.7 2.8
4.2 3.1
4.6 3.4
5.1 3.7
6.3 4.5
7.6 5.3
9.0 6.2
* 7.1
* 8.0
* 9.0
meter)
0.075 0.1 0.25 0.5 0.75 1.0 2.0 5.0 10.0
0.1 0.1 0.1 ** ** ** ** ** **
0.2 0.1 0.1 0.1 0.1 ** ** ** **
0.2 0.2 0.1 0.1 0.1 0.1 ** ** **
0.2 0.2 0.1 0.1 0.1 0.1 ** ** **
0.3 0.2 0.1 0.1 0.1 0. ** ** **
0.4 0.3 0.2 0.1 0.1 0. 0.1 ** **
0.4 0.3 0.2 0.1 0.1 0. 0.1 ** **
0.5 0.4 0.3 0.2 0.1 0. 0.1 0. **
0.6 0.5 0.3 0.2 0.2 0. 0.1 0. **
0.7 0.6 0.3 0.2 0.2 0.2 0.1 0. **
0.8 0.6 0.4 0.3 0.2 0.2 0.1 0. 0.1
0.8 0.7 0.4 0.3 0.2 0.2 0.1 0. 0.1
0.9 0.8 0.4 0.3 0.2 0.2 0.1 0. 0.1
1.0 0.8 0.5 0.3 0.3 0.2 0.2 0. 0.1
1.0 0.9 0.5 0.3 0.3 0.2 0.2 0. 0.1
1.2 1.0 0.6 0.4 0.3 0.3 0.2 0. 0.1
1.3 1.1 0.6 0.4 0.3 0.3 0.2 0. 0.1
1.4 1.2 0.7 0.4 0.4 0.3 0.2 0. 0.1
1.5 1.2 0.7 0.5 0.4 0.3 0.2 0. 0.
1.6 1.3 0.8 0.5 0.4 0.3 0.2 0. 0.
1.8 1.5 0.8 0.6 0.4 0.4 0.3 0.2 0.
2.0 1.7 0.9 0.6 0.5 0.4 0.3 0.2 0.
2.3 1.8 1.0 0.7 0.5 0.4 0.3 0.2 0.
2.5 2.0 1.1 0.7 0.6 0.5 0.3 0.2 0.
2.7 2.1 1.2 0.8 0.6 0.5 0.3 0.2 0.
3.2 2.5 1.3 0.9 0.7 0.6 0.4 0.2 0.2
3.7 2.9 1.5 1.0 0.8 0.6 0.4 0.3 0.2
4.2 3.3 1.7 1.1 0.8 0.7 0.5 0.3 0.2
4.8 3.7 1.8 1.2 0.9 0.8 0.5 0.3 0.2
5.3 4.1 2.0 1.2 1.0 0.8 0.5 0.3 0.2
5.9 4.5 2.1 1.3 1.0 0.9 0.6 0.3 0.2
SEE NEXT PAGE FOR HIGHER QUANTITIES Of RELEASE (OR).
Multiply miles by 1.6 to get kilometers (km).
To find distance: Find nearest LOC across top. Use the lower LOC value for in-between numbers. This is a conservative approach.
Find nearest OR on left column.
Read across and down to find distance in miles.
Notes: * - No distance estimated because method is not valid for distances greater than 10 mites.
** - No distance estimated because method is not valid for distances less than 0.1 mile.
-------
Exhibit 3-1 (continued)
VULNERABLE ZONE DISTANCES FOR RATES OF RELEASE AND LEVEL OF CONCERN
SCREENING - Rural, F Atmospheric Stability, Low Wind Speed (3.4 miles per hour). Distances arc Given in Miles
For Quantities of Release up to 10,000 pounds/minute
OR
Rate of
Release
(#/min)
500
600
700
800
900
1000
uj 1250
i. 1500
K. 1750
2000
2500
3000
3500
4000
4500
5000
6000
7000
8000
9000
10000
(For LOC
0.0001
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
#
*
*
*
less than
0.0004 0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
this,
.0007
it
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
assume
0.0010 0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
10 mile
.0020
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
distance
0.0035 0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
!oo5
*
*
*
*
*
*
*
*
*
*
*
it
*
*
*
*
*
*
*
*
*
Levels of
0.0075
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
Concern
0.01 0.
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
(grams per
02 0.035
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
cubic meter)
0.05 0.075 0.1 0.25 0.5 0.75 1 2 5 10
9.0 5.9 4.5 2.1 1.3 1.0 0.9 0.6 0.3 0.2
* 7.1 5.3 2.5 1.5 1.2 .0 0.6 0.4 0.3
* 8.4 6.2 2.8 1.7 1.3 .1 0.7 0.4 0.3
* 9.7 7.1 3.1 1.8 1.4 .2 0.8 0.4 0.3
* * 8.0 3.4 2.0 1.5 .2 0.8 0.5 0.3
* * 9.0 3.7 2.1 1.6 .3 0.9 0.5 0.3
* * 4.5 2.5 1.9 .5 1.0 0.6 0.4
* * 5.3 2.9 2.1 1.7 1.1 0.6 0.4
* * 6.2 3.3 2.4 2.0 1.2 0.7 0.5
* * 7.1 3.7 2.7 2.1 1.3 0.8 0.5
* * 9.0 4.5 3.2 2.5 1.5 0.9 0.6
* * * 5.3 3.7 2.9 1.7 1.0 0.6
* * 6.2 4.2 3.3 2.0 1.1 0.7
* * 7.1 4.8 3.7 2.1 1.2 0.8
* * 8.0 5.3 4.1 2.3 1.2 0.8
* * 9.0 5.9 4.5 2.5 1.3 0.9
* * » 7.1 5.3 2.9 1.5 1.0
* * * 8.4 6.2 3.3 1.7 1.1
* * * 9.7 7.1 3.7 1.8 1.2
* * * * * 8.0 4.1 2.0 1.2
* * * * * 9.0 4.5 2.1 1.3
FOR LOWER QUANTITIES OF RELEASE, SEE PREVIOUS PAGE.
Multiply miles by 1.6 to get kilometers (km).
To find distance: Find nearest LOC across top. Use the lower LOC value for in-between numbers. This is a conservative approach.
Find nearest OR on left column.
Read across and down to find distance in miles.
Notes: * - No distance estimated because method is not valid for distances greater than 10 miles.
** - No distance estimated because method is not valid for distances less than 0.1 mile.
-------
Exhibit 3-2
VULNERABLE ZONE DISTANCES FOR RATES OF RELEASE AND LEVEL OF CONCERN
Urban, F Atmospheric Stability, 3.4 Miles Per Hour Wind Speed, Distances are Given in Miles
For Quantities of Release up to 10,000 pounds/minute
OR
Rate of
Release
(*/min)
1
3
5
8
10
15
20
25
30
35
40
45
50
U> 60
.i. 70
£ 80
90
100
120
140
160
180
200
250
300
350
400
450
500
(For LOG
0.00001
4.5
7.6
*
£
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
less than
0.00005
1.5
2.4
3.1
3.8
4.5
6.4
7.6
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
this,
0.0001
1.0
1.5
2.0
2.4
2.8
3.8
4.5
6.1
7.6
9.1
*
*
*
*
*
*
*
it
*
*
*
*
*
*
*
*
*
*
*
*
*
assume 10
0.0004
0.5
0.7
0.8
1 .0
1.1
1.5
1.8
2.3
2.8
3.2
3.6
4.1
4.5
4.9
5.3
6.1
6.8
7.6
8.3
9.1
*
*
*
*
*
*
*
*
*
*
*
mile distance)
0.0007 0.001
0.3
0.5
0.6
0.7
0.8
1 .1
1.2
1.6
1.9
2.2
2.5
2.8
3.0
3.3
3.5
4.0
4.5
4.9
5.4
5.8
6.7
7.6
8.5
9.3
*
*
*
*
*
*
*
0.3
0.4
0.5
0.6
0.7
0.9
1.0
1.3
1.5
1.8
2.0
2.2
2.4
2.6
2.8
3.1
3.5
3.8
4.1
4.5
5.1
5.8
6.4
7.0
7.6
9.1
*
*
*
*
*
0.002
0.2
0.3
0.3
0.4
0.5
0.6
0.7
0.8
.0
.1
.3
.4
.5
.6
1.8
2.0
2.2
2.4
2.6
2.8
3.1
3.5
3.8
4.1
4.5
5.3
6.1
6.8
7.6
8.3
9.1
Levels
0.0035
0.1
0.2
0.3
0.3
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
.2
.4
.5
.7
.8
1.9
2.1
2.4
2.6
2.8
3.0
3.5
4.0
4.5
4.9
5.4
5.8
of Concern
0.005 0
0.1
0.2
0.2
0.3
0.3
0.4
0.4
0.5
0.6
0.7
0.7
0.8
0.9
0.9
1.0
1.1
.2
.3
.4
.5
.7
.9
2.0
2.2
2.4
2.8
3.1
3.5
3.8
4.1
4.5
(grams per cubic meter)
.0075 0.01 0.02 0.035 0.05 0.075 0.1 0.25 0.5 0.75 1.0 2.0 5.0 10.0
0.2 0.2 0.1 0. 0.1 0.1 0. ** ** ** ** ** ** **
0.3 0.3 0.2 0. 0.1 0.1 0. 0.1 ** ** ** ** ** **
0.4 0.3 0.2 0.2 0.2 0.1 0. 0. ** ** ** * ** **
0.5 0.4 0.3 0.2 0.2 0.1 0. 0. 0.1 ** ** * ** **
0.5 0.5 0.3 0.2 0.2 0.2 0. 0. 0.1 ** ** * ** **
0.6 0.5 0.3 0.3 0.2 0.2 0.2 0. 0. 0.1 ** * ** **
0.6 0.6 0.4 0.3 0.2 0.2 0.2 0. 0. 0.1 0.1 * ** **
0.7 0.6 0.4 0.3 0.3 0.2 0.2 0. 0. 0.1 0.1 ** ** **
0.7 0.6 0.4 0.3 0.3 0.2 0.2 0. 0. 0.1 0.1 ** ** **
0.8 0.7 0.5 0.3 0.3 0.2 0.2 0. 0. 0.1 0.1 ** ** **
0.9 0.7 0.5 0.4 0.3 0.3 0.2 0. 0. 0.1 0.1 ** ** **
1.0 0.8 0.6 0.4 0.3 0.3 0.2 0.1 0. 0.1 0.1 0.1 ** **
.0 0.9 0.6 0.4 0.4 0.3 0.3 0.2 0. 0.1 0.1 0.1 ** **
.1 0.9 0.6 0.5 0.4 0.3 0.3 0.2 0. 0.1 0.1 0.1 ** **
.2 1.0 0.7 0.5 0.4 0.3 0.3 0.2 0. 0.1 0.1 0.1 ** **
.3 .1 0.7 0.5 0.4 0.4 0.3 0.2 0. 0.1 0.1 0.1 ** **
.5 .2 0.8 0.6 0.5 0.4 0.3 0.2 0. 0.1 0.1 0.1 ** **
1.6 .3 0.9 0.6 0.5 0.4 0.4 0.2 0.2 0.1 0.1 0.1 ** **
1.7 .4 0.9 0.7 0.6 0.4 0.4 0.2 0.2 0.1 0.1 0.1 0.1 **
1.8 .5 1.0 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.1 0.1 0. **
2.1 .8 1.1 0.8 0.7 0.5 0.5 0.3 0.2 0.2 0.1 0.1 0. **
2.4 2.0 .3 0.9 0.7 0.6 0.5 0.3 0.2 0.2 0.2 0.1 0. **
2.6 2.2 .4 1.0 0.8 0.6 0.6 0.3 0.2 0.2 0.2 0.1 0. 0.1
2.9 2.4 .5 1.1 0.9 0.7 0.6 0.4 0.3 0.2 0.2 0.1 0. 0.1
3.1 2.6 .6 1.2 0.9 0.7 0.6 0.4 0.3 0.2 0.2 0.1 0. 0.1
3.4 2.8 .8 1.2 1.0 0.8 0.7 0.4 0.3 0.2 0.2 0.1 0. 0.1
SEE NEXT PAGE FOR HIGHER QUANTITIES OF RELEASE (OR)
Multiply miles by 1.6 to get kilometers (km).
To find distance:
Find nearest LOC across top. Use the lower LOC value for in-between numbers. This is a conservative approach.
Find nearest OR on left column.
Read across and down to find distance in miles.
Notes: * - No distance estimated because method is not valid for distances greater than 10 miles.
** - No distance estimated because method is not valid for distances less than 0.1 mile.
-------
Exhibit 3-2 (continued)
VULNERABLE ZONE DISTANCES FOR RATES OF RELEASE KM LEVEL OF CONCERN
Urban, F Atmospheric Stability, 3.4 Kites Per Hour Wind Speed, Distances are Given in Miles
For Quantities of Release up to 10,000 pounds/minute
OR
Rate of
Release
(#/min)
600
700
800
900
1000
1250
1500
1750
2000
2500
3000
u. 3500
' 4000
tv 4500
5000
6000
7000
8000
9000
10000
Levels of Concern (grams per cubic meter)
(For LOG less than this, assume 10 mile distance)
0.00001 0.00005 0.0001 0.0004 0.0007 0.001 0.002 0.0035 0.005 0.0075 0.01 0.02 0.035 0.05 0.075 0.1 0.25 0.5 0.75 1.0 2.0 5.0 10.0
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
* *
* 6.7 5.1 3.8 3.1 2.0 1.4 1.1 0.9 0.7 0.4 0.3 0.3 0.2 0.2 0.1 0.1
* 7.6 5.8 4.3 3.5 2.2 1.5 1.2 1.0 0.8 0.5 0.3 0.3 0.2 0.2 0.1 0.1
8.5 6.4 4.7 3.8 2.4 1.7 1.3 1.0 0.9 0.5 0.4 0.3 0.3 0.2 0.1 0.1
9.3 7.0 5.1 4.1 2.6 1.8 1.4 1.1 0.9 0.6 0.4 0.3 0.3 0.2 0.1 0.1
7.6 5.5 4.5 2.8 1.9 1.5 1.2 1.0 0.6 0.4 0.3 0.3 0.2 0.1 0.
9.1 6.6 5.3 3.2 2.2 1.8 1.4 1.1 0.7 0.5 0.4 0.3 0.2 0.1 0.
7.6 6.1 3.6 2.5 2.0 1.5 1.3 0.7 0.5 0.4 0.3 0.2 0.2 0.
8.6 6.8 4.1 2.8 2.2 1.7 1.4 0.8 0.6 0.4 0.4 0.3 0.2 0.
9.6 7.6 4.5 3.0 2.4 1.8 1.5 0.9 0.6 0.5 0.4 0.3 0.2 0.
9.1 5.3 3.5 2.8 2.1 1.8 1.0 0.7 0.5 0.5 0.3 0.2 0.
6.1 4.0 3.1 2.4 2.0 1.1 0.7 0.6 0.5 0.3 0.2 0.2
6.8 4.5 3.5 2.6 2.2 1.2 0.8 0.6 0.6 0.4 0.2 0.2
7.6 4.9 3.8 2.9 2.4 1.3 0.9 0.7 0.6 0.4 0.3 0.2
8.3 5.4 4.1 3.1 2.6 1.4 0.9 0.7 0.6 0.4 0.3 0.2
9.1 5.8 4.5 3.4 2.8 1.5 1.0 0.8 0.7 0.5 0.3 0.2
* 6.7 5.1 3.8 3.1 1.7 1.1 0.9 0.7 0.5 0.3 0.2
* 7.6 5.8 4.3 3.5 1.9 1.2 1.0 0.8 0.6 0.3 0.2
* 8.5 6.4 4.7 3.8 2.0 1.3 1.0 0.9 0.6 0.4 0.3
* 9.3 7.0 5.1 4.1 2.2 1.4 1.1 0.9 0.6 0.4 0.3
* * 7.6 5.5 4.5 2.4 1.5 1.2 1.0 0.7 0.4 0.3
FOR LOWER QUANTITIES OF RELEASE, SEE PREVIOUS PAGE.
To find distance: Find nearest LOC across top. Use the lower LOC value for in-between numbers. This is a conservative approach.
Find nearest OR on left column.
Read across and down to find distance in miles.
Notes:
* - No distance estimated because method is not valid for distances greater than 10 miles.
** - No distance estimated because method is not valid for distances less than 0.1 mile.
-------
Exhibit 3-3
VULNERABLE ZONE DISTANCES FOR RATES OF RELEASE AND LEVEL OF CONCERN
Rural, D Atmospheric Stability, 11.9 Miles Per Hour Wind Speed, Distances are given in Miles
For Quantities of Release up to 10,000 pounds/minute
QR
Rates of
Release (For LOC
(#/min) 0.00001
It n
3.9
2 6.5
30 1
9.1
4 *
5 *
8 *
10 *
15 *
20 *
25 *
30 *
35 *
40 *
45 *
50 *
u, 60 *
i. 70
£ 80
90 *
100 *
120 *
HO *
160 *
180 *
200 *
250 *
300 *
350 *
400 *
450 *
500 *
less than
0.00005
I'j
.3
2.0
27
.7
3.3
3.9
5r
.5
6.5
9.1
*
#
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
this,
0.0001
O.e
1.3
1-.
.7
2.0
2.4
3.3
3.9
5.2
6.5
7.8
9.1
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
assume 10
0.0004
0.4
0.5
0-t
.7
0.8
0.9
1 .3
1 .5
1.9
2.4
2.8
3.1
3.5
3.9
4.2
4.6
5.2
5.9
6.5
7.2
7.8
9.1
*
*
*
*
*
*
*
*
*
*
mi le distance)
0.0007 0.001
0.3
0.4
0.5
0.6
0.7
0.9
1 .0
1.3
1.6
1.9
2.1
2.4
2.6
2.8
3.0
3.5
3.9
4.3
4.7
5.1
5.8
6.5
7.3
8.0
8.7
*
*
*
it
*
*
0.2
0.3
0.4
0.5
0.5
0.7
0.8
1.1
1 .3
1.5
1.7
1.8
2.0
2.2
2.4
2.7
3.0
3.3
3.6
3.9
4.4
5.0
5.5
6.0
6.5
7.8
9.1
*
*
*
*
Levels of Concern (grams per cubic meter)
0.002 0.0035 0.005 0.0075 0.01 0.02 0.035 0.05 0.075 0.1 0.25 0.5 0.75 1.0 2.0 5.0 10.0
1.2 0.8 0.7 0.5 0.4 0.3 0.2 0.2 0.1 0.1 0.1 0.1 ** ** *
1.3 0.9 0.7 0.6 0.5 0.3 0.2 0.2 0.2 0.1 0.1 0.1 ** ** *
1.4 1.0 0.8 0.6 0.5 0.3 0.2 0.2 0.2 0.1 0.1 0. ** ** *
1.5 1.0 0.8 0.6 0.5 0.4 0.3 0.2 0.2 0.1 0.1 0. 0.1 ** *
1.7 1.2 0.9 0.7 0.6 0.4 0.3 0.2 0.2 0.2 0.1 0. 0.1 ** *
1.8 1.3 1.0 0.8 0.7 0.4 0.3 0.3 0.2 0.2 0.1 0. 0.1 0. *
2.0 1.4 1.1 0.9 0.7 0.5 0.3 0.3 0.2 0.2 0.1 0. 0.1 0. * *
2.2 1.5 1.2 0.9 0.8 0.5 0.4 0.3 0.2 0.2 0.1 0. 0.1 0. * *
2.4 1.6 1.3 1.0 0.8 0.5 0.4 0.3 0.3 0.2 0.1 0.1 0.1 0. * *
2.7 1.8 1.4 1.1 0.9 0.6 0.4 0.4 0.3 0.2 0.1 0.1 0.1 0. * *
3.0 2.0 1.6 1.2 1.0 0.7 0.5 0.4 0.3 0.3 0.2 0.1 0.1 0. 0.1 *
3.3 2.2 1.7 1.3 1.1 0.7 0.5 0.4 0.3 0.3 0.2 0.1 0.1 0. 0. *
3.6 2.4 1.9 1.4 1.2 0.8 0.5 0.4 0.4 0.3 0.2 0.1 0.1 0. 0. *
3.9 2.6 2.0 1.5 1.3 0.8 0.6 0.5 0.4 0.3 0.2 0.1 0.1 0. 0. *
4.6 3.0 2.4 1.8 1.5 0.9 0.7 0.5 0.4 0.4 0.2 0.1 0.1 0. 0. *
5.2 3.5 2.7 2.0 1.7 1.1 0.7 0.6 0.5 0.4 0.2 0.2 0.1 0. 0. **
5.9 3.9 3.0 2.2 1.8 1.2 0.8 0.7 0.5 0.4 0.3 0.2 0.1 0. 0. 0.1
6.5 4.3 3.3 2.5 2.0 1.3 0.9 0.7 0.6 0.5 0.3 0.2 0.2 0. 0.1 0.1
7.2 4.7 3.6 2.7 2.2 1.4 1.0 0.8 0.6 0.5 0.3 0.2 0.2 0. 0.1 0.1 **
7.8 5.1 3.9 2.9 2.4 1.5 1.0 0.8 0.6 0.5 0.3 0.2 0.2 0. 0.1 0.1 **
SEE NEXT PAGE FOR HIGHER QUANTITIES OF RELEASE (QR)
Multiply miles by 1.6 to get kilometers (km).
To find distance:
Find nearest LOC across top. Use the lower LOC value for in-between numbers. This is a conservative approach.
Find nearest OR on left column.
Read across and down to find distance in miles.
Notes: * - No distance estimated because method is not valid for distances greater than 10 miles.
** - No distance estimated because method is not valid for distances less than 0.1 mile.
-------
Exhibit 3-3 (continued)
VULNERABLE ZONE DISTANCES FOR RATES OF RELEASE AND LEVEL OF CONCERN
Rural, D Atmospheric Stability, 11.9 Miles Per Hour Wind Speed, Distances are given in Miles
For Quantities of Release up to 10,000 pounds/minute
OR
Rate of
Release
(#/min)
600
700
800
900
1000
1250
1500
1750
2000
2500
3000
3500
u> 4000
' 4500
5; 5000
6000
7000
8000
9000
10000
Levels of Concern (grams per cubic meter)
(For LOC less than this, assume 10 mile distance)
0.00001 0.00005 0.0001 0.0004 0.0007 0.001 0.002 0.0035 0.005 0.0075 0.01 0.02 0.035 0.05 0.075 0.1 0.25 0.5 0.75 1.0 2.0 5.0 10.0
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
* * » *
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
* * * *
9.1 5.8 4.4 3.3 2.7 1.7 1.2 0.9 0.7 0.6 0.4 0.2 0.2 0.2 0.1 0.1 **
6.5 5.0 3.7 3.0 1.8 1.3 1.0 0.8 0.7 0.4 0.3 0.2 0.2 0.1 0.1 0.1
7.3 5.5 4.1 3.3 2.0 1.4 .1 0.9 0.7 0.4 0.3 0.2 0.2 0.1 0.1 0.1
8.0 6.0 4.4 3.6 2.2 1.5 .2 0.9 0.8 0.4 0.3 0.2 0.2 0.1 0.1 0.1
8.7 6.5 4.8 3.9 2.4 1.6 .3 1.0 0.8 0.5 0.3 0.3 0.2 0.1 0.1 0.1
* 7.8 5.7 4.6 2.8 1.9 .5 1.1 0.9 0.5 0.4 0.3 0.2 0.2 0.1 0.1
9.1 6.5 5.2 3.1 2.1 .7 1.3 1.1 0.6 0.4 0.3 0.3 0.2 0.1 0.1
7.4 5.9 3.5 2.4 .8 1.4 1.2 0.7 0.4 0.3 0.3 0.2 0.1 0.1
8.2 6.5 3.9 2.6 2.0 1.5 1.3 0.7 0.5 0.4 0.3 0.2 0.1 0.1
9.9 7.8 4.6 3.0 2.4 1.8 1.5 0.8 0.5 0.4 0.4 0.2 0.1 0.
* 9.1 5.2 3.5 2.7 2.0 1.7 0.9 0.6 0.5 0.4 0.3 0.2 0.
* * 5.9 3.9 3.0 2.2 1.8 1.0 0.7 0.5 0.4 0.3 0.2 0.
* * 6.5 4.3 3.3 2.5 2.0 1.1 0.7 0.6 0.5 0.3 0.2 0.
* * 7.2 4.7 3.6 2.7 2.2 1.2 0.8 0.6 0.5 0.3 0.2 0.
* * 7.8 5.1 3.9 2.9 2.4 1.3 0.8 0.6 0.5 0.4 0.2 0.
* * 9.1 5.8 4.4 3.3 2.7 1.4 0.9 0.7 0.6 0.4 0.2 0.2
* * * 6.5 5.0 3.7 3.0 1.6 1.0 0.8 0.7 0.4 0.3 0.2
* * * 7.3 5.5 4.1 3.3 1.7 1.1 0.9 0.7 0.5 0.3 0.2
* * * 8.0 6.0 4.4 3.6 1.9 1.2 0.9 0.8 0.5 0.3 0.2
* * * 8.7 6.5 4.8 3.9 2.0 1.3 1.0 0.8 0.5 0.3 0.2
FOR LOWER QUANTITIES OF RELEASE, SEE PREVIOUS PAGE.
To find distance:
Multiply miles by 1.6 to get kilometers (km).
Notes:
Find nearest LOC across top. Use the lower LOC value for in-between numbers. This is a conservative approach.
Find nearest OR on left column.
Read across and down to find distance in miles.
* - No distance estimated because method is not valid for distances greater than 10 miles.
** - No distance estimated because method is not valid for distances less than 0.1 mile.
-------
Exhibit 3-4
VULNERABLE ZONE DISTANCES FOR RATES OF RELEASE AND LEVEL OF CONCERN
Urban, 0 Atmospheric Stability, 11.9 Miles Per Hour Wind Speed, Distances are Given in Miles
For Quantities of Release up to 10,000 pounds/minute
OR
e of
ease
min)
1
2
3
4
5
8
10
15
20
25
30
35
40
45
50
60
' 70
80
1 90
100
120
140
160
180
200
250
300
350
400
450
500
(For LOG
0.00001
1.2
1.9
2.5
3.1
3.7
5.3
6.4
9.2
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
*
less than
0.00005
0.5
0.7
0.9
1.0
1.2
1.6
1.9
2.5
3.1
3.7
4.2
4.8
5.3
5.9
6.4
7.5
8.6
9.7
*
*
*
*
*
*
*
*
*
*
*
*
*
this,
0.0001
0.3
0.5
0.6
0.7
0.8
1.0
1.2
1.5
1.9
2.2
2.5
2.8
3.1
3.4
3.7
4.2
4.8
5.3
5.9
6.4
7.5
8.6
9.7
*
*
*
*
*
*
*
*
assume 10
0.0004
0.1
0.2
0.3
0.3
0.3
0.5
0.5
0.6
0.8
0.9
1.0
.1
.2
.3
.4
.5
.7
.9
2.0
2.2
2.5
2.8
3.1
3.4
3.7
4.4
5.0
5.7
6.4
7.1
7.8
mile distance)
0.0007 0.001
0.1
0.2
0.2
0.2
0.3
0.3
0.4
0.5
0.6
0.6
0.7
0.8
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.7
1.9
2.1
2.2
2.4
2.8
3.2
3.7
4.1
4.5
4.9
0.1
0.1
0.2
0.2
0.2
0.3
0.3
0.4
0.5
0.5
0.6
0.6
0.7
0.7
0.8
0.9
0.9
1.0
1.1
1.2
1.3
1.5
1.6
1.7
1.9
2.2
2.5
2.8
3.1
3.4
3.7
0.002
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.3
0.3
0.3
0.4
0.4
0.5
0.5
0.5
0.6
0.6
0.7
0.7
0.8
0.9
0.9
1.0
1.1
1.2
1.4
1.5
1.7
1.9
2.0
2.2
Levels of
0.0035 0
**
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.5
0.5
0.5
0.6
0.6
0.7
0.7
0.8
0.8
1.0
1.1
1.2
1.3
1.4
1.5
Concern
.005 0.
**
0.1
0.1
0.1
0.1
0.1
0.1
0.2
0.2
0.2
0.2
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.5
0.5
0.5
0.6
0.6
0.7
0.8
0.9
0.9
1.0
1.1
1.2
(grams per cubic meter)
0075 0.01 0.02 0.035 0.05 0.075 0.1 0.25 0.5 0.75
0.4 0.3 0.2 0.2 0. 0. 0. 0.1 ** **
0.5 0.4 0.3 0.2 0.2 0. 0. 0.1 0.1 **
0.5 0.4 0.3 0.2 0.2 0. 0. 0.1 0.1 **
0.5 0.5 0.3 0.2 0.2 0.2 0. 0.1 0.1 **
0.6 0.5 0.3 0.3 0.2 0.2 0. 0.1 0.1 0.
0.7 0.6 0.4 0.3 0.2 0.2 0.2 0.1 0. 0.
0.7 0.6 0.4 0.3 0.3 0.2 0.2 0.1 0. 0.
0.8 0.7 0.5 0.3 0.3 0.2 0.2 0.1 0. 0.
0.9 0.7 0.5 0.4 0.3 0.2 0.2 0.1 0. 0.
0.9 0.8 0.5 0.4 0.3 0.2 0.2 0.1 0. 0.
1.0 2.0 5.0 10.0
** ** ** **
* * * **
* * * **
* * * **
* * * **
** * * **
0.1 * * **
0.1 * * **
0.1 * * **
0.1 * * **
SEE NEXT PAGE FOR HIGHER QUANTITIES OF RELEASE (QR)
Multiply miles by 1.6 to get kilometers (km).
To find distance:
Find nearest LOC across top. Use the lower LOG value for in-between numbers. This is a conservative approach.
Find nearest QR on left column.
Read across and down to find distance in miles.
Notes: * - No distance estimated because method is not valid for distances greater than 10 miles.
** - No distance estimated because method is not valid for distances less than 0.1 mile.
-------
Exhibit 3-4 (continued)
VULNERABLE ZONE DISTANCES FOR RATES OF RELEASE AND LEVEL OF CONCERN
Urban, D Atmospheric Stability, 11.9 Miles Per Hour Uind Speed, Distances are Given in Miles
For Quantities of Release up to 10,000 pounds/minute
)R
ttity
ased
n'n)
600
700
800
900
1000
1250
1500
1750
2000
2500
3000
3500
, 4000
4500
; 5000
6000
7000
8000
9000
10000
Levels of Concern (grams per cubic meter)
(For LOG less than this, assume 10 mile distance)
0.00001 0.00005 0.0001 0.0004 0.0007 0.001 0.002 0.0035 0.005 0.0075 0.01 0.02 0.035 0.05 0.075 0.1 0.25 0.5 0.75 1.0 2.0 5.0 10.0
*
*
it
*
*
*
it
*
*
*
*
*
*
*
*
*
*
*
* *
9.2 5.6 4.2 2.5 1.7 1.3 1.0 0.9 0.6 0.4 0.3 0.3 0.2 0.1 0.1 0.1 0.1 ** **
6.4 4.8 2.8 1.9 1.5 1.1 0.9 0.6 0.5 0.4 0.3 0.3 0.2 0.1 0.1 0.1 0.1 **
7.2 5.3 3.1 2.1 1.6 1.2 .0 0.7 0.5 0.4 0.3 0.3 0.2 0.1 0.1 0.1 0.1 **
8.0 5.9 3.4 2.2 1.7 1.3 .1 0.7 0.5 0.4 0.3 0.3 0.2 0.1 0.1 0.1 0.1 **
8.8 6.4 3.7 2.4 1.9 1.4 .2 0.8 0.6 0.5 0.4 0.3 0.2 0.1 0.1 0.1 0.1 **
* 7.8 4.4 2.8 2.2 1.7 .4 0.9 0.6 0.5 0.4 0.3 0.2 0.1 0.1 0.1 0.1 **
* 9.2 5.0 3.2 2.5 1.9 .5 1.0 0.7 0.6 0.5 0.4 0.2 0.2 0.1 0.1 0.1 **
* * 5.7 3.7 2.8 2.1 1.7 1.1 0.8 0.6 0.5 0.4 0.3 0.2 0.1 0.1 0.1 0.1
* * 6.4 4.1 3.1 2.3 1.9 1.2 0.8 0.7 0.5 0.5 0.3 0.2 0.2 0.1 0.1 0.1
* * 7.8 4.9 3.7 2.7 2.2 1.4
* * 9.2 5.6 4.2 3.1 2.5 1.5
* * * 6.4 4.8 3.5 2.8 1.7
* * * 7.2 5.3 3.8 3.1 1.9
* * * 8.0 5.9 4.2 3.4 2.0
* * * 8.8 6.4 4.6 3.7 2.2
* * * * 7.5 5.3 4.2 2.5
* * * * 8.6 6.1 4.8 2.8
.0 0.8 0.6 0.5 0.3 0.2 0.2 0.1 0.1 0.1
.1 0.9 0.7 0.6 0.3 0.2 0.2 0.2 0.1 0.1
.2 0.9 0.7 0.6 0.4 0.3 0.2 0.2 0.1 0.1 0.1
.3 1.0 0.8 0.7 0.4 0.3 0.2 0.2 0.1 0.1 0.1
.4 .1 0.9 0.7 0.4 0.3 0.2 0.2 0.1 0.1 0.1
.5 .2 0.9 0.8 0.5 0.3 0.2 0.2 0.1 0.1 0.1
.7 .3 1.0 0.9 0.5 0.3 0.3 0.2 0.2 0.1 0.1
.9 .5 1.1 0.9 0.5 0.4 0.3 0.3 0.2 0.1 0.1
* * * * 9.7 6.8 5.3 3.1 2.1 .6 1.2 1.0 0.6 0.4 0.3 0.3 0.2 0.1 0.1
* * * * * 7.5 5.9 3.4 2.2 .7, 1.3 1.1 0.6 0.4 0.3 0.3 0.2 0.1 0.1
* * ***** 8.2 6.4 3.7 2.4 .9 1.4 1.2 0.7 0.5 0.4 0.3 0.2 0.1 0.1
FOR LOWER QUANTITIES OF RELEASE, SEE PREVIOUS PAGE.
Multiply miles by 1.6 to get kilometers (km).
To find distance: Find nearest LOC across top. Use the lower LOC value for in-between numbers. This is a conservative approach.
Find nearest OR on left column.
Read across and down to find distance in miles.
Notes:
* - No distance estimated because method is not valid for distances greater than 10 miles.
-------
4. Using the Results of a Hazards Analysis
As noted in Chapter 1, hazards analysis is a nec-
essary first step in developing a comprehensive
emergency plan; it is a decision-making proc-
ess that helps planners screen and decide which
facilities to plan for. After local planners have
completed a hazards identification, vulnerability
analysis, and risk analysis, they should develop
appropriate response procedures and organize
all this material into an emergency response
plan. This information can also be used for the
development of site-specific release scenarios
for training exercises and for refining response
plans. This chapter summarizes the plan con-
tents required by Title III of the Superfund
Amendments and Reauthorization Act (SARA),
lists the information provided by by a hazards
analysis, briefly discusses three case studies for
planning purposes, and describes how comput-
ers can be helpful to the planning process.
Planners should use the National Response
Team's Hazardous Materials Energency Planning
Guide (NRT-1) guidance document and the in-
formation generated by using this guidance to
develop emergency plans for their district.
4.1 What the Plan Must Contain
Title III of SARA requires each emergency plan to
include at least each of the following:
(1) Identification of facilities within the local
emergency planning district (LEPD) subject
to the Title III requirements: identification of
routes likely to be used for the transporta-
tion of substances on the list of extremely
hazardous substances (EHSs) ; and identi-
fication of additional facilities contributing
or subjected to additional risk due to their
proximity to facilities subject to Title III of
SARA, such as hospitals or natural gas fa-
cilities.
(2) Methods and procedures to be followed by
facility owners and operators and local
emergency and medical personnel to re-
spond to any releases of EHSs.
(3) Designation of a community emergency
coordinator and facility emergency coordi-
nators, who shall make determinations
necessary to implement the plan.
(4) Procedures providing reliable, effective,
and timely notification by the emergency
coordinators and the community emer-
gency coordinator to persons designated
in the emergency plan, and to the public,
that a release has occurred.
(5) Methods for determining the occurrence of
a release, and the area or population likely
to be affected by such release.
(6) A description of facilities in the community
subject to Title III requirements and emer-
gency equipment at each facility in the
community.
(7) Evacuation plans, including provisions for a
precautionary evacuation and alternative
traffic routes.
(8) Training programs, including schedules for
training of local emergency response and
medical personnel.
(9) Methods and schedules for exercising the
emergency plan.
The information gathered in the hazards analysis
will be useful in fulfilling several of these require-
ments, in particular (I), (4), (5) and (6).
NRT-1 (page 38, Planning Element G) discusses
the integration of the hazards analysis into emer-
gency planning, and should be used as a com-
plement to this guide. NRT-1 discusses ap-
proaches to the planning process, whether a
community chooses to develop a multi-hazard
12/87
4-1
-------
emergency operations plan (EOP) or incorporate
hazardous materials planning into an existing
EOP, or to develop or revise a single-hazard
hazardous materials plan. Sample formats for
emergency plans are outlined and planning ele-
ments are discussed in detail.
4.2 Planning Information Provided by the Hazards Analysis
As a result of the hazards analysis, the following
types of information concerning EHSs should be
available during the initial stages of the planning
process :
Location
(1) What facilities have EHSs
(2) What transportation routes have EHSs
Quantity
(1) The maximum quantity likely to be re-
leased at a facility
(2) The maximum quantity likely to be trans-
ported at one time per transportation vehi-
cle
Potential risks
(1) Likelihood of release
(2) Consequences of release
Other hazards to consider
(1)
(2)
(3)
(4)
(5)
Whether the material is flammable
Whether water can be used on it
Reactivity with other materials present to
form other hazardous substances and/or
to release heat
Likelihood of damage to property
Likelihood of damage to the environment
Emergency response information
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
Size of the vulnerable zone in case of a
release
How many people are likely to be within
the vulnerable zones
Sensitive populations within the vulnerable
zones
Essential service facilities within the vul-
nerable zones
What emergency medical procedures
should be followed
What specialized equipment emergency
medical response personnel or local hos-
pitals need to treat victims of exposure
and whether they have such equipment
Type of protective gear (clothing and
equipment) needed by emergency re-
sponse personnel
- Is it available at the facility?
- Is it available to emergency responders?
What sampling and monitoring devices
can be used to determine concentration
levels
- Are such devices available?
Containment/cleanup procedures
What materials are needed for contain-
ment, neutralization, and cleanup
- Are these materials available?
12/87
4-2
-------
4.3 Case Studies from Hazards Analysis
To illustrate the planning process, and the use of
hazards analysis in this process, the same hypo-
thetical releases of chlorine, ammonia, and
methyl isocyanate as described in Chapter 2
(Exhibit 2-12) and Chapter 3 are used as exam-
ples. Exhibit 4-1 presents relevant data on the
three example chemicals and considerations
that the planning committee needs to address.
This information can be used in the planning
process to ensure that all needs can be accom-
modated should an emergency arise.
In each of the case studies, a release of a haz-
ardous substance is possible and both the re-
sponsible party and local government must be
prepared to handle the resulting hazards and as-
sociated problems. In order to respond in an
effective and safe manner, local emergency re-
sponders (and private sector managers in the
cases of fixed facilities such as the water treat-
ment plant and the pesticide manufacturing
plant portrayed in these case studies) must work
together to create a comprehensive hazardous
materials emergency plan. In order to be effec-
tive, the plan must be tested and updated at
least annually and more often as needed if con-
ditions change after establishment of the plan.
In each of the case studies, planners must first
consider the safety of people within the esti-
mated vulnerable zones. Not only must plan-
ners address evacuation but also in-place shel-
tering, as vapor clouds may move into popu-
lated areas too quickly to allow for a safe evacu-
ation. Adequate warning systems must be in
place to notify the public of a release. Persons
who will require protection from hazardous re-
leases include: a) people located in 'the imme-
diate area of the release (plant employees in the
case studies involving chlorine and methyl
isocyanate, and motorists in the case of an an-
hydrous ammonia tank truck accident), b) peo-
ple in areas threatened by hazards resulting
from the released materials, and c) emergency
responders. (Appendix H presents a detailed
discussion on evacuation and in-place shelter-
ing, including decision-making, planning, con-
ducting an evacuation, sheltering of evacuees,
and re-entry.)
A second planning consideration is hazard con-
trol and containment operations. Procedures for
controlling and containing a hazardous release
must be established and identified within the
plan and exercised regularly. In each of the
case studies, the hazardous material has multi-
ple hazards associated with it. (Chlorine is poi-
sonous, corrosive, and can act as an oxidizer;
anhydrous ammonia is corrosive and can be fa-
tal if inhaled: and methyl isocyanate is poison-
ous and extremely flammable.) Multiple hazards
require special expertise in control and contain-
ment procedures. Regarding incidents where lo-
cal government and private industry are both in-
volved in remedial actions (such as the cases of
the water treatment plant and the pesticide
plant), planners must set forth provisions for co-
operation between the two groups to ensure that
response actions are coordinated and that direc-
tion and control are centralized.
Another key planning consideration is that of
emergency medical care. Provisions must be
made for on-scene emergency medical care
(establishment of a triage area may be neces-
sary) t transport of victims to hospitals, and
emergency room treatment. In order for this
emergency care system to function properly,
the hazardous materials plan should establish
procedures coordinating the activities of the lo-
cal emergency medical services (e.g., fire/res-
cue department, rescue squad, ambulance
service) and local hospitals) to ensure that vic-
tims are treated quickly and effectively.
Specialized medical supplies to treat exposures
to certain chemicals should be identified during
the planning process so that adequate and cur-
rent supplies will be available.
Planners must address several other areas of
community response as well. These include inci-
dent command; communications: search and
rescue: detection, monitoring, sampling and
analysis: damage assessment: cleanup: decon-
tamination: and cost recovery. The hazardous
12/87
4-3
-------
Exhibit 4-1
EXAMPLE HAZARDS MATRIX FOR PLANNING COMMUNITY
K)
^^
00
Hazard A
HazardB
Hazard C
REEVALUATED RESULTS OF HAZARDS ANALYSIS
1. RESULTS OF HAZARDS IDENTIFICATION
a. Chemical Chlorine
b. Location Water treatment plant
c. Quantity
d. Properties
500 bs.
Health Effects.
May be fatal if inhaled. Contact
may cause burns to skin and eyes.
Respiratory conditions may be
aggravated.
Other Hazards:
Corrosive to metal (may damage
structures, equipment, and
vehicles). Oxidizing agent. May
affect water supply (treatment plant
is primary supplier). Vapors will
hang dose to ground level.
2. RESULTS OF VULNERABILITY ANALYSIS
a. Vulnerable zone*
b. Population within
Vulnerable zone
c. Essential services
Wilhinzone
A spill of 500 bs. of chlorine from
a storage tank could result in an
area of radius 1.0 miles where
chlorine gas may exceed the level of
concern (LOG). This is for an urban
area.
Total population within vulnerable
zone is approximately 1250.
None
Ammonia
Tank truck on local interstate
highway
3000 bs.
Health Effects:
May be fatal if inhaled. Contact may
cause burns and blistering to skin
and eyes. Vapors are irritating to
eyes and respiratory tract
Other Hazards:
Corrosive. Will bum under certain
conditions. Vapors will inittaly
hug the ground before rising.
A spill of 3000 bs. of ammonia result-
ing from a collision ol a tank truck could
result in an area of radius 7.6 miles
where ammonia exceeds its LOG. This is
for a rural area.
A total of 13,600 people in the vulnerable
zone including up to 700 persons in
commercial establishments or vehicles near
highway interchange and seasonal influx of
visitors to forest preserve in the fall.
1 volunteer Ire station
Liquid methyl isocyanate (MIC)
Pesticide manufacturing plant in
semi-rural area
1000 bs.
Health Effects:
May be fatal if inhaled. Skin
irritant. Can cause permanent eye
damage. Attacks the respiratory
system and can Injure lungs and
bronchial airways.
Other Hazards:
Extremely flammable. Odorless (in
low concentrations) and colorless.
Reacts violently with water. Vapors
will hang close to ground level.
A spill of 1500 bs. of methyl isocyanate
could affect an area of radius greater than 10
miles with MIC vapors exceeding the LOC.
This is for a rural area assuming the liquid
is hot, not diked, and at 100%
concentration.
A total of 26,700 oeopte in the vulnerable
zone inducing 200 workers at the plant
and 1000 children in school.
1 fire station and 1 police station
'The distances here may not correspond with those in NRT-1 as the assumptions used in the calculation are different
-------
Exhibit 4-1 (Continued)
Hazard A
Hazards
Hazard C
00
-J
3. RESULTS OF RISK ANALYSIS
a. Likelihood of
hazard occurrence
b. Consequences if
people are exposed
c. Consequences for
property
d. Consequences of
environmental exposure
e. Summary: likelihood/
severity of consequences
Low-because chlorine is stored
in an area with leak detection
equipment in 24 hour service with
alarms. Protective equipment is
kept outside storage room.
High levels of chlorine gas in the
nursing home and factory could cause
death and respiratory distress. Bed-
ridden nursing home patients are
especially susceptible. High sever-
ity of consequences. However, gas is
unlikely to reach a nursing home
under reevaluated release conditions.
Possible superficial damage to fac-
ility equipment and structures from
corrosive fumes (repairable).
Possible destruction of surrounding
fauna and flora.
Low/High. The community would assess
this on site and incident specific basis.
High-highway interchange has a history
of accidents due to poor visibility of
exits and entrances.
Motorists' reactions to release vapors may
cause traffic accidents. Injured and trap-
ped motorists are subject to lethal vapors
and possible incineration. Windblown vapors
can cause respiratory distress for nearby
residents and business patrons. High
severity of consequences.
Repairable damage to highway. Potential
destruction of nearby vehicles due to
fire or explosions.
Potential for fire damage to adjacent forest
preserve due to combustible material
(recoverable in the long term).
High/High. The community would assess this
on site and incident specific basis.
Low-facility has up to date containment
facilities with leak detection equipment
and an emergency plan for its employees.
There are good security arrangements that
would deter tampering or accidents re-
sulting from civil uprisings.
If accident occurs while school is in
session, children could be killed,
blinded and/or suffer chronic debilitat-
ing respiratory problems. Plant workers
would be subject to similar effects at
any time. High severity in school hours,
medium severity at all other times.
Vapors may explode in a confined space
causing properly damage (repairable).
Damage could result from fires (repar-
able).
Farm animals and other fauna could be
killed or develop health effects
necessitating trieir destruction or
indirectly causing death.
Low/High to medium. The community would
assess this on site and incident specific
basis.
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Exhibit 4-1 (Continued)
Hazard A
HazardB
Hazard C
EXAMPLES OF EMERGENCY PLANNING INFORMATION RESULTING FROM HAZARDS ANALYSIS
Protective Equipment Needed
Other Equipment Needed
Chemical-resistant clothing with
full body coverage
Positive pressure, self-contained
breathing apparatus
Equipment to repair leaks
(Chlorine B kit")
Sampling and monitoring devices:
° Gas tube samplers and/or
photoionization detectors for
air
° Cokximetric kits for water
Neutralizing materials:
Fly ash
° Cement powder
° Activated carbon
° Soda ash
0 Caustic soda
Chemical-resistant clothing with fuH
body coverage
Positive pressure self-contained
breathing apparatus
Equipment to repair leaks if possbte
(plugging and/or patching devices)
Sampling and monitoring devices:
° Gas tube samplers
° Photoionization detectors
Neutralizing materials:
0 Fly ash
0 Cement powder
Vinegar and other dilute adds
Chemical-resistant clothing with full
body coverage
Thermal protection (in case of fire)
Positive pressure self-contained
breathing apparatus
Equipment to repair leaks if possfcte
(plugging and/or patching devices)
Sampling and monitoring devices
Alcohol foam and dry chemical agent
in case of fire
Equipment for buiding dikes for
containment:
° Heavy equipment
Cleanup of Residual Contamination
Ov
Equipment for containing runoff
(if water spray is used to knock
down vapors):
° Heavy equipment (bulldozers,
backhoes, dump trucks)
° Soil, sandbags, foamed
polyurethane, or foamed
concrete for dikes
Heavy equipment for removal of
contaminated soil, pavement,
containment material
Equipment for containing runoff
(if water spray is used to knock
down vapors):
° Heavy equipment (buldozers,
backhoes, dump trucks)
° Soil, sandbags, foamed
polyurethane, or foamed concrete
for dikes
Heavy equipment for removal of
contaminated soil and pavement
SUMMARY: Information resulting from hazards analysis may identify other needs associated with warning systems;
public notification; health and medical services; law enforcement; public works; and procedures for exercising the plan
(see NRT-1, Chapters 4 and 5).
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materials plan must address each of these areas
of community response by delegating specific
responsibilities to appropriate agencies of the lo-
cal government. The plan also should include
assistance available from regional, State, and
Federal agencies as well as private industry and
volunteer organizations.
In addition to addressing emergency proce-
dures, the hazardous materials plan must also
address what equipment is needed to contain
and control hazardous materials spills and fires.
The plan must identify the equipment, its loca-
tion, how to get it to the incident scene, and how
to use it safely and effectively. The most impor-
tant specialized equipment that will be needed is
protective gear for the emergency responders.
This includes fully encapsulated chemical pro-
tective suits, thermal protection, and positive
pressure self-contained breathing apparatus. In
terms of equipment needed to stop a leak, spe-
cialized plugging and/or patching devices are
likely to be needed, unless the opening in the
damaged tank is too large to seal off. In order
to keep track of hazardous material concentra-
tion levels, specialized monitoring devices will
be needed. Monitoring is extremely important in
the case of methyl isocyanate due to its vapors
being odorless (but still highly dangerous) in low
concentrations. Specialized cleanup and neu-
tralizing materials (e.g., soda ash, caustic soda,
activated carbon, diatomaceous earth) likely will
be needed as well. Containment equipment
also must be available at the accident scene.
Materials (e.g., soil, sand) and heavy equip-
ment (e.g., bulldozers, back hoes, dump
trucks) likely will be used to construct dikes to
contain spilled material or contaminated runoff
from vapor knockdown and fire suppression op-
erations. The heavy equipment also will be
needed following the incident to remove con-
taminated soils and pavement. Lack of informa-
tion concerning these specialized resources
could make response efforts for a hazardous
materials release unnecessarily difficult.
4.4 Plan Reviews in the Context of Local Resource Needs
Title III requires each planning committee "to
evaluate the resources necessary to develop,
implement and exercise the emergency plan"
and to "make recommendations with respect to
additional resources that may be required and
the means for providing such additional re-
sources."
The NRT believes that it would be very useful to
have these resource evaluations and recom-
mendations available for the Regional Response
Teams (RRTs) at the time of the plan reviews.
Many of the suggested plan changes may be
rather modest and are not likely to require the
expenditure of significant local emergency plan-
ning committee (LEPC) resources. Other
changes may be more difficult to accomplish
and may require substantially more resources
than are available to the LEPC. RRT comments
may be more useful if the RRTs can formulate
them in a way that takes into consideration the
LEPC's resource base. RRTs may wish to iden-
tify those suggestions for improvement that
could be made with available resources and
those that might require additional resources.
LEPCs may include their resource requirements
in a separate section of their plans, provide in-
formation in a separate report or present re-
quirements in a formal request for additional re-
sources submitted to the cognizant State emer-
gency response commission (SERC) . Regard-
less of the method used, RRTs would be inter-
ested in information on:
the personnel resources required by the
LEPC in the preparation of the plan, includ-
ing man-months of effort, and technical
expertise provided and the additional re-
sources that the LEPC would like to have
available to revise and strengthen this
plan:
the financial resources required to develop
the plan and the financial resources that
the LEPC would like to have available in the
future:
the personnel and financial resources that
would be required to exercise the plan, as
proposed by the LEPC in the section on ex-
ercises: and
12/87
4-7
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the means by which the LEPC generated
the resources necessary to develop the
plan and the means by which the LEPC be-
lieves that the necessary additional re-
sources could be secured.
4.5 Use of Computerized Systems in Planning
Computerized systems have many applications
that would be useful to the LEPC as it incorpo-
rates hazards analysis information into a com-
prehensive emergency plan. They could be
used for:
Listing the facilities and the major transpor-
tation routes that handle or carry hazard-
ous substances through the planning dis-
trict and for storing and reporting chemical
and hazards analysis information. This
could facilitate data management associ-
ated with hazards identification.
Modelling the release of chemicals and es-
timating vulnerable zones (vulnerability
analysis). The system's capabilities could
be restricted to the simplified methods out-
lined in Chapters 2 and 3 or could include a
more sophisticated analysis. A further
level of sophistication which considers me-
teorological, topographical, and other site-
specific release scenario variables could
also be developed according to the level of
detail the local planning committee consid-
ers appropriate.
Identifying the regulatory requirements of
Title III as they relate to chemical emer-
gency preparedness.
In addition, computerized systems could be
used to provide emergency management and
response information. Appendix K provides an
evaluation guide in the form of a checklist for
hazardous chemical inventory, planning, and re-
sponse computerized systems. This checklist
was developed to assist local emergency plan-
ning groups in evaluating and selecting com-
puter systems and software that will have capa-
bilities relevant to their environmental manage-
ment and planning needs.
12/87
4-8
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APPENDIX A
ACRONYMS AND GLOSSARY OF TERMS
ACRONYMS
AAR/BOE
ACGIH
AlChE
AIHA
ATSDR
BLEVE
CAER
CAS
CEPP
CERCLA
CHLOREP
CHRIS
CMA
DOD
DOT
EEC
EEG
EEGL
EHS
EOP
EPA
ERPG
FDA
FEMA
FIFRA
FMEA
FMECA
FTA
HAZOP
Association of American Railroads/Bureau of Explosives
American Conference of Governmental Industrial Hygienists
American Institute of Chemical Engineers
American Industrial Hygiene Association
Agency for Toxic Substances and Disease Registry
Boiling Liquid Expanding Vapor Explosion
Community Awareness and Emergency Response (a CMA program)
Chemical Abstract Service
Chemical Emergency Preparedness Program (EPA)
Comprehensive Environmental Response, Compensation, and Liability Act of
1980 ("Superfund")
Chlorine Emergency Plan (developed by the Chlorine Institute)
Chemical Hazard Response Information System
Chemical Manufacturers Association
Department of Defense
Department of Transportation
European Economic Community
Emergency Exposure Guideline (developed by Dow Chemical)
Emergency Exposure Guidance Level (developed by the NRC)
Extremely Hazardous Substance
Emergency Operation Plan
Environmental Protection Agency
Emergency Response Planning Guideline
Food and Drug Administration
Federal Emergency Management Agency
Federal Insecticide, Fungicide, and Rodenticide Act
Failure Modes and Effects Analysis
Failure Modes, Effects, and Criticality Analysis
Fault Tree Analysis
Hazard and Operability Study
A-l
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HMTA
IDLH
LC50
LCLO
LD50
LDLO
LEPC
LEPD
LFA
LFB
LFM
LOG
MSDS
MAS
NCR
NFPA
NRC
NRT
NRT-1
NIOSH
OPP
OSC
OSHA
OSWER
PEL
PMN
PRA
QR
QS
RCRA
REL
RQ
RSPA
Hazardous Materials Transportation Act
Immediately Dangerous to Life or Health
Median Lethal Concentration
Lethal Concentration Low
Median Lethal Dose
Lethal Dose Low
Local Emergency Planning Committee
Local Emergency Planning District
Liquid Factor Ambient
Liquid Factor Boiling
Liquid Factor Molten
Level of Concern
Material Safety Data Sheet
National Academy of Sciences
National Oil and Hazardous Substances Contingency Plan
National Fire Protection Association
National Response Center or National Research Council
National Response Team
Hazardous Materials Emergency Planning Guide, prepared by the National
Response Team
National Institute for Occupational Safety and Health
Office of Pesticide Programs (EPA)
On-Scene Coordinator
Occupational Safety and Health Administration
Office of Solid Waste and Emergency Response (EPA)
Permissible Exposure Limit
Premanufacture Notice
Probabilistic Risk Assessment
Rate of Release of EHS to Air
Maximum Quantity of Chemical that Could Be Released
Resource Conservation and Recovery Act
Recommended Exposure Limits
Reportable Quantity
Research and Special Programs Administration (DOT)
A-2
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RRT Regional Response Team
RTECS Registry of Toxic Effects of Chemical Substances
SARA Superfund Amendments and Reauthorization Act of 1986
SERC State Emergency Response Commission
SPCC Spill Prevention Control and Countermeasures (Plan)
SPEGL Short-term Public Exposure Guidance Level (developed by the NRC)
Title III Emergency Planning and Community Right-to-Know Act of 1986 (Part of the
Superfund Amendments and Reauthorization Act of 1986)
TLVs* Threshold Limit Value
TWA Time Weighted Average
TPQ Threshold Planning Quantity
TSCA Toxic Substances Control Act
USCG United States Coast Guard
USGS United States Geological Survey
VP Vapor Pressure
VSD Virtually Safe Dose
Vz Vulnerable Zone
WB World Bank
TLVs is a registered trademark
A-3
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GLOSSARY OF TERMS
Accident Site
The location of an unexpected occurrence, failure, or loss, either at a facility or along a
transportation route, resulting in a release of hazardous materials: an incident site.
Acute
Severe but of short duration. Acute health effects are those that occur immediately after
exposure to hazardous chemicals.
Acutely Toxic Chemicals
Chemicals that can cause severe short- and long-term health effects after a single, brief
exposure (short duration). These chemicals (when ingested, inhaled, or absorbed through the
skin) can cause damage to living tissue, impairment of the central nervous system, severe
illness, or, in extreme cases, death.
Airborne Release
Release of any chemical into the air.
Ambient
Surrounding. Ambient temperatures are temperatures of the surrounding area (e.g., air or
water).
By-Product
Material, other than the principal product, that is produced or generated as a consequence of
an industrial process.
Chemical Process
A particular method of manufacturing or making a chemical, usually involving a number of
steps or operations.
Chronic
Of long duration or having frequent recurrence. Chronic health effects are those that become
apparent or continue for some time after exposure to hazardous chemicals.
Combustion Product
Material produced or generated during the burning or oxidation of a material,
Command Post
Facility located at a safe distance upwind from an accident site, where the on-scene
coordinator, responders, and technical representatives can make response decisions, deploy
manpower and equipment, maintain liaison with media, and handle communications.
Community Awareness and Emergency Response (CAER) Program
Program developed by the Chemical Manufacturers Association (CMA), to assist chemical
plant managers in taking the initiative in cooperating with local communities to develop
integrated (community/industry) plans for responding to releases of hazardous materials.
Contingency Plan
A document to identify and catalog the elements required to respond to an emergency, to
define responsibilities and specific tasks, and to serve as a response guide.
Critical Facilities
Facilities essential to emergency response, such as fire stations, police stations, hospitals,
and communication centers.
Decomposition Product
Material produced or generated as a result of the physical or chemical degradation of a parent
material.
A-4
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Dike
A barrier such as a low wall or embankment designed to prevent a spill from spreading or
flooding.
Disposal
The removal of waste material to a site or facility that is specifically designed and permitted to
receive such wastes.
Emergency
A situation created by an accidental release or spill of hazardous chemicals which poses a
threat to the safety of workers, residents, the environment, or property.
Evacuation
Removal of residents and other persons from an area of danger.
Exercise
A simulated accident or release set up to test emergency response methods and for use as a
training tool.
Extremely Hazardous Substances (EHSs)
A list of chemicals identified by EPA on the basis of toxicity, and listed under Title III of SARA.
These chemicals are listed in Appendix C. The list is subject to revision.
Facility
Defined for Section 302 of Title III of SARA as all buildings, equipment, structures, and other
stationary items which are located on a single site or on contiguous or adjacent sites and
which are owned or operated by the same person (or by any person which controls, is
controlled by, or under common control with, such person). For purposes of emergency
release notification, the term includes motor vehicles, rolling stock, and aircraft.
Facility Emergency Coordinator
Facility representative for each facility with an extremely hazardous substance (EHS) in a
quantity exceeding its threshold planning quantity (TPQ), who participates in the emergency
planning process.
Fenceline
Outermost perimeter of a facility property.
Hazard
Any situation that has the potential for causing damage to life, property, and/or the
environment.
Hazardous Chemical
Any chemical which is a physical hazard or a health hazard as defined under OSHA 29 CFR
1910.1201.
Hazardous Material
Any substance or material in a quantity or form which may be harmful to humans, animals,
crops, water systems, or other elements of the environment if accidentally released.
Hazardous materials include: explosives, gases (compressed, liquefied, or dissolved),
flammable and combustible liquids, flammable solids or substances, oxidizing substances,
poisonous and infectious substances, radioactive materials, and corrosives.
Hazardous Substances (Superfund)
Substances designated as hazardous under CERCLA (also known as Superfund); CERCLA
incorporates substances listed under the Clean Water Act, the Clean Air Act, RCRA, and TSCA
Section 7.
A-5
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Hazards Analysis
The procedure for identifying potential sources of a hazardous materials release, determining
the vulnerability of an area to a hazardous materials release, and comparing hazards to
determine risks to a community.
Hazards Identification
Provides information on which facilities have extremely hazardous substances (EHSs), what
those chemicals are, and how much there is at each facility. Also provides information on how
the chemicals are stored and whether they are used at high temperatures, Mandatory facility
reporting under Title III will provide most of the information needed for a hazards identification,
Immediately Dangerous to Life and Health (IDLH)
The maximum level to which a healthy worker can be exposed for 30 minutes and escape
without suffering irreversible health effects or escape-impairing symptoms,
Lethal
Causing or capable of causing death.
Lethal Concentration Low (LCLO)
The lowest concentration of a chemical at which some test animals died following inhalation
exposure.
Lethal Dose Low (LDLO)
The lowest dose of chemical at which some test animals died following exposure.
Level of Concern (LOC)
The concentration of an extremely hazardous substance (EHS) in the air above which there
may be serious irreversible health effects or death as a result of a single exposure for a
relatively short period of time.
Local Emergency Planning Committee (LEPC)
A committee appointed by the State emergency response commission (SERC), as required by
Title III of SARA, to formulate a comprehensive emergency plan for its district.
Material Safety Data Sheet (MSDS)
A compilation of information required under the OSHA Hazard Communication Standard on the
identity of hazardous chemicals, health and physical hazards, exposure limits, and
precautions. Section 311 of Title III of SARA requires facilities to submit MSDSs under certain
conditions.
Median Lethal Concentration (LC50)
Concentration level at which 50 percent of the test animals died when exposed by inhalation
for a specified time period.
Median Lethal Dose (LDSO)
Dose at which 50 percent of test animals died following exposure. Dose is usually given in
milligrams per kilogram of body weight of the test animal.
Morbidity
Ability to cause illness or disease.
National Response Center
A communications center for activities related to response actions: it is located at Coast
Gaurd headquarters in Washington, DC. The National Response Center receives and relays
notices of discharges or releases to the appropriate On-Scene Coordinator, disseminates
On-Scene Coordinator and Regional Response Team (RRT) reports to the National Response
Team (NRT) when appropriate, and provides facilities for the NRT to use in coordinating a
national response action when required. The toll-free number (800-424-8802, or
202-426-2675 or 202-267-2675 in the Washington, DC area) can be reached 24 hours a day
for reporting actual or potential pollution incidents.
A-6
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On-Scene Coordinator
The pre-designated local, State, or Federal official responsible for the coordination of a
hazardous materials response action, as outlined in the pertinent Emergency Response Plan.
Plume
Effluent cloud resulting from a continuous source release.
Radius of the Vulnerable Zone
The maximum distance from the point of release of a hazardous substance at which the
airborne concentration could reach the level of concern (LOG) under specified weather
conditions.
Reportable Quantity (RQ)
The quantity of a hazardous substance that triggers reporting under CERCLA; if a substance is
released in a quantity that exceeds its RQ, the release must be reported to the National
Response Center (NRC), as well as to the State emergency response commission (SERC) and
the community emergency coordinator for areas likely to be affected by the release.
Response
The efforts to minimize the risks created in an emergency by protecting the people, the
environment, and property, and the efforts to return the scene to normal pre-emergency
conditions.
Risk
A measure of the probability that damage to life, property, and/or the environment will occur if
a hazard manifests itself: this measure includes the severity of anticipated consequences to
people.
Risk Analysis
Assessment of the probable damage that may be caused to the community by a hazardous
substance release.
Special Populations
Groups of people that may be more susceptible than the general population (due to
preexisting health conditions (e.g., asthmatics) or age (e.g., infants and the elderly)) to the
toxic effects of an accidental release.
Spill Prevention Control and Countermeasures (SPCC) Plan
Plan covering the release of hazardous substances as defined under authority of the Clean
Water Act.
Stability Classes, Atmospheric
Pasquill stability classes (ranging from "A" to "F") are meteorological categories of
atmospheric conditions. Pasquill stability class A represents unstable conditions under which
there are strong sunlight, clear skies, and high levels of turbulence in the atmosphere,
conditions that promote rapid mixing and dispersal of airborne contaminants. At the other
extreme, class F represents light, steady winds, fairly clear nighttime skies, and low levels of
turbulence. Airborne contaminants mix and disperse far more slowly with air under these
conditions, and may travel further downwind at hazardous concentrations than in other cases.
Stability class D, midway between A and F, is used for neutral conditions, applicable to heavy
overcast, daytime or nighttime.
State Emergency Response Commission (SERC)
Commission appointed by each State governor according to the requirements of Title III of
SARA: duties of the commission include designating emergency planning districts, appointing
local emergency planning committees (LEPCs), supervising and coordinating the activities of
planning committees, reviewing emergency plans, receiving chemical release notifications, and
establishing procedures for receiving and processing requests from the public for information.
A-7
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Storage
Methods of keeping raw materials, finished goods, or products while awaiting use, shipment,
or consumption.
Threshold Planning Quantity (TPQ)
A quantity designated for each chemical on the list of extremely hazardous substances (EHSs)
that triggers notification by facilities of the State emergency response commission (SERC) that
such facilities are subject to emergency planning under Title III of SARA.
Toxic Chemical Release Form
Information form required to be submitted by facilities that manufacture, process, or use (in
quantities above a specified amount) chemicals listed in Section 313 of Title III of SARA.
Toxic Cloud
Airborne mass of gases, vapors, fumes, or aerosols of toxic materials.
Toxicity
The ability of a substance to cause damage to living tissue, impairment of the central nervous
system, severe illness, or death when ingested, inhaled, or absorbed by the skin.
Toxicology
The study of the adverse effects of chemical agents on biological systems.
Transfer
Loading and unloading of chemicals between transport vehicles and storage vessels, and
sending chemicals via pipes between storage vessels and process reactors.
Transport Mode
Method of transportation: highway: rail (trains); water (ships/barges); pipelines: air (planes).
Vapor Dispersion
The movement of vapor clouds or plumes in air due to wind, gravity spreading, and mixing.
Vulnerability Analysis
Assessment of elements in the community that are subject to damage should a hazardous
materials release occur; includes gathering information on the extent of the vulnerable zone,
conditions that influence the zone, size and type of the population within the zone, private and
public property that might be damaged, and the environment that might be affected.
Vulnerable Zone
An area over which the airborne concentration of a chemical involved in an accidental release
could reach the level of concern (LOG).
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APPENDIX B
THE CRITERIA USED TO IDENTIFY
EXTREMELY HAZARDOUS SUBSTANCES
B.1 BASIS FOR THE CRITERIA
Introduction. In an effort to direct community
planning efforts to those chemicals that, be-
cause of their inherent toxicity, are most likely to
cause severe toxic effects in humans who are
exposed to them due to an accidental release,
EPA has specified toxicity criteria that can be
used to screen chemical information sources
and to identify acutely toxic chemicals. These
criteria were used to identify the chemicals on
the list of extremely hazardous substances
(EHSs) required by Title III. While the criteria
focus on animal lethality data, EPA is also con-
cerned about a wide array of human toxic or
clinical effects other than death (e.g., lung
edema, liver or kidney damage, reproductive
and developmental toxicity, neurological disor-
ders, cardiac effects, dermal irritation and cor-
rosion, and ocular damage). Such effects may
be considered if suitable data are available when
the list of EHSs is revised.
Use of Animal Data. In defining criteria, EPA
had to identify the health effects of concern and
the data to be used. EPA elected to use animal
acute toxicity data derived from controlled ex-
periments to infer potential for acute toxic ef-
fects in humans. EPA has assumed that hu-
mans and animals (mammals) are similar, on
the average, in intrinsic susceptibility to toxic
chemicals and that animal data can be used as
surrogates for human data. This assumption is
one of the basic premises of modern toxicology
and is an important component in the regulation
of toxic chemicals. An additional benefit of us-
ing animal data is that there exists a large data
base that is accessible to the public and govern-
ment agencies such as EPA. Because human
populations are diverse (e.g., individuals differ
in age, health, and genetic background) and in-
dividuals are expected to vary considerably in
their sensitivity to chemical substances, EPA as-
sumed that humans are at least as sensitive to
each toxic chemical as the most sensitive animal
species tested.
Type of Toxicity Data Used. Complete toxico-
logical information on all potential concerns
about the consequences of an acute chemical
exposure is not available on all chemicals. EPA
initially focused on lethality, not only because
EPA wishes to avoid accidents resulting in hu-
man death, but also because lethality data are
the most available and commonly reported infor-
mation provided from animal toxicity testing.
EPA determined that the most appropriate ani-
mal test data to use as surrogates for human
acute toxicity are those data from animal acute
toxicity tests expressed as the median lethal
concentration (LC50) when the substance has
been administered by inhalation (via the lungs),
or the median lethal dose (LD50) when the sub-
stance has been administered orally (via the
mouth) or dermally (via the skin). These data
represent dose levels or concentrations of a
chemical that are expected to result in the death
of 50 percent of the test animals. Exposure to
EHSs released during an accident is expected
primarily to involve chemicals that are airborne.
Thus, the inhalation route of human exposure is
of primary concern during or following an acci-
dent. However, it should be borne in mind that
humans could be exposed to an EHS by any or
all of these routes after its accidental release. In
using data on oral and dermal acute lethality,
EPA was not specifically concerned with these
routes of exposure in humans, but rather with
identifying compounds with inherent high poten-
tial for acute toxicity.
Use of LDLO and LCLO Data. Even with the
amount of animal data that is available, there ex-
ist chemicals for which there are no standard
acute toxicity test data. In those cases where
toxicity testing has not determined an LD50 or
LC50 value, EPA selected an alternative meas-
ure of acute toxicity: the lowest dose or concen-
tration at which some animals died following ex-
posure (LDLO or LCLO). EPA used LDLO or
LCLO values in those instances where there are
no median toxicity values available for a chemi-
cal. Data from these tests may be more Vari-
able than those provided from median lethality
tests, but for the purposes of screening large
12/87
B-l
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numbers of chemicals it was deemed necessary
to provide a second level screening tool in pref-
erence to missing potentially toxic chemicals not
adequately tested. However, it is expected that
there are chemicals that may be acutely toxic,
but for which there are no toxicity test data avail-
able in the public literature. It is expected that
planners may obtain data that are not available
in the open literature from firms manufacturing
chemicals. By knowing whether chemical firms
and other facilities have any chemicals that are
on the list of EHSs or that meet the criteria, plan-
ners should be able to identify all potentially
acute toxicants used in their community,
B.2 THE CRITERIA
Criteria Values Adopted. EPA adopted the cri-
teria shown in Exhibit B-l to identify EHSs that
may present severe health hazards to humans
exposed to them during an accident or other
emergency. The specific values chosen are
consistent with toxicity values judged by the sci-
entific community as indicative of potential for
acute toxicity. The values shown in Exhibit B-l
are lower than those for highly toxic chemicals in
the health hazard definitions mandated by OSHA
in its Hazard Communication Standard (FR Vol.
48, No. 248, p. 53346).
A chemical was identified as an EHS if animal
test data with a value less than or equal to that
stated for the LD50 or LC50 criteria for any one
of three exposure routes were found. A chemi-
cal without LD50 or LC50 test data was evalu-
ated using the alternate LDLO or LCLO criteria.
EPA has prepared a list of chemicals that meet
these criteria: these chemicals are included on
the list of EHSs under Title III of SARA.
EPA Criteria Compared with European Eco-
nomic Community/World Bank Criteria. The
screening criteria selected by EPA were consis-
tent with internationally accepted criteria used
by both the European Economic Community
(EEC) and the World Bank (WB). EPA's criteria
recognized precedents set by these two organi-
zations; however, in a conservative effort to
avoid missing or excluding any potentially toxic
chemicals, EPA modified the basic toxic sub-
stances criteria used by these organizations in
three ways:
1. Lethality data are not limited to data on
rats, but include data on the most sensi-
tive mammalian species tested:
2. Data from tests with inhalation exposure
time up to 8 hours is accepted instead of
data from 4-hour exposure tests only:
and
3. LDLO and LCLO data are used when
LD50 or LC50 data are not available.
The criteria were designed to take maximum ad-
vantage of the kinds of animal data available for
screening and to limit the potential for overlook-
ing chemicals that may be potentially acutely
toxic. The criteria should maximize the potential
for planners to identify toxic chemicals.
8.3 APPLICATION OF THE CRITERIA
RTECS Data Base. The screening criteria can
be applied to any experimental data or data
base on chemical substances that includes
acute animal toxicity data. EPA applied the cri-
teria to a specific toxicity data repository, Regis-
try of Toxic Effects of Chemical Substances
(RTECS), maintained by the National Institute for
Occupational Safety and Health (NIOSH). The
RTECS data base was used as the source of tox-
icity data for identifying acutely toxic chemicals
because it has the largest computerized set of
acute toxicity information available, with informa-
tion on more than 79,000 chemicals. RTECS is
designed to be a single-source document for
basic toxicity information and other data. It is
widely accepted and used as a toxicity data
source, as indicated by the fact that some or-
ganizations (e.g., health agencies and chemical
companies) include RTECS numbers as a toxic-
ity reference on the lists of chemicals in their
files. While RTECS is not formally peer re-
viewed, the data presented are from scientific
literature that has been edited by the scientific
community before publication. In addition, the
RTECS Editorial Review Board is responsible for
reviewing a limited number of citations to re-
move ambiguities or errors. Them are limita-
tions associated with the use of the RTECS data
base, but for the purposes of screening acute
12/87
B-2
-------
Exhibit B-I
Criteria to Identify Extremely Hazardous Substances that
May Present Severe Health Hazards to Humans
Exposed During a Chemical Accident or Other Emergency
Route of
Exposure a
Acute Toxicity Measure
Value
Inhalation
Median Lethal Concentration
in Air (LC50)
Less than or equal to 0.5 milli-
grams per liter of air for
exposure time of 8 hours or less
Dermal
Oral
Median Lethal Dose (LD50)
Median Lethal Dose (LD50)
Less than or equal to 50
milligrams per kilogram of
body weight
Less than or equal to 25
milligrams per kilogram of
body weight
aThe route by which the test animals absorbed the chemical, i.e., by
breathing it in air (inhalation), by absorbing it through the skin
(dermal), or by ingestion (oral).
b LC50: The concentration of the chemical in air at which 50 percent of
the test animals died. LD50: The dose that killed 50 percent of the test
animals. In the absence of LC50 or LD50 data, LCLO or LDLO data should
be used. LCLO: Lethal Concentration Low, the lowest concentration in air
at which any test animals died. LDLO: Lethal Dose Low, the lowest dose
at which any test animals died.
B-3
-------
toxicity data, RTECS provides a large and easily
searchable data file. It is important to empha-
size that the purpose of the criteria was to pro-
vide a screening tool for the initial identification
of chemicals that may be acutely toxic to hu-
mans. Additional information on the toxicity of
specific chemicals may be available from the fa-
cility emergency coordinator.
TSCA Inventory, Active Pesticide Ingredients,
and PMN Chemicals. EPA selected only those
chemical substances in current production by
referring to the 1977 Toxic Substances Control
Act (TSCA) Inventory and the current EPA list of
active pesticide ingredients. The TSCA Inven-
tory is a list of chemical substances in produc-
tion at the time the Inventory was compiled.
Chemical substances entering commerce since
1977 through the Premanufacturing Notice
(PMN) review process under Section 5 of TSCA
were screened for acute toxicity data and com-
pared to the criteria for possible inclusion on the
list.
Radioactive materials, chemical substances in
research and development stages, and those
manufactured, processed, or distributed in com-
merce for use as food, food additives, drugs, or
cosmetics are not listed in the TSCA Inventory
and, hence, were not considered. If research
chemicals that meet the criteria are produced
for commercial use under TSCA or for pesticide
use under the Federal Insecticide, Fungicide,
and Rodenticide Act (FIFRA), EPA will identify
such chemicals through its PMN review program
and pesticide registration program and list them
under future rulemakings.
8.4 OTHER EXTREMELY HAZARDOUS SUB-
STANCES
Chemicals that do not meet the criteria for acute
toxicity discussed in the previous section are not
necessarily safe. In fact, some are toxic to hu-
mans and may pose threats to the community if
accidents occur. EPA identified and included on
the list of EHSs some of these chemicals using
criteria based on the following factors: large vol-
ume production, acute lethality values, and
known risk, as indicated by the fact that some of
the chemicals have caused death and injury in
accidents.
Candidates for listing were identified from the
high-production capacity chemicals listed in the
SRI International publication, 1985 Directory of
Chemical Producers, United States of America,
pp. 388-389, or from the World Bank List Group
B: Other Toxic Substances. The toxicity criteria
shown in Exhibit B-2 were used to aid in deciding
which chemicals to list. In addition to high-pro-
duction chemicals meeting these criteria, sev-
eral other slightly less toxic chemicals were
listed because of their known hazards: for exam-
ple, several of them have caused death or injury
in accidents. Exhibit B-3 lists these other
chemicals included on the list of EHSs.
B-4
-------
Exhibit B-2
Criteria to Identify Other Hazardous Substances Produced in Large
Quantities that May Present Severe Health Hazards to Humans
Exposed During a Chemical Accident or Other Emergency
Route of
Exposure a Acute Toxicity Measure D Value
Inhalation Median Lethal Concentration Less than or equal to 2 milli-
in Air (LC50) grams per liter of air for
exposure time of 8 hours or less
Dermal Median Lethal Dose (LD50) Less than or equal to 400
milligrams per kilogram of
body weight
Oral Median Lethal Dose (LD50) Less than or equal to 200
milligrams per kilogram of
body weight
aThe route by which the test animals absorbed the chemical, i.e., by
breathing it in air (inhalation), by absorbing it through the skin
(dermal), or by ingestion (oral).
b LC50: The concentration of the chemical in air at which 50 percent of
the test animals died. LD50: The dose that killed 50 percent of the test
animals. In the absence of LEO or LD50 data, LCLO or LDLO data should
be used. LCLO: Lethal Concentration Low, the lowest concentration in air
at which any test animals died. LDLO: Lethal Dose Low, the lowest dose
at which any test animals died.
B-5
-------
Exhibit B-3
Other Extremely Hazardous Substances
Chemicals on the following list were judged to be extremely hazardous substances (EHSs) on the
basis of high production capacity and the criteria summarized in Exhibit B-2 or known
hazards (see Section 8.4).
Name
CAS Number
Acrylamide 79-06-1
Acrylonitrile 107-13-1
Adiponitrile 111-69-3
Ammonia 7664-41-7
Aniline 62-53-3
Bromine 7726-95-6
Carbon disulfide 75-15-0
Chloroform 67-66-3
Cyclohexylamine 108-91-8
Epichlorohydrin 106-89-8
Ethylene oxide 75-21-8
Formaldehyde 50-00-0
Hydrogen chloride (gas only) 7647-01-0
' Hydrogen peroxide 7722-84-1
Hydrogen sulfide 7783-06-4
Hydroquinone 123-31-9
Methyl bromide 74-83-9
Nitrobenzene 98-95-3
Phosgene 75-44-5
Propylene oxide 75-56-9
Sulfur dioxide 7446-09-5
Tetramethyl lead 75-74-1
Vinyl acetate monomer 108-05-4
Concentration greater than 52 percent.
B-6
-------
APPENDIX C
THE LIST OF EXTREMELY HAZARDOUS SUBSTANCES
EPA identified chemicals that meet the criteria
for extremely hazardous substances (EHSs) dis-
cussed in Section B.2. In addition, other chemi-
cals were identified as EHSs as described in
Section B.4. The chemicals are listed by their
common names and also by their Chemical Ab-
stract Service (CAS) numbers. While a chemical
may be known by several different names, the
CAS number provides a unique and unambigu-
ous identification. The list of EHSs is presented
in the following forms:
Exhibit C-1 : List of common names, in al-
phabetical order, with CAS number, ambi-
ent physical state, molecular weight, boil-
ing point, vapor pressure, level of concern
(LOG), and liquid factors,
Exhibit C-2: Same list as that in Exhibit
C-1, in CAS number order.
Note that the value for the LOG given in these
Exhibits is one tenth the Immediately Dangerous
to Life and Health (IDLH) level or an estimation
of that level for chemicals which do not have a
specific IDLH assigned to them. Refer to Appen-
dix D for a more detailed discussion of the LOG
and other values that planners may wish to use.
12/87
C-l
-------
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Analysis
(Alphabetical Order)
00
~-l
CAS * Chemical Name
75-86-5 Acetone Cyanohydrin
1752-30-3 Acetone Thiosemicarbazide
107-02-8 Acrolein
79-06-1 Acrylamide
107-13-1 Acrylonitrile
8U-68-6 Acrylyl Chloride
111-69-3 Adiponitrile
116-06-3 Aldicarb
309-00-2 Aldrin
107-18-6 Allyl Alcohol
107-11-9 Allylamine
20859-73-8 Aluminum Phosphide
54-62-6 Aminopterin
78-53-5 Ami ton
3734-97-2 Ami ton Oxalate
7664-41-7 Ammonia
16919-58-7 Ammonium Chloroplatinate
300-62-9 Amphetamine
62-53-3 Aniline
88-05-1 Aniline, 2,4,6-Trimethyl-
7783-70-2 Antimony Pentaf luoride
1397-94-0 Antimycin A
O 86-88-4 ANTU
K> 1303-28-2 Arsenic Pentoxide
1327-53-3 Arsenous Oxide
7784-34-1 Arsenous Trichloride
7784-42-1 Arsine
2642-71-9 Azinphos-Ethyl
86-50-0 Azinphos-Methyl
98-87-3 Benzal Chloride
98-16-8 Benzenamine, 3-(Trif luoromethyl)-
100-14-1 Benzene. 1-(Chloromethyl)-4-Nitro-
98-05-5 Benzenearsonic Acid
98-09-9 Benzenesulfonyl Chloride
3615-21-2 Benzimidazole, 4,5-Dichloro-2-
(Trifluoromethyl)-
98-07-7 Benzol ri chloride
100-44-7 Benzyl Chloride
140-29-4 Benzyl Cyanide
15271-41-7 Bicyclo[2.2.1]Heptane-2-Carbonitrile,
5-Chloro-6-((((Methylamino)Carbonyl)
Oxy)Imino)-, (1S-(1-alpha,2-beta,
4-alpha.5-alpha,6E))-
534-07-6 Bis(Chloromethyl) Ketone
4044-65-9 Bitoscanate
10294-34-5 Boron Trichloride
7637-07-2 Boron Trifluoride
353-42-4 Boron Trifluoride Compound with
Methyl Ether (1:1)
28772-56-7 Bromadiolone
7726-95-6 Bromine
106-99-0 Butadiene
Physical Molecular
State Weight
Liquid
Solid
Liquid
Solid
Liquid
Liquid
Liquid
Solid
Solid
Liquid
Liquid
Solid
Solid
Liquid
Solid
Gas
Sol id
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Solid
Solid
Liquid
Gas
Solid
Solid
Liquid
Liquid
Solid
Solid
Liquid
Solid
Liquid
Liquid
Liquid
Solid
Solid
Solid
Gas
Gas
Liquid
Solid
Liquid
Gas
85
131
56
71
54
91
108
190
365
58
57
58
440
269
359
17
444
135
93
135
217
549
202
230
198
181
78
345
317
161
161
172
202
177
255
195
127
117
242
127
192
117
68
114
527
160
54
Boiling Vapor Pressure
Point a 25 C
(oC) (mm Hg)
200
52.5
250
77.3
75
295
287
145
97
55
320
330
-33.4
200
184
232
141
400
465
130.21
-62
400
400
205
187.5
230
251
220.8
179
233.5
173
290
13
-127
126
60
-4.4
0.50
0.00001
220.0
0.007
115.0
300.0
0.001
0.50
0.000006
23.8
500.0
0.00001
0.00001
0.000001
0.00001
0.00001
0.90
0.67
0.10
7.0
0.00001
0.000001
0.00001
0.0000001
10.0
0.0000002
0.0000001
1.0
1.0
0.05
0.00001
0.03
1.0
1.0
1.0
0.00001
1.0
0.0001
20.0
0.00001
172.0
Level of
Concern
(gm/m3)
0.012
0.1
0.0011
0.11
0.11
0.0009
0.017
0.0003
0.01
0.036
0.0032
0.02
0.025
0.0033
0.003
0.035
0.00044
0.02
0.038
0.0029
0.0027
0.0018
0.01
0.008
0.0014
0.01
0.0019
0.0039
0.0007
0.0023
0.0044
0.028
0.00027
0.2
0.013
0.0007
0.0052
0.0043
0.019
0.00027
0.02
0.01
0.028
0.023
0.001
0.0065
4.43
Liquid Factor Liquid Factor
Ambient Boiling
LFA LFB
0.00002
0.007
0.004
0.01
0.00000005
0.0008
0.02
0.00000000009
0.00005
0.00003
0.000006
0.0006
0.0007
0.00007
0.00007
0.000002
0.00007
0.00006
0.00005
0.001
0.01
0.02
0.02
0.02
0.03
0.02
0.02
0.02
0.03
0.03
0.02
0.03
0.04
0.04
0.03
0.03
0.03
0.03
0.03
0.02
0.03
0.04
Liquid Factor
Molten
LFM
0.00004
0.00004
0.02
0.00009
0.001
0.00000000003
0.000000003
0.00008
0.0002
0.0002
-------
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Analysis
(Alphabetical Order)
I
u>
CAS * Chemical Name
109-19-3 Butyl Isovalerate
111-34-2 Butyl Vinyl Ether
1306-19-0 Cadmium Oxide
2223-93-0 Cadmium Stearate
7778-44-1 Calcium Arsenate
8001-35-2 Camphechlor
56-25-7 Cant bar i din
51-83-2 Carbachol Chloride
26419-73-8 Carbamic Acid, Methyl-, 0-(((2,4-
Oimethyl-1,3-Dithiolan-2-tl)
Methylene)Amino)-
1563-66-2 Carbofuran
75-15-0 Carbon Disulfide
786-19-6 Carbophenothion
2244-16-8 Carvone
57-74-9 Chlordane
470-90-6 Chlorfenvinfos
7782-50-5 Chlorine
24934-91-6 Chlormephos
999-81-5 Chlorroequat Chloride
107-20-0 Chi oroacet aldehyde
79-11-8 Chi oroacet ic Acid
107-07-3 Chloroethanol
627-11-2 Chloroethyl Chloroformate
67-66-3 Chloroform
542-88-1 Chloromethyl Ether
107-30-2 Chloromethyl Methyl Ether
3691-35-8 Chtorophacinone
1982-47-4 Chloroxuron
21923-23-9 Chlorthiophos
10025-73-7 Chromic Chloride
7440-48-4 Cobalt
10210-68-1 Cobalt Car bony I
62207-76-5 Cobalt, ((2. 2' -(1 ,2-Ethanediylbis
(Nitrilomethylidine))Bis(6-Fluoro
Phenol8to))(2->-N,N',0,0'>-
64-86-8 Colchicine
117-52-2 Coumafuryl
56-72-4 Coumaphos
5836-29-3 Coumatetralyl
95-48-7 Cresol, o-
535-89-7 Crimidine
4170-30-3 Crotonaldehyde
123-73-9 Crotonaldehyde, (E)-
506-68-3 Cyanogen Bromide
506-78-5 Cyanogen Iodide
2636-26-2 Cyanophos
675-14-9 Cyanuric Fluoride
66-81-9 Cycloheximide
108-91-8 Cyclohexylamine
287-92-3 Cyclopentane
633-03-4 C. I. Basic Green 1
Physical Molecular
State Weight
Liquid
Liquid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Liquid
Liquid
Liquid
Liquid
Liquid
Gas
Liquid
Solid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Liquid
Solid
Solid
Solid
Solid
Solid
Sol id
Solid
Solid
Solid
Solid
Liquid
Liquid
Solid
Solid
Liquid
Liquid
Solid
Liquid
Liquid
Solid
158
100
128
681
398
414
196
183
234
221
76
343
150
410
360
71
235
158
78.5
95
81
143
119
115
81
375
291
361
158
59
342
361
399
298
363
292
108
172
70
70
106
153
243
135
281
99
70
483
Boiling Vapor Pressure
Point a 25 C
(oC) (mm Kg)
175.5
94
1559 S
D
110 S
400
360
46.5
350
230
400
390
-34.6
295
85
189
128
155.7
61.7
106
59
400
1300 S
2870
52 D
407
191
300
104
104
61.4
45 S
350
73
245
134.5
49
0.45
50
0.00001
0.00001
0.00001
0.4
0.02
0.00001
0.0000006
0.00001
360.0
0.0000003
0.04
0.00001
0.000004
0.0056
0.00001
100
0.5
5.0
9.0
160.0
30.0
224
0.00001
0.0000001
0.0004
0.00001
0.00001
0.1
0.00001
0.00001
0.00001
0.0000001
0.00001
0.5
0.00001
36
36
92
1
0.0008
120
0.006
10
317
0.00001
Level of
Concern
(gm/m3)
8.2
0.62
0.004
0.0013
0.01
0.02
0.0043
0.015
0.001
0.00043
0.16
0.0068
0.0037
0.05
0.01
0.0073
0.007
0.007
0.069
0.0018
0.0033
0.02
0.49
0.00025
0.0018
0.001
0.01
0.0078
0.00005
0.002
0.00027
0.003
0.0009
4
0.003
0.0165
0.11
0.0012
0.04
0.04
0.044
0.18
0.025
0.00017
0.002
0.16
11
0.25
Liquid Factor Liquid Factor Liquid Factor
Ambient Boiling Molten
LFA LFB LFM
0.00003
0.002
0.01
0.00000000003
0.000002
0.000000001
0.0000000004
0.0000005
0.004
0.0002
0.0005
0.009
0.002
0.009
0.00000004
0.001
0.001
0.00000007
0.007
0.0005
0.01
0.03
0.03
0.03
0.04
0.03
0.04
0.04
0.03
0.03
0.02
0.03
0.04
0.03
0.03
0.04
0.02
0.02
0.03
0.04
0.03
0.03
0.000004
0.003
0.02
0.000004
0.00005
0.0002
0.003
0.000000001
0.07
0.00001
0.00003
0.00001
0.02
0.02
0.0008
-------
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Analysis
(Alphabetical Order)
to
00
CAS * Chemical Name
17702-41-9 Decaborane(14)
8065-48-3 Demeton
919-86-8 Demeton-S-Methyl
10311-84-9 Oialifor
19287-45-7 Diborane
8023-53-8 Dichlorobenzalkonium Chloride
111-44-4 Dichloroethyl Ether
149-74-6 Dichloromethylphenylsilane
62-73-7 Dichlorvos
141-66-2 Dicrotophos
1464-53-5 Diepoxybutane
814-49-3 Di ethyl Chlorophosphate
1642-54-2 Diefhylcarbamazine Citrate
93-05-0 Diethyl-p-Phenylenediamine
71-63-6 Digitoxin
2238-07-5 Diglycidyl Ether
20830-75-5 Digoxin
115-26-4 Dimefox
60-51-5 Dimethoate
2524-03-0 Dimethyl Phosphorochloridothioate
77-78-1 Dimethyl Sulfate
_ 75-18-3 Dimethyl Sulfide
V 75-78-5 Dimethyldichlorosilane
*. 57-14-7 Dimethylhydrazine
99-98-9 Dimethyl-p-Phenylenediamine
644-64-4 Dimetilan
534-52-1 Dinitrocresol
88-85-7 Dinoseb
1420-07-1 Dinoterb
78-34-2 Dioxathion
*646-06-0 Dioxolane
82-66-6 Diphacinone
152-16-9 Diphosphoramide, Octamethyl-
298-04-4 Oisulfoton
514-73-8 Dithiazanine Iodide
541-53-7 Dithiobiuret
316-42-7 Emetine, Dihydrochloride
115-29-7 Endosulfan
2778-04-3 Endothion
72-20-8 Endrin
106-89-8 Epichlorohydrin
2104-64-5 EPN
50-14-6 Ergocalciferol
379-79-3 Ergotamine Tartrate
1622-32-8 Ethanesulfonyl Chloride, 2-Chloro-
10140-87-1 Ethanol, 1,2-Dichloro-, Acetate
563-12-2 Ethion
13194-48-4 Ethoprophos
538-07-8 EthylbiB(2-Chloroethyl)Amine
371-62-0 Ethylene Fluorohydrin
75-21-8 Ethylene Oxide
107-15-3 Ethylenediamine
Physical Molecular
State Weight
Solid
Liquid
Liquid
Solid
Gas
Sol id
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Solid
Liquid
Sol id
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Liquid
Sol id
Sol id
Sol id
Sol id
Solid
Liquid
Liquid
Solid
Liquid
Liquid
Solid
Solid
Sol id
Solid
Solid
Solid
Liquid
Sol id
Solid
Solid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Gas
Liquid
122
258
230
394
28
423
143
191
221
237
86
173
391
164
765
130
781
154
229
161
126
62
129
60
136
240
198
240
240
457
74
340
286
274
520
135
554
407
280
381
93
323
397
1314
163
157
384
242
170
64
44
60
Boiling Vapor Pressure
Point a 25 C
(oC)
0.01
0.002
0.005
0.005
0.005
0.32
0.15
0.02
0.02
0.0009
0.0035
0.008
0.003
1.25
0.00018
0.045
0.0002
0.001
0.03
0.0032
0.005
0.0003
0.003
0.012
0.00013
0.025
0.0005
0.0045
0.025
0.0034
0.21
0.0009
0.0008
0.002
0.02
0.005
0.00001
0.0008
0.017
0.02
0.038
0.005
0.04
0.01
0.0025
0.011
0.013
0.026
0.0075
0.00007
0.14
0.49
Liquid Factor Liquid Factor
Ambient Boiling
LFA LFB
0.00000002
0.000000008
0.00004
0.00003
0.0000008
0.0000000008
0.0007
0.00001
0.000001
0.000005
0.00002
0.00006
0.000006
0.02
0.008
0.005
0.000001
0.003
0.0000001
0.00000002
0.0007
0.00004
0.00000006
0.0000000002
0.00000003
0.00002
0.002
0.0005
0.03
0.03
0.03
0.03
0.03
0.03
0.02
0.03
0.03
0.02
0.03
0.03
0.03
0.02
0.04
0.02
0.06
0.02
0.04
0.03
0.03
0.03
0.03
0.09
0.03
0.03
0.02
0.02
Liquid Factor
Molten
LFM
0.0006
0.000001
0.000005
0.00000004
0.000007
0.000000002
0.000000000007
-------
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Analysis
(Alphabetical Order)
CAS * Chemical Name
151-56-4 Ethyleneiffline
2235-25-8 Ethylmercuric Phosphate
542-90-5 Ethylthiocyanate
22224-92-6 Fenamiphos
122-14-5 Fenitrothion
115-90-2 Fensulfothion
4301-50-2 Fluenetil
7782-41-4 Fluorine
640-19-7 Ftuoroacetamide
144-49-0 Fluoroacetic Acid
359-06-8 Fluoroacetyl Chloride
51-21-8 Fluorouracil
944-22-9 Fonofos
50-00-0 Formaldehyde
107-16-4 Formaldehyde Cyanohydrin
23422-53-9 Formetanate Hydrochloride
2540-82-1 Formothion
17702-57-7 Formparanate
21548-32-3 Fosthietan
3878-19-1 Fuberidazole
110-00-9 Furan
13450-90-3 Gallium Trichloride
77-47-4 Hexachlorocyclopentadiene
1335-87-1 Hexachloronaphthalene
4835-11-4 Hexamethylenediamine, N.N'-Dibutyl-
302-01-2 Hydrazine
74-90-8 Hydrocyanic Acid
7647-01-0 Hydrogen Chloride (Gas Only)
7664-39-3 Hydrogen Fluoride
7722-84-1 Hydrogen Peroxide (Cone > 52X)
7783-07-5 Hydrogen Selenide
7783-06-4 Hydrogen Sulfide
123-31-9 Hydroquinone
53-86-1 Indomethacin
10025-97-5 Iridium Tetrachloride
13463-40-6 Iron, Pentacarbonyl-
297-78-9 Isobenzan
78-82-0 Isobutyronitrile
102-36-3 Isocyanic Acid,3,4-Dichlorophenyl Ester
465-73-6 Isodrin
55-91-4 Isofluorphate
4098-71-9 Isophorone Diisocyanate
108-23-6 Isopropyl Chloroformate
625-55-8 Isopropyl Formate
119-38-0 Isopropylmethylpyrazolyl
Dimethylcarbamate
78-97-7 Lactonitrile
21609-90-5 Leptopho*
541-25-3 LewUite
58-89-9 Lindan*
7580-67-8 Lithiua Hydride
109-77-3 Malononitrile
Physical Molecular
State
Liquid
Solid
Liquid
Solid
Liquid
Liquid
Solid
Gas
Solid
Solid
Liquid
Solid
Liquid
Gas
Liquid
Solid
Liquid
Solid
Liquid
Solid
Liquid
Solid
Liquid
Solid
Liquid
Liquid
Gas
Gas
Gas
Liquid
Gas
Gas
Solid
Solid
Sol id
Liquid
Solid
Liquid
Sol id
Solid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Solid
Boiling Vapor Pressure
:ular
Iht
43
327
87
303
277
308
258
38
77
78
96
130
246
30
57
258
257
235
241
184
68
176
273
335
228
32
27
36
20
34
81
34
110
358
334
196
412
69
188
365
184
222
123
88
211
71
412
207
291
8
66
Point
(oC)
55
146
450
370
440
-188
250
165
73
361
380
-19
183
440
250
385
250
32
201.3
239
270
205
113.5
25.7
-85
19.4
152
-41
-60
285
103
103.8
240
344
185
360
104.6
68.2
295
182
380
190
323.4 D
218
a 25 c
(mn Hg)
207
0.00001
4
0.0000001
0.000006
0.00000001
0.0000025
0.001
2
80
0.00001
0.00021
1.8
0.0000001
0.0000085
0.0000025
0.0000065
0.00001
700
0.2
0.08
0.003
0.0004
14.4
5
0.001
0.00001
0.00001
40
0.00001
50
0.02
0.00001
0.58
0.00001
50
100
0.001
1.7
0.000002
0.395
0.0000094
0.00001
0.08
Level of
Concern
(gm/m3)
0.004
0.001
0.1
0.0009
0.0038
0.002
0.006
0.039
0.0058
0.00047
0.01
0.019
0.0013
0.012
0.006
0.018
0.00027
0.0072
0.0047
0.0033
0.0012
0.032
0.0002
0.0002
0.0022
0.01
0.0055
0.015
0.0016
0.01
0.00066
0.042
0.02
0.0024
0.0047
0.0008 a
0.001
0.025
0.014
0.007
0.0036
0.00123
0.1
0.0014
0.0056
0.018
0.03
0.0047
0.1
0.005
0.019
Liquid Factor Liquid Factor
Ambient
LFA
0.006
0.0002
0.0000000006
0.000000000001
0.004
0.00000002
0.00006
0.0000000008
0.0000000006
0.03
0.000007
0.00000003
0.0003
0.0001
0.003
0.002
0.00004
0.003
0.004
0.00000008
0.00006
0.00003
Boiling
LFB
0.02
0.02
0.03
0.03
0.03
0.03
0.02
0.04
0.04
0.03
0.04
0.04
0.01
0.01
0.04
0.02
0.03
0.03
0.03
0.03
0.«2
0.04
Liquid Factor
Molten
LFM
0.0000000000001
0.0000007
0.0002
0.0001
0.004
0.00003
0.0000003
0.0004
0.0008
0.000009
0.004
0.000000006
0.000000009
0.00004
0.000005
-------
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Analysis
(Alphabetical Order)
OO
-J
CAS * Chemical Name
12108-13-3 Manganese, Tricarbonyl
Methylcyclopentadienyl
51-75-2 Mechlorethamine
950-10-7 Mephosfolan
1600-27-7 Mercuric Acetate
7487-94-7 Mercuric Chloride
21908-53-2 Mercuric Oxide
108-67-8 Mesitylene
10476-95-6 Methacrolein Diacetate
760-93-0 Methacrylic Anhydride
126-98-7 Methacrylonitrile
920-46-7 Methacryloyl Chloride
30674-80-7 Methacryloyloxyethyl Isocyanate
10265-92-6 Methamidophos
558-25-8 Methanesulfonyl Fluoride
950-37-8 Methidathion
2032-65-7 Methiocarb
16752-77-5 Methomyl
151-38-2 Methoxyethylmercuric Acetate
80-63-7 Methyl 2-Chloroacrylate
74-83-9 Methyl Bromide
-. 79-22-1 Methyl Chloroformate
V 624-92-0 Methyl Disulfide
ox 60-34-4 Methyl Hydrazine
624-83-9 Methyl Isocyanate
556-61-6 Methyl Isothiocyanate
74-93-1 Methyl Mercaptan
3735-23-7 Methyl Phenkapton
676-97-1 Methyl Phosphonic Dichloride
556-64-9 Methyl Thiocyanate
78-94-4 Methyl Vinyl Ketone
502-39-6 Methylmercuric Dicyanamide
75-79-6 Methyltrichlorosilane
1129-41-5 Metolcarb
7786-34-7 Mevinphos
315-18-4 Mexacarbate
50-07-7 Mitomycin C
6923-22-4 Monocrotophos
*2763-96-4 Muscimol
505-60-2 Mustard Gas
7440-02-0 Nickel
13463-39-3 Nickel Carbonyl
54-11-5 Nicotine
65-30-5 Nicotine Sulfate
7697-37-2 Nitric Acid
10102-43-9 Nitric Oxide
98-95-3 Nitrobenzene
1122-60-7 Nitrocyclohexene
10102-44-0 Nitrogen Dioxide
62-75-9 Nitrosodimethylamine
991-42-4 Norbormide
0 Organorhodium Complex (PMN-82-147)
Physical Molecular
State Weight
Liquid
Liquid
Liquid
Solid
Solid
Solid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Sol id
Solid
Liquid
Gas
Liquid
Liquid
Liquid
Liquid
Solid
Gas
Liquid
Solid
Liquid
Liquid
Solid
Liquid
Solid
Liquid
Solid
Solid
Solid
Solid
Liquid
Solid
Liquid
Liquid
Solid
Liquid
Gas
Liquid
Liquid
Gas
Liquid
Solid
Solid
218
156
269
319
272
217
120
172
154
67
105
155
141
98
302
225
162
319
121
95
95
94
46
57
73
48
349
133
73
70
299
149
165
224
222
334
223
114
159
59
171
162
423
63
30
123
129
46
74
512
Boiling Vapor Pressure
Point 9 25 C
(oC) (nm Hg)
232
200
410
302
165
191
240
90.3
96
74
D
124
325
335
140
3.6
71
109.7
87.5
39
119
6.2
400
163
130
81.4
67
360
280
534
430
215
2732
43
246.7
83
-151
210.8
205.5
21.15
151
0.1
0.6
1.0000000E-10
0.00001
0.0004
0.00001
1.8
0.35
0.01
90
40
80
0.0003
10
0.000001
0.0001
0.00005
0.00001
12
210
28.6
49.6
348
15
0.0000035
1
20
160
0.00003
280
0.00001
0.0029
0.000002
0.00001
0.000007
0.00001
0.09
0.00001
400
0.04
0.00001
47.8
0.005
0.35
8
0.00001
Level of
Concern
(gm/m3)
0.0006
0.029
0.009
0.024
0.03
0.016
0.24
0.044
0.0045
0.003 a
0.0006
0.00027
0.0075
0.014
0.02
0.015
0.01
0.025
0.005
0.78
0.0018
0.0001
0.00094
0.0047
0.033
0.079
0.011
0.0014
0.085
0.00007
0.02
0.0018
0.0048
0.004
0.014
0.023
0.00063
0.017
0.001
0.05
0.00035 a
0.0035
0.009
0.026
0.03 a
0.1
0.0015
0.0094
0.019
0.0038
0.0008
Liquid Factor Liquid Factor
Ambient Boiling
LFA LFB
0.000008
0.00004
0.000000000000009
0.0001
0.00002
0.0000006
0.003
0.002
0.005
0.0005
0.0006
0.01
0.001
0.001
0.01
0.0000000004
0.0008
0.006
0.02
0.0000002
0.000006
0.03
0.000003
0.002
0.0000003
0.00002
0.0003
0.04
0.03
0.03
0.03
0.03
0.03
0.02
0.03
0.04
0.03
0.03
0.03
0.03
0.02
0.02
0.04
0.02
0.02
0.04
0.03
0.03
0.05
0.03
0.02
0.03
0.03
0.02
Liquid Factor
Molten
LFH
0.02
0.00000006
0.0000000003
0.00003
0.0000002
0.0009
0.0002
0.0001
0.00000003
0.00000003
0.0008
0.000000000002
0.0000001
-------
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Anal/sis
(Alphabetical Order)
00
-J
CAS * Chemical Name
65-86-1 Orotic Acid
20816-12-0 Osmium Tetroxide
630-60-4 Ouabain
23135-22-0 Oxamyl
78-71-7 Oxetane, 3.3-Bis(Chloromethyt)-
2497-07-6 Oxydisulfoton
10028-15-6 Ozone
1910-42-5 Paraquat
2074-50-2 Paraquat Met hosul fate
56-38-2 Para th ion
298-00-0 Parath ion-Methyl
12002-03-8 Paris Green
19624-22-7 Pentaborane
76-01-7 Pentachloroethane
87-86-5 Pentachlorophenol
2570-26-5 Pentadecylamine
79-21-0 Peracetic Acid
594-42-3 Perch toromethylmercaptan
108-95-2 Phenol
97-18-7 Phenol, 2.2'-Thiobis(4,6-Oichloro)-
4418-66-0 Phenol, 2,2' -Thiobis(4-Chloro-6-Methyl)-
64-00-6 Phenol, 3-(1-Methylethyl)-,
^ Methylcarbamate
<, 58-36-6 Phenoxarsine, 10,10'-0xydi-
696-28-6 Phenyl Dichloroarsine
59-88-1 Phenylhydrazine Hydrochloride
62-38-4 Phenylmercury Acetate
2097-19-0 Phenyl si latrane
103-85-5 Phenylthiourea
298-02-2 Phorate
4104-14-7 Phosacetim
947-02-4 Phosfolan
75-44-5 Phosgene
732-11-6 Phosmet
13171-21-6 Phosphamidon
7803-51-2 Phosphine
2703-13-1 Phosphonothioic Acid, Methyl-, 0-Ethyl
0-(4-(Methylthio)Phenyl) Ester
50782-69-9 Phosphonothioic Acid, Methyl-. S-(2-
(8is(1 -Methylethyl )Amino)Ethyl )
0-Ethyl Ester
2665-30-7 Phosphonothioic Acid, Methyl-, 0-
(4-Nitrophenyl) 0-Phenyl Ester
3254-63-5 Phosphoric Acid, Dimethyl 4-
(Methylthio) Phenyl Ester
2587-90-8 Phosphorothioic Acid. 0,0-Dimethyl-S-
(2-Methylthio) Ethyl Ester
7723-14-0 Phosphorus
10025-87-3 Phosphorus Oxychloride
10026-13-8 Phosphorus Pentachloride
1314-56-3 Phosphorus Pent oxide
7719-12-2 Phosphorus Trichloride
Physical Molecular
State Weight
Solid
Sol id
Solid
Solid
Liquid
Liquid
Gas
Solid
Solid
Liquid
Solid
Solid
Liquid
Liquid
Solid
Solid
Liquid
Liquid
Solid
Sol id
Solid
Solid
Solid
Liquid
Solid
Solid
Solid
Sol id
Liquid
Solid
Solid
Gas
Solid
Liquid
Gas
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Liquid
156
254
585
219
155
274
48
257
408
291
263
1014
63
202
266
227
76
186
94
356
315
193
502
223
145
337
251
152
260
375
255
99
317
300
34
262
267
309
248
216
31
153
208
142
137
Boiling Vapor Pressure
Point a 25 C
(oC) (mm Hg)
130
310
200
330
-111
375
D
60
161
309
307.6
105
147
181.75
443
143
254.4
240 D
350
320
290
400
410
8.2
D
350
-88
298
298
400
300
230
280
106
160
76
0.00001
11
0.00001
0.00023
0.5
0.00006
0.0000001
0.0000001
0.000038
0.0000097
0.00001
170
3.4
0.0002
0.0003
60
10
0.35
0.0000001
0.0000001
0.4
0.00001
0.033
0.00001
0.000009
0.00001
0.000002
0.00084
0.00001
0.00001
0.0008
0.000025
0.0001
0.0007
0.00001
0.001
0.05
40
1
0.00001
135
Level of Liquid Factor Liquid Factor Liquid Factor
Concern Ambient Boiling Molten
(gm/m3) LFA LFB LFM
2
0.0001
0.0083
0.0017
0.002
0.0035
0.002
0.00015
0.00015
0.002
0.00034
0.022
0.0008
3.5
0.015
0.002
0.0045
0.0076
0.039
0.007
0.0013
0.016
0.014
0.004
0.25
0.022
0.001
0.003
0.0001
0.0037
0.009
0.0008
0.00054
0.0003
0.028
0.01
0.0009
0.008
0.007
0.02
0.003
0.003
0.02
0.0006
0.028
0.00003
0.000000006
0.000000004
0.006
0.0003
0.002
0.0007
0.000003
0.00000008
0.000000002
0.000000009
0.00000006
0.000000001
0.00000009
0.003
0.008
0.03
0.03
0.03
0.02
0.04
0.02
0.04
0.03
0.04
0.04
0.04
0.04
0.03
0.03
0.04
0.04
0.04
0.002
0.00002
0.001
0.00000001
0.00008
0.00001
0.004
0.03
0.0008
0.0002
0.00000009
0.000000000002
0.000008
0.00000005
0.006
-------
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Analysis
(Alphabetical Order)
O
Oo
CAS 9 Chemical Na«*
84-80-0 Phylloquinone
57-47-6 Physostigmine
57-64-7 Physostigmine, Salicylate (1:1)
124-87-8 Picrotoxin
110-89-4 Piperidine
5281-13-0 Piprotal
23505-41-1 Pirimifos-Ethyl
10025-65-7 Platinous Chloride
13454-96-1 Platinum Tetrachloride
10124-50-2 Potassium Arsenite
151-50-8 Potassium Cyanide
506-61-6 Potassium Silver Cyanide
2631-37-0 Promecarb
106-96-7 Propargyl Bromide
57-57-8 Propiolactone, Beta-
107-12-0 Propionitrile
542-76-7 Propionitrile, 3-Chloro-
70-69-9 Propiophenone, 4-Amino-
109-61-5 Propyl Chloroformate
1331-17-5 Propylene Glycol, Allyl Ether
75-56-9 Propylene Oxide
75-55-8 Propyleneimine
2275-18-5 Prothoate
95-63-6 Pseudocumene
129-00-0 Pyrene
140-76-1 Pyridine, 2-Methyl-5-Vinyl-
504-24-5 Pyridine, 4-Amino-
1124-33-0 Pyridine. 4-Nitro-, 1 -Oxide
53558-25-1 Pyriminil
10049-07-7 Rhodium Trichloride
14167-18-1 Salcomine
107-44-8 Sarin
7783-00-8 Selenious Acid
7791-23-3 Selenium Oxychloride
563-41-7 Semicarbazide Hydrochloride
3037-72-7 Si lane, (4-Aminobutyl)Diethoxymethyl-
128-56-3 Sodium Anthraquinone-1-Sulfonate
7631-89-2 Sodium Arsenate
7784-46-5 Sodium Arsenite
26628-22-8 Sodium Azide (Na(N3))
124-65-2 Sodium Cacodylate
143-33-9 Sodium Cyanide (Na(CN))
62-74-8 Sodium Fluoroacetate
131-52-2 Sodium Pentachlorophenate
13410-01-0 Sodium Selenate
10102-18-8 Sodium Selenite
10102-20-2 Sodium Tellurite
900-95-8 Stamane, Acetoxytripnenyl-
57-24-9 Strychnine
60-41-3 Strychnine, Sulfate
3689-24-5 Sulfotep
3569-57-1 Sulf oxide, 3-Chloropropyl Octyl
Physical Molecular
State Weight
Liquid
Solid
Solid
Solid
Liquid
Solid
Liquid
Solid
Solid
Solid
Solid
Solid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Sol'd
Liquid
Solid
Solid
Solid
Solid
Solid
Liquid
Solid
Liquid
Solid
Liquid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Liquid
Liquid
451
275
414
603
85
457
333
266
337
254
65
199
207
119
72
55
90
149
123
116
58
57
285
120
202
119
94
140
272
209
325
140
129
166
112
205
310
326
130
65
160
49
100
288
189
173
222
409
334
383
322
239
toiling Vapor Pressure
Point a 25 C
(oC) (mm Mg)
450
D
106
463
130 D
345
88
162
97.2
175
114
160
34.23
66
330
169
404
181
273.5
390
800
147
180
220
D
1496
460
310
338
0.00000001
0.00001
0.00001
0.00001
40
0.0000001
0.00029
0.00001
0.00001
0.00001
0.00001
0.00001
0.00003
180
3.4
40
2.5
24
2
517
149
0.0001
1.9
0.00001
1.7
0.002
0.00001
0.00001
0.00001
0.00001
2.9
4
2.9
0.00001
0.06
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.00000001
0.00000001
0.00017
0.0002
Level of
Concern
(gm/m3)
25
0.0045
0.0025
0.015
0.022
0.0044
0.025
0.013
0.002
0.014
0.005
0.02
0.016
0.00003
0.0015 a
0.0037
0.009
0.0056
0.01
0.51
0.48
0.12
0.0017
0.18
0.0017
0.0019
0.02
0.08
0.0062
0.0062
0.039
0.00005
0.25
0.01
0.1
0.045
14
0.13
0.01
0.02
0.004
0.005
0.0005
0.0024
0.0016
0.0023
0.02
0.02
0.0003
0.005
0.0035
0.008
Liquid Factor Liquid Factor
Ambient Boiling
LFA LFB
0.000000000001
0.002
0.00000003
0.01
0.0001
0.001
0.0001
0.001
0.0001
0.02
0.005
0.0001
0.00009
0.0002
0.0002
0.000005
0.00000002
0.00000002
0.04
0.03
0.09
0.03
0.02
0.02
0.02
0.03
0.03
0.02
0.02
0.03
0.03
0.03
0.03
0.03
0.04
0.03
Liquid Factor
Molten
LFM
0.0000004
0.0000003
0.000000001
0.00001
0.0007
0.00002
0.00002
0.002
0.0000000000001
0.0007
-------
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Analysis
(Alphabetical Order)
N)
00
CAS *
Chemical Na
7446
7783
7446
7664
77
13494
7783
107
13071
78
597
75
509
1314
10031
6533
7791-
2757-
7446-
2231-
21564-
39196-
*640-
297
108-
79-
5344-
614
7550
584
91
110
1031
24017
76
115-
327
98-
*52-
1558-
27137
998
75
824
1066
639
555
2001-
1314-
108-
3048-
-09-5
-60-0
11-9
93-9
81-6
80-9
80-4
49-3
79-9
00-2
64-8
74-1
14-8
32-5
59-1
73-9
12-0
18-8
18-6
57-4
17-0
18-4
15-3
97-2
98-5
19-6
82-1
78-8
45-0
84-9
08-7
57-6
47-6
47-8
02-8
21-9
98-0
13-5
68-6
25-4
85-5
30-1
77-4
11-3
45-1
58-7
77-1
95-8
62-1
05-4
64-4
Sulfur Dioxide
Sulfur Tetraf luoride
Sulfur Trioxide
Sulfuric Acid
Tabun
Tellurium
Tellurium Hexaf luoride
TEPP
Terbufos
Tetraethyllead
Tetraethyltin
Tetramethyllead
Tetranitromethane
Thallic Oxide
Thallium Sulfate
Thallous Carbonate
Thallous Chloride
Thallous Malonate
Thallous Sulfate
Thiocarbazide
Thiocyanic Acid, 2-(Benzothiazolylthio)
Methyl Ester
Thiofanox
Thiometon
Thionezin
Thiophenol
Thiosemicarbazide
Thiourea, (2-Chlorophenyl)-
Thiourea, (2-Methylphenyl)-
Titanium Tetrachloride
Toluene 2,4-Di isocyanate
Toluene 2,6-Di isocyanate
Trans- 1,4-Dichlorobutene
Triamiphos
Triazofos
Trichloroacetyl Chloride
Trichloroethylsilane
Trichloronate
Trichlorophenylsilane
Trichlorophon
Trichloro(Chloromethyl)Silane
Trichloro(Dichlorophenyl)Silane
Triethoxysilane
Trimethylchlorosilane
Trimethylolpropane Phosphite
Trimethyltin Chloride
Triphenyltin Chloride
Tris(2-Chloroethyl)Amine
Valinomycin
Vanadium Pent oxide
Vinyl Acetate Monomer
Vinylnorbornene
Physical Nolecular
State Weight
Gas
Gas
Solid
Liquid
Liquid
Solid
Gas
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Liquid
Solid
Liquid
Liquid
Liquid
Solid
Solid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Solid
Liquid
Solid
Solid
Liquid
Liquid
64
108
80
98
162
128
242
290
288
323
235
267
196
457
1527
469
240
511
505
106
238
218
246
248
110
91
187
166
190
174
174
125
294
313
182
164
334
212
257
184
280
164
109
162
199
385
205
1112
182
86
120
Boiling Vapor Pressure
Point 8 25 C
(oC) (mm Hg)
-10
-40
45
290
240
989.9
-39 S
310
315
110
181
110
126
875
D
720
300
350
315
340
360
168.3
320
323
136.4
251
245
155.5
400
350
118
97.9
360
201.5
280
118
260
132
57
200
154
400
256
1750
72
141
433
0.000001
0.07
0.00001
0.00047
0.0003
0.2
2
22
13
0.00001
0.00001
0.00001
0.0000001
0.00001
0.0000001
0.00001
0.00001
0.00017
0.0003
0.003
1
0.00001
0.000002
0.000002
10
1
0.5
6
0.0000001
0.00001
0.0000001
0.6
20
0.01
0.000008
30
70
23
71
0.2
3
0.000001
0.011
0.00001
0.0000001
124
5
Level of
Concern
(gm/m3)
0.026
0.0092
0.003
0.008
0.00015
0.02
0.001
0.001
0.001
0.004
0.007
0.004
0.008 a
0.002
0.002
0.002
0.002
0.002
0.002
0.1
1.6
0.0085
0.06
0.0035
0.0014
0.0092
0.0046
0.05
0.001
0.007
0.0009
0.0044
0.01
0.0028
0.0045
0.003
0.01
0.0033
0.013
0.0003
0.008
0.005
0.05
0.0025
0.02
0.02
0.0008
0.0025
0.007
0.054
4.37
Liquid Factor Liquid Factor Liquid Factor
Ambient Boiling Molten
LFA LFB LFN
0.00000000005
0.000005
0.00000005
0.00000003
0.00002
0.0002
0.002
0.001
0.0000000008
0.00000003
0.0000003
0.00005
0.0007
0.00007
0.00003
0.0003
0.000000001
0.000000000007
0.00004
0.002
0.0000008
0.002
0.007
0.002
0.004
0.0000008
0.005
0.0003
0.02
0.03
0.04
0.04
0.06
0.04
0.05
0.04
0.03
0.03
0.03
0.03
0.04
0.03
0.03
0.03
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.04
0.03
0.03
0.03
0.03
0.01
0.00000002
0.003
0.00007
0.00000009
0.0004
0.0001
0.000000003
0.0001
0.0004
0.0000001
0.0000000000002
-------
CAS *
Chemical Name
Exhibit C-1
List of Extremely Hazardous Substances and Data for Hazards Analysis
(Alphabetical Order)
Boiling Vapor Pressure Level of Liquid Factor Liquid Factor Liquid Factor
Physical Molecular Point a 25 C Concern Ambient Boiling Molten
State Weight (oC) (mm Hg) (gm/m3) LFA LFB LFN
81-81-2 Warfarin Solid
129-06-6 Warfarin Sodium Solid
28347-13-9 Xylylene Oichloride Solid
58270-08-9 Zinc, Dichloro(4,4-Dimethyl-5((((Methyl Solid
ami no) Car bony 1 )0xy)lmino)
Pentaneni trite)-, (T-4)-
1314-84-7 Zinc Phosphide Solid
308
330
175
334
258
356
239
1100
0.00001
0.00001
0.02
0.00001
0.0000001
0.02
0.009
0.002
0.009
0.012
0.0001
0.0003
0.0000000002
a: ACGIH TLV values uere used for these chemicals.
* Chemicals proposed for deletion.
D: Decomposes
S: Sublimes
O
*-*
O
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS * Order)
to
00
CAS # Chemical Name
0 Organorhodiun Complex (PMN-82-147)
50-00-0 Formaldehyde
50-07-7 Mitomycin C
50-14-6 Ergocalciferol
51-21-8 Fluorouracil
51-75-2 Mechlorethamine
51-83-2 Carbachol Chloride
52-68-6 Trichlorophon
53-86-1 Indomethacin
54-11-5 Nicotine
54-62-6 Aminopterin
55-91-4 Isofluorphate
56-25-7 Cantharidin
56-38-2 Parathion
56-72-4 Coumaphos
57-14-7 Dimethylhydrazine
57-24-9 Strychnine
57-47-6 Physostigmine
57-57-8 Propiolactone, Beta-
57-64-7 Physostigmine, Salicylate (1:1)
57-74-9 Chlordane
O 58-36-6 Phenoxarsine, 10,10'-0xydi-
i. 58-89-9 Lindane
~ 59-88-1 Phenylhydrazine Hydrochloride
60-34-4 Methyl Hydrazine
60-41-3 Strychnine, Sulfate
60-51-5 Dimethoate
62-38-4 Phenylmercury Acetate
62-53-3 Aniline
62-73-7 Dichlorvos
62-74-8 Sodium Fluoroacetate
62-75-9 Nitrosodimethylamine
64-00-6 Phenol, 3-(1-Methylethyl)-,
Methylcarbamate
64-86-8 Colchicine
65-30-5 Nicotine Sulfate
65-86-1 Orotic Acid
66-81-9 Cycloheximide
67-66-3 Chloroform
70-69-9 Propiophenone, 4-Amino-
71-63-6 Digitoxin
72-20-8 Endrin
74-83-9 Methyl Bromide
74-90-8 Hydrocyanic Acid
74-93-1 Methyl Mercaptan
75-15-0 Carbon Oisulfide
75-18-3 Dimethyl Sulfide
75-21-8 Ethylene Oxide
75-44-5 Phosgene
75-55-8 Propyleneimine
75-56-9 Propylene Oxide
75-74-1 Tetramethyllead
Physical Molecular
State Weight
Solid
Gas
Solid
Solid
Solid
Liquid
Solid
Solid
Solid
Liquid
Solid
Liquid
Solid
Liquid
Solid
Liquid
Solid
Solid
Liquid
Solid
Liquid
Solid
Solid
Solid
Liquid
Solid
Solid
Solid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Sol id
Solid
Solid
Liquid
Solid
Solid
Solid
Gas
Gas
Gas
Liquid
Liquid
Gas
Gas
Liquid
Liquid
Liquid
30
334
397
130
156
183
257
358
162
440
184
196
291
363
60
334
275
72
414
410
502
291
145
46
383
229
337
93
221
100
74
193
399
423
156
281
119
149
765
381
95
27
48
76
62
44
99
57
58
267
Boiling Vapor Pressure
Point a 25 C
(oC) (mm Hg)
-19
534
361
200
280
246.7
185
110 S
375
63.9
460
162
D
400
323.4 D
240 D
87.5
184
400
151
143
407
245
61.7
3.6
25.7
6.2
46.5
37.3
10.7
8.2
66
34.23
110
0.00001
0.00001
0.00001
0.6
0.00001
0.000008
0.00001
0.04
0.00001
0.58
0.02
0.000038
0.0000001
157
0.00000001
0.00001
3.4
0.00001
0.00001
0.00001
0.0000094
0.00001
49.6
0.00000001
0.0000085
0.000009
0.67
0.01
0.00001
8
0.4
0.00001
0.00001
0.00001
0.006
160.0
0.00001
0.000002
360.0
520
149
517
22
Level of Liquid Factor Liquid Factor Liquid Factor
Concern Ambient Boiling Molten
(gm/m3) LFA LFB LFM
0.0008
0.012
0.023
0.04
0.019
0.029
0.015
0.013
0.0024
0.0035
0.025
0.0036
0.0043
0.002
0.003
0.012
0.0003
0.0045
0.0015 a
0.0025
0.05
0.014
0.1
0.25
0.00094
0.005
0.03
0.022
0.038
0.02
0.0005
0.019
0.016
0.0009
0.009
2
0.002
0.49
0.0056
0.00018
0.02
0.78
0.0055
0.079
0.16
0.0003
0.14
0.0008
0.12
0.48
0.004
0.00004
0.000003
0.00004
0.000000004
0.005
0.0001
0.000000001
0.001
0.00003
0.0000008
0.0003
0.009
0.01
0.02
0.005
0.02
0.002
0.03
0.03
0.03
0.03
0.02
0.02
0.04
0.02
0.02
0.03
0.02
0.04
0.03
0.02
0.02
0.02
0.05
0.0008
0.004
0.02
0.0007
0.00004
0.03
0.004
0.00001
0.0008
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS * Order)
to
CO
CAS * Chemical Name
75-77-4 Trimethylchlorosilane
75-78-5 Oimethyldichlorosilane
75-79-6 Methyl trtchlorosi lane
75-86-5 Acetone Cyanohydrin
* 76- 01 -7 Pent »ch 1 oroe thane
76-02-8 Trichloroacetyl Chloride
77-47-4 Hexachlorocyclopentadiene
77-78-1 Dimethyl Sulfate
77-81-6 Tabun
78-00-2 Tetraethyllead
78-34-2 Dioxathion
78-53-5 Ami ton
78-71-7 Oxetane. 3.3-Bis(Chloromethyl)-
78-82-0 Isobutyronitrile
78-94-4 Methyl Vinyl Ketone
78-97-7 Lactonitrile
79-06-1 Acrylamide
79-11-8 Chloroacetic Acid
79-19-6 Thiosemicarbazide
79-21-0 Peracetic Acid
79-22-1 Methyl Chloroformate
80-63-7 Methyl 2-Chloroacrylate
81-81-2 Warfarin
82-66-6 Diphactnone
84-80-0 Phylloquinone
86-50-0 Azinphos-Methyl
86-88-4 ANTU
*87-86-5 Pentachlorophenol
88-05-1 Aniline, 2.4,6-Trimethyl-
88-85-7 Dinoseb
91-08-7 Toluene 2,6-Diisocyanate
93-05-0 Diethyl-p-Phenylenediamine
95-48-7 Cresol, o-
95-63-6 Pseudocumene
97-18-7 Phenol, 2,2'-Thiobis(4,6-Dichloro)-
98-05-5 Benzenearsonic Acid
98-07-7 Benzotri chloride
98-09-9 Benzenesulfonyl Chloride
98-13-5 Trichlorophenylsilane
98-16-8 Benzenamine, 3-(Trif luoromethyl)-
98-87-3 Benzal Chloride
98-95-3 Mitrobenzene
99-98-9 Dimethyl-p-Phenylenediamine
100-14-1 Benzene, 1-(Chloromethyl)-4-Nitro-
100-44-7 Benzyl Chloride
102-36-3 Isocyanic Acid,3.4-Dichlorophenyl Ester
103-85-5 Phenylthiourea
106-89-8 Epichlorohydrin
106-96-7 Propargyl Bromide
106-99-0 Butadiene
107-02-8 Acrolein
107-07-3 Chloroethanol
Physical Molecular
State Weight
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Solid
Liquid
Liquid
Liquid
Solid
Solid
Liquid
Solid
Solid
Sol id
Liquid
Solid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Liquid
Solid
Solid
Liquid
Liquid
Gas
Liquid
Liquid
109
129
149
85
202
182
273
126
162
323
457
269
155
69
70
71
71
95
91
76
95
121
308
340
451
317
202
266
135
240
174
164
108
120
356
202
195
177
212
161
161
123
136
172
127
188
152
93
119
54
56
81
Boiling Vapor Pressure
Point a 25 C
(oC) (mm Hg)
57
70
67
200
161
118
239
188
240
110
250
330
200
103.8
81.4
182
250
189
320
105
71
140
356
450
400
400
309
232
345
245
260
191
169
220.8
251
201.5
187.5
205
210,8
262
230
179
240
320
116.5
88
-4.4
52.5
128
71
139
280
0.50
3.4
0.0000001
0.08
0.1
0.07
0.2
0.01
0.000001
0.5
50
160
1.7
0.007
0.5
0.00001
60
210
12
0.00001
0.00001
0.00000001
0.0000001
0.000001
0.0002
0.10
0.0001
0.5
0.02
0.5
1.9
0.0000001
0.00001
1.0
0.03
0.01
3.0
1.0
0.005
0.0001
0.05
1.0
0.02
0.000002
16
180
220.0
5.0
Level of
Concern
(gm/m3)
0.05
0.003
0.0018
0.012
3.5
0.0045
0.0002
0.005
0.00015
0.004
0.0034
0.0033
0.002
0.025
0.00007
0.018
0.11
0.0018
0.0092
0.0045
0.0018
0.005
0.02
0.0009
25
0.0007
0.01
0.015
0.0029
0.0045
0.0009
1.25
0.11
0.18
0.007
0.00027
0.0007
0.2
0.0033
0.0044
0.0023
0.1
0.00013
0.028
0.0052
0.014
0.003
0.038
0.00003
4.43
0.0011
0.0033
Liquid Factor Liquid Factor Liquid Factor
Ambient Boiling Molten
LFA LFB LFM
0.004
0.008
0.02
0.00002
0.0003
0.000000000007
0.000007
0.000006
0.000005
0.00002
0.000001
0.00000000009
0.00003
0.002
0.006
0.00006
0.002
0.01
0.0006
0.000000000001
0.000006
0.00003
0.000001
0.0001
0.00007
0.000002
0.0000008
0.00007
0.00007
0.0000003
0.00006
0.0007
0.01
0.007
0.0002
0.03
0.04
0.04
0.02
0.04
0.04
0.04
0.03
0.03
0.06
0.06
0.03
0.03
0.02
0.02
0.02
0.02
0.03
0.03
0.04
0.03
0.03
0.03
0.03
0.03
0.03
0.04
0.03
0.03
0.03
0.03
0.03
0.03
0.02
0.02
0.00004
0.0002
0.0004
0.0001
0.000000003
0.00009
0.001
0.000000002
0.00003
0.000005
0.00008
0.000009
0.0002
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS * Order)
CAS * Chemical Name
107-11-9 Allylamine
107-12-0 Propionitrile
107-13-1 Acrylonitrile
107-15-3 Ethylenediamine
107-16-4 Formaldehyde Cyanohydrin
107-18-6 Allyl Alcohol
107-20-0 ChIoroacetaldehyde
107-30-2 Chloromethyl Methyl Ether
107-44-8 Sarin
107-49-3 TEPP
108-05-4 Vinyl Acetate Monomer
108-23-6 Isopropyl Chloroformate
108-67-8 Mesitylene
108-91-8 Cyclohexylamine
108-95-2 Phenol
108-98-5 Thiophenol
109-19-3 Butyl Isovalerate
109-61-5 Propyl Chloroformate
109-77-3 MalononitriU
110-00-9 Furan
110-57-6 Trans-1,4-Dichlorobutene
110-89-4 Piperidine
111-34-2 Butyl Vinyl Ether
111-44-4 Oichloroethyl Ether
111-69-3 Adiponitrile
115-21-9 Trichloroethylsilane
115-26-4 Dimefox
115-29-7 Endosulfan
115-90-2 Fensulfothion
116-06-3 Aldicarb
117-52-2 Coumafuryl
119-38-0 Isopropylmethylpyrazolyl
Dimethylcarbamate
122-14-5 Fenitrothion
123-31-9 Hydroquinone
123-73-9 Crotonaldehyde, (E)-
124-65-2 Sodium Cacodylate
124-87-8 Picrotoxin
126-98-7 Methacrylonitrile
128-56-3 Sodium Anthraquinone-1-Sulfonate
129-00-0 Pyrene
129-06-6 Warfarin Sodium
131-52-2 Sodium Pentachlorophenate
140-29-4 Benzyl Cyanide
140-76-1 Pyridine, 2-Nethyl-5-Vinyl-
141-66-2 Dicrotophos
143-33-9 Sodium Cyanide (Na(CN))
144-49-0 Fluoroacetic Acid
149-74-6 DichloromethylphenylsUane
151-38-2 Methoxyethylmercuric Acetate
151-50-8 Potassium Cyanide
151-56-4 Ethyleneimine
Physical
State
Molecular
Weight
Boiling Vapor
Point a
(oC) (i
Pressure
25 C
mm Hg)
Level of Liquid Factor
Concern
(gm/m3)
Ambient
LFA
Liquid Factor Liquid Factor
Boiling
LFB
Molten
LFM
:a==sss====3:=s==sx==:B:B=3K=sx=:s3==:s==:=====S3:==r==::3=:5=:2==:s=r=====:s==:===ss===s===:E=a======3s====s::===3s=K==ss==:r====SE=:==:==:
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Liquid
Solid
Solid
Solid
Solid
Liquid
Liquid
Liquid
Solid
Solid
Liquid
Solid
Solid
Liquid
57
55
54
60
57
58
78.5
81
140
290
86
123
120
99
94
110
158
123
66
68
125
85
100
143
108
164
154
407
308
190
298
211
277
110
70
160
603
67
310
202
330
288
117
119
237
49
78
191
319
65
43
55
97.2
77.3
116
183
97
85
59
147
310
72
104.6
165
134.5
181.75
168.3
175.5
114
218
32
155.5
106
94
178
295
97.9
210
440 0
287
295
370
285
104
D
90.3
404
233.5
181
400
1496
165
205
55
500.0
40
115.0
15
1.8
23.8
100
224
2.9
0.00047
124
50
1.8
10
0.35
1
0.45
24
0.08
700
6
40
50
0.7
0.001
0.6
0.36
0.00001
.00000001
0.50
0.00001
0.001
0.000006
0.001
36
0.00001
0.00001
90
0.00001
0.00001
0.00001
0.00001
1.0
1.7
0.00001
0.00001
2
0.4
0.00001
0.00001
207
0.0032
0.0037
0.11
0.49
0.006
0.036
0.069
0.0018
0.00005
0.001
0.054
0.1
0.24
0.16
0.039
0.0014
8.2
0.01
0.019
0.0012
0.0044
0.022
0.62
0.15
0.017
0.003
0.001
0.0008
0.002
0.0003
4
0.0056
0.0038
0.02
0.04
0.004
0.015
0.003 a
14
0.0017
0.009
0.0024
0.0043
0.0019
0.0009
0.005
0.00047
0.02
0.025
0.005
0.004
0.02
0.001
0.004
0.0005
0.00006
0.0008
0.004
0.009
0.0002
0.00000005
0.005
0.003
0.0001
0.0005
0.00005
0.00003
0.001
0.03
0.0003
0.002
0.002
0.00004
0.00000005
0.00004
0.00002
0.000000000001
0.00000008
0.0000000006
0.001
0.003
0.00005
0.00009
0.0000000008
0.00003
0.006
0.02
0.02
0.02
0.02
0.02
0.02
0.03
0.03
0.03
0.04
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.03
0.02
0.04
0.03
0.03
0.03
0.03
0.02
0.02
0.02
0.03
0.03
0.03
0.02
0.00008
0.000005
0.00004
0.0008
0.00001
0.0000000000001
0.0001
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS * Order)
to
00
CAS *
152-16-9
287-92-3
297-78-9
297-97-2
298-00-0
298-02-2
298-04-4
300-62-9
302-01-2
309-00-2
315-18-4
316-42-7
327-98-0
353-42-4
359-06-8
371-62-0
379-79-3
465-73-6
470-90-6
502-39-6
O 504-24-5
L 505-60-2
*. 506-61-6
506-68-3
506-78-5
509-14-8
514-73-8
534-07-6
534-52-1
535-89-7
538-07-8
541-25-3
541-53-7
542-76-7
542-88-1
542-90-5
555-77-1
556-61-6
556-64-9
558-25-8
563-12-2
563-41-7
584-84-9
594-42-3
597-64-8
614-78-8
624-83-9
624-92-0
625-55-8
627-11-2
630-60-4
Chemical Name
Diphosphoramide, Octamethyl-
Cyclopentane
Isobenzan
Thionazin
Parath ion-Methyl
Phorate
Disulfoton
Amphetamine
Hydrazine
Aldrin
Mexacarbate
Emetine, Dihydrochloride
Trichloronate
Boron Trifluoride Compound with
Methyl Ether (1:1)
Fluoroacetyl Chloride
Ethylene Fluorohydrin
Ergotamine Tartrate
Isodrin
Chlorfenvinfos
Methylmercuric Dicyanamide
Pyridine, 4 -Ami no-
Mustard Gas
Potassium Silver Cyanide
Cyanogen Bromide
Cyanogen Iodide
Tetrani tromethane
Dithiazanine Iodide
Bis(Chloromethyl) Ketone
Dinitrocresol
Crimidine
Ethylbis(2-Chloroethyl)Amine
Lewisite
Dithiobiuret
Propionitrile, 3-Chloro-
Chloromethyl Ether
Ethyl thiocyanate
Tris(2-Chloroethyl )Amine
Methyl Isothiocyanate
Methyl Thiocyanate
Methanesulfonyl Fluoride
Ethion
Semicarbazide Hydrochloride
Toluene 2,4-Diisocyanate
Perchloromethylmercaptan
Tetraethyltin
Thiourea, (2-Methylphenyl)-
Methyl Isocyanate
Methyl Disulfide
Isopropyl Formate
Chloroethyl Chloroformate
Ouabain
Physical Molecular
State Weight
Liquid
Liquid
Solid
Liquid
Sol id
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Solid
Liquid
Liquid
Liquid
Liquid
Sol id
Solid
Liquid
Solid
Solid
Liquid
Solid
Sol id
Solid
Liquid
Sol id
Solid
Solid
Solid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
286
70
412
248
263
260
274
135
32
365
222
554
334
114
96
64
1314
365
360
299
94
159
199
106
153
196
520
127
198
172
170
207
135
90
115
87
205
73
73
98
384
112
174
186
235
166
57
94
88
143
585
Boiling Vapor Pressure
Point a 25 C
(oC) (mm Hg)
330
49
360
D
290
400
200
113.5
145
360
126
73
103.5
344
390
273.5
215
61.4
45 S
126
173
312
300
200
190
175
106
146
256
119
130
124
150 D
251
147
181
39
109.7
68.2
155.7
0.001
317
0.00001
0.003
0.0000097
0.00084
0.00018
0.90
14.4
0.000006
0.000002
0.00001
20
20.0
80
50
0.00001
0.00001
0.000004
0.00003
0.002
0.09
0.00001
92
1
13
0.00001
1.0
0.00005
0.00001
0.24
0.395
0.00001
2.5
30.0
4
0.011
15
20
10
0.0000015
0.00001
1
10
2
0.000002
348
28.6
100
9.0
0.00001
Level of
Concern
(gm/m3)
0.0008
11
0.001
0.0035
0.00034
0.0001
0.002
0.02
0.01
0.01
0.014
0.00001
0.01
0.023
0.01
0.00007
0.01
0.007
0.01
0.02
0.02
0.001
0.02
0.044
0.18
0.008 a
0.02
0.00027
0.0005
0.0012
0.0075
0.0047
0.005
0.009
0.00025
0.1
0.0008
0.033
0.085
0.014
0.013
0.1
0.007
0.0076
0.007
0.05
0.0047
0.0001
0.0014
0.02
0.0083
Liquid Factor Liquid Factor Liquid Factor
Ambient Boiling Molten
LFA LFB LFM
0.0000001
0.01
0.0000003
0.00000008
0.00000002
0.00005
0.0003
0.002
0.001
0.004
0.002
0.0000000004
0.000006
0.001
0.00002
0.00003
0.0001
0.002
0.0002
0.0000008
0.0008
0.0005
0.0000000002
0.00007
0.0007
0.0002
0.01
0.001
0.004
0.0005
0.04
0.03
0.03
0.04
0.03
0.03
0.01
0.04
0.03
0.03
0.02
0.04
0.03
0.04
0.03
0.04
0.02
0.03
0.02
0.03
0.02
0.03
0.09
0.03
0.04
0.04
0.02
0.03
0.03
0.03
0.02
0.00000003
0.004
0.0001
0.0007
0.02
0.02
0.0002
0.000007
0.00001
0.0009
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS * Order)
00
CAS * Chemical Name
633-03-4 C. I. Basic Green 1
639-58-7 Triphenyltin Chloride
640-15-3 Thiometon
640-19-7 Fluoroacetamide
644-64-4 Oimetilan
646-06-0 Dioxolane
675-14-9 Cyanuric Fluoride
676-97-1 Methyl Phosphonic Dichloride
696-28-6 Phenyl Dichloroarsine
732-11-6 Phosmet
760-93-0 Methacrylic Anhydride
786-19-6 Carbophenothion
814-49-3 Diethyl Chlorophosphate
814-68-6 Acrylyl Chloride
824-11-3 Trimethylolpropane Phosphite
900-95-8 Stannane, Acetoxytriphenyl-
919-86-8 Demeton-S-Methyl
920-46-7 Methacryloyl Chloride
944-22-9 Fonofos
947-02-4 Phosfolan
950-10-7 Mephosfolan
~ 950-37-8 Methidathion
I 991-42-4 Norbormide
£ 998-30-1 Triethoxysilane
999-81-5 Chlormequat Chloride
1031-47-6 Triamiphos
1066-45-1 Trimethyltin Chloride
1122-60-7 Nitrocyclohexane
1124-33-0 Pyridine, 4-Nitro-. 1-Oxide
1129-41-5 Metolcarb
1303-28-2 Arsenic Pent oxide
1306-19-0 Cadmium Oxide
1314-32-5 Thallic Oxide
1314-56-3 Phosphorus Pent oxide
1314-62-1 Vanadium Pentoxide
1314-84-7 Zinc Phosphide
1327-53-3 Arsenous Oxide
1331-17-5 Propylene Glycol, Allyl Ether
1335-87-1 Hexachloronaphthalene
1397-94-0 Antimycin A
1420-07-1 Dinoterb
1464-53-5 Diepoxybutane
1558-25-4 Trichloro(Chloromethyl)Silane
1563-66-2 Carbofuron
1600-27-7 Mercuric Acetate
1622-32-8 Ethanesulfonyl Chloride, 2-Chloro-
1642-54-2 Diethylcarbamazine Citrate
1752-30-3 Acetone Thiosemicarbazide
1910-42-5 Paraquat
1982-47-4 Chloroxuron
2001-95-8 Valinomycin
2032-65-7 Methiocarb
Physical Molecular
State Weight
Solid
Solid
Liquid
Solid
Solid
Liquid
Liquid
Solid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Liquid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Liquid
Solid
Solid
Solid
Liquid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Liquid
Solid
Solid
Solid
Liquid
Liquid
Sol id
Solid
Liquid
Solid
Solid
Solid
Solid
Solid
Sol id
483
385
246
77
240
74
135
133
223
317
154
343
173
91
162
409
230
105
246
255
269
302
512
164
158
294
199
129
140
165
230
128
457
142
182
258
198
116
335
549
240
86
184
221
319
163
391
131
257
291
1112
225
Boiling
Point
(oC)
400
340
250
350
74
73
163
254.4
D
240
350
210
75
200
305
96
380
410
410
132
400
154
205.5
390
360
1559 S
875
1750
1100
465
160
270
350
138
118
360
200
325
Vapor Pressure
a 25 c
(mm Hg)
0.00001
0.000001
0.0003
0.001
0.0001
70
120
1
0.033
0.0008
0.01
0.0000003
0.2
300.0
0.2
0.0001
40
0.00021
0.00001
1.0000000E-10
0.000001
0.00001
23
0.00001
0.0000001
3
0.35
0.00001
0.00001
0.00001
0.00001
0.00001
0.00001
0.0000001
0.0000001
0.0000001
2
0.003
0.00001
0.00001
16
30
0.00001
0.00001
0.6
0.00001
0.00001
0.0000001
0.0000001
0.00001
0.0001
Level of Liquid Factor Liquid Factor Liquid Factor
Concern Ambient Boiling Molten
(gm/m3) LFA LFB LFM
0.25
0.02
0.06
0.0058
0.025
0.21
0.00017
0.0014
0.004
0.00054
0.0045
0.0068
0.008
0.0009
0.0025
0.02
0.005
0.0006
0.0013
0.009
0.009
0.02
0.0038
0.005
0.007
0.01
0.02
0.0015
0.08
0.0048
0.008
0.004
0.002
0.0006
0.007
0.012
0.0014
0.51
0.0002
0.0018
0.025
0.0035
0.0003
0.00043
0.024
0.0025
0.003
0.1
0.00015
0.01
0.0025
0.015
0.00000003
0.003
0.007
0.000003
0.0000006
0.00000000003
0.00001
0.01
0.000000008
0.002
0.00000002
0.000000000000009
0.002
0.00002
0.0001
0.0007
0.002
0.00004
0.03
0.02
0.04
0.03
0.03
0.04
0.03
0.03
0.03
0.03
0.03
0.03
0.04
0.03
0.03
0.02
0.04
0.03
0.0000001
0.0002
0.00000004
0.0002
0.000008
0.0001
0.000000000002
0.0000000003
0.000000003
0.0004
0.00002
0.00000003
0.000004
0.003
0.0000000000002
0.0000000002
0.001
0.00005
0.00003
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS * Order)
00
-J
CAS * Chemical Name
2074-50-2 Paraquat Nethosulfate
2097-19-0 Ptienylsilatrane
2104-64-5 EPN
2223-93-0 Cadmium Stearate
2231-57-4 Thiocarbazide
2235-25-8 Ethylmercuric Phosphate
2238-07-5 Oiglycidyl Ether
2244-16-8 Carvone
2275-18-5 Prothoate
2497-07-6 Oxydisulfoton
2524-03-0 Diaiethyl Phosphorochloridothioate
2540-82-1 Formothion
2570-26-5 Pentadecylamine
2587-90-8 Phosphorothioic Acid, 0,0-Dimethyl-S-
(2-Methylthio) Ethyl Ester
2631-37-0 Promecarb
2636-26-2 Cyanophos
2642-71-9 Azinphos-Ethyl
2665-30-7 Phosphonothioic Acid, Methyl-, 0-
(4-Nitrophenyl) 0-Phenyl Ester
2703-13-1 Phosphonothioic Acid, Methyl-. 0-Ethyl
0-(4-(Methylthio)Phenyl) Ester
2757-18-8 Thallous Malonate
2763-96-4 Muse i mo I
2778-04-3 Endothion
3037-72-7 Si lane. (4-Aminobutyl)Oiethoxymethyl-
3048-64-4 Vinylnorbornene
3254-63-5 Phosphoric Acid, Dimethyl 4-
(Nethylthio) Phenyl Ester
3569-57-1 Sulf oxide. 3-Chloropropyl Octyl
3615-21-2 Benzimidazole, 4,5-Dichloro-2-
(THfluoromethyl)-
3689-24-5 Sulfotep
3691-35-8 Chlorophacinone
3734-97-2 Ami ton Oxalate
3735-23-7 Methyl Phenkapton
3878-19-1 Fuberidazole
4044-65-9 Bitoscanate
4098-71-9 Isophorooe Diisocyanate
4104-14-7 Phosacetim
4170-30-3 Crotonaldehyde
4301-50-2 HuenetU
4418-66-0 Phenol, 2.2'-TMobis(4-Chloro-6-Methyl)-
4835-11-4 Hexamethylenediamine. N,N'-Dibutyl-
5281-13-0 Piprotal
5344-82-1 Thiourea, (2-Chlorophenyl)-
5836-29-3 Coumatetralyl
6533-73-9 Thallous Carbonate
6923-22-4 Monocrotophoa
7440-02-0 Nickel
7440-48-4 Cobalt
7446-09-5 Sulfur Dioxide
Boiling Vapor Pressure
Physical Molecular Point a 25 C
State Weight (oC) (mm Hg)
Solid
Solid
Solid
Solid
Solid
Solid
Liquid
Liquid
Solid
Liquid
Liquid
Liquid
Sol id
Liquid
Solid
Liquid
Solid
Liquid
Liquid
Sol id
Solid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Solid
Solid
Liquid
Solid
Solid
Solid
Solid
Liquid
Solid
Solid
Liquid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Gas
408
251
323
681
106
327
130
150
285
274
161
257
227
216
207
243
345
309
262
511
114
280
205
120
248
239
255
322
375
359
349
184
192
222
375
70
258
315
228
457
187
292
469
223
59
59
64
350
380
260
230
330
330
180
250
307.6
230
345
350
400
400
298
300
220
141
300
338
310
400
290
360
400
104
443
205
463
323
430
2732
2870
-10
0.0000001
0.00001
0.000002
0.00001
0.00001
0.00001
0.09
0.04
0.0001
0.00006
1
0.0000085
0.0003
0.00003
0.0008
0.0000002
0.00001
0.0001
0.00001
0.00001
0.00001
0.06
5
0.001
0.0002
0.00017
0.00001
0.00001
0.0000035
0.00001
0.0001
0.00001
0.00001
36
0.0000025
0.0000001
0.0004
0.0000001
0.000002
0.00001
0.00001
0.000007
0.00001
0.00001
Level of
Concern
(gm/m3)
0.00015
0.001
0.005
0.0013
0.1
0.001
0.045
0.0037
0.0017
0.0035
0.0032
0.00027
0.002
0.02
0.016
0.025
0.0039
0.008
0.01
0.002
0.017
0.017
0.045
4.37
0.007
0.008
0.013
0.0035
0.001
0.003
0.011
0.0033
0.02
0.00123
0.0037
0.04
0.006
0.0013
0.0022
0.0044
0.0046
0.0165
0.002
0.00063
0.05
0.002
0.026
Liquid Factor Liquid Factor
Ambient Boiling
LFA LFB
0.000005
0.000002
0.000000006
0.00006
0.0000000008
0.00000007
0.000000001
0.000000009
0.000005
0.0003
0.00000009
0.00000002
0.00000002
0.0000000004
0.001
0.00000003
0.02
0.03
0.03
0.03
0.04
0.04
0.03
0.03
0.04
0.03
0.03
0.03
0.03
0.04
0.04
0.02
0.04
Liquid Factor
Molten
LFM
0.0008
0.000000000007
0.000000001
0.00000001
0.0000003
0.00000000003
0.0002
0.000000006
0.00000009
0.0000007
0.00001
0.0000004
0.0001
0.000000000002
0.0000001
0.000000001
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS # Order)
to
-~-
00
CAS i Chemical Name
7446-11-9 Sulfur Trioxide
7446-18-6 Thallous Sulfate
7487-94-7 Mercuric Chloride
7550-45-0 Titanium Tetrachloride
7580-67-8 Lithium Hydride
7631-89-2 Sodium Arsenate
7637-07-2 Boron Trifluoride
7647-01-0 Hydrogen Chloride (Gas Only)
7664-39-3 Hydrogen Fluoride
7664-41-7 Ammonia
7664-93-9 Sulfuric Acid
7697-37-2 Nitric Acid
7719-12-2 Phosphorus Trichloride
7722-84-1 Hydrogen Peroxide (Cone > 52X)
7723- K-0 Phosphorus
7726-95-6 Bromine
7778-44-1 Calcium Arsenate
7782-41-4 Fluorine
7782-50-5 Chlorine
7783-00-8 Selenious Acid
7783-06-4 Hydrogen Sulfide
Cj 7783-07-5 Hydrogen Selenide
I 7783-60-0 Sulfur Tetraf luoride
^ 7783-70-2 Antimony Pent a f luoride
7783-80-4 Tellurium Hexafluoride
7784-34-1 Arsenous Trichloride
7784-42-1 Arsine
7784-46-5 Sodium Arsenite
7786-34-7 Mevinphos
7791-12-0 Thallous Chloride
7791-23-3 Selenium Oxychloride
7803-51-2 Phosphine
8001-35-2 Camphechlor
8023-53-8 Dichlorobenzalkonium Chloride
8065-48-3 Demeton
10025-65-7 P I at i nous Chloride
10025-73-7 Chromic Chloride
10025-87-3 Phosphorus Oxychloride
10025-97-5 Iridium Tetrachloride
10026-13-8 Phosphorus Pentachloride
10028-15-6 Ozone
10031-59-1 Thallium Sulfate
10049-07-7 Rhodium Trichloride
10102-18-8 Sodium Selenite
10102-20-2 Sodium Tellurite
10102-43-9 Nitric Oxide
10102-44-0 Nitrogen Dioxide
10124-50-2 Potassium Arsenite
10140-87-1 Ethanol, 1,2-Dichloro-, Acetate
10210-68-1 Cobalt Carbonyl
10265-92-6 Methamidophos
10294-34-5 Boron Trichloride
Physical Molecular
State Weight
Solid
Solid
Solid
Liquid
Solid
Solid
Gas
Gas
Gas
Gas
Liquid
Liquid
Liquid
Liquid
Solid
Liquid
Solid
Gas
Gas
Solid
Gas
Gas
Gas
Liquid
Gas
Liquid
Gas
Solid
Liquid
Solid
Liquid
Gas
Solid
Solid
Liquid
Solid
Solid
Liquid
Solid
Solid
Gas
Solid
Solid
Sol id
Solid
Gas
Gas
Solid
Liquid
Solid
Solid
Gas
80
505
272
190
8
326
68
36
20
17
98
63
137
34
31
160
398
38
71
129
34
81
108
217
242
181
78
130
224
240
166
34
414
423
258
266
158
153
334
208
48
1527
209
173
222
30
46
254
157
342
141
117
Boiling Vapor Pressure
Point a 25 C
(oC) (mm Hg)
45
302
136.4
-127
-85
19.4
-33.4
290
83
76
152
280
60
-188
-34.6
-60
-41
-40
141
-39 S
130.21
-62
280
720
180
-88
D
300
1300 S
106
160
-111
D
800
-151
21.15
280
52 D
D
13
433
0.0000001
0.0004
10
0.00001
0.00001
0.000001
47.8
135
5
0.05
172.0
0.00001
4
7.0
10.0
0.00001
0.0029
0.0000001
2.9
0.4
0.00001
0.00026
0.00001
0.00001
40
0.00001
1
0.00001
0.00001
0.00001
0.00001
0.00001
0.001
0.1
0.0003
Level of
Concern
(gm/m3)
0.003
0.002
0.03
0.001
0.005
0.13
0.028
0.015
0.0016
0.035
0.008
0.026
0.028
0.01
0.003
0.0065
0.01
0.039
0.0073
0.25
0.042
0.00066
0.0092
0.0027
0.001
0.01
0.0019
0.01
0.004
0.002
0.01
0.028
0.02
0.32
0.002
0.013
0.00005
0.003
0.0047
0.02
0.002
0.002
0.0062
0.0023
0.02
0.03 a
0.0094
0.014
0.011
0.00027
0.0075
0.01
Liquid Factor Liquid Factor Liquid Factor
Ambient Boiling Molten
LFA LFB LFM
0.0007
0.00000000005
0.002
0.008
0.0001
0.01
0.0006
0.0007
0.0000002
0.0002
0.00000002
0.003
0.00000006
0.01
0.02
0.04
0.02
0.02
0.04
0.01
0.00000005
0.04
0.002
0.04
0.04
0.03
0.00007
0.03
0.003
0.03
0.003
0.04
0.006
0.00002
0.03
0.07
0.00000006
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS * Order)
10
00
^1
CAS * Chemical Name
10311-84-9 Oialifor
10476-95-6 Methacrolein Diacetate
12002-03-8 Paris Green
12108-13-3 Manganese, Tricarbonyl
Methylcyclopetadienyl
13071-79-9 Terbufos
13171-21-6 Phosphamidon
13194-48-4 Ethoprophos
13410-01-0 Sodium Selenate
13450-90-3 Gallium Trichloride
13454-96-1 Platinum Tetrachloride
13463-39-3 Nickel Carbonyl
13463-40-6 Iron. Pentacarbonyl -
13494-80-9 Telluriun
14167-18-1 Salcomine
15271-41-7 Bicyclo[2.2.1]Heptane-2-Carbonitrile,
5-Chloro-6-((((Hethylamino)Carbonyl)
OxyHmino)-, ( IS- (1 -alpha, 2-bete.
4-elpha,5-alpha,6E))-
16752-77-5 Methomyl
16919-58-7 Ammonium Chloroplatinate
O 17702-41-9 Decaborane(14)
I 17702-57-7 Formparanate
SS 19287-45-7 Diborane
19624-22-7 Pentaborane
20816-12-0 Osmium Tetroxide
20830-75-5 Digoxin
20859-73-8 Aluminum Phosphide
21548-32-3 Fosthietan
21564-17-0 Thiocyanic Acid, 2-(8enzothiazolylthio)
21609-90-5 leptophos
21908-53-2 Mercuric Oxide
21923-23-9 Chlorthiophos
22224-92-6 Fenamtphos
23135-22-0 Oxamyl
23422-53-9 Formetanate Hydrochloride
23505-41-1 Pi rimif os-Ethyl
24017-47-8 Triazofos
24934-91-6 Chlormephos
26419-73-8 Carbamic Acid, Methyl-, 0-{((2,4-
Dimethyl-1,3-Oithiolan-2-Yl)
Hethylene)Amino)-
26628-22-8 Sodium Azide (Na(N3»
27137-85-5 Trichloro(Dichlorophenyl)Silene
28347-13-9 Xylylene Oichloride
28772-56-7 Bromadiolone
30674-80-7 Methacryloyloxyethyl Isocyanate
39196-18-4 Thiofanox
50782-69-9 Phosphonothioic Acid, Methyl-, S-(2-
(Bis(l-Methylethyl)Amino)Ethyl)
0-Ethyl Ester
53558-25-1 Pyriminil
Physical Molecular
State Weight
Solid
Liquid
Solid
Liquid
Liquid
Liquid
Liquid
Solid
Solid
Solid
Liquid
Liquid
Solid
Solid
Solid
Solid
Solid
Solid
Solid
Gas
Liquid
Solid
Solid
Solid
Liquid
Liquid
Solid
Solid
Liquid
Solid
Solid
Sol id
Liquid
Liquid
Liquid
Solid
Solid
Liquid
Solid
Solid
Liquid
Solid
Liquid
Solid
394
172
1014
218
288
300
242
189
176
337
171
196
128
325
242
162
444
122
235
28
63
254
781
58
241
238
412
217
361
303
219
258
333
313
235
234
65
280
175
527
155
218
267
272
Boiling Vapor Pressure
Point a 25 C
(oC) (mm Hg>
300
191
232
315
350
300
201.3
43
103
989.9
335
213
385
-92
60
130
320
250
350
380
400
450
310
440
130 D
350
295
400
260
239
74
315
298
0.0005
0.35
0.00001
0.1
0.0003
0.000025
0.00035
0.00001
0.2
0.00001
400
40
0.00001
0.00001
0.00001
0.00005
0.00001
0.1
0.0000025
170
11
0.00001
0.00001
0.0000065
0.00001
0.000002
0.00001
0.0004
0.0000001
0.00023
0.0000001
0.00029
0.00001
0.0056
0.0000006
0.00001
70
0.02
0.00001
80
0.00017
0.0007
0.00001
Level of
Concern
(gm/m3)
0.005
0.044
0.022
0.0006
0.001
0.0003
0.026
0.0016
0.032
0.002
0.00035 a
0.0008 a
0.02
0.039
0.019
0.01
0.00044
0.01
0.0072
0.005
0.0008
0.0001
0.0002
0.02
0.0047
1.6
0.03
0.016
0.0078
0.0009
0.0017
0.018
0.025
0.0028
0.007
0.001
0.02
0.008
0.002
0.001
0.00027
0.0085
0.0009
0.0062
Liquid Factor Liquid Factor
Ambient Boiling
LFA LFB
0.00002
0.000008
0.00000003
0.000000002
0.00000003
0.03
0.003
0.006
0.0000000006
0.0000000008
0.00000004
0.00000003
0.000000001
0.0000005
0.007
0.005
0.00000006
0.03
0.04
0.04
0.04
0.03
0.05
0.04
0.02
0.04
0.03
0.04
0.09
0.04
0.03
0.04
0.04
0.04
Liquid Factor
Molten
LFM
0.000001
0.0004
0.00000002
0.0000002
0.0006
0.0000003
0.002
0.000000009
0.0000000000001
0.00002
0.00003
0.000004
0.0003
0.00000009
-------
Exhibit C-2
List of Extremely Hazardous Substances and Data for Hazards Analysis
(CAS # Order)
Boilirx
Physical Molecular Point
CAS * Chemical Name State Weight (oC)
58270-08-9 Zinc, Dichloro<4.4-Dimethyl-5 Solid 334
((((Methy(aniino)Carbonyl)Oxy)!imno)
Pentanenitrile)-, (T-4)-
62207-76-5 Cobalt, «2,2'-<1,2-Ethanediylbis Solid 361
(Nitrilomethylidene))Bis(6-Fluoro
Phenolato))(2-)-M.N',0,0')-
j Vapor Pressure Level of Liquid Factor Liquid Factor Liquid Factor
3 25 C Concern Ambient Boiling Molten
(mm Hg)
-------
APPENDIX D
ADDITIONAL INFORMATION ON LEVELS OF CONCERN
D. 1 INTRODUCTION
Levels of concern (LOCs), for purposes of this
document, are defined as the concentrations of
an extremely hazardous substance (EHS) in air
above which there may be serious irreversible
health effects or death as a result of a single
exposure for a relatively short period of time.
There is at present no precise measure of LOCs
for the chemicals listed as EHSs. Various or-
ganizations have been developing for the past
several years acute exposure guidelines for a
limited number of hazardous chemicals: the
methodology, however, is still in the develop-
mental stages. Certain of the guidelines under
development and the progress to date are de-
scribed in detail below. Until more precise
measures are developed, surrogate or esti-
mated measures of LOCs have been identified
for the listed EHSs. Local officials may choose
values for LOCs different from those estimated
in this guidance, depending upon their require-
ments and the specific characteristics of the
planning district or site and the level of protec-
tion deemed appropriate.
For the purposes of this guidance, the LOG has
been estimated by using one-tenth of the "Im-
mediately Dangerous to Life and Health" (IDLH)
level published by the National Institute for Occu-
pational Safety and Health (NIOSH) or an ap-
proximation of the IDLH from animal toxicity data
(See Appendix B). Other exposure guidelines
that may be used to estimate LOG include the
"Threshold Limit Values" (TLVs1), published by
the American Conference of Governmental In-
dustrial Hygienists (ACGIH), guidelines devel-
oped by the National Research Council (NRC) of
the National Academy of Sciences, (NAS), and
Emergency Response Planning Guidelines
(ERPGs) under development by a consortium of
chemical companies. Descriptions of the devel-
opment and uses of these exposure guidelines
will be given in the following sections.
LOCs may be given in units of parts per million
(ppm), milligrams per cubic meter (mg/m3),
milligrams per liter (mg/L), or grams per liter
(g/L).
The equations for determining LOC in this guid-
ance use the units grams per cubic meter,
(g/m3), so any other units, such as ppm, must
be converted to g/m3. Levels given in parts per
million can be converted to grams per cubic me-
ter (g/m3) as follows:
LOG (in g/m3) = LOC (In ppm) x MW
1000 5TT5
where MW is the substance's molecular weight.
For example, chlorine has an LOC (0.1 IDLH) of
2.5 ppm and a molecular weight of about 71 g/
mole. Thus, the LOC in grams per cubic meter
is:
LOG (In g/rr>3) =2.5 ppm x 71
LOC given in milligrams per cubic meter
(mg/m3) can be converted to g/m3 as follows:
LOC(ing/m3) = LOC (in mg/m3)/1000
LOC given in grams per liter (g/L) can be con-
verted to g/m3 as follows:
LOC (in g/m3) = LOC (in g/L) x 1000
LOC given in milligrams per liter (mg/L) is
equivalent to LOC in g/m3:
LOC (in g/m3) = LOC (In mg/L)
D.2 LEVEL OF CONCERN BASED ON
ONE-TENTH IDLH OR ONE-TENTH THE
ESTIMATED IDLH
About ten years ago, NIOSH developed IDLH lev-
els for approximately 390 chemicals from the
Occupational Safety and Health Administration
(OSHA) Z-1 and 2-2 lists. These are lists of
toxic and hazardous substances to which
TLVs is a registered trademark.
12/87
D-l
-------
employee exposure must be limited as required
by the Code of Federal Regulations 29, Chapter
17, Part 1910. IDLHs were developed exclusively
for respirator selection in the workplace. The
definition of IDLH provided in 30 CFR 11.3 (the
Occupational Safety and Health Act of 1970, PL
91-596) is: "Immediately dangerous to life or
health means conditions that pose an immediate
threat to life or health or conditions that pose an
immediate threat of severe exposure to con-
taminants, such as radioactive materials, which
are likely to have an adverse cumulative or de-
layed effect on health." The IDLH concentration
represents the maximum concentration of a sub-
stance in air from which healthy male workers
can escape without loss of life or irreversible
health effects under conditions of a maximum
30-minute exposure time. Practically, IDLH's
are concentrations above which a highly reliable
breathing apparatus is required with provisions
for escape.
The methodology in developing IDLHs takes into
account immediate reactions that could prevent
escape without injury, such as severe eye irrita-
tion or lung edema. The procedure used to de-
rive IDLH's from data from mammalian toxicity
studies is outlined below:
1. Where acute exposure data are available
(30 minute to 4 hour exposures), the low-
est exposure concentration causing death
or irreversible health effects in any species
is used as the IDLH concentration. These
data are often reported as lethal concen-
tration, low (LCLO).
2. Chronic exposure data are generally not
considered in developing IDLH levels for
the following reason: "Chronic exposure
data may have no relevance to the acute
effects and should be used in determining
the IDLH concentration only upon compe-
tent toxicological judgment." (NIOSH
19782),
3. Where there are no toxicity data to derive
an IDLH concentration, 500 times the Per-
missible Exposure Limit (PEL) shall be
used as the IDLH level.
EPA recognizes that the IDLH was not designed
as a measure of the exposure level required to
protect general populations. First, the IDLH is
based upon the response of a healthy, male
worker population and does not take into ac-
count exposure of more sensitive individuals
such as the elderly, children, or people with vari-
ous health problems. Second, the IDLH is based
upon a maximum 30-minute exposure period,
which may not be realistic for accidental air-
borne releases. IDLH values have been devel-
oped for about one-fourth of the EHSs on the
list. The IDLH may not indicate the concentra-
tion that could result in serious but reversible in-
jury. Based on these conditions, one-tenth the
IDLH level or an estimation of this value for sub-
stances that do not have a published IDLH, has
been selected as one approximation of an LOG
available for planning purposes. These IDLH val-
ues have been developed with human acute tox-
icity as the principal consideration and represent
exposure concentrations that are one to two or-
ders of magnitude below the median lethal con-
centration (LC50) or the median lethal dose
(LD50) levels reported for mammalian species
under experimental conditions. IDLHs were esti-
mated from acute animal toxicity test data for
substances without IDLH values. In these in-
stances, the concentration used is determined
from LC50, LCLO, LD50, or LDLO data. Inhala-
tion data were used, if available, in preference
to other data, and median lethality data were
preferred to other types. The following equa-
tions show how these data are converted to air
concentrations comparable to the IDLH level:
(1) estimated IDLH = LC50 x 0.1;
(2) estimated IDLH = LCLO
(3) estimated IDLH = LD50 x 0.01
(4) estimated IDLH = LDLO x 0.1
2 See Section D.7 for all references in Appendix D.
12/87
D-2
-------
D.3 LEVELS OF CONCERN BASED ON
THRESHOLD LIMIT VALUES (TLVs3)
ACGIH publishes an annual list of three types of
workplace exposure limits for several hundred
compounds. ACGIH has published three TLVs
as guidelines since 1941: Threshold limit value-
Time-weighted average (TLV-TWA), TLV-Short
term exposure limit (TLV-STEL), and TLV-Ceil-
ing (TLV-C).
1. The TLV-TWA is defined as the time
weighted average concentration limit for a
normal eight hour workday and 40 hours
per week, to which nearly all workers may
be repeatedly exposed, day after day,
without adverse effect.
2. The TLV-STEL is a 15-minute time-
weighted average concentration for a nor-
mal eight-hour workday and forty-hour
workweek. All workers should be able to
withstand up to four exposures per day of
concentrations as high as the TLV-STEL
with no ill effects if the TLV-TWA is not also
exceeded. TLV-STELs are applied to sup-
plement the TLV-TWA when there are rec-
ognized acute effects from a substance
whose toxic effects are primarily of a
chronic nature.
3. The TLV-C is the airborne concentration
that should not be exceeded in the
workplace under any circumstances. Ceil-
ing limits may supplement other limits or
stand alone. In many cases, ACGIH could
not find sufficient toxicological data to de-
rive TLV-STELs or TLV-Cs for chemicals
which had already been assigned a TLV-
TWA. In these instances, the ACGIH rec-
ommends that five times the TLV-TWA be
used in place of the TLV-C and that short-
term exposures not exceed 3 times- the
TLV-TWA for more than a total of 30 min-
utes during the day.
TLVs are based primarily on acute toxicity data
(LCSOs and LDSOs) and irritation data (irritation
of the cornea and respiratory tract). Irritation
effects that are considered range from barely
TLVs is a registered trademark.
detectable to irreversible, in laboratory animals
and human subjects documented in industrial ex-
posures. Only some TLVs consider neurotoxic
and mutagenic effects. Although TLVs are de-
rived for the protection of healthy male workers,
they occasionally consider special impacts on
workers with chronic respiratory problems,
TLVs do not consider reproductive effects (AC-
GIH 1966). ACGIH advises against using or ap-
plying the TLV levels outside the workplace.
D.4 LEVELS OF CONCERN BASED ON
NATIONAL ACADEMY OF SCIENCES
SHORT-TERM EXPOSURE LEVELS
For the last forty years, the NRC's Committee on
Toxicology has submitted emergency exposure
guidelines for chemicals of concern to the De-
partment of Defense (DOD) (NRC 1986), These
guidelines are used in planning for sudden con-
tamination of air during military and space op-
erations; specifically, they are used to choose
protective equipment and response plans after
non-routine but predictable occurrences such
as line breaks, spills, and fires. These guide-
lines are for peak levels of exposure considered
acceptable for rare situations, but are not to be
applied in instances of repeated exposure.
An Emergency Exposure Guidance Level (EEGL)
is defined as a concentration of a substance in
air (gas, vapor, or aerosol) judged by DOD to be
acceptable for the performance of specific tasks
by military personnel during emergency condi-
tions lasting 1-24 hours. Exposure to an EEGL is
not considered safe, but acceptable during
tasks which are necessary to prevent greater
risks, such as fire or explosion. Exposures at
the EEGLs may produce transient central nerv-
ous system effects and eye or respiratory irrita-
tion, but nothing serious enough to prevent
proper responses to emergency conditions.
Since the 1940's, the NRC has developed EEGLs
for 41 chemicals, 15 of which are listed in Sec-
tion 302 of Title III of SARA as EHSs. Although
acute toxicity is the primary basis for selecting
EEGLs, long term effects from a single acute ex-
posure are also evaluated for developmental,
reproductive (in both sexes), carcinogenic,
neurotoxic, respiratory and other organ-related
12/87
D-3
-------
effects. The effect determined to be the most
seriously debilitating, work-limiting, or sensitive
is selected as the basis for deriving the EEGL.
This concentration is intended to be sufficiently
low to protect against other toxic effects that
may occur at higher concentrations. Factors
such as age of the exposed population, length of
exposure, and susceptibility or sensitivity of the
exposed population are also considered in deter-
mining EEGLs.
Safety factors are used in developing EEGLs to
reflect the nature and quality of the data. Safety
factors for single exposures may differ from
those used in chronic studies. In the absence of
better information, a safety factor of 10 is sug-
gested for EEGLs (i.e., the reported toxicity
value should be divided by 10) if only animal
data are available and extrapolation from ani-
mals to humans is necessary for acute, short-
term effects (NRC 1986). The safety factor of
10 takes into account the possibility that some
individuals might be more sensitive than the ani-
mal species tested. A factor of 10 is also sug-
gested if the likely route of human exposure dif-
fers from the route reported experimentally
(NRC 1986) (e.g., if oral data are reported and
inhalation is the most likely exposure route for
humans).
As noted by NRC (1986, p. 7), development of
an EEGL for different durations of exposure usu-
ally begins with the shortest exposure antici-
pated - i.e., 10-15 minutes - and works up to
the longest, such as 24 hours. Under the sim-
plest framework, Haber's law is assumed to op-
erate, with the product of concentration (C) and
time (t) as a constant (k) for all the short peri-
ods used (Ct=k) (Casarett and Doull 1986). If Ct
is 30 and t is 10, then C is 3; if Ct is 30 and t is
30, then C is 1. If detoxification or recovery oc-
curs and data are available on 24-hour expo-
sures, this is taken into account in modifying Ct.
In some instances, the Ct concept will be inap-
propriate, as for materials such as ammonia that
can be more toxic with high concentrations over
short periods. Each material is considered in
relation to the applicability of Haber's law.
Generally, EEGLs have been developed for ex-
posure to single substances, although emer-
gency exposures often involve complex mixtures
of substances and, thus, present the possibility
of toxic effects resulting from several sub-
stances. In the absence of other information,
guidance levels for complex mixtures can be de-
veloped from EEGLs by assuming as a first ap-
proximation that the toxic effects are additive.
When the chemical under evaluation for devel-
opment of an EEGL is an animal or human car-
cinogen, a separate qualitative risk assessment
is undertaken in recognition of the fact that even
limited exposure to such an agent can theoreti-
cally increase the risk of cancer. The risk as-
sessment is performed with the aim of providing
an estimate of the acute exposure that would not
lead to an excess risk of cancer greater than 1 in
10,000 exposed persons. The following mathe-
matical approach, taken directly from NRC
(1986, pp. 26-27), is applicable for EEGL com-
putations for carcinogens:
1. If there has been computed an exposure
level d (usually in ppm in air), which after a
lifetime of exposure is estimated to pro-
duce some "acceptable" level of excess
risk of cancer -- say, 1x10"6 - this has
been called a "virtually safe dose" (VSD).
Computation of the dose d, if not already
done by a regulatory agency, will be com-
puted by the Committee on Toxicology in
accordance with generally accepted pro-
cedures used by the major regulatory
agencies, i.e., using the multistage no-
threshold model for carcinogenesis and
the appropriate body weight/surface area
adjustments when extrapolating from an
animal species to humans.
2. If carcinogenic effect is assumed to be a
linear function of the total (cumulative)
dose, then for a single 1-day human expo-
sure an acceptable dose (to yield the
same total lifetime exposure) would be d
times 25,600 (there being approximately
25,600 days in an average lifetime); the al-
lowable 1-day (24-h) dose rate would be
d x 25,600
3. Because of uncertainties about which of
several stages in the carcinogenic process
a material may operate in, and because of
the likely low age of military persons, it can
be shown from data of Crump and Howe
(1984) that the maximal additional risk that
12/87
D-4
-------
these considerations contribute is a factor
of 2.8. As a conservative approach, the
acceptable dose is divided by 2.8, i.e.,
d x 25,600
2~S
If a lifetime excess risk, R, is established
by DOD (for example, at 1x10"4, as has
been suggested by the International Coun-
cil on Radiation Protection for nuclear
power plant workers), then the appropriate
extent of risk at the EEGL would be
d x 25.600
2.8
y n- i»^^iT* ^m
level of risk at d
(In the example given here, the level of risk
at d was no more than 1x10~6.) If R is
1 x10"4, then
(NRC 1986).
1 x10"4, then R/risk at d = 10"4 /10"6 = 100
4. If a further element of conservatism is re-
quired (for example, where animal data
need to be extrapolated to estimate human
risk), an additional safety factor can be
used as a divisor.
The NRC's Committee on Toxicology has also
developed special public exposure guidelines
upon request from Department of Defense. The
Short-term Public Exposure Guidance Level
(SPEGL) is defined as an acceptable ceiling con-
centration for a single, unpredicted short-term
exposure to the public. The exposure period is
usually calculated to be one hour or less and
never more than 24 hours. SPEGLs are gener-
ally set at 0.1 to 0.5 times the EEGL. A safety
factor of 2 is often used to take into account ef-
fects on sensitive subpopulations, such as chil-
dren, the aged, and people with debilitating dis-
eases. A safety factor of 10 may be used to
take into account the effects of an exposure on
fetuses and newborns. Effects on the reproduc-
tive capacity of both men and women are also
considered. Five SPEGLs (for hydrazine,
dimethylhydrazine, monomethyl hydrazine, ni-
trogen dioxide, and hydrogen chloride) have
been developed by the NRC: all five chemicals
are on the list of EHSs.
D.5 LEVELS OF CONCERN BASED ON
EMERGENCY RESPONSE PLANNING
GUIDELINES
A consortium of twenty-five chemical firms has
developed a uniform protocol for community ex-
posure guidelines based upon the NRC/NAS
guidelines, EEGLs, and SPEGLs. The American
Industrial Hygiene Association (AIHA) is provid-
ing technical review. These guidelines are not
intended for repeated exposures and their adop-
tion and use by individual companies is intended
to be voluntary.
The consortium members have identified 100
chemicals of concern: for fifteen chemicals,
draft Emergency Response Planning Guidelines
(ERPGs) have been developed. None of these
as yet is available for review. Briefly, the recom-
mended procedure for developing ERPGs is as
follows:
1) Companies should use a multi-disciplinary
team, including members from the toxico-
logical, medical, and industrial hygiene
fields, to collect and review data and draft
ERPG documentation. The protocol rec-
ommends identifying producers and users
of the material and requesting unpublished
data on human health effects. Literature
searches of computer databases are also
recommended.
2) Acute toxicity data, as well as possible
long-term effects from a single acute ex-
posure, including carcinogenicity,
neurotoxicity, and reproductive and devel-
opmental effects are considered. Adjust-
ments may be made, based upon in-
formed judgment, for the increased sus-
ceptibility of sensitive subgroups in the
population. ERPGs for carcinogens may
be derived using the carcinogenicity risk
assessment methodology for acute expo-
sures employed by the NRC (1986).
3) The protocol specifies that three concen-
tration levels are needed for each chemi-
12/87
D-5
-------
cal. The ERPG-1 is defined as the "maxi-
mum airborne concentration below which it
is believed that nearly all individuals could
be exposed for up to one hour without ex-
periencing other than mild transient ad-
verse health effects or perceiving a clearly
defined objectionable odor." The ERPG-2
is the concentration below which it is be-
lieved that "nearly all individuals" would
come to no permanent harm after a one-
hour exposure period. The ERPG-3 is the
"maximum concentration below
which...nearly all individuals could be ex-
posed for up to one hour without., life
threatening health effects." (See Exhibit
D-1)
4) After the ERPG Task Force reviews and ed-
its the documentation, the guidelines and
their rationales are reviewed by a Toxicol-
ogy Committee within the AIHA. The com-
mittee is comprised of experts from gov-
ernment, industry, and academia.
5) When they are approved, the guidelines
and their documentation are filed at the
AIHA headquarters in Akron and will be
available to the public upon request.
D.6 OSHA PERMISSIBLE EXPOSURE LIMITS
AND NIOSH RECOMMENDED EXPOSURE
LIMITS
OSHA Permissable Exposure Limits (PELs) are
workplace exposure standards listed in 29 CFR
1910, Subpart Z, General Industry Standards for
Toxic and Hazardous Chemicals.
Most of the PELs listed in 29 CFR 1910 were
based on ACGIH TLVs, about 450 of which OSHA
adopted in 1971 as interim standards under sec-
tion 6(a) of the Occupational Safety and Health
Act. Between 1972 and 1984, OSHA promul-
gated 9 permanent major health standards regu-
lating worker exposure to 21 toxic chemicals or
mixtures. These standards, besides establishing
PELs for these chemicals or mixtures, also pro-
vided guidance on exposure monitoring, regu-
lated areas, methods of compliance, respiratory
protection, protective clothing, and hazard com-
munication.
Chemicals and substances listed in Subpart Z
were divided into 3 tables. PELs for chemicals
on the first table are usually 8-hour time-
weighted average (TWA) concentrations, not to
be exceeded in an 8-hour workday. For chemi-
cals on the second table, ceiling concentrations
and maximum peak concentrations were given in
addition to 8-hour TWA concentrations. The
maximum peak concentrations have associated
with them exposure durations (e.g. five minute
maximum peak concentration in any 2 hour pe-
riod). These concentrations should never ex-
ceed the maximum peak, and should fall be-
tween the ceiling and the maximum peak con-
centration for the duration indicated. The third
table provided 8-hour TWA concentrations for
mineral dusts.
The majority of OSHA PELs were adopted from
the ACGIH TLVs available in 1971. PELs are en-
forceable by law, whereas the ACGIH TLVs are
recommendations. It should be noted that there
have been no revisions of the PELs since their
adoption, although the corresponding ACGIH
TLVs may have been revised.
For chemicals which NIOSH has published rec-
ommendations, the NIOSH recommended expo-
sure limits (RELs) are found in the Pocket Guide
to Chemical Hazards. RELs are 8- or 10- hour
TWA concentrations and/or ceiling concentra-
tions.
D.7 GUIDELINES AVAILABLE FOR
EXTREMELY HAZARDOUS SUBSTANCES
As local planning committees may consider the
use of one tenth of the IDLH inappropriate for
their specific situation, Exhibits D-2 and D-3 list
the guidelines that have been discussed in this
appendix that are available for each chemical on
the List of Extremely Hazardous Substances.
Planners may wish to use these values, but
should do so only after discussion of the poten-
tial implications with qualified technical person-
nel.
12/87
D-6
-------
D. 8 REFERENCES Crump, KS. and R.S. Howe. 1984. The mul-
tistage model with a time-dependent dose pat-
American Conference of Governmental Indus- tern: applications to carcinogenic risk assess-
trial Hygienists. 1986. Threshold Limit Values ment. Risk Analysis 4: 163-176.
and Biological Exposure Indices for 1986-87.
Cincinnati, Ohio.
Casarett and Doull. 1986. Toxicology. Edited
by C.D. Klassen, M.O. Amdur, and J. Doull.
New York, Macmillan Publishing.
12/87
D-7
-------
Exhibit D-l
Emergency Response Planning Guidelines
ERPG-3:
The maximum airborne concentration below
which it is believed that nearly all individuals
could be exposed tor up to one hour without
experiencing or developing life-threatening
health effects.
ERPG-2:
The maximum airborne concentration below
which it is believed that nearly all individuals
could be exposed for up to one hour without
experiencing or developing irreversible or other
serious health effects or symptoms which could
impair an individual's ability to take protective
action.
ERPG-1:
The maximum airborne concentration below
which it is believed that nearly all individuals
could be exposed for up to one hour without
experiencing other than mild, transient adverse
health effects or perceiving a clearly defined
objectionable odor.
Adapted from Organization Resources Counselors, 1987.
12/87
D-8
-------
NIOSH. 1978. National Institute for Occupa-
tional Safety and Health. The Standards Com-
pletion Program Draft Technical Standards
Analysis and Decision Logics. NIOSH Library,
Cincinnati, Ohio. Copy courtesy of Dr. Howard
Ludwig, NIOSH.
NIOSH. 1985. National Institute for Occupa-
tional Safety and Health. Pocket Guide to
Chemical Hazards. Washington, D.C.: U.S.
Government Printing Office, DHEW (NIOSH)
Publication No. 78-210.
NRC. 1979. The National Research Council.
Criteria for Short-term Exposures to Air Pollut-
ants. November 1979.
NRC. 1986, National Research Council, Com-
mittee on Toxicology. Criteria and Methods for
Preparing Emergency Exposure Guidance Level
(EEGL), Short-Term Public Emergency Guid-
ance Level (SPEGL), and Continuous Exposure
Guidance Level (CEGL) Documents. Washing-
ton, D.C.: National Academy Press.
Organization Resources Counselors. 1987.
Memorandum to ORC Occupational Safety and
Health Group from Darrell K. Mattheis and
Rebecca L. Daiss, update on Emergency Re-
sponse Planning Guidelines (ERPG) Task
Force.. July 20, 1987.
Swank, M.G., Branson, D.R., Rampy, L.W.
1986. The Dow Program to Develop Emer-
gency Exposure Guideline Concentrations
(EEGs), February 12, 1986.
12/87
D-9
-------
DHLBII D-2 (Alphabetical)
Publiibed toxiclty nililellnn tor btrnMly Bauxdouc
Sixbetaneu tttmt could bo umed for Ot* Lmi. at Concern
CM t Qn«lc«l M«ne
IDLH
TLT-IH* CEO.
OSBA FB.
to. cos.
75865
1752303
107026
79061
107131
814686
111693
116063
309002
107186
107119
20859738
546Z6
78535
3734972
7664417
16919587
300629
62533
88051
7783702
13979*0
86084
1303282
1327533
7784341
7784421
2642719
86500
98873
98168
100141
9805S
98099
3615212
98077
100447
1*029*
15271417
53*076
4044659
10294345
7637072
353424
Acetone Cyanohydrin
Acetone Thiosenicarbaxide
Acrolain
Acrylamide
Acrylonltrile
Acrylyl Qilorld.
Adlponltrlle
Aldicarb
Aidtin
Allyl Alcohol
Allylanine
Alunlnun Phosphide
Amlnopt«rln
Amiton
Amiton OxaLeta
Ammonia
Anxoonlun Chloroplatinate*
Amphetamine
Aniline
Anlllna, 2,4.6-Trinethyl-
Antlmony Pentafluorlde
AntlmyclA A
ANTU
Arsenic Pentoxide
Arsenoua Oxide
Arsenous Trichloride
Arsine
Azlnphos-Ethyl
Axlnphos-Methyl
Benzal Chloride
Benzenamine, 3-(Trif luororoethyl)-
Benzene. l-(Chloronethyl)-4-mtro-
Benzenearsonlc Acid
Benzeneaulfonyl Chloride*
Benzlnldazole. 4.S-Dlchloro-2-(Trifluororoethyl>-
Benzotciehloride
Benzyl Chloride
Benzyl Cyanide
Bicyclo(2.2.UHeptane-2-Carbonitrile.
5-Chloro-6-((((Methylanino)Catbonyl)Ory)Imlna)-,
(IS-d-elpha. 2-bete,4-alpha,5-alpha,6E»-
Bis(Chloromethyl> Ketone
Bitoscanate
Boron Trichloride
Boron Trifluoride
Boron Trifluoride Compound With Methyl Ether (1:1)
Not Found
Not Found
5 ppn
Not Found
500 ppra
Not Found
Hot Found
Not Found
100 ng/n3
150 ppn
Not Found
Not Found
Mot Found
Not Found
Not Found
500 ppn
Not Found
Not Found
100 ppn (380.8 ng/n3)
Not Found
Not Found
Not Found
100 ng/n
Not Found
Not Found
Not Found
6 ppa
Not Found
5 ng/n3
Not Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Hot Found
10 ppn
Not Found
Not Found
Not Found
Not Found
Not Found
100 ppn
Not Found
Not Found
Not Found
.1 ppn (.25 mg/B3)
3 iM/m
2 ppn (4.5 ng/n3)
Not Found
Not Found
Not Found
.25 ng/n3
2 ppn (5 mg/n )
Mot Found
Not Found
Not Found
Not Found
Mot Found
18 ng/n3 (25 ppn)
.002 mg/o
Not Found
2 ppn (10 mg/m3)
Not Found
. 5 mg/m3
Not Found
.3 »g/m3
.2 mg/«3
Not Found
.2 ng/m3
.2 ng/n3 (.05 ppn)
Not Found
Not Found
Hot Found
Not Found
Not Found
Hot Found
Mot Found
1 ppn (5 ng/n )
Mot Found
Not Found
Not Found
Not Found
Not Found
--
Rot Found
3 ng/nj (1 ppn)
Not Found
Not Found
.3 (.8 am/.3)
.6 mg/ai3
Not Found
Not Found
Not Found
Not Found
Not Found
4 ppa (10 og/«3)
Mot Found
Not Found
Not Found
Not Found
Mot Found
27 ng/n3 (35 ppn)
Not Found
Not Found
5 ppn (20 Bg/a 1
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Rot Found
Mot Found
Rot Found
Mot Found
Rot Found
Mot Found
Not Found
Mot Found
Hot Found
Mot Found
Not Found
Not Found
Not Found
Mot Found
Rot Found
Not Found
Not Found
Not Found
.1 ppo (.25 mg/B3)
.3 B«/B
2 pp.
Not Found
Not Found
Not Found
Mot Found
2 pro (5 mg/ai3)
Hot Found
Not Found
Hot Found
Not Found
Mot Found
35 a*/.3 (35 ppn)
.002 os/5
1.3 mg/n3 (1 ppa)
5 pp» (19 as/.)3)
Not Found
.5 mg/B3
Not Found
.3 Bg/a.3
.01 mg/n3
.01 ng/n3
.01 a«/n3
.2 ng/n3 (.05 ppa)
Not Found
.2 ng/n3
Not Found
Mot Found
Not Found
.01 ng/n3
Mot Found
Not Fomd
Hot Found
1 ppn (5 n*/n3)
Hot Found
Not Found
Mot Found
Not Found
Not Found
Not Found
10 ppr/15 nln.
Rot Found
Mot Found
.05
Not !
Rot 1
Not I
Not 1
Not
3 ng/mj (1 ppn)
Found
Found
Found
Found
Found
Rot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
100
Mot Found
Not Found
Mot Found
Not Found
Mot Found
Not Found
Mot Found
Not Found
Not Fowd
Not Found
1
Not Found
Mot Found
Not Found
Rot Found
Mot Found
Mot Found
Not Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Not Found
-------
EXHIBIT D-Z CAlphabeUcel)
Published Unlcity guidellnea for Extremely Beurdouai
Substance* that could be u»e4 for the Lam! of Concern
(Continued)
CM * OieeUcel Hee»
ILV-TH» CTIL
TLT-STB.
ffL cm.
(PI-)
28772567 Bromedlolone
7726956 Bromine
10(990 Butadiene*
109193 Butyl Isovalerate*
111342 Butyl Vinyl Ether*
63303* C. I. Basic Green 1*
1306190 Cadmium (hide
2229930 Cadmium Stearete
7778441 Calcium Arsenate
8001332 Camphechlor
56257 Cantharidln
51832 Carbachol Chloride
26419739 Carbamlc Acid, Methyl-. 0-«(2,4-Din>ethyl-l,
3-Dithiolan-2-yi)Methylene)Ainlno)-
1563662 Carbofuran
75150 Carbon Diaulfide
786196 Carbophenothlon
2244169 Carvone*
57749 Chlordane
470906 Chlorfenvinfoi
7782505 Chlorine
24934916 Chlonnephoi
999815 Chlormequat Chloride
107200 Chloroecetaldehyde*
79116 Chloroacetic Acid
107071 Chloroethanol
627112 Chloroethyl Chlorotoraate
67663 Chloroform
542881 Chlorootethyl Ether
107302 Chlorooiethyl Hethyl Ether
3691358 Chloropheclnone
1982474 Chloroxuron
21923239 Chlorthlophoi
10025737 Chromic Chloride
7440484 Cobelt*
10210681 Cobelt CarbonyI
62207765 Cobalt.(<2,2-(1,2-Ethanedlylbla
(Nitrllomethylldyne))Bls(6-Fluorophenolato»
(2-)-N.N',0,0-)-
64868 Colchlclne
117522 Counafuryl*
56724 Counaphoa
5836293 Coumatetralyl
95487 Ccesol. o-
535897 Crimidlne
4170303 Crotonaldehyde
123739 Crotonaldehyde. (E>-
Not Found
10 ppn
20000 ppn
Not Found
250 ppn**
Not Found
40 mg/m3
Not Found
100 mg/m3
200 mg/m3**
Not Found
Not Found
Not Found
Not Found
500 ppn
Not Found
Not Found
500 mg/m3
Not Found
30 ppn
Not Found
Not Found
250 ppn (3 mg/m3)
Not Found
10 pp."
Not Found
1000 ppm (4883 mg/m3)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
20 mg/m3
Rot Found
Not Found
Not Found
Not Found
Not Found
Not Found
250 ppn (1106 mg/m3)**
Not Found
Not Found
400 mg/m
Not Found
.7 mg/m3 (.1 ppm)
10 ppm (22 mg/mj)
Not Found
30 mg/m (5 ppn)
Not Found
.05 mg/m3
.05 mg/m3
.2 mg/m3
.5 mg/m3
Not Found
Not Found
Not Found
. 1 mg/m3
30 mg/ar (10 ppm)
Not Found
Not Found
.5 mg/m3
Not Found
3 mg/m3 (1 ppm)
Not Found
Not Found
Not Found
--
Not Found
10 ppn (50 mg/m3)
.005 mg/m3 (.001 |
2 ppn (2 mg/m3)
Not Found
Not Found
Not Found
.5 mg/m3
3
!l mg/m3
Not Found
Not Found
Not Found
Hot Found
Not Found
5 ppo (22 mg/»3)
Not Found
Hot Found
6 m»/m3 (2 ppm)
1 ppa
1 ppm (3 mg/m3)
Rot Found
2 mg/m3 (.3 ppn)
Not Found
Hot Found
60 mg/m3 (10 pro)
Not Found
Not Found
Not Found
Not Found
l.g/13
Not Found
Not Found
Not Found
Not Found
Mot Found
Not Found
Not Found
2 mg/m3
Not Found
9 mg/m3 (3 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
50ppn (225 mg/m3)
Not Found
Not Found
Not Found
Hot Found
Rot Found
Rot Found
Rot Found
Rot Found
Rot Found
Not Found
Not Found
Rot Found
Hot Found
Rot Found
Mot Found
Hot Found
Hot Found
Not Found
.7 ««/m3 (.1 ppn)
1000 ppm (2200 mg/t. )
Hot Found
90 mg/m3 (15 ppm)
Hot Found
.1 mg/m3 .3 mg/m3
Not Found
.01 mg/m3
.5 mg/.3
Not Found
Not Found
Not Found
Not Found
20 ppn 30 ppn
Hot Found
Not Found
500 ug/m3
Not Found
3 mg/m3 (1 ppn)
Not Found
Hot Found
1 ppn (3 mg/m3)
Not Found
5 ppn (16 mg/m3)
Not Found
50 ppn (244 mg/m3)
Cere.; no per. erp. llm.
Hot Found
Not Found
Hot Found
Hot Found
1 mg/m3
.1 mg/.3
.1 mg/.3
Not Found
Not Found
Hot Found
Not Found
Hot Found
5 ppn (22 mg/m3)
Hot Found
Not Found
6 mg/m3 (2 ppm)
Hot Found
Hot Found
Not Found
Not Found
Mot Found
Mot Found
Mot Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
50
Rot Found
Hot Found
Hot Found
Hot Found
3
Hot Found
Hot Found
Hot Found
Hot Found
Not Found
Hot Found
100
Hot Found
Not Found
Not Found
Hot Found
Rot Found
Hot Found
Hot Found
Rot Found
Not Found
Not Found
Rot Found
Hot Found
Hot Found
Rot Found
Hot Found
Hot Found
Hot Found
-------
EXHIBIT D-2 (AlfhalMtlcal}
Pabllihed toxiclty Bul
-------
EXHIBIT D-2 (Alphabetical)
PubUahol Uurlclty guideline* for FI|I.«MI|J Heurdm
Substance, tbab could be used for tb* Lent of Concern
(Continued)
EssJ
TLT-imCEBL
TLT-STP.
PEL CEIL
115297 Endosulfan
2778043 Endobhlon
72208 Endrln
106898 Eplchlorohydrln
2104645 EPN
50146 Ergocalciferol
379793 Ergobamlne Tarbrabe
1622328 Ebhanesulfonyl Chloride, Z-Chloro-,
10140871 Ebhanol, 1,2-Dlchloro-, Acebabe
563122 Ebhlon
13194484 Ethoprophos
538078 Ethyll>ls(2-Chloroebhyl>Amlne
371620 Ethylene Fluorohydrin
75218 Ethylene Oxide
107153 Ebhylanedlamlne
151564 Ebhyleneimlne
2235258 Ethylmercurlc Phosphate*
542905 Ebhylbhlocyanabe
I 22224926 Fenamlphoj
122145 Fenlbrobhion
115902 Fensulfobhlon
' 4301502 Fluenetll
7782414 Fluorine
640197 Fluoroacebamida
144490 Fluoroacebic Acid
359068 Fluoroacetyl Chloride
51218 Fluorouracil
944229 Fonofos
50000 Formaldehyde
107164 Formaldehyde Cyanohydrin
23422539 Formebanabe Hydrochloride
2540821 Formobhlon
17702577 Formparanaba
21548323 Fosbhieban
3878191 Fuberldazole
110009 Furan
13450903 Gallium Trichloride
77474 Hexachlorocyclopenbadlene
1335871 Hexachloronaphbhalene*
4635114 Hexamebhylenedlamlne. N,N'-Dlbutyl-
302012 Hydrazlne
74908 Hydrocyanic Acid
7647010 Hydrogen Chloride (Gas Only)
7664393 Hydrogen Fluoride
7722841 Hydrogen Peroxide (Cone > 521)
7783075 Hydrogen Selanide
Nob Found
Nob Found
200 mg/m3
100 pp.
50 mg/m3
Not Found
Nob Found
Nob Found
Nob Found
Nob Found
Nob Found
Nob Found
Nob Found
800 ppn
2000 ppn
Nob Found
Not Found
Nob Found
Nob Found
Nob Found
Nob Found
Nob Found
25 ppn
Nob Found
Nob Found
Nob Found
Nob Found
Nob Found
100 ppn
Not Found
Nob Found
Nob Found
Nob Found
Not Found
Not Found
Not Found
Not Found
Not Found
2 mg/m3
Not Found
80 ppra
50 ppm"
100 ppra
30 ppm
75 ppm
2 PP«
.1 mg/m°
Nob Found
.I-./-3 3
2 pp. (10 mg/m-1)
.Sow/m3
Not Found
Not Found
Not Found
Not Found
.4 mg/m3
Not Found
Nob Found
Nob Found
2 mg/m3 (1 pp.)
10 pp. (25 mg/m3)
1 at/a3 (.5 pp.)
.01 oig/rn-5
Not Found
.1 mg/«3
Nob Found
.1 mg/m3
Nob Found
2 mg/n3 (1 ppn)
Not Found
.05 ms/in3
Nob Found
Nob Found
. 1 ing/m3
1.5 nuj/nT (1 ppm)
Nob Found
Nob Found
Nob Found
Nob Found
Not Found
Not Found
Nob Found
Nob Found
.1 mg/«3 (.01 ppm)
.2 mg/m3
Hob Found
.1 mg/m3 (.1 ppm)
1.5 mg/m0 (1 ppn)
.2 mg/m3 (.05 ppm)
Nob Found
Not Found
.3 Bg/m3
5 pp.
Not Found
Not Found
Not Found
Not Found
Nob Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Nob Found
Not Found
.03 at/a?
Nob Found
Nob Found
Not Found
Not Found
Not Found
4 mg/m3 (2 ppm)
Not Found
. 15 mg/m3
Not Found
Not Found
Not Found
3 mg/» (2 ppm)
Not Found
Not Found
Not Found
Not Found
Nob Found
Nob Found
Nob Found
Nob Found
Nob Found
Not Found
Not Found
Not Found
10 mg/m3 Not Found
7 mg/m 15 ppm) Not Found
2.5 mg/m3 (3 pp.) Not Found
Not Found
Not Found
Not Found
Hot Found
.lmg/m3
5 ppm (19 mg/m3)
.5 mg/m3
Not Found
Not Found
Not Found
Not Found
Nob Found
Nob Found
Nob Found
Nob Found
1 ppm
10 ppm (25 mg/m'')
Care.; no per.axp.lim.
.01 ms/m3 .04 mg/l
Nob Found
Nob Found
Nob Found
Nob Found
Not Found
.2 mg/m3 (.1 pp.)
Not Found
.05 mg/m3
Not Found
Not Found
Not Found
3 ppm 5 pp.
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.2 mg/m3
Not Found
.25 mg/m3
11 mg/mj (10 ppn)
7 mg/m3
3 ppn
1.4 mg/mj (1 ppn)
.2 mg/m3 (.05 ppm)
(5 pp.)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Nob Found
Not Found
20
Not Found
Not Found
Not Found
Nob Found
Nob Found
Nob Found
Nob Found
Nob Found
7.5
Nob Found
Nob Found
Nob Found
Nob Found
Hob Found
Hob Found
Nob Found
Nob Found
Nob Found
Not Found
Not Found
Not Found
Not Found
Hob Found
Nob Found
Not Found
Not Found
.12 (Spegl)
Nob Found
20 (Eegl), 1 (Spag
Hob Found
Nob Found
Nob Found
-------
EXHIBIT D 2 (Alffcabetlcal)
toxlcltr soldalimc for Eitr«.lj
Subalance* tliat could be u««d for thai Lenl of Concern
(Continued)
ChaalcaJ. »«»e
778306* Hydrogen Sulflde
123319 Hydroqulnone
53861 Indomethacln*
10025975 Irldium Tetrachlorlde'
13463406 Iron, Pentacarbonyl-
2977B9 Isobenzan
78820 Isobutyronltrlle
102363 Isocyanlc Acid, 3,4-Dlchloropheny; Ester
465736 Isodrln
55914 laoCluorphate
4098719 laophorone Dllsocyanate
108236 Xsopropjrl Chlorofotnate
625558 Isopropyl Fonnata
119380 IsopropyLnethylpyrazolyl Dijnethylcarbamate
78977 Lactonltrlle
21609905 Leptophos
5*1253 Lewisite
58899 Llndane
7580678 Lithium Hydrid.
109773 Halononltrila
12108133 Manganese, Trlcarbonyl Methylcyclopentadlenyl
51752 Mechlorethamlne
950107 Mephosiolen
1600277 Mercuric Acetate
7487947 Mercuric Chloride
21908532 Mercuric Guide
108678 Mesltylene*
10476956 Methacroleln Diacetate
760930 Methacryllc Anhydride
126987 Methacrylonltrlle
920467 Methacryloyl Chloride
30674807 Methacryloyloxyethyl Isocyanate
10265926 Methamldophos
558258 Mathanesulfonyl Fluoride
950378 Methldathlon
2032657 Methlocarb
16752775 Methomyl
151382 Methoxyethylmercuric Acetate
74839 Methyl Bromide
80637 Methyl 2-Chloroacrylate
79221 Methyl Chloroformate
624920 Methyl Dlsulfide
60344 Methyl Hydrazlne
624839 Methyl Isocyanate
556616 Methyl Isothlocyanate
74931 Methyl Mercaptan
676971 Methyl Fhosphonlc Dlchlorlde
300 ppn
200 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Hot Found
1000 mg/m3
55 mg/m3
Not Found
10000 mg/m3
Hot Found
Hot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
10 mg/m3"
2000 ppn
Not Found
Not Found
Not Found
5 ppn (9.4 I
20 ppn
Hot Found
400 ppn
Hot Found
TtV-lW
14 mg/m-1 (10 ppm)
2 mg/m3
Hot Found
Not Found
.8 mg/m3 (.1 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
.045 mg/m3 (.005 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.5 mg/m3
.025 mg/m
Hot Found
.1 mg/m3
Not Found
Not Found
.1 mg/m3
:lmt/°3
25 ppn
Not Found
Not Found
3 mg/m3 (1 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
2.5 mg/m3
.01 mg/in-'
20 mg/m3 (5 ppn)
Not Found
Not Found
Not Found
.05 mg/m3 (.02 ppo)
Not Found
1 mg/m3 (.5 ppn)
Not Found
.35 OS/in
TLT-STEL
21 mg/m3 (15 ppm)
Not Found
Not Found
Not Found
1.6 mg/m3 (.2 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1 . 5 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
30 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
OGBA PQ,
2 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Hot Found
.01 mg/m3
.5 «g/mj
.025 mg/m3
Not Found
Not Found
Not Found
.1 ng/m
--
Not Found
Not ound
Hot ound
Not ound
Not ound
Not ound
Hot ound
Hot Found
Hot Found
Hot Found
Hot Found
.01 mg/m3
--
Not Found
Hot Found
Not Found
.05 mg/m3 (.02 ppm)
Not Found
Not Found
fa. cm.
20 ppl
5 mg/m°
.1 mg/m;'
.1 mg/cT
40 ug/m^
80 mg/m3 (20 ppn)
20mg/mJ (10ppn/.5min)
10 (24 hr)
Hot Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.24 (Spegl)
Not Found
Not Found
Not Found
Not Found
-------
EXHIBIT D-2 (Alphabetical)
PubUahad UxJLclty guideline* for Extremely Hazardous
Substance* tfeat could b« used for the LemL of Concern
(Continued)
Cea t OH«alc»l
3735237 Methyl Phenkapton
556649 Methyl Thiocyanate
789*'. Methyl Vinyl Ketone
502396 Methylmercurlc Olcyanamide
75796 Methyltrichlorolllane
1129*15 Melolcarb
77863*7 Mevinphos
315184 Mexacarbate
50077 Mitomycin C
6923224 Monocrotophos
276396* MuscLnol
505602 Mustard Gas
74.4.0020 Hlckel*
134(3393 Nickel Carbonyl
54115 Nicotine
(5305 Nicotine Sulfate
7697372 Nitric Acid
10102439 Kitrlc Oxide
98953 Nitrobenzene
1122607 Hltrocyclohexane
10102440 Nitrogen Dioxide
62759 Hitrosodimethylamlne
991424 Morbormlde
0 Organorhodlum Complex (PMN-B2-H7)
65861 Orotic Acid*
20816120 Osmium Tetroxlde*
630604 Ouabaln
23135220 Oxanyl
76717 Qxetene, 3,3-Bis(ChlorojnethyU-
2497076 Oxydlsulfoton
10026156 Ozone
1910425 Paraquat
2074502 Paraquat Methosulfate
56382 Parathlon
296000 Parathion-Mathyl
12002036 Paris Green
19624227 Fentaborane
76017 Pentachloroethane*
87865 Pentachlorophenol*
2570265 Pentadecylamlne
79210 Feracetlc Acid
594423 Perchlorcroethyljnercrptan
108952 Phenol
64006 Phenol, 3-(l-Methylethyl)-, Mathylcarban
4418660 Phenol, 2,2'-Thlobl»(4-Chloro-6-Methyl)-
97187 Phenol, 2.2l-Thlobia(4.6-Dichloro)-
IDLB
TLY-MA Ota,
Not Found
Hot Found
Hot Found
Not Found
Hot Found
Not Found
40 mg/m **
Not Found
Not Found
Not Found
Not Found
Not Found
Potential caecin.**
.0001 ppn
35 mg/m3
Not Found
100 ppm
100 ppm
200 ppn
Not Found
50 ppn
Not Found
Not Found
Not Found
Not Found
1 mg/m3
Not Found
Not Found
Not Found
Not found
10 ppm
1.5 mg/m3
1.5 mg/rn3"
20 mg/»S
Not Found
Not Found
3 ppn
Not Found
150 ng/m3
Not Found
Not Found
10 ppm
250 ppm
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.01 mj/m3
Not Found
Hot Found
.1 mg/m3 (.01 ppn)
Hot Found
Hot Found
.25 mg/m3
Not Found
Not Found
I mg/m3
.35 mg/mj (.05 ppm)
. 5 mg/rn3
.5 mg/mj
5 mg/mj (2 ppm)
30 ma./mj (25 ppm)
1 ppr» (5 mg/m3)
Not Found
6 mg/m3 (3 ppm)
Care, potential
Hot Found
1 mg/m3
Not Found
. 002 mg/m ( . 0002 ppn)
Not Found
Not Found
Not Found
Not Found
.2 mg/m3 (.1 ppm)
.1 ae/oV?
.1 Bg/m3
. 1 mj/m3
.2 »j/m3
.2 ,n,/m3,
.01 mg/m (.005 ppm)
Not Found
.5 mg/m3
Not found
Not Found
.8 ng/m3 (.1 ppm)
19 mg/m3 (5 ppm)
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
.03 ng/m3
Hot Found
Not Found
.3 mj/m (.03 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1.5 mg/m3
10 mg/mj (4 ppn)
Not Found
Not Found
Not Found
10 mg/m3 (5 ppn)
Care, potential
Not Found
Not Found
Not Found
.006 mg/m3 (.0006 ppn)
Not Found
Not Found
Not Found
Not Found
.6 wg/m3 (.3 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
.03 mg/m3 (.015 ppn)
Not Found
Not Found
Hot Found
Not Found
Not Found
38 «g/m3 (10 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.01 mg/m3
Not Found
Not Found
.1 mg/m3
Not Found
Hot Fount)
Hot Found
Not Found
Not Found
1 mg/m3
.007 mg/m (.001 ppn)
.5 mg/m3
Not Found
5 tt*/»3 (2 ppa)
30 mg/m3 (25 ppa)
1 ppm (5 mg/.3)
Not Found
9 ms/m3 (5 ppm)
Hot Found
Not Found
1 «g/m3
Not Found
.002 mg/n
Not Found
Hot Found
Hot Found
Not Found
.2 mg/o3 (.1 ppm)
.5 m«/m^
.5 mg/m3
Hot Found
Not Found
.01 ng/m3
.01 ng/m (.005 ppm)
Not Found
.5 mg/rn3
Not Found
Not Found
.8 mg/m3 (.1 ppa)
19 mg/mj (5 ppm)
Hot Found
Dot Found
Hot Found
PEL Cgn.
.04 an/pi"
Not Found
Not found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Mot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1 (Spegl)
Not Found
Not. Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
-------
EXHIBIT 02 (Alifcabetlcal.)
Pefallahed UBdLcity guidelines for rniaejlj I
Substance* that eooU be used for tbe Level of Concem
(Continued)
Ca« t
IOLB
TLT-Ttet
rLT-THA CZIL
TLT-STP.
fP. CPL
(pp»>
58366 Phenoxersine, 10,10'-Oxydl-
6)6286 Phenyl Dlchloroaraine
59881 Phenylhydrailne Hydrochlorlde
6238* PhenylBercury Acetete
209)190 Fhenylailatrane
103855 Phenylthlourea
298022 Phorete
*1041*7 Phoiacetin
9*702* Phoifolan
75*45 Phosgene
732116 Fhosnet
13171216 Phosphenldon
7803512 Phosphin.
2703131 Pholphonothloic Acid. Methyl-, 0-Ethyl O-
(4-lMethylthlo)Phenly> Ester
2665307 Phosphonothloic Acid. Methyl-,0-<*-Nitrophenyl>
0-Phenyl Ester
50782699 Phosphonothlolc Acid, Methyl-, S-(2-(Bla
(l-Methylethyl)Anlno)Ethyl) 0-Ethyl Ester
3254635 Phosphoric Acid, Dinethyl 4-
Phenyl. Ester
2587908 Phoaphorothloic Acid. O.O-Dimethyl-S-
(2-Methylthlo) Ethyl Ester
77231*0 Phosphorus
10025873 Phosphorus Oxychlorida
10026138 Phosphorus Pentachlorlde
131*563 Phosphorus Pentoxlde
7719122 Phosphorus Trichloride
8*800 Fhylloqulnone*
57*76 Fhysoatiggilne
576*7 Fhysostlgaine, Sellcylate (1:1)
12*878 Flcrotoiin
110894 Fiperidine
5281130 Piprot.l
23505*11 PlrlBlfos-Ethrl
10025657 Pl.tlnous Chloride*
13*54961 Flitinun Tetrachloride*
1012*502 Potasslun Arsenite
151508 Potassiun Cyanide
506616 PotaialuB Sliver Cyanide
2631370 ProMc.rb
106967 Propariyl Bromide
57578 Propiolactona, B«to-
107120 Propionltrile
5*2767 Fropionltrile, 3-Chloro-
70699 Propiophanone, *-ABlno-
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
2 ppn
Not Found
Not Found
200 ppn
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
200 mg/n3
Not Found
50 ppm
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.002 mg/n3 15 rnln.**
50 mg/m3*"
Not Found
Not Found
Not Found
Potential carcin."
Not Found
Not Found
Not Found
Not Found
Not Found
. 1 nj/n3
Not Found
Not Found
.05 Slg/n3
Not Found
Not Found
Not Found
Not Found
.4 mg/n3 (
Not Found
Not Found
Not Found
Hot Found
Not Found
. 1 mg/n3
.6 rag/m3 (
1 mg/m3 (1
Not Found
1.5 ng/n3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.002 mg/n3
.002 og/n3
.2 ng/m3
5 mg/o3
5 mg/n3
Not Found
Not Found
1.5 ng/n3
Not Found
Not Found
Not Found
.1 ppn)
.3 ppn)
.1 pp»>
ppn)
(.2 ppm)
(.5 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
.2 mg/n3
Not Found
Not Found
Not Found
Not Found
Not Found
1 mg/n3 (1 ppn)
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
3 ng/B3 (.5 ppm)
Not Found
Not Found
3 ng/B3 (.5 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Rot Found
Not Found
Not Found
3 Bg/B3 (1 ppn>
Not Found
Not Found
Not Found
.01 ng/m3
.01 OR/.
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.4 ng/n3 (.1 ppn)
Not Found
Not Found
.4 ng/B3 (.3 ppn)
Not Found
Rot Found
Not Found
Not Found
Not Found
.1 ng/B3
Hot Found
1 og/n
Not Found
3 mg/n3 (.5 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
.002 ng/n3
.002 ng/B3
.01 ng/m3
5 ng/B3
Not Found
Not Found
Rot Found
Hot Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.2
Not Found
Mot Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Hot Found
Rot Found
Not Found
-------
EXHIBIT D-Z (Aliiutntieel.)
Publisbed toxictt? (uld>Llne> (or Eztreeol? Baxaxdoos
Substance* that could ba u»ed for tba Laral of Cnncarn
(Continued)
Ca» t Oianlcal Nan.
IDLB
TLY-TH«,
TLT-STB.
OSBA m.
109615 Propyl Chloroformate
1331175 Propylene Glycol, AUyl Ether*
75569 Propylene Oxide
7555B Propyleneimine
2275185 Frothoate
95636 Pseudocumene*
129000 Pyrene
504245 Pyridine, 4-Amino-
140761 Pyridine, 2-Methyl-5-Vinyl-
112*330 Pyridine, 4-Nitro-, 1-Oxlde
53556251 Pyriminil
10049077 Rhodium Trichloride*
14167181 Salcomlne
107448 Satin
7783008 Selenlous Acid
7791233 Selenium Oxychloride
563417 Semicarbazlda Hydrochlorlde
3037727 SlUne, (4-AminobutyDDlethoiymethyl-
128563 Sodium Anthraquinone-1-SulConate*
7631892 Sodium Arsenate
7784465 Sodium Araenite
26628228 Sodium Azide (Na(N3»
124652 Sodium Cacodylate
143339 Sodium Cyanide (Na(CN»
62748 Sodium Fluoroacetata
131522 Sodium Pentachlorophenate
13410010 Sodium Salanate
10102188 Sodium S.l-nit.
10102202 Sodium Tellurlte
900958 Stannane, Acetoxytriphenyl-
57249 Strychnine
60413 Strychnine, Sulfate
3689245 Sulfotep
3569571 Sulfoxida, 3-Chloropropyl Octyl
7446095 Sulfur Dioxide
7783600 Sulfur Tetr.fluorlde
7446119 Sulfur Trioxide
7664939 Sulfurlc Acid
77816 Tabun
13494809 Tellurium
7783804 Tellurium Hexafluorlde
107493 TEPP
13071799 Terbufos
78002 Tetraethyllead
597648 Tetraethyltln
75741 Tetramethyllead
Not Found
Not Found
2000 ppn
500 ppn
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
100 mg/m3**
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
50 mg/m3**
5 mt/m3
Not Found
100 rng/n3**
Not Found
Not Found
200 mg/ro *
3 mg/m3
Not Found
35 rng/m3**
Not Found
100 ppn
Not Found
Not Found
80 ing/m3
Not Found
Not Found
1 ppn
10 mg/mj
Not Found
40 mg/m3
Not Found
40 mt/m3
Not Found
Not Found
50 mg/m3 (20 ppm)
5 Big/m3 (2 ppm)
Not Found
25 ppm (125 mg/n3)
Not Found
Not Found
Not Found
Not Found
Not Found
1 mg/m3
Not Found
Not Found
.2 mg/m3
.2 mg/mj
Not Found
Not Found
Not Found
.2 mg/m3
.3 mg/m (.1 ppm)
.2 mg/m3
5 mg/mj
.05 mg/m3
Not Found
.2 mg/m3
.1 mg/m3
.lmg/»3
. 15 mg/mj
Not Found
. 2 mg/m3
Not Found
5 mg/m3 (2 ppn)
Not Found
1 mg/m3
Not Found
.1 mg/m3
.2 mg/mj (.02 ppn)
.004 ppm (.05 mg/ni >
Not Found
.1 mg/m
. 15 mg/m3
(.1 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
.15mg/.3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
10 ng/m3 (5 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
240 mg/m3 (100 ppo)
5 ew/«j3 (2 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.img/m3
Not Found
Not Found
.2 ma/in'
.2 mg/m3
Not Found
Not Found
Not Found
.01 mg/m3
.01 at/a3
Not Found
.01 mg/m3
5 «g/mj
.05 mg/m3
Not Found
.2 mg/m3
.2 at/of
. 1 mg/m3
. 1 mg/mj
.IS mg/»J
Not Found
.2 «g/m3
Not Found
13 ms/«3 (5 pp.)
2.5 «g/ai3
Not Found
1 mg/»3
Not Found
. 1 nig/m3
.2 mg/nj (.02 ppn)
.05 mg/m3
Not Found
.079 «/
1 «/" ,
.075 mg/ar
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
10
Not Found
Not Found
1 mg/-3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
-------
EffllBII D 2 (Alplufc.tlc.1)
F»bll»b«d toiicltj guideline* foe Filmalj
Sofc«t dust; . tag/m° fu
Not Found
These chemicals have been proposed for delisting because they do not meet acute toxlcity criteria
Not Found
1 Non-specific chemicals
Not Found
Rot Found
Mot Found
Mot Found
Mot Found
Not Found
Not Found
Mot Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
i Not Found
Not Found
Not Found
Not Found
Hot Found
Mot Found
Not Found
Hot Found
-------
EXHIBIT D-3 (Caa f)
Fubllihed toxiclly guidelines for Eitr«ly Hazardous
Substances tbat could be used for the Lewi of Concem
Chemical Kane
0 Organorhodium Complex (PMN-82-147)
50000 Formaldehyde
50077 Hitomycln C
50146 Ergocalciferol
51218 Fluorouracil
51752 Mechlorethamina
51832 Carbachol Chloride
52686 Trichlorophon*
53861 Indomethacin*
54115 Nicotine
54626 Aminopterin
55914 Isofluorphate
56257 Cjntharldin
56382 Parathion
56724 Coumaphos
5714? Diroethylhydrazine
57249 Strychnine
57476 Physostigmine
57578 Propiolactone, Beta-
57647 Physoatlgmlne, Sallcylate (1:1)
57749 Chlordane
58366 Fhenoxarsine, 10.10'-Oxydi-
58399 Llndane
59881 Phenylhydrazine Hydrochloride
60344 Methyl Hydrazlne
60413 Strychnine, Sulfate
60515 Dimethoate
62364 Phenyljnercury Acetate
62533 Aniline
62737 Dichlorvos
62748 Sodium Fluoroacetate
62759 Nitrosodimethylamine
64006 Phenol, 3-(l-Mothylethyl>-, Methylcarbamate
64866 Colchiclne
65305 Nicotine Sulfate
65861 Orotic Acid*
66819 Cyclohexlmide
67663 Chloroform
70699 Propiophenone. 4-Amlno-
71636 Digltoxin
72208 Endrln
74839 Methyl Bromide
74908 Hydrocyanic Acid
74931 Methyl Mercaptan
75150 Carbon Disulflde
75183 Dimethyl Sulflde
75218 Ethylene Oxide
75445 Phosgene
I11IJ
Not Found
100 ppm
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
35 mg/m3
Not Found
Not Found
Not Found
20 mg/m3
Not Found
50 ppm
3 mg/mj
Not Found
Potential carcin.**
Not Found
500 mg/m3
Not Found
1000 mg/m3
Not Found
5 ppm (9.4 mg/m3)"
Not Found
Not Found
Not Found
100 ppm (380.8 mg/m3>
200 mg/m
5 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1000 ppm (4883 mg/m3)
Not Found
Not Found
200 mg/m
2000 ppm
50 ppm«"
400 ppm
500 ppm
Not Found
BOO ppm
2 ppt,
TLV-IHH
1 mg/013
1.5 mg/in (1 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.5 mg/m3
Not Found
Not Found
Not Found
.1 mg/m3
Not Found
1 mg/m3 (5 ppm)
. 15 mg/mj
Not Found
1.5 mg/m3 (.5 ppm)
Not Found
.5 me/m3
.2 mg/m3
.5mg/m3
Not Found
--
Not Found
Not Found
.1 mg/m3
2 ppm (10 mg/m >
.1 ppm (1 mg/m3)
.05 mg/mj
Care, potential
Not Found
Not Found
.5 mg/m3
Not Found
Not Found
10 ppm (50 mg/m3)
Not Found
Not Found
.1 mg/m3
20 n»/coj (5 ppm)
3
I mg/m ( .5 ppm)
30 mg/m3 (10 ppm)
Not Found
2 mg/m3 (1 ppm)
. 4 mg/m { . 1 ppm)
PP. an.
35 mg/mj
10 at/a"
Not Found
3 mg/m3 (2 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
3 mg/m3 (1 ppm)
Not Found
Not Found
3 mc/m3 (1 ppm)
Not Found
2 mg/m3
--
1.5 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
5 ppn (20 mg/m3)
.3 ppm (3 a«/m3)
.15 mg/mj
Care, potential
Not Found
Not Found
1.5 mg/m3
Not Found
Not Found
50 ppm (225 mg/m3)
Npt Found
Not Found
.3 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1 mg/mj
3 ppm
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.5 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.15 ms/»
Not Found
Not Found
Not Found
500 ug/m'
.01 mg/m3
. 5 mg/mj
Not Found
--
Not Found
Not Found
Hot Found
5 ppm (19 ma./m3)
1 »g/»3 ,
.05 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
--
Not Found
Not Found
. 1 mg/m3
--
11 mg/m3 (10
--
20 ppn
Not Found
1 ppm
. 4 mg/m ( . 1
ppm]
ppm)
--
5 ppn
--
--
--
--
--
--
__
--
__
--
--
--
--
--
--
__
Not Found
_-
--
__
.35 rag/in3
--
--
-_
__
--
-_
._
._
-_
--
--
__
50 ppm (244 ms/m3)
--
--
~-
60 mg/m3 <20 ppm)
__
20mg/m3 (lOppm/.Smin)
30 ppm
--
_.
--
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.24 (SpagL)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.24 (Spegl)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
100
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
50
Not Found
20
2
-------
K)
00
EOCIBIT D 3 (Cm* ft
Fibliabed buiclty suidellnea tor lTilie»alj Beunkma
Subatamce. tkat co»ld be »Md tor tbo> L.r.1 of Concern
(Continued)
H.T-TO*.
n.y-T»am.
pp. GPL
Kj
o
75558
75569
757*1
75774
75785
75796
75865
76017
76028
77*7*
77781
77816
78002
78342
78535
78717
78820
7894*
78977
79061
79118
79196
79210
79221
80637
81812
82666
8*800
86500
8688*
87865
88051
88857
91087
93050
95*87
95636
97187
98055
98077
98099
98135
98168
98873
98953
99989
Propyleneinine
Propylene Oxide
Tetramethyllead
TrimethylchloroslLane
Dlmethyldlchlorosllane
Methyltrichlorosilane
Acetone Cyanohydrin
Fentachloroe thane*
Trichloroacetyl Chloride
Bexachlorocyclopentadiene
Dimethyl Sulfite
Tabun
Tetraethyllead
Diozathion
Amiton
Qxetane. 3,3-BiB(Chloromethyl)-
Isobutyronlttile
Methyl Vinyl Ketone
Lactonitrlle
Acrylvaide
Chloroacatic Acid
Thiosenicarbazide
Peracetle Acid
Methyl Chloroforaate
Methyl 2-Chloroacrylata
Warfarin
Diphacinone
Ftiylloquinone*
Ailnphos Methyl
AMTU
Pentachloropheno1*
Aniline. 2.*,6-Trimethyl-
Dinoseb
Toluene 2.6-Dilsocyanate
Dlethyl-p-Fhenylenediamlne*
Cresol, o-
Phenol. 2.21-Thlobi«(*,6-Dichloro)-
Benzenearsonic Acid
Benzotrlchloride
Benzenesulfonyl Chloride*
Trichlorophenylsilane
Benzenamine. 3-(Trifluoromethyl)-
Benzal Chloride
Mi trobenzene
Diiaethyl-p-Phenylenediamine
500 ppn
2000 ppm
40 mj/rn
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
10 ppro (52 mg/m3)
Not Found
40 rug/in3
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
200 mg/m3
Not Found
Not Found
5 mg/m3
100 mg/m^
150 mg/mj
Not Found
Not Found
Not Found
Not Found
250 ppm (1106 mg/B3)**
Not Found
No Found
No Found
No Found
No Found
No Found
Not Found
Not Found
200 ppm
Not Found
5 mg/ni (2 ppm)
50 mg/m3 (20 ppm)
. 15 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.1 mg/m3 (.01 pan)
.1 ppm (.5 mg/m3)
Not Found
. i "a/"3.
.2 n»/mj
Not Found
Not Found
Not Found
Not Found
Not Found
.3 mt/.3
Not Found
Not Found
Not Found
Not Found
Not Found
. 1 mg/m3
Not Found
Not Found
.2 «/-'
.3 -./-'
.5-,/m3
Not Found
Not Few*
Not Found
Not Found
5 pp. (22 »/.'>
25 ppm (125 «/')
Not Found
.2 «g/.3
Not Found
Not Found
Not Found
Not Found
Not Found
1 pp. (5 mg/m3)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not
Not
Not
Not
ound
ound
ound
ound
Not Found
Not Found
Not Found
Rot Found
Not Found
Not Found
Not Found
Mot Found
. mg/m3
Mot Found
Mot Found
Mot Found
Mot Found
Mot Found
.3 »/'
Mot Found
Mot Found
Not Found
Mot Found
Mot Found
Mot Found
Mot found
Mot Found
Mot Found
Mot Found
Mot Found
Not Found
Mot Found
Mot Found
Mot Found
Mot Found
Mot Found
Mot Found
Mot Found
5 oig/in-' (2 pp>)
240 mg/m3 (100 ppn)
.075 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1 ppm (5 mg/m3)
Not Found
.075 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.3 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
.1 mg/m3
Mot Found
Not Found
.2 mg/m3
.3 m./.3
.5 mg/mj
Not Found
Not Found
Not Found
Not Found
5 ppm (22 mg/m3)
Not Found
Not Found
.01 »g/m3
Not Found
Not Found
Not Found
Not Found
Not Found
1 ppm (5 mg/m3)
Hot Found
Not Found
Not Found
Mot Found
Mot Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Not Found
Mot Found
Mot Found
Not Found
Not Found
Not Found
Mot Found
Not Found
Mot Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Not Found
-------
EXHIBIT 03 tCa» »)
Publlahed toxic ity guidelines for Extxea*!.? Hazardous
Substances that could be used for th* Lanl of Concern
(Continued)
Ca. '
IDU3
H.T-STP.
osa* PEL
pp. Cgn.
tp
Kj
100141 Benzene. l-(Chloromethyl)-«-Nttro-
100447 Benzyl Chloride
102363 Isocyanic Acid. 3,4-Dichlorophenyl Ester
103855 Phenylthiourea
106898 Epichlorohydrln
106967 Propacgyl Bromide
106990 Butadiene*
107028 Acroleln
107073 Chloroethanol
107119 Allylamlne
107120 Propionitrile
107131 Aerylonitrlle
107153 Ethylenedlamine
107164 Formaldehyde Cyanohydrln
107186 Allyl Alcohol
107200 Chloroacetaldehyde*
107302 Chloromethyl Methyl Ether
107448 Serin
107493 IEPP
108054 Vinyl Acetate Monomer
108236 Isopropyl Chlorofomete
108678 Hesltylene*
108918 Cycloheiylanine
108952 Phenol
108985 Ihiophenol
109193 Butyl Isovelerate*
109615 Propyl Chloroforaat*
109773 Malononltrile
110009 Furan
110576 Trans-1.4-Dichlorobutene
110894 Piperidlne
111342 Butyl Vinyl Ether*
111444 Oichloroethyl Ether
111693 Adiponitrlle
115219 Irichloroethylsilene
115264 Diwefoi
115297 Endosulfan
115902 Fensulfothlon
116063 Aldlcarb
117522 Coumafuryl*
119380 Isopropylmethylpyrazolyl Dimethylcarbamate
122145 Fenitrothion
123319 Hydroqulnona
123739 Crotonaldehjda. (E)-
124652 Sodlue Cacodylete
124878 Plcrotoiin
Hot Found
10 ppra
Not Found
Not Found
100 ppro
Not Found
20000 ppm
5 ppm
10 ppm**
Not Found
Hot Found
500 ppm
2000 ppm
Not Found
150 ppm
250 ppm (3 ms/m >
Not Found
Not Found
10 nvg/m3
Not Found
Not Found
Not Found
Nob Found
250 ppm
Not Found
Not Found
Hot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
250 ppm**
Not Found
Not ound
Not ound
Not ound
Not ound
Not ound
Hot ound
Not ound
Not ound
200 mg/ro3
400 mg/m3
Not Found
Not Found
Not Found
1 ppm (5 ms/m )
Not Found
Not Found
2 ppm (10 mg/m3)
Not Found
10 ppm (22 ms/m3)
.1 ppm (.25 ms/m3)
--
Not Found
Not Found
2 ppm (4.5 mg/m3)
10 ppm (25 mg/m3)
Not Found
2 ppm t 5 mg/m3)
--
2 ppm (2 mg/m3)
Not Found
.004 ppm (.05 mg/m3)
30 mg/m3 (10 ppm)
Not Found
25 ppra
40 ms/or (10 ppm)
19 mg/»3 (5 ppm)
2 mg/m ( .5 ppm)
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
30 mg/m3 (5 ppm)
Not Found
Not Found
Not Found
. 1 mg/nT
.1 mg/mj
Not Found
Not Found
Not Found
Not Found
2 mg/m3
6 mg/m (2 ppm)
.2 mg/ffl3
Not Found
1 ppm (3 ing/nO
Hot Found
Not Found
Mot Found
Not Found
5 ppn
Not Found
Not Found
.3 (.8 mg/m3)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
4 ppn (10 mg/m )
Not Found
Not Found
Not Found
Not Found
60 mg/m3 (20 ppm)
Not Found
Not Found
Not Found
38 mg/m (10 ppm)
Not Found
Not Found
No Found
Ho Found
No Found
No Found
No Found
Not Found
60 mg/m3 (10 ppm)
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1 ppm (5 mg/m3)
Not Found
Not Found
5 ppm (19 rng/m3)
Not Found
1000 ppx (2200 ms/m3)
. 1 ppn ( . 25 mg/m )
5 ppm (16 mg/m3)
Not Found
Not Found
2 ppm
10 ppn (25 mg/mj)
Not Found
2 ppm (5 mg/m3)
--
Not Found
Not Found
.05 mg/m3
Not Found
Not Found
Not Found
Not Found
19 mg/m3 (5 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
2 mg/m3
6 mg/mj (2 ppm)
.01 mg/u3
Not Found
10 ppm/15 min.
1 ppm (3 mg/m )
90 mg/rn (15 ppm)
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
.05
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
-------
D-3 (Cm, t)
toxiclty guideline* for
that could be o«ed for U>. Lml of Concern
(Continued)
C~ f
IPtH
TLT-S1P.
BGL/SPBGL (ppm)
K»
ound
ound
ound
ound
ound
126987 Methacrylonltrile Hot Found
128563 Sodium Anthraquinone-1-Sulfonate* Hot Found
129000 Pyr.no Hot Found
129066 Warfarin Sodium Not Found
131522 Sodium Pentechlorophenate Not Found
140294 Benzyl Cyanide Not Found
140761 Pyridlne. 2-Hethyl-5-Vinyl- Not Found
141662 Dicrotophos Not Found
143339 Sodium Cyanide (Ha(CH)) 50 ing/m "
144490 Fluoroacetlc Acid Not Found
149746 DichloromethylphenrlsUene Not Found
151382 Methoxyethylmercurlc Acetate 10 mg/m "
151506 Potassium Cyanide 50 mg/mj**
151564 Ethyleneimlne Not Found
152169 Diphospnoramlde, Octmethyl- Not Found
287923 Cyclopentane* Not Found
297789 Isobenzan Not Found
297972 Thionazln Not
298000 Parathlon-Methyl Hot
298022 Phorete Not
298044 Disulfoton Hot
300629 Amphetamine Not
302012 Hydrazlne 80 ppm
309002 Aldrin 100 mg/m
315184 Mexacarbate Not Found
316427 Emetine. DlhydrochLoride Not Found
327980 Trlchloronate . Not Found
353424 Boron Irifluoride Compound With Methyl Ether (1:1) Not Found
359068 Fluoroacetyi Chloride . Not Found
371620 Ethylene Fluorohydrin Hot Found
379793 Ergotamlne Tartrate Not Found
465736 Isodrln Not Found
470906 Chlorfenvinfos Not Found
502396 Methylmercuric Dicyanamide Not Found
504245 Pyrldine. 4-Amino- Not Found
505602 Mustard Gas Not Found
506616 Potassium Silver Cyanide Not Found
506683 Cyanogen Bromld Not Found
506785 Cyanogen Iodide Not Found
509148 Tetranltroaiethene 5 ppm
514738 Dlthlazanlne Iodide Not Found
534076 Bls(Chloramethyl) Ketone Not Found
534521 Dinltrocresol 5 mg/m
535897 Crlnidlne Not Found
538078 Ethylbis(2-Chloroethyl)Amlne Not Found
541253 Lewisite Hot Found
3 ing/m0 (1 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.25 n>g/m3
5 mg/m3
.05 mg/mj
Not Found
.01 mg/m3
5 mg/m3
1 mg/li (.5 ppn)
Not Found
1720 mg/m3
Not Found
Not Found
.2 mg/m3
.05 mg/mj
.1 mg/m3
Not Found
(600 ppm)
.25 mg/mj
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.01 mg/m3
Not Found
Hot Found
.1 ppm)
oun
3
5 mg/m
5 mg/m
5 Bg/o^
8 mj/» (1 ppm)
Not Found
Not Found
.2 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
.15 mg/m
Not Found
30 mg/m3
Hot Found
Hot Found
Not Found
2580 mg/m3
Hot Found
Hot Found
Not Found
.2 mg/m3
Hot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
Not Found
Not Found
.03 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
5 mg/m3
.05 mg/m3
Not Found
.01 mg/m3
5 mg/mj
Care.; no per.exp.llm.
Not Found
(900 ppm) Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1.3 mg/m' (1 ppm)
.25 mg/mj
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
.01 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
8 mg/m3 (1 ppm)
Not Found
.2 mg/B3
Not Found
.01 mg/m3
40 ug/aT
.04 mg/m-1
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Hot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.12 (Spegl)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
-------
EXHIBIT D-3 (Caa f >
Published Unicity Buldalinu for Extreavlr Hazardoua
Substances 'that could b« uMd Cor tlw LOT*! of Concern
(Continued)
Ovlcal Ha»e
ILT-STP.
OSB» PEL
PEL CEP.
541537 Dithiobiuret
542767 Propionltrile, 3-Chloro-
542881 Chloromethyl Ether
54290S Ethylthiocyenate
555771 Trl.(2 ChloroethyDAmlne
556616 Methyl Isothlocyanate
556649 Methyl Thiocyanate
558258 MethanesuUonyl Fluoride
563122 Ethion
563417 Semicarbazlde Hydrochloride
584849 Toluene 2,4-Diisocyanate
594423 Ferchloromethylmercaptan
597648 Tetraethyltin
614788 Thlourea, (2-Methylphenyl)-
624839 Methyl Isocyanate
£_ 624920 Methyl Dlsulfide
V 625558 Isopropyl Formate
K> 627112 Chloroethyl Chloroformate
U) 630604 Ouabain
633034 C. I. Basic Green 1*
639587 TriphenylUn Chloride
640153 Thlometon*
640197 Fluoroacetenlde
644644 Dinetilan
646060 Dloxolane*
675149 Cyanuric Fluoride
676971 Methyl Phosphonic Dichloride
696286 Phenyl Dichloroarsine
732116 Phosmet
760930 Methacrylic Anhydride
786196 C.rbophmothion
814493 Diathyl Chlorophosphate
814686 Aerylyl Chloride
824113 Trlnethylolpropane Phosphite
900958 Stannane, Acetoxytriphenyl-
919868 Demeton-S-M*thyl
920467 Methacryloyl Chloride
944229 Fonofos
947024 PhosColan
950107 Mephosfolan
950378 Methidathlon
991424 Morbormlde
998301 Trlethoxysllane
999815 Chlormequat Chloride
1031476 Triamlphos
1066451 Trlmethyltln Chloride
1122607 Nltrocyclohexane
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
10 ppra
10 ppm
Not Found
Not Found
20 ppm
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
200 mg/m3**
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.005 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
.4 mg/m3
Not Found
.04 mg/m3 (
.8 mg/m^ (.
.1 mg/m3
Not Found
.05 mg/ffl3 (
Not Found
Not Found
Not Found
Not Found
Not Found
100 ug/n3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.1 mg/m3
Not Found
Not Found
.1 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
.1 n»/m3
Not Found
(.001 ppm)
.005 ppn)
1 ppn)
.02 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not. Found
Not Found
Not Found
Not Found
.15 mg/m3 (.02 ppm)
Not found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
ezp. llm.
Not Found
Not Found
Care.; no per.
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
.8 mg/m^ (.1 ppn)
.1 mg/.3
Not Found
.05 mg/m3 (.02 p[»>
Not Found
Not Found
Hot Found
Not Found
Not Found
.1 at/a3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.01 rng/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
. 1 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.1 mg/m3
Not Found
.14 me/ra (.02 pro)
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
Not Found
Not Found
Hot Found
Hot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Hot Found
Not Found
Hot Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
-------
It D-3 (Cm* t)
hfcllihed toxiclt* guldvUnm lor btreMl? Haurdona
Sutntances that could be uaed for the) Lenl of Cmcern
(Continued)
Cm* t Cnaedcal H.
TLYHeACTIL
T1.T-SHL
(pp>)
112*330 Pyridlne. 4-Nitro-. 1-Oxide
1129415 Metolcerb
1303282 Arsenic Pentoxide
1306190 Cadmium Oxide
1314325 Thallic Oxide*
1314563 Phosphorus Pentoxide
131*621 Venadiun Pentoxide
13148*7 Zinc Phosphide
1327533 Arsenous Oxide
1331175 Propylene Glycol, Allyl Ether*
1335871 Bexachloronaphthalene*
13979*0 Antinycln A
1*20071 Dinoterb
1*64535 Diepoxybutane
155825* Irichloro(Chloroiaethyl)Sllane
1563662 Carbofuran
1600277 Mercuric Acetate
1622328 Ethanesulfonyl Chloride, 2-Chloro-
16*25*2 Diathylcarbanailne Citrate
1752303 Acetone Thlosemlcarbazide
1910*25 Paraquat
1982*7* Chloroxuron
2001958 Valinooycin
2032657 MeUilocarb
207*502 Paraquat MetbosuUate
2097190 PhenyLsiletrene
210*6*5 EPN
2223930 Cedmiun Stearate
223157* Thlocarbazlde
2235258 Ethylanrcuric Phosphate*
2238075 Diglycidyl Ether
224*168 Cervone*
2275185 Frothoate
2*97076 Oxydlsulfoton
2524030 Dimethyl Phospborochlorldothioate
25*0821 Fonnothlon
2570265 Pentadecylanlne
2587906 Phosphorothioic Acid, O.O-Oimethyl-S-
(2-Methylthio) Ethyl Ester
2631370 Prooecarb
2636262 Cyanophos
2642719 Azinphos-Ethyl
2665307 Fhosphonothioic Acid, MBthyl-.O-(*-Hitrophenyl)
0-Phenyl Ester
2703131 Phosphonothioic Acid, Mathyl-, 0-Ethyl O-
(4-(Methylthlo)Phenyl) Ester
Hot Found
Mot Found
Not Found
40 nw/n3
Not Found
Not Found
70 ngM3
Not Found
Not Found
Not Found
2»w/»3
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
1.5 mg/»3
Not Found
Not Found
Not Found
1.5 mg/s.3*'
Not Found
50 -*/m3
Not Found
Not Found
Not Found
B5 pp«
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
.2 n»/»3
.05 ing/sT
Not Found
Not Found
.05 »R/»3
Not Found
Not Found
Not Found
.2 mg/»3
Hot Found
Not Found
Not Found
Hot Found
.!*,/»»
.1 «w/mj
Not Found
Not Found
Not Found
. 1 n«/m3
Not Found
Not Found
Not Found
.1 sw/m3
Not Found
.5 ««/»3
.05 mg/i»J
Not Found
.01 sw/,13
. 5 we,/*-1 (
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
.03 mg/B3
Hot Found
Not Found
Not Found
Not Found
Rot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.01 «g/»3
.1 at/m3
Not Found
Not Found
Not Found
.01 o»j/»3
Not Found
.2 mg/rn3
Not Found
Not Found
Not Found
Not Found
Not Found
.1 mg/m3
Not Found
Not Found
Not Found
. 5 at/"3
Not Found
Rot Found
Mot Found
.5 m/»3
Not Found
.3 mg/m"
Not Found
Not Found
.01 «/!»'
2 B e«/sr (.5 )
Hot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
dust; . liag/mj
.0* TO/HI''
Not Found
Mot Found
Not Found
Not Found
Not Found
Not Found
fume Rot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Rot Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Rot Found
Not Found
Rot Found
Not Found
Not Found
Not Found
Rot Found
Hot Found
Not Found
Not Found.
Hot Found
Hot Found
-------
EXHIBIT D 3 (C«s f)
Fnbllihad toziclty guideline for ExtriMl? Huardooi
Substances that could b* und tor UM Lovsl of Coonm
(Continued)
CagJ
IPLH
TLV-1M*
TLV-WA CKn.
ILT-STB.
b
i
to
^
2757188
2763964
2778043
3037727
3048644
3254635
3569571
3615212
3689245
3691358
3734972
3735237
3878191
4044659
4098719
4104147
4170303
4301502
4418660
4835114
5281130
5344821
5836293
6533739
6923224
7440020
7440484
7446095
7446119
7446186
7487947
7550450
7580678
7631892
7637072
7647010
7664393
7664417
7664939
7697372
7719122
7722841
7723140
7726956
7778441
7782414
Thallous Malonabe
Muscimol
Endothlon
Si lane, (4-Aminobuty1)Diethoxymethyl-
VinyLnorbomene*
Phosphoric Acid, Dimethyl ^-(Hethyithio)
Phetiyl Ester
Sulfoxide. 3-Chloropropyl Octyli
Benzimldazole, V,S-Dichloro-2-(Trifluoronwthyl)-
Sulfotep
ChlorophacInona
Am I ton Qxalate
Methyl Phenkapton
Fuberidazole
Biboscanate
Isophorona Diisocyariate
Phosacwtim
Cro tonaldehyde
Fluenetil
Phenol, 2,2'-Thlobis(4-Chloro-6-Methyl)-
Hexamethylenediamine. N,N'-Dibutyl-
Piprotai
Thiourea, (2-Chlorophenyl)-
Countatetralyl
ThaiLous Carbonate
Honocrotophos
Nickel*
Cobalt*
Sulfur Dioxide
Sulfur Trioxide
Thallous Sulfate
Mercuric Chloride
Titanium Tetrachloride
Lithium Hydride
Sodium Arsenate
Boron Trifluoride
Hydrogen Chloride (Gas Only)
Hydtoften Fluoride
Ammonia
SuIfuric Acid
Nitric Acid
Pliosphorus Trichloride
Hydrogen Peroxide (Cone > 521)
Phosphorus
Bromine
Calcium Arsenate
Fluorine
Hot Found
Hot Found
Not Found
Not Found
Hot Found
Not Found
Hot Found
Hot Found
35 ing/m **
Not Found
Hot Found
Not Found
Not Found
Hot Found
Hot Found
Hot Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Potential carcln.**
20 mg/m
100 ppn
Hot Found
20 mg/m3"*
Not Found
Hot Found
55 mg/m3
Hot Found
100 ppm
100 ppn
30 ppm
500 ppn
80 mg/m3
100 ppn
50 ppn
75 ppm
Not Found
10 ppm
100 mg/m3
25 ppm
. 1 mg/m
Not Found
Hot Found
Not Found
Not Found
Hot Found
Hot Found
Not Found
.2 mg/m3
Hot Found
Hot Found
Not Found
Not Found
Hot Found
.045 mg/m (.005 ppn)
Hot Found
Hot Found
Hot Found
Not Found
Hot Found
Hot Found
Not Found
Hot Found
. I log/I3
.25 mg/mj
1 mg/mj
. 1 mg/mj
5 mg/mj (2 ppm)
Hot Found
. 1 mg/m3
.1 mg/m1'
Not Found
.025 mg/m
.2 mg/ni3
--
--
--
18 mg/m3 (25 ppm)
1 mg/m3
5 mg/m (2 ppm)
1.5 mg/m3 (.2 ppn)
1.5 mg/m3 (1 ppn)
. 1 mg/m3
.7 mg/m* (.1 ppn)
.2 mg/m3
2 mg/m ( 1 ppm)
Hot Found
Hot Found
Mot Found
Not Found
Not Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
Mot Found
Hot Found
Hot Found
Not Found
Hot Found
Not Found
Hot Found
Hot Found
Hot Found
Not Found
Hot Found
Not Found
Not Found
Hot Found
10 mg/m (5 ppn)
Hot Found
Hot Found
Not Found
Not Found
Not Found
Hot Found
3 me/in3 (1 ppn) Not Found
7 me/in [5 ppa) Not Found
2.5 ng/«3 (3 ppm) Not Found
27 mg/m3 (35 ppm)
Hot Found
10 at/,3 (4 ppm)
3 mg/m3 (.5 ppn)
Hot Found
Not Found
2 at/a 1.3 ppn)
Hot Found
« mg/Bl3 (2 ppm)
.1 ms/mj
Hot Found
Hot Found
Hot Found
Not Found
Not Found
Not Found
Hot Found
.2 mg/rn3
Not ound
Not ound
Hot ound
Hot ound
Hot ound
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
Not Found
Not Found
.1 «*/n3
Not Found
1 mg/n>3
1 mg/«3
13 mg/n (5 ppn)
Not Found
.1 mg/m3
'-
Hot Found
.025 mg/oi3
,01 mg/m3
--
--
3 PP»
35 mg/mj (35 ppn)
1 mg/mj
5 mg/m3 (2 ppn)
3 mg/mj (.5 ppm)
1.4 mg/» (1 ppn)
.1 mg/m3
.7 (/*,(. 1 ppn)
.01 «g/m3
2 mg/m3 (1 ppn)
3 ng/m (1 ppn)
7 ng/m3 (5 ppm)
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Hot Found
Hot Found
Hot Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
10
Hot Found
Not Found
Not Found
Hot Found
Hot Found
Hot Found
Hot Found
2 (E«gl),
Hot Found
100
1 mg/m3
Hot Found
Hot Found
Hot Found
Hot Found
Not Found
Not Found
7.5
(Sp.g
-------
oo
-J
EXHIBIT D-3 (Caa «>
Miliabwi toxlcitT Bulcblinw for ExtnMly Butdou
Substnca tb«t cooLd b« uMd for th> L«ml of Concern
(ContlmMd)
IDtH
K>
Ox
7782505 Chlorine
7783008 Selenlous Acid
77630(4 Hydrogen Suicide
7783075 Hydrogen Selenlde
7783600 Sulfur Tetratluorlde
7783702 Antimony Pentafluoride
778380* Tellurium Hezafluoride
778*341 Arsenous Trichloride
7784*21 Arslne
7784465 Sodium Atsenlte
77863*7 Mevlnphos
7791120 Th.llous Chloride
7791233 Selenium Oxychlorlde
7803512 Phosphine
8001352 Camphechlor
8023538 Dichlorobenz.Uonlum Chloride*
8065*83 Demeton
10025657 Platlnous Chloride*
10025737 Chromic Chloride
10025873 Phosphorus OrycMoride
10025975 Iridium Tetrachlorlda*
10026138 Phosphorus Fentachloride
10028156 Ozone
10031591 Thallium Sulfate
100*9077 Rhodium Trichloride*
10102188 Sodium Selenlte
10102202 Sodium Tellurite
10102*39 Nitric Oxide
101024*0 Nitrogen Dioxide
1012*502 Potassium Arsenite
101*0871 EthanoL, 1,2-Dichloro-. Acetate
10210681 Cobalt Carbonyl
10265926 Methamidophos
1029*3*5 Boron Trichloride
103118*9 DUllfor
10*76956 Methacrolein Diacetate
12002038 Paris Green
12108133 Manganese, Tricarbonyl Hethylcyclopentadienyl
13071799 Terbufoa
13171216 Phosphamidon
13194*8* Ethoprophos
13*10010 Sodium Selenate
13450903 Gallium Trichloride
13*5*961 Platinum Tetrachloride*
13*63393 Nickel Carbonyl
13*63*06 Iron, Pentacarbonyl-
13494809 Tellurium
30 ppn
Not Found
300 ppn
2 pp.
Hot Found
Not Found
1 PP»
Not Found
6 ppn
Not Found
Not Found
100 mg/m3**
200 ppn
200 mg/m3**
Not Found
20 mg/m3
Not Found
Not Found
Not Found
Mot Found
200 mg/m3
10 pp.
Not Found
Not Found
Hot Found
Not Found
100 ppn
50 ppn
.002 mg/m 15 min .«
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
10000 mg/m »*
Not Found
Not Found
Mot Found
100 mg/m3**
Not Found
Not Found
.0001 ppn
Not Found
Not Found
3 mg/m3 (1 pp.)
.2 mg/m3
1* mg/m3 (10 ppn)
.2 mg/m3 (.05 ppn)
.5 mg/m3
.2 mg/m3 (.02 ppn)
2 mg/m
.2 mg/m3 (.05 ppn)
.2 mg/m3
.1 mg/m3 (.01 pp.)
.1 mg/m3
.* mg/m3 (.3 ppm)
. 5 mg/m3
Not Found
.1 mg/m3 (.01 ppn)
.002 mg/m3
.5 mg/m
.6 mg/m3 (.1 ppn)
Not Found
1 mg/m3 (1 pp.)
.2 mg/m3 (.1 pp.)
. 1 mg/m
1 mg/m
.2 mg/m3
. 1 mg/m3
30 mg/m (25 ppn)
6 mg/m3 (3 pp.)
.2 mg/m3
Not Found
.1 mg/m3
Not Found
Not Found
Not Found
Not Found
.2 mg/m3
. 1 mg/m3
Not Found
Mot Found
Not Found
.2 rng/m3
Not Found
.002 mg/m3
.35 mg/m3 (.05 ppn)
.8 mg/m3 (.1 ppn)
.1 n*/m3
(.1 ppn)
H.T-STP.
9 «g/m3 (3 pp.)
Not Found
21 n>/m3 (15 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.3 mg/m3 (.03 pp.)
Not Found
Not Found
1 «g/m3 (1 pp.)
1 Bg/m3
Not Found
Not Found
Not Found
Not Found
3 mg/m3 (.5 pp.)
Not Found
Not Found
.6m»/m3 (.3 pp.)
Not Found
Not Found
Not Found
Not Found
Not Found
10 mj/m3 (5 pp.)
Not Found
Not Found
Not Found
Not Found
Not Found
Mot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1.6 mg/m3 (.2 pp.)
Not Found
cm* m.
..
.2 Bg/m3
--
.2 mg/m3 (.05 pp.)
2. 5 mg/m3
.5 mg/B3
.2 Bg/B3 (.02 pp.)
.01 Bg/B3
.2 Bg/m3 (.05 ppn)
.01 mg/m3
O'r
1 Bg/m3
.1 Bg/.3
"W >
.2 Bg/»3
.* Bg/B3 (.3 pp.)
.5 mg/B3
Hot Found
1 Bg/B
.002 Bg/.3
1 mg/B
Not Found
Not Found
.2 Bg/B3 (.1 pp.)
.1 -g/-3
.1 «g/«3
.2 Bg/m3
.1 Bg/.3
30 Bg/m3 (25 pp.)
9 -g/B3 (5 pp.)
.01 mg/B3
Not Found
.1 Bg/m3
Not Found
Not Found
Not Found
Hot Found
.01 mg/m
Hot Found
Not Found
Hot Found
.2 mg/m
Not Found
.002 mg/m3
.007 mg/m3 (.001 pp.)
Not Found
.1 mg/m3
ML an.
3 mg/B3 (1 pp.)
20 pp.
;;
--
--
__
-,
..
--
--
--
--
-
--
--
__
__
--
~~~
~-
~-
--
--
~-
5 ms/ra3
--
--
--
__
--
__
--
Not Found
10 (2* ht)
Not Found
Not Found
Hot Found
Not Found
Not Found
1
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Rot Found
Not Found
Not Found
Not Found
1
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
-------
EXHIBIT 0-3 (Cu »)
Published toiicity guideline*; for Extremely Haurdoui
Subataucra that could be used tor the Level of Concern
(Continued)
TLT-1H*
ILT-SIEL
14167181 Salcomine Not Found
15271417 Blcyclo[2.2.1]Heptane-2-Carbonitrlle, Not Found
5-Chloro-6-«((Methylamlno)Carbonyl)Oxy)Imino)-,
(lS-(l-alpha, 2-beta,4-alpha,5-alpha,6E»-
16752775 Methomyl Not Found
16919587 Ammonium Chloroplatinate* Not Found
17702419 Decaborane(U) 20 ppn
17702577 Formparanate Not Found
19287457 Diborane 40 ppn
19624227 Pentaborane 3 ppn
20616120 Osmium Tetroxlde* 1 mg/m3
20830755 Digoxin Not Found
20859738 Aluminum Phosphide Not Found
21548323 Fosthietan Not Found
21564170 Thiocyanic Acid, 2-(Benzothiazolylthlo) Not Found
Methyl Ester"
21609905 Leptophos Not Found
21908532 Mercuric Oxide Not Found
21923239 Chlorthlophos Not Found
22224926 Fenamiphos Not Found
23135220 Oxamyl Not Found
23422539 Formetanate Hydrochlorlde Not Found
23505411 Plrlmifos-Ethyl Not Found
24017478 Triazofos Not Found
24934916 Chlormephos Not Found
26419738 Carbamlc Acid, Methyl-, O-(((2.4-Dimethyl-1, Not Found
3-Dlthlolan-2-Yl)Methylene)Amlno)-
26628226 Sodium Azlde (Na(N3» Not Found
27137855 Trichloro(Dichlorophenyl)Silane Not Found
26347139 Xylylene Dichloride Not Found
26772567 Bromadlolone Not Found
30674807 Methacryloyloxyethyl Isocyanate Not Found
39196164 Thlofanox Not Found
50782699 Phosphonothiolc Acid, Methyl-, S-(2-(Bls Not Found
(l-Methylethyl)Amino)Ethyl) 0-Ethyl Ester
53558251 Pyrlminll Not Found
58270069 Zinc, Dlchloro(4,4-Dlmethyl-5((((Methylamlno) Not Found
Carbonyl)0xy)Imino)Pentanenitrlle)-, (T-4)-
62207765 Cobalt.((2.2'-(l,2-EthanedlyU>ls Not Found
(Nltrilomethylldyne))Bls(6-Fluorophenolato))
Not Found
Not Found
2.5 mg/mj
.002 ms/rn3
.3 mg/m (.05 ppm)
Not Found
.1 mg/m3 (.1 ppm)
.01 mg/nr (.005 ppn)
.002 mg/m3 (.0002 ppm)
Not Found
Not Found
Not Found
Not Found
Not Found
.1 mg/rn3
Not Found
.1 mg/m3
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.3 mg/ni (
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
1 ppm)
Not Found
Not Found
Not Found
Not Found
.9 mg/m3 (.15 ppn)
Not Found
Not Found
.03 mg/m3 (.015 ppm)
.006 mg/m3 (.0006 ppn)
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
.002 mg/m3
.3 mg/m3 (.05 ppm)
Not Found
.1 ing/m3 (.1 ppn)
.01 mg/mj (.005 ppm)
.002 mg/m
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
.1 mg/m
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Hot Found
Not Found
Not Found
Not Found
Hot Found
Not Found
Not Found
Hot Found
These chemicals have been proposed for delisting because they do not meet acute toxicity criteria.
Non-specific chemical
-------
APPENDIX E
SAMPLE PROFILE AND EMERGENCY FIRST AID TREATMENT
EPA has prepared chemical profiles of the ex- and, in some cases, an emergency first aid
tremely hazardous substances (EHSs) listed in treatment guide, are available in hard copy or on
Exhibits C-1 and C-2. Emergency first aid treat- IBM compatible floppy disks. This appendix pro-
ment guides are also available for a number of vides, as an example, the profile and emer-
EHSs. A chemical profile for each substance gency first aid treatment guide for acrolein.
12/87 E-l
-------
CAS Registry Number: 107-02-J
Page 1 of 4
EPA CHEMICAL PROFILE
Date: October 31, 1985
Revision: November 30, 1987
CHEMICAL IDENTITY -- ACROLEIN
CAS Registry Number: 107-02-8
Synonyms: Acraldehyde; Acrylaldehyde; Acrylic Aldehyde; Allyl Aldehyde;
Aqualin; Aqualine; Ethylene Aldehyde; Magnacide H; NSC 8819; Propenal;
2-Propenal; Prop-2-en-l-al; 2-Propen-l-one
Chemical Formula: C3H40
Molecular Weight: 56.06
SECTION I -- REGULATORY INFORMATION
CERCLA (SARA) 1986:
Toxicity Value Used for Listing Under Section 302: LC50 inhalation
(mouse) 0.15 mg/liter/6 hours (*NIOSH/RTECS 1985)
TPQ: 500 (pounds)
RQ: 1 (pounds)
Section 313 Listed (Yes or No): Yes
SECTION II PHYSICAL/CHEMICAL CHARACTERISTICS
Physical State: Liquid
Boiling Point: 126F, 52.5C (*Merck 1983)
Specific Gravity (H20-1): 0.8389 at 20C; 0.8621 at OC (*Merck 1983)
Vapor Pressure (mmHg): 210 at 68F, 20C; 135.71 at 50F, IOC (*Weed
Science Society of America 1974)
Melting Point: -126F, -88C (*Merck 1983)
Vapor Density (AIR-1): 1.94 (*Encyc Occupat Health and Safety 1983)
Evaporation Rate (Butyl acetate-1): Not Found
12/87 E-2
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CAS Registry Number: 107-02-8
Page 2 of 4
ACROLEIN
SECTION II PHYSICAL/CHEMICAL CHARACTERISTICS (continued)
Solubility in Water: Soluble in 2-3 parts water (*Merck 1983)
Appearance and Odor: Colorless or yellowish liquid with extremely sharp,
disagreeable, acrid, irritating odor (*Sax 1979, *CHRIS 1980)
SECTION III -- HEALTH HAZARD DATA
OSHA PEL: TWA 0.1 ppm ( 0.25 mg/m3) (NIOSH 1987, p. 44)
ACGIH TLV: TWA 0.1 ppm (0.25 mg/m3) ; STEL 0.3 ppm (0.8 mg/m3) (ACGIH
1986-87, p. 9)
IDLH: 5 ppm (NIOSH 1987, p. 44)
Other Limits Recommended: EEGL 0.05 ppm (60 minutes) (NRC 1984a, pp. 27-34)
Routes of Entry: Inhalation: Yes (*NIOSH/RTECS 1985)
Skin: Yes (*NIOSH/RTECS 1985)
Ingestion: Yes (*Gosselin 1984)
Health Hazards (Acute, Delayed, and Chronic): Extremely toxic; probable
oral human lethal dose is S-50 mg/kg, between 7 drops and one teaspoon for
a 70 kg (150 Ib.) person (*Gosselin 1984). Inhalation of air containing 10
ppm of acrolein may be fatal in a few minutes (*NRC 1981) . Death from
cardiac failure accompanied by hyperemia and hemorrhage of the lungs and
degeneration of the bronchial epithelium is possible. Acrolein causes
acute respiratory and eye irritation; severe gastrointestinal distress with
slowly developing pulmonary edema (lungs fill up with fluid); and skin
irritation (Gosselin 1984, p. 11-186).
Medical Conditions Generally Aggravated by Exposure: Not Found
SECTION IV FIRE AND EXPLOSION HAZARD DATA
Flash Point (Method Used): -15F, -26C (CC); less than OF, -18C (OC)
(*NFPA 1978)
Flammable Limits:
LEL: 2.8% (*NFPA 1978)
UEL: 31% (*NFPA 1978)
Extinguishing Methods: Dry chemical, alcohol foam, or carbon dioxide.
Water may be ineffective, but can be used to keep containers cool (*NFPA
1978) .
12/87 E-3
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CAS Registry Number: 107-02-8
Page 3 of 4
ACROLEIN
SECTION IV FIRE AND -EXPLOSION HAZARD DATA (continued)
Special Fire Fighting Procedures: In advanced or massive fires, fire
fighting should be done from safe distance or from protected location. Use
dry chemical, alcohol foam, or carbon dioxide. Water may be ineffective,
but should be used to keep fire-exposed containers cool. If a leak or
spill has not ignited, use water spray to disperse vapors. If it is
necessary to stop a leak, use water spray to protect men attempting to do
so. Water spray may be used to flush spills away from exposures and to
dilute spills to nonflammable mixtures (*NFPA 1978). Withdraw immediately
in case of rising sound from venting safety device or any discoloration of
tank due to fire. Isolate for 1/2 mile in all directions if tank car or
truck is involved in fire (DOT 1987, Guide 30).
Unusual Fire and Explosion Hazards: Under fire conditions, polymerization
may occur. If inside a container, violent rupture of the container may
take place (*NFPA 1978) .
NFPA Flammability Rating: 3
SECTION V -- REACTIVITY DATA
Stability: Unstable: Yes (*Merck 1983)
Stable:
Conditions to Avoid: Exposure to alkalis or strong acids (*Encyc
Occupat Safety and Health 1983) or to oxygen (*NFPA 1978).
Incompatibility (Materials to Avoid): Alkalis or strong acids act as
catalysts, causing a condensation reaction and liberating energy. Reaction
may be very rapid and violent (*Encyc Occupat Health and Safety 1983).
Readily converted by oxygen to hazardous peroxides and acids (*NFPA 1978).
Hazardous Decomposition or Byproducts: When heated to decomposition, it
emits highly toxic fumes (*Sax 1975).
Hazardous Polymerization: May Occur: Yes (*NFPA 1978)
May Not Occur:
Conditions to Avoid: Elevated temperatures, such as fire conditions.
(Polymerization inside container could cause violent rupture of
container under fire conditions.) (*NFPA 1978)
12/87 E-4
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CAS Registry Number: 107-02-8
Page 4 of 4
ACROLEIN
SECTION VI -- USE INFORMATION
Acrolein is used in manufacture of colloidal forms of metals; making
plastics, perfumes: as a warning agent in methyl chloride refrigerant; and
has been used in military poison gas mixtures (*Merck 1983). It is also
used as an intermediate in the production of glycerine, methionine, acrylic
acid, and esters (*SRI). Acrolein is also an intermediate for glycerol,
polyurethane, polyester resins, and Pharmaceuticals (*Hawley 1981).
Additionally, acrolein is used as an aquatic herbicide, biocide, slimicide
(*Farm Chemicals Handbook 1984) and molluscicide (^Kearney and Kaufman 1975)
SECTION VII -- PRECAUTIONS FOR SAFE HANDLING AND USE
(Steps to be Taken in Case Material is Released or Spilled)
When handling acrolein, no skin surface should be exposed (*NFPA 1978).
Remove all ignition sources. Ventilate area of spill or leak. For large
quantities, cover with sodium bisulfite, add small amount of water and mix.
Then, after 1 hour, flush with large amounts of water and wash site with
soap solution. Liquid should not be allowed to enter confined space, such
as sewer, because of possibility of explosion. Take up spill for disposal
by absorbing it in vermiculite, dry sand, or earth and disposing in a
secured landfill or combustion chamber (*NIOSH 1981).
SECTION VIII -- PROTECTIVE EQUIPMENT FOR EMERGENCY SITUATIONS
For emergency situations, wear a positive pressure, pressure-demand, full
facepiece self-contained breathing apparatus (SCBA) or pressure-demand
supplied air respirator with escape SCBA and a fully-encapsulating, chemical
resistant suit. See the introduction and comment section at the beginning
of the profiles for additional information.
Suit Material Performance (based on EPA/USCG "Guidelines", 1987)
(Chemical Resistance/Amount of Data):
Butyl: Good/Limited
Butyl/Neoprene: Poor/Many
CPE: Poor/Many
Nitrile: Poor/Many
Viton: Poor/Many
Viton/Chlorobutyl: Good/Limited
SECTION IX EMERGENCY TREATMENT INFORMATION
See Emergency First Aid Treatment Guide
12/87 E-5
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Emergency First Aid Treatment Guide
for
ACROLEIN
(107-02-8)
This guide should not be construed to authorize emergency personnel to
perform the procedures or activities indicated or implied. Care of persons
exposed to toxic chemicals must be directed by a physician or other competent
authority.
Substances Characteristics:
Pure Form - Colorless or slightly yellow liquid.
Odor - Extremely sharp.
Commercial Forms - 92 to 99% pure liquid.
Uses - Chemical intermediate, manufacture of plastics, perfumes, paper, colloidal
forms of metals; component of military poison gas mixture, liquid fuel,
antimicrobial agent, aquatic pesticide; warning agent in methyl chloride
refrigerant.
Materials to Avoid - Strong acid, alkali, caustic soda, oxidizers, oxygen (except
for use in emergency life support).
Other Names - Acquinite, acraldehyde, acrylaldehyde, acrylic aldehyde, allyl
aldehyde, ethylene aldehyde, Magnacide H, 2-Propenal.
Personal Protective Equipment: See Chemical Profile Section VIII.
Emergency Life-Support Equipment and Supplies That May Be Required:
Compressed oxygen, forced-oxygen mask, soap, water, milk, activated charcoal,
saline cathartic or sorbitol.
Signs and Symptoms of Acute Acrolein Exposure:
Warning: Acrolein is highly irritating to skin and mucous membranes. Caution is
advised.
Signs and symptoms of acute exposure to acrolein may be severe and include
shortness of breath, tightness of chest, pulmonary edema, and coma. Lacrimation
(tearing), nausea, vomiting, and diarrhea may occur. Acrolein will irritate or
burn the skin and mucous membranes. Eye contact may cause irritation, swelling,
discharge and/or corneal injury.
12/87 E-6
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ACROLEIN
Emergency Life-Support Procedures:
Acute exposure to acrolein may require decontamination and life support for the
victims. Emergency personnel should wear protective clothing appropriate to the
type and degree of contamination. Air-purifying or supplied-air respiratory
equipment should also be worn, as necessary. Rescue vehicles should carry
supplies such as plastic sheeting and disposable plastic bags to assist in
preventing spread of contamination.
Inhalation Exposure:
1. Move victims to fresh air. Emergency personnel should avoid self-exposure
to acrolein.
2. Evaluate vital signs including pulse and respiratory rate and note any
trauma. If no pulse is detected, provide CPR. If not breathing, provide
artificial respiration. If breathing is labored, administer oxygen or other
respiratory support.
3. Obtain authorization and/or further instructions from the local hospital for
administration of an antidote or performance of other invasive procedures.
4. RUSH to a health care facility.
Dermal/Eye Exposure:
1. Remove victims from exposure. Emergency personnel should avoid self-
exposure to acrolein.
2. Evaluate vital signs including pulse and respiratory rate and note any
trauma. If no pulse is detected, provide CPR. If not breathing, provide
artificial respiration. If breathing is labored, administer oxygen or
other respiratory support.
3. Remove contaminated clothing as soon as possible (and place in plastic
bag) .
4. If eye exposure has occurred, eyes must be flushed with lukewarm water for
at least 15 minutes.
5. Wash exposed skin areas THOROUGHLY with soap and water.
6. Obtain authorization and/or further instructions from the local hospital for
administration of an antidote or performance of other invasive procedures.
7. RUSH to a health care facility.
12/87 E~7
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ACROLEIN
Ingestion Exposure:
1. Evaluate vital signs including pulse and respiratory rate and note any
trauma. If no pulse is detected, provide CPR. If not breathing, provide
artificial respiration. If breathing is labored, administer oxygen or other
respiratory support.
2. Obtain authorization and/or further instructions from the local hospital for
administration of an antidote or performance of other invasive procedures.
3. Give the victims water or milk: children up to 1 year old, 125 mL (4 oz
or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults,
250 mL (8 oz or 1 cup). Water or milk should not be given if victims are
not conscious and alert.
4. Activated charcoal may be administered if victims are conscious and alert.
Use 15 to 30 gm (1/2 to 1 oz) for children, 50 to 100 gm (1-3/4 to 3-1/2 oz)
for adults, with 125 to 250 mL (1/2 to 1 cup) of water.
5. Promote excretion by administering a saline cathartic or sorbitol to
conscious and alert victims. Children require 15 to 30 gm (1/2 to 1 oz)
of cathartic; 50 to 100 gm (1-3/4 to 3-1/2 oz) is recommended for adults.
6. RUSH to a health care facility.
12/87
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APPENDIX F
FIRE AND REACTIVITY HAZARDS
Congress mandated in Title III of SARA that local
emergency planning committees (LEPCs) focus
initially on acute toxicity hazards related to ex-
tremely hazardous substances (EHSs). Other
hazards may warrant consideration in emer-
gency preparedness and response planning.
This appendix is a brief discussion of fire and re-
activity hazards.
Fire Hazards. Flammable materials, particularly
those that will ignite at a relatively low tempera-
ture (i.e., that have low flash points), clearly
may be a hazard to communities. There are
several major types of fires that may be associ-
ated with hazardous material discharges, with
the type of fire being a function not only of the
characteristics and properties of the spilled sub-
stance but the circumstances surrounding the
accident. The types are:
Flame Jets. Tanks, cylinders, and
pipelines which contain gases under
pressure (i.e., compressed gases or
liquefied gases) may discharge gases
at a high speed if they are somehow
punctured or broken during an acci-
dent. If the gas is flammable and en-
counters an ignition source, a flame jet
of considerable length (possibly hun-
dreds of feet) may form from a hole
less than a foot in diameter.
BLEVEs. Boiling Liquid Expanding Va-
por Explosions (BLEVEs) are among
the most feared events when tanks of
hazardous materials are exposed to
fire or physical damage or other events
that cause excessive pressures within
the tank. A BLEVE could occur when
flames impinge upon the vapor space
(unwetted internal surface) of the tank
where there is no liquid to absorb heat.
As the vapor space is heated, the
pressure inside the tank (even after
the relief valve opens) becomes so
great that it eventually vents itself
through the weakest area of the tank.
As the pressure inside is increasing,
the flames weaken the structural integ-
rity of the tank, thus creating the con-
ditions for venting. This sudden vent-
ing of pressure and vaporization of
product involves the violent rupture of
the container, with rocketing frag-
ments. If the container stored a flam-
mable liquid or gas, a large rising fire-
ball will form, the size of which will vary
with the amount of hazardous material
present.
Vapor or Dust Cloud Fires and Explo-
sions. Vapors evolved from a pool of
volatile liquid or gases venting from a
punctured or otherwise damaged con-
tainer, if not ignited immediately, will
form a plume or cloud of gas or vapor
that moves in the downwind direction.
If this cloud or plume contacts an igni-
tion source, a wall of flame may flash
back towards the source of the gas or
vapor, sometimes with explosive force.
Similarly, fires may flash through air-
borne clouds of combustible dusts.
Dusts may explode under some condi-
tions (e.g., grain elevator explosions).
Liquid Pool Fires. A liquid pool fire is
a fire involving a quantity of liquid fuel
such as gasoline spilled on the surface
of the land or water. An added compli-
cation is that the liquid fuel, depending
on terrain, may flow downslope from
the accident site and into sewers,
drains, surface waters, and other
catchments.
Flammable Solid Fires. A "flammable
solid" may cause fires through friction
or retained heat from manufacturing or
processing. It can be ignited readily
and when ignited burns vigorously and
persistently. Included in this class are
spontaneously combustible
(pyrophoric) and water-reactive mate-
rials. Fires involving these materials
present a difficult challenge to firefight-
ers, particularly when water cannot be
used.
12/87
F-1
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Reactivity Hazards. Some of the more common
and/or dangerous types of reactions, and how
they may alter the outcome of an accidental re-
lease, are outlined below:
Reactions with Water or Moist Air.
Some substances generate heat when
mixed with water. Some strong acids
may evolve large amounts of fumes
when in contact with water or moisture
in the air. These fumes, which may
consist of a mixture of fine droplets of
acid in air and acid vapors, are usually
highly irritating, corrosive, and heavier
than air. Other materials may ignite,
evolve flammable gases, or otherwise
react violently when in contact with
water. Knowledge of the reactivity of
any substance with water is especially
important when water is present in the
spill area. Uninformed firefighters can
worsen a situation by applying water to
the water-reactive chemicals.
Reactions with Combustible Organic
Materials. Strong oxidizing or reducing
agents have the common characteris-
tic of being able to decompose organic
materials and react with a variety of in-
organic materials while generating
heat, flammable gases, and possibly
toxic gases. If the heat generated is
sufficient to ignite a combustible mate-
rial or a flammable gas (when con-
fined), either a fire or explosion may
occur.
Polymerization Reactions. Many plas-
tics are manufactured by means of a
polymerization reaction in which mole-
cules are linked together into long
chains. Some of the chemicals capa-
ble of polymerizing have a strong ten-
dency to do so even under normal am-
bient conditions and are especially
prone to polymerize if heated above a
certain temperature or if contami-
nated. Once polymerization starts, a
chain reaction may occur that devel-
ops high pressures and temperatures
within containers and can lead to pos-
sible rupture of the container and dis-
charge of flammable and/or toxic
gases if safety and control systems
malfunction or are lacking.
Decomposition Reactions. Some
chemical molecules are unstable and
can break apart in a runaway reaction
once the process is initiated. Various
contaminants or heat may start a reac-
tion. Containers may rupture or vent
various flammable and/or toxic gases.
Decomposition and polymerization re-
actions are hazardous only if they be-
come uncontrolled and start a chain
reaction that cannot be stopped with
available equipment, materials, or
safety systems.
Corrosivity. The process by which a
chemical gradually eats away or dis-
solves another material is referred to
as corrosion. It represents yet another
type of chemical reactivity that must
be considered in assessing the haz-
ards of any given material. The word
"corrosive" is also used descriptively
to indicate that a substance may cause
chemical burns of the skin, eyes, or
other bodily tissues.
Other Reactivity Hazards. In addition
to the types of reactions discussed
above, hazards can result from the fol-
lowing situations:
o The combination of various chemi-
cals may produce new chemicals
with hazards quite different and
possibly more severe than those
associated with the original mate-
rials.
o Some combinations may result in
spontaneous fires: spontaneous
explosions: formation of sub-
stances which will ignite or ex-
plode if shocked, heated or sub-
jected to friction: generation of
toxic gases, liquids, or solids; or
generation of flammable gases,
liquids, or solids.
12/87
F-2
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APPENDIX G
EQUATIONS USED FOR THE ESTIMATION OF VULNERABLE ZONES
G. 1 INTRODUCTION
Chapter 3 presents a tabular method for estimation of the radius of the vulnerable zone (VZ) for
releases of gases, liquids, and solids. This appendix contains the equations used to derive the tables
found in Chapter 3. Section G.2 discusses the derivation of the release rate term of the vulnerable
zone calculation. For liquids, a liquid factor including many of the variables that affect rate of evapora-
tion is used for the estimate: this factor is also described in Section G.2.
Section G.3 discusses the derivation of the relationship between downwind distance, as a function of
rate of release, and level of concern (LOG) as presented in Exhibits 3-1 to 3-4 in Chapter 3.
The calculations are based on applications of the dispersion model described in the Workbook of
Atmospheric Dispersion Estimates, Public Health Service Publication No. 999-AP-26, 1970 (popularly
known as Turner's Workbook). Estimates of dispersion distribution parameters are those of Briggs,
based on McElroy and Pooler's experiments, given in the Handbook of Atmospheric Diffusion, Depart-
ment of Energy Publication No. DOE/TIC-11223, 1982.
The following assumptions are made concerning the circumstances of the credible worst case release
(these assumptions are designed to be conservative and represent adverse conditions for screening
purposes) :
Rural flat terrain with no obstacles (e.g., hills) that would interfere with the downwind move-
ment of the plumes (obstacles would increase the dispersion capability of the plume);
Ground level release (releases from elevated sources tend to disperse more readily than
ground level releases);
F Stability and 1.5 meters per second (3.4 miles per hour) wind speed, representing stable
air and low wind speed (the VZ calculated under these conditions is larger than that calcu-
lated under conditions usually considered typical); and
Continuous release (consistent with a catastrophic loss) rather than a brief "puff."
The following assumptions are made concerning the substance released:
There is no phase change and the plume is at ambient temperature (phase changes and
temperature changes would cause variations in dispersion and evaporation (volatilization)
rates).
The substance released is neutrally buoyant in air. Dense gases are treated the same way as
neutrally buoyant gases in this analysis. (The behavior of a dense gas is different, but for the
calculations presented in this appendix, the concentrations along the centerline of the plume
are considered. These concentrations are comparable for dense gases and neutrally buoy-
ant gases);
A Gaussian distribution of the plume's spread, in both horizontal and vertical planes, was
assumed in the dispersion estimates:
Gases are released over a ten minute period:
Liquids are instantaneously spilled from containment onto a flat, level surface forming a
0.033 ft (1 cm) deep pool and are allowed to evaporate at ambient or boiling conditions:
Solids in powder form (<100 microns particle size) behave like gases and are also released in
ten minutes:
12/87 G-7
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Solids in solution are assumed to behave as a finely dispersed aerosol and are released in
ten minutes:
Solids in molten form are assumed to behave as liquids. The quantity molten is assumed to
lose containment instantaneously, forming a 0.033 ft (1 cm) deep pool on a flat, level surface
and volatilizing at its melting point temperature: and
Solids in "brick" form (i.e., not powdered, in solution, vaporized, or molten) are not likely to
be released.
G.2 ESTIMATION OF AIRBORNE QUANTITY RELEASED FOR LIQUIDS
The rate of release of a chemical is needed for calculation of the radius of the VZ. It is dependent on
the quantity of chemical released, the nature of the release scenario (i.e., pool of liquid, release of
pressure relief valve, etc.), and the properties of the chemical released. For spilled pools of chemi-
cals, the rate of release is usually taken to be the evaporation rate (rate of volatilization). Using the
assumptions presented above, the following equation is used to calculate the rate of release to air for
liquids (in Ibs/min) :
(1) QR = (60 sec/mi n xMWxKxAxVPx (929cm2/ft2,
R x (T1+273) x (760 mm Hg/atm) x 454 g/lb
where: QR = Rate of release to air (Ibs/min);
MW = Molecular weight (g/g mole);
K = Gas phase mass transfer coefficient (cm/sec);
A = Surface area of spilled material (ft2);
VP = Vapor pressure of material at temperature T1 (mm Hg);
R
T1
= 82.05 atm cm /g mole K; and
(Clement 1981)
= Temperature at which the chemical is stored ( C).
The equation for the evaporation rate (rate of volatilization) can be rewritten as follows:
(2) QR= 0.162 x MW x K x A x VP
R (T1+273)
K can be estimated based on a known value for a reference compound as follows:
(3) K = Kref x (MWref/MW)
1/3
(Clement 1981)
Using water as the reference compound:
(4) K ref K water=0.25 x (u)
0.78
(Mackay and Matsugo 1973)
where: u = Windspeed (m/sec)
12/87
G-2
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Combining Equations 3 and 4:
(5) K = 0.25 (u) °78 x (18/MW) 1/3
Combining equations for QR and K yields the following equations:
(6) QR =
0.162 x 0.25 x (u)078 x (18)1/3 x MW2/3 x Ax VP
(7) QR =
R x (T1 + 273)
0.106 x (u) OJ8 x MW2/3x Ax VP
R x (T1 + 273)
Calculation of the surface area (A) of the spilled material is carried out as described in the following
sections.
G.2.1 CALCULATION OF SURFACE AREAS OF POOLS OF SPILLED LIQUIDS
For diked areas, the surface area is assumed to be the area inside the dike (unless the surface area of
the spill is smaller than the diked area). If the area is not diked, the following assumptions are used to
calculate the surface area of the spill:
Density = 62.4 Ib/ft3 (i.e., all liquids are assumed to have the same density as water)
Depth of pool is 0.033 ft (I cm)
The surface area of the spilled liquid (ft2) is:
v ' 62.4
where: QS = Quantity spilled (Ibs); and
A = Surface area (ft2).
Substituting for A in Equation 7, the quantity released to air per minute (QR) can be estimated as
follows:
0.106 x (u)078 x MW 2/3 x 0.49 x QS x VP
/Q\ np -
w u 82.05 x (T1 + 273)
12/87 G-3
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G. 2.2 LIQUID FACTORS
Equation (9) may be simplified by separating all the chemical specific parameters, such as vapor
pressure and molecular weight, and the temperature into a "liquid factor." The "liquid factor" there-
fore includes all the terms of Equation (9), except the quantity spilled (QS) and the wind speed term.
For ambient temperatures, VP is the vapor pressure measured at T1 (ambient temperature). The
liquid factor at ambient conditions (LFA) is calculated as:
(10) LFA =
0.106 x MW2/3x 0.49 x VP
82.05 x (T1 + 273)
For a liquid at its boiling temperature, VP is assumed to be 760 mm Hg at T1, the normal boiling point
of the liquid. The liquid factor at the boiling point (LFB) is calculated as:
(11) LFB =
0.106 x MW2/3x 0.49 x 760
82.05 x (Boiling point + 273)
For a solid at its melting point, VP is the vapor pressure measured at T1 (melting point). The liquid
factor at the melting point (LFM) is calculated as:
0.106 x MW2/3x 0.49 x VP melting
~ 82.05 x (melting point + 273)
The liquid factor multiplied by the quantity spilled and the wind speed term (u078) gives the airborne
quantity release rate:
(13) QR = QS x u078 x (LFA, LFB, or LFM)
For diked areas:
(14) QR =
(LFA, LFB, or LFM) x Diked Area (ft2) x u°78
0.49
Liquid factors for listed substances that are liquid at ambient conditions, or solid with potential for
handling at molten state, are listed in Appendix C.
G.3 ESTIMATION OF A VULNERABLE ZONE
The following equation, based on Turner's Workbook, was used to derive the vulnerable zone radius.
The concentration downwind of a release is given by:
QR
(15) C= (Turner 1970, Equation 3.4)
77-CTy az u
12/87 G-4
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for a ground level release with no effective plume rise where:
C = Airborne concentration, gm/m3
QR = Rate of release to air, gm/sec
n == 3.141
ay az = dispersion deviation, horizontal (y), and vertical (z)
u = windspeed, m/sec
This equation represents the steady state concentration at some distance downwind and is applicable
for release ranging from 10 minutes to one hour.
(16) «ry
3.141 x u x c
0.318 x QR (g/sec)
ay az = ~
u x c
QR (Ib/min) = QR (g/sec) x (60 sec/min x 1 lb/454 g)
QR (Ib/min) = 0.132 x (QR g/sec)
QR (g/sec) = (QR g/sec) / 0.132
0.318 x QR (Ibs/min)
az= 0.312 x u x C
2.41 x QR (Ib/min)
As downwind distance increases, th©-y az product increases. For practical use to be made of the
diffusion formula, numerical values of the diffusion coefficient^ and CTZ must be determined. To
deal with the resulting wide variations in turbulent properties, meteorologists have introduced stability
classes into which atmospheric conditions are classified. Briggs (1973) used McElroy and Pooler's
1968 diffusion experiment to develop formulas for ay and az as functions of distance, shown in Exhibit
G-1. To use these equations to determine distances, it will be necessary to use trial and error meth-
ods or a computer. For the development of this guidance, both rural (open country) and urban condi-
tions for F atmospheric stability (the most stable class used for this guidance) and D atmospheric
stability (neutral class assumed for overcast conditions during day or night, regardless of wind speed)
were used.
12/87 G-5
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EXHIBIT G-7
FORMULAS RECOMMENDED BY BRIGGS (1973)
for ov(d) and oz(d) (10 2< d < 104 m)
Pasquill
Stability
Type CTy.m az,m
Open-Country Conditions
A 0.22d(1+0.0001d)-1/2 0.20d
B 0.16d(1+0.0001d)-1/2 0.12d
C 0.11d(1+0.0001d)-1/2 0.08d(1+0.0002d)-1/2
D 0.08d(1+0.0001d)-1/2 0.06d(1+0.0015d)-1/2
E 0.06d(1+0.0001d)-1/2 0.03d(1+0.0003d)-1
F 0.04d(1+0.0001d)-1/2 0.016d(1+0.0003d)-1
Urban Conditions
A-B 0.32d(1+0.0004d)-1/2 0.24d(l + 0.001d)1/2
C 0.22d(l + 0.0004d)-1/2 0.20d
D 0.16d(l + 0.0004d)-1/2 0.14d(1+0.0003d)-1/2
E-F 0.11d(1+0.0004d)-1/2 0.08d(l + 0.00015d)-1/2
NOTE.- d = downwind distance.
12/87 G-6
-------
G.4 REFERENCES
Briggs, G.A. 1973. Diffusion Estimation for Small Emissions. ATDL Contribution File No. 79. Atmos-
pheric Turbulence and Diffusion Laboratory.
Clement Associates Inc. 1981. Mathematical Models for Estimating Workplace Concentration Levels:
A Literature Review, EPA Contract 88-01-6065. Prepared for ETD/EPA.
Hanna, F.R., Briggs, G.A. and Hosker, R.P. 1982. Handbook of Atmospheric Diffusion, Department of
Energy Publication No. DOE/TIC-11223.
Mackay, Douglas and Matsugo, Ronald S., "Evaporation Rates of Liquid Hydrocarbon Spills on Land
and Water." The Canadian Journal of Chemical Engineering, Vol. 51, August, 1973.
McElroy, J.L. and Pooler, F. 1968. St. Louis Dispersion Study Report AP-53. U.S. Public Health
Service, National Air Pollution Control Administration.
Turner, B. 1970. Workbook of Atmospheric Dispersion Estimates. Public Health Service Publication
No. 999-AP-26.
12/87 G-7
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APPENDIX H
GENERAL CONSIDERATIONS FOR EVACUATION
OR IN-PLACE SHELTERING
An accidental release of hazardous materials
sometimes necessitates evacuation of people
from certain areas to prevent injury or death.
These areas can include those directly affected
by toxic fumes and gases or fire and those areas
that may be potentially affected during the
course of the incident (e.g., through wind shift,
a change in site conditions). Evacuation is a
complex undertaking. Rather than attempting to
provide specific step-by-step guidance for each
possible scenario, we will discuss in this appen-
dix general considerations that should be ad-
dressed in advance by the local emergency
planning committee (LEPC). Specifically, this
appendix will discuss: deciding whether evacu-
ation is appropriate and necessary (Section
H.1); steps in conducting an evacuation (Sec-
tion H.2); and in-place sheltering as an alterna-
tive to evacuation (Section H.3).
This document will not give you evacu-
ation distances nor provide definitive guid-
ance on estimating evacuation zones.
Decisions about whether or not to evacu-
ate as well as about evacuation distances
are incident-specific and must be made
at the time of an actual release.
The estimated vulnerable zones should be
used for planning purposes only and
should not be used as an evacuation zone
H.1 MAKING A DECISION ON EVACUATION
The first evacuation consideration, determining
whether an evacuation is necessary, involves a
comprehensive effort to identify and consider
both the nature of and circumstances surround-
ing the released hazardous material and its ef-
fect on people. No safe exposure levels have
been established for the extremely hazardous
substances (EHSs) and therefore it is not possi-
ble to calculate evacuation distances using the
methods outlined in this guidance. Section H. 1.1
discusses how hazardous conditions and inher-
ent properties of the released materials affect
evacuation decisions. Section H. 1.2 discusses
how life safety factors affect the decision on
whether or not to order an evacuation.
The Department of Transportation's (DOT's)
Emergency Response Guidebook provides initial
isolation and evacuation distances for transpor-
tation incidents. The evacuation distances given
in the guidebook are preceded by the following
advice: "The [initial isolation/evacuation] table
is useful only for the first twenty to thirty minutes
of an incident.. . . There are several good rea-
sons for suggesting that the use of the table be
limited specifically to the initial phase of a no-
fire spill incident during transport. The best cal-
culations for these tables are not reliable for
long vapor travel times or distances. At their
best they are estimates for a cool, overcast
night with gentle and shifting winds moving a
non-reactive, neutrally-buoyant vapor." The
DOT Emergency Response Guidebook is in-
tended to help first responders to make in-
formed judgments during the initial phases of a
hazardous materials transportation incident.
LEPCs are cautioned not to use it as a substitute
for a specific plan for responses to hazardous
materials incidents.
H. 1.1 Hazardous Conditions Affecting
Evacuation Decisions
Numerous factors affect the spread of hazard-
ous substances into the area surrounding a leak-
ing/burning container or containment vessel.
Evacuation decision-makers must carefully con-
sider each of these factors in order to determine
the conditions created by the release, the areas
that have been or will be affected, and the
health effects on people. The factors that affect
evacuation include amount of released mate-
rial^), physical and chemical properties of the
released material(s), health hazards, dispersion
pattern, atmospheric conditions, dispersion me-
dium, rate of release, and potential duration of
release. Each of these factors is explained be-
low.
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To begin with, it is necessary to know the mate-
rial's physical and chemical properties, includ-
ing :
Physical State - solid, liquid, or gas:
Odor, color, visibility;
Flammability: flashpoint, ignition tempera-
ture, flammable limits;
Specific Gravity: whether material sinks or
floats on water:
Vapor Density: whether vapors rise or re-
main near ground level;
Solubility: whether material readily mixes
with water;
Reactivity: whether material reacts with air,
water, or other materials:
Crucial Temperatures: boiling point, freez-
ing point.
It is also necessary to know the health effects
resulting from a short-term exposure:
Acute or chronic hazards:
Respiratory hazards:
Skin and eye hazards: and
Ingestion hazards.
Another consideration is the dispersion pattern
of the released hazardous material, for exam-
ple:
Does the release follow the contours of the
ground?
Is it a plume (vapor cloud from a point
source) ?
Does the release have a circular dispersion
pattern (dispersing in all directions)?
Atmospheric conditions must also be addressed
when determining the appropriate evacuation re-
sponse to a hazardous material release. Atmos-
pheric conditions that may affect the movement
of material and evacuation procedures include:
Wind (speed and direction);
Temperature:
Moisture (precipitation, humidity);
Air dispersion conditions (inversion or nor-
mal); and
Time of day (daylight or darkness).
Other considerations important in making evacu-
ation decisions include:
Whether the hazardous material is being
released into air, land, and/or water and its
concentration in air or water:
Size and potential duration of the release:
and
Rate of release of the material, as well as
the projected rate (the rate of release may
change during the incident).
H.1.2 LIFE SAFETY FACTORS TO CONSIDER
IN PLANNING AN EVACUATION
Life safety factors to consider when planning an
evacuation include the number and types of
people that require evacuation and the re-
sources needed to conduct a safe and effective
evacuation. Whether the people are actually lo-
cated in an area that contains hazards or are
located in an area that is only threatened by haz-
ards is a critical component of evacuation plan-
ning .
Populations in a Hazardous Area
When considering people who are actually lo-
cated within a hazardous area, the LEPC must
address whether responsible authorities should
order people to remain indoors, rescue individu-
als from the area, or order a general evacu-
ation. The "remain indoors" option should be
considered when the hazards are too great to
risk exposure of evacuees. (See Section H.3 for
further discussion of in-place sheltering.) It may
be necessary to rescue people from the hazard-
ous area, but this would involve supplying pro-
tective equipment for evacuees to ensure their
safety. The third option is to order a general
evacuation. In this case people must evacuate
by means of private transportation or by trans-
portation provided by local or State government,
a private sector company, or volunteer groups.
Populations in a Threatened Area
For an area that is only threatened by a hazard-
ous release, it should be determined whether
12/87
H-2
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potential evacuees can be evacuated before
hazards reach the area. To safely evacuate the
area, a significant amount of lead time may be
required. Depending on the hazards and their
movement (as described above), evacuation
assistance personnel may not have much lead
time.
Identifying People to be Evacuated
Numerous factors must be considered to ensure
that an evacuation is conducted in a safe and
effective manner, including how many people
will be involved, where they are located, their
degree of mobility, and whether there are any
communication barriers to address. Potential
evacuees may be found in many different loca-
tions:
Residences
Educational institutions
Medical institutions
Health care facilities
Child care facilties
Correctional facilities
Offices
Commercial establishments
Manufacturing/industrial/research facilities
Government facilities
Places of public assembly
Parks and other recreational areas
Sporting arenas/stadiums
Roadways
In addition to the above considerations, the
LEPC must determine what persons will require
special assistance in evacuating the area and
whether there exist any barriers to communica-
tion between evacuees and evacuation assis-
tance personnel. Special consideration should
be given to:
Persons lacking private transportation
The elderly
Children
Handicapped persons
The infirm
Prisoners
Non-English speaking persons
Resources Needed
To accomplish a safe and effective evacuation,
the LEPC must provide for appropriate and suffi-
cient resources, including personnel, vehicles,
and equipment appropriate for emergency situ-
ations.
Among the agencies that would likely supply per-
sonnel during an evacuation operation are the
Red Cross, police department, fire department,
and emergency medical service agencies.
In addition to personnel, specially equipped vehi-
cles may have to be put in service, including:
Lift-equipped buses and taxi cabs for
handicapped persons:
Ambulances for infirm and handicapped
persons: and
Vehicles for transporting persons lacking
private transportation.
Making prior arrangements to ensure the avail-
ability of these vehicles in times of emergency
will result in a more timely and effective evacu-
ation.
The type of equipment that will be necessary
during an evacuation includes:
Protective gear for evacuation assistance
personnel (e.g., masks to protect the
lungs, protective covering for the skin and
eyes);
Protective gear for evacuees who may
have to be taken through an area of heavy
chemical concentration:
Communication equipment (e.g. portable
and mobile radios, mobile public address
systems, bull horns); and
Evacuation tags (a tag or marker attached
to a door to indicate that the occupants
have been notified) for buildings that have
been evacuated.
H.2 CONDUCTING AN EVACUATION
Should it be decided that an area is to be evacu-
ated, the evacuation must be conducted in a
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H-3
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well-coordinated, thorough, and safe manner.
Evacuation involves a number of steps, which
include assigning tasks to evacuation assistance
personnel, informing potential evacuees, provid-
ing transportation as necessary, providing emer-
gency medical care as necessary, providing se-
curity for evacuated areas, and sheltering
evacuees as necessary.
H.2.1 Evacuation Tasks
The first step is to assign tasks to evacuation
assistance personnel. These tasks include infor-
mation concerning:
The specific area to evacuate
Protective gear to be worn
Instructions to be given to evacuees
Transportation of evacuees who are with-
out private transportation
Assistance to special populations
Shelter locations
Security for evacuated areas
Traffic and pedestrian control
Communication procedures
The progress of the evacuation efforts must be
monitored by those in charge who should also
provide continuous direction to evacuation assis-
tance personnel.
H.2.2 Evacuation Warning and Instruction
The second step in an evacuation is to inform
people that they must evacuate and to provide
them with accurate instructions. This procedure
can be accomplished in several ways:
Door-to-Door. Requires significant man-
power; is a slow process but is very thor-
ough.
Public Address System (from a mobile unit
or within a building). Requires less man-
power than a door-to-door evacuation and
is quicker to accomplish but is not as thor-
ough.
Combination of Door-to-Door and Public
Address System. For some sections of an
area door-to-door notification may be
more expeditious, whereas in other areas
evacuation instructions given via a public
address system may be adequate and less
time consuming.
The potential evacuees might also be alerted to
the emergency by means of an alerting and
warning system that prompts them to tune in to
their radios for instructions from the Emergency
Broadcast System or a similar broadcast sys-
tem.
H.2.3 Movement of Evacuees
The third step in an evacuation is to provide
movement assistance to evacuees. Movement
assistance includes:
Arranging transportation for evacuees who
are without private transportation:
Arranging for movement of the infirm and
handicapped:
Traffic control:
Encouraging evacuees to move along in an
expeditious manner.
Buses and/or vans will be needed for transporta-
tion of large groups of evacuees. Evacuating
the infirm and handicapped will involve lift-
equipped buses, vans, and/or ambulances.
Traffic control involves restricting access of ve-
hicles into the evacuated area and facilitating
speedy vehicular movement out of the evacu-
ation area.
H.2.4 Emergency Medical Care for Evacuees
Should evacuees become exposed to hazards
during an evacuation, emergency medical care
must be provided. If a hazardous vapor cloud
were to move suddenly upon a large group of
people being evacuated, numerous casualties
would be possible. For this reason, it is advan-
tageous to have emergency medical service
(basic and advanced life support) units standing
by in case they are needed.
H.2.5 Security in Evacuated Areas
Once an area is evacuated, law enforcement
personnel must guard the area to prevent loot-
ing and other unauthorized actions. Security
forces operating in or around an evacuated area
must be dressed in appropriate chemical pro-
tective gear.
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H-4
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H.2.6 Sheltering of Evacuees
The final step in the evacuation process is to
provide shelter to the evacuees. Merely advis-
ing people to evacuate an area is inadequate.
Providing shelter for them in a safe and comfort-
able building is of great importance, particularly
at night or during inclement weather. In order to
effectively serve the needs of evacuees, a shel-
ter should have the following facilities, services,
and characteristics:
One qualified person to serve as Shelter
Manager usually a Red Cross or local
government representative
Sufficient space to avoid overcrowding
Restroom facilities
Shower facilities
Specialized facilities for the handicapped
Chairs, tables, and other furniture
Adequate lighting, temperature control,
ventilation, and uncontaminated water
Telephone system and/or two-way radio
Food and refreshments
Adequate safety features to meet fire,
building, and health requirements
Medical surveillance and care
Care for the young, elderly, and handi-
capped
Information available for evacuees con-
cerning the emergency
Sufficient parking near the shelter
Shelters should be identified and management
and operational procedures should be estab-
lished as part of a preparedness plan. When
selecting shelters, locations must be chosen
that are in areas beyond current and projected
areas of hazard contamination. To ensure that
evacuees are continuously sheltered in safe ar-
eas, the following actions are necessary:
Collect and evaluate data on the spread of
hazards toward shelters.
Establish and maintain communications
with shelters.
Make provisions for the monitoring of haz-
ards in and around each shelter and evalu-
ate the resulting data.
Advise shelter managers when shelters will
have to be evacuated because of ap-
proaching hazards.
Should shelters have to be evacuated, alternate
locations must be identified and shelter coordi-
nators notified.
To ensure the health and safety of evacuees at
shelters, provisions should be made for evacuee
medical surveillance and care. This is especially
important for evacuees who may have been ex-
posed to hazardous materials vapors. Ideally,
each shelter should have medical professionals
assigned to care for evacuees. They must be
alert to symptoms caused by hazardous materi-
als and be responsible for treating victims or
calling for emergency medical assistance.
Evacuees showing symptoms should be sepa-
rated from those unaffected. The medical pro-
fessional can also assist evacuees who need
prescription medicines.
H.2.7 Re-entry into Evacuated Areas
Before making the decision to authorize re-
entry, data collected by the monitoring crews
must be verified and the advice of health offi-
cials considered.
Once the decision to authorize re-entry has
been made, re-entry operations must be coordi-
nated. These operations may be looked upon
as an evacuation in reverse, as many of the
same steps must be undertaken. Re-entry op-
erations involve:
Notifying people that they can return to
evacuated areas.
Providing evacuees with special informa-
tion or instructions.
Coordinating transportation for evacuees
who require it.
Providing traffic control and security in ar-
eas being re-entered.
Advising people to report lingering vapors
or other hazards to emergency services.
Advising people to seek medical treatment
for unusual symptoms that may be attribut-
able to the hazardous materials release.
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H.3 IN-PLACE SHELTERING
Evacuation decisions are of necessity very inci-
dent-specific and the use of judgment will be
necessary. If the release occurs over an ex-
tended period of time, or if there is a fire that
cannot be controlled within a short time, then
evacuation may be the sensible option. Evacu-
ation during incidents involving the airborne re-
lease of EHSs is sometimes, but by no means
always, necessary. Airborne toxicants can be
released and move downwind so rapidly that
there would be no time to evacuate residents.
For short-term releases, often the most prudent
course of action for the protection of the nearby
residents would be to remain inside with the
doors and windows closed and the heating and
air conditioning systems shut off. An airborne
cloud will frequently move past quickly. Vulner-
able populations, such as the elderly and sick,
may sustain more injury during evacuation, than
they would by staying inside and putting simple
countermeasures into effect.
There are other disadvantages associated with
evacuation during incidents involving airborne
releases of EHSs. Changes in wind velocity and
direction are difficult to predict and could be
very important if evacuation were undertaken
during a release. Differences in temperature
between air layers could also cause the toxic
cloud to disperse in ways that would be hard to
predict. These factors and others make it diffi-
cult to estimate how long the community would
be exposed to a toxic cloud. Also, no safe ex-
posure or concentration levels have been estab-
lished for the general population with regard to
releases of chemicals included on the list of
EHSs.
In-place sheltering, therefore, may be a sensi-
ble course of action, when the risks associated
with an evacuation are outweighed by the bene-
fits of in-place sheltering. In order for this pro-
tection measure to be effective, the affected
population must be advised to follow the guide-
lines listed below:
Close all doors to the outside and close
and lock all windows. (Windows seal bet-
ter when locked). Seal gaps under door-
ways and windows with wet towels and
those around doorways and windows with
duct tape or similar thick tape.
Building superintendents should set all ven-
tilation systems to 100 percent recircula-
tion so that no outside air is drawn into the
structure. Where this is not possible, ven-
tilation systems should be turned off.
Turn off all heating systems and air condi-
tioners.
Seal any gaps around window type air-con-
ditioners, bathroom exhaust fan grilles,
range vents, dryer vents, etc. with tape
and plastic sheeting, wax paper, or alumi-
num wrap.
Turn off and cover all exhaust fans in kitch-
ens, bathrooms, and other spaces.
Close all fireplace dampers.
Close as many internal doors as possible in
homes or other buildings.
If an outdoor explosion is possible, close
drapes, curtains, and shades over win-
dows. Stay away from windows to prevent
potential injury from flying glass.
If you suspect that the gas or vapor has
entered the structure you are in, hold a wet
cloth over your nose and mouth.
Tune in to the Emergency Broadcast Sys-
tem channel on the radio or television for
information concerning the hazardous ma-
terials incident and in-place sheltering.
It should be understood that following the above
guidelines will increase the effectiveness of in-
place sheltering as a protective action. Follow-
ing these guidelines does not ensure that this
type of protective action will indeed be effective.
12/87
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APPENDIX I
INFORMATION COLLECTION TO EVALUATE SITES
FOR EMERGENCY PLANNING
1.1 OVERVIEW
This appendix presents a process for collecting
information that will be needed to assess the
hazards posed by particular sites and to develop
community emergency plans. The National Re-
sponse Team's Hazardous Materials Emergency
Planning Guide (NRT-1) should be consulted
when preparing such plans. The process fo-
cuses on an examination of the sites that use,
produce, process, or store extremely hazardous
substances (EHSs). The types of information to
be collected include descriptions of the chemi-
cals present, ongoing measures for the control
of potential releases, and the available response
resources and capabilities at the site and within
the community, including existing emergency
plans. Initial requests for information should be
made in a way that promotes continued coop-
eration between the personnel at the sites and
the community planners. The information
should be sought in a way that encourages facili-
ties to participate actively in the planning proc-
ess along with local government and other com-
munity groups. Title III of the Superfund
Amendments and Reauthorization Act of 1986
(SARA) requires facilities to assist local plan-
ning committees by supplying information and
designating an emergency planning coordinator
(see Chapter 1). The Chemical Manufacturers
Association (CMA) has published A Manager's
Guide to Title III that suggests ways for partici-
pants in the Community Awareness and Emer-
gency Response (CAER) program to cooperate
with local planning committees.
Many sites will already have safety and contin-
gency plans in response to regulatory require-
ments or as part of normal operating proce-
dures. The community should learn what the fa-
cility is doing to identify and deal with the possi-
ble release of acutely toxic chemicals. The plant
site may have identified community impacts re-
sulting from accidental chemical releases and
have taken measures to reduce risks. The plan-
ners can then identify what additional steps and
resources, such as personnel, training, and
equipment, might be needed at the facility or in
the community.
The information collection process is outlined
here as a series of discussion points, which are
presented as examples of the types of informa-
tion that a community may want to use to assess
potential hazards. A community planning com-
mittee may use some, all, or none of these dis-
cussion points. Depending on the community's
initial perception of potential risks, the discus-
sion points can be tailored by the committee to
meet specific local needs. Some of these
points will be rather simple and direct, such as
those used to determine what EHSs are located
at a site, and their quantity. Other points should
generate additional discussion, for example,
whether any EHSs are handled or stored near
other chemicals that are flammable, explosive,
or reactive. If such a situation does exist, sub-
sequent discussions should be designed to: (1)
identify these chemicals, (2) determine how the
facility isolates the chemical of concern (e.g.,
the chemical of concern is stored in fire-proof
containers, or the adjacent flammable, explo-
sive, or reactive chemical is stored under condi-
tions to prevent leakage or explosion), and (3)
what additional precautions are taken to ensure
that a release will not affect the surrounding
community.
Planners should always be aware that:
The specific identity of an EHS may some-
times be withheld as a trade secret. In the
absence of specific chemical identity, how-
ever, important information such as the
physical state and the levels of concern
(LOCs), as defined in this document,
should be provided.
The information-gathering effort should not
be adversarial but rather an attempt by all
concerned to cooperate in describing and
solving a potential problem facing the en-
tire community:
Facilities may be sensitive concerning what
they consider proprietary business infor-
mation:
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Asking a particular question does not imply
that there is a definite problem, but rather
shows a desire to identify and address po-
tential problems: and
Title III of SARA requires facilities to provide
information to planners that will enable
hazards analysis.
1.2 ORGANIZATION
The suggested discussion points for gathering
and analyzing information for a hazard assess-
ment are presented in four sections:
Site activities and management programs:
Site location information;
Site measures for managing and control-
ling chemical releases; and
Site interface with community response
and preparedness programs.
Information obtained from these discussion
points and the information sources discussed in
Chapter 2 will assist the planners in assessing
site-specific hazards and should be considered
along with the factors used for assessing chemi-
cal releases outlined in Chapter 2 and detailed in
Appendix H. Even if the sites have safety and
contingency plans in place, the community plan-
ners should not neglect the procedures sug-
gested in Chapters 2 and 3, as they will enable
the community to assess hazards posed by dif-
ferent sites and to develop contingency plans in
order of priority.
The discussion points outlined here are far rang-
ing. Not all of them will be necessary to elicit
information required for site-specific assess-
ment. However, most will need to be discussed
for the final phase of this program, the formula-
tion of emergency plans. For this reason they
are included here. Planners may select those
points that best suit their needs for each phase
of the process.
The first section outlines the points of informa-
tion that the community planners will want to ob-
tain about the type and quantity of chemicals
used, produced, processed, or stored and to
evaluate the appropriateness and timeliness of
any planning that may already have been done
at the site. If little emergency preparedness
work has been done, the planners need to know
the site's chemical handling and processing ac-
tivities, related management programs, and ca-
pability for responding to chemical release
emergencies.
Next, the planners will want to find out about
those physical, topographic, meteorological,
and demographic factors that, although external
to the facility itself, have an important bearing on
how to prepare for an emergency involving a re-
lease from the facility. The facility may already
have assembled this kind of information as part
of its internal planning process.
Most companies, for reasons of plant and em-
ployee safety, community concern, regulatory
requirements, or as a matter of corporate pol-
icy, have analyzed the potential on-site and off-
site impact of a chemical release. Plans for pro-
moting on-site safety, emergency plans, and
liquid spill and hazardous waste release preven-
tion plans may already have been developed as
a result of standard industrial practice or regula-
tory requirements. If such plans are available,
they can be a valuable starting point for the
larger task facing the planners, that is, develop-
ing an up-to-date comprehensive community
emergency plan, in addition to the initial task of
ranking the site-specific hazards.
The final step for the community planners is that
of developing, or updating, the community
emergency plan. NRT-1 should be consulted for
this step. Based on emergency planning efforts
that may already have been undertaken at the
site, as well as on the planners' assessment of
the site's activities and management programs,
the planners can assess the adequacy of the
site's emergency plans and those of the com-
munity. A solid foundation will now exist upon
which future cooperative planning and updating
can occur.
1.3 SITE ACTIVITIES AND MANAGEMENT
PROGRAMS
This section contains example discussion points
that will assist planners in collecting basic infor-
mation about the site's processes and related
management programs. With this information
and using the procedures outlined in Chapter 2
and 3, the planners can assess a site's potential
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hazards as well as evaluate its emergency re-
sponse resources and capabilities. This infor-
mation will also be useful in developing a com-
munity emergency plan. The planners first need
information about the hazardous materials that
exist at the site and then about how these mate-
rials are handled and managed.
1 . Chemicals of Concern That Could Be Re-
leased:
Chemicals used, produced, processed,
or stored that meet the criteria (see Ap-
pendix B) or are on EPA's EHS list (see
Appendix C), whether or not they ex-
ceed the threshold planning quantities
(TPQs). (The specific chemical identity
of an EHS may sometimes be withheld
as a trade secret. In the absence of the
specific identity, however, important in-
formation such as the physical state and
the LOG, as defined in this document,
should be obtained.)
Chemicals that could result from reac-
tion, combustion, or decomposition of
chemicals at the site.
High temperature, high pressure proc-
essing and storage of chemicals.
2. Shipping and Transfer of EHSs:
Frequency of shipments (daily, weekly,
irregular schedule).
Quantity of shipments (tons, gallons,
number of drums, tanks, and vats).
Form of shipment (e.g., tank truck, rail
car, drums, boxes, carboys, pipelines,
barges).
Transportation routes through the com-
munity (roads, railroads, pipelines).
Unloading systems:
o pumping versus gravity feed sys-
tems, and
o underground versus aboveground
pipelines.
Unloading procedures:
o monitoring by plant personnel, and
o remote monitoring by tank level
gauges, alarms, automatic cut-off
valves, and similar means.
3. Storage Conditions:
Quantities normally stored in above-
ground tanks and underground tanks.
Drum storage areas (indoors and out-
doors).
Storage of gas cylinders.
Use and operation of secondary spill-
containment systems.
Techniques used for the separation of
incompatible chemicals.
Special systems used for the storage of
reactive, flammable, and explosive
chemicals.
4. Handling Procedures for EHSs:
Special safety systems used in connec-
tion with high temperature or high pres-
sure operations.
Secondary equipment containment sys-
tems for reactor and other processes.
Pumping versus gravity-feed systems.
Materials handling by automatic systems
versus manual systems.
Use of alarm systems for tank level
gauging, temperature and pressure
sensing.
Redundancy for critical process (i.e.,
availability of back-up equipment in
case of failure, or automatic system
shut-down after a system failure).
Frequency of inspection and testing of
critical process equipment, alarm sys-
tems and similar equipment.
5. Site Management Characteristics:
Hours of operation and production rates
during different shifts (planning needs
may differ between day and night
shifts),
Degree of around-the-clock coverage
by trained, responsible, and fully author-
ized technical and management staff.
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Plant security (e.g., fencing, guards on
duty, remote sensing by TV monitors,
alarm connections to local police and
fire departments).
Plant wastewater and stormwater drain-
age: direct discharges to local surface
water versus discharge to on-site or off-
site treatment plants.
Site emissions to the air covered by Fed-
eral and State environmental regula-
tions.
Hazardous and non-hazardous solid
wastes generated, treated, stored, or
disposed on-site. Wastes transported
off-site.
6. Site Process Design and General Opera-
tions:
Listing and description of relevant site
processes for synthesis, manufacture,
formulation, repackaging, distribution,
and handling of EHSs.
Design and construction specifications
covering such aspects as handling tem-
perature and pressure, and materials'
compatibility.
Process design to consider safety de-
vices, alarms, and back-up systems to
ensure the integrity of the process and
to protect the facility during normal and
unusual conditions of operation.
Programs for managing changes in the
design or operation of process equip-
ment and changes in chemical compo-
nent amounts, concentrations, or types.
Preventive maintenance programs for
facilities and equipment critical to safe
process operation.
Maintenance training and implementa-
tion that addresses the potential for pre-
venting or controlling the release of
EHSG.
Description of "best engineering prac-
tice" and "state-of-the-art" process
design, construction, operation, and
maintenance for similar facilities within
the industry.
1.4 SITE LOCATION INFORMATION
These example discussion points allow the com-
munity planners to describe the vulnerable zone
in greater detail and to assess the adequacy of
both site and community preparedness pro-
grams.
1. Significant Physical, Topographic, and Me-
teorological Features:
Distance to site fenceline or boundaries
from Chemical storage and process ar-
eas.
Transportation access/egress including
surface, air, and water routes.
Terrain characteristics of importance
such as mountains, hills, canyons, val-
leys, and plains.
Meteorological features, including pro-
files of wind speed and direction, pre-
cipitation, and temperature.
Distance to nearest surface-water body,
including drainage ditches and other
conduits, and flood plains.
2. Site Demographic Characteristics:
Distance to nearby populations such as
communities, subdivisions, commercial
or industrial sites, and transportation
corridors.
Distance to public facilities such as
schools, hospitals, parks, playgrounds
and stadiums.
Numbers of people within vulnerable
zone distances and a characterization of
how those numbers can fluctuate hourly,
daily, and seasonally.
Value of property and commercial goods
located within potential vulnerable zone.
1.5 SITE MEASURES FOR MANAGING AND
CONTROLLING CHEMICAL RELEASES
This section contains example discussion points
to help the community understand those actions
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already taken by a facility to identify hazardous
situations and to describe the potential effects
on people, property, and the environment. The
planners should identify the control measures
site management has put in place to control re-
leases of EHSs, their by-products and decom-
position products, or other chemicals that meet
the criteria. Facilities are defined under Section
302 of Title III of SARA (see glossary).
1 . Site, Community, and Environmental Im-
pacts of Potential Emergencies:
Site analyses or models to predict loca-
tion, intensity, and duration of hazards
related to chemical releases.
Community, State, or Federal activities
or studies that the site has integrated
with their own release modeling efforts.
Past experiences or incidents at the site.
Past experiences with similar chemicals
and processes.
Past facility and transportation incidents
in the community involving hazardous
materials. Relationship of past response
efforts to possible future needs. Note
that transporters are not required to
keep historical records.
Activities or studies by trade groups,
professional societies, or academia that
could be of value.
2. Control and Response Plans in Operation,
under Development, or on File:
Spill Prevention Control and Counter-
measures (SPCC) Plan covering the re-
lease of hazardous substances as de-
fined under authority of the Clean Water
Act.
General site safety plan covering routine
and non-routine operations, mainte-
nance, emergencies, training, and in-
spections.
Site emergency response and prepared-
ness plans.
Resource Conservation and Recovery
Act of 1976 (RCRA) Part B Emergency
Response Plan covering site and com-
munity response procedures and contin-
gencies for release to the environment
of hazardous wastes as required by the
regulations under RCRA in 1976 and as
amended in 1980 and 1984.
Site and corporate policies for develop-
ing, implementing, and updating all such
plans.
3. Equipment Available On-Site for Emer-
gency Response:
Basis for having such equipment on-
site.
Description of "good practice" and
"state-of-the-art" equipment for similar
facilities within and chemicals handled
by the industry.
Fire-fighting systems (fire hydrants,
sprinklers, extinguishers, chemical fire
retardants, protective clothing).
Fogging or misting systems for vapor re-
lease control.
Neutralization materials for acids or
caustics.
Dedicated dump tanks, absorbers,
scrubbers, or flares for liquid/vapor re-
lease control.
Absorbants, foams, and specialized
Chemical agents for containing and con-
trolling releases.
Emergency power systems in case of
power outage.
Containment booms for surface-water
spills.
4. Leak and Spill Detection Systems:
Basis for installation of these systems.
Description of "good practice" and
"state-of-the-art" systems for similar
chemicals handled by the industry.
Gas detection monitors or explosimeters
for determining sources and severity of
leaks.
Oil spill detection devices for nearby
sewers or drains to surface-water bod-
ies.
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Wind direction indicators for determining
the direction of released chemical aero-
sols or vapors.
Chemical spill detection systems for cor-
rosives, organics, and other volatilizable
liquid spills.
Degree to which such systems are re-
motely monitored and can initiate an
automatic response.
Activation sensors for rupture disks and
relief valves.
Sensors to detect overfilling of tanks and
initiate automatic response.
5. Site Emergency Response Procedures:
Chain of command for leak or spill notifi-
cation within the plant (24-hour notifica-
tion system).
Employee evacuation plan.
Response procedures for operations and
staff personnel.
6. Community Notification Procedures:
Criteria for notifying the community of a
release.
Procedures for notification, such as
sounding alarms and contacting commu-
nity officials, local police and fire depart-
ments, nearby populations, and the me-
dia.
Ongoing education of citizens and work-
ers to inform them of the exact meaning
of notification alarms.
7. Outside Emergency Response Resources:
Contracts with local cleanup contrac-
tors.
Arrangements with local hospitals or
other medical facilities.
Mutual aid agreement with other local in-
dustries.
8. Training and Preparedness:
Frequency of employee training in emer-
gency response procedures.
Extent of emergency response training
(training sessions, emergency drills, in-
volvement of local police and fire depart-
ments in emergency training and drills,
which employees receive training).
Frequency of updating of contingency
plans (regular basis or only after
changes in plant operating procedures).
Inspection of emergency equipment
(frequency and extent).
Description of "good practice" and
"state-of-the-art" practices for similar
facilities within the industry.
1.6 SITE INTERACTIONS WITH COMMUNITY
RESPONSE AND PREPAREDNESS
PROGRAMS
These discussion points help the community
evaluate its emergency response resources and
capabilities and those of the facilities. They are
designed to identify planning activities, re-
sources used, and response capabilities estab-
lished within the community. Information will be
required from a Variety of local emergency re-
sponse agencies and government agencies.
These discussion points may need to be ad-
dressed only once for the entire community.
This information will be used directly to develop
the community emergency plan and will assist
the planners in evaluating what emergency re-
sponse resources may be needed in addition to
those already in place or planned by the facility
or community.
1. Planning Documents and Activities:
Existing community hazardous chemical
emergency plans.
Current status of community emergency
plan or planning process for EHSs or other
hazardous chemical emergencies.
Status of technical reference library or
other information systems for response
procedures for chemicals.
Structure and authority of existing commu-
nity planning and coordination body (e.g.,
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task force, advisory board, interagency
committee) to plan for and deal with emer-
gencies.
Status of previous surveys or assessments
of potential risks to the community from fa-
cility or transportation accidents involving
hazardous chemicals.
Status of any existing assessments of pre-
vention and response capabilities within the
community's own local emergency re-
sponse network.
Frequency of training seminars, exercises,
or mock accidents performed by the com-
munity in conjunction with local industry or
other organizations.
Integration of any existing hazardous
chemical plans into any existing community
contingency plans for other emergencies.
2. Planning Review and Update:
Community personnel and programs for
periodic analysis, review, and update of
the community contingency plan.
Corporate and on-site facility officials des-
ignated to maintain and update the site
contingency plan and to interact with the
local emergency planning group.
Corporate and facility policies in this re-
gard.
3, Training and Preparedness:
Capacity and level of expertise of the com-
munity's emergency medical facilities,
equipment, and personnel.
Arrangements for assistance from or mu-
tual aid agreements with other jurisdictions
or organizations (e.g., other communities,
counties, or States; industry; military in-
stallations; Federal facilities; response or-
ganizations ).
Availability of any specific chemical or toxi-
cological expertise in the community -
either in industry, colleges and universi-
ties, or on a consultant basis.
Availability of equipment and materials on
the local level to respond to emergencies.
Accessibility of equipment, materials, and
manpower in emergency situations.
Completeness of a list of important re-
sources and their availability for speedy re-
sponse activities: wreck clearing, transfer,
transport, cleanup, disposal, analytical
sampling laboratories, and detoxifying
agents.
Training and equipment available to the lo-
cal emergency services (fire, police,
medical).
Proximity of specialized industry response
teams (e.g.) CHLOREP, AAR/BOE), State/
Federal response teams, or contractor re-
sponse teams available to the community.
Average time for them to arrive on the
scene.
Definition of community emergency trans-
portation network.
Designation of specific evacuation routes;
public awareness of evacuation routes.
Designation of specific access routes des-
ignated for emergency response and serv-
ices personnel to reach facilities or acci-
dent sites.
Other procedures for protecting citizens
during emergencies (e.g., remain indoors,
wear gas masks).
4. Community, State, and Federal Agencies and
Other Organizations that Can Contribute to or
Should Have a Role in the Contingency Planning
Process :
Fire Department.
Police/Sheriff/Highway Patrol.
Emergency Medical/Paramedic Services
associated with local hospitals or fire or po-
lice departments.
Emergency Management Agency/Civil De-
fense.
Public Health Agency.
Environmental Agency..
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Red Cross.
Other local community resources such as
transportation department, public housing,
communications.
5. Communications:
A list of specific community points of con-
tact and a description of what their duties
and responsibilities are in an emergency.
Agencies involved, areas of responsibility
(e.g., emergency response, evacuation,
emergency shelter, medical/health care,
food distribution, control of access to acci-
dent site, public/media liaison, liaison with
Federal and State responders, locating and
manning the command center), the name
of the contact, position, 24-hour telephone
number, and the chain of command.
Status of the emergency communications
network in the community to alert the pub-
lic, keep the public informed with up-to-
date information, and provide communica-
tions between the command center, the
accident site, and off-scene support.
Components available for the communica-
tions network (e.g., special radio fre-
quency, network channel, siren, dedicated
phone lines, computer hook-up).
Status of community source list with the
name, position, and phone number of a
contact person for technical information
assistance. This can be Federal, State, in-
dustry associations, and local professional
groups.
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APPENDIX J
METHODS FOR EVALUATING HAZARDS USED BY FACILITIES
J.1 INTRODUCTION
Many facilities will have undertaken detailed
analyses of their plant operations. This appendix
describes three procedures which they may
have used to evaluate hazards in everyday oper-
ating procedures. They are Hazard and Oper-
ability Study (HAZOP), Event Tree Analysis, and
Fault Tree Analysis. Some community planners
may wish to use these methods or at least be
familiar with them. It may be possible for plan-
ners to use such studies if they are available for
the facilities of concern. The prodcures dis-
cussed below, as well as others, are described
in detail in Guidelines for Hazard Evaluation Pro-
cedures prepared by Battelle Columbus Division
for the Center for Chemical Plant Safety of the
American Institute of Chemical Engineers
(AlChE). These methods for risk analysis are
highly complex and the methodologies em-
ployed are under continual development by ex-
perts in the field. It is therefore suggested that
planners intending to use these methodologies
seek appropriate technical support.
J.2 HAZARD AND OPERABILITY STUDY
A HAZOP is a technique commonly used by
chemical process facilities to identify hazards
and difficulties that prevent efficient operation.
There are two versions of the technique, one
which deals with "deviations" and the other with
"disturbances." "Deviations" are caused by
malfunction or maloperation of a specific pro-
duction system. 'Disturbances" include prob-
lems caused by influences outside the specified
system, including other activities and the envi-
ronment.
The first version of HAZOP to be developed and
the most widely known was aimed at deviations
and is called a "Guide Word" HAZOP. Each ele-
ment of the process is evaluated separately.
The purpose of the element is specified and
notational deviations are generated by associat-
ing this purpose of the element with distinctive
words or phrases called "guide words." These
guide words are "no" or "not," "more," "less,"
"as well as," " part of," "reverse," and "other
than" which, broadly speaking, cover all possi-
ble types of deviation.
For each notational deviation, a determination
must be made whether this is a possible situ-
ation (e.g., no flow or reverse flow in a transfer
line that should have forward flow). If this is
possible, the conditions in which that situation
might occur and the possible hazardous conse-
quences must be identified. The guide words
are applied to all materials and all operating pa-
rameters (e.g., flow, temperature, pressure).
The guide words are applied not only to the
equipment, but also to the operating proce-
dures. All phases of operation (e.g., startup,
normal operation, shutdown, backwash) must
also be included. As would be expected, this
approach can be time-consuming and the time
taken can vary from several days for a small
production unit, to several months for a complex
facility.
The second version of HAZOP studies is called a
"creative checklist" HAZOP. This version has
been developed as a complement to the guide
word HAZOP to cover "disturbances." It is of
particular value in two situations. These are to
enable a HAZOP study to be carried out very
early in the design process, even before the de-
tailed design necessary for a "guide word"
HAZOP is available; and to cover hazards which
may be caused by interactions between units
which could be perfectly safe if built in isolation,
but may be capable of adverse interactions.
This second method uses a checklist of known
major hazards and nuisances. The checklist
would contain words such as "fire," "explo-
sion," "toxicity," "corrosion," "dust," and
"smell." The checklist is initially applied to
every material likely to be present; raw materi-
als, intermediates, finished products, by-
products and effluents. This establishes qualita-
tively whether hazards and nuisances exist and
also provides a quantitative data base of the nu-
merical intensities of different hazards. Thus
"fire" would result in not only a note that a ma-
terial is flammable but numerical measurements
such as a "flash point" and "flammable limits."
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Any missing data are pinpointed and timely
steps taken to collect such data.
3. Track what the actors will do under the cur-
rent conditions: and
The Second method continues with the associa-
tion of the same checklist with each item of
equipment. The materials present in such
equipment, together with the inventories, are
known as the "materials hazards." As the
analysis proceeds, the potential for all major
hazards including interactions between units or
the unit and its environment are identified. The
flow of hazards can be in both directions. For
example, the environment may pose hazards to
the unit (e.g., flooding and earthquakes), which
would have to be considered in the siting, de-
sign, and layout of the unit. Although less well
known than the guide word HAZOP, the creative
checklist HAZOP has been found to be a quick
and valuable complementary approach.
While local emergency planners will not possess
the resources or need to perform a HAZOP on
all facilities in the community, the concept of
analyzing deviations from normal performance
could be the best way to analyze the most haz-
ardous elements found in the community. For
example, if a shipping error caused a volume of
a hazardous chemical to be delivered to a local
facility that exceeded the capacity of the chemi-
cal material loading area, where would the ex-
cess material be placed? If part of a train stored
on the local rail siding caught fire, is there suffi-
cient space available to segregate the chlorine
tank cars that are often kept there?
J.3 EVENT TREE ANALYSIS
Event tree analysis is a systematic approach that
focuses primarily on a chain of events or occur-
rences. While the possible outcome of some
events may be intuitive, complex situations must
be broken down into a series of sequential
events.
The steps in event tree analysis are:
1. Identify the actors in an emergency (e.g.,
hazardous materials, response personnel);
2. Identify the conditions present;
4. Visualize the effect of the activities on the
outcome of the event.
The following example analysis from Analysis of
Hazardous Materials emergencies for Emer-
gency Program Managers: Student Manual
FEMA SM-110 (see Appendix L) visualizes the
potential outcome of a leaking vessel (in this
case a drum) of flammable liquid engulfed in a
fire. In this situation, the actors and their activi-
ties include:
Burning fuel is heating the drum:
Drum is absorbing heat from the burning
fuel and heating the contents; and
Contents of drum are absorbing heat from
the drum.
The complex activities of the emergency are di-
vided into sequential events in which the burning
fuel generates heat, causing the drum contents
to change physical state (liquid to gas). This
expansion of the contents will raise the pressure
in the drum and stress the drum components.
The possible activities of the drum can then be
evaluated. Possibilities include:
The flat drum head will begin to round out
as the internal pressure continues to rise:
The weld between the drum head and the
drum wall will begin to yield: and
The drum head will separate from the drum
wall.
When the drum head breaks away from the side
wall, activities of the contents could include:
As the pressure is relieved through the
breach in the drum, the heated contents
will expand and flow through the breach.
Drum contents will escape to the atmos-
phere, creating a new actor - vaporized
flammable contents.
Escaping contents will produce a propul-
sive effect on the drum, propelling it like a
rocket.
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If the drum is still surrounded by the burn-
ing fuel, the vaporized contents will ignite,
forming a fireball and escalating the prob-
lem.
When the drum is open, possible activities of the
drum and contents include:
The drum, propelled by the escaping con-
tents, may fly along a trajectory that is de-
pendent upon where the drum was heated.
Obstructions may change the direction or
distance of travel.
The released contents may fall along the
flight path of the drum, leaving a trail of
burning material along the ground.
The third step in event tree analysis visualizes
the sequential interrelationship of the actors.
Each event is broken down and placed in logical
sequence to make the possible points of inter-
vention readily apparent. In this way, the appli-
cation of event tree analysis provides a detailed
understanding of the mechanical, chemical, and
thermal interactions that affect the behavior of
actors in an emergency.
Four general factors that affect the behavior of
hazardous materials in an emergency are:
Inherent properties and quantity of the haz-
ardous material:
Built-in characteristics of the container;
Natural laws of physics and chemistry; and
Environment, including the physical sur-
roundings (terrain) and the conditions
(weather).
These factors and their interrelationships can
provide a basis for visualizing what will happen in
an emergency involving hazardous materials.
For most events involving hazardous materials,
the scenario begins with a container (e.g., tank,
pipe, drum, cylinder, bag) that under normal
conditions holds a hazardous material. The
event begins when the container is disturbed or
stressed in some way. When the stress ex-
ceeds the capacity of the container, a breach of
the container's integrity occurs and some type
of release will occur. The escaping matter and/
or energy will follow the patterns governed by
the natural laws of physics and chemistry to dis-
perse into the surrounding environment. As the
material comes in contact with vulnerable ele-
ments in the environment, the duration and in-
tensity of the exposure influences the type of
event that results. These basic elements of haz-
ardous events are combined to form a model for
the behavior of hazardous materials.
Stress Stage of the Behavior Model
Stress is an applied force or system of forces
that tends to strain or deform a container and
may trigger a change in the condition of the con-
tents. There are three basic forms of stress:
thermal, mechanical, and chemical. Thermal
stress results from the effects of extreme tem-
perature changes which may be caused by fire,
sparks, friction, electricity, radiative transfer, or
extremes of cold or heat.
Mechanical stress is caused by an object which
physically contacts the container. The object
may puncture, gouge, bend, break, tear or split
the container. A chemical stress is caused by a
chemical action such as acids corroding the
container, pressure generated by decomposi-
tion, polymerization, or runaway reactions.
Breach Stage of the Behavior Model
If the container is stressed beyond its structural
limits, it will open or breach. Different contain-
ers breach in different ways:
Disintegration, which is the total loss of in-
tegrity (e.g., a glass jar shattering).
Attachments open up (e.g., a pressure re-
lief device malfunctions).
Punctures from external sources.
A split, tear or crack of a container (e.g.,
torn bags or boxes, or split or cracked
drums).
Release Stage of the Behavior Model
Once the container is breached, the material
can escape to the environment. There are four
types of release:
Violent rupture causes runaway cracking of
closed containers and Boiling Liquid Ex-
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panding Vapor Explosion (BLEVE), and oc-
curs in less than one second.
Rapid release through pressure relief de-
vices, damaged valves, punctures, or bro-
ken piping will take several seconds to sev-
eral minutes.
A spill or leak, which is a non-violent flow
through opening in fittings, splits or tears,
and punctures may take minutes to days.
Detonation is an explosive chemical reac-
tion which occurs in less than 1 /100th of a
second. Examples are military munitions,
dynamite, and organic peroxides.
Dispersal Stage of the Behavior Model
Once the hazardous material is released into the
surrounding environment, the event is likely to
escalate in intensity. The properties and char-
acteristics of the material, in combination with
the laws of physics and chemistry, will deter-
mine the pattern of the distribution of matter and
energy. The forms that the matter or energy
may take include: fragments, powder, dust,
schrapnel, liquid, vapor, vaporizing liquid,
gases, infared rays, and shock waves. Factors
that will affect the movement of materials in-
clude temperature differentials, density with re-
spect to water and air, wind speed and direc-
tion, and gravity. The dispersion path that is fol-
lowed may be linear, radial, random, or could
follow the contour, upward or outward. The dis-
persion pattern may be in the form of a cloud,
cone, plume, stream, or irregular deposits.
Dispersion patterns will also depend on the
physical form of the material (i.e., gas, liquid, or
solid). Gases escaping under pressure (e.g.,
leaks from a cylinder) form a cloud or plume. If
enclosed, the cloud will fill the available space: if
not enclosed, it may be carried by the wind as a
plume. If the vapor's density is greater than air,
the material may settle into depressions or travel
along the ground as a plume.
Liquids may flow along the ground as a stream
while simultaneously vaporizing and acting as a
gas (stream with plume) or may be absorbed
into the ground or onto clothing worn at the
scene (irregular deposits). Solids may scatter
(irregular deposits), form dust clouds that are
carried by the wind (plume), or stick to surfaces
(irregular deposits).
Exposure Stage of the Behavior Model
As the hazardous material moves away from the
point of release, exposure to the surrounding
environment may occur through a variety of
pathways including: ingestion, physical contact,
and inhalation. Duration of the exposure and
Concentration of the material are particularly im-
portant aspects of the exposure event.
Damage Stage of the Behavior Model
Damage due to the exposure to the hazardous
material includes aspects of the susceptibility of
the environment or population. Such suscepti-
bility will differ markedly depending on the time
of day, season of the year, age of the popula-
tion, and ability of the population to escape or
otherwise mitigate the event.
The types of damage which may occur include:
thermal (heat and cold), radioactive, asphyxi-
ation, toxic or poison, corrosive or chemical,
disease (viral or bacterial), and physical or me-
chanical.
Damage can be expressed in terms of: fatali-
ties, injuries, property destruction, critical sys-
tem disruption, and environmental disruption.
As shown in Exhibit J-1, event tree analysis
traces each event, as it occurs or does not oc-
cur, and each safety or control equipment or
procedure to identify the possible outcome.
Note that several paths through the event tree
can have similar or identical outcomes. It is im-
portant to trace all possible events through all
paths that can affect the outcome. In addition to
identifying the possible outcomes and their rela-
tive severity, an event tree can visually repre-
sent the potential importance of possible equip-
ment or procedures in mitigating the severity of
damage. In the example in Exhibit J-1, if both
hazardous events occur and procedure A fails,
the control procedure B is completely ineffective
in altering the outcome or severity of damage.
5.4 FAULT TREE ANALYSIS
Fault tree analysis (FTA) is an analytical tech-
nique used to determine the means by which an
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Exhibit J-l
Sample Event Tree Analysis
Hazardous
Event #1
EVENT
OCCURS
Safety or
Control
Equipment or
Procedure A
SUCCEEDS
Hazardous
Event #2
OCCURS
FAILS
DOES NOT
OCCUR
OCCURS
Safety or
Control
Equipment or
Procedure B
(partial failure
modes)
SUCCEEDS
FAILS
SUCCEEDS
FAILS
DOES NOT
OCCUR
SUCCEEDS
FAILS
Outcome and
Severity of
Damage
No release,
facility dam-
age only
from com-
bined Events
#1 and #2
Partial re-
lease, some
damage to
community
from com-
bined Events
#1 and #2
No release,
facility dam-
age only
from Event
#1
Partial re-
lease, some
damage to
community
from Event
#1
Total release
from Events
#1 and #2,
maximum
damage
No release,
facility dam-
age only
from Event
#1
Partial re-
lease, some
damage to
community
from Event
#1
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unwanted event, such as a release of toxic ma-
terials, could possibly occur. The technique,
which in structure is similar to the event analysis
technique, involves the development of fault
tree diagrams which illustrate the "chain of
events" required for a particular event to occur.
Fault tree analysis reverses the normal se-
quence of events and places the undesirable
event under study (i.e., head event) at the top
of the diagram. The incident is assumed to have
occurred and sub-events which represent the
means by which this event could occur are in-
serted below. Sub-events which are interre-
lated (i.e., dependent incidents), in that they
must both occur before the subsequent event
can occur, are related by a logical "and." Sub-
events which are unrelated in that the occur-
rence of any one sub-event would cause the
subsequent event, are connected with a logical
"or." For example, in the analysis of the over-
flow of a storage tank that is being filled with
gasoline, in which the storage tank has a high-
level alarm, the associated fault tree might be
constructed as in Exhibit J-2. The head event is
that the tank overflows.
The fault tree technique only considers those ac-
tions which must occur for the head event to oc-
cur, and therefore isolates the events of impor-
tance from the many possible events. In the ex-
ample, in order for the tank to overfill, there
must be an increase in the tank level of the flam-
mable liquid (gasoline) (sub-event 1) and no
corrective action taken before overfilling (sub-
event 2).
Since both sub-event 1 and sub-event 2 must
occur before the head event occurs, the two
events are connected to the head event by an
"and" (i.e., sub-event 1 and sub-event 2 must
occur to have the head event occur).
The fault tree analysis continues down the tree
and breaks each of the sub-events into their
components in a similar manner (i.e., if no cor-
rective action occurs, there must be a high level
alarm failure or an operator failure).
Sub-event 2 would then be divided into:
Sub-event 2.1. High Level Alarm Fails
Sub-event 2.2. Operator Fails
The analysis continues until the sub-events can
not be practically subdivided further. The deter-
mination of this point is left to the judgement of
the analyst. Exhibit J-2 illustrates an example of
the beginning of a simple fault tree: however,
this event might need to be subdivided further to
reach the practical limits of the analysis.
As the number of sub-events increases due to
system complexity, the fault tree can become
very complex. The analyst can limit the effort
involved by carefully selecting the scope of the
head event and by limiting the level of detail
considered in the analysis.
Fault tree analysis is useful for describing the in-
terrelationship of events or components of a
system which must "fail" for an accident to oc-
cur. Since only the negative actions (i.e., fail-
ures), and only those actions related to the ac-
tual head event are considered, the technique is
often an efficient means of analyzing complex
scenarios or systems.
J.5 FAILURE MODES, EFFECTS, AND
CRITICALITY ANALYSIS
As described in the AlChE document, Guidelines
for Hazard Evaluation Procedure, Failure
Modes, Effects, and Criticality Analysis (FMECA)
and Failure Modes and Effects Analysis (FMEA)
identify and tabulate equipment and system fail-
ure modes and the potential effects on the sys-
tem or plant for each failure mode. The failure
mode is a description of how equipment fails
(e.g., open, closed, on, off, or leaks). The ef-
fect is the accident or system response resulting
from the failure. The FMECA also includes a
criticality ranking for each failure mode. Single
failure modes that result in or contribute to a
major accident are identified; however, FMECA
is not efficient for identifying combinations of
equipment failures that lead to accidents.
FMECA may be used to supplement more de-
tailed hazard assessments such as HAZOP or
Fault Tree Analysis. Results of this type of
analysis include worst-case estimates of the
consequences of single failures and a relative
ranking of equipment failures based on esti-
mates of failure probability and/or hazard sever-
ity.
12/87
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Exhibit J-2
Example Fault Tree
NO
CORRECTIVE
ACTION TAKEN
TANK LEVEL
INCREASES
1
NO
CORRECTIVE
ACTION
CONTROL^
VALVE
FAILS
CLOSED
OUTLET
PIPING
PLUGGED
Source: Process Sa/efy Management, (Control of Acute Hazards)
Chemical Manufacturers Association, Washington, D.C. May 1985
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APPENDIX K
EVALUATION GUIDE FOR AVAILABLE COMPUTER
APPLICATIONS ADDRESSING HAZARDOUS MATERIALS
EMERGENCY RESPONSE PLANNING
PURPOSE OF THIS CHECKLIST
This appendix contains a checklist of criteria de-
veloped to help local emergency planning com-
mittees (LEPCs), or other groups considering
purchasing software, to identify computerized
applications to assist in emergency response
planning as outlined in the chapters of this docu-
ment. The checklist identifies many of the ways
that software applications can be of assistance.
The priorities and needs of the local planning
district will dictate which criteria are to be con-
sidered and may require development of addi-
tional criteria.
SOURCES OF INFORMATION USED TO
DEVELOP THE CHECKLIST
The checklist criteria were developed from infor-
mation in the National Response Team's Hazard-
ous Materials Emergency Planning Guide
(NRT-1) and this technical guidance document.
NRT-1 was designed to help local communities
respond to potential incidents involving hazard-
ous materials. This guidance document supple-
ments NRT-1 by identifying the facility and trans-
portation route information necessary for haz-
ards analysis and emergency planning, providing
guidelines for determining vulnerable zones, and
outlining the process for analyzing risks.
Understanding the planning processes described
in these documents and how the information be-
ing assembled will be used is a prerequisite for
determining which computer application will best
address the specific set of needs involved.
STRUCTURE OF THE CHECKLIST
Section 1. Provides a checklist for evaluating
the computer hardware (equipment) and ad-
ditional software (programs) required to op-
erate the system. The flexibility and ease of
use of the system and the availability of
training and other types of vendor support
are also addressed.
The next sections of the checklist are based on
the structure of this Guidance Document, and
include:
Section 2. Hazards Identification (assembling
facility, transportation route, and chemical
data);
Section 3. Vulnerability Analysis (modeling of
releases);
Section 4. Risk Analysis (ranking of hazards);
and
Section 5. Emergency Response Planning (as-
sembling hazards identification, vulnerability
analysis, and risk analysis information).
Section 6. Regulatory Requirements. This sec-
tion describes a few of the ways that a soft-
ware application can explain the require-
ments under Title III and assist in compliance
with requirements, such as tracking dead-
lines and responding to requests for infor-
mation.
NOTE: This checklist highlights some impor-
tant user costs to be considered, however the
total system cost is difficult to represent. Some
software applications may require the purchase
of specialized hardware or additional software
from other manufacturers. Vendors may in-
clude fees for tailoring of the software applica-
tion to meet a user's needs in the original price.
Training, manuals, technical support services,
additional data entry, software updates, and ad-
ditional copies of the software may be included
or may need to be purchased separately.
1 National Response Team. Hazardous Materials Emergency Planning Guide. NRT-1 (March 1987).
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In addition to the initial purchase costs of the ap-
plication, the long-term investment required to
install, maintain, and operate the full working
system must be considered. Such costs will in-
clude: assembling the required data: validating
and entering the data: training new personnel;
purchasing updated software: and correcting
and amending the data as changes occur.
These costs will apply to some extent to any ap-
plication purchased. Assistance in estimating
some of these costs may be available from data
processing professionals within the State gov-
ernment or from computer-oriented firms lo-
cated within the district.
SUGGESTED PROCEDURE FOR EVALUATING
EMERGENCY RESPONSE PLANNING SOFT-
WARE APPLICATIONS
The suggested procedure for LEPCs to use the
checklist is as follows:
1. Identify the local district's need to manage
emergency response planning information
under NRT-1 and this Guidance Document.
Understanding how the information is to be
used in the planning process is an essen-
tial first step to focusing the evaluation on
the needs.
2. Select the criteria on the checklist which
most closely represent the local district's
needs and priorities for emergency re-
sponse planning. It is not expected that all
criteria listed will apply.
3. Develop any additional criteria required to
address local needs and priorities (e.g.,
consistency with the type of computer
equipment that is already available).
4. Rank the criteria according to levels of im-
portance (e.g., must be met, would be
valuable, can be delayed).
5. Identify vendors and their emergency re-
sponse software from the available litera-
ture, advertising, and other sources. An
initial list of commercial software applica-
tions will be made available through the En-
vironmental Protection Agency (EPA)
emergency preparedness coordinator in
each EPA regional office.
6. Request information from the vendors
(e.g., sales literature, demonstration soft-
ware, cost information, and current users
of the application who can be contacted as
references).
7. Review the information and complete a
checklist for each software application.
6. Contact vendors to request any additional
information and to clarify data on the appli-
cations which seem best suited to the
need.
CAUTIONS: An evaluation include the spe-
cific priorities and needs of the individual juris-
diction.
Any comparison of the cost of computer appli-
cations requires the assessment of many factors
in addition to the purchase price identified by the
vendor. (See NOTE on previous page for a de-
tailed discussion of costs.)
Computer systems are continually being modi-
fied and refined. The results of the evaluation
will become out-of-date and should be repeated
if the purchase of a system is delayed.
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CRITERIA FOR THE REVIEW OF COMMERCIALLY AVAILABLE
SOFTWARE APPLICATIONS FOR EMERGENCY RESPONSE PLANNING
Computer System Requirements (Hardware, Software, Support, Etc.)
Objective: Provide a basis to evaluate the functional capabilities, design limitations, and opera-
tional requirements of the system, and to evaluate the vendor's ability and willingness to support
the system.
Criteria
Explanation/Examples
1. Demonstrations of the software
application are available?
Either a professional sales demo or
current user demo may be available.
2. Documentation of the software
is available for review?
User's manuals and other explanatory
material from the vendor.
3. Software application is available
for a trial evaluation?
30-day free trial may be available
from the vendor.
4. Vendor is willing to modify the
application?
The application may require changes
by the vendor to allow specific community
needs to be addressed.
5. Software is compatible with
hardware that is already available
or hardware that can be easily
obtained?
Microcomputer; monitor: graphics board:
modem: phone line: math co-processor:
data storage space: digitizer:
printer or plotter.
6. Computer system hardware memory
can be expanded to meet the
anticipated needs?
Hardware can accept additional memory
required to load the software
and modify the largest data file needed.
7. Requires additional software to
be purchased from other companies
to function?
Operating system: printer interface:
graphics package.
Sold as modular components which
are priced separately?
Modules may be selected and
assembled to meet specific
requirements (NOTE: the software may
require purchasing several modules
to function properly.)
9. Total system cost is consistent with
budget capabilities of user?
Costs of hardware, software, training,
and data input may be hidden.
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Criteria
Computer System Requirements (Continued)
Explanation/Examples
10. Limits hardware and data access by
unauthorized users?
Access may be limited through passwords
and/or encryption of stored data.
11. User friendly and requires a
minimal amount of user training?
Menu driven: provides help screens:
clearly presented instructions: uses a
mouse or touch screen.
12. Vendor provides additional training
which may be required?
Training classes and materials may
be required when the system is installed
and as employees are hired: cost of training
should be considered.
13. Allows data that was entered
by the system vendor to be
updated by the user?
Allows modification of procedures
for handling a spill or release according
to facility or community practices.
14. Allows new types of data to be
entered by the user which were
not included in the vendor's
application?
A new field of data can be added to
the database (e.g., new type of chemical
information: facility response procedures).
15. Limits copying or distribution
by copyright or copy protection?
Some vendors limit the ability to
make copies of the software and require
copies to be purchased for each user.
16. Validates data as it is entered
or stored in the application?
Tests data against valid ranges (e.g., pH <14)
or lists of acceptable data (e.g., chemical
names).
17. In addition to using established keywords,
allows searches to be performed with
criteria chosen by the user?
Data can be identified by other
than preset criteria such as through a menu
(e.g., user defined searches).
18. Quality data sources were used
and updates will be available
as source information changes?
Chemical data content is current and
generally accepted by science and
health agencies such as EPA, OSHA, NIH,
NOAA, U.S.Coast Guard, DOT, and others:
cost and timeliness of updates should be
considered.
19. Allows reports or graphs to be
designed by the user?
User can specify data to be included,
physical layout, and headings for
columns of data.
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Criteria
Computer System Requirements (Continued)
Explanatiorn/Examples
20. Allows data to be transferred
(input and output) with other
types of software packages and
hardware systems?
System can communicate with other systems
(e.g., Lotus, dBASE, ASCII and DIP data
formats: Macintosh and IBM equipment).
21 Is in use by others who are
willing to provide information
on their experience?
Vendors may provide names of current
users of the system who would be
willing to discuss their experience.
22 Will the system software and
data be updated by the vendor?
New capabilities that are compatible
with the current system may be added.
23 Vendor provides continued service
and support if the user experiences
any type of difficulties in operating
the system?
If this type of service is available, a
maintenance and support fee will probably
be charged.
HAZARDS IDENTIFICATION
Objective: Provide information on the identity, quantity, location, physical properties, and toxicity
of chemicals at sites within the planning district.
Criteria
Explanation/Examples
Facilities
1. Accepts data on one or more
manufacturing and storage facilities?
Locations: activities: and inspection records.
2. Accepts chemical inventory and
storage data?
Chemical names; quantities: site
location(s); storage methods, temperature,
and pressure.
3. Accepts information concerning
facility accident potential or
history?
Events that could result in damage;
anticipated damage and consequences:
and historical accident records.
4. Records or describes engineering
controls and safeguards at
specific facilities?
Detection, fire suppression, and
security systems: containment and
drainage systems: and utility shutoffs.
12/87
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Criteria
HAZARDS IDENTIFICATION (Continued)
Explanation/Examples
Transportation Routes
1. Records shipping routes taken to
deliver materials to facilities
(e.g., highway, rail, and air)?
Identifies route taken and materials
transported.
2. Accepts information on the
major safety characteristics
of routes?
Routes may create problems because of:
width: access: traffic patterns: and
jurisdictions.
3. Logs transportation data,
schedules, and exceptions?
Tracks planned cargo shipments for
location and time expected.
Chemical Information
Database contains information
concerning the extremely
hazardous substances?
As required by the Title III regulations
(i.e., threshold planning quantities).
Contains information about the
chemical and physical properties?
Flammability; reactivity; corrosivity;
vapor pressures: physical states: boiling and
melting points.
3. Contains the health hazards and
risks, toxicological data, and
first aid procedures?
Exposure routes and limits: signs and
symptoms: target organs: and medical
conditions aggravated by exposure.
4. Contains methods for the safe
handling and use of the chemical,
and emergency response?
Identifies the equipment, clothing
and procedures required.
5. Indicates if notification
requirements apply to the
chemical released?
Identifies notification requirements
for release of reportable quantities
of chemicals (e.g., CERCLA, SARA).
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VULNERABILITY ANALYSIS
Objective: Identify geographic zone of the community that may be affected by an airborne release
and populations that may be subject to harm.
Criteria
Explanation/Examples
1. Accepts information on critical areas
around facilities and routes?
Drinking water supplies: cropland;
livestock: sensitive natural areas.
2. Accepts information on the
characteristics of populations located in
areas that could be in the vulnerable
zone?
Location of special populations
(e.g., elderly: handicapped: hospitals:
prisons; schools) and population density.
3. Calculates the vulnerability
zone based on the maximum quantity
present for screening?
Calculations are based on credible worst
case assumptions identified in this technical
guidance document.
4. Allows site-specific inputs to the
calculation of vulnerability zones
and provides release scenarios?
Calculations are based on site-specific
planning factors such as wind speed,
stability class, and chemical toxicity.
Modeling the Release of Chemicals (predicting the path, the effect, and the area of impact of the
chemical release using mathematical analysis)
Inputs (information that drives the model)
1. Accommodates physical
characteristics of the chemical?
Liquids at boiling point or ambient temperature;
powdered solids: solids in solution:
molten solids: gas density.
2. Addresses different types of
releases?
Instantaneous and continuous releases
including spills, leaks, fires, explosions,
and BLEVEs.
3. Supports multiple point sources?
Several release sources operating concurrently.
4. Address releases from any source
or only pre-selected sources?
Modeling ability may be limited to a specific set
of pre-established sites or may be capable of
representing releases from any possible location
(e. g., transportation accident).
12/87
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Criteria
VULNERABILITY ANALYSIS (Continued)
Explanation/Examples
5. Accepts data on meteorological
conditions?
a. Allows observed data to be
manually input?
b. Allows a modem link for
direct data entry?
c. Requires a meteorological
tower for data input?
6. Accepts data input for the
level of concern?
Wind velocity and direction:
temperature: stability class: precipitation.
Data are typed into the system using
the keyboard.
Accepts data directly from
laboratories or weather stations.
Facility or community meteorologic
tower is required for data collection.
Uses the data entered to calculate
the vulnerable zones.
Algorithms (equation(s) and assumptions used to calculate the results such as the concentration
of the plume of released chemicals)
1. Employs dispersion models that
are consistent with those used
in this technical guidance
document?
Gaussian dispersion models based on
Turner's Workbook of Atmospheric
Dispersion Estimates, PHS Pub. No.
999-AP-26. Different air stabilities and wind
speeds are used.
2. Identifies the types of assumptions
used?
Some models are not documented to provide
information on the assumptions used to
perform calculations and their effect on the
model's results, or the limits of the model's
ability.
3. Calculates chemical dispersion
rates and routes?
Provides information on the plume size,
motion, and concentration over time: and
predicts toxic corridors.
4. Supports terrain modeling and
considers complex terrain?
The ability to accommodate site-specific
effects of terrain can be significant under
some circumstances.
Outputs (the results of the calculations performed)
1. Presents pictorial representation
of dispersion plumes?
Presents model output as dispersion
plume overlaid on a map of the area.
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2. Produces line, bar, or pie graphs?
Presents model output in graphical format
(e.g., concentrations experienced at a
location over time).
3. Retains the results of calculations
in final form for future review or stores
the input parameters to allow the
results to be reproduced?
Systems differ in their ability to re-enact a
series of calculations or to reproduce a
specific output.
RISK ANALYSIS
Objective: Provide a basis to judge the relative likelihood (probability) and severity of various pos-
sible events. Risks can be expressed in qualitative terms (high, medium, low) based on subjec-
tive, common-sense evaluations, or in quantitative terms (numerical and statistical calculations).
Criteria
Explanation/Examples
1. Allows judgement to be made
concerning facilities and routes,
for probable hazard and severity
of consequences?
Judgement may be based on the accident
history, type of facility, storage conditions,
control technologies in place, and other
factors.
2. Assembles quantitative facility
information concerning possible
release scenarios?
Recognized systematic approaches include:
hazard operability study (HAZOP):
event tree analysis: fault tree analysis.
3. Allows priorities to be recorded
according to community concerns
and opinions?
Judgement and concerns of the
community can be entered into the
ranking and prioritization for community hazards.
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EMERGENCY RESPONSE PLANNING
Objective: Assemble detailed information concerning hazards, vulnerability, and risk; provide
action outlines for responders and criteria for plan review; present maps of the local area; and
provide simulation capabilities for training.
Criteria
Explanation/Examples
1. Provides detailed methods for promptly
identifying the affected area and
population based on release
information?
Mapping: modeling; demographical
statistics: worst case release.
a. Maps facility locations and
transportation routes?
b. Plans routes for hazardous
chemical shipments?
Provides details of relative
locations of hazards and vulnerable zones.
Based on characteristics of routes
available, selects the least dangerous route.
2. Accepts emergency information and
plans provided by chemical facilities?
Plans; procedures: site diagrams:
emergency checklists.
a. Records facility emergency
contacts?
b. Generates floor plans of
facility storage sites?
c. Indicates location of
engineering controls/safeguards?
Provides names, titles, and 24-hr, phone
numbers for emergency purposes.
Shows building layout and chemical
locations graphically.
Identifies safeguards such as
emergency shut-offs graphically, or
by detailed description of the location.
3. Provides an action outline for
emergency responders?
Provides a chain of events or considerations
that is based on the site-specific conditions
involved.
4. Identifies the needed emergency
response equipment for various
types of emergencies?
Provides a decision aid for choosing
proper equipment and required medical
supplies based on the chemicals involved.
5. Stores the inventory of local
response equipment and provides
location and availability
information?
Assists in the identification of equipment
available from chemical facilities, local
emergency responders, hospitals,
other communities, and private
contractors.
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Criteria
EMERGENCY RESPONSE PLANNING (Continued)
Explanation/Examples
6. Stores information on community
emergency procedures and plans?
Direction and control; communications:
evacuation and sheltering: medical
treatment facilities: resource management:
cleanup and disposal: decontamination: and
documentation.
7. Provides criteria for evaluating
existing emergency response
functions?
Identifies the essential elements that
should be present in the plans based
on regulatory requirements and local
community priorities.
Prompts for information to update
emergency response plans?
Flags information that changes frequently
(e.g., emergency contacts, telephone
numbers, and addresses).
9. Identifies hazardous material
training program requirements
and stores training information
and schedules?
Provides criteria for evaluation of training
programs and stores information on
training completed per regulatory
requirements.
10. Provides simulation capabilities
for training?
Provides example test emergencies to
exercise the plan and train response personnel.
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IDENTIFICATION OF REGULATORY REQUIREMENTS
Objective: Track regulatory deadlines and assist in the assessment of compliance with reporting
requirements, as well as record the status of required information and log requests for informa-
tion.
NOTE: These criteria concentrate on planning and response requirements of Title III of SARA. The
following is only a partial list of the possible capabilities that computer applications may possess
with
regard to the identification of regulatory requirements.
Criteria
Explanation/Examples
1. Tracks deadlines for reporting
requirements under Title III of
SARA?
Deadlines for reporting as required
under Title 111 of SARA Sections 302, 304,
311-312, and 313.
2. Provides a means to respond to
information reporting requirements
of Title III of SARA?
Report capabilities may include
production of the submission forms or
letters or partial assembly of the needed
information.
3. Has the capability to store and
manage MSDS and chemical
inventory form data?
Data manipulation including cross
indexing lists to identify all facilities
using a particular chemical.
4. Addresses public requests for
information under Title III of SARA?
Record type and number of requests
and provide information to answer them.
5. Tracks the status of planning
in the local districts?
Identify when a plan was developed
and when it was last updated.
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APPENDIX L
SELECTED BIBLIOGRAPHY
This appendix lists some other documents that may prove helpful to anyone organizing a community
awareness and preparedness program for responding to releases of extremely hazardous substances
(EHSs).
1. Hazardous Materials Emergency Planning Guide (NRT-1). Washington, D.C.: National Response
Team: prepared by ICF Incorporated, 1987.
NRT-1 was prepared to comply with the requirement in Section 303(f) of SARA. It contains general
guidance on selecting and organizing the planning team, and describes how to carry out fundamental
planning tasks (e.g., review existing plans, assess response capabilities, conduct a hazards analysis).
The guide describes in detail what should be included in a hazardous materials emergency plan and
suggests how this material could be organized.
NRT-1 can be obtained free of charge from:.
Hazmat Planning Guide WH-562A
401 M Street, S.W.
Washington, D.C. 20460
2. Community Teamwork: Working Together to Promote Hazardous Materials Transportation Safety.
Washington, D.C.: U.S. Department of Transportation (DOT), Research and Special Programs
Administration; prepared by Cambridge Systematics, Inc. 1983.
This publication provides State and local (i.e., fire, police, emergency service/civil defense, transpor-
tation, public safety, and environmental protection) officials with guidance on the most efficient use of
their resources to develop effective hazardous materials programs. The bulk of the guide describes
how one can, with a limited budget (1) perform a risk analysis: (2) obtain and mobilize emergency
response services: (3) perform hazardous materials inspections: and (4) obtain hazardous materials
training.
Deliberate and detailed attention to minimizing costs is a- consistent aspect of DOT's Community
Teamwork. Because most communities must take into consideration strict budget limitations when
devising preparedness plans, Community Teamwork should be of interest for this reason alone. Com-
munity Teamwork will also prove helpful to those planning to provide personnel safety equipment and
clothing. Copies of Community Teamwork can be obtained by calling (202) 426-2301 or writing to:
Office of Hazardous Materials Transportation, Attn.: DHM-50
Research and Special Programs Administration
Department of Transportation
400 7th Street, S.W.
Washington, D.C. 20590
3. Hazardous Materials Management System: A Guide for Local Emergency Managers. Portland:
Multnomah County Office of Emergency Management, 1983.
This handbook is a detailed guidance document prepared at the local level and published by the
Multnomah County Office of Emergency Management in Portland, Oregon. This handbook guides the
local emergency manager in the development and implementation of a comprehensive system ap-
proach for dealing with hazardous materials incidents within a specific geographic area. It is written
from the perspective that such a system is multi-disciplinary and requires a team effort under the
leadership of a local "emergency manager."
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4.
Information on availability of the Multnomah County guide can be obtained by calling (503) 255-3600 or
writing to:
Multnomah County Emergency Management
12240 N.E. Glizan
Portland, Oregon 97230
4. Community Awareness and Emergency Response Program Handbook. Washington, D.C.: Chemical
Manufacturers Association (CMA), 1985.
This private sector planning document is similar to those prepared by government agencies. However,
the CMA document addresses two areas of chemical plant management:
Community awareness: developing a community outreach program and providing the public
with information on chemicals manufactured or used at local chemical plants: and
Emergency response planning: combining chemical plant emergency plans with other local
planning.
This CMA document presumes that the key organizing person might have no experience in contin-
gency planning; hence, the information is provided in elementary detail to help just such an organizer.
Pages 1-40 will prove helpful to any community preparing to develop an emergency plan to respond to
EHS incidents. Appendix 1 lists typical components of a chemical plant emergency response plan:
Appendix 2 provides highlights of interrelated plant, community, and State plans.
Copies of the CMA guide are available for $10.00 and can be obtained by calling (202) 887-1100 or
writing to:
Chemical Manufacturers Association
2501 M Street, N.W.
Washington, D.C. 20037
5. An Unconstrained Overview of the Critical Elements in a Model Stare System for Emergency Re-
sponses to Radiological Transportation /nc/cfenfi'Vashington, D.C.: U.S. Nuclear Regulatory
Commission and U.S. Environmental Protection Agency; prepared by Rockwell International,
1981.
6. Atmospheric Emergencies: Existing Capabilities and Future Needs. Washington, D.C.: Transporta-
tion Research Board, 1983.
7. Chemical Hazards Response Information System (CHRIS), Manual II: Hazardous Chemical Data.
Washington, D.C.: United States Coast Guard, Department of Transportation, 1984.
8. Criteria and Methods for Preparing Emergency Exposure Guidance Level (EEGL) Documents.
Washington, D.C.: National Research Council, May 1985.
9. Criteria for Preparation and Evaluation of Radiological Emergency Response Plans and Prepared-
ness in Support of Nuclear Power Plants. Washington, D. C. : U.S. Nuclear Regulatory Commission
and Federal Emergency Management Agency, 1980. (NUREG 0654/FEMA-REP-1).
10. Emergency Planning, Student Manual. Washington, D.C.: Federal Emergency Management
Agency, August 1983.
11. Disaster Operations: A Handbook for Local Governments. Washington, D.C.: Federal Emergency
Management Agency, 1981.
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12. 7987 Emergency Response Guidebook. Washington, D.C.: U.S. Department of Transportation,
1987. This guidebook is available at:
Office of Hazardous Materials Transportation, Attn. : DHM-50
Research and Special Programs Administration
Department of Transportation
400 7th Street, S.W.
Washington, D.C. 20590
13. Guidance for Developing State and Local Radiological Emergency Response Plans and Preparedness
for Transportation Accidents. Washington, D.C.: Federal Emergency Management Agency, 1983.
(FEMA-REP-5)
14. Guide and Checklist for the Development and Evaluation of State and Local Government Radiologi-
cal Emergency Response Plans in Support of Fixed Nuclear Facilities. Washington, D.C.: U.S.
Nuclear Regulatory Commission, Office of International and State Programs, 1974.
15. Guide for Development of State and Local Emergency Operations Plans, CPG 1-8. Washington,
D.C.: Federal Emergency Management Agency, October 1985.
16. Multi-Media Compliance Inspection: Union Carbide Corporation, Institute, WV. Philadelphia:
Environmental Protection Agency, Region III, 1985.
17. The National Oil and Hazardous Substances Pollution Contingency Plan. Washington, D.C.: U.S.
Environmental Protection Agency, 40 CFR Part 300. (Usually referred to as the National Contin-
gency Plan).
18. Objectives for Local Emergency Management, CPG 1-5. Washington, D.C.: Federal Emergency
Management Agency, July 1984.
19. Risk Assessment/Vulnerability Users Manual for Small Communities and Rural Areas. Washington,
D.C.: U.S. Department of Transportation, Research and Special Programs Administration; Pre-
pared by Department of Civil Engineering, Kansas State University, 1981.
20. Emergency Handling of Hazardous Materials in Surface Transportation, Student, Patrick J. (ed).
Washington, D.C.: Association of American Railroads, Bureau of Explosives, 1981,
21. Overview of Environmental Pollution in the Kanawha Valley, Vincent, James R,. Denver: EPA
Office of Enforcement and Compliance Monitoring, 1984.
22. Highly Hazardous Materials Spills and Emergency Planning, Zajic, J.E., and Himmelman, N.A.
New York: Marcel Dekker, Inc., 1978.
23. Hazardous Materials Transportation: A Synthesis of Lessons Learned from the DOT Demonstration
Projects. Washington, D.C.: ICF Incorporated. This report summarizes seven DOT-sponsored
demonstration projects on prevention and preparedness planning. Appendix F contains a discus-
sion of the lessons learned so that other communities can benefit from the experience.
24. Hazardous Materials Response Guide, Kelty, J. Emergency Response Unit, Illinois Environmental
Protection Agency. This guide is designed to provide rapid access to information on hazardous
properties of chemicals involved in emergency incidents.
25. Safeguards Report. University of Charleston, Charleston, West Virginia: National Institute for
Chemical Studies, November 1986. A Community Hazard Assessment for the Kanawha Valley of
West Virginia.
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26. Criteria and Methods for Preparing Emergency Exposure Guidance Level (EEGL), Short-Term Pub-
lic Emergency Guidance Level (SPEGL), and Continuous Exposure Guidance Level (CEGL) Docu-
ments. Washington, D.C.: National Academy Press, 1986. This document was developed by the
Board on Toxicology and Environmental Health Hazards of the National Research Council. It is
designed exclusively for the use of the Department of Defense (DoD) for the chemicals of interest
to it.
27. The Workbook of Atmospheric Dispersion Estimates, Turner, B., Public Health Service Publication
No. 999-AP-26, 1970.
28. Analysis of Hazardous Materials Emergencies for Emergency Program Managers: Student Manual.
FEMA SM-110.
29. DOT Hazardous Materials Table. 49 CFR 172.101.
30. Fire Protection Guide on Hazardous Materials. Quincy, MA.: National Fire Protection Association,
1986.
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APPENDIX M
EPA AND FEMA REGIONAL CONTACTS
A. EPA Regional Preparedness Contacts
Region I
(Maine, Vermont, New Hampshire, Massachusetts,
Rhode Island, Connecticut)
60 Westview Street
Lexington, MA 02173
Environmental Services Division
(617) 861-6700, ext. 221
Region II
(New York, New Jersey, Puerto Rico, Virgin Islands)
26 Federal Plaza
Room 900
New York, NY 10278
Response and Prevention Branch
New Jersey: (201) 321-6657
New York: (212) 264-2525
Region III
(Pennsylvania, Maryland, D.C., Delaware, Virginia,
West Virginia)
841 Chestnut Street
Philadelphia, PA 19107
Office of Emergency Response
(215) 597-8907
Region IV
(North Carolina, South Carolina, Georgia,
Florida, Mississippi, Alabama, Tennessee, Kentucky)
345 Courtland Street, N.E.
Atlanta, GA 30365
Emergency Response and Control
Section
(404) 347-3931
Region V
(Wisconsin, Illinois, Indiana, Michigan,
Ohio, Minnesota)
230 South Dearborn Street
Chicago, IL 60604
Emergency Response Section
(312) 886-1964
Region VI
(New Mexico, Texas, Oklahoma, Louisiana, Arkansas)
1445 Ross Avenue
Allied Bank Tower at Fountain Place
Dallas, TX 75202
Regional Information Center
(214) 655-2270
Region VII
(Nebraska, Kansas, Iowa, Missouri)
726 Minnesota Avenue
Kansas City, KS 66101
Preparedness Coordinator
(9 13) 236-2806
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Region VIM
(Montana, Wyoming, Utah, Colorado,
North Dakota, South Dakota)
One Denver Place
999 18th Street
Suite 500 Denver, CO 80202
Emergency Response Branch
(303) 293-1723
Region IX
(California, Nevada, Arizona, Hawaii,
American Samoa, Guam)
215 Fremont Street
San Francisco, CA 94105
Toxics Division
(415) 974-7460
Region X
(Washington, Oregon, Idaho, Alaska)
1200 Sixth Avenue
Seattle, WA 98101
Hazardous Waste Division
Emergency Response Team
(206) 442-1263
Title III/CEPP Information HOTLINE NUMBER
1-800-535-0202 (in Washington, D.C.: (202) 479-2449)
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B. FEMA Regional Offices
(Note: Direct all requests to the "Hazmat Program Staff" of the appropriate FEMA
Regional office.)
Region I
(Connecticut, Maine, Massachusettes,
New Hampshire, Rhode Island, Vermont)
442 J. W. McCormack POCH
Boston, MA 02109
(617) 223-9540
Region II
(New Jersey, New York, Puerto Rico,
Virgin Islands)
Room 1337
26 Federal Plaza
New York, NY 10278
(212) 238-8208
Region III
(Delaware, Washington DC, Maryland,
Pennsylvania, Virginia, West Virginia)
Liberty Square Building
105 S. 7th Street
Philadelphia, PA 19106
(215) 597-9416
Region IV
(Alabama, Florida, Georgia, Kentucky,
Mississippi, North Carolina,
South Carolina, Tennessee)
Suite 700
1371 Peachtree Street, N.E.
Atlanta, GA 30309
(404) 347-2400
Region V
(Illinois, Indiana, Michigan,
Minnesota, Ohio, Wisconsin)
4th Floor
175 W. Jackson Blvd.
Chicago, IL 60604
(312) 431-5501
Region VI
(Arkansas, Louisiana, New Mexico,
Oklahoma, Texas)
Federal Regional Center, Room 206
800 N. Loop 288
Denton, TX 76201-3698
(817) 898-9399
Region VII
(Iowa, Kansas, Missouri, Nebraska)
911 Walnut Street, Room 300
Kansas City, MO 64106
(816) 283-7060
Region VIM
(Colorado, Montana, North Dakota,
South Dakota, Utah, Wyoming)
Denver Federal Center, Building 710
Box 25267
Denver, CO 80225-0267
(303) 235-4811
Region IX
(Arizona, California, Hawaii, Nevada,
American Samoa, Guam)
Building 105
Presidio of San Francisco, CA 94129
(415) 923-7100
Region X
(Alaska, Idaho, Oregon, Washington)
Federal Regional Center
130 228th St., S.W.
Bothell, WA 98021-9796
(206) 481-8800
US GOVERNMENT PRINTING OFFICE 1991-5 17- 003/ 4 7004
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