ACCIDENT PREVENTION AND
RESPONSE MANUAL
For
Anhydrous Ammonia Refrigeration
System Operators
U.S. Environmental Protection Agency Region 7
June 2015
(Fourth Edition)
EPA-907-B-1-9001
http://www2.epa.gov/rtnp/accident-prevention-and-response-tnanual-anhvdrous-atntnonia-
refrigeration-system-operators
-------
What's this Manual All About?
There are many laws and regulations in place to protect
operators, other employees, and surrounding communities from
the potential hazards of working with toxic chemicals like
anhydrous ammonia.
This manual summarizes the requirements of environmental and
safety laws for anhydrous ammonia refrigeration system
operators. A list of the federal laws and regulations related to
process safety, accident prevention, emergency planning, and
release reporting may be found in Appendix C.
Many anhydrous ammonia system operators know their systems inside and out. If you are
already familiar with the environmental laws and regulations that pertain to your system, then
you are invited to test your knowledge by taking the quiz in Appendix E. If you score 100% -
CONGRATULATIONS and you may not need this manual. If you score less than 100%, this
manual will help you update your knowledge base. Good luck!
Test your ammonia refrigeration knowledge in Appendix E.
This manual has been prepared by the Environmental Protection Agency Region 7 (Iowa, Kansas,
Missouri & Nebraska). Region 7 thanks all who contributed their time and expertise to the
development of this manual. A special thanks to the final editor, Patricia Reitz, of EPA Region 7.
Notes about this Fourth Edition:
The third edition was published March 2006. Since then several new recognized and generally accepted good engineering
practices (RAGAGEPS) have been embraced as industry standards. This fourth edition is updated to reflect these new
standards.
Disclaimers:
• This manual provides guidance to assist regulated entities in understanding their obligations in accordance with
environmental laws. For a complete understanding of all legal requirements, the reader must refer to applicable federal
and state statutes and regulations. This manual is not a substitute for regulations, nor is it a regulation itself. Thus, it
cannot impose legally binding requirements of EPA, states, or the regulated community.
• This guidance does not represent final agency action and may change in the future, as appropriate.
• This guidance does not limit the otherwise lawful prerogatives of regulating agencies. Agencies may act at variance with
this guidance based on facility specific circumstances.
• Mention of trade names, commercial products, industry references, and technical resources does not constitute an
endorsement or recommendation for use.
-------
Table of Contents
CHAPTER 1-WHAT'S THE BIG EMERGENCY? 1.1
1.1 Accidents Happen 1.1
1.2 Why is Anhydrous Ammonia so Dangerous? 1.2
CHAPTER 2-IS MY FACILITY A SAFETY RISK? 2.1
2.1 Determine Your Responsibility 2.1
2.1.1OSHA Requirements 2.1
2.1.2 EPA Requirements 2.1
2.1.3 DHS Requirements 2.3
CHAPTER 3-PREVENTING ACCIDENTS 3.1
3.1 Work Safely 3.1
3.1.1 Worker and System Protection 3.2
3.1.2 System Operations and Maintenance 3.13
3.1.3 System Inspections 3.18
3.1.4 Training 3.19
3.2 Property Security 3.20
3.3 Other RAGAGEP 3.22
CHAPTER 4-WHAT TO DO WHEN THERE IS AN ACCIDENT 4.1
4.1 Be Prepared 4.1
4.2 Report the Accident 4.2
4.3 Investigations 4.5
-------
APPENDIX A - CLEAN AIR ACT (CAA) PREVENTION PROGRAM REQUIREMENTS A.I
A.I Risk Management Program Level A.I
A.2 Program 3 Requirements A.I
A.2.1 Management System A.I
A.2.2 Hazard Assessment A.2
A.2.3 Prevention Program A.2
A.2.4 Emergency Response A.3
A.2.5 Risk Management Plan A.4
A.3 Compliance A.5
A.4 Deregistration A.6
APPENDIX B-EMERGENCY PLANNING B.I
B.I Emergency Response Planning B.I
B.2 Emergency Response Program B.2
B.2.1 Emergency Response Plan (ERP) B.2
B.2.2 Emergency Response Equipment B.5
B.2.3 Train All Employees B.5
B.2.4 Review and Update ERP B.5
B.3 Practice Your Plan B.5
B.4 Emergency Planning and Response Guidance B.8
APPENDIX C-GOVERNMENT REQUIREMENTS C.I
C.I Federal Requirements C.I
C.2 State and Local Requirements C.7
APPENDIX D - EDUCATION AND INFORMATION RESOURCES D.I
APPENDIX E-AN HYDROUS AMMONIA HANDLING QUIZ E.I
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
CHAPTER 1 - WHAT'S THE BIG EMERGENCY?
1.1 Accidents Happen
Ammonia is used as a refrigerant at a large number
of industrial facilities, such as:
• Cold storage warehouses and ice plants,
• Meat, poultry, or fish processing plants,
• Dairy and ice cream plants,
• Wineries and breweries,
• Fruit/vegetable juice and soft drink
processing facilities, and
• Chemical manufacturing facilities
72% of all reported chemical accidents in Iowa, Kansas, Missouri, and
Nebraska involve anhydrous ammonia. Up to 96% of them are
preventable through increased operator training, improved procedures,
and better communication of lessons learned.
(Based on chemical accidents required by EPA to be reported by industry from 2004-2014.)
Accidental ammonia releases cause injuries and death to
employees, emergency response personnel, and people in
surrounding communities.
Here are some examples:
Two Workers Killed in
Cold Storage Accident
In May 2009, a leak of
anhydrous ammonia killed 2
maintenance workers at a cold
storage facility in Kentucky.
Plant employees described the
vapors as too thick to see
through.
Thirty-Two
Hospitalized after
Rupture of
Refrigeration Piping
In August 2010, 32 offsite
workers were hospitalized
after a cold storage facility in
Alabama released more than
32,000 pounds of anhydrous
ammonia. The refrigeration
system experienced a sudden,
localized pressure surge called
"hydraulic shock", causing
catastrophic failure of piping,
valves, and other system
components.
Seven in Intensive
Care Following
Ammonia Leak
In March 2011, a poultry
plant in Alabama accidently
released 32,000 pounds of
anhydrous ammonia resulting
in $4 million in product
losses. Approximately 150
people were taken to the
hospital. The leak prompted
road closures and the
evacuation of workers and
neighboring residents. Factors
contributing to the accident
include an early termination to
the defrost cycle causing
hydraulic thermal shock, too
many evaporators going into
defrost at the same time, and
equipment and operator error.
CHAPTER 1 - WHAT'S THE BIG EMERGENCY?
Page 1.1
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
1.2 Why Is Anhydrous Ammonia So Dangerous?
Anhydrous ammonia and ammonium hydroxide are two types of ammonia commonly used
in industry. This manual will focus on the "anhydrous" type, which means, "without
water." (Ammonium hydroxide is formed when ammonia gas is dissolved in water.)
Anhydrous ammonia is very corrosive, and exposure to it may result in chemical-type
burns to skin, eyes, and lungs. It may also result in frostbite, since its boiling point is
-28°F. Ammonia is hygroscopic, which means it has a high affinity for water, and migrates
to moist areas like the eyes, nose, mouth, throat, and moist skin.
Released anhydrous ammonia will rapidly absorb
moisture from air and form a dense, visible white cloud.
This dense cloud tends to travel along the ground on a
cool day. Do not enter a visible cloud of ammonia. It
will damage your lungs!
If there is no visible cloud, you can still detect an
ammonia release by its pungent odor when it is present
in the concentration of 5 to 50 parts per million by
volume (ppm*). Exposure to anhydrous ammonia
between 5 and 50 ppm can cause headaches, loss of
the sense of smell, nausea, and vomiting
Concentrations above 50 ppm result in irritation to
the nose, mouth, and throat causing coughing and
wheezing. Concentrations of 300 to 500 ppm are
immediately dangerous to life. People will generally
leave the area due to lung irritation, coughing, and
shortness of breath. Higher exposures can cause
fluid in the lungs (pulmonary edema), and severe
shortness of breath, which may possibly lead to death.
Inhaling anhydrous
ammonia can cause
severe coughing.
*An example of parts per million (ppm) is one (1) needle in a 2000 pound haystack.
CHAPTER 1 - WHAT'S THE BIG EMERGENCY?
Page 1.2
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Ammonia is also flammable and explosive at the right
concentrations, which is more likely to happen when released
in a confined space, such as inside a building. It can be ignited
by something as common as the electric flash from a switch.
I
The best first aid is to prevent the injury in the
first place. Preventing accidents not only
keeps employees healthier and more
productive, it saves a lot of wasted time and
money from having to repair equipment, pay
for injured employees' medical expenses, lost
product, and having to clean up the mess.
Chapter 3 discusses how to prevent accidents.
CHAPTER 1 - WHAT'S THE BIG EMERGENCY?
Page 1.3
-------
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
CHAPTER 2 - IS MY FACILITY A SAFETY RISK?
2.1 Determine Your Responsibility
Keeping employees, emergency workers, and the surrounding community safe is of utmost
importance. Therefore, Congress has enacted laws requiring facilities who handle
hazardous chemicals to have a plan in place to prevent accidents and a plan on how to
respond to emergencies that might occur. The provisions of some of these laws are
summarized below.
2.1.1 OSHA Requirements
Ammonia refrigeration systems with 10,000 pounds (approximately 2000 gallons) or
more of ammonia are a covered process subject to the requirements of the Occupational
Safety and Health Administration (OSHA) Process Safety Management (PSM)
Standard [29 CFR 1910.119]. If the ammonia refrigeration system has less than
10,000 pounds, the facility is subject to the requirements of the General Duty Clause
(see Section 3.1). More information about OSHA's PSM program may be found
athttps://www.osha.gov/SLTC/processsafetvmanagement/.
2.1.2 EPA Requirements
EPA published a document, "Anhydrous
Ammonia at Refrigeration Facilities
Under Scrutiny by U.S. EPA" to help make
aware anhydrous ammonia refrigeration
operators' responsibility to prevent accidental
ammonia releases and manage their process
safely. This document may be accessed at:
http ://www2. epa.gov/enforcement/enforcement-
alert-epa-enforcement-efforts-focus-prevention-
chemical-accidents.
Anhvilrom Ammonia Lit Refrigeration Facilities
1'niltr Scrulinr b I'.S. EPA
Chapter 2 - IS MY FACILITY A SAFETY RISK?
Page 2.1
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Under Section 112(r) of the Clean Air Act (CAA) and Title
40 of the Code of Federal Regulations (CFR), Part 68, owners
and operators of stationary sources are required to develop
Risk Management Programs for each regulated substance in
a process http://www.ecfr.gov/cgi-bin/text-
idx?tpl=/ecfrbrowse/Title40/40cfr68 main O2.tpl.
The goal of EPA's Risk Management Program is to prevent or
minimize consequences of accidental releases of certain
hazardous substances.
Compliance with 40 CFR 68 is required if the facility has
more than the threshold quantity of a regulated substance in
a process (including storage) at any given time. The
threshold quantity for anhydrous ammonia (CAS#7664-41-7) is 10,000 pounds.
To help determine if your process is subject to the Risk Management Program, EPA
developed a guidance for refrigeration facilities: http://www2.epa.gov/rmp/general-
rmp-guidance-appendix-e-supplemental-risk-management-program-guidance-ammonia.
Ammonia refrigeration systems under 10,000 pounds are subject to CAA 112(r)(l);
General Duty Clause. You may find more information about the General Duty Clause
at http://www2.epa.gov/rmp/general-duty-clause-fact-sheet.
If you find that one or more of your processes are subject to this rule, you will need to
determine whether each process is subject to Program 1, Program 2, or Program 3. If
your facility is subject to OSHA PSM, then you are subject to Program 3 of the EPA
Risk Management Program. For more information and guidance concerning the Risk
Management Program, please visit http://www2.epa.gov/rmp. For assistance in filing
a Risk Management Plan, which is accepted only electronically, please
visit http://www2.epa.gov/rmp/rmpesubmit.
EPA also administers the Emergency Planning and Community Right to Know Act
(EPCRA). Facilities that handle and/or store extremely hazardous substances (EHSs)
above a 500 pound threshold are required to report these chemicals under EPCRA
Section 312 (Tier II Report). If an ammonia refrigeration facility has 10,000 pounds
or more in its system during any calendar year, they are subject to EPCRA Section 313
reporting (Toxic Release Inventory Form A or Form R). EPCRA also requires that
facilities which are subject to Section 312 and/or Section 313 coordinate with their
Local Emergency Planning Committee and their State Emergency Response
Chapter 2 - IS MY FACILITY A SAFETY RISK?
Page 2.2
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Commission. For additional information on these reporting requirements, please
visit http ://www2. epa. gov/epcra.
2.1.3 DHS Requirements
The Department of Homeland Security (DHS) regulates chemical facilities that
"present high levels of security risk." In Section 550 of the Homeland Security
Appropriations Act of 2007 (P.L. 109-295) (Act), Congress gave the DHS regulatory
authority over security at high-risk chemical facilities. In the Act, Congress instructed
DHS to require all "high-risk" chemical facilities to complete:
* Security vulnerability assessments,
* Develop site security plans, and
* Implement protective measures necessary to meet DHS-defmed risk-based
performance standards.
In April 2007, DHS promulgated
the Chemical Facilities Anti-
Terrorism Standards (CFATS)
regulation. To determine which
chemical facilities meet the
CFATS criteria for "high-risk"
chemical facilities, the
Department developed the
Chemical Security Assessment
Tool (CSAT) Top-Screen, an
easy-to-use on-line questionnaire
that must be completed by
facilities that possess any
chemical on the CFATS DHS
Chemicals of Interest List at or
above the listed Screening
Threshold Quantity (STQ) for
each chemical. The STQ for
anhydrous ammonia is 10,000
pounds, which is the same
threshold quantity as the OSHA
PSM and EPA Risk Management
] CSAT Top-Screen Queitioni
I Facility Description
Choose the facility type that best describes you facility
[0:1.1-95] ' ' -
O Chemical m anulactun nci , usage, slonarie, and di Si ibutio
O Petroleum refining
O Liquefied natural gas storage
Facility Regulatory Mandates
Is the facility regulated pursuant to the Maritime Transportation Security Act of 2DD2,
Public Uw107-295, as amended?
[0:13-95]
0 Yes, the facility is regulated pursuant to MTSA.
O No, the facility is not regulated pursuant to MTSA
O Partially: The site includes both a facility regulated pursuant to MTSA and a facility not
regulated pursuant to MTSA.
» If the site includes bc:h a tac ityregusted IJLII :uant to :he Mant Tie Trarspoi:ati:-i Seci.it it / .-a
cl 2002, P ublic Law107-295, as amended, and a rarrlrtv not r-iul atp,-: pur aiant to the Maritime
T -are oortatior Sec untv Act, = ect' Part all v1 and cormue tc -=11 oui the :,:- =en for :he lacih:v nc:
:ulj|e:t to the Maritime Transportation Security Act.
Is the facility a Public Water Systems, as defined by section 1401 of the Safe Drinking Act,
Public Law 93-523, as amended?
[Q: 13-86]
0 Yes, the facility is a PublicWater System.
O No, the facility is not a PublicWater System.
0 Partially: the facility contains a PublicWater System regulated under the Safe Drinking
Water Act, bi.it also contain; component-1h,at are not so regulated
* If the facility contains a Public Water System as defined by the Safe Drinking Water Act, but
also contains components that are not covered by that definition, select "Partially" and continue to
fill out the screen tor the portion of the lanlit- nrr T, ,-),--fir=rl i.-irli--i1hi= ".SP Hr ink ing V'..'ater .Jid
DHS Form 9007
Chapter 2 - IS MY FACILITY A SAFETY RISK?
Page 2.3
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Program thresholds. (See Table 2.1 for more anhydrous ammonia thresholds.)
Visit http://www.dhs.gov/publication/csat-ts-questions to review the CSAT Top Screen
Questions Guide.
DHS has defined "risk-based performance standards for chemical facilities."
A performance standard specifies the outcome required, and allows the company to
determine how the outcome is achieved. There are eighteen (18) Risk-Based
Performance Standards that covered chemical facilities must meet to be in compliance
with CFATS.
1) Restrict Area Perimeter
2) Secure Site Assets
3) Screen and Control Access
4) Deter, Detect, and Delay
5) Shipping, Receipt, and Storage
6) Theft and Diversion
7) Sabotage
8) Cyber
9) Response
10) Monitoring
11) Training
12) Personnel Surety
13) Elevated Threats
14) Specific Threats, Vulnerabilities, or
Risks
15) Reporting of Significant Security
Incidents
16) Significant Security Incidents and
Suspicious Activities
17) Officials and Organization
18) Records
For more information, see Risk-Based Performance Standards Guidance; Chemical
Facility Anti-Terrorism Standards; May 2009
at http://www.dhs.gov/sites/default/files/publications/CFATS-Risk-Based-
Performance-Standards-508.pdf.
Chapter 2 - IS MY FACILITY A SAFETY RISK?
Page 2.4
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Table 2.1. Threshold/Reportable Quantities for Anhydrous Ammonia
Agency/Program (Code of Federal Register)
OSHAPSM (29 CFR 1910.119)
EPA Risk Management Program (40 CFR Part 68)
EPA General Duty Clause [CAA H2(r)(i)]
EPA EPCRA* 313, Toxic Release Inventory (40 CFR 372)
EPA EPCRA* 302 & 312, Hazardous Chemical Notification and
Inventory Reporting (40 CFR 355.10 & 40 CFR 370)
EPA EPCRA* 304 Emergency Notification Release Reporting
(40 CFR 355.30)
EPACERCLA**103 Emergency Notification Release
Reporting (40 CFR 302.6)
DHS CFATS (6 CFR 27.210(1)0 & d)
Threshold Quantity (TQ)
Reportable Quantity (RQ)
(pounds)
TQ 10,000
TQ10,000
Less than TQ of 10,000
"Otherwise Used" TQ
10,000
TQ500
RQ100
RQ100
TQ 10,000
* EPCRA is the Emergency Planning Community Right to Know Act.
** CERCLA is the Comprehensive Environmental Response, Compensation, and Liability Act, also known
as Superfund.
For additional information on Federal, State, and local
requirements, please visit Appendix C of this manual
Chapter 2 - IS MY FACILITY A SAFETY RISK?
Page 2.5
-------
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
CHAPTER 3 - PREVENTING ACCIDENTS
3.1 Work Safely
As mentioned in Chapter 1, ninety six (96) percent of accidents are
preventable through increased operator training, improved
procedures, and better communication of lessons learned.
A major component of working safely is to develop and
implement recognized and generally accepted good engineering
practices (RAGAGEP) at your facility RAGAGEP can include
regulations, code, standards, guidelines, engineering documents,
and/or safety data sheets.
No matter the amount of anhydrous ammonia in your refrigeration system, it is important to
adhere to RAGAGEP. If your refrigeration facility has an inventory of 10,000 pounds or
more of anhydrous ammonia, your facility is subject to the OSHA Process Safety
Management and the EPA Risk Management Program regulations.
RAGAGEP for refrigeration facilities with any amount of anhydrous
ammonia is IIAR Ammonia Refrigeration Management (ARM) Program.
All facilities that have anhydrous
ammonia in the refrigeration system
(even if less than 10,000 pounds) are
subject to the General Duty Clause.
The General Duty Clause requires
RAGAGEP such as adherence to a
program like the International Institute of
Ammonia Refrigeration (IIAR) Ammonia
Refrigeration Management (ARM).
You may find more information about the
General Duty Clause at
http://www2.epa.gov/rmp/general-duty-
clause-fact-sheet.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.1
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
3.1.1 Worker and System Protection
Personnel at ammonia refrigeration facilities should be aware of the hazards associated
with anhydrous ammonia releases and the measures that can be taken to prevent such
releases.
The best and most simple rule of thumb is to
"Keep the ammonia in the system ".
Safety practices where EPA inspectors frequently note deficiencies are
described, as follows:
Develop Operating Procedures
Operating procedures must be developed and implemented in accordance to 40 CFR
68.69. The safety of refrigeration operators and maintenance personnel is enhanced by
their training in and understanding of the facility's operating and maintenance
procedures before performing
routine tasks (e.g., adding ammonia,
removing oil, replacing a valve,
etc.).
The primary RA GA GEP
for developing operating
procedures is ANSI/IIAR
Standard 7-2013
Developing Operating
Procedures for Closed-
Circuit Ammonia
Mechanical Refrigerating
Systems.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.2
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Oil Removal
For proper system maintenance, refrigeration oil should be removed from the
refrigeration system as needed. The majority of plants with industrial ammonia
refrigeration systems utilize an oil pot which is a vessel equipped with an oil drain
valve in series with either a self-closing or manual quick-closing emergency stop valve
connected to the oil drain point, a vent line, a vent line isolation valve, and an approved
pressure relief device. It is common to tell if an oil pot needs draining by the frost-
line.
Vapor Ammonia
Liquid Ammonia
The RAGAGEPfor removing oil is IIAR 2.
Using a spring-loaded 1/4 turn ball or globe valve
with an oil drain container is considered a
RAGAGEP. A "self-closing," also called "deadman
valve," functions as an emergency stop valve to
prevent an ammonia release if the operator draining
oil is overcome or must abandon his work station.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.3
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Operator with plant-required
personal protective equipment
donned performing an oil drain.
Note the oil pot is not frosted
during the actual oil draining.
Also note the second operator in
the background behind the oil pot
serving as a backup.
For more detailed information on oil management, please refer to "The Cold Front" Newsletter
Vol. 14 No. 3, 2014 by the Industrial Refrigeration Consortium, which may be found at
http://www.irc.wisc.edu/?/download, under "Publications" in the right column.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.4
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Protect Equipment, Tanks, Piping
Forklifts, hand trucks, and other maintenance vehicles can and have caused ammonia
releases after damaging unprotected components of ammonia refrigeration systems.
It is good practice to provide barriers or establish safety procedures to protect
refrigeration equipment (e.g., pipes, valves, evaporator coils, tanks, vessels, etc.) likely
to be damaged.
Example of structural
horizontal barriers
(yellow) which help
prevent forklifts or other
objects from damaging
ammonia piping.
Examples of how facilities are physically protecting refrigeration equipment include:
o Installing horizontal and vertical structural members to prevent products on
pallets from falling against refrigeration equipment;
o Blocking access to storage bins
immediately adjacent to and
below refrigeration equipment;
and
o Installing concrete curbs,
barriers, bollards, or aprons to
prevent wheeled equipment
from impacting equipment.
Bollards (yellow) to protect tanks, pipe,
valves, and coils from forklift impact.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.5
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Install, Maintain, and Inspect Ammonia Detector Systems
IIAR 2 requires at least two (2) ammonia detectors in the machinery room to monitor
for leaks. In addition, consider installing detectors in areas where a leak could occur
or an area which is not manned 24 hours per day and 7 days a week. IIAR-2 requires
notification be sent to a "monitored location" when the ammonia detection system is
activated, so that corrective action can be taken. A "monitored location" is defined as
a means of continual oversight such as pagers, on-site staff, third-party alarm service,
or responsible party.
Example of an
ammonia
detection
device.
Operation of ammonia sensors and alarms must be tested and
calibrated regularly to ensure the alarms are functioning
properly and are set to alert personnel of a release.
The following are examples of detector problems that have
been noted during EPA inspections:
o Ammonia detectors were calibrated to alarm at 600 ppm, twice the IDLH
(immediately dangerous to life and health) level;
o Ammonia detectors did not function properly.
Facilities also have used ammonia detectors to activate ventilation fans in compressor
rooms and to trigger remote alarms to notify facility security personnel about accidental
releases of ammonia. Each alarm activates a call down system that alerts key
ammonia refrigeration personnel. IIAR 2 requires the machinery room ventilation
system to be actuated by detection systems (as well as manually).
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.6
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
There are numerous codes and standards that have requirements related to ammonia
detection system design, including IIAR 2 (Addendum B), ASHRAE 15, NFPA-1,
UMC, IFC, and IMC. In addition to these, many insurance carriers impose their own
requirements to mitigate the risk of loss of life and product in a facility. The table,
below, is an illustration of locations and concentration thresholds with corresponding
actions based on the lowest levels identified in the above-mentioned codes and
standards.
ROOM
Compressor Room
(minimum 2)
Compressor Room
(minimum 1)
Vent Line
Freezer
Cooler
Dock
Process Area
Production
ACTION
25 ppm -Alarm to monitored location
25 ppm - Horn Strobe outside each entrance and inside room
25 ppm - Normal Ventilation
1 50 ppm - Emergency Ventilation
10,000 ppm - Redundant Emergency Ventilation
20,000 ppm - Electrical Shunt trip OR
De-energize pumps, compressors, normally closed valves
1% - Alarm to monitored location
25 ppm
25 ppm
35 ppm
25 ppm
25 ppm
35 ppm
25 ppm
25 ppm
35 ppm
25 ppm
25 ppm
35 ppm
25 ppm
25 ppm
35 ppm
-Alarm to monitored location
- Horn Strobe
- Close liquid Solenoid valves
-Alarm to monitored location
- Horn Strobe
- Close liquid Solenoid valves
-Alarm to monitored location
- Horn Strobe
- Close liquid Solenoid valves
-Alarm to monitored location
- Horn Strobe
- Close liquid Solenoid valves
-Alarm to monitored location
- Horn Strobe
- Close liquid Solenoid valves
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.7
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
The following table specifies ammonia alarm system requirements per code.
AR-2B ASHRAE15
NFPA 12012
General
Machinery Room
De-energize
compressors,
pumps, NC valves
Machinery Room
De-energize all
electrical
Machinery Room
Audiovisual
Alarms inside
room and outside
each entrance
Machinery Room
Activate normal
ventilation
Machinery Room
Activate
emergency
ventilation
Power and
Supervision
Alarm signal t(
monitored
location
Machinery Room
Concentration
Display
Refrigerated
Audiovisual
40,000
PPM
25 PPM
25 PPM
1,000
PPM
Yes
1,000 PPM
Manual reset
inside
machine
room
1000 PPM
Suggested
1,000 PPM
40,000 PPM
or upper
limit of
detector
40,000 PPM
1,000 PPM
1,000 PPM
Per NFPA 72
Yes
Preprint
Comply with
IIAR2, ASHRAE
15
40,000 PPM or
upper limit of
detector
25 PPM
Manual reset
inside machine
room
25 PPM
1,000 PPM
Manual reset
only
Per NFPA 72
Yes per NFPA 1
50 PPM
Comply with
IMC-2012
40,000 PPM
or upper
limit of
detector
25 PPM*
"Approved
locations"
"approved
location"
Comply
with IIAR2,
ASHRAE 15,
IFC-2012
1,000 PPM
Any gas detection
systems installed
on a fire alarm
system shall
comply with ...
(same
requirements as
fire alarm)
Dedicated branch
circuit, 24 hour
UPS or backup
generator, trouble
signal indicating
fault in system.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.8
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Constant ventilation in a machinery room is an option available in place of ammonia
detection devices per the American National Standards Institute/American Society of
Heating, Refrigerating and Air-Conditioning Engineers (ANSI/ASHRAE) 15-2014
Safety Standard for Refrigeration Systems. When ammonia is used, the machinery
room is required to meet Class I, Division 2, of the National Electric Code (NEC),
unless:
o The mechanical ventilation system in
the machinery room is run
continuously and failure of the
mechanical ventilation system
actuates an alarm; or
o The machinery room is equipped with
a vapor detector that will
automatically start the mechanical
ventilation system and actuate an
alarm at a detection level not to
exceed 1000 ppm.
Install Emergency Ventilation Switches
Some facilities have installed manual switches to remotely activate ventilation fans.
Others have their ammonia detectors activate the fans at a certain parts per million
(ppm) level, and some facilities use continuous ventilation. It is recommended to have
the remote switches located near, yet at a safe distance from, the compressor room.
RA GA GEP recommends one set
of switches directly outside the
primary external exit and one at
a remote location per IIAR 2.
Identify the switches with
signagefor use in an
emergency.
DURING
EMERGENCY
PUSH BUTTON
FOR MAXIMUM
VENTILATION
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.9
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Install Check Valves in Ammonia Charging Line
Facilities should consider installing a manual check valve in the ammonia charging line
in a location close to the main control valve. This check valve can be used to isolate any
problems associated with the main control valve and prevent release or removal of
ammonia through the charging line.
Configure Remote Operation of Solenoid Valve on King Valve Line
It is best to install a solenoid valve in the King Valve line near the receiver vessel and
configure its operation by a manual switch located outside of the compressor/recycle
room. The system's manual emergency stop (estop) switch should also be clearly
recognizable by all facility personnel and emergency responders.
Install Dual Pressure Relief Valves
Facilities are replacing single pressure relief valves (PRVs) with dual relief valves to
facilitate the maintenance of relief valves. Installation of a dual relief valve consists of
one three-way manifold or selector valve and two pressure safety release valves. The
American Society of Heating, Refrigerating and Air Conditioning Engineers
(ASHRAE)'s Standard 15, Safety Standard for Refrigeration Systems, as well as IIAR 2
outlines the required use of dual PRVs.
Refrigeration PRVs are
recommended for replacement
every five (5) years.
Use of dual PRVs and a three-way valve
allows one relief valve to be serviced,
tested, or replaced, while the other PRV
remains on-line to protect the refrigeration
equipment. This configuration enables
the operator to keep the refrigeration
system operational rather than needing to
pump down the equipment each time a
relief valve is serviced or replaced. Each
valve must be of adequate size to protect
the refrigeration equipment.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.10
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Color Coding, Labeling, and Signage
Using a color-coding and/or a labeling system helps to ensure the facility's engineering
drawings or piping and instrumentation diagrams (P&IDs) are up-to-date and reduces
the chances of errors in the facility's operating procedures.
The RAGAGEP for labeling ammonia piping is IIAR
B114, as depicted below.
Abbreviation Physical Marker Pressure Directional
Area Slate Body Level Arrow
T T T
AMMONIA „
THE 5 COMPONENTS OF AN AMMONIA PIPE MARKER —
1. Use piping abbreviations to properly identify system components.
2. Indicate the physical state of the refrigerant (liquid, vapor, or both).
o Yellow color band indicates liquid state
o Blue color band indicates vapor state
o Use both color bands to indicate both states are present
3. Print "Ammonia" in black letters on orange background.
4. Indicate whether the internal pipe pressure is high or low.
o Red color band indicates high pressure
o Green color band indicates low pressure
5. Use arrows to indicate the direction of ammonia flow.
Facilities that lack clear and comprehensive labeling are
'accidents waiting to happen."
«
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.11
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Uniquely label all pipes, valves, and instrumentation.
Some examples include:
o Identify the king valve and all other emergency
isolation valves with large, easily identifiable
placards to be used in an emergency.
o Clearly and consistently indicate the king valve
and all other emergency isolation valves on the
P&IDs and any process flow or control logic
diagrams.
o Post ammonia placards (i.e., National Fire Protection Association 704 anhydrous
ammonia diamond) and warning signs in areas where ammonia is being used as a
refrigerant or is being stored (e.g., compressor room doors).
Anhydrous Ammonia
FIRE HAZARD
4 Below 73°F
3 Below 100°F
2 Below 200 "F
1 Above 200 °F
0 Will Not Bum
HEALTH HAZARD
4 Deadly
3 Extreme Danger
2 Hazardous
1 Slightly Hazartou
0 Normal Material
May-Detonate
Stock * Hem may Detona
2 Violent Chemical Change
1 Unstable il Heated
0 Stable
PROTECTIVE EQUIPMENT FOR HANDLING MATERIALS
Precautionary Measures:
Avoid inhalation and exposure to skin. Keep container closed. Use only with
adequate ventilation to maintain airborne concentrations below hazardous levels.
Wear appropriate gloves, goggles, and persona! protective clothing.
Emergency Overview:
Colorless gas/liquid with a strong, suffocating odor. Causes skin, eye and respiratory
tract burns. May cause blindness. Exposure to high levels may be fatal. Potential
explosion hazard in confined space. Use sufficient ventilation to prevent vapor build-
up.
First Aid Procedures:
Inhalation: Remove to fresh air. Eyes/Skin: Flush with flooding amounts of water for
at least 15 min. Ingestlon: Ingestlon of gas Is unlikely. For aqueous solutions, do not
induce vomiting. If conscious, give large amounts of water to drink. If unconscious,
do not give anything by mouth.
There are two
different NFPA
designations for
anhydrous
ammonia - one for
the machinery room
and one for all
other locations.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.12
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
CAUTION
PPE STORAGE
AREA ONLY
Distinguish and label storage cabinets
used for emergency response
equipment, supplies, and reference
materials.
Consider whether signs should be
posted in other languages in addition to
English.
3.1.2 System Operations and Maintenance
In accordance with 40 CFR 68.73, "Mechanical Integrity" procedures must be written
and implemented to maintain the ongoing integrity of process equipment. A
preventative maintenance program and schedule, based on the manufacturer's
recommendations and RAGAGEP, is part of a mechanical integrity program for each
component of a refrigeration system.
RAGAGEP for Mechanical Integrity for refrigeration systems is
IIAR 109/110
Monitor Refrigeration System Operating Parameters
Routinely monitor ammonia refrigeration system's operating state. Many facilities use
a daily engine (compressor) room log for recording the refrigeration system's various
process temperatures, volumes, vibrations, lubrication levels, and pressures at least
once per operating shift. Startup, shutdown, and pump-down operations, as well as the
results of any work or testing, should be recorded in the daily log.
Operators regularly should review these logs to watch for trends that may indicate
system problems (e.g., increasing system temperatures and pressures, decreases in oil
pressure, or releases of ammonia through PRVs). Some facilities have the chief
engineer, the plant manager, and a refrigeration technician sign the daily logs to help
initiate early, proactive problem resolution.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.13
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
During design of new systems or retrofitting of existing systems, most facilities are
using computer controls to monitor, record, and alarm process parameter conditions 24
hours per day. This does not replace essential operator duties of conducting rounds at
least daily, which includes walking the system to observe the operation and detect any
abnormalities by seeing, hearing, smelling, etc.
Equipment manufacturers and equipment operating manuals should be consulted to
develop and expand operating logs to ensure their usefulness at each facility.
RAGAGEP within an operating log recommends including a column to document
operating conditions. Record whether conditions are normal or not. If conditions are
not normal, indicate levels and trends that should be addressed through maintenance or
emergency actions.
Maintain Good Housekeeping Practices
Flammables and/or combustibles must not be stored in the machinery room. In
addition, there must be a clear and unobstructed approach and space to the machinery
for inspection, service, and emergency shutdown.
Anhydrous ammonia is very corrosive to copper,
brass, and galvanized surfaces and materials.
Do not use copper, brass, zinc,
and galvanized components in
any part of an anhydrous
ammonia refrigeration system
Support structure components should be readily
visible such that they can be inspected for
deterioration and replaced before a failure event
can occur. All refrigeration piping should be
periodically inspected for failed insulation/vapor
barrier, rust, and corrosion. Ammonia piping underneath failed insulation should be
carefully inspected for corrosion. Damaged and deteriorated ammonia piping should
be replaced. All uninsulated piping should be cleaned, primed, and painted with an
appropriate coating to protect the pipe from corrosion as well as being consistent with
the color coding scheme.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.14
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Track Ammonia Purchases and Distribution of Ammonia in Your System
Keep an accurate record of the initial amount of ammonia purchased and any additional
replacement charges of ammonia. This data is not only critical for trend and
operations analysis, but it also is necessary to determine if system-wide ammonia
releases are occurring. If your facility adds more than 10,000 pounds of ammonia in
a calendar year, you may be required to report it in accordance with 40 CFR 372 (Toxic
Release Inventory). Here is an example spreadsheet for tracking ammonia distribution
in a system:
Component/
Unit
Orientation
Diameter (ft)
Length (ft)
Volume (ft3)
Liquid Level
(%)
Temp. (°F)
Liquid (ft3)
Liquid
(Ibs/ft3)
NHs Liquid
(Ibs)
Vapor (ft3)
Vapor
(Ibs/ft3)
NHs Vapor
(Ibs)
Total NHs
(Ibs)
HP NHs
Receiver
V-1
Horizontal
3.50
18
165.44
35.71%
95
59.09
36.67
2,167
106.35
0.6517
69
2,236
Pilot
Receiver V-2
Horizontal
1.67
10.75
23.45
93.02%
95
21.82
36.67
800
1.64
0.6517
1
801
Low
Temperature
Suction Trap
V-3
Vertical
4.00
8.5
102.04
11.76%
-31
12.00
42.69
512
90.04
0.05134
5
517
Intercooler
V-4
Horizontal
4.00
8.0
100.53
22.92%
17
23.04
40.57
935
77.49
0.159
12
947
Accumulator
for #1 V-5
Horizontal
3.00
14.83
104.83
44.44%
17
46.60
40.57
1,891
58.25
0.159
9
1,900
Recirculator
Vessel V-6
Horizontal
4.00
12.33
154.98
56.25%
-31
87.18
42.69
3,722
67.80
0.05134
3
3,725
If you need assistance in determining how much ammonia is in your refrigeration
system, the Industrial Refrigeration Consortium, having a collaborative effort between
the University of Wisconsin Madison and industry, has made tools available for
calculating the inventory of pressure vessels and heat
exchangers, http://www.irc.wisc.edu/?/download.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.15
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Piping and Instrumentation Diagrams
Facilities must maintain complete and accurate piping and instrumentation diagrams
(P&IDs) of the ammonia refrigeration system and the equipment manufacturer's
documentation. A P&ID is a set of drawings or detailed schematics that illustrate all
components (e.g., vessels, valves, pumps, and piping) of the refrigeration system.
Operating procedures, operation and maintenance checklists, daily logs, facility
management plan, and emergency response materials should all relate to the
information found in the manufacturer's documentation and on the facility's P&IDs.
Unfortunately, many
facilities have P&IDs
that lack critical
elements, or do not
represent the currently
installed configuration
and system
components. These
defects cause operating
errors, delay efforts to
minimize an ammonia
release, and further
increase the risks to
emergency responders.
Many facilities find that P&ID verification coupled with a line-and-
valve-labeling project is a very cost effective housekeeping project.
P&IDs periodically should be verified by tracing ammonia equipment throughout a
facility. Construction changes, system renovations and repairs, and draftsman errors
all contribute to inaccuracies in P&IDs. Ladder/logic diagrams should be prepared
from the verified P&IDs and electrical drawings for all system components.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.16
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Conduct a Periodic Process Hazard Analysis
A Process Hazard Analysis (PHA) is used to identify, evaluate, and control hazards that
exist within the facility. These hazards have the potential to lead to the release of
ammonia with the further prospect of causing on-site injury, infrastructure damage, or
offsite consequences. Routinely performing a PHA will help minimize releases, helps
facility prioritize resources, and provides a forum for ammonia system operators to
share critical operating knowledge.
A PHA is required every five (5) years or sooner if the facility incurs a major change
[40 CFR 68.67(f) and 29 CFR 1910.119]. A well-designed PHA aims to identify all
hazards that could lead to significant ammonia exposure of workers, the public, or the
environment. It also establishes dates for resolving recommendations and assigns
personnel to complete each recommendation. The facility must keep all PHAs for the
life of the process. Here's an example worksheet:
What if
Drain valve
open/leaking
on lowest
vessel
Manual valve
closed in
pump
discharge line
Pump stops
(due to
mechanical
failure or low
level switch)
Oil lubrication
system fails
Excessive
vibration of
compressor or
pumps
Hazard
Potential
release of
ammonia
from leak
point
Potential for
high pump
discharge
pressures
Loss of
ammonia
flow to
evaporators
Ammonia
discharge
temperatures
increase
Damage to
compressor
or pumps
Consequences
Significant
volume of
ammonia
release into
engine room
Over
pressurize
system, which
could lead to
ammonia
release in
engine room
No safety or
environmental
consequences
(operation
issue)
Compressor
bearings or
seals could be
damaged
Potential for
catastrophic
ammonia leak
Safeguards
Log vessel operating
parameters every 4
hours. Ammonia
alarm starts ventilation
fans.
Pressure regulator
(vented back to ultra-
low vessel) is in pump
discharge line. Logs
of pressure every 4
hours.
Preventative
maintenance program
and operator attention
during ammonia
system operations.
Compressor parameters
and oil pressure logged
every 4 hours.
Compressors equipped
with low oil pressure
alarms and cutouts.
Ammonia detector in
engine room will alarm
and start ventilation
fans at 100 ppm set
point
Recommendations
Ensure operator
monthly checks that
caps and plugs are
placed on system and
protected from damage
Consider providing a
PRV on the discharge
of pump
No recommendations
No recommendations
Consider conducting
quarterly vibration
analysis of the
compressors and
pumps.
Target and
Actual dates
for completion
First check on
July 15, 2015
September 23,
2015
N/A
N/A
First analysis
on August 1,
2015
Completed
By
John Smith
Jane Doe
N/A
N/A
Charlie
Brown
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.17
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
3.1.3 System Inspections
Conducting inspections is one of the system operator's most valuable tools for
preventing unnecessary accidents due to equipment failure.
Conduct Visual Testing
Visual inspections are relatively
inexpensive and provide a great deal
of valuable information to the
system operator. To monitor the
condition of the ammonia
refrigeration system, the person
inspecting the system should note
any corrosion of piping, valves,
seals, flanges, and other pertinent
equipment. In addition, the
insulation should be visually
inspected for breeches in its integrity. The person conducting the visual test should
keep a log, including photographs, of all findings. Taking corrective action of all
findings is essential to avoid unexpected equipment failure.
Conduct Leak Testing
All ammonia refrigeration system operators should try to maintain a leak-free ammonia
system. Recommended practice involves leak
testing all piping, valves, seals, flanges, and
other pertinent equipment at least four times a
year. Some methods that can be used for leak
testing are sulfur sticks, litmus paper, or a
portable meter equipped with a flexible probe.
Operators, maintenance personnel, and other
facility workers should be encouraged to
immediately report ammonia odors
Facilities should immediately investigate all
reports of ammonia leaks, and take corrective
actions without delay.
^ f MI
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.18
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Conduct Vibration Testing
Depending on the nature of equipment at the site, some facility operators may elect to
perform vibration testing on rotating equipment (i.e., compressors and pumps). These
usually are performed to supplement the maintenance practices to indicate when
equipment overhauls should be performed. Vibration levels on certain equipment can
be logged and analyzed to determine if abnormal trends are developing or if further
inspections are warranted. Excessive vibration can lead to potential equipment
damage which could increase the probability of an ammonia release. The equipment
manufacturer should be consulted to provide guidance on the usefulness of vibration
monitoring for their particular equipment.
Conduct Thermal Imaging
A growing trend in preventive maintenance is the use of
infrared (thermal) imaging. Infrared thermography helps locate
many problems in their early stages often before they can be
seen or found in any other way. A temperature difference,
usually an abnormal hot spot, is typically associated with these
problems due to high electrical resistance or excessive friction.
3.1.4 Training
Only fully trained and qualified operators are permitted to operate ammonia systems.
Training is available through a number of trade organizations and professional
societies. Some organizations that provide ammonia refrigeration education and
training are listed in Appendix D, "Education and Information Resources".
In accordance with 40 CFR 68.71, the owner or operator of your facility must provide
initial training to each employee presently operating a process BEFORE they are
involved with newly assigned process. They must also be trained in an overview of the
process and in the operating procedures. The operator is required to take refresher
training at least every 3 years to ensure the employee understands and adheres to the
current operating procedures related to the process. In addition, after a major change
in operations, the operator is required to be trained in any updated or new procedures
prior to startup. For Program 3 facilities, the owner or operator must record the
operator's identity, date of training and the method used to verify the operator
understood the training.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.19
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Facilities should also provide
awareness training to other facility
personnel who work within ammonia
refrigerated areas. Awareness
training of the hazards associated
with ammonia accidents should be
conducted in a manner that
encourages immediate reporting of
ammonia system damage and
releases. Immediate awareness of a
problem, or potential problem, can
help ammonia operators quickly
minimize and control any accidental
releases as well as get employees to
a safe location should a release
occur.
3.2 Property Security
Many accidents can be prevented by taking proper site safety precautions. Ammonia
theft and vandalism have resulted in death, injuries, property damage, and chemical
releases from ammonia storage facilities and refrigeration systems.
The following site security should be considered at existing facilities as well as at new
sites. Some of these recommendations will depend on the type and size of your facility.
Appurtenances containing anhydrous ammonia that are readily accessible to the general
public tend to provide the most serious security risk.
o First and foremost, determine if your facility is subject to the Department of
Homeland Security Risk-Based Performance Standards. See pages 2.3 - 2.4 of this
manual.
o Educate employees about potential theft and problems. You may find more
information about preventing ammonia theft at
http ://www2. epa.gov/sites/production/files/2013-11 /documents/csalert.pdf.
o Ensure that all outside ammonia vessels and storage areas are well lit.
o Know ammonia inventory to quickly identify missing quantities.
o Visually inspect all outside vessels and cylinders each morning (especially after
weekends or other periods when the facility has been unoccupied).
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.20
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
o Consider setting up a valve protection program for critical valves that would cause a
significant release if opened by mistake. For example, install a check valve in the
ammonia charging line close to the main control valve. In addition, evaluate the
benefits of installing lockable, quarter-turn ball or globe valves, or spring-loaded
ball or globe valves in series with a manual valve in critical areas (e.g., ammonia
supply connection).
o Consider installing valve locks, fencing,
bollards, or other barriers especially for
unattended outside vessels or cylinders.
o Consider installing other theft deterrent
measures such as bilingual or multilingual
warning signs, walls, motion detector lights,
motion detector alarms, security patrols, and/or
video surveillance.
o Report thefts, signs of tampering, leaks, or any
unusual activity to local law enforcement
officials.
o For more information on site security, please
visit http://www2.epa.gov/sites/production/files/2013-ll/documents/secale.pdf.
To assist in developing your Safety and Security Plans, you may want to look at the
standards and recommended practices from other organizations. Listed below is a partial
list of some resources that can provide information for developing security procedures or
practices.
o Standard for Site Security Services for Fire Loss Prevention, National Fire
Protection Assoc. (NFPA) - 601.
o Responsible Care Employee Health and Safety Code Site Security Management
Practice, Chemical Manufacturers Association.
o The Agency for Toxic Substances and Disease Registry www.atsdr.cdc.gov
provides a 10-step procedure to analyze, mitigate, and prevent public health hazards
resulting from terrorism involving industrial chemicals.
o The American Society for Industrial Security www.securitymanagement.com
develops educational programs and materials that address security concerns,
including an online version of its magazine.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.21
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
o The Center for Chemical Process Safety (www.aiche.org/ccps) develops
engineering and management practices to prevent and mitigate consequences of
catastrophic events involving chemical releases.
o The National Safety Council (www.nsc.org) provides general safety information on
chemical and environmental issues.
o The Energy Security Council (www.energysecuritycouncil.org) is a national
industry association that assists law enforcement agencies and energy companies in
combating all types of criminal activity.
3.3 Other RAGAGEP
In addition to the recognized and generally accepted good engineering practices
"RAGAGEP" described earlier in this chapter, there are many other useful resources:
American Society of Mechanical Engineers (ASME)
ASME Boiler & Pressure Vessel Code Section VIII
"Rules for Construction of Pressure Vessels" Division 1
provides requirements applicable to the design,
fabrication, inspection, testing, and certification of
pressure vessels operating at either internal or external
pressures exceeding 15 psig.
ASME BOILER &
PflESSUREVESSEL
ASME B31.5-2013 "Refrigeration Piping and Heat
Transfer Components" contains requirements for the
materials, design, fabrication, assembly, erection, test, and
inspection of refrigerant, heat transfer components, and
secondary coolant piping for temperatures as low as
-320°F, whether erected on the premises or factory
assembled.
ASME Section IX "Welding and Brazing Qualifications"
including welding procedure qualifications, welding performance qualifications, standard
welding procedure specifications, and brazing qualifications.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.22
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
American Society of Heating Refrigerating and Air-Conditioning
Engineers (ASHRAE)
ASHRAE Standard 15-2013 "Safety Standard
for Refrigeration Systems" clarifies location
requirements for machinery room mechanical
ventilation, harmonizes Standard 15 with the 2012
International Mechanical Code (IMC) section
1101.10.
ASHRAE Standard 34-2013 "Designation and
Classification of Refrigerants" clarifies and
modifies definitions; adds one new single-
compound refrigerant and 14 new refrigerant
blends; clarifies section 7.3, Requirements for
Data Calculations, and 9.6, Toxicity Information,
for consistency; changes the flammability safety
classification of refrigerants 32, 143a, 717 and
1234yf from Class 2 to Class 2L based on the
optional burning velocity measurement; modifies the definition of Workplace
Environmental Exposure Level (WEEL) and adds a reference to the American Industrial
Hygiene Association (AIHA) WEEL; clarifies the conditions for bubble point in Sections
B2.4.1 and B2.4.2 of Normative Appendix B.2, Fractionation Analysis; and better defines
experimental verification of models used to identify the worst case of fractionation for
flammability (WCFF) compositions, and allows vapor liquid equilibrium (VLE) data
only to be used for experimental verification
Safety Standard for
Refrigeration Systems
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.23
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Factory Mutual Global Property Loss Prevention Data Sheet 12-61;
Pressure Vessels, Mechanical
Refrigeration (May 2002)
This data sheet applies to mechanical (compression
type) refrigeration systems found in food
processing and storage, chemical processes,
biomedical applications and office buildings.
This data sheet provides loss prevention
recommendations, support for those
recommendations and inspection guidelines.
These recommendations are intended to
supplement, not supersede, those of the equipment
manufacturers and/or jurisdictional authorities.
International Institute of Ammonia Refrigeration (IIAR)
ANSI/IIAR Standard 1-2012 "American National Standard for Definitions and
Terminology Used in IIAR Standards" provides a unified set of definitions for use in the
IIAR Standards. All IIAR standards may be found at
http://www.iiar.org/iiar/WCM/Store/StandardsAVCM/IIAR Publications/Standards.aspx.
ANSI/IIAR 2-2008 (Addendum B) "American
National Standard for Equipment, Design and
Installation of Closed-Circuit Ammonia Mechanical
Refrigerating Systems" has been written to serve as a
standard for equipment, design and installation of
closed-circuit ammonia refrigeration systems.
ANSI/IIAR Standard 3-2012 "American
National Standard for Ammonia Refrigeration Valves"
specifies criteria for materials, design parameters,
marking and testing of valves and strainers used in
closed circuit ammonia refrigeration systems.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.24
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
ANSI/IIAR Standard 4-2015 "Installation of
Closed-Circuit Ammonia Refrigeration Systems"
serves as a standard for the installation of closed-
circuit ammonia mechanical refrigeration systems
and overpressure protection relief piping systems.
ANSI/IIAR Standard 5-2013 "Start-up
and Commissioning of Closed-Circuit
Ammonia Refrigeration Systems" specifies criteria
and procedures of the startup and commissioning of
closed-circuit ammonia mechanical refrigeration
systems.
ANSI/IIAR Standard 7-2013 "Developing Operating Procedures for Closed-Circuit
Ammonia Mechanical Refrigerating Systems" defines the minimum requirements
for developing operating procedures for closed-circuit ammonia mechanical refrigerating
systems.
ANSI/IIAR Standard 8-2015 "Decommissioning of
Closed-Circuit Ammonia Refrigeration Systems"
specifies the minimum criteria for removing the ammonia
charge in conjunction with the decommissioning of
closed-circuit ammonia refrigeration systems.
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.25
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
IIAR Bulletins
• IIAR Bulletins may be found at
http://www.iiar.org/iiar/WCM/Store/BulletinsAVCM/IIAR Publications/Bulletins.
aspx?hkev=edfd 13 Oe-9f5 8-43 c9-979a-1 f 18dc8c8a9a.
IIAR BIOS "Water Contamination in
Ammonia Refrigeration Systems"
IIAR B109 "Minimum Safety Criteria for a
Safe Ammonia Refrigeration System"
IIAR B110 "Start-up, Inspection and
Maintenance of Ammonia Mechanical
Refrigerating Systems"
Bulletin No. 109
Guidelines for:
IIAR Minimum
Safety Criteria for
a Safe Ammonia
Refrigeration
System
IIAR B114 "Identification of Ammonia Refrigeration Piping and System
Components"
IIAR B116 "Avoiding Component Failure in Industrial Refrigeration Systems
Caused by Abnormal Pressure or Shock"
CHAPTER 3 - PREVENTING ACCIDENTS
Page 3.26
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
CHAPTER 4 - WHAT TO DO WHEN THERE IS AN ACCIDENT
4.1 Be Prepared
Not knowing how to respond in an emergency often makes the situation worse. It is
important to develop a suitable plan for emergency response, meet the local emergency
responders, and to practice your plan.
Facilities whose
employees do not
respond to chemical
emergencies, would
merely take steps to
safely shut down the
process and evacuate
personnel. This
would not include
donning PPE.
These facilities are
also required to
develop an
emergency action
plan in accordance
with OSHA
regulations. Your
facility is required to
be included in the ^^^^^^^^^^^^^^^_^^^^^^^^^^^^^^^_
community
emergency response plan and facility personnel are required to know who to contact if
there is an emergency.
If your employees will be responding to an anhydrous ammonia emergency, then you are
required to have an EPA emergency response program and plan in accordance with 40
CFR 68.95. Many responding facilities may also be subject to OSHA's Hazardous
Waste Operations and Emergency Response (HAZWOPER) Standard (29 CFR
1910.120). For further guidance on actions a responding facility would take, please see
Appendix B.I of this manual.
Plan ahead by meeting your local emergency
responders before an emergency occurs.
CHAPTER 4 - WHAT TO DO WHEN THERE IS AN ACCIDENT
Page 4.1
-------
Emergency
Response
Plan
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
The risk management emergency response program requires the following elements:
o An emergency response plan. Your
emergency response plan must be specific to
the operations and layout of your facility and
must be maintained and kept at your facility.
Each emergency response plan is to include:
-S Procedures for informing the public and
local emergency response agencies about
accidental releases.
S Documentation of proper first-aid and emergency medical treatment for
accidental human exposure.
S Procedures and measures for emergency response after an accidental
release.
o Procedures for using and maintaining emergency response equipment.
o Training for employees in their emergency responsibilities.
o Procedures to review and update the emergency response plan.
For more detailed information on EPA's emergency response program,
see Chapter 8 - Emergency Response Program of the EPA "General
Risk Management Program Guidance".
http://www2.epa.sov/rmp/suidance-facilities-risk-manasement-
prosrams-rmpttseneral
4.2 Report the Accident
No matter how well you implement best practices, planning, and security, accidents still
may happen. Having a well-rehearsed emergency response/action plan in place will help
alleviate much of the stress if an accident occurs.
When an accident does occur, it is essential that you notify the appropriate authorities
immediately so they can initiate a response if necessary to insure the protection of the
public and the environment. Most companies will post a list of who to call to respond to
an emergency and a list of who to call to report an emergency.
CHAPTER 4 - WHAT TO DO WHEN THERE IS AN ACCIDENT
Page 4.2
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Notification, reporting, and response requirements are summarized in the following table.
The first notification should be made to the local responders, since they are needed
immediately*. The next notification should be made to the state, followed by the
National Response Center.
Subject
EPCRA Release Notification
(> 100 pounds of anhydrous
ammonia)
CERCLA Release Notification
(> 100 pounds of anhydrous
ammonia)
&
Clean Water Act Release
Notification
(> 100 pounds of anhydrous
ammonia over a 24-hour period
that enter "waters of the U.S.")
Risk Management Program
Release Notification
(No threshold quantity. Any
quantity that causes a
"reportable accident"**)
Notification of Slug Loading to
POTW
Notification of Hazardous Waste
Discharge to Septic System
State Statutes
Law and
Regulation
EPCRA
40 CFR 355
CERCLA
40 CFR 300 and
302
&
Clean Water Act
40 CFR 117
Clean Air Act
112(r)(7)
Clean Water Act
40 CFR 403
Clean Water Act
40 CFR 144
State Laws
Who to Notify
Local Emergency Planning
Committee (LEPC)
State Emergency Response
Commission (SERC)
National Response Center
1-800-424-8802
Update Risk Management
Plan
POTW, State Hazardous
Waste Authority, EPA
Regional Waste Management
Division Director
EPA Regional Underground
Injection Control (UIC) Well
Program, and state UIC
Program
State Environmental Agency
When
Immediately*
Immediately*
Within six (6)
months of
accident.
Immediately*
Immediately*
Varies
* "Immediately" is interpreted as "not to exceed 15 minutes after the person in charge has knowledge of
the release." This interpretation is documented in A Legislative History of the Superfund Amendments
and Reauthorization Act of 1986. Volume 2. October 1990.
* * "Reportable Accident" - an accident is reportable in the Risk Management Program if the chemical release
causes: On-site deaths, injuries, or significant property damage; or Off-site deaths, injuries, property
damage, environmental damage, evacuations, or sheltering in place.
CHAPTER 4 - WHAT TO DO WHEN THERE IS AN ACCIDENT
Page 4.3
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Immediate Accident Reporting
In accordance with 40 CFR 355.40,
a facility is to immediately report ammonia
releases producing potential offsite exposure
exceeding 100 pounds to all Local Emergency
Planning Committee (LEPCs) and State
Emergency Response Commission (SERCs) of
the area likely to be affected. The release
report is to include:
o Chemical name or identity of all
substances involved in the accident;
o Time and duration of release; and
o Estimate of quantity of substances
released to the environment.
hemical name or
identity of all substance
involved in the accident
Time and duration of
release.
Estimate of quantity of
substances released to
the environment;
Initial notifications of a release can be made by
telephone, radio, or in person. In accordance with
40 CFR 302.6(a), a facility is to immediately report
releases > 100 pounds of ammonia to the National
Response Center at (800) 424-8802.
Reporting should include the following:
o Chemical name or identity of the released substance;
o Indication of whether the substance is on the CERCLA Section 302(a) list;
o Estimated quantity of release;
o Time and duration of release;
o Medium or media into which the release occurred; and
o Whether release threatens waterways (reporting requirement of the Clean Water
Act contained in 40 CFR 117.21).
CHAPTER 4 - WHAT TO DO WHEN THERE IS AN ACCIDENT
Page 4.4
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
The facility owner or operator also is
required to provide a written Follow-up
Emergency Notice as soon as possible
(and within 30 calendar days) to their
LEPC and SERC after a release that
requires notification.
The written follow-up notice should include the following:
o An update of all previously provided information;
o Actions taken to respond to the release;
o Known or anticipated acute or chronic health risks associated with a release; and
o Advice regarding medical attention necessary for exposed individuals.
4.3 Investigations
An incident investigation is a requirement of EPA's Risk Management Program, as
contained in 40 CFR 68.60 and 68.81. (Note that these requirements are nearly identical
to those under OSHA's Process Safety Management.)
For processes categorized as a Program 2
or Program 3 process, each incident that
results in (or could reasonably have
resulted in) a catastrophic release must be
investigated. The resulting investigation
report should include the following
information:
o Date of incident;
o Date investigation began
(< 48 hours after the incident);
o Description of incident;
o Factors that contributed to incident; and
o Recommendations resulting from the investigation.
CHAPTER 4 - WHAT TO DO WHEN THERE IS AN ACCIDENT
Page 4.5
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
I •
' ~~ ^r —
The goal of an accident investigation is to
determine the root causes or management system
failures that ultimately caused the ammonia
release. Efforts to determine the facts, conditions,
circumstances, and probable causes of ammonia
,.~~ releases can help to reduce the likelihood of their
recurrence. They also can minimize the
consequences associated with future releases and
make anhydrous ammonia refrigeration systems
and operations safer for everyone.
Section 112(r)(6) of the Clean Air Act established an independent safety board known as
the Chemical Safety and Hazard Investigation Board (the "Chemical Safety Board").
One of the objectives of the Chemical Safety Board is to investigate, determine, and
report the facts, conditions, circumstances, and probable causes of an accidental release
that results in a fatality, serious injury, or substantial property damage.
The Chemical Safety Board investigates chemical accidents.
Visit their page at http://www. csb. sov/.
CHAPTER 4 - WHAT TO DO WHEN THERE IS AN ACCIDENT
Page 4.6
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
APPENDIX A - CLEAN AIR ACT (CAA)
PREVENTION PROGRAM REQUIREMENTS
This appendix highlights the basic CAA 112(r) Risk Management Program requirements. For a
detailed description of all requirements under this program, please visit:
http://www2.epa.gov/rmp/guidance-facilities-risk-management-programs-rmp
A.1 Risk Management Program Level
Most ammonia refrigeration processes are Program 3, because they are covered by
OSHA Process Safety Management (PSM) standard codified at 29 CFR 1910.119 and
their worst case scenario has public receptors in the circle of influence, which means it's
not eligible for Program 1.
For detailed information on determining Program level, visit:
http://www2.epa.gov/sites/production/files/2013-10/documents/chap-02-final.pdf
A.2 Program 3 Requirements
Since most ammonia refrigeration facilities are Program 3, they are subject to the
following requirements:
• Management System
• Hazard Assessment
• Prevention Program
• Emergency Response
• Risk Management Plan
A.2.1 MANAGEMENT SYSTEM
A written Management System is a document which specifies who is responsible for
implementing each of the requirements of their Risk Management Program. In
accordance with 40 CFR 68.15, the management system is to include the following:
o Develop a management system to oversee implementation of the risk management
program elements;
o Designate a qualified person or position with the overall responsibility of
developing, implementing, and ensuring integration of the Risk Management
Program elements; and
APPENDIX A - CLEAN AIR ACT PREVENTION PROGRAM REQUIREMENTS
Page A. 1
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
o Document names of people or positions and define lines of authority through an
organizational chart or other similar document.
A.2.2 HAZARD ASSESSMENT
A Hazard Assessment must include an offsite consequence analysis (OCA) for each
covered process as follows:
o For worst-case and alternative release scenarios, potential exposures to human
populations must be quantified and potential environmental damage must be
identified;
o In accordance with 40 CFR 68.36, revised analyses and a revised Risk Management
Plan is required within six months of changes in processes or any changes that
increase or decrease the distance to an endpoint by a factor of two or more; and
o Worst-case and alternative release scenarios must be reviewed and updated at least
once every five years.
Although not required, many facilities provide an accurate map showing these
scenario distances to the Local Emergency Planning Committee (LEPC) for their
planning purposes. For free tools and more information on developing an OCA,
please visit http://www2.epa.gov/rmp/rmpcomp.
A.2.3 PREVENTION PROGRAM
The Prevention Program is the foundation of the Risk Management Program.
The Program 3 prevention program includes each of the following requirements:
Section
68.65
68.67
68.69
68.71
68.73
68.75
Program 3
Process Safety Information
Processes Hazard Analysis
Operating Procedures
Training
Mechanical Integrity
Management of Change
Section
68.77
68.79
68.81
68.83
68.85
68.87
Program 3
Pre-Startup Review
Compliance Audits
Incident Investigation
Employee Participation
Hot Work Permit
Contractors
APPENDIX A - CLEAN AIR ACT PREVENTION PROGRAM REQUIREMENTS
Page A.2
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Ammonia refrigeration facilities are also subject to OSHA's PSM standards. Many of
OSHA's PSM requirements are very similar to the EPA Risk Management Program
requirements as demonstrated in the following table:
Risk Management Plan (EPA)
Process Safety Management (OSHA)
Process safety information
Process Hazard Analysis
Operating Procedures
Employee participation
Training
Contractors
Pre-Startup Safety Review
Mechanical Integrity
Hot Work permit
Management of Change
Incident Investigation
Emergency Planning and Response
Compliance Audits
Trade Secret
(No equivalence)
Process safety information
Hazard evaluation
Standard operating procedures
(No equivalence)
Training
(No equivalence)
Pre-start up review
Maintenance
(No equivalence)
Management of change
Accident investigations
Emergency response
Safety audits
(No equivalence)
Risk assessment
A.2.4 EMERGENCY RESPONSE
A facility has the option to respond to their own emergencies or not. If facility
employees will not be responding to an accidental release they must meet the
requirements of [40 CFR 68.90(b)] and have an OSHA emergency action plan in place.
If the facility employees will be responding to the emergency, they must meet the
requirements of the EPA emergency response program (40 CFR 68.95).
For more information on emergency response,
see Appendix B.
APPENDIX A - CLEAN AIR ACT PREVENTION PROGRAM REQUIREMENTS
Page A.3
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
A.2.5 RISK MANAGEMENT PLAN
A Risk Management Plan (RMP) is a document which reflects the status of a facility's
Risk Management Program. In addition to including a summary of general facility
information, the hazard assessment, the prevention program, and the emergency response
program, the RMP includes an executive summary. Guidance on preparing and
electronically submitting an RMP may be found at http://www2.epa.gov/rmp.
Executive Summary
The RMP requires an Executive Summary including a description of the following six
(6) elements:
• The facility's accidental release prevention and emergency response policies;
• The facility and the regulated substances;
• The general accidental release prevention program and chemical-specific
prevention steps;
• The five-year accident history;
• The emergency response program; and
• Planned changes to improve safety.
Five-year accident history
One of the elements that is often overlooked, not reported correctly, or not reported
timely is the five-year accident history. In accordance with 40 CFR 68.42 and
68.168, a five-year accident history must be completed and included within a
facility's RMP if the release caused at least one of the following consequences:
o On-site deaths, injuries, or significant property damage; or
o Known off-site deaths, injuries, property damage, environmental damage,
evacuations, or sheltering in place.
There is no reportable quantity for this reporting requirement. If any amount of the
regulated substance causes any of the above consequences, then the facility's RMP
must be corrected to add a reportable accident within six (6) months of its
occurrence.
APPENDIX A - CLEAN AIR ACT PREVENTION PROGRAM REQUIREMENTS
Page A.4
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
RMP Corrections and Updates
In accordance with 40 CFR 68.190, a facility is required to electronically update
their RMP:
o At least every five (5) years from the date of the initial submission;
o No later than the date a regulated substance is present at or above the
threshold quantity;
o Within six (6) months of a change that requires a revised off-site consequence
analysis;
o Within six (6) months of a change that requires a revised PHA or hazard
review;
o Within six (6) months of a change that results in a change in program level of
a covered process.
RMPs must be revised and resubmitted at
least once every Jive years.
A facility must electronically correct its RMP within one (1) month of a change of
the emergency contact information and within six (6) months of a reportable
accident.
A.3 Compliance
EPA conducts inspections at facilities to determine if the facility is in compliance with
the requirements of the Risk Management Program. Typical examples of preliminary
determinations found during EPA inspections include:
o Mount NFPA placards on doors to compressor
rooms and condenser/receiver areas;
o Install bollards at ammonia fill station to improve
protection against vehicular traffic;
o Physically protect coils, valves, and pipes against
fork lifts;
APPENDIX A - CLEAN AIR ACT PREVENTION PROGRAM REQUIREMENTS
Page A. 5
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
o Identify and correct corrosion on ammonia vessels, piping, and structural supports;
o Retest, calibrate, and replace ammonia sensors found inoperable;
o Stock spill booms (specific for ammonia) to limit flow of released ammonia;
o Perform vibration testing and trend analysis on all motor/compressors every six (6)
months;
o Replace pressure safety valves after they have been activated or every 5 years,
whichever comes first;
o Install check valves in charging line; and
o Add audible or strobe alarms tied into ammonia sensors to improve notification to
workers.
A.4 Deregistration
A facility which is no longer covered under the Risk Management Program, must submit
a "de-registration" to EPA within six (6) months of not being subject in accordance with
the provisions of 40 CFR 68.190(c).
APPENDIX A - CLEAN AIR ACT PREVENTION PROGRAM REQUIREMENTS
Page A.6
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
APPENDIX B - EMERGENCY PLANNING
B.I Emergency Response Planning
Effective emergency response planning is proactive and ongoing. EPA interprets
"response" to be consistent with OSHA's Hazardous Waste Operations and Emergency
Response (HAZWOPER) Standard (29 CFR 1910.120). OSHA defines emergency
response as, "a response effort by employees from outside the immediate release area or
by other designatedresponders...to an occurrence which results, or is likely to result, in
an uncontrolled release of a hazardous substance''
An OSHA emergency action plan (EAP) is a written document required by 29 CFR
1910.38(a). The purpose of an EAP is to facilitate and organize employer and employee
actions during workplace emergencies.
An EPA Risk Management Program Emergency Response Plan (ERP) outlines the action
and equipment necessary for effective proactive emergency response in accordance with
40 CFR Subpart E, "Emergency Response" as it relates to the regulated substance.
A facility may have one plan as long as it
meets all of the OSHA and EPA emergency
plan requirements. For more information,
visit
http://www.epa.sov/resionl/enforcement/epc
ra/onevlan.html
All facilities are required to have mechanisms in place
to notify emergency responders when there is a release.
Any facility whose employees will not respond to
accidental releases are not required to develop and
implement an EPA ERP. In accordance with 40 CFR
68.90, these facilities have the responsibility to contact
the Local Emergency Planning Committees LEPC(s) which may be affected by a release
of a toxic substance to ensure the facility is included in the community emergency
response plan. In addition, facilities are required to coordinate with the local fire
department concerning a potential release of their flammable substances.
APPENDIX B - EMERGENCY PLANNING
Page B.I
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Any spill of anhydrous ammonia, regardless of quantity, will require a "response" effort
due to immediate ammonia volatilization, the hazardous nature of ammonia gas
dispersing into the environment, and human health risks to on-site and off-site people.
B.2 Emergency Response Program
Any facility whose employees will respond to an accidental release is required to develop
and implement an EPA Emergency Response Program in accordance with 40 CFR 68.95.
The Emergency Response Program includes, at a minimum:
1. An Emergency Response Plan
2. Procedures for the use of emergency response equipment and for its inspection,
testing, and maintenance
3. Training for all employees in relevant procedures
4. Procedures to review and update, as appropriate, the emergency response plan to
reflect changes at the stationary source and ensure that employees are informed of
changes
B.2.1 EMERGENCY RESPONSE PLAN (ERP)
The ERP must contain, at a minimum:
• Public Communication Plan;
• Emergency Medical Treatment; and
• Emergency Response Procedures.
o Public Communication Plan
The ERP must contain procedures for informing the public and local emergency
response agencies about accidental releases. Facilities should get to know their local
emergency planners and responders in order to develop an effective communication
plan. At a minimum, this should involve the LEPC and local Fire Department.
o Emergency Medical Treatment
The ERP must include a procedure to document proper first-aid and emergency
medical treatment necessary to treat accidental human exposures.
APPENDIX B - EMERGENCY PLANNING
Page B.2
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
o Emergency Response Procedures
The ERP must contain procedures and measures for emergency response after an
accidental release of a regulated substance. Some of these procedures and measures
may include:
* Emergency Contact Information
Prepare an easily accessible list of Emergency contact information including, at a
minimum:
• The National Response Center
• State Emergency Response National Response Center
Commission 800-424-8802
• LEPC
• Local Emergency Responders
Company Emergency Contact
The National Response Center (NRC) is the sole Federal point of contact for
reporting chemical spills/releases, including anhydrous ammonia.
Your State Emergency Response Commission (SERC) and your LEPC play
extremely important roles in Emergency Response Planning. For planning
purposes and in accordance with 40 CFR 355.20, facilities that use or store
more than 500 pounds of anhydrous ammonia are required to notify the
SERC and LEPC. These facilities must appoint a liaison from the facility and
work with the LEPC to include facility-specific emergency response information
into the comprehensive emergency response plan.
* Identify Chain of Command
An ERP should clearly define chain of command responsibilities in an event.
The plan should indicate how response functions change if an emergency occurs
as the result of a known or suspected terrorist event. For example, an Incident
Command System will likely transition to a Unified Command structure. The
change in response leadership is typically necessary to accommodate emergency
response efforts that involve mutual-aid partners, State, and Federal responders.
APPENDIX B - EMERGENCY PLANNING
Page B.3
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
* Mitigation Procedures
Procedures included in an ERP should involve mitigation activities to protect
workers and the public from further exposure to hazards. In general, public
health officials, EMS personnel, and criminal investigators should work together
to identify and mitigate hazards following an event. The ERP could include a list
of basic questions to ask victims, impacted emergency responders, and other
individuals in the affected population.
Active and passive mitigation systems should be considered. Passive mitigation
means equipment, devices, or technology that function without human,
mechanical, or other energy input. Examples of passive mitigation include dikes
and enclosed systems. Active mitigation means equipment, devices, or
technologies that need human, mechanical, or other energy input to function.
Examples of active mitigation include interlocks, shutdown systems, pressure-
relieving devices, flares, emergency isolation systems, and fire protection
systems.
A fire protection system is an example of
Active Mitigation
The system design, location, operating procedures, and
emergency response procedures should be taken into
consideration when determining the mitigation system to use. The design of the
mitigation system should consider the different factors that would influence the
system operation and potential release scenarios.
* Establish Emergency Shutdown Procedures
The ERP should establish emergency shutdown procedures and instructions on
what to do during and after a power failure.
APPENDIX B - EMERGENCY PLANNING
Page B.4
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
B.2.2 EMERGENCY RESPONSE EQUIPMENT
The Emergency Response Program must include procedures for
inspecting, testing, and maintaining emergency response
equipment. Emergency equipment should be inspected and tested
regularly to ensure respirators and other equipment are maintained,
available, and accessible. Air-purifying respirators must have
appropriate and unexpired cartridges. They must only be used in
an ammonia atmosphere less than 300 ppm. Self-contained
breathing apparatus (SCBA) air should be suitable for the
temperature in which the SCBA will be worn. Facilities should
also periodically verify that onsite response personnel are trained
and fit tested for the proper use of the emergency equipment.
^
B.2.3 TRAIN ALL EMPLOYEES
The Emergency Response Program must provide training to all employees in relevant
emergency response procedures.
B.2.4 REVIEW AND UPDATE ERP
The Emergency Response Program must include procedures for updating the emergency
response plan when relevant changes are made at the facility and to ensure that
employees are informed of changes.
B.3 Practice Your Plan
Response actions during the first few
minutes of an ammonia release are the
most critical. They should not only
be planned, but also well-rehearsed to
minimize the impact of a release.
Facilities that take a comprehensive
approach in developing a facility-
specific emergency response program
are better prepared to respond in a
release event.
APPENDIX B - EMERGENCY PLANNING
Page B.5
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
A facility must conduct training, evaluate its program,
maintain emergency equipment, and regularly coordinate
with local agencies in order for an EAP/ERP to be useful in
an emergency.
Include Local Emergency Medical Service (EMS) Personnel in your Planning and
Practice
In an emergency, an integrated EMS response is critical. People seriously injured by a
hazardous material have a greater chance of recovery when:
o Appropriate emergency treatment is
provided by prepared EMS personnel at
the scene;
o The patient is transported to a facility
having the most appropriate personnel and
technical resources; and
o Communication with the medical facility
is open to relay information regarding the
material impacting the patient.
EMS agencies are a crucial link in the community response system that responds to a
facility incident. EMS personnel are often the first to arrive at an incident scene. They
must be able to assess the nature of the hazard while attending to the immediate needs of
victims.
APPENDIX B - EMERGENCY PLANNING
Page B.6
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
The absence of EMS personnel in emergency response planning has resulted in the
following types of problems:
o Poorly managed incidents by facility personnel and first responders;
o Ineffective and/or redundant communication channels between private and public
sectors;
o Medical facilities inadequately prepared to treat or manage incoming patients
involved in hazardous materials incidents; and
o Medical staff uninformed as to the lethal effects of a chemical release.
EMS personnel reinforce the importance of defining safe response scenarios, medical
practices, and transportation guidelines in the event of an emergency. They are a critical
link in the collaboration with other response agencies (e.g., police and fire departments)
and hospitals.
EMS personnel
should also
participate in annual
disaster drills and
emergency plan
reviews, helping to
ensure that each ERP
is effective and
benefits from lessons
learned during other
emergency events.
APPENDIX B - EMERGENCY PLANNING
Page B.7
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
B.4 Emergency Planning and Response Guidance
Assistance in developing an emergency response program may be found at the US
National Response Team (NRT) home page:
http://www.nrt.org/production/nrt/nrtweb.nsf/PagesByLevelCat/Level3GeneralNRT
Publications?Opendocument
The NRT home page provides links to several guidance documents, including:
o Update of Hazardous Materials Emergency
Planning Guide (NRT-1 Update, 2001). Addresses
outdated information of the 1987 Hazardous
Materials Emergency Planning Guide.
o Criteria for Review of Hazardous Materials
Emergency Plans (NRTla, 1998). Supplements
NRT-1. Recommends criteria to RRTs for
reviewing their emergency plans. Criteria is also
useful for SERCs and LEPCs during plan revision.
o Integrated Contingency Plan, 61 FR 28642,
June 5, 1996. Guidance on consolidating multiple
plans into a single, functional emergency response
plan that complies with various federal regulations.
HazaidouE MateciaIs Emergency —
^^^^^^^^~ Planning Guide ~~
NATIONAL RESPONSE TEAM
Hazardous Materials Guide
First Responders
Hazardous Materials Guide for First
Responders, Federal Emergency
Management Association and U.S. Fire
Administration, 1998. Includes specific
emergency response procedures for
anhydrous ammonia releases.
http://www.d.umn.edu/ehso/haz guide.pdf
APPENDIX B - EMERGENCY PLANNING
Page B.8
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
TlOSH
POCKET GUIDE TO
CHEMICAL
HAZARDS
T Of HEALTH A*O HU-MJU* SE«VSC*S
NIOSH Pocket Guide to Chemical Hazards,
United States Centers for Disease Control and
Prevention. Provides ten relevant databases, including
recommendations for chemical protective clothing,
toxicologic chemical reviews, and the Emergency
Response Guidebook. For the most up to date
information, view the pocket guide electronically
at: http://www.cdc.gov/niosh/npg/
An NIOSH app may be downloaded for your phone or
tablet and/or hard copies may be ordered or
downloaded free at the above web address.
APPENDIX B - EMERGENCY PLANNING
Page B.9
-------
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
APPENDIX C - GOVERNMENT REQUIREMENTS
C.I Federal Requirements
When it comes to managing your facility in accordance to environmental laws, the
Environmental Protection Agency's laws and regulations are not the only ones to
consider. Federal statutes and regulations relevant to anhydrous ammonia process safety,
accident prevention, emergency planning, and release reporting are summarized in the
table below. Facilities are encouraged to review this information before a release occurs.
Statute and
Regulation
Description
Source(s)
Comprehensive
Environmental
Response,
Compensation, and
Liability Act
(CERCLA,
"Superfund")
40 CFR 302.6(a)
Hazardous Substance Release Reporting
Releases equal to or greater than the reportable
quantity of 100 pounds of ammonia must be
immediately reported to the National Response
Center (NRC).
National Response Center:
(800) 424-8802
Clean Air Act (CAA)
Section 112(r)(l)
40 CFR 68
General Duty Clause is applicable to facilities
that store or use any amount of extremely
hazardous substances, including anhydrous
ammonia. The General Duty clause indicates
facilities "have a general duty... to identify
hazards which may result from releases
using appropriate hazard assessment
techniques, to design and maintain a safe
facility taking such steps as are necessary to
prevent releases, and to minimize the
consequences of accidental releases, which
do occur."
EPA Hotline:
(800) 424-9346 or
(703) 412-9810 or
(800) 553-7672 (TDD)
http ://www2. epa. gov/rmp/ge
neral-dutv-clause-fact-sheet
Clean Air Act (CAA)
Section 112(r)(7)
40 CFR 68
Risk Management Program
Facilities having more than 10,000 pounds of
anhydrous ammonia must develop a hazard
assessment, a prevention program, an
emergency response program, and submit a risk
management plan to EPA.
EPA Hotline:
(800) 424-9346 or
(703) 412-9810 or
(800) 553-7672 (TDD)
http://www2.epa. gov/rmp
APPENDIX C - GOVERNMENT REQUIREMENTS
Page C.I
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Statute and
Regulation
Description
Source(s)
CAA
40 CFR 608
Regulates the use, recycling, and disposal of
certain ozone-depleting substances (ODS) in
applications including industrial processes and
commercial refrigeration systems. The rules
apply to systems that contain
chlorofluorocarbon (CFC) or hydrochlorofluro-
carbon (HCFC) refrigerants or refrigerant
mixtures containing a CFC or HCFC.
(Referenced here to emphasize that 40 CFR 608
is not applicable to anhydrous ammonia
refrigeration systems.)
(800) 296-1996
http://www2.epa.gov/compli
ance/clean-air-act-caa-
compliance-monitoring
Clean Water Act
(CWA)
40 CFR 112
The CWA regulates the discharge of
contaminants to surface water bodies from a
point source. If a facility releases or
discharges aqueous ammonia, then the CWA
does apply and discharges of ammonia effluent
would be regulated under state-specific NPDES
permit programs. EPA's published ambient
water quality criteria for ammonia is in EPA
822-R-99-014 (December 1999).
http://www2.epa.gov/compli
ance/clean-water-act-cwa-
compliance-monitoring
CWA
40 CFR 117.21
Discharges equal to or greater than the
reportable quantity of 100 pounds of ammonia
(that threaten waterways) must be reported to
National Response Center (NRC). Reporting
should be by the person in charge of the source
vessel or facility.
National Response Center
(800) 424-8802
CWA
40 CFR 122.26
Storm water Regulations
Regulates runoff from activities that take place
at industrial facilities, such as material handling
and storage that discharges industrial pollutants
into nearby storm sewer systems and water
bodies. This may adversely impact water
quality and a permit may be required for this
runoff.
http ://water. epa. gov/polwast
e/npdes/stormwater/Stormw
ater-Regulations.cfm
APPENDIX C - GOVERNMENT REQUIREMENTS
Page C.2
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Statute and
Regulation
Description
Source(s)
EPCRA
40CFR355.10
Community Emergency Planning
Facilities that have ammonia equal to or greater
than the threshold planning quantity (TPQ) of
500 pounds must report to their Local
Emergency Planning Committee (LEPC) and
State Emergency Response Commission
(SERC), and comply with EPCRA Section 302
requirements. LEPC and SERC notification
must be within 60 days of the date of
exceedance of the TPQ and include information
for the community emergency response plan.
Facility must also appoint a liaison from the
facility to the LEPC.
EPA Hotline:
(800) 424-9346 or
(703) 412-9810 or
(800) 553-7672 (TDD)
http ://www2. epa. gov/epcra
EPCRA
40 CFR 355.40
Emergency Release Notification
Releases equal to or greater than the reportable
quantity of 100 pounds of ammonia must be
immediately reported to the LEPC, SERC, or
local emergency response personnel (911 in the
case of transportation-related release) in
accordance with EPCRA Section 304. Written
follow-up is required within 30 calendar days.
National Response Center:
(800) 424-8802
http://www2.epa.gov/epcra/
epcra-section-304
EPCRA
40 CFR 370.20
Hazardous Chemical Reporting
Facilities that have ammonia equal to or greater
than 500 pounds must submit a Material Safety
Data Sheet (MSDS) or chemicals list to their
LEPC, SERC, and local fire department in
accordance with EPCRA Section 311.
Facilities must also comply with EPCRA
Section 312's Tier I (aggregate) or Tier II
(chemical specific) annual, March 1st, inventory
reporting requirements (e.g., quantity, location,
hazards, reactive). MSDSs or chemicals list
must be provided within 3 months of chemical
presence on-site, and then updated with any
significant changes to quantity or process.
General EPCRA:
http ://www2. epa. gov/epcra
SERCs:
http ://www2. epa. gov/epcra/s
tate-emergencv-response-
commissions-contacts
LEPCs:
http://www2.epa.gOv/epcra/l
ocal-emergencv-planning-
committees
APPENDIX C - GOVERNMENT REQUIREMENTS
Page C.3
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Statute and
Regulation
Description
Source(s)
EPCRA
40 CFR 372
Toxic Chemicals Release Inventory
Manufacturing businesses with certain NAIC
codes and ten or more employees that
manufacture, process, or otherwise use
ammonia above an applicable threshold
quantity of 10,000 pounds must file annually a
Toxic Chemical Release form with EPA and the
state by July 1st.
If more than 10,000 pounds of ammonia is
added to a refrigeration system during a
calendar year it will trip the "otherwise used"
criteria for filing. In accordance with Section
313, Annual Form A and Form R (unusual)
reports are due July 1 of each year.
EPA Hotline:
(800) 424-9346 or
(703) 412-9810 or
(800) 553-7672 (TDD)
http://www2.epa.gov/toxics-
release-inventory-tri-
program
Occupational Safety
and Health Act
(OSHA)
29 CFR 1910.38a
Employee Emergency Action Plans and
Fire Prevention Plans
Ammonia incidents should be covered by these
plans. This generally applies to facilities
which plan to rely on off-site services for
emergency response personnel and equipment.
Anyone not part of the Incident Command
system should evacuate the facility.
OSHA Public Information:
1-800-321-OSHA(6742)
https://www.osha.gov/SLTC
/etools/ammonia refrigerati
on/emergencv/index.html
OSHA
29 CFR 1910.111
Storage and Handling of Anhydrous
Ammonia
This standard does not apply to refrigeration
plants that use ammonia solely as a refrigerant.
This standard does apply to the design,
construction, location, installation, and
operation of any part of an ammonia
distribution system (e.g., bulk storage facilities,
distributors) including its associated pipelines
and is typically applicable to ammonia retailers.
This standard also does apply to other non-
mechanical refrigeration systems users of
ammonia (e.g., anhydrous ammonia used in the
metal treating or reproduction industries).
OSHA Public Information:
1-800-321-OSHA(6742)
https://www.osha.gov/SLTC
/ammoniarefrigeration/index
.html
APPENDIX C - GOVERNMENT REQUIREMENTS
Page C.4
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Statute and
Regulation
Description
Source(s)
OSHA
29 CFR 1910.119
Process Safety Management (PSM) Standard
Facilities that have ammonia equal to or greater
than the threshold quantity of 10,000 pounds
are subject to a number of requirements for
management of hazards, including process
hazards analysis and maintaining mechanical
integrity of equipment. Note that external
threats must be considered when conducting a
process hazard analysis. The PSM standard is
applicable to ammonia manufacturers and
facilities with large ammonia refrigeration
systems, but not applicable to retail facilities.
OSHA Public Information:
1-800-321-OSHA(6742)
https://www.osha.gov/SLTC
/processsafetymanagement/
OSHA
29CFR1910.120(q)
Hazardous Waste Operations and
Emergency Response Planning
Generally these requirements apply to
employers who use anhydrous ammonia
refrigeration systems. Requirements include
personal protective equipment testing, levels of
protective gear, compliance guidelines, and
training curriculum guidelines. Generally
applies to facilities that establish capability to
proactively respond to an ammonia release as
first responders.
OSHA Public Information:
1-800-321-OSHA(6742)
https://www.osha.gov/SLTC
/hazardouswaste/index. html
OSHA
29 CFR 1910.132,
1910.133, 1910.134,
1910.138, & 1910.156
Personal Protective Equipment
Employers are required to provide personal
protective equipment to employees who may be
exposed to ammonia. Employees who wear a
respirator during the course of their job, or who
are expected to wear one during an emergency
response situation, must follow the
requirements of the respiratory protection
standard.
OSHA Public Information:
1-800-321-OSHA(6742)
https://www.osha.gov/SLTC
/personalprotectiveequipme
nt/index.html
OSHA
29 CFR 1910.1200
Hazard Communication
Requires facilities using toxic and hazardous
chemicals to evaluate potential hazards and
communicate this information to the
employees.
OSHA Public Information:
1-800-321-OSHA(6742)
https://www.osha.gov/dsg/h
azcom/index.html
APPENDIX C - GOVERNMENT REQUIREMENTS
Page C.5
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
Statute and
Regulation
Description
Source(s)
Oil Pollution Act
(OPA) of 1990
40CFR112,
33 CFR 154,
49 CFR 194,
30 CFR 254
Spill Prevention, Control, and
Countermeasure (SPCC)
Facilities storing oil above 1,320 aggregate
gallons in containers larger than 50 gallons
must prepare and implement SPCC plans.
These plans need to address security elements
such as locks, guards, access, lighting, and
vandalism.
http ://www2. epa. gov/region
8/spill-prevention-control-
and-countermeasure-spcc
Resource Conservation
and Recovery Act
(RCRA)
40 CFR 264, 265,
and 279.52
Anhydrous ammonia is not a listed hazardous
waste (40 CFR 261). However, disposal of
anhydrous ammonia requires hazardous waste
characterization. Provided that a facility does
not treat, store (> 90 days), or dispose of
hazardous waste from anhydrous ammonia
systems, the facility does not have to have a
RCRA permit.
EPA Hotline:
(800) 424-9346 or
(703) 412-9810 or
(800) 553-7672 (TDD)
http://www.epa.gov/epawast
e/inforesources/online/
Department of
Homeland Security
Chemical Facilities
Anti-Terrorism
Standards (CFATS)
CFATS Act of 2014
Facilities that possess any chemical on the
CFATS Appendix A: DHS Chemicals of
Interest List at or above the listed Screening
Threshold Quantity (STQ) for each chemical.
The STQ for anhydrous ammonia is 10,000
pounds.
Report a possible security
concern involving the
CFATS regulation.
CFATS Chemical Facility
Security Tip Line:
877-394-4347
APPENDIX C - GOVERNMENT REQUIREMENTS
Page C.6
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
C.2 State and Local Requirements
The federal statutes and regulations discussed above are the primary requirements.
However, state and local governmental agencies may have their own (possibly more
strict) requirements that are based on the federal laws. Therefore, be sure to check
applicable state and local government industrial, agricultural, chemical, and
environmental requirements, including, but not limited to the following:
o Department of Agriculture
o Fire Marshal
o Environmental Division
o Local Building/Electrical Codes
o Boiler/pressure vessel inspector
o Department of Health
o State OSHA programs
Your State Emergency Response Commission (SERC) also will be able to help you
determine any applicable state and local requirements. Locate your state's SERC
at: http://www2.epa.gov/epcra/state-emergency-response-commissions-contacts.
APPENDIX C - GOVERNMENT REQUIREMENTS
Page C.7
-------
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
APPENDIX D - EDUCATION AND INFORMATION RESOURCES
For further training about anhydrous ammonia refrigeration, visit the following websites. (Please
note: The listings in this Appendix are not all-inclusive and do not constitute EPA endorsement.)
o Refrigerating Engineers & Technicians Association (RETA) provides online training
which meets OSHA documenting requirements. Visit www.reta.com for additional
information.
o Industrial Refrigeration Consortium (IRC) at the University of Wisconsin-Madison
offers several different educational opportunities. Visit http://www.irc.wisc.edu/ for
additional information.
o International Institute of Ammonia Refrigeration (IIAR) offers ammonia
refrigeration-related educational videos, short courses, technical publications, and an
annual conference. Visit www.iiar.org for additional information.
o Georgia Ammonia Refrigeration Program (GARP) at the Lanier Technical College
offers hands-on training oriented toward operators of industrial ammonia refrigeration
systems, and PSM/RMP implementation classes.
Visit http://www. 1 aniertech.edu/EcoDev/Ammonia-Refrigeration.aspx for additional
information.
o Garden City Community College offers hands-on credit courses for refrigeration
engineers and technicians. Visit www.nh3gccc.com for additional information.
o Garden City Ammonia Program provides hands-on training for the industrial ammonia
refrigeration operators for PSM/RMP safety, compliance, and efficiency.
Visit http ://www.ammoniatraining.com/ for additional information.
APPENDIX D - EDUCATION AND INFORMATION RESOURCES
Page D.I
-------
Left ik
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
APPENDIX E - ANHYDROUS AMMONIA HANDLING QUIZ
The following ten (10) questions can help an individual begin to realize the range of information
and knowledge required to safely handle anhydrous ammonia systems and releases. Answers
follow the quiz.
1. At what concentration is a person able to smell the presence of anhydrous ammonia?
a) 0-4ppm
b) 5-50ppm
c) 51-100ppm
d) 101-150ppm
2. In accordance with 40 CFR 68, what is the threshold quantity for anhydrous ammonia?
a) 10 pounds
b) 100 pounds
c) 1,000 pounds
d) 10,000 pounds
3. Refrigeration facilities are subject to the General Duty Clause if they:
a) Have > 1,000 pounds of ammonia in their refrigeration system.
b) Have < 10,000 pounds of ammonia in their refrigeration system.
c) Have < 100,000 pounds of ammonia in their refrigeration system.
d) All of the above are correct.
4. If your facility is subject to OHSA PSM standards, it is automatically Program 2 Risk
Management Program facility under the Clean Air Act.
True or False?
5. The primary RAGAGEP for developing operating procedures is ANSI/IIAR Standard 7.
True or False?
APPENDIX E- ANHYDROUS AMMONIA HANDLING QUIZ
Page E.I
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
6. Which of the following information is the owner or operator of a Program 3 facility required
to provide when verifying the completion of the operator's training?
a) the operator's identity
b) the method used to verify the operator understood the training
c) the date of training
d) a) thru c) are all correct
7. Your facility is required to notify the appropriate emergency response authorities when
pounds of anhydrous ammonia is released from your facility.
a) >1
b) > 10
c) > 100
d) > 1,000
8. An accident must be reported in the Risk Management Plan Accident History section if it
causes:
a) Known off-site evacuations
b) On-site sheltering in place
c) Reporters to show up on or off-site
d) On-site environmental damage
9. All anhydrous ammonia facilities are required to develop a Risk Management Program
Emergency Response Plan.
True or False?
10. For emergency planning purposes, a facility must notify their LEPC and SERC if they use or
store more than pounds of anhydrous ammonia.
a) 100
b) 500
c) 1,000
d) 10,000
APPENDIX E- ANHYDROUS AMMONIA HANDLING QUIZ
Page E.2
-------
Accident Prevention and Response Manual for Anhydrous Ammonia Refrigeration System Operators
U.S. Environmental Protection Agency Region 7
ANSWERS TO QUIZ
1. At what concentration is a person able to smell the presence of anhydrous ammonia?
b) 5-50ppm(Page 1.2)
2. In accordance with 40 CFR 68, what is the threshold quantity for anhydrous ammonia?
d) 10,000 pounds (Page 2.2)
3. Refrigeration facilities are subject to the General Duty Clause if they:
d) All of the above are correct. (Page 3.1)
4. If your facility is subject to OHSA PSM standards, it is automatically Program 2 Risk
Management Program facility under the Clean Air Act.
False (Page A.I)
5. The primary RAGAGEP for developing operating procedures is ANSI/IIAR Standard 7.
True (Page 3.2)
6. Which of the following information is the owner or operator of a Program 3 facility required
to provide when verifying the completion of the operator's training?
d) a) thru c) are all correct (Page 3.18)
7. Your facility is required to notify the appropriate authorities when pounds of
anhydrous ammonia is released from your facility.
c) > 100 (Page 4.3)
8. An accident must be reported in the Risk Management Plan Accident History section if it
causes:
a) Known off-site evacuations (Page A 4)
9. All anhydrous ammonia facilities are required to develop a Risk Management Program
Emergency Response Plan.
False (Page B.I)
10. For emergency planning purposes, a facility must notify their LEPC and SERC if they use or
store more than pounds of anhydrous ammonia.
b) 500 (Page B.3)
APPENDIX E- ANHYDROUS AMMONIA HANDLING QUIZ
Page E.3
------- |