WSR 15-20-096
PERMANENT RULES
DEPARTMENT OF ECOLOGY
[Order 15-01—Filed October 6, 2015, 9:42 a.m., effective November 6, 2015]
Effective Date of Rule: Thirty-one days after filing.
Purpose: The department of ecology revised Appendix III of WAC 173-351-990 to include two hazardous organic constituents: 2,3,7,8-Tetrachlorodibenzo-p-dioxin - [CAS 1746-01-6] and alpha, alpha-Dimethylphenethylamine [CAS 122-09-8]. This revision is necessary to be consistent with federal rules in 40 C.F.R. Part 258. Operators of municipal solid waste landfills must meet federal program requirements. Revising our rule eliminates possible noncompliance for facilities that inadvertently omit the two additional constituents required to be monitored under federal rules. It also clarifies monitoring requirements for local jurisdictional health authorities that have the lead for issuing and enforcing solid waste permits. These revisions will enable ecology to obtain full approval of our municipal solid waste program from the United States Environmental Protection Agency (EPA).
Reviser's note: The brackets and enclosed material in the text above occurred in the copy filed by the agency and appear in the Register pursuant to the requirements of RCW 34.08.040.
Citation of Existing Rules Affected by this Order: Amending WAC 173-351-990.
Statutory Authority for Adoption: RCW 70.95.060(1) and 70.95.260(6).
Adopted under notice filed as WSR 15-15-108 on July 16, 2015.
A final cost-benefit analysis is available by contacting Kirsten Miller, P.O. Box 47600, Olympia, WA, 98504-7600, phone (360) 407-6707, fax (360) 407-6102, e-mail kirsten.miller@ecy.wa.gov.
Number of Sections Adopted in Order to Comply with Federal Statute: New 0, Amended 0, Repealed 0; Federal Rules or Standards: New 0, Amended 1, Repealed 0; or Recently Enacted State Statutes: New 0, Amended 0, Repealed 0.
Number of Sections Adopted at Request of a Nongovernmental Entity: New 0, Amended 0, Repealed 0.
Number of Sections Adopted on the Agency's Own Initiative: New 0, Amended 1, Repealed 0.
Number of Sections Adopted in Order to Clarify, Streamline, or Reform Agency Procedures: New 0, Amended 0, Repealed 0.
Number of Sections Adopted Using Negotiated Rule Making: New 0, Amended 0, Repealed 0; Pilot Rule Making: New 0, Amended 0, Repealed 0; or Other Alternative Rule Making: New 0, Amended 1, Repealed 0.
Date Adopted: October 1, 2015.
Maia D. Bellon
Director
AMENDATORY SECTION (Amending WSR 12-23-009, filed 11/8/12, effective 12/9/12)
WAC 173-351-990 Appendices.
APPENDIX I
Appendix I - Constituents for Detection Monitoring
COMMON NAME 1
CAS RN 2
Inorganic Constituents
 
1)
Antimony. . . .(Total)
2)
Arsenic. . . .(Total)
3)
Barium. . . .(Total)
4)
Beryllium. . . .(Total)
5)
Cadmium. . . .(Total)
6)
Chromium. . . .(Total)
7)
Cobalt. . . .(Total)
8)
Copper. . . .(Total)
9)
Lead. . . .(Total)
10)
Nickel. . . .(Total)
11)
Selenium. . . .(Total)
12)
Silver. . . .(Total)
13)
Thallium. . . .(Total)
14)
Vanadium. . . .(Total)
15)
Zinc. . . .(Total)
16)
Nitrate. . . .
Organic Constituents
17)
Acetone. . . .67-64-1
18)
Acrylonitrile. . . .107-13-1
19)
Benzene. . . .71-43-2
20)
Bromochloromethane. . . .74-97-5
21)
Bromodichloromethane. . . .75-27-4
22)
Bromoform; Tribromomethane. . . .75-25-2
23)
Carbon disulfide. . . .75-15-0
24)
Carbon tetrachloride. . . .56-23-5
25)
Chlorobenzene. . . .108-90-7
26)
Chloroethane; Ethyl chloride. . . .75-00-3
27)
Chloroform; Trichloromethane. . . .67-66-3
28)
Dibromochloromethane;
Chlorodibromomethane. . . .124-48-1
29)
1,2-Dibromo-3-chloropropane; DBCP. . . .96-12-8
30)
1,2-Dibromoethane;
Ethylene dibromide; EDB. . . .106-93-4
31)
o-Dichlorobenzene;
1,2-Dichlorobenzene. . . .95-50-1
32)
p-Dichlorobenzene;
1,4-Dichlorobenzene. . . .106-46-7
33)
trans-1,4-Dichloro-2-butene. . . .110-57-6
34)
1,1-Dichloroethane; Ethylidene
chloride. . . .75-34-3
35)
1,2-Dichloroethane;
Ethylene dichloride. . . .107-06-2
36)
1,1-Dichloroethylene;
1,1-Dichloroethene;
Vinylidene chloride. . . .75-35-4
37)
cis-1,2-Dichloroethylene;
cis-1,2-Dichloroethene. . . .156-59-2
38)
trans-1,2-Dichloroethylene;
trans-1,2-Dichloroethene. . . .156-60-5
39)
1,2-Dichloropropane;
Propylene dichloride. . . .78-87-5
40)
cis-1,3-Dichloropropene. . . .10061-01-5
41)
trans-1,3-Dichloropropene. . . .10061-02-6
42)
Ethylbenzene. . . .100-41-4
43)
2-Hexanone; Methyl
butyl ketone. . . .591-78-6
44)
Methyl bromide; Bromomethane. . . .74-83-9
45)
Methyl chloride; Chloromethane. . . .74-87-3
46)
Methylene bromide; Dibromomethane. . . .74-95-3
47)
Methylene chloride; Dichloromethane. . . .75-09-2
48)
Methyl ethyl ketone; MEK;
2-Butanone. . . .78-93-3
49)
Methyl iodide; lodomethane. . . .74-88-4
50)
4-Methyl-2-pentanone;
Methyl isobutyl ketone. . . .108-10-1
51)
Styrene. . . .100-42-5
52)
1,1,1,2-Tetrachloroethane. . . .630-20-6
53)
1,1,2,2-Tetrachloroethane. . . .79-34-5
54)
Tetrachloroethylene; Tetrachloroethene;
Perchloroethylene. . . .127-18-4
55)
Toluene. . . .108-88-3
56)
1,1,1-Trichloroethane;
Methyl chloroform. . . .71-55-6
57)
1,1,2-Trichloroethane. . . .79-00-5
58)
Trichloroethylene; Trichloroethene. . . .79-01-6
59)
Trichlorofluoromethane; CFC-11. . . .75-69-4
60)
1,2,3-Trichloropropane. . . .96-18-4
61)
Vinyl acetate. . . .108-05-4
62)
vinyl chloride. . . .75-01-4
63)
Xylenes. . . .1330-20-7
1
Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals.
2
Chemical Abstracts Service registry number.
APPENDIX II
GROUNDWATER QUALITY PARAMETERS
Field Parameters
pH
 
specific conductance
 
temperature
 
static water level
 
Geochemical Indicator Parameters
Calcium (Ca)
Sodium (Na)
Bicarbonate (HCO3)
Chloride (Cl)
Magnesium (Mg)
Potassium (K)
Sulfate (SO4)
Alkalinity (as Ca CO3)
Total suspended
solids (TSS)
Iron (Fe) (Dissolved)
Manganese (Mn) (Dissolved)
Leachate Indicators
Ammonia (NH3-N)
Total Organic Carbon (TOC)
Total Dissolved Solids (TDS)
APPENDIX III
List of Hazardous Inorganic and Organic Constituents.
Common Name1
CAS RN2
Chemical abstracts service index name3
Acenaphthene
83-32-9
Acenaphthylene, 1,2-dihydro-
Acenaphthylene
208-96-8
Acenaphthylene
Acetone
67-64-1
2-Propanone
Acetonitrile; Methyl cyanide
75-05-8
Acetonitrile
Acetophenone
98-86-2
Ethanone, 1-phenyl-
2-Acetylaminofluorene; 2-AAF
53-96-3
Acetamide, N-9H-fluoren-2-yl-
Acrolein
107-02-8
2-Propenal
Acrylonitrile
107-13-1
2-Propenenitrile
Aldrin
309-00-2
1,4:5,8-Dimethanonaphthalene, 1,2,3,4,10,10-hexachloro-1,4,4a,5,8,8a-hexahydro- (1α,4α,4aβ,5α,8α,8aβ)-
Allyl chloride
107-05-1
1-Propene, 3-chloro-
4-Aminobiphenyl
92-67-1
[1,1 1 -Biphenyl]-4-amine
Anthracene
120-12-7
Anthracene
Antimony
(Total)
Antimony
Arsenic
(Total)
Arsenic
Barium
(Total)
Barium
Benzene
71-43-2
Benzene
Benzo[a]anthracene; Benzanthracene
56-55-3
Benz[a]anthracene
Benzo[b]fluoranthene
205-99-2
Benz[e]acephenanthrylene
Benzo[k]fluoranthene
207-08-9
Benzo[k]fluoranthene
Benzo[ghi]perylene
191-24-2
Benzo[ghi]perylene
Benzo[a]pyrene
50-32-8
Benzo[a]pyrene
Benzyl alcohol
100-51-6
Benzenemethanol
Beryllium
(Total)
Beryllium
alpha-BHC
319-84-6
Cyclohexane, 1,2,3,4,5,6-hexachloro-, (1α,2α,3β,4α,5β,6β)-
beta-BHC
319-85-7
Cyclohexane, 1,2,3,4,5,6-hexachloro-, (1α,2β,3α,4β,5α,6β)-
delta-BHC
319-86-8
Cyclohexane, 1,2,3,4,5,6-hexachloro-, (1α,2α,3α,4β,5α,6β)-
gamma-BHC; Lindane
58-89-9
Cyclohexane, 1,2,3,4,5,6-hexachloro-, (1α,2α,3β,4α,5α,6β)-
Bis(2-chloroethoxy)methane
111-91-1
Ethane, 1,1 1 -[methylenebis(oxy)]bis[2-chloro-
Bis(2-chloroethyl) ether; Dichloroethyl ether
111-44-4
Ethane, 1,1 1 -oxybis[2-chloro-
Bis-(2-chloro-1-methylethyl) ether; 2,2 1 -
108-60-1
Propane, 2,2 1 -oxybis[1-chloro-
Dichlorodiisopropyl ether;
DCIP, See note 4
Bis(2-ethylhexyl) phthalate
117-81-7
1,2-Benzenedicarboxylic acid, bis(2-ethylhexyl) ester
Bromochloromethane; Chlorobromomethane
74-97-5
Methane, bromochloro-
Bromodichloromethane; Dibromochloromethane
75-27-4
Methane, bromodichloro-
Bromoform; Tribromomethane
75-25-2
Methane, tribromo-
4-Bromophenyl phenyl ether
101-55-3
Benzene, 1-bromo-4-phenoxy-
Butyl benzyl phthalate; Benzyl butyl phthalate
85-68-7
1,2-Benzenedicarboxylic acid, butyl phenylmethyl ester
Cadmium
(Total)
Cadmium
Carbon disulfide
75-15-0
Carbon disulfide
Carbon tetrachloride
56-23-5
Methane, tetrachloro-
Chlordane
See Note 5
4,7-Methano-1H-indene, 1,2,4,5, 6,7,8,8-octachloro-2,3,3a,4,7, 7a-hexahydro-
p-Chloroaniline
106-47-8
Benzenamine, 4-chloro-
Chlorobenzene
108-90-7
Benzene, chloro-
Chlorobenzilate
510-15-6
Benzeneacetic acid, 4-chloro-α-(4-chlorophenyl)-α-hydroxy-, ethyl ester
p-Chloro-m-cresol; 4-Chloro-3-methylphenol
59-50-7
Phenol, 4-chloro-3-methyl-
Chloroethane; Ethyl chloride
75-00-3
Ethane, chloro-
Chloroform; Trichloromethane
67-66-3
Methane, trichloro-
2-Chloronaphthalene
91-58-7
Naphthalene, 2-chloro-
2-Chlorophenol
95-57-8
Phenol, 2-chloro-
4-Chlorophenyl phenyl ether
7005-72-3
Benzene, 1-chloro-4-phenoxy-
Chloroprene
126-99-8
1,3-Butadiene, 2-chloro-
Chromium
(Total)
Chromium
Chrysene
218-01-9
Chrysene
Cobalt
(Total)
Cobalt
Copper
(Total)
Copper
m-Cresol; 3-methylphenol
108-39-4
Phenol, 3-methyl-
o-Cresol; 2-methylphenol
95-48-7
Phenol, 2-methyl-
p-Cresol; 4-methylphenol
106-44-5
Phenol, 4-methyl-
Cyanide
57-12-5
Cyanide
2,4-D; 2,4-Dichlorophenoxyacetic acid
94-75-7
Acetic acid, (2,4-dichlorophenoxy)-
4,4'-DDD
72-54-8
Benzene 1,1 1 -(2,2-dichloroethylidene)bis[4-chloro-
4,4'-DDE
72-55-9
Benzene, 1,1 1 -(dichloroethyenylidene)bis[4-chloro-
4,4'-DDT
50-29-3
Benzene, 1,1 1 -(2,2,2-trichloroethylidene)bis[4-chloro-
Diallate
2303-16-4
Carbamothioic acid, bis(1-methylethyl)-,S-(2,3-dichloro-2-propenyl) ester
Dibenz[a,h]anthracene
53-70-3
Dibenz[a,h]anthracene
Dibenzofuran
132-64-9
Dibenzofuran
Dibromochloromethane; Chlorodibromomethane
124-48-1
Methane, dibromochloro-
1,2-Dibromo-3-chloropropane; DBCP
96-12-8
Propane, 1,2-dibrome-3-chloro-
1,2-Dibromoethane; Ethylene dribromide; EDB
106-93-4
Ethane, 1,2-dibromo-
Di-n-butyl phthalate
84-74-2
1,2-Benzenedicarboxylic acid, dibutyl ester
o-Dichlorobenzene; 1,2-Dichlorobenzene
95-50-1
Benzene, 1,2-dichloro-
m-Dichlorobenzene; 1,3-Dichlorobenzene
541-73-1
Benzene, 1,3-Dichloro-
p-Dichlorobenzene; 1,4-Dichlorobenzene
106-46-7
Benzene, 1,4-dichloro-
3,3'-Dichlorobenzidine
91-94-1
[1,1 1 -Biphenyl]-4,4 1 -diamine, 3,3 1 -dichloro-
trans-1,4-Dichloro-2-butene
110-57-6
2-Butene, 1,4-dichloro-, (E)-
Dichlorodifluoromethane; CFC 12;
75-71-8
Methane, dichlorodifluoro-
1,1-Dichloroethane; Ethyldidene chloride
75-34-3
Ethane, 1,1-dichloro-
1,2-Dichloroethane; Ethylene dichloride
107-06-2
Ethane, 1,1-dichloro-
1,1-Dichloroethylene; 1,1-Dichloroethene; Vinylidene chloride
75-35-4
Ethene, 1,1-dichloro-
cis-1,2-Dichloroethylene; cis-1,2-Dichloroethene
156-59-2
Ethene, 1,2-dichloro-, (Z)-
trans-1,2-Dichloroethylene; trans-1,2-Dichloroethene
156-60-5
Ethene, 1,2-dichloro-, (E)-
2,4-Dichlorophenol
120-83-2
Phenol, 2,4-dichloro-
2,6-Dichlorophenol
87-65-0
Phenol, 2,6-dichloro-
1,2-Dichloropropane; Propylene dichloride
78-87-5
Propane, 1,2-dichloro-
1,3-Dichloropropane; Trimethylene dichloride
142-28-9
Propane, 1,3-dichloro-
2,2-Dichloropropane; Isopropylidene chloride
594-20-7
Propane, 2,2-dichloro-
1,1-Dichloropropene
563-58-6
1-Propene, 1,1-dichloro-
cis-1,3-Dichloropropene
10061-01-5
1-Propene, 1,3-dichloro-, (Z)-
trans-1,3-Dichloropropene
10061-02-6
1-Propene, 1,3-dichloro-, (E)-
Dieldrin
60-57-1
2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexa, chloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1aα,2β,2aα,3β,6β, 6aα,7β,7aα)-
Diethyl phthalate
84-66-2
1,2-Benzenedicarboxylic acid, diethyl ester
0,0-Diethyl 0-2-pyrazinyl phosphorothioate; Thionazin
297-97-2
Phosphorothioic acid, 0,0-diethyl 0-pyrazinyl ester
Dimethoate
60-51-5
Phosphorodithioic acid, 0,0-dimethyl S-[2-(methylamino)-2-oxoethyl] ester
p-(Dimethylamino)azobenzene
60-11-7
Benzenamine, N,N-dimethyl-4-(phenylazo)-
7,12-Dimethylbenz[a]anthracene
57-97-6
Benz[a]anthracene, 7,12-dimethyl-
3,3'-Dimethylbenzidine
119-93-7
[1,1 1 -Biphenyl]-4,4 1 -diamine, 3,3 1 -dimethyl-
alpha, alpha-Dimethylphenethylamine
122-09-8
Benzeneethanamine, α,α-dimethyl-
2,4-Dimethylphenol; m-Xylenol
105-67-9
Phenol, 2,4-dimethyl-
Dimethyl phthalate
131-11-3
1,2-Benzenedicarboxylic acid, dimethyl ester
m-Dinitrobenzene
99-65-0
Benzene, 1,3-dinitro-
4,6-Dinitro-o-cresol 4,6-Dinitro-2-methylphenol
534-52-1
Phenol, 2-methyl-4,6-dinitro
2,4-Dinitrophenol;
51-28-5
Phenol, 2,4-dinitro-
2,4-Dinitrotoluene
121-14-2
Benzene, 1-methyl-2,4-dinitro-
2,6-Dinitrotoluene
606-20-2
Benzene, 2-methyl-1,3-dinitro-
Dinoseb; DNBP; 2-sec-Butyl-4,6-dinitrophenol
88-85-7
Phenol, 2-(1-methylpropyl)-4,6-dinitro-
Di-n-octyl phthalate
117-84-0
1,2-Benzenedicarboxylic acid, dioctyl ester
Diphenylamine
122-39-4
Benzenamine, N-phenyl-
Disulfoton
298-04-4
Phosphorodithioic acid, 0,0-diethyl S-[2-(ethylthio)ethyl] ester
Endosulfan I
959-98-8
6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10,10-hexa-chloro-1,5,5a,6,9,9a-hexahydro-, 3-oxide,
Endosulfan II
33213-65-9
6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10, 10-hexa- chloro-1,5,5a,6,9,9a-hexahydro-, 3-oxide, (3α,5aα, 6β,9β,9aα)-
Endosulfan sulfate
1031-07-8
6,9-Methano-2,4,3-benzodioxathiepin, 6,7,8,9,10, 10-hexa- chloro-1,5,5a,6,9,9a-hexahydro-,3-3-dioxide
Endrin
72-20-8
2,7:3,6-Dimethanonaphth[2,3-b]oxirene, 3,4,5,6,9,9-hexachloro-1a,2,2a,3,6,6a,7,7a-octahydro-, (1aα, 2β,2aβ,3α,6α, 6aβ,7β,7aα)-
Endrin aldehyde
7421-93-4
1,2,4-Methenocyclopenta[cd]pentalene-5-carboxaldehyde, 2,2a,3,3,4,7-hexachlorodecahydro-, (1α,2β, 2aβ,4β,4aβ,5β,6aβ,6bβ,7R*)-
Ethylbenzene
100-41-4
Benzene, ethyl-
Ethyl methacrylate
97-63-2
2-Propenoic acid, 2-methyl-, ethyl ester
Ethyl methanesulfonate
62-50-0
Methanesulfonic acid, ethyl ester
Famphur
52-85-7
Phosphorothioic acid, 0-[4-[(dimethylamino)sulfonyl]pheny l] 0,0-dimethyl ester
Fluoranthene
206-44-0
Fluoranthene
Fluorene
86-73-7
9H-Fluorene
Heptachlor
76-44-8
4,7-Methano-1H-indene, 1,4,5,6, 7,8,8-heptachloro-3a,4,7,7a-tetrahydro-
Heptachlor epoxide
1024-57-3
2,5-Methano-2H-indeno[1,2-b]oxirene, 2,3,4,5,6,7,7-heptachloro-1a,1b,5,5a,6,6a-hexahydro-, (1aα, 1bβ, 2α, 5α, 5aβ, 6β, 6aα)
Hexachlorobenzene
118-74-1
Benzene, hexachloro-
Hexachlorobutadiene
87-68-3
1,3-Butadiene, 1,1,2,3,4,4-hexachloro-
Hexachlorocyclopentadiene
77-47-4
1,3-Cyclopentadiene, 1,2,3,4,5, 5-hexachloro-
Hexachloroethane
67-72-1
Ethane, hexachloro-
Hexachloropropene
1888-71-7
1-Propene, 1,1,2,3,3,3-hexachloro-
2-Hexanone; Methyl butyl ketone
591-78-6
2-Hexanone
Indeno(1,2,3-cd)pyrene
193-39-5
Indeno(1,2,3-cd)pyrene
Isobutyl alcohol
78-83-1
1-Propanol, 2-methyl-
Isodrin
465-73-6
1,4,5,8-Dimethanonaphthalene,1, 2,3,4,10,10- hexachloro-1,4,4a, 5,8,8a hexahydro- (1α,4α,4aβ, 5β,8β,8aβ)-
Isophorone
78-59-1
2-Cyclohexen-1-one, 3,5,5-trimethyl-
Isosafrole
120-58-1
1,3-Benzodioxole, 5-(1-propenyl)-
Kepone
143-50-0
1,3,4-Metheno-2H-cyclobuta[cd]pentalen-2-one, 1, 1a,3,3a,4,5,5,5a,5b,6-decachlorooctahydro-
Lead
(Total)
Lead
Mercury
(Total)
Mercury
Methacrylonitrile
126-98-7
2-Propenenitrile, 2-methyl-
Methapyrilene
91-80-5
1,2-Ethanediamine, N.N-dimethyl-N 1 -2-pyridinyl-N1/2-thienylmethyl)-
Methoxychlor
72-43-5
Benzene,1,1 1 -(2,2,2, trichloroethylidene)bis[4-methoxy-
Methyl bromide; Bromomethane
74-83-9
Methane, bromo-
Methyl chloride; Chloromethane
74-87-3
Methane, chloro-
3-Methylcholanthrene
56-49-5
Benz[j]aceanthrylene, 1,2-dihydro-3-methyl-
Methyl ethyl ketone; MEK; 2-Butanone
78-93-3
2-Butanone
Methyl iodide; Iodomethane
74-88-4
Methane, iodo-
Methyl methacrylate
80-62-6
2-Propenoic acid, 2-methyl-, methyl ester
Methyl methanesulfonate
66-27-3
Methanesulfonic acid, methyl ester
2-Methylnaphthalene
91-57-6
Naphthalene, 2-methyl-
Methyl parathion; Parathion methyl
298-00-0
Phosphorothioic acid, 0,0-dimethyl
4-Methyl-2-pentanone; Methyl isobutyl ketone
108-10-1
2-Pentanone, 4-methyl-
Methylene bromide; Dibromomethane
74-95-3
Methane, dibromo-
Methylene chloride; Dichloromethane
75-09-2
Methane, dichloro-
Naphthalene
91-20-3
Naphthalene
1,4-Naphthoquinone
130-15-4
1,4-Naphthalenedione
1-Naphthylamine
134-32-7
1-Naphthalenamine
2-Naphthylamine
91-59-8
2-Naphthalenamine
Nickel
(Total)
Nickel
o-Nitroaniline; 2-Nitroaniline
88-74-4
Benzenamine, 2-nitro-
m-Nitroaniline; 3-Nitroanile
99-09-2
Benzenamine, 3-nitro-
p-Nitroaniline; 4-Nitroaniline
100-01-6
Benzenamine, 4-nitro
Nitrobenzene
98-95-3
Benzene, nitro-
o-Nitrophenol; 2-Nitrophenol
88-75-5
Phenol, 2-nitro-
p-Nitrophenol; 4-Nitrophenol
100-02-7
Phenol, 4-nitro-
N-Nitrosodi-n-butylamine
924-16-3
1-Butanamine, N-butyl-N-nitroso-
N-Nitrosodiethylamine
55-18-5
Ethanamine, N-ethyl-N-nitroso-
N-Nitrosodimethylamine
62-75-9
Methanamine, N-methyl-N-nitroso-
N-Nitrosodiphenylamine
86-30-6
Benzenamine, N-nitroso-N-phenyl-
N-Nitrosodipropylamine; N-Nitroso-N-dipropylamine; Di-n-propylnitrosamine
621-64-7
1-Propanamine, N-nitroso-N-propyl-
N-Nitrosomethylethalamine
10595-95-6
Ethanamine, N-methyl-N-nitroso-
N-Nitrosopiperidine
100-75-4
Piperidine, 1-nitroso-
N-Nitrosopyrrolidine
930-55-2
Pyrrolidine, 1-nitroso-
5-Nitro-o-toluidine
99-55-8
Benzenamine, 2-methyl-5-nitro-
Parathion
56-38-2
Phosphorothioic acid, 0,0-diethyl 0-(4-nitrophenyl) ester
Pentachlorobenzene
608-93-5
Benzene, pentachloro-
Pentachloronitrobenzene
82-68-8
Benzene, pentachloronitro-
Pentachlorophenol
87-86-5
Phenol, pentachloro-
Phenacetin
62-44-2
Acetamide, N-(4-ethoxyphenl)
Phenanthrene
85-01-8
Phenanthrene
Phenol
108-95-2
Phenol
p-Phenylenediamine
106-50-3
1,4-Benzenediamine
Phorate
298-02-2
Phosphorodithioic acid, 0,0-diethyl S-[(ethylthio)methyl] ester
Polychlorinated biphenyls; PCBs; Aroclors
See Note 6
1,1'-Biphenyl, chloro derivatives
Pronamide
23950-58-5
Benzamide, 3,5-dichloro-N-(1,1-dimethyl-2-propynyl)-
Propionitrile; Ethyl cyanide
107-12-0
Propanenitrile
Pyrene
129-00-0
Pyrene
Safrole
94-59-7
1,3-Benzodioxole, 5-(2-propenyl)-
Selenium
(Total)
Selenium
Silver
(Total)
Silver
Silvex; 2,4,5-TP
93-72-1
Propanoic acid, 2-(2,4,5-trichlorophenoxy)-
Styrene
100-42-5
Benzene, ethenyl-
Sulfide
18496-25-8
Sulfide
2,4,5-T; 2,4,5-Trichlorophenoxyacetic acid
93-76-5
Acetic acid, (2,4,5-trichlorophenoxy)-
2,3,7,8-TCDD; 2,3,7,8-Tetrachlorodibenzo-p-dioxin
1746-01-6
Dibenzo[b,e][1,4]dioxin, 2,3,7,8-tetrachloro-
1,2,4,5-Tetrachlorobenzene
95-94-3
Benzene, 1,2,4,5-tetrachloro-
1,1,1,2-Tetrachloroethane
630-20-6
Ethane, 1,1,1,2-tetrachloro-
1,1,2,2-Tetrachloroethane
79-34-5
Ethane, 1,1,2,2-tetrachloro-
Tetrachloroethylene; Tetrachloroethene; Perchloroethylene
127-18-4
Ethene, tetrachloro-
2,3,4,6-Tetrachlorophenol
58-90-2
Phenol, 2,3,4,6-tetrachloro-
Thallium
(Total)
Thallium
Tin
(Total)
Tin
Toluene
108-88-3
Benzene, methyl-
o-Toluidine
95-53-4
Benzenamine, 2-methyl-
Toxaphene
See
Note 7
Toxaphene
1,2,4-Trichlorobenzene
120-82-1
Benzene, 1,2,4-trichloro-
1,1,1-Trichloroethane; Methylchloroform
71-55-6
Ethane, 1,1,1-trichloro-
1,1,2-Trichloroethane
79-00-5
Ethane, 1,1,2-trichloro-
Trichloroethylene; Trichloroethene
79-01-6
Ethene, trichloro-
Trichlorofluoromethane; CFC-11
75-69-4
Methane, trichlorofluoro-
2,4,5-Trichlorophenol
95-95-4
Phenol, 2,4,5-trichloro-
2,4,6-Trichlorophenol
88-06-2
Phenol, 2,4,6-trichloro-
1,2,3-Trichloropropane
96-18-4
Propane, 1,2,3-trichloro-
0,0,0-Triethyl phosphorothioate
126-68-1
Phosphorothioic acid, 0,0,0-triethylester
sym-Trinitrobenzene
99-35-4
Benzene, 1,3,5-trinitro-
Vanadium
(Total)
Vanadium
Vinyl acetate
108-05-4
Acetic acid, ethenyl ester
Vinyl chloride; Chloroethene
75-01-4
Ethene, chloro-
Xylene (total)
See
Note 8
Benzene, dimethyl-
Zinc
(Total)
Zinc
Notes:
 
1
Common names are those widely used in government regulations, scientific publications, and commerce; synonyms exist for many chemicals.
2
Chemical Abstracts Service registry number. Where "Total'' is entered, all species in the groundwater that contain this element are included.
3
CAS index are those used in the 9th Collective Index.
4
This substance is often called Bis(2-chloroisopropyl) ether, the name Chemical Abstracts Service applies to its noncommercial isomer, Propane, 2,2''-oxybis[2-chloro- (CAS RN 39638-32-9).
5
Chlordane: This entry includes alpha-chlordane (CAS RN 5103-71-9), beta-chlordane (CAS RN 5103-74-2), gamma-chlordane (CAS RN 5566-34-7), and constituents of chlordane (CAS RN 57-74-9 and CAS RN 12789-03-6).
6
Polychlorinated biphenyls (CAS RN 1336-36-3); this category contains congener chemicals, including constituents of Aroclor 1016 (CAS RN 12674-11-2), Aroclor 1221 (CAS RN 11104-28-2), Aroclor 1232 (CAS RN 11141-16-5), Aroclor 1242 (CAS RN 53469-21-9), Aroclor 1248 (CAS RN 12672-29-6), Aroclor 1254 (CAS RN 11097-69-1), and Aroclor 1260 (CAS RN 11096-82-5).
7
Toxaphene: This entry includes congener chemicals contained in technical toxaphene (CAS RN 8001-35-2), i.e., chlorinated camphene.
8
Xylene (total): This entry includes o-xylene (CAS RN 96-47-6), m-xylene (CAS RN 108-38-3), p-xylene (CAS RN 106-42-3), and unspecified xylenes (dimethylbenzenes) (CAS RN 1330-20-7).
Reviser's note: The brackets and enclosed material in the text of the above section occurred in the copy filed by the agency.
Reviser's note: The brackets and enclosed material in the text of the above section occurred in the copy filed by the agency and appear in the Register pursuant to the requirements of RCW 34.08.040.