oEPA
               United SIMM
               Environmental Protection
               Agency
Off ice of
Solid Waste and
Emergency Response
                DIRECTIVE NUMBER:  9481.00-3

                TITLE:  Guidance 'on Issuing Permits to Facilities
                      Required to Analyze Ground-water for Appendix
                      VIII Constituents

                APPROVAL DATE:  2/1/86

                EFFECTIVE DATE:  2/1/86

                ORIGINATING OFFICE:   osw

                D FINAL

                D DRAFT

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                 §)TATU&:     [ }  B- Pending AA-OSWER approval
                            [ j  C- For review &/or comment
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                REFERENCE (other document*):      headquarters
  OSWER      OSWER      OSWER
VE   DIRECTIVE   DIRECTIVE    Dl

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v/EPA
Wasrungton. uC. 20460
OSWER Directive Initiation Reauest
9481.00-3,
Name of Contact Person
Rob Aoril
Lead 0",ce QOUST
D OERR D OWPE
^ OSW Q AA-OSWER
Ma.i Code - Branch Teieon
WMD 3
Approves lyr R»v
Signature of O'f'ce Director
3ne Numoer
82-7917
ew
Date
i
 ;tie
  Guidance  on  Issuing .Permits to Facilities  Required  to
  Analyze Ground-water  for Appendix  VIII Constituents
Summary ot Directive
    Written for State  and  Regional  RCRA  offices to  better  define
    groundwater monitoring.
Key Words:
    Appendix  VIII  Constituents,  Groundwater Monitoring
Type of Directive iManuai. Policy Directive. Announcement, etc.i
                                Status
                                   LJ Draft
                                   £1 Final
                                                                                   1	i New
                                                                                   LJ Revision
Does tnis Directive Supersede Previous Directiveis;'   [  | Yes   [c] No   Does it Supplement Previous Oirectiv«si'  (  \ fes   )f\ No
if "Yes" tc Either Question. What Directive (number, ntlei
Revew Plan
   C AA-OSWER   D OUST
   D OERR       D OWPE
   LJ OSW       LJ Regions
D OECM
D OGC
D OPPE
D
Otner ;Soecifyl
Tr-.s Bequest Meets OSWER Directives Svstem Format
S'gr-ature of Lead Off.ce Directives Officer
                                             Date
Signature of OSWER Directives Officer
                                             Date

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                                                  0;. :  -.LiCY DIRECTIVE NO.

                                                  4 8 1 -00-3
           Guidance on Issuing Permits to Facilities
          .-/'  Required to Analyze Ground Water for
           	Appendix VIII Constituents	


     EPA's regulations for the issuance of permits to land-based
hazardous waste facilities require some owners and operators to
analyze ground water for each of the approximately 375 hazardous
constituents listed in Appendix VIII to 40 CFR Part 261.
Experience has shown the Agency that it is not possible to
analyze for all of these constituents in a timely manner.  For
some constituents, analysis is impossible under any time frame.
This document presents EPA's latest views on the analytical
potential of each Appendix VIII constituent and explains how
permit writers may exercise discretion under the existing
regulations to expedite permit issuance where Appendix VIII
analyses are required.

                          Background

     EPA promulgated Appendix VIII in 1980 to identify a broad
range of chemicals that should be considered for regulation
under the RCRA hazardous waste program.  EPA used the list
primarily to identify substances that should be listed as
hazardous wastes.  In 1982, however, EPA adopted the same list
as an important element in its ground-water protection program
for land-based hazardous waste facilities.  Under some circumstances
the new regulations required owners and operators'to analyze
ground water at their facilities for the presence of each
constituent on the list.  Some owners and operators were required
to submit such analyses as part of their permit applications.

     At the time of promulgation EPA acknowledged that it
lacked analytical methods for nine "of the Appendix VIII
constituents.  47 Fed. Reg. 32296 (July 26, 1982).  As owners
and operators of hazardous waste facilities tried to implement
these requirements, however, EPA learned that analysis would
be extremely difficult or impossible for a larger number of
constituents.  Specific problems are described in more detail
in the technical discussion that follows this introduction.

     EPA took several actions intended to mitigate the problems.
For example, EPA wrote a series of memoranda identifying some
of the more intractable analytical problems and recommending
the use of enforcement discretion.  See, for example, the
August 16, 1984 memorandum from Courtney Price and Lee Thomas on
"Enforcing Ground-Water Monitoring Requirements in RCRA Part B
Permit Applications".  Also, in 1984 EPA proposed to eliminate
22 Appendix VIII constituents from the ground-water analysis
requirements.  49 Fed. Reg. 38786 (October 1, 1984).

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                            - 2 -


     Enactment of the 1984 RCRA amendments further sharpened
this issue.  New provisions in Section 3005(c) require EPA to
take final action on all permits for all land disposal facilities
by November 1988.  If EPA insists that all facilities required
to submit Appendix VIII analyses must test for each Appendix
VIII constituent, EPA will almost certainly miss this deadline.
Hence, in some cases the permit application rules might
conflict with the statutory deadline.  While EPA might miss
the deadline for some facilities for other reasons, requiring
Appendix VIII analyses for as many constituents as conceptually
possible would certainly exacerbate the problem.

     EPA is planning to propose to modify the Appendix VIII
monitoring requirements as quickly as possible.  In the first
of two separate rulemakings it will address the analytical
problems described in this guidance.  Regulatory revisions,
however, will take a number of additional months to complete.

     To respond to this dilemma, EPA has prepared new guidance
on meeting the requirements for permit applications.  Experts
from EPA and State offices met in December 1985 to consider
anew the feasibility of analyzing for each constituent on the
Appendix VIII list.  On the basis of subsequent analytical
experience, they concluded that the earlier relief efforts did
not go far enough.  Where analysis is impossible or so time-consuming
that it conflicts with other requirements, the permitting
regulations contain sufficient flexibility to allow permit
writers to waive analyses for Appendix VIII constituents.  The
experts at the meeting believe that some of the chemicals listed
in the guidance would be present at any site contaminated by any
Appendix VIII constituent.  Thus, no plume of contamination should
escape identification and control, and there will be no loss of
environmental protection.  Permit writers, however, should
also write permit conditions that will "reopen" the waivers
after EPA completes the first stage of its Appendix VIII
rulemaking.  EPA has also concluded that owners and operators
should be analyzing for several other important industrial
chemicals that do not appear on the Appendix VIII list.  The
new "omnibus" condition authority will allow the Agency to
write conditions requiring analysis for these additional
substances.

     The remaining sections of this document present the
results of these efforts.  The next section describes in more
detail the technical problems the experts identified and the
solutions they recommended.  The final section presents the
regulatory basis for exercising discretion.  Three lists of
hazardous constituents are attached.  The first list describes

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                            - 3 -


hazardous constituents from Appendix VIII that the group of experts
considered generally suitable for ground water analysis at all
facilities.  The second lists the additional chemicals that
should be analyzed at all facilities.  The third contains all
constituents on Appendix VIII and identifies for specific
constituents the technical problems which make ground-water
analysis difficult or impossible.

     This document is only a guide to the exercise of discretion
under the permit application regulations.  It does not constrain
discretion or require permit writers to follow its recommendations
either generally or in any particular case.  EPA intends it to
provide interim relief to expedite permit issuance while the
Agency pursues regulatory changes to the requirements for
analyzing ground water for Appendix VIII constituents.

     This guidance addresses Appendix VIII only in the context
of ground-water monitoring.  It does not call into question the
appropriateness of using Appendix VIII for other purposes, such
as listing hazardous wastes or conducting corrective action for
releases to any other environmental medium.

     A.  Technical Problems and Recommended Solutions

     Analyzing ground water for all Appendix VIII constituents
is impossible for several reasons.  Appendix VIII is ill-defined;
some listings are ambiguous and others are indefinitely large
classes of compounds.  When placed in water some Appendix VIII
constituents separate into ions which must be measured as such,
while others actually react with water and decompose.  Many
Appendix VIII constituents are so rare that analytical standards
are unavailable.  While experience with analysis of many constituents
is sparse, preliminary results indicate that many constituents
are not measured adequately or even detected at all by EPA's
standard analytical methods.

     As a result, the regulated community has been forced to
guess as to how to try to fulfill the regulations and analytical
labs have been forced to provide data they suspect are unreliable.
Permit writers have received a number of different analytical
schemes purporting to meet the Appendix VIII requirement, but
none of these represented a complete analysis for all
constituents listed on Appendix VIII.

     In December 1985 EPA convened a four-day meeting with
experts from EPA Headquarters, EPA Reqional Offices, EPA Labora-
tories and State Offices.  Appendix VIII was considered in light of
the above problems and a revised list was compiled.  This list
represents EPA's current guidance as to what analysis of Appendix
VIII constituents is feasible to do routinely.  Hard data were
lacking in several instances and decisions on the list required
professional judgment.

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                            - 4 -

     Ambiguous listings and categories

     Ambiguous listings on Appendix VIII have been clarified
with the addition of systematic names which specify the exact
chemical structure.  These names generally utilize the nomen-
clature of the ninth Collective Index of Chemical Abstracts,
and are generally known as "9CI" names.  Chemical Abstracts
Service Registry Numbers were added.

     Each of the categories of compounds was carefully examined.
In most cases some or all members of the category were already
listed separately on Appendix VIII, and those separate listings
were chosen to represent the category.  In other cases it was
possible to identify a single analyte, generally a metal, which
adequately represented the category.  In several instances the
group decided to list as representatives chemicals which EPA
earlier had identified as priority pollutants under the Clean
Water Act or listed for ground-water analysis under Superfund.
The group felt that such chemicals would make appropriate
representatives of Appendix VIII categories because EPA has
found that chemicals on these lists generally pose significant
environmental threats.  The priority pollutant list, for example,
was based on production volumes and environmental risks.  In a
few cases the group found no members of a category listed separately
on Appendix VIII or on the other two lists.  To avoid leaving
these categories unrepresented, the group selected a common
commercial chemical as a representative.

     Removing these ambiguities should expedite compliance with
analytical requirements because it will reduce the need to negotiate
the meaning of these terms for each Appendix VIII analysis.
Designating representatives for categories will save time by
significantly reducing the number of chemicals each analysis
must address.

     Constituents unstable in water

     Since ionic compounds dissociate in water, Appendix VIII
analyses must focus on the inorganic anions and cations that
are significant in ground water.  Action is based on total
levels of, for example, cadmium or cyanide, without regard for
what compound was their source.  Appendix VIII ionic constituents
have, therefore, been replaced by listings of individual ions
or elements.  Constituents which decompose in water within
approximately two days have been excluded from the revised list.

     Organometallic constituents

     Organometallic compounds presented a special problem.
In theory one could test for the presence of the compound by

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                            - 5 -


testing for the metal.  However, this does not measure the
amount of the organometallic compound and the listing on Appendix
VIII waa.based on the particular hazards of the compound, not
the metal.  EPA's standard test methods do not produce acceptable
data for organometallic compounds.  Therefore, the guidance
places the organometallic compounds into the group with no
analytical methods.  Since the metals in question are all
listed on the guidance for other reasons, there is no loss of
coverage for them.


     Unavailable standards

     Constituents without commercially available standards have
also been excluded.  It is possible to analyze for such con-
stituents using similar chemicals as surrogate standards, but
such data are inherently less reliable.  Moreover, such procedures
require special expertise.  Competition for the limited capacity
in laboratories qualified to perform such analyses may delay permit
issuance.  For the purpose of this guidance, "unavailability"
means that no one will sell reasonably pure samples of a chemical
to analytical laboratories.  While this decision was based on
the difficulty of producing reliable analytical data without
standards, EPA believes there will be serendipitous environmental
benefits.  The absence of commercially available standards
means there is no market for the pure chemical.  Also, most
of the chemicals in this group are so complex as to be unlikely to
be accidental byproducts.  Consequently, the chemical is unlikelv
to be sent to hazardous waste facilities for disposal.  Were
EPA to require widespread analysis of such a chemical, it
might create an incentive for a specialty chemical manufacturer
to start production of the chemical for laboratory use —
clearly an undesirable result.

     Lack of standardized test methods

     EPA's standard methods for analysis of large groups of
compounds are atomic absorption (AA) or inductively coupled
plasma (ICP) for metals, gas chromatography/mass spectroscopy
(GC/MS) for most organics, and gas chromatography  (GC) for
high sensitivity pesticide analyses.  For some Appendix VIII
constituents which are not amenable to these methods, high
performance liquid chromatography  (HPLC) has been proposed.
Single-column HPLC, however, does not positively identify
compounds and, therefore, is inappropriate for complex samples
containing unknown constituents.  These are precisely the
conditions which apply when the regulations call for Appendix
VIII analyses.  This problem limits the usefulness of HPLC
in this situation.  EPA is actively pursuing research into
using multiple column HPLC systems or coupling HPLC with mass

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                            - 6 -


spectroscopy to address this problem.  Until this is accomplished,
HPLC analysis of complex ground water samples containinq
unknown chemicals is not feasible.

   '  Some constituents which EPA preliminarily identified as
analyzable by EPA's GC/MS methods have proven not to yield
reliable results, so the group recommended exclusion of these
constituents from the short term guidance.  EPA is pursuing
research into improved GC/MS methods to address this problem.
However, the group decided not to exclude a number of compounds
of limited volatility that do not respond to a conventional
GC/MS analysis using conventional purge and trap sample preparation.
The group decided to recommend these compounds for routine
analysis because they can be detected by using a heated purge
and trap method to prepare for GC/MS.  Heated purge and trap
occurs in conjunction with GC in the RCRA methods and in conjunction
with GC/MS in other.EPA methods.  EPA will identify these
compounds in a separate document that it plans to prepare in
the very near future.

     As a theoretical matter, it might be possible to develop
reasonably accurate methods to analyze ground water for all
or nearly all of the constituents listed in Appendix VIII
that lack standardized test methods.  EPA, however, is not
certain that an acceptable method could be developed for each
constituent.  Developing such methods, moreover, would be
extremely time-consuming.  An analyst essentially would have
to experiment with each constituent until he developed a
technique that would provide data.  Obtaining reasonably
accurate data for each of the constituents lacking test methods
could take months.

     Furthermore, such experiments would be largely site-specific.
Different waste matrices and different ground-water chemistry
would affect the result of the analysis.  Since these parameters
vary widely at hazardous waste facilities, methods acceptable
for one facility would not necessarily work at other facilities.
Also, relatively few laboratories are capable of performing such
sophisticated analyses.  Consequently, if each of the owners or
operators of facilities requesting RCRA permits tried to conduct
full Appendix VIII analyses, it could take years to complete
all the permit applications.  In addition, such data are generally
less reliable than data generated by standardized methods.
Consequently, EPA believes permit writers should exercise
discretion in calling for analyses of constituents in this
category.

     In summary, the first list attached at the end of this
document represents EPA's current opinion as to which Appendix
VIII constituents can be routinely analyzed in ground water at

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                            - 7 -


most facilities at the present time.  It has been derived by
examining the present Appendix VIII in the light of a number
of known analytical problems.  It should be noted that cost,
mobility in ground water, the nature of the wastes at particular
sites, and other similar factors were not considered in this
process.

     Adding Chemicals from the Superfund List

     The group also recommended that owners and operators
should generally analyze for an additional list of 25 hazardous
substances that appear on the Superfund program's "Hazardous
Substances List," but do not appear on Appendix VIII.  These
materials are important industrial chemicals that have been
found frequently at hazardous waste sites.  They are potentially
useful for identifying and characterizing ground-water contamin-
ation.  Analysts can identify them using the same generally
applicable methods recommended for the Appendix VIII consti-
tuents on the short-term guidance list.  Performing these
additional analyses should not consume a significant share of
laboratory resources or contribute to a general delay in per-
forming Appendix VIII analyses.  Moreover, requiring analysis
of these chemicals under RCRA will promote consistency between
the RCRA and Superfund hazardous waste programs.  The 25
chemicals are listed in the second attachment to this document.

     B.  Regulatory Basis for Exercising Discretion

     Waiving Analysis in Permit Applications

     In some circumstances EPA's existing regulations require
owners and operators of hazardous waste facilities to submit
full Appendix VIII analyses as part of their permit applications.
If a plume of contamination from a regulated unit has entered
ground water at the time of permit application, 40 CFR
§270.14(c ) (4 ) requires the owner or operator to characterize
the plume by analyzing for "each" Appendix VIII constituent.
If hazardous constituents are detected, owners or operators
must submit all the data needed to support a compliance
monitoring or corrective action program, including an analysis
for all Appendix VIII constituents.  40 CFR §270.14(c ) (7),  (c)(8)

     When a facility falls within any of these requirements,
Regional Offices can use the flexibility provided in 40 CFR
§270.14(a) to reduce the Appendix VIII burden.  That section
provides that the director of a permit program may "make
allowance" on a "case-by-case" basis where an owner or operator
demonstrates that he or she is unable to submit any information
required to support a Part B permit application.  Because

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                            - 8 -

full Appendix VIII analyses conflict with the need to act
expeditiously on permits, EPA believes it is appropriate to
use the waiver provision in §270.14(a) where owners and
operators demonstrate that they cannot analyze for specific
Appendix VIII constituents or cannot do so within a reasonable
time.  Regions may use the attached lists as guides to evalu-
ating these demonstrations.  Use of the waiver provision
will enable a Regional Office to find that the Appendix VIII
portion of a permit application is complete once the owner
or operator submits data on all non-waived constituents.

     The problems described in the technical discussion cover
a range of analytical difficulties.  For some constituents
analysis is virtually impossible.  For example, analysts
cannot identify constituents that actually decompose in
water.  For other constituents, analysis is difficult, but
conceptually possible if an owner or operator has unlimited
time.  Some constituents require more time and effort than
others.  Increasing the number of difficult constituents
that must be analyzed also increases the time and effort
needed.

     Permit writers should consider this range of problems
when evaluating waiver requests for Appendix VIII constituents.
Where analysis is impossible, waivers are appropriate.
Where analysis is theoretically possible, permit writers should
balance the need to issue permits in a timely manner against
the need to obtain data for constituents which are difficult
to analyze.  Although EPA believes that the revised list
attached to this document strikes an appropriate balance for
most facilities, site-specific factors at particular facilities
may warrant different conclusions for some constituents.  For
example, if a Region knows that a facility produces an
Appendix VIII constituent as a product or by-product, the
Region may want to consider requiring the owner or operator
to develop an analytical method for that constituent.  The
Region may conclude that the increased environmental protection
provided by information on this constituent would justify a
limited delay for an attempt to develop an analytical method.
Also, a facility that produces a compound may have developed
a method to analyze for its presence in ground water.  Regional
Offices might find that this expertise would make analysis
feasible within a reasonable time.

     As explained above, methods developed for a particular
facility would probably be case-specific and unlikely to produce
reliable data for the same constituent at other facilities.
Hence, EPA does not anticipate that such methods will be
generally applicable.  If, however, EPA finds a method suitable
for general use while this guidance is still in effect, EPA
will advise the Regional Offices that the method is available
for general analysis at all facilities.

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     Permit writers/ if they grant waivers for any Appendix VIII
constituents, must also write permit conditions that will reopen
the waivers when EPA completes the first stage of its Appendix
VIII rulemaking.  This will authorize the Regional Administrator
to modify the permit to reguire owners and operators to
analyze for any constituents found on the final ground-water
monitoring list that were waived at the time of permit application
because the Region found it was impossible or too time-consuming
to test for them.  Inclusion of any such constituents in the
final ground-water monitoring requirements would be based on
new information developed during the rulemaking that changed
the Agency's current opinion on the constituent's general
analytical potential.  This new information would authorize
the Regional Administrator to require a permit modification
under §270.41(a)(2).

     Requiring Analysis of Additional Chemicals

     EPA is also recommending that owners and operators of
land-based facilities should generally analyze for 25 hazard-
ous substances included in the second list attached to this
guidance document.  These chemicals appear on the Superfund
"Hazardous Substances List," but do not appear in Appendix VIII.
Permit writers may require owners and operators to analyze
for these chemicals by imposing a permit condition under 40 CFR
§270.32(b)(2).  This new provision is based on the "omnibus"
condition authority added to Section 3005(c) of RCRA by the
Hazardous and Solid Waste Amendments of 1984.  As explained
in the preamble to the new regulation, the new provision
authorizes EPA to add permit conditions beyond existing
regulatory requirements where such conditions are necessary
to protect human health and the environment.  50 Fed. Reg.
28722 (July 15, 1985).  To assist in implementing these
conditions, permit writers should request owners and operators
to submit analytical data on these constituents as part of their
permit applications since these 25 substances are commonly
found at hazardous waste sites and standard test, methods
should produce reliable ground-water analyses.  EPA believes
that RCRA permits will better protect health and environment
if they require these additional analyses.  Permit writers,
of course, should exercise discretion if they find site-specific
problems that conflict with these general positions.

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                             |ry 31, 1986





Appendix VIII  Constituents Recommended  for  Analysis
Common Name .
Acetoni tr i le
Acetophenone
2- Acetyl ami no f luorene
Acrolein
Acryloni trite
Aldrin


Allyl alcohol
4- Aminobiphenyl
Ani I ine
Antimony (total)
Arami te
Arsenic (total)
Barium (total)
Benz fa] anthracene
Benzene
CAS RN
75-05-8
98 86 2
53 96 3
107-02-8
107-13-1
309-00-2


107-18-6
92-67 1
62 53 3
7440-36-0
140-57-8
7440-38-2
7440 39-3
56-55 3
71-43-2
Systematic Name
Acetonitrile
Ethanone, 1-phenyl-
Acetanide, N-9H- f luoren-2-yl •
2-Propenat
2-Propeneni tr i le
1 ,4:5,8-0 imethanonaphthalene, 1,2,3,4, 10, 10-hexachloro- 1,4,4a,5,8,


2-Propen-1-ol
(1,1' -Biphenyl) -4-amine
Benzenamine
Ant imony
Sulfurous acid, 2-chloroethyl 2- (4- ( 1, 1 -dimethylethyl )phenoxy] - 1 -
nethylethyl ester
Arsenic
Barium
Benz [a] anthracene
Benzene

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J|     y 31.  1986
Common Name
Benzenethiol
Benz idine
Benzol bl f tuoranthene
Benzolajpyrene
p- Benzoquinone
Beryl I ium (total )
Bis(2-chloroethoxy)me thane
Bi s(2 chloroethyl ) ether
Bis(2-chloroisopropyl ) ether
Bis(2-ethylhexyl) phthalate
Bromome thane
4-Bromophenyl phenyl ether
Butyl benzyl phthalate
2 -sec -Butyl -4,6-dini trophenol
Cadmium (total )
Carbon disul fide
CAS RN
108-98-5
92-87-5
205-99 2
50 32-8
106-51 4
7440-41-7
111-91-1
111-44-4
108-60-1
117-81-7
74 83-9
101-55-3
85 68 7
88-85-7
7440-43-9
75-15-0
Systematic Name
Benzenethiol
[1,1' Biphenyl] -4.4 ' -diamine
Benz [e] acephenanthry lene
Benzo [ajpyrene
2,5 Cyclohexadiene 1 , 4-dione
Beryl 1 ium
Ethane, 1 , 1 ' - Imethy lenebi s(oxy)] bi s [2-chloro-
Ethane, 1 , 1 ' -oxybis (2-chloro-
Propane, 2,2' -oxybis [1 -chloro-
1 ,2-Benzenedicarboxyl ic acid, bis(2-ethylhexyl ) ester
Methane, bromo-
Benzene, 1-bromo-4-phenoxy
1 ,2-Benzenedicarboxyl ic acid, butyl phenylmethyl ester
Phenol, 2-(1-methylpropyl)-4,6-dinitro-
Cadmium
Carbon disulfide

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pry 31, 1986
Common Name
Chlordane

Chloroethane
p-Chloroani I ine
Chlorobenzene
Chlorouenzi late
2- Chloro- 1 ,3- butadiene
p-Chloro-m-cresol
2- Chloroethy I vinyl ether
Chloroform
Chloromethane
2- Chloronaphthalene
2 Chlorophenol
3-Chloropropene
3-Chloropropioni tri le
Chromium (total)
CAS RN
57-74-9

75-00-3
106-47-8
108-90-7
510-15-6
126-99 8
59-50 7
110-75-8
67-66-3
74-87-3
91-58-7
95-57-8
107-05-1
542-76-7
7440-47-3
Systematic Name
4,7-Hethano-1H- indene. 1 ,2.4,5,6, 7,8,8 octach loco- 2,3, 3a, 4, 7. 7a
hexahydro-
Ethane, chloro-
Benzenamine, 4-chloro-
Benzene, chloro-
Benzeneacetic acid, 4-chloro-o( • (4-chlorophenyl )-«( -hydroxy- ,
ethyl ester
1 ,3 -Butadiene, 2-chloro-
Phenol, 4-chloro-3-methyl -
Ethene, (2-chloroethoxy ) -
Methane, trichloro-
Hethane, chloro-
Naphthalene, 2-chloro-
Phenol , 2-chloro-
1-Propene, 3-chloro-
Propaneni tri le, 3-chloro-
Chromium

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iry 31,  1986
Common Name
Chrysene
Copper ( total )
Acenaphthene
Acenaphthalene
Anthracene
Benzo(ghi )perylene
Benzo(k)f luoranthene
F luorene
Phenanthrene
Pyrene
ortho-Cresol
para-Cresol
Cyanide
i
ODD
DOE
DOT
CAS RN
218 01-9
7440 50-8
83-32 9
208-96-8
120-12-7
191-24-2
207-08-9
86-73-7
85-01 8
129-00-0
95-48-7
106-44-5
57 12-5
72-54-8
72 55-9
50-29 3
Systematic Name
Chrysene
Copper
Acenaphthylene, 1,2-dihydro-
Acenaphthylene
Anthracene
Benzo [gh i ] pery I ene
BenzoCk] f luoranthene
9H- F luorene
Phenanthrene
Pyrene
Phenol, 2-methyl-
Phenol, 4 -methyl -
Cyanide
Benzene, 1,1' -(2,2-dichloroethyl idene)bis(4-chloro-
Benzene, 1,1' - (dichl oroethenyl idene)bis (4 -chloro-
Benzene, 1,1' -(2.2,2- trichloroethyl idene)bis 14- chloro-

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J/    ky 31,  1986
Common Name
Dibenz [a, h] anthracene
0 i benzol a, e) pyrene
Oibenzo(a,h]pyrene
D ibenzola, ilpyrene
1 , 2-Dibromo-3-chloropropane
1 ,2-Dibromoethane
D ibromome thane
Di-n-butyl phthalate
o- D i ch I orobenzene
m- D i ch 1 orobenzene
p Oichlorobenzene
3,3' • D i chlorobenz idine
trans- 1 , 4-Dichloro-2-butene
0 ichlorodi fluorome thane
1 , 1 -D ich I oroethane
1 ,2-Dichloroethane
CAS RH
53-70-3
192-65-4
189-64-0
189 55-9
96 12-8
106-93-4
74-95-3
84-74-2
95-50 1
541-73-1
106-46 7
91-94-1
110-57 6
75-71-8
75-34-3
107-06-2
Systematic Name
Dibenz la.hjanthracene
Naphthofl ,2,3,4-def Ichrysene
Oibenzolb.def Ichrysene
Benzo(rst]pentaphene
Propane, 1 ,2-dibromo-3-chloro-
Ethane, 1 ,2-dibromo-
Nethane, dibromo-
1,2-Benzenedicarboxyl ic acid, dibutyl ester
Benzene, 1,2-dichloro-
Benzene, 1 ,3-dichloro-
Benzene, 1 ,4-dichloro-
[1,1' -Biphenyl) -4,4' -diamine, 3,3' -dichloro-
2 Butene, 1 ,4-dichloro- , (£)•
Methane, dichlorodi f luoro-
Ethane, 1, 1 -dichloro-
E thane, 1,2-dichloro-

-------
                                                                  jry 31,  1986
Common Name
trans- 1 , 2-0 ichloroethene
1 , 1 -Oichloroethylene
Oichloro«ethane
2,4 0 ichlorophenol
2,6-D ichlorophenol
2, 4 0 ichlorophenoxyacet ic acid
1 , 2 - D i ch 1 oropropane
c i s - 1 , 3 • D i ch I oropropene
trans- 1 , 3 -Dich I oropropene
Dieldrin
Oiethyl phthalate
0,0-Diethyl 0-2-pyraz inyl phosphoroth-
ioate
3,3* -Oimethoxybenz idine
p- D i methyl ami noazobenzene
CAS RN
156-60-5
75-35-4
75-09-2
120-83 2
87-65-0
94-75-7
78-87-5
10061-01-5
10061-02-6
60-57-1
84-66-2
297 97 2
119 90-4
60-11-7
Systematic Name
Ethene. 1 ,2-dichloro- , <£)•
Ethene, 1 , 1 -dichloro-
Hethane, dichloro-
Phenol, 2,4-dichloro-
Phenot, 2,6-dichloro-
Acetic acid, (2,4 -dichlorophenoxy)-
Propane, 1 ,2-dichloro-
1-Propene, 1,3-dichloro- , (Z)-
1-Propene, 1,3-dichloro-, (E)-

2,2a.3,6.6a.7,7a-octahydro-, (1a*<,2 A ,2a
-------
lary 31,  1986
Common Name
3,3' -Dime thy (benzi dine
alpha, alpha -Oi met hylphenethyl ami ne
2 , 4 - 0 i me t h y I pheno I
Dimethyl phthalate
meta-Dini trobenzene
4,6-Dini tro-o-cresol
2,4-Dini trophenol
2,4-Dini trotoluene
2,6-Dini trotoluene
Di-n-octyl phthalate
1,4-Dioxane
0 ipheny I amine
1 , 2-Diphenylhydrazine
Di n-propylni tros amine
0 i sul f oton
CAS RN
119-93-7
122 09-8
105-67-9
131 11-3
100-25-4
534 52-1
51-28 5
121-14-2
606 20-2
117-84-0
123-91-1
122-39 4
122 66-7
621-64-7
298-04-4
Systematic Name
[1,1' Biphenyl) -4,4 ' -di amine, 3,3' -dimethyl •
Benzeneethanamine, Ot tci -dimethyl •
Phenol, 2,4-dimethyl -
1 ,2-Benzenedicarboxyl ic acid, dimethyl ester
Benzene, 1,4-dinitro-
Phenol, 2-methyl -4,6-dini tro-
Phenol, 2,4-dinitro-
Benzene, 1 -methyl -2,4 -dini tro-
Benzene, 2-methyl - 1 ,3-dini tro-
1 ,2-Benzenedicarboxyl ic acid, dioctyl ester
1 ,4-Dioxane
Benzenamine, N-phenyl-
Hydrazine, 1 ,2-diphenyl -
1 -Propanamine, N-ni troso-N-propyl -
Phosphorodi thioic acid, 0,0-diethyl S- [2- (ethyl thio)ethyl] ester

-------
                                                                  (ry 31.  1986
Common Name
Endosulfan 1
Endosul fan 1 1
Endrin
Endrin aldehyde
Ethyl cyanide
Ethylene oxide
Ethyl methacryl ate
Fluoranthene
Chlorodibromomethane
Sromodichloromethane
Heptachlor
Heptachlor epoxide
CAS RN Systematic Name
959-98-8 6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9, 10. 10 -hexachioro- 1 ,5,
5a, 6, 9, 9a hexahydro-, 3 oxide, (3Qf ,5a (j,6«,9c<,9a^ )-
33213-65-9 6, 9 -Methane- 2,4,3 benzodioxathi epin, 6, 7,8,9, 10, 10- hexachioro- 1,5,
5a,6,9,9a-hexahydro- , 3-oxide, (3Of ,5acir,6 A.9A ,9a0()-
72-20-8 2,7:3,6-DimethanonaphthC2.3-b]oxirene, 3, 4, 5, 6, 9, 9- hexachioro- la.
2,2a,3,6,6a,7,7a-octahydro- , < laOT, 2 A,2a A.30<,6e<,6a A,7A ,
7a- • r r r r r r
107-12-0 Propaneni trite
75-21-8 Oxirane
97-63-2 2-Propenoic acid, 2-methyl-, ethyl ester
206-44-0 Fluoranthene
124-48-1 Methane, dibromochloro-
75-27-4 Methane, bromodichloro-
76-44-8 4,7-Methano-1H-indene, 1 ,4,5,6, 7,8, 8-heptachloro-3a, 4,7, 7a- tetra-
hydro-



Hexachlorobenzene
                                                 118-74-1
Benzene,  hexachioro-

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pry 31,  1986
Common Name
Hexachlorobutadiene
alpha BHC
beta-BHC
del ta-BHC
gamma- BHC
Hexachl orocyclopentadi ene
CAS RN Systematic Name
87-68-3 1.3 Butadiene. 1 , 1 .2.3,4, 4-hexachloro-

319-84 6 Cyclohexane, 1 .2,3.4.5.6 hexachloro- . < 1 )
319 86 8 Cyclohexane. 1,2.3.4.5.6 hexachloro-. ( 1 4,20f,30(,4 A, 5 <*,6 A)

58-89-9 Cyclohexane, 1.2,3,4,5,6 hexachloro-, { 1of,2
-------
pry 31,  1986
Common Name
lodomethane
Isobutyl alcohol
Isosaf role
Kepone

Lead (total )
Nalononi tri le
Mercury ( total )
Methacryloni tri le
Methapyri lene
Hethoxychlor
3-Methylcholanthrene
4, 4' -Methylenebis(2-chloroani I ine)
Methyl ethyl ketone
Methyl methacrylate
Methyl methanesul f onate
CAS RN
74-88-4
78 83-1
120-58-1
143-50 0

7439-92-1
109-77 3
7439-97-6
126-98-7
91 80-5
72-43 5
56-49-5
101-14-4
78 93-3
80-62-6
66-27-3
Systematic Name
Methane, iodo-
1-Propanol, 2-methyl-
1 ,3-.Benzodioxole, 5-(1 -propenyl )-
1,3,4-Metheno-2H-cyciobuta(cd]penta(en-2-one, 1, 1a.3,3a,4,5,5.5a,
56,6- decach 1 orooc t ahydro -
Lead
Propanedini tri le
Mercury
2-Propeneni trile, 2 • methyl •
1,2 Ethanediamine, M.M-dimethyl -M' -2 pyridinyl -H' - (2- thienylmethyl ) -
Benzene, 1 , 1 ' -(2,2,2- trichloroethyl idene)bis[4-methoxy
Benz [jjaceanthrylene, 1, 2 -di hydro- 3 -me thy t -
Benzenamine, 4,4 ' -methylenebis [2- chloro-
2-Butanone
2-Propenoic acid, 2-methyt-, methyl ester
Methanesul fonic acid, methyl ester
   10

-------
ary 31, 1986
Common Name
Methyl parathion
Naphthalene
1 ,4-Naphthoquinone
1 -Naphthyl amine
2-Naph thyl amine
Nickel (total)
p-Ni troani I ine
N i trobenzene
4-Ni trophenol
N-Ni trosodiphenyl amine
N-Ni trosodi -n- butyl am ine
N-Ni trosodi ethyl amine
N-Ni trosodi me thy I amine
N-Ni trosomethyle thyl am ine
N-Ni trosomorphol ine
N-Ni trosopi peri dine
CAS RN
298-00-0
91-20-3
130-15-4
134 32-7
91-59-8
7440-02-0
100-01-6
98-95-3
100-02-7
86 30-6
924-16-3
55 18-5
62-75-9
10595-95-6
59 89-2
100-75-4
Systematic Name
Phosphorothioic acid, 0.0-dimethyl 0-(4-ni trophenyl ) ester
Naphthalene
1,4-Naphthalenedione
1 -Naphtha I enamine
2-Naphthalenamine
Nickel
Benzenamine, 4-nitro-
Benzene, nitro-
Phenol, 4-nitro-
Benzenamine, M-ni troso-N-phenyl -
1 -Butanamine, N-butyl -N-ni troso-
Ethanamine, N-ethyl -N-ni troso-
Hethanamine, N-methyt -N-ni troso-
Ethanamine, N-methyl -N-ni troso-
Morpholine, 4-nitroso-
Piperidine, 1-nitroso-
   11

-------
                                                                     31, 1986
Common Name
M-Mi trosopyrrot idine
5-Nitro-o- toluidine
Osmium (total)
Parathion
Pentachlorobenzene
CAS RN Systematic Name
930-55-2 Pyrrolidine, 1-nitroso-
99-55-8 Benzenamine, 2-methyl -5-ni tro-
7440-04-2 Osmium
56-38-2 Phosphorothioic acid, 0,0-diethyl 0- (4-ni trophenyl ) ester
608-93-5 Benzene, pentachloro-
Pentachlorodibenzo-p-dioxins
Pentachlorodibenzof urans
Pent ach I oroe thane
Pentachloroni trobenzene
Pentachlorophenol
Phenacet in
Phenol
Phorate
Famphur
76-01-7 Ethane, pentachloro-
82-68-8 Benzene, pentachloroni tro-
87-86-5 Phenol, pentachloro-
62-44-2 Acetamide, N-(4-ethoxyphenyl )-
108-95-2 Phenol
298-02-2 Phosphorodithioic acid, 0,0-diethyl S- [(ethyl thio)methyl] ester
52-85-7 Phosphorothioic acid, 0- (4- ((dimethylamino)sul fonyljphenyl]
0,0-dimethyl ester
2-Picoline
                                                109-06-8
Pyridine, 2-roethyl-
                                                                    12

-------
                                                                 tary 31. 1986
Common Name
Aroclor 1016
Aroctor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254'
Aroclor 1260
Pronamide
2-Propyn- 1 -ol
Pyridine
Resorcinol
Safrole
Selenium (total)
Silver (total)
1,2,4,5-Tetrachlorobenzene
CAS RN
12674-11-2
11104-28-2
11141-16-5
53469-21-9
12672-29-6
11097-69-1
11096-82-5
23950-58-3
107-19-7
110-86-1
108-46-3
94-59-7
7782-49-2
7440-22-4
95-94-3
Systematic Name
Aroclor 1016
Aroclor 1221
Aroclor 1232
Aroclor 1242
Aroclor 1248
Aroclor 1254
Aroclor 1260
Benzam i de , 3,5-dichloro-N-(1,1-dimethyl-2- pr opyny I ) •
2-Propyn-1-ol
Pyridine
\
1,3-Benzenediol
1,3-Benzodioxole, 5- (2-propenyl )-
Selenium
Si Iver
Benzene, 1,2.4,5- tetrachloro-
2,3,7,8-Tetrachlorodibenzo-p-dioxin
1746-01-6
Pibenzolb.e][1,4]dioxin, 2,3,7,8-tetrachloro-
                                                                    13

-------
 31,  1986
Common Name
CAS RN
Systematic Name
Tetrachlorodibenzo-p-dioxins
Tetrachlorodibenzofurans
1.1,1,2-Tetrachloroethane
1,1,2,2-Tetrachloroethane
Tetrachloroethene
Carbon tetrachlor ide
2,3,4,6-Tetrachlorophenol
Tetraethyldi thiopyrophosphate
Thai t ium (total)
Toluene
Toxaphene
Tribromome thane
1,2,4-Trichlorobenzene
1,1,1 -Trichloroe thane
1, 1,2-Trichloroethane
Trichloroethene
630-20-6
79-34-5
127-18-4
56-23-5
58-90-2
3689-24-5
7440-28-0
108-88-3
8001-35-2
75-25-2
120-82-1
71-55-6
79-00-5
79-01-6
Ethane, 1.1,1.2-tetrachloro-
Ethane, 1 , 1 ,2,2- tetrachloro-
Ethene, tetrachloro-
Methane, tetrachloro-
Phenol, 2,3,4,6-tetrachloro-
Thiodiphosphoric acid ( KHO)^ P(S)]- 0), tetraethyl ester
Thai 1 ium
Benzene, methyl -
Toxaphene
Hethane, tribromo-
Benzene, 1,2,4- trichloro-
Ethane, 1,1,1- trichloro-
Ethane, 1 ,1,2- trichloro-
Ethene, trichtoro-
14

-------
 31,  1986
Common Name
Trichloromethanethiol
T r i ch 1 oromonof I uorome thane
2,4,5-Trichlbrophenol
2,4,6-Trichlorophenol
2.4.5-T
Si I vex
1 . 2 , 3 • I r i eh I oropropane
Tris(2,3-dibromopropyl ) phosphate
Vanadium (total)
Vinyl chloride
Zinc (total)
CAS RN
75-70-7
75-69-4
95-95-4
88-06-2
93-76-5
93-72-1
96-18-4
126-72-7
7440-62-2
75-01-4
7440-66-6
Systematic Name
Methanethiol, trichloro-
Hethane, trichlorof luoro-
Phenol, 2,4,5- trichloro-
Phenol, 2,4,6- trichloro-
Acetic acid, (2,4,5- trichlorophenoxy) •
Propanoic acid, 2- (2,4,5- trichlorophenoxy)-
Propane, 1,2,3-trichloro-
1-Propanol, 2,3-dibromo- , phosphate (3:1)
Vanadium
Ethene, chloro-
Zinc
15

-------
                        tary 31, 1986
Superfund Constituents Recommended  for  Analysis
Common Name
Benzoic acid
Acetone
Isophorone
2-Ni troani I ine
2-Mi trophenol
2 -He thy I naphthalene
3-Ni troani 1 ine
Ethyl benzene
Styrene
Benzyl alcohol
Vinyl acetate
4-Methyl -2-pentanone
Dibenzofuran
2-Hexanone
Xylene (total)
4-Chlorophenyl phenyl ether
CAS RN
65-85-0
67-64-1
78-59-1
88-74-4
88-75:5
91-57-6
99-09-2
100-41-4
100-42-5
100-51-6
108-05-4
108-10-1
132-64-9
591-78-6
1330-20-7
7005-72-3
Systematic Name
Benzoic acid
2-Propanone
2-Cyclohexen-1-one, 3,5,5- trimethyl -
Benzenamine, 2-nitro-
Phenol, 2-nitro-
Naphthalene, 2-methyl-
Benzenamine, 3-nitro-
Benzene. ethyl -
Benzene, ethenyl-
Benzenemethanol
Acetic acid ethenyl ester
2-Pentanone, 4-methyl-
Dibenzofuran
2-Hexanone
Benzene, dimethyl -
Benzene, 1-chloro-4-phenoxy-

-------
|ary 31.  1986
Common Name
A I urn i num
Iron
Magnesium
Manganese
Potassium
Sodium
Tin
Cobalt
Calcium
CAS RN
7429-90-5
7439-89-6
7439-95-4
7439-96-5
7440-09-7
7440-23-5
7440-31-5
7440-48-4
7440-70-2
Systematic Name
Aluminum
1 ron
Magnesium
Manganese
Potassium
Sodium
Tin
Cobalt
Calcium

-------
                                                                [ry 31, 1986
                                  Annotated  List  of  All  Appendix  VIII  Constituents
The following  table  briefly summarizes the reasons for  the  changes  in going from the Appendix VIII  list of Hazardous Constituents to the
revised list  recommended  for general ground-water monitoring.   The  first column of the table provides the "Common Name"  or hazardous
constituent name  in  the same order as it appears on the Appendix VIII list.  The second column  indicates the "CAS RN" or Chemical Abstracts
Service Registry  Number.   The  third column lists the "Systematic Name" which corresponds with the CAS RN.  The fourth or last column
provides the  reason(s) for a specific hazardous constituent being changed on the list, coded as follows:



    1.  The hazardous constituent can be analyzed only  by the  HPLC  (High Performance Liquid Chromatography) method, which is  inappropriate
        for complex, unknown ground-water samples.

    2.  The hazardous constituent is a category which cannot be analyzed as a specific entity.  (All such categories have representative
        members on the revised list.)

    3.  The hazardous constituent is unstable in water.

    4.  The hazardous constitent is an inorganic which  ionizes in water.

    5.  Standards are not readily available for the hazardous  constituent.

    6.  No acceptable method  is available for the hazardous constituent.

    7.  The  hazardous constituent is an organometalIic  which cannot be analyzed as a specific entity.

-------
                                                                 pry 31, 1986
Common Name
Acetonitri le
Acetophenone
Warfarin and salts
2- Acetyl ami no f luorene
Acetyl chloride
1 -Acetyl -2- thiourea
Acrolein
Acrylamide
Acryloni tri le
Af (atoxins
Aldrin


Allyl alcohol
Aluminum phosphide
Reason For
CAS RN Systematic Name Change
75-05-8 Acetonitri le
98-86-2 Ethanone, 1-phenyl-
1.2
53-96-3 Acetamide, N-9H- f luoren-2-yl •
75-36-5 Acetyl chloride 3
591-08-2 Acetamide, N-(aminothioxomethyl ) - 1
107-02-8 2-Propenal
79-06-01 2-Propenamide 1
107-13-1 2-Propeneni tri le
1.2
309-00-2 1 ,4:5,8 -Oimethanonaphthalene, 1 , 2,3,4, 10, 10-hexachloro- 1 ,4,4a, 5,8,


107-18-6 2-Propen-1-ol
20859-73-8 Aluminum phosphide (AlP) 3
4-Aminobiphenyl
92-67-1
[1,1*-Biphenyl]-4-amine

-------
,    firy 31.  1986
Common Name
Mitomycin C
5- (Ami none thy I )-3-isoxazolol
Ami trole
Ani I ine
Antimony and compounds, N.O.S.*
Arami te
Arsenic and compounds, N.O.S.*
Arsenic acid
Arsenic pentoxide
Arsenic trioxide
Auramine
Azaserine
Barium and compounds, N.O.S.*
Barium cyanide
Benz tc] acridine
Reason For
CAS RN Systematic Name Change
50-07-7 Azirinot2',3' :3,4) pyrrol otl ,2- a) indole-4,7-dione, 6- ami no- 8- [((ami no
carbonyl )oxy]methyl] -1, 1a,2,8,8a,8b-hexahydro-8a-methoxy-
5-methyl-, [1aR-(1a«,8 (&,8a«* ,8bot)l •
2763-96-4 3(2H)- Isoxazolone, 5- (aminomethyl )-
61-82-5 lH-1,2.4-Triazol-3-amine
62-53-3 Benzenamine

140-57-8 Sulfurous acid, 2-chloroethyl .2- (4- (1 , 1 -dimethylethyl )phenoxy] • 1 -
methylethyl ester

7778-39-4 Arsenic acid (H- AsO^ )
1303-28-2 Arsenic oxide (ASj 
-------
fery 31, 1986
Common Name
Benz [a] anthracene .•
Benzene
Benzenearsonic acid
Benzene, dichloromethyl-
Benzenethiol
Benzidine
Benzolb] f luoranthene
Benzol j] f luoranthene
Benzo (a) pyrene
p-Benzoquinone
Benzotri chloride
Benzyl chloride
Beryllium and compounds, N.O.S.*
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl) ether
Chlornaphazine
CAS RN
56-55-3
71-43-2
98-05-5
98-87-3
108-98-5
92-87-5
205-99-2
205-82-3
50-32-8
106-51-4
98-07-7
100-44-7

111-91-1
111-44-4
494-03-1
Reason For
Systematic Name Change
Benz [a] anthracene
Benzene
Arson! c acid, phenyl • 1
Benzene, (dichloromethyl)- 3
Benzenethiol
[I.l'-Biphenyl] -4,4' -diamine
Benz [elacephenanthrylene
Benzol j] f luoranthene 5
Benzo [a] pyrene
2,5-Cyclohexadiene- 1 ,4-dione
Benzene, (trichloromethyl )- 3
Benzene, (chloromethyl ) • 3
2
Ethane, 1,1 ' • [methylenebis(oxy)]bis [2-chloro-
Ethane, 1,1'-oxybis[2-chloro-
2-Naphthalenamine, N,N-bis(2-chloroethyl )• 1,5

-------
ry 31,  1986
Common Name
Bis(2-chloroisopropyl ) ether
Bis(chloromethyl) ether
Bis(2-ethylhexyl) phthalate
Bromoacetone
Brpmomethane
4-Bromophenyl phenyl ether
Brucine
2-Butanone peroxide
Butyl benzyl phthalate
2 -sec -Butyl -4,6-dini trophenol
Cadmium and compounds, N.O.S.*
Calcium chromate
Calcium cyanide
Carbon disulfide
Carbon oxyfluoride
Chloral
CAS RN
108-60-1
542-88-1
117-81-7
598-31-2
74-83-9
101-55-3
357-57-3
1338-23-4
85-68-7
88-85-7

13765-19-0
592-01-8
75-15-0
353-50-4
75-87-6
Reason For
Systematic Name Change
Propane, 2,2' -oxybis [1 -chloro-
Hethane, oxybis [chloro- 3
1 ,2-Benzenedicarboxyl ic acid, bis(2-ethylhexyl ) ester
2-Propanone, 1-bromo- 6
Methane, bromo-
Benzene, 1 -bromo-4-phenoxy-
Strychnidin- 10-one, 2,3-diniethoxy 1
2-Butanone, peroxide 3
1 ,2-Benzenedicarboxyl ic acid, butyl phenytmethyl ester
Phenol , 2-( 1 -methylpropyl )-4.6-dini tro-
2
Chromic acid (H-CrO^), calcium salt (1:1) 4
Calcium cyanide (CaCCN)-) 4
Carbon disulfide
Carbonic difluoride 3
Acetaldehyde, trichloro- 3,6

-------
                                                             J    ry 31. 1986
   Common Name
                                              CAS RN
               Systematic Name
                                                                   Reason  For
                                                                     Change
ChlorambuciI
305-03-3       Benzenebutanoic acid, 4-[bis(2-chloroethyl)ami no]•
Chlordane
Chlorobenzilate
57-74-9        4.7-Methano-1H-indene, 1,2,4,5.6,7,8,8-octachloro-2.3,3a,4,7,7a-
                    hexahydro-
Chlorinated benzenes, N.O.S.*
Chlorinated ethane, N.O.S.*
Chlorinated f luorocarbons, N.O.S.*
Chlorinated naphthalene, N.O.S.*
Chlorinated phenol, N.O.S.*
Chloroacetaldehyde 107-20 -0 Acetaldehyde, chloro-
Chloroalkyl ethers, N.O.S.*
2
2
2
2
2
3
2
p-Chloroani 1 ine 106-47-8 Benzenamine, 4-chloro-
Chlorobenzene 108-90-7 Benzene, chloro-
510-15-6       Benzeneacetic acid, 4-chloro-o< • (4-chlorophenyl)-«(-hydroxy-,
                    ethyl ester
2-Chtoro-1,3-butadiene
126-99-8
1,3-Butadiene, 2-chloro-
p-Chloro-m-cresol
59-50-7
Phenol, 4-chloro-3-methyl•
  -Chloro-2,3-epoxypropane
106-89-8       Oxirane, (chloromethyl)•

-------
Creosote
Cresots
                                                             J     y 31,  1986
   Common Name
                                              CAS RN
               Systematic Name
                                                                   Reason  For
                                                                     Change
2-Chloroethyl vinyl ether
110-75-8       Ethene,  (2-chloroethoxy)-
Chloroform
67-66-3
Methane, trichloro-
Chloromethane
74-87-3
Methane, chloro-
Chloromethyl methyl ether
107-30-2
Methane, chloromethoxy-
2-Chloronaphthalene
91-58-7
Naphthalene, 2-chloro-
2-Chlorophenol
95-57-8
Phenol, 2-chloro-
1-(o-Chlorophenyl)thiourea
5344-82-1      Thiourea, (2-chlorophenyl )•
                                                                         1.5
3-Chloropropene
107-05-1
1-Propane, 3-chloro-
3-Chloropropioni tri le
542-76-7
Propanenitrile, 3-chloro-
Chromium and compounds, N.O.S.
Chrysene
218-01-9       Chrysene
Citrus red No. 2
635S-53-S      2-Naphthatenol, 1 -[(2,5-dimethoxyphenyl)azo]
                                                                         1,5
Coat tars
Copper cyanide
14763-77-0     Copper cyanide (Cu(CM), )

-------
                                                             J     y 31,  1986
Common Name
Crotonaldehyde
Cyanides (soluble salts and complexes),
N.O.S.*
Cyanogen
Cyanogen bromide
Cyanogen chloride
Cycasin
2-Cyclohexyl -4,6-dini trophenol
Cyclophosphamide
Daunomycin
ODD
ODE
DOT
Diallate
Reason For
CAS RN Systematic Name Change
4170-30-3 2-Butenal

2074-87-5 Cyanogen
506-68-3 Cyanogen bromide
506-77-4 Cyanogen chloride
14901-08-7 A, -0-Glucopyranoside, (methyl -OWN -azoxy)methyl
131-89-5 Phenol, 2-cyclohexyl -4,6-dini tro-
50-18-0 2H-1 ,3,2-Oxazaphosphorin-2-amine, N,N-bis(2-chloroethyl )tetrahydro- ,
2 -oxide
20830-81-3 5, 12-Naphthacenedione, 8-acetyl -10- [(3 -ami no- 2, 3, 6- trideoxy:o( -L-
lyxo-hexopyranosyl )oxy] -7,8,9, 10- tetrahydro-6,8, 11 - trihydroxy-
1-methoxy-, (8S-cis)-
72-54-8 Benzene, 1 , 1 ' • (2,2-dichloroethyl idene)bis [4-chloro-
72-55-9 Benzene, 1, 1 ' -(dichloroethenyl idene)bis [4-chloro-
50-29-3 Benzene, 1 , 1 ' -(.7,2,2- trichloroethyl idene)bis[4-chloro-

3.6
2
4
4
4
1
5
1
1



1
Oibenzta,h]acridine
226-36-8
Oibenz[a,h]acridine

-------
pry 31.  1986
Common Name
Dibenzta, jlacridine
D i benz [a, h] anthracene
7H-Dibenzo(c,g]carbazole
D i benzo [a , e] pyrene
0 i benzo [a, h] pyrene
DibenzoCa, i] pyrene
1 , 2 • 0 i bromo • 3 • ch I oropr opane
1 ,2-Dibromoethane
Dibromome thane
Di-n-butyl phthalate
o-Oichlorobenzene
m-Dichlorobenzene
p-Oichlorobenzene
Dichlorobenzene, M.O.S.*
3,3' -Dichlorobenzidine
trans-1,4-Dichloro-2-butene
CAS RN
224-42-0
53-70-3
194-59-2
192-65-4
189-64-0
189-55-9
96-12-8
106-93-4
74-95-3
84-74-2
95-50-1
541-73-1
106-46-7

91-94-1
110-57-6
Reason For
Systematic Name Change
Oibenz[a, jlacridine 5
• . . - . i -
Dibenz [a, h] anthracene
7H-Oibenzo[c,g]carbazole 5
MaphthoM ,2,3,4- def]chrysene
D i benzo tb.def Ichrysene
Benzo [rst] pent aphene
Propane, 1 ,2-dibromo-3-chloro-
Ethane, 1 ,2-dibromo-
Methane, d i bromo -
1 ,2-Benzenedicarboxyl ic acid, dibutyl ester
Benzene, 1 ,2-dichloro-
Benzene, 1 ,3-dichloro-
Benzene, 1,4-dichloro-
2
d.l'-Biphenyl] •4,4l-diamine, 3,3' -dichloro-
2-Butene, 1,4-dichloro-, (E)-

-------
                                                                 lary 31. 1986
Common Name
Dichlorodi f luoromethane
1 , 1-Oichloroethane
1 , 2-0 ichloroethane
trans- 1 ,2-Oichloroethene
Dichloroethylene, M.O.S.*
1 , 1 -Dichloroethylene
Dichloromethane
2,4-Dichlorophenol
2,6-Dichlorophenol
Reason For
CAS RN Systematic Name Change
75-71-8 Methane, dichlorodif luoro-
75-34-3 Ethane. 1, 1-dichloro-
107-06-2 Ethane, 1 ,2-dichloro-
156-60-5 Ethene, 1 ,2-dichloro- , (E)-
2
75-35-4 Ethene, 1 , 1 -dichloro-
75-09-2 Methane, dichloro-
120-83-2 Phenol, 2,4-dichloro-
87-65-0 Phenol, 2,6-dichloro-
2,4-Oichlorophenoxyacetic acid  (2,4-0),
    salts and esters
Dichlorophenylarsine
696-28-6       Arsonous dichloride, phenyl-
                                                                         5,7
Oichloropropane, N.O.S.'
.1,2 -Oichloropropane
78-87-5
Propane, 1,2-dichloro-
Oichloropropanol, N.O.S.'
Oichloropropene, N.O.S.*
                                                                     10

-------
                                                                 >ry 31, 1986
Common Name
1 , 3 • D i ch I oropropene
Oieldrin


1 , 2:3,4 -Oiepoxybutane
Diethylarsine
N,N -Diethyl hydrazine
0,0-Oiethyl S-methyl ester of phosphoro-
dithioic acid
0,0-Diethylphosphoric acid, 0-p-nitro-
phenyl ester
Oiethyl phthalate
0,0-Diethyl 0-2-pyrazinyl phosphoroth-
ioate
Oiethylsti Ibesterol
Dihydrosaf role
3,4-Dihydroxy-alpha-(methylamino)methyl
benzyl alcohol
CAS RN Systematic Name

60-57-1 2,7:3,6-Oimethanonaphth(2,3-b]oxirene, 3,4,5,6,9,9-hexachloro- la,

7aoO-
1464-53-5 2,2'-Bioxirane
692-42-2 Arsine, diethyl-
616-40-0 Hydrazine, 1,1-diethyl-
3288-58-2 Phosphorodi thioic acid, 0,0-diethyl S-methyl ester
311-45-5 Phosphoric acid, diethyl 4-ni trophenyl ester
84-66-2 1 ,2-Benzenedicarboxyl ic acid, diethyl ester
297-97-2 Phosphorothioic acid, 0,0-diethyl 0-pyrazinyl ester
56-53-1 Phenol, 4,4' -{1 ,2-diethyl - 1,2-ethenediyl )bis- , 
-------
                                                                 ary 31, 1986
Common Name
0 imethoate
3,3' -Dimethoxybenzidine
p-Dimethylaminoazobenzene
7, 12-D imethyl benz [a] anthracene
3,3' -Dimethylbenzidine
Dimethylcarbamoyl chloride
1, 1-0 i methyl hydrazine
1 ,2-Dimethylhydrazine
CAS RN
60-51-5
119-90-4
60 • 1 1 - 7
57-97-6
119-93-7
79-44-7
57-14-7
540-73-8
Systematic Name
Phosphorodi thioic acid, 0,0-dimethyl S- [2- (methylamino)-2-
ester
[1,1' -Biphenyl] -4,4' -diamine, 3,3' -dimethoxy
Benzenamine, N,N-di methyl -4- (phenylazo)-
Benz [a] anthracene, 7, 12 -dimethyl -
[1,1 '-Biphenyl] -4,4 '-diamine, 3.3' -dimethyl •
Carbamic chloride, dimethyl-
Hydrazine, 1, 1 -dimethyl •
Hydrazine, 1,2-dimethyl -
Reason For
Change
oxoethyl] 3




3
3.6
3,6
3,3-Diitiethyl-1-(methylthio)-2:butanone, 0-    39196-18-4     2-Butanone, 3,3-dimethyl•1-(methylthio)-, 0-[(methylamino)carbonyl]
    [(methylamino) carbonylloxime                                 oxime
alpha.alpha-Dimethytphenethylamine
122-09-8       Benzeneethanamine, O<,ot-dimethyl•
2,4-Oimethylphenol
105-67-9
Phenol, 2,4-dimethyl-
Oimethyl phthalate
131-11-3       1,2-Benzenedicarboxylic acid, dimethyl ester
Dimethyl sulfate
77-78-1
Sulfuric acid, dimethyl ester
Oinitrobenzene, N.O.S.*
4,6-Dinitro-o-cresol and salts
                                                                     12

-------
                                                                   rv  31,  1986
Common Name
2,4-Dini trophenol
2,4-Dinitrotoluene
2,6-Dini trotoluene
Di-n-octyl phthalate
1 , 4-D ioxane
D iphenylamine
1 ,2-Oiphenylhydrazine
Di -n-propylni trosamine
Disulfoton
2,4-Di thiobiuret
Endosulfan
Endrin and metabolites
Ethyl carbamate
Ethyl cyanide
CAS RN Systematic Name
51-28-5 Phenol. 2.4-dinitro-
121-14-2 Benzene, 1 -methyl -2. 4-dinitro-
606-20-2 Benzene, 2-methyl - 1 ,3-dini tro-
117-84-0 1 ,2-Benzenedicarboxyl ic acid, dioctyl ester
123-91-1 1,4-Dioxane
122-39-4 Benzenamine, H-phenyl-
122-66-7 Hydrazine, 1,2-diphenyl -
621-64-7 1-Propanamine, N-ni troso-N-propyl •
298-04-4 Phosphorodi thioic acid, 0,0-diethyl S- [2- (ethyl thio)ethyl] ester
541-53-7 Thioimidodicarbonic diamide ( [
-------
iry 31,  1986
Common Name
Ethyleneimine
Ethylene oxide
Ethylenethiourea
Ethyl methacrylate
Ethyl methanesul fonate
Fluoranthene
F I uor i ne
2- Fluoroacetamide
Fluoroacetic acid, sodium salt
Formaldehyde
Formic acid
Gtycidylaldehyde
Halomethane, N.O.S.*
Heptachlor

Heptachlor epoxide

CAS RN
151-56-4
75-21-8
96-45-7
97-63-2
62-50-0
206-44-0
7782-41-4
640-19-7
62-74-8
50-00-0
64-18-6
765-34-4

76-44-8

1024-57-3

Reason For
Systematic Name Change
Aziridine 1,3,5
Oxirane !
2-imidazol idinethione 1
2-Propenoic acid, 2-methyl-, ethyl ester
Methanesul fonic acid, ethyl ester 3
Fluoranthene
Fluorine 3,6
Acetamide, 2-fluoro- 1
Acetic acid, fluoro-, sodium salt 6
Formaldehyde 6
Formic acid 1
Oxiranecarboxaldehyde 3,6
2
4,7-Hethano-1H- indene, 1 ,4,5,6, 7,8,8-heptachloro-3a,4,7,7a- tetra-
hydro-
2,5-Methano-2H- indenotl, 2- b] ox i rene, 2,3,4,5,6, 7, 7- heptach 1 oro- la,

    14

-------
larv 31,  1986
Common Name
Hexach lorobenzene
Hexachlorobutadiene

Hexach lor ocyc tohexane
Hexach lor ocyc 1 open tad iene
Hexachlorodibenzo-p-dioxins
Hexach I orodibenzofurans
Hexachloroethane
Isodrin


Hexachlorophene
Hexachloropropene
Hexaethyl tetraphosphate
Hydrazine
Hydrocyanic acid
Hydrofluoric acid
Reason For
CAS RN Systematic Name Change
118-74-1 Benzene, hexachloro-
87-68-3 1,3-Butadiene, 1 , 1 ,2.3, 4, 4-hexachloro-

2
77-47-4 1 ,3-Cyctopentadiene, 1 ,2,3,4,5,5-hexachloro-


67-72-1 Ethane, hexachloro-
465-73-6 1,4:5,8-0imethanonaphthalene, 1,2,3,4, 10, 10-hexachloro- 1,4,4a,5,8,


70-30-4 Phenol, 2,2' -methylenebis(3,4,6- trichloro-
1888-71-7 1-Propene, 1 , 1 ,2.3.3, 3-hexachloro-
757-58-4 Tetraphosphoric acid, hexaethyl ester 1,3,5
302-01-2 Hydrazine 6
74-90-8 Hydrocyanic acid 4
7664-39-3 Hydrofluoric acid 4
     15

-------
J    ,ry 31. 1986
Common Name
Hydrogen sulfide
Hydroxydimethylarsine oxide
lndeno(1,2,3-cd)pyrene
lodome thane
Iron dextran
Isocyanic acid, methyl ester
Isobutyl alcohol
Isosafrole
Kepone
Lasiocarpine
Lead and compounds, N.O.S.*
Lead acetate
Lead phosphate
Lead subacetate
Mateic anhydride
Reason For
CAS RN Systematic Name Change
7783-06-4 Hydrogen sulfide ,7<2S*,3R*>.7aot]] -



1335-32-6 Lead, bis(acetato-0)tetrahydroxytrt •
108-31-6 2,5-Furandione
4
1,7


7
3



1.5
2
4
4
7
3
        16

-------
 3i.  1986
Common Name
Haleic hydrazide
Malononi tri le
Melphalan
Mercury fulminate
Mercury and compounds, N.O.S.*
Methacryloni tri le
Methanethiol
Reason For
CAS RN Systematic Name Change
123-33-1 3.6-Pyridazinedione, 1,2-dihydro- 1
109-77-3 Propanedinitri le
1,6
628-86-4 Fulminic acid, mercury(2+) salt 5,7
2
126-98-7 2-Propenenitri le, 2-methyl-
74-93-1 Methanethiol 6
Hethapyri lene
Methomyl
Methoxychlor
2-Methylaziridine
3-Methylcholanthrene
Methyl ch lorocarbonate
4.4' -Methylenebis(2-chloroani I ine)
Methyl ethyl ketone
Methyl hydrazine
167S2-77-S Ethanimidothioic acid, N- [ [(methylamino)carbonyl] oxy] • , methyl ester 1
72-43-5 Benzene, 1,1 ' -(2,2,2- tri chloroethyl idene)bis [4-methoxy-
75-55-8 Aziridine, 2-methyl- 1
56-49-5 Benz [jjaceanthrylene, 1 ,2-dihydro-3-methyl •
79-22-1 Carbonochloridic acid, methyl ester
101-14-4 Benzenamine, 4,4' -methylenebis t2-chloro-
78-93-3 2-Butanone
60-34-4 Hydrazine, methyl- 3,6
17

-------
January 31,  1986
Common Name
2-Methyl lactoni tri le
Methyl methacrytate
Methyl methanesul fonate
Aldicarb
N-Methyl-N'-nitro-N-ni trosoguanidine
Methyl parathion
Methyl thiouraci I
Mustard gas
Naphthalene
1 ,4-Naphthoquinone
1-Naphthylamine
2-Naphthylamine
1-Naphthy I -2- thiourea
Nickel and compounds, N.O.S.*
Nickel carbonyl
Nickel cyanide
CAS RN
75-86-5
80-62-6
66-27-3
116-06-3
70-25-7
298-00-0
56-04-2
505-60-2
91-20-3
130-15-4
134-32-7
91-59-8
86-88-4

13463-39-3
557-19-7
Reason For
Systematic Name Change
Propaneni tri le, 2-hydroxy-2-methyl - 3,6
2-Propenoic acid, 2-methyl-, methyl ester
Methanesulfonic acid, methyl ester
Propanal, 2-methyl -2- (methyl thio)- , 0- [(methylaniino)carbonyl Joxime 1
Guanidine, N-methyl -N > -ni tro-N-ni troso- 1
Phosphorothioic acid, 0,0-dimethyl 0- (4-ni trophenyt ) ester
4(1H)-Pyrimidinone, 2,3-dihydro-6-methyl -2- thioxo 1
Ethane, 1 , 1 ' - thiobis [2-chloro- 3,6
Naphthalene
1 ,4-Naphthalenedione
1 -Naphthalenamine
2 - Naph tha I enami ne
Thiourea, 1 -naphtha teny I - 1
2
Nickel carbonyl (Ni(CO)^.), (T-4)- 7
Nickel cyanide (Ni(CN)9 ) 4

-------
                                                                jiary 31. 1986
   Common Name
                                              CAS RN
               Systematic Name
                                                                   Reason For
                                                                     Change
Nicotine and salts
                                                                                        1.2
Nitric oxide
10102-43-9     Nitrogen oxide (NO)
p-Nitroani(ine
100-01-6       Benzenamine,  4-nitro-
Ni trobenzene
98 95-3
Benzene, nitro-
Nitrogen dioxide
10102-44-0
Nitrogen oxide (NO, )
Nitrogen mustard and hydrochtoride salt
Nitrogen mustard N-Oxide and hydrochtoride
    salt
Nitroglycerine
4-Ni trophenol
4-Ni troquinol ine-1 -oxide
Ni trosamine.N.O.S.*
N-Ni trosodi -n-butylamine
N-Ni trosodiethanotamine
N-Ni trosodi ethyl amine
55-63-0 1,2,3-Propanetriol, trinitrate
100-02-7 Phenol, 4-nitro-
56-57-5 Quinoline, 4-nitro-, 1-oxide

924-16-3 1-Butanamine, N-butyl -N-ni troso-
1116-54-7 Ethanol, 2,2' • (ni trosoimino)bis-
55-18-5 Ethanamine, N-ethyl -N-ni troso-
1

1
2

6

N-Ni trosodimethyI amine
62-75-9
Methanamine, N-methyl-N-ni troso-
                                                                    19

-------
luary 31.  1986
Common Name
N-Ni troso- N-ethylurea
N-Ni trosomethylethylamine
N-N i troso-N-methylurea
N-Ni troso-N -me thy lure thane
N-Ni trosomethyl vinylamine
N-Ni trosomorphol ine
N-Ni trosonornico tine
N-Ni trosopi peri dine
N-Nitrosopyrrol idine
N-Ni trososarcosine
5-Ni tro-o- toluidine
Oc t amethy 1 pyrophosphorami de
Osmium tetroxide
Endothal
Paratdehyde
Parathion
CAS RN
759-73-9
10595-95-6
684-93-5
615-53-2
4549-40-0
59-89-2
16543-55-8
100-75-4
930-55-2
13256-22-9
99-55-8
152-16-9
20816-12-0

123-63-7
56-38-2
Reason For
Systematic Name Change
Urea, N-ethyl -N-ni troso- 1
Ethanamine, N-methyl -N-ni troso-
Urea, N-methyl -N-ni troso- 1
Carbamic acid, methylni troso- , ethyl ester 6
Ethenamine, N-methyl -N-ni troso- . 1,5
Morpholine, 4-nitroso-
Pyridine, 3- ( 1 -ni troso-2-pyrrol idinyl )- , (S)- 5
Piperidine, 1-nitroso-
Pyrrolidine, 1-nitroso-
Glycine, N-methyl -N-ni troso- 1,5
Benzenamine, 2-methyl -5-ni tro-
Diphosphoramide, octamethyl- 1,5
Osmium oxide (OsO^.), (T-4)- 4
1
1,3,5-Trioxane, 2,4,6- trimethyl - 3
Phosphoroth ioic acid, 0,0-diethyl 0- (4-ni trophenyl ) ester
     20

-------
pry 31, 1986
Common Name
Pent ach I orobenzene
CAS RN
608-93-5
Systematic Name
Benzene, pentachloro-
Reason For
Change

Pentachlorodibenzo-p-dioxins
Pentach lorodi benzof urans
Pentachloroethane
Pentachloroni trobenzene
Pentachlorophenol
Phenacetin
Phenol
Phenylenediamine
Phenylmercury acetate
N-Phenyl thiourea
Phosgene
Phosphine
Phorate
Famphur
76-01-7
82-68-8
87-86-5
62-44-2
108-95-2
25265-76-3
62-38-4
103-85-5
75-44-5
7803 - 5 1 - 2
298-02-2
52-85-7
Ethane, pentachloro-
Benzene, pentachloroni tro-
Phenol, pentachloro-
Acetamide, N-(4-ethoxyphenyl )-
Phenol
Benzenediamine
Mercury, (acetato-O)phenyl -
Thiourea, phenyl-
Carbonic dichloride
Phosphine
Phosphorodi thioic acid, 0,0-diethyl S- [(ethyl thio)methytj ester
Phosphorothioic acid, 0- t4- [(dimethy lamino)sul f onyUphenyll





1
7
1
3
6


 0,0-dimethyl ester
   21

-------
                                                                 ary  31,  1986
Common Name
Phthalic acid esters, N.O.S.*
Phthalic anhydride
2- Pi col ine
Potychlor inated biphenyl, N.O.S.*
Potassium cyanide
Potassium silver cyanide
Pronamide
1,3 -Propane sultone
n-Propylamine
Propylthiouraci I
2-Propyn- l-ol
Pyridine
Reserpine
Resorcinol
Reason For
CAS RN Systematic Name Change
2
85-44-9 1,3- Isobenzofurandione 3
109-06-8 Pyridine, 2-methyl-
2
151-50-8 Potassium cyanide (K(C:i)) 4
506-61-6 Argentate( 1 - ), bis(cyano-C)- , potassium 4
23950-58-5 Benzamide, 3. 5-dichloro-N- (1 . 1 -dimethyl -2-propynyl )-
1120-71-4 1,2-Oxathiolane, 2,2-dioxide 1,3
107-10-8 1 -Propanamine 6
51-52-5 4(lH)-Pyrimidinone, 2,3-dihydro-6-propyl -2- thioxo- 1
107-19-7 2-Propyn-l-ol
110-86-1 Pyridine
50-55-5 Yohimban-16-carboxytic acid, 11, 17-dimethoxy- 18- [(3,4,5- trimethoxy- 1
benzoyOoxy]-, methyl ester, <3£ , 16£ , ITrt , 18£ ,2QeH )-
108-46-3 1,3-Benzenediol
Saccharin and salts
2,6
                                                                    22

-------
                                                                uary 31, 1986
   Common Name
                                              CAS RN
               Systematic Name
                                                                  Reason For
                                                                    Change
Safrole
94-59-7
1,3-Benzodioxole,  5-(2-propenyl)-
Selenious acid
7783-00-8      Setenious acid
Selenium and compounds, N.O.S.1
Selenium sulfide
56093-45-9     Selenium sulfide
Selenourea
630-10-4
Selenourea
1,7
Silver and compounds, N.O.S.*
Silver cyanide
506-64-9       Silver cyanide (Ag(CN))
Sodium cyanide
143-33-9
Sodium cyanide (Na(CN))
Streptozotocin
18883-66-4     D-Glucose, 2-deoxy-2-[[(methyInitrosoamino)carbonyl]amino] •
Strontium sulfide
1314-96-1      Strontium sulfide (SrS)
Strychnine and salts
                                                                                        1.2
1,2,4,5-Tetrachlorobenzene
95-94-3
Benzene, 1,2,4,5-tetrachloro-
2,3,7,8-Tetrachlorodibenzo-p-dioxin
1746-01-6      Oibenzo[b,e](1,4)dioxin, 2,3,7,8-tetrachloro-
Tetrachlorodibenzo-p-dioxins
Tetrachtorodibenzofurans
Tetrachloroethane, N.O S.*
                                                                    23

-------
lary  31,  1986
Common Name
1,1, 1,2-Tetrachloroethane
1 ,1 ,2,2- Tetrachloroe thane
Tetrachloroethene
Carbon tetrachloride
2,3,4,6-Tetrachlorophenol
Tetraethyldi thi opyrophosphate
Tetraethyl lead
letraethylpyrophosphate
Tetrani trome thane
Thallium and compounds, N.O.S.*
Thai lie oxide
Thai 1 ium ( 1 ) acetate
Thallium (1) carbonate
Thai 1 ium (I ) chloride
Thallium (1) nitrate
Thai I ium seleni te
CAS RN
630-20-6
79-34-5
127-18-4
56-23-5
58-90-2
3689-24-5
78-00-2
107-49-3
509-14-8

1314-32-5
563-68-8
29809-42-5
7791-12-0
10102-45-1
12039-52-0
Systematic Name
Ethane, 1 , 1 . 1 ,2- tetrachloro-
Ethane, 1 , 1 ,2,2- tetrachloro-
Ethene, tetrachloro-
Methane, tetrachloro-
Phenol, 2,3,4,6- tetrachloro-
Thiodiphosphoric acid ( [(HO)* P(S)] ~ 0), tetraethyl ester
Plumbane, tetraethyl -
Di phosphoric acid, tetraethyl ester
Methane, tetranitro-

Thallium oxide (Tl.Oq)
Acetic acid, thallium(U) salt
Carbonic acid, thai 1 ium(1 + ) salt
Thallium chloride (TICl)
Nitric acid, thallium(U) salt
Thallium selenide (TISe)
Reason For
Change






7
3
3
2
4
4
4
4
4
4
    24

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jary 31,  1986
Common Name
Thai I ium (I ) sulfate
Thioacetamide
Th iosemicarbaz ide
Thiourea
Thiuram
Toluene
Toluenediamine
o-Toluidine hydrochtor ide
Toluene diisocyanate
Toxaphene
Tr ibromome thane
1,2,4- Tr ichlorobenzene
1,1, 1-Trichloroe thane
1 , 1 ,2-Trichloroethane
Tr i chloroethene
Trichloromethanethiol
Reason For
CAS RN Systematic Name Change
7446-18-6 Sulfuric acid, di thai 1 ium(1 + ) salt 4
62-55-5 Ethanethioamide 1,3
79-19-6 Hydrazinecarbothioamide , 1
62-56-6 Thiourea 1
137-26-8 Thioperoxydicarbonic diamide ( [(H^ N)C(S)]« S j_) , tetramethyl - 6
108-88-3 Benzene, methyl -
1.2
636-21-5 Benzenamine, 2-methyl-, hydrochloride 6
3
8001-35-2 Toxaphene
75-25-2 Methane, tribromo-
120-82-1 Benzene, 1 ,2,4- trichloro-
71-55-6 Ethane, 1 , 1 , 1- trichloro-
79-00-5 Ethane, 1 , 1 ,2- trichloro-
79-01-6 Ethene, trichloro-
75-70-7 Methanethiol, trichloro-
    25

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                                                                 fary 31. 1986
Common Name
T r i ch I oromonof luoromethane
2,4,5-Trichl oropheno I
2,4,6-Trichlorophenot
2.4.5-T
Si I vex
Trichloropropane, N.O.S.*
1 ,2,3- Trichloropropane
0,0,0-Triethyl phosphorothioate
sym-Trini trobenzene
Tris(1 -aziridinyl ) phosphine sulfide
Tris(2,3-dibromopropyl ) phosphate
Trypan blue
Uracil mustard
Vanadic acid, ammonium salt
Reason For
CAS RN Systematic Name Change
75-69-4 Methane, trichlorof luoro-
95-95-4 Phenol, 2,4,5- trichloro-
88-06-2 Phenol, 2,4,6- trichloro-
93-76-5 Ac'etic acid, (2,4,5- trichlorophenoxy)-
93-72-1 Propanoic acid, 2- (2,4,5- trichlorophenoxy)-

96-18-4 Propane, 1 .2,3- trichloro-
126-68-1 ' Phosphorothioic acid, 0,0,0- triethyl ester
99-35-4 Benzene, 1 ,3,5- trini tro-
52-24-4 Aziridine, 1 , 1 ' , 1 • ' -phosphinothi oyl idynetris-
126-72-7 1-Propanol, 2,3-dibromo- , phosphate (3:1)
72-57-1 2,7-Naphthalenedisultonic acid, 3,3' - [(3,3' -dimethyl [1 , 1 ' -biphenyl) •
4,4* -diyl )bis(azo)]bis[5-amino-4-hydroxy-, tetrasodium salt
66-75-1 2,4(lH,3H)-Pyrimidinedione, 5- [bis(2-chloroethyl ) ami no] -






2

5
6
5

1
5
4
Vanadium pentoxide
1314-62-1
Vanadium oxide
                                                                    26

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                                                                 lary 31, 1986
                                                                                                                                Reason For
   Common Name                                CAS RN         Systematic Name                                                      Change


Vinyl chloride                                75-01-4        Ethene, chloro-


Zinc cyanide                                  557-21-1       Zinc cyanide (Zn(CN)~)                                                  4


Zinc phosphide                                                                                                                        3

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