&5WFR-87-011
Thursday
July 9, 1987
Part II
* .
Environmental
Protection Agency
40 CFR Parts 264 and 270
List (Phase 1) of Hazardous Constituents
for Ground-Water Monitoring; Final Rule
-------
< f«M
va?#;.fc *;.*'<
/ Vol. 52. Nc. 1.51 / Thursday, July 9, 1087 / Rules and Regulations
i JUMgNTTAH PROTECTION
40 <-,*a Fasts* 7.S4 and 270
[FSL is 199-3]
Us* (Phase 1) of Hazardous
Constituents for Ground-Water
Monitoring
AGENCY: U.S. Environmental Protection
Agency.
ACTION; Final rule. _
SUMMARY: The Environmental Protection
Agency is today amending its
regulations concerning gound-water
monitoring with regard to screening
suspected contamination at land based
hazardous waste treatment, storage, and
disposal facilities. The amendments
-«place current requirements to analyze
for all Appendix VIE constituents with
new requirements to analyze for a
specified core list of chemicals plus
those chemicals specified by the
Regional Administrator on a site-
specific basis. The Agency proposed
today's amendments on July 24. 1986.
DATES: These- final regulations- become
effective on September 28, 1987 which is
six months from the date of
promulgation, as RCRA Section 3010(b)
requires.
ADDRESSES: The official record for this
rulemaking (Docket No. F-87-AX9F-
FFFFF] is located in the RoomMLClDO,
U.S. Environmental Protection. Agency,
)1M Street SW.. Washington. DC '
£0460, and Is available for viewing from
3:00 a.m. to 4:00 p-.rnw Monday tlirough
Friday, excluding legal holidays. Call
{202) 475-9327 for appointments. The
public may copy a maximum of 50 pages
3 f material from any one regulatory
docket at no cost Additional copies cost
$.20/page.
FCR FURTHER INFORMATION CONTACT:
For general information about this
rulemaking contact the RCRA Hotline,
Office of Solid Waste (WH-562). U.S.''
Environmental Protection Agency, 401 M
Street, SW., Washington. DC 20460 (800)
424-9346 (toll free) or (202) 382-3000 in
the Washington, D.C. metropolitan area.
For information on specific aspects of -
this rule contact: Jerry R. Carman, Office
of Solid Waste (WHr-seSE), U.S.
Environmental Protection Agency, 401 M
Street, SW.. Washington, DC 20460 (202)
382-4658.
33. Origin of Today's Pica! Ru!e
IV. issue* Diseuaae-i in Proposed Rale
A. Borderline Chemicals
B. Dioxia
C. Ground-Water Chemistry
D. Discretionary Additions
E. Ordering of Appendix IX
F. Representatives of Categories
V. Analytical Methods
VI. Nature of List
VII. State Authority
A. Applicability of Rules in Authorized '
States
B. Effect on State Authorization
VIII. Effective Date
IX. Executive Order No. 12291 and Regulatory
Impact Analysis
X. Regulatory Flexibility Act
XL Supporting Documents
XIL List of Subjects in 40 CFR Part 264 and
270
SUPPLEMENTARY INFORMATION:
Preamble Outline
L Authority
tt. Summary of Today's Final Rule
HI. Background
A. Regulatory Framework
L Authority
These regulations are being
promulgated under the authority of
Sections 2002(a). 3001,3004, and 3005 of
the Solid Waste Disposal Act, as
amended. 42 U.S.C. 6912,6921.6924. and
6925 (commonly referred to as RCRA).
II. Summary of Today's Final Rule
Today's rule creates a new list of.
analytes for RCRA: Appendix IX to 4Q-
CFR Part 264. This list is required only .-.
for ground-water monitoring at RCRA ~
land based hazardous waste disposal
units. This final rule, in concert with the
regulations already in place, will require
that an analysts of aU the constituents fn'
Appendix DC to Part264 be performed...
OB the ground water taken from weQs _
surrounding those units. This analysis
takes place when ground-water
contamination is first detected, and men
again once per year (see 40 CFR Part
264.SubpaxtF).
liL Background
A Regulatory Framework ' ...
Subtitle C of the Resource
Conservation and Recovery Act of 1978
(RCRA) creates a comprehensive
program for the safe management of
hazardous waste. Section 3004 of RCRA
requires owners and operators of
facilities that treat, store, or dispose of
hazardous waste to comply with .
standards established by EPA that are
"necessary to protect human health.and...
the environment;" Section 3005 provides
that owners and operators of certain
facilities that apply for a permit and
comply with applicable notice
""requirements may operate until a permit
determination is made. Facilities in this
category are said to be operating under
"interim'status". Owners and operators
of interim status facilities also must
comply with standards set under Section
3004.
SPA promulgated standards for
protecting ground water from releases of
hazardous wastes from treatment,
storage, and disposal units at interim
status facilities in 1980 [45 FR 33154
(May 19,1980)). codified in 40 CFR Part
265, Subpart F, and permitted facilities
in 1982 (47 FR 32274 (July 23.1982)),
codified in 40 CFR Part 264. Subpart F.
Both programs require owners and
operators to sample ground water at "*
specified intervals to determine whether
or not hazardous wastes or constituents
from the facility are contaminating
ground water. As explained in more
detail below, these sampling procedures
have generated criticism.
The regulations promulgated on May
19,1980 set forth criteria for identifying
"hazardous" waste. To assist in this
identification process. EPA developed a
list of chemicals". . . . that have been
shown in reputable scientific studies to
have toxic, carcinogenic, mutagenic, or
teratogenic effects on humans or other
life forms . . . ." (45 FR 33107, May 19,
198GJ~This list was published as
Appendix VIII to Part 261 of the
regulations.
. The Appendix VIII list is actually a
'composite of several other lists. It
includes chemicals identified as priority
pollutants under the Clean Water Act.
chemicals identified by the Department
of Tnnsportation as hazardous to
. transport, chemicals for which EPA's
Carcinogen Assessment Group (CAG)
-ha» Faboratory evidence of ;
carcinogenicity, and chemicals which
theNIOSH Registry of Toxic Effects of
Chemical Substances lists as having
high acute toxicity (numerically low
LD»J.
The principal purpose of the list is to
define a universe of chemicals of
concern. Wastes would be matched
against the list to see if they contained
any chemicals from this universe. If so.
they would be considered for listing as
"hazardous".
Appendix VIII deliberately included
many/listings that are large categories of
chemicals. Chemicals were listed on
Appendix VIII as they would exist in a
pure state, as opposed to the forms they
would be expected to take after being -
. dispersed in the environment. For waste
identification purposes these
characteristics of Appendix VIII may
not present a problem. In looking for
hazardous waste, EPA emphasized
breadth of coverage. No attempt was
made to examine factors such as
amount of production or environmental
fate in compiling Appendix VIII.
although the hazardous waste listing
regulations require EPA to consider such
factors before listing a waste because it
-------
Federal Register / Vol. 52, Kw. 135 / T^rsda^, juiy 9, -198? / Rales aisd Regulations 25§i3
contains an Appendix ₯111 ahessica! (see
40 CFR 2Sl.ll(a')(3j). As & result,
Appendix VII! contains both prevalent,
r.:ebile, and toxic chemicals that present
major risks in ground water at
hazardous waste sites {e.g.,
triehloroethylene), as well as chemicals
which do not present such risks (e.g.,
aflatoxins) because of factors such as
low prevalence or instability in water.
Qn Juiy 26,1982, EPA promulgated
RCRA regulations that implemented a
strategy for ground-water protection for
land-based hazardous waste
management units operating under
RCRA permits. Ones ground-water
contamination is suspected, the strategy
requires an analysis to determine the
nature of the contamination. This -
information is used to assess the
problem, determine the appropriate ';.
remedy, determine when the remedy "is-
effective, and insure that no new
problems arise during the time the '.
remedy is being applied. In an attempt
to be comprehensive, the regulations
required that contaminated ground.. -.
water be analyzed for all constituents
contained in Appendix Vffl to Part 281.
While appropriate for hazardous .-.- .
waste listing purposes, the Appendix , -
VIII list has presented a number of 7
problems when used for purposes of ".".'
ground-water monitoring. These include
practical analytical problems such as ",. *
listings which are large categories of _*; -.'
chemicals, the dissociation or acjpal -~
decomposition of many Appendix VTTI
constituents when placed in water, and
the lack of analytical standards or
analytical screening methods for many
constituents. '- - - '. - /-."'. -
EPA .has been aware of potential
analytical problems with "Appendix
VIII analysis" for some time. At the tune
of promulgation of the. 1982 regulations,.
EPA acknowledged that it lacked
analytical methods for nine of the
Appendix VIII constituents {see 47 FR
32296, July 26,1982). When owners and
operators of hazardous waste facilities
began to attempt Appendix VIE
analyses,:however, EPA teamed that
analysis would be extremely difficult or
impossible for a larger number 'of
constituents. '-
EPA took several actions intended to
mitigate the problems. For example, EPA
recommended the use of enforcement
discretion for some of the most - -
intractable problems it had identified at
the time. .Also, in 1984.- EPA proposed to
eliminate 22 Appendix VIII constituents
from the ground-water-analysis
requirements (see 49 FR 38786, October
1,1984). .
Comments on the October 1984
proposal raised questions about a - .
number of additional analytical....
problems. Also, EPA gathered further
information from interactions between
RCRA permitting authorities, RCRA" ?
facility owners and operators, and
analytical laboratories. SPA's owa
experience with grasmd-water analyses
for its ground-water monitoring task
force and its analytical methods
development work confirmed many of
. these problems. These experiences"**
demonstrated to EP&tsiaf analytical
problems with Appeadix Vffl were far
more serious than previously believed. It
became dear that a major change was'
required.
ft Origin of Today's Final Rule.
In response to this need. EPA...
convened a meeting on December 10-13,
1985. of some 30 technical experts
representing EPA and State offices and
laboratories. Many of these experts had
advanced degrees in chemistry aad/qr
substantial laboratory experience. Over
four days, they evaluated all of
Appendix VIII with regard to the
feasibility of analysis of the various .
constituents. They identified a list of
specific chemicals, derived from :.-.-- .
Appendix VUL which they considered -
generally suitable for ground-water -
analyses at afl facilities. They .: '-:'
recommended that 25 chemicals,
routinely analyzed in ground water by
the Superfund office, be added to the list
for analysis. "'.'". ..',',. , - "
. The results of this meeting, and
subsequent work by the Agency, were
summarized in a Notice of Proposed,
Rulemaking on July 24,1986 (see 40 CFR
26632). Today, EPA is finalizing that .
proposal. The reasoning behind, the final
rule is the same as that discussed In the
proposal. Appendix IX to Part 264 is
made up of those compounds on
Appendix VDI to Part 261 for which it is
feasible to analyze in ground-water
samples, plus 17 chemicals routinely
monitored in the Superfund program.
Fifteen of the 17 chemical entities
included from the Superfund program
are organic chemicals, the other 2 (tin
and cobalt) are metals. These 17 exhibit
varying, but significant, degrees of
toxicity. All of them have the potential
to adversely effect human health or the
environment, and are therefore of value
for monitoring at RCRA facilities. The
docket for this rulemaking contains
information, or references to publicly
available information, that demonstrates
the toxic or hazardous potential of these
Superfund additions.
One of the Superfund compounds
(benzoic acid) which was on the
proposed Appendix IX is not on the final
Appendix IX because there is currently
no acceptable screening method for it-
Benzoic acid requires a derivatization
before ii will yield itself to gas
chromotographic analysis. The Test of
the Superftmd additions to Appendix IX
are readily aasenable to analysis.
The other 7 Superfund items that were
a par* of the proposed Appendix IX and
are not a part of the final Appendix, are
relatively noa-toxic inorganics. These
are addressed below under "Ground-
Water Chemistry", "" '
The majority of the data evaluated for
this rule are contained in background
documents for the July 24,1986, ~
Proposed Rulemaking. However, during
the public comment period of this -
proposed rulemaking, EPA received
more data concerning the feasibility of
analyzing certain Appendix VIII
constituents in ground water. This 'data
was evaluated on December 11,1988, at
a meeting of analytical experts. A list of
the attendees of this meeting, the new "
data received by EPA since the
proposal, and the group's decision
concerning the feasibility of analysis,
are contained in background .
documentation for this rale.
IV. Issues Discussed in Proposed Rule " -
in addition to solicitaiing comment on
EPA's overall approach, the July 24,1986
Notice of Proposed Rulemaking, raised
six specific issues for comment The .
following is a brief descriptioa of these
issues, the comments received on -each, .
aad the Agency's response to those ' -
'comments.
A. Borderline Chemicals - . 7' ; .
In the July 24.1986 proposal EPA> :."
listed 48 chemicals for which the ..--;..
Agency had conflicting data pertaining
to their analytical feasibility. A few..." .
coramentors supplied new data or an '
opinion about these compounds. The
new data was evaluated at the
aforementioned December 11,1988 -
meeting of analytical experts. A
decision was made as to whether or not
each chemical belonged on the final..
Appendix IX based on the criteria.
discussed in the proposal (see 51 FR
26835-36). In sum. five of the compounds
not on the proposed Appendix IX, but
listed as borderline, have been added to
the final Appendix IX because it was
determined that they were amendable to
the analytical screening methodologies.
Likewise, thirteen of the borderline
. chemicals that were on the proposed
. Appendix IX have been removed from"
the final list because new data had
demonstrated that they were not
suitable for screening analysis. The
background documentation for this final '
rule elaborates upon those-decisions.
-------
Federa1 Register / Vol. 52, No. 131 / Thursday, July 9. 1987 /Rules
B, Dioxin
Although, the proposed Appendix IX
contained polychlorinated dibenzo-p-
i.,,:xm3. the proposed rulemaking
^.jstioned whether requiring the
,; ;tlysis of these dioxins presents a
human health or environmental risk in
Haelf. Several of the comments EPA
received during the public comment
,-ji.uit agreed that requiring these
analyses did pose a threat to human
health or the environment However,
none of the commentors supplied any
new data concerning this issue.
Therefore, given that dioxin analyses
t.re currently performed in a number of
laboratories with seemingly little
adverse effects, and that numerous other
""ghly toxic chemicals are commonly
vorked within laboratories, the Agency
has concluded that requiring dioxin
analysis probably does not constitute a .
significant envronmental hazard in
tself. Therefore, since it is feasible to
:,ialyze for these dioxins in ground
.vater, they remain on Appendix DC It
should also be noted that many '
commentors thought that dioxins should
.iot be on Appendix IX because they are
rarely, if ever, found in ground water.
C. Ground-Water Chemistry
In the July 24,1988 proposal, EPA'
discussed the presence of some
constituents on the proposed Appendix
JX lltat were generally non-toxic- These
hemical species were either derived
from Appendix Vffl (e.g^ sodium from.
sodium cyanide) or were part of the
Superfund additions. The Agency
proposed to include thesespecies on
Appendix DC because their analyses
TOV ides information on ground-water
jiiamistry and movement Many
commentors argued that such
constituents should not be included on
Appendix IX if they do not pose a
significant hazard. The Agency agrees
with these commentors on this issue and
hai deleted these constituents from
Appendix IX. The following table
contains those constituents that while
no t part of Appendix IX, are valuable
for the characterization of subsurface
environmental chemistry. It is'important
to note that while these constituents are
unlikely to pose a significant hazard in
themselves, the Regional Administrator
does have the authority to require *
' monitoring for them on a case-by-case
basis if such analyses are necessary to
protect human health and the
environment (see "Discretionary
Additions", below)!
TABLE i
Aluminum _..
Bicarbonate/
Carbonate.
Boron ...
Calcium
Chloride
Fluoride..
Hydrogen ion
-------
'Federal Register / Vol. 52. No. 131 /Thursday. July 9.'1987 / Rules and Regulations 25945
constituents are present in ground-water
samples containing unknown amounts
of unidentified chemicals. With this rule,
EPA believes this goal has been met. In
order to facilitate the analysis of these
compounds, the Agency has included
two additional columns in the regulatory
list besides those columns that identify
th
-------
25948 Federal Register / Vol. 52. No. 131 / Thursday. July 9. 1087 / Rules and Regulations
regulations being promulgated today to
determine whether they meet the tests
for authorization. Thus, a State is not
authorized to carry out these
requirements in lieu of the Agency until
the State requirements are approved. Of
course. States with existing standards
may continue to administer and enforce
their standards as a matter of State law.
States that submit official applications
for final authorization less than 12
months after the effective date of these
standards are not required to include
standards equivalent to these standards
in their application. However, the State
must modify its program by the
deadlines set forth in §271.21(e). States
that submit official applications for final
authorization 12 months after the
effective date of those standards must
Include standards equivalent to these
standards in their application. 40 CFR
271.3 sets forth the requirements a State
must meet when submitting its final
authorization application.
Vm. Effective Date
Pursuant to Section 3010(b) of RCRA,
today's amendments will be effective
six months after promulgation.
IX. Executive Order No. 12291 and
Regulatory Impact Analysis
Under Executive Order 12291. the
Agency must judge whether a regulation
is "major" and. therefore, subject to the
requirement of a Regulatory Impact
Analysis. As stated in the proposed rule
on July 24,1988. the Agency does not
believe these conforming changes will
result in an annual effect on the '
economy of $100 million or more: a
major increase in costs of prices of .
consumers, individual industries,
Federal, State, or local government
agencies, or geographic regions: or
significant adverse effects on
competition, employment, investment
productivity, innovation, or In domestic
or export markets. The Agency believes
that today's rule is not a mojor rule
under Executive Order 12291 and
therefore, has not prepared a Regulatory
Impact Analysis (RIA). This regulation
was submitted to the Office of
Management and Budget for review as
required by Executive Order 12291.
X. Regulatory Flexibility Act
Under the Regulatory Flexibility Act.
(5 U.S.C. 601 et seq.), the Agency must
prepare a regulatory flexibility analysis
for all regulations that may have a
significant impact on a substantial
number of small entities. The Agency
conducted such an analysis on the land
disposal regulations and published a
summary of the results in the Federal
Register, Vol. 48. No. 15 on January 21.
1983. Today's conforming regulation
does not impose significant additional
burdens. In addition, they do not impose
any requirements beyond those required
for permitting facilities under Part 264.
Therefore, pursuant to 5 U.S.C. 601(b), I
certify that this regulation will not have
a significant economic impact on a
substantial number of small entities.
XI. Supporting Documents
The docket (see "Addresses") for this
rulemaking contains the new data EPA
received concerning the analytical
feasibility of these compounds since the
time the proposed rule was published in
the Federal Register. The docket also
contains a chemical-by-chemical
summary of any compounds that were
re-examined since the time of the
proposal, as well as a report of the
aforementioned December 11,1988
meeting of analytical experts. The
background document "Summary of
Appropriate Methods for Appendix DC*
(see "Analytical Methods") is also
available in the docket.
XH. Lists of Subjects in 40 CFR Parts 264
and 270 .
Hazardous materials, Reporting and
Recordkeeping Requirements, Waste
Treatment and Disposal, and Water
Supply, Administrative Practice and
Procedure, Ground Water,
Environmental Monitoring.
Dated: June 19,1987.
Lee M. Thomas,
Administrator.
For the reasons set out in the
preamble. Title 40 of the Code of Federal
Regulations is amended as follows:
PART 264AMENDED
1. The authority citation for Part 284 is
revised to read as follows:
Authority: Sees. 1006, 2002(a), 3001. 3004.
and 3005 of the Solid Waste Disposal Act. as
amended, 42 U.S.C. 6905, 6912(a), 6924 and
6925.
2. Section 264.98 is amended by
revising paragraphs (h)(2), (h)(3)
introductory text and (h)(4)(i)
introductory text to read as follows:
§ 264.98 Detection monitoring program.
*****
(h)***
(2) Immediately sample the ground
water in all monitoring wells and
determine whether constituents
identified in the list in Appendix IX of
Part 264 are present and. if so, at what
concentration.
*****
(3) Establish a background value for
each constituent that has been found at
the compliance point under paragraph
(h)(2) of this section, as follows:
*****
(4)* * *
(i) An identification of the
concentration of each constituent found
in the ground water at each monitoring
well at the compliance point:
*****
3. Section 284.99 is amended by
revising paragraph (f) to read as follows:
§264.99 Compliance monitoring program.
*****
(f) The owner or operator must
analyze samples from all monitoring
wells at the compliance point to
determine whether constituents
identified in the list in Appendix IX to
Part 264 of this chapter are present and,
if so, 'Si what concentration. The
analysis must be conducted at least
annually to determine whether
additional Appendix IX constituents are
present in the uppermost aquifer. If the
owner or operator finds constituents
from Appendix IX in the ground water
that are not already identified in the
permit as monitoring constituents, the
owner or operator must report the
concentration of these additional
constituents to the Regional
Administrator within seven days after
completion of the analysis.
Appendix VII and VIII [Reserved]
4. A new Appendix' 'II and Appendix
VIII are added to Part 264 and reserved
as follows:
Appendix VII (reserved)
Appendix VTII (reserved)
5. A new Appendix IX is added to Hart
264 as follows:
-------
Federal Register j Vol. 52, No. 131 / Thursday. July 9, 1987 / Rules and Regulations
25947
APPENDIX IXGROUND-WATER MONITORING LIST l
Common name 2
Acenaphthene .'.
Acenaphthylene < .
Acetone . '.
Acetophenone
Acetonitrile; Methyl cyanide
Acrolein ...
Acrylonitrile '. ...;.
Aldrin..
Ally! chloride
4-Aminobiphenyl .................................................
Aniline . ......; .
Anthracene [[[ ..
Antimony [[[
Aramite ......'.......»..........,................ ..,
Arsenic[[[
Barium .... ....^..-, ....... n.m. ....,..'.
Benzene .. '.. . , * _
Benzo[a]anthracene; Benzanthracene ....
Benzo[b]fluoranthene ....................................
Benzo[ghi]perylene :
Benzo[a]pyrene
Benzyl alcohol ......................
Beryllium ;....'. : ,.';
alpha-BHC . . .
beta-BHC
delta-BHC . '. »
gamma-BHC; Lindane ,
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl)ether
Bis(2-chloro-1-methylethyl) ether; 24!'-Di-
chlorodiisopropyl ether
Bis(2-ethylhexyl) phthalate
Bromodichloromethane
Bromoform; Tribromomethane
CASRN3
83-32-9
208-96-8
67-64-1
98-86-2
75-05-8
53-96-3
107-02-8
107-13-1
309-00-2
107-05-1
92-67-1
62-53-3
120-12-7
(Total)
140-57-8
(Total)
(Total)
71-43-2
56-55-3
205-99-2
207-08-9
191-24-2
50-32-8
100-51-6
(Total)
319-84-6
319-85-7
319-86-8
58-89-9
111_91_1
111-44-4
108-60-1
117-81-7
75-27-4
75-25-2
Chemical abstracts service index name *
Acenaphthylene 1 2-dihydro- -
Acenaphthylene ..
2-Propanone
Ethanone 1-phenyl-
Acetonitrile
Acetamide, N-9H-f luoren-2-yl-
2-Propenal
2-Propenenitrile
1 4*5 8-Dimethanonaphthalene 1 ,2 3 4 1 0 1 0-hexachloro-
1,4,4a,5,8,8a-hexahydro- (1tx,4a,4a/},5a,8a,8a/J)-
1-Propene, 3-chloro-
£1 ,1 '-BiphenyO-4-amine
Benzenamihe
Anthracene '.
Antimony . .
Sulfurous acid 2-chloroethyl 2-[4-(1 1-
dirnethylethyl)phenoxy]-1 -methylethyl ester
Arsenic............................................ _ ..,. . .
Barium .'...-[[[_............ ...........
Benzene
Benz[a]anthracene ......
BenzEeldcephenanthrylene .
Benzotklfluoranthene ....
Benzo[ghi]perylene
Benzo[a]ovrene . .. '._
Benzenemethanol
Beryllium
Cyclohexane 12345 6-hexachloro- (1a 2a 3/3 4tt 5/J 6/3)-
Cyclohexane 12345 6-hexachloro- (1 a 2/3 3cc 4/3 5a 6/3)-
Cyclohexane, 1, 2,3,4 ,5,6-hexachloro-,(1a,2a 3a,4^,5a,6^)-
Ethane, 1 1'-Cmethylenebis (oxy)3bis£2-chloro-
Ethane, 1,1'-oxybis[2-chloro-
Propane, 2,2'-oxybis[1-chloro-
1 ,2-Benzenedicarboxylic acid bis(2-ethylhexyl)ester
Methane, bromodichloro-
Methane, tribromo-
Sug-
gested
meth-
ods5
8100
8270
8100
8270
8240
8270
8015
8270
8030
8240
8030
8240
8080
8270
8010
8240
8270
8270
8100
8270
6010
7040
' 7041
8270
6010
7060
7061
6010
7080
8020
8240
8100
8270
8100
8270
8100
8270
8100
8270
8100
8270
8270
6010
7090
7091
8080
8250"
onpn
8250
PtriRn
8250
8080
8250
8270
8270
8010
8270
8060
8270
8010
8240
8010
82^0
POL
(/j.g/L)6
200
10
-200 -
.10
100
10
100
10
5 ,
5 '
5
5
-------
25948
Federal Register / Vol. 52. No. 131 / Thursday. July 9. 1987 / Rules and Regulations
APPENDIX IX-^ROUND-WATER MONITORING LIST 1 Continued
Common name a
Butyl benzyl phthalate; Benzyl butyl phthal-
ata
Carbon disulfkte .......
Chlofobenzene«........-................
p-Chloro-m-cresol
Chloroethane; Ethyl chloride
2-CMoronaphthaJene ..»..
z-untoropnofioi .._......._.-.......... ........
4-CWofophonyl phenyl ether ......
Cobalt ...-
oXJresol .
2.4-O; 2,4-Dfchlorophenoxyacetic acid
4 4'-ODD
4,4'-DDE .___.. ...~ - .....
4 4'-DOT
Dialtate ........«.. ...... ...............
Dibonzta,Manthracene~. ..
Dtbonzofuran ............ ....
Dibromochtoromethane; Chlorodibromo-
methane
1 ,2-Dibromc-3-chloropropane: DBCP
1,2-Oibromoetnane: Ethylene dibromide
o-Dichlorobenzene
CASRN3
101-55-3
85-68-7
(Total)
75-15-0
56-23-5
57-74-9
106-47-8
108-90-7
510-15-6
59-50-7
75-00-3
67-66-3
91-68-7
95-57-8
7005-72-3
126-99-8
(Total)
218-01-9
(Total)
(Total)
108-39-4
95-48-7
106-44-5
57-12-5
94-75-7
72-54-8
72-55-9
50-29-3
2303-16-4
53-70-3
132-84-9
124-48-1
96-12-8
~~-f 06^93-4
84-74-2
95-50-1
Chemical abstracts service index name*
1.2-Benzenedicarboxylic acid, butyl phenylmethyl ester.:
Methane tetrachloro-........... . _..._._.._...
4.7-Methano-1H-indene, I^AS.ej.S.S-octacrHoro-
2,3.3a,4,7.7a-hexahydro-
Benzenamine. 4-chloro- ... ~ ......................
Benzeneacetic acid. 4-chloro^-(4
Naphthalene, 2-chloro- » -
1 ,3-Butadten8, 2-chloro- ....... . ..««.-.. :..*«.«««.«-»«.««*...
CoDoer .,..«...«..««-««««-*.«.«
Phenol, 4-methyl- ............. . ............ -. ....... ...
Benzene 1,1'-{2.2-dichlorQethylidene)bis[4-cWoro- .
Benzene 1,l'-{dichloroethylidene)bis[4-chioro-. . .
Benzene 1 . 1 '-(2.2,2-trichloroethy Iidene)bis{4-chtofO-
Carbamothiotc acid, bis(l-methyiethyl)- , S- (2,3-dichloro-2-
propenyl) ester
1 ,2-Benzenedicarboxylic acid, dibutyl ester
Benzene 1 ,2-dichloro-
Sug-:,
gested
meth-
ods"
8270
8060
8270
6010
7130
.7131
8240
8010
8240
8080
8250
8270
8010
8020
8240
8270
8040
8270
8010
8240
8010
8240
8120
. 8270
8040
8270
8270
8010
8240
6010
, 7190
7191
8100
8270
6010
7200
7201
6010
7210
. 8270
8270
8270
9010
8150
8080
8270
8080
8270
8080
8270
8270
8100
8270
8270
, 8010
8240
8010
8240
, 8270
8010
8240
8060
8270
8010
8020
8120
8270
PQLe
10
5
10
40
50
1
5
1
5
0.1
10
20
2
> 2
5.
10
5 '
20
.5
10
0.5
5
10
10
5
10
10
50
5
70
500
10
200
10
70
500
<; 10
* 60
. 200
10
10
40
10
0.1
10
0.05
10
0.1
10
10
200
10
10
1
5
100
5
10
10
5
5
10
2
5
10
10
-------
Federal Register / Vol. 52, No. 131 / Thursday, July 9, 1987 / Rules and Regulations
25949
APPENDIX IXGROUND-WATER MONITORING LIST »Continued
Common fiame2
p-Dichlorobenzene . ..
3,3'-Dichlorobenzidine....................
trans*1 4-Dichloro-2-buten©
Oichlorodifluoromethane
1 1 -Dichtorocthans
1,1-Dichloroethylene; Vinytidene chloride........
trans- 1 2-DichloroGthytene
2 4-Dichlorophenol
2 6-Dichlorophenoi r ww.
1 2-Dichlofopropane J* '
cis-1 3-Dichloropropen6* " '* ~ "
r^lrirm '" '' ' ' "' "'' '"'
:,.- ./...- ;. ..*-... . .
Diethy! phthalate ......_.....................................
O.O-Dtethyl O-2-pyrazinyt phosphorothioate;
Thionazin - ; ' "
Dimethoate ......._.."....... _._.«.'.l.-.;.... ...........
p-{Dime?hylamino)azobenzene...^...i...-..
7 1 2'Dirn8thyibenzr.a3anthracene
3 S'-Dimethytbenzidine
alpha, alpha-Dimethylphenethylamine
2 4-Dimethylphenol
Dimethyl phthalate
fYt-Dirtitrobenzene . '
4 6-Dinitrc-o-cresol
2 4-Dinitrotoluene
2 6-Dinitrotoluene
Dinoseb; . DNBP; 2-sec-Butyl-4,6-dinitro-
phenol
Di-n-octyl phthatate '. ' .'....».......
1 '4-Dioxane ' ' " ' ' " *
Endosulfan l_. .............................................
CASRN3
541-73-1
106-46-7
. 91-94-1
110-57-6
75-71-8
: , 75-34-3
107-06-2
75-35-4
156-60-5
120-83-2
.... 87-65-0
78-87-5
10061-01-5
10061-02-6.
..-- 60-S7-1
84-66-2
- 297-97-2
60-51-5
60-11-7
57-97-6
119-93-7
122-09-8
105-67-9
131-11-3
99-65-0
534-52-1
51-28-5
121-14-2
606-20-2
88-85-7
117-84-0
123-91-1
122-39-4
298-04-4
959-98-8
Chemical abstracts service index name4
Benzene 1 ,3-dichloro- ...._...__.. ..........
Benzene 1 4-dichloro-
[1,1'-Biphenyl3-4,4'-diamine, 3,3'-dichloro- .......
Methane dichlorodifluoro- ...
Ethene 1 2-dichloro- (E)- ........... ;
Phenol 24-dichlorc-......................«.... .«'"
Phenol 2 6-dichloro- ........................... -......;.........................
Propane 1 2-dichloro- ..........................._.............-....... ~.
1-Propene 1 3-dichloro-, (Z)-..........................-.....«.....~.......
1-Propene 1 3-dichloro-, (E)- . » . ..
2.7:3.6-DimethanonaphthC2,3-b]oxtrene, 3,4,5,6,9,9-hex-
achloro-1 a,2,2a,3,6,6ai7,7a-octahydro-, (1 ao^^,2ao,3/?
,6/3,6ao,7/S.7aa)- . . '
1,2-Benzenedicarboxylic acid, diethyl ester
Phosphorothioic acid, O.O-diethyl O-pyrazinyl ester.
Phosphorodithioic acid, O,O-dimethyt S-[2-(methylamino)-2-
oxoethyl] ester ' ...
BenzeriarnifieTTW-aimethyl-4=(phenylazo}-.--»
Berizeneethanamine, a,a-dimethyl- . '. '. .-.
Phenol 2 4-dimethyl- ...................
1 2-Benzenedicarboxylic acid, dimethyl ester.. .......................
Phenol 2-methyl-4,6^jinitro- ........
1 4-Dioxane
Benzenamine N-phenyl-
Phosphorodithioic acid, O.O-diethyl S-[2-(ethylthio)- S-E2-
ethyljester .
6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-hex-
achloro-1 ,5,5a,6,9,9a-hexahydro-, 3-oxide, (3a,5a/3,6a,9a
Sug-
gested
meth-
ods5
' 8010
8020
8120
8270
8010
8020
8120
8270
8270
8240
8010
8240
8010
8240
8010
8240
8010
8240
8010
8240
8040
8270
8270
8010
8240
8010
8240
8010
8240
8080
8270
8060
8270
8270
8270
8270
8270
8270
8270
8040
8270
8060
8270
8270
8040
8270
8040
8270
8090
8270
8090
8270
8150
8270
8060
8270
8015
8270
8140
8270
8080
8250
POL
(M3/U6
. >- .-V . ,:
5
10
10
2
5
15
10
20
5
10
-. "5
1
'. 5
0.5
5
"' 1 '
5
1
5
5
10.
10;
0.5
' ,,5; '
20
5
-. . 5.--
5
''-' 0.05
10
5
.10
10
10
;io;
.10 :
10
5
10
5
10
10
150
50
150
' 50
0.2
" 10
0.1
10
. . - 1
10
30
10
150
10
2
10
0.1
10
-------
25950 Federal Register / Vol. 52. No. 121 / Thursday. July 9. 1987 / Ruiei and Regulations
^^'^MHMi^^
APPENDIX IX GROUND-WATER MONITORING LIST l Continued
Common name 2 ! CAS RN 3
!
E "> Josulfan II ._ .....
Endosulfan sulfate .
Encnn,_......._ _. _
Endnn aldehyde
Ethyibenzene _
Ethyi methacrylate _
Ethyl meihanesulfonate
Famphw ,. .,., , . ,
Fluoranthene ....._
Fluorena.... . _....._._ _
Hoptachlor.... .._.....
Heptachlor epoxide ......_....._.
Hex&chtorobenzene... ..,...._
Hexachtorobutadiene
Hoxachlorocydopentadiene
Hoxachtofoethane___.»._._m,..._.....«.._
Hexachlorophene
Hoxachkxopropena _
2 Hexanone .......... _......
lndano(1,2,3^ri)pyrRno ..., ,
Isotxjtyf alcohol
IsQdrjfl. ,.. .,,... ,
IspphOfOnfl,, ..,.,.,.,..... .,,^,,,., ,
Isosafrole ..
Keponn,, ,.....,
Ln;irf ,.. ,..!_,, , ,
Mofcury ...,.._...._..,...
Mothacryionitiile
Methapyrilono...
Mothoxychlor........
Methyl bromide; Bromomethane
Methyl chloride; Chloromethane
'
3-Mothylcholanthrene _
Methyfene bromide; Dibromomethane
Mothytene chloride; Dichloromethane
' 33213-65-9
1031-07-8
72-20-8
7421-93-4
100-41-4
97-63-2
62-50-0
52-85-7
206-44-0
86-73-7
75-44-8
1024-57-3
118-74-1
87-68-3
77-47-4-
67-72-1
70-30-4
1888-71-7
591-78-6
- 193-39-5
78-83-1
465-73-6
78-59-1
120-58-1
143-50-0
fTotal)
(Total)
126-98-7
91-80-5
72-43-5
74-83-9
74-87-3
56-49-5
74-95-3
75-09-2
Chemical abstracts service index name «
6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-hex-
achloro- 1 ,5,5a.6,9,9a-hexahydro-, 3-oxide,
(3a,5aa,6/3.90.9aa)-
6,9-Metfiano-2,4,3-benzodioxathiepin. 6,7,8.9, 1 0. 1 0-hex-
achloro- 1 ,5,5a,6,9,9a-hexahydro-, 3,3-dioxide.
2,7:3,6-amethanonaphth[2,3-b]oxirene, 3,4.5,6,9,9-hex-
aohloro-1 a,2,2a,3,6,6a,7,7a-octahydro-. (1 ao.
2p,2a0,3a,6a. 6a#.7y3,7aa)-
1,2,4-Methenocyclopenta[cdipentalene-5-carboxaldehyde.
2,2a3,3,4,7-hexachlorodecahydro-, (1 ot.2^,2a0,4/3
,4a^.5/3,6aj3,6b/3,7R*)-
Benzene, ethyi- _...
2-Propenolc acid 2-methyl- ethyl ester
Methanesulfonic acid ethyl ester .
Phosphorothioic - acid, O-f.4-
C(dimethylamino)sulfonyl]phenyl]-O,0-dimethyl ester
Fluoranthene
9H-Ruorene.
4,7-Methano-1H-indene. 1,4,5.6,7,8,8-heptachkxo-
3a.4.7.7a-tetrahydro-
2.5-Methano-2H-indenoC1 ,2-b]oxirene, 2.3.4,5,6,7.7-hep-
tachloro-1a,1b,5.5a,6,6a,-nexahydro-, (1ao,1b^^a.5a
,5a/3,6/3.6aa)
Banzane, hAvacft'OTO- .,..., _...
1,3-Butadiefie, 1 ,1 ,2,3,4,44w(xachl. .--- ,
V,3-CyclopefitadienQ, 1 2,3 4 5 5-hexachtoro-
Ethflna, hflxqcliloro-. .....:. .......,..,.,,...,.
Phenol. 2.2'-methylenebis[3,4,6-trichloro- ;
1-Propena, 1,1,2,3^,3-hex9Chlor(>. ....,......,.,,.,. ..
2-Hexanorte_ -
lndemj[1,?,3-
-------
Register / Vol. 52. Me. 131 / Thursday. July 9, 1987 / Rules and Regulations 25951
APPENDIX IXGROUND-WATER MONITORING LIST 'Continued
Common name7
Methyl ethyl ketone; MEK
Methyl iodide; lodomethane
Methyt methacrylate _
Methyl methanesuifonate
2-Methylnaphthatene
Methyl parathion; Parathion methyl
4-Methyl-2-pentanone; Methyl isobutyl
ketone :
Naphthalene _.....
1 ,4-Naphthoquinone ........ _
1-Naphthylamine.._.................._...
2-Naphthylamine ' ..... ...
Nirkftl .... , ',
O-NHroflni|ing .
m-Nitmanilinf ..,,,.,., ,
p-NitroanHinfl ...........,.,,.,,,, ,
Nrtn^)^07t>nfl ._...... ....,,,...,....,,..,,.,...,,.,1
o-Nitrophenol .' ; lliu ;, >
p-Nitroph«?no}.. ...:..l ...:/.:. ,!,;.!.~,y!J..,,,,,,,,,.liiL,i
4-Nitroquin6Une 1-oxide !...;..............
N-NitrosodMVbutyfaminQ";^.. ' ..
N-Nftrosodielhylamine...: ^
N-Narosodimsthylamine.......m«...._._... :.:..
N-Witrosodiphsnyiamine .!.. ..!._.. "_T
N-Ni'ffosodipropylarntne; Dt-rvpropylnitrosa-
minfl ' '"... ' ;'"''
hi-Nitrosomethyletnylamine-......;..........; ........
N-Nftrosomorphofine ..... .";.... ;...
N-Nitrosopiperidtne.....:....'..-..."....
N-Nitrosopynrolidine-..-.:: ^ ....; ...
5-Nitro-o-toluicCne _. ............ ...............................
Pansthion,.. .._._..- ,-..! .,,,,,..
Potychlon'nated biphenyls; PCBs. ..'. '.
Pofychlorinated dibenzo^p-dioxins; PCDDsv.
PotycWorinated dibenzofurans; PCDFs '.
Pentachlorobenzene..«.-J.....~r.~........."....
Pentachioroethane ...... .;.."....... . '
Pentachloronitrobenzene. ;.. _
Pentachlorophenoi... -..._
Phenacetin..- ............ ; ... ..
Phfin^nthrene,-,',,,,,, ...,,.',,,. ,, .,
Phenol _. _ L.... :
p-Phenylenediamine -'....:....:;.. .'..'.....;...
. Phorate.I.l~; .'~ J ; ^_ _~.__^
2-PicoMne i^,,,^,^,;,,-,.,^,,!,, ..._,,___,,,,,,
PrortBfTwte ,. ,.i,, ,;....-..,,. , ,-,'--'"-- ,',,if,r ' "
Proptonttrile;-Ethyl cyanide ; ' . ' ' *
Pyfftjne ": " ',-'-'--- :'-'-' '.".- -.-..'....',
CASRN*
78-93-3
74-88-4
80-62-6
66-27-3
91-57-6
298-00-0
108-10-1
91-20-3
130-15-4
134-32-7
91-59-8
(Total)
88-74-4
99-09-2
100-01-6
98-95-3
' 88-75-5
" 100-02-7
56-57-5
024-16-3
55-18-5
62-75-9
86-30-8
621-64-7
10595-95-6
59_g9_2
100-75-4
930-55-2
99-55-8
56-38-2
See Note 7
See NoteS
See Note 9
608-93-5
76-01-7
82-68-8
87-86-5
62-44 2
85-01-8
108-95-2
106-50-3
298-02-2
109-06-8
23950-58-5
107-12-0
- 129-00-0
110-86-1
Chemical abstracts service index flame 4
2-Butanone ...... ..-.~ .. ........ .
Methane, iodo-
2-Propenoic acid, 2-methyl-, methyl ester
Methanesulfontc acid, methyl ester .
Naphthalene 2-methyt-._«- _ ..
Phosphorothioic acid, O,O-dimethyl O-(4-nitrophenyl) ester ...
?-Pentanons 4-methyl-.. ,,...,....,,....,.,.,,, ..^^^^ ^ ^
Naphthalene «... ; ...:
1 4-Naphthaienedtone . ... .
1-Naphthalenamine »«. . .... .... . «
2-Naphthahanamine . ...
Nickel . . _
Benzenamine, 2-nitro............... : .-.
BwTenarfHfx? 3-nflnv..'. ....;...-....-
Ben/pnjwnme, 4-nrtro- ,1, , '
Benzene, nitro-...: : ; '.
Phenol 2-nttro- -' . . .' «
Phflnot 4-nftro- -- ....... ..
QtHnofine 4-nitay, 1-oxkJft .......... .' ,,,,..,.,
1-Bistanamine, N-butyt-N-nHrono--'..-...... .'..
Ethanamine, N-etnyl-N-nftrosc- .»»....»^... . .... .............
Methanamtne, N-methy(-N-nJtroso- _......_ ...._................_..
Beruenanww N-nitroso-N-phenyW..: ; u.,,.... , _
1-Propanamirt9, N-nrtroso-N-propyl- ....._...................
Fthanamin6 N-m@thyl-N-nitroso* . '. »
Morpholine 4-nrtroso-" .....'...' . "...
Pipofidinfl, 1-nitroso-....: '.
Pyrrolidine 1 -nitrosc . . «..»«.'. ........ .......
Benzenarriine, 2-rnetr(y<-5-nilro-__.~.._._.. ...._._...__.........
PhosphofOthcoic acid, O O-di6thy(-O-(4-nttrophenyl) ester '
1 I'-Biphenyl chloro derivatives ~~~~. ;.. .' '.
Dibenzotb elI1 41dioxint chtoro derivatives ' ... .
Dibenzofuraiv cWoro derivatives «_*...' «. " . . ' . :.~~~,~.~~
Benzene, ppfitachloro- '.. .'.
Ethane p^jntachloro- ' » * . ' ' . .
Benzene pentachloronitro- ...
Ph^noii pfintgchioro- ' '
Acetamide, N-(4-ethoxyfrfienyl) _
Phf^nanthrene ;
Phenol . ..
1 ,4-Benzenediamine .....:........ ...;'.... ............'....._
Phosphorodithioic acid,- O,O-diethyl S-C(ethyltWo)methytl
ester .
Pyridine, 2-*nethy>-^.~«___: ^__\ .....__..___......._...._
Rf»n7^mir!*> a fuHir-h)iW-{} i-dimoft>yf-?-prif*yny'f-
Propanenitrite ' .~ ~ ' _ . . '.. ^. . .....;..
Pyririine...- ...";--..:. '-!-," ... : .
Sug- \
nested
meth-
ods5
8015
8240
8010
8240
8015
8240
8270
8270
8140
8270
8015
8240
8100
8270
8270
8270
8270
6010
7520
8270
8270
. 8270
8090
8270
8040
8270
8040
8270
8270
8270
8270
8270
8270
827O
8270
8270
8270
8270
8270
8270
8080
«250
8280
8280
8270
8240
8270
8270
8040
8270
8270
8100
8270
8040
8270
8270
8140
8270
8240
8270
8270-
8015'
8240
8100
8270
.. 8240
8270
POL
(fig/U*
10
100
40
5
2
5
10
10
0.5
10
. > 5 '
. 50
200
10
10
10
10
50
400
50
50
50 . .
40
10
' ' 5 '
10
to -
:; 50
, -jo
- .' 10
10
- . 10.
10
.-,<. 10
, 10 -
10
10 v
10
- 10, _
to .
50
100
0.01
.-..' 0.01
10-
5
10
10
5
50
10
200
10
1
10
10
-.-: 2 .
10
- 5
... 10
... 10
60
. 5
. 200 "
- 10
'"-'. 5 '
10
-------
25952 Federal Register /Vol. 52. No. 131 / Thursday. July 9, 1987 / Rules and Regulations
APPENDIX IXGROUND-WATER MONITORING LIST lContinued
Common name2
Safrola _
Selenium .
Silver _...» - ........ _.
Silvex; 2.4.5-TP
Styrene.,.-. - -
Sulfide
2,4 5-T; 2 4 5-Trichlorophenoxyacetic acid ..
2,3,7,8-TCDD; 2.3,7,8-Tetrachlorodibenzo-p-
dioxin
1 ,2,4,5-TetrachlorobenzeriQ _.......
1.1,1 ,2-Tetrachtoroe thane .
1 ,1 ,2, 2-TetrachIoroe thane. ..
TetrachJoroettiylene; PercWoroethylene;
Tetrachloroethene
2.3,4.6-Tetrachlorophenol.....
Tetraothyl dithtopyrophospnate; Sulfotepp
Thallium... ......_ _.... .
Tin
Toluene .................. . .. ............... ......_.......
o-Toluidine .... ......._._.._......._...........
Toxapti ofia .................._......_...._......«.........
1,2,4-Trichlorofaenzene .............. ................
1,1,1-TricWoroethane; Methytehtoroform.....
I.l.sj-Trichiofoflthafw ;..
Trichloroethylehe; TricWoroethene .: ;
Trichlofonuorome thane :
2.4.5-Trichlorophenol
2.4,6-Trichlorophenol
1,2,3-TrlchJoropropane
O.O.O-Triethyl phosphorothioate.
sym-Trinitrobenzene ..................................
Vanadium ._._......,........................ .
Vinyl acetate _...
Vinyl chloride....-
Xyiene (total) ;:
Zinc. ................................. _. .
CAS RN 3
94-59-7
(Total)
(Total)
93-72-1
100-42-5
18496-25-8
93-76-5
.1746-01-6
95-94-3
630-20-6
79-34-5
127-18-4
58-90-2
3689-24-5
(Total)
(Total)
108-88-3
95-53-4
8001-35-2
120-82-1
71-55-8
79-00-5
79-01-6
75-69-4
95-95-4
88-06-2
96-18-4
126-68-1
99-35-4
(Total)
108-05-4
75-01-4
1330-20-7
(Total)
Chemical abstracts service index name *
1 3-Benzodioxole 5-(2-propenyl)-
Silver « -
Propanoic acid, 2-(2,4,5-trichlorophenoxy)-
Benzene, ethenvl- ..
Sulfide
Dibenzo[b,e] C1 ,4]dioxin, 2.3,7.8-tetracnloro-
Benzene, 124 5-tetrachloro- ............... ...~............~-..-
Ethane, 1,1,1,2-tetrachloro- .._ ........
Ethane, 1 ,1 ,2,2-tetrachlorc- ....... ......_....._............,«._......
Ethene, tetrachloro-.... ....................................... .........._.~.......
Phenol, 2,3,4,6-tetrachloro-..~.......~ .......................... ......~.
Tniodiphosphoric acid (C(HO)iP(S)]jO), tetraethyl ester
Thallium ._....................................................................-.
Tin . . _ ........ . - ..
Bsnzons, methyl-
Benranamina, 2-ffiethyl-. .'. u. .'.,..
Toxaphene ._.'....._..... ..._.««.._......_«..-.~.~..._. -...;.........._
Benzene, 1 ,2,4-trichloro- .~~..............~.~.~.~~....~.~~~^....~~~~
Ethane 1 1,1-trichloro- ,;.. ,*T,,,,, :,,..
Ethaiw 1 1 2-trichloro- ..." , ..... ,........".. .'.;.:
* *
Ethens, trichloro- ^^.^^.^....^....^^.................'.'.i.....^..^....'....
Methane, trichlorofluoro- .....-.««....«.-....«..;».....««;«...»..»«««.
Phenol, 2,4,5-trichloro- ..**.....M.H*......»»«HH«..».»**M«*M...«.*H.«».
PhenoJ, 2,4,6-trichloro-.^.......,...................-..... ......««.««.««.
Prooane. 1 .2.3-trichloro-
Phosphorothioic acid, O.O.O-trietnyl ester ;....... ... ...
Benzene 1 3 5-trinitro- « . ..»........H...»..»..»...M....'....H
Vanadium ..........._.......................
Acetic acid, ethenyl ester ..................................._..........
Ethene chlorc . . . ...«...».
Benzene, dimethyl- [[[
Zinc : ....
Sug-
gested
meth-
ods5
8270
6010
7740
7741
6010
7760
8150
8020
8240
9030
8150
8280
8270
8010
8240
8010
8240
8010
8240
8270
8270
6010
7840
7841
7870
8020
8240
8270
8080
8250
8270
8240
8010
8240
8010
8240
8010
8240
8270
8040
8270
8010
8240
8270
8270
6010
7910
7911
8240
8010
8240
8020
8240
6010
7950
PQL
0*g/U8
10
750
20
20
70
100
2
1
5
10.000
2
0.005
10
5
5
0.5
5
0.5
5
10
10
400
1,000
10
8.000
2
5
10
2
10
10
5
0.2
5
1
S
10
5
10
5
10
10
5 '.
10
10
80
2.000
40
5
2
10
5
5
20
50
'Tho regulatory requirements pertain only to the list of substances; the right hand columns (Methods and PQL) are given for informational
purposes only. See also footnotes 5 and 6.
E Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many
chemicals.
3 Chemical Abstracts Service registry number. Where "Total" is entered, all species in the ground water that contain this element are
included. , .
* CAS Index names are those used in the 9W Cumulative Index.
s Suggested Methods refer to analytical procedure numbers used in EPA Report SW-846 'Test Methods for Evaluating Solid Waste", third
edition, November 1986. Analytical details can be found in SW-846 and in documentation on file at the agency. CAUTION: The methods listed are
representative SW-846 procedures and may not always be the most suitable method(s) for monitoring an analyte under the regulations.
9 Practical Quantitation Limits (PQLs) are the lowest concentrations of analytes in ground waters that can be reliably determined within
-------
Federal Register / Vol.
25S53
~~~ Trant fiaure CAUTION- The PQL values in many cases are based only on a general estimate for the method and not on a
The PQL shown is an average value for PCDF congeners.- - '
PART 270AMENDED
1. The authority citation for Part 270 is
revised to read as follows:
Authority: Sees. 1006, 2002(a), 3001,3004,
and 3005, of the Solid Waste Disposal Act, as
amended. 42 U.S.C. 6905,6912(a), 6924 and
6925.
2. Section 270.14 is amended by
revising paragraph (c)(4)(ii) to read as
follows:
§ 270.14 Contents of Part B: general
requirements.
(4) *
(ii) Identifies the concentration of
each Appendix IX, of Part 264 of this
chapter, constituent throughout the.
plume or identifies the maximum
concentrations of each Appendix IX
constituent in the plume.
[PR Doc. 87-14658 Filed 7-8-87; 8:45 ami
BILLING CODE 6560-50-lt
-------
------- |