Code of Massachusetts Regulations
310 CMR - DEPARTMENT OF ENVIRONMENTAL PROTECTION
Title 310 CMR 40.0000 - Massachusetts Contingency Plan
Subpart I - RISK CHARACTERIZATION
Section 40.0974 - Identification of Applicable Groundwater Standards in Method 1
Current through Register 1531, September 27, 2024
(1) The groundwater categories (GW-1, GW-2 and/or GW-3) identified for the disposal site per 310 CMR 40.0932 shall determine which column(s) of numerical standards listed in Table 1 are applicable to the groundwater. If multiple categories apply to the groundwater at the disposal site, the lowest of the applicable MCP Method 1 Groundwater Standards shall be used to characterize the risk of harm posed by the oil and/or hazardous material at the disposal site. The applicability of groundwater standards is independent of the classification of the soil at the disposal site.
(2) Table 1 Lists the Potentially Applicable MCP Method 1 Groundwater Standards.
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310 CMR 40.0974(2): TABLE 1 [DOUBLE DAGGER] MCP Method 1 GROUNDWATER STANDARDS APPLICABLE IN AREAS WHERE THE GROUNDWATER IS CONSIDERED TO BE ONE OR MORE OF THE FOLLOWING CATEGORIES PER 310 CMR 40.0932 |
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Oil and/or Hazardous Material |
CAS Number |
GW-1 Standard gg/liter (ppb) |
GW-2 Standard gg/liter (ppb) |
GW-3 Standard gg/liter (ppb) |
|
ACENAPHTHENE |
83-32-9 |
20 |
NA |
10,000 |
|
ACENAPHTHYLENE |
208-96-8 |
40 |
10,000 |
40 |
|
ACETONE |
67-64-1 |
6,300 |
50,000 |
50,000 |
|
ALDRIN |
309-00-2 |
0.5 |
2 |
30 |
|
ALIPHATIC HYDROCARBONS (See Petroleum Hydrocarbons) | ||||
|
ANTHRACENE |
120-12-7 |
100 |
NA |
30 |
|
ANTIMONY |
7440-36-0 |
6 |
NA |
8,000 |
|
AROMATIC HYDROCARBONS (See Petroleum Hydrocarbons) | ||||
|
ARSENIC |
7440-38-2 |
10 |
NA |
900 |
|
BARIUM |
7440-39-3 |
2,000 |
NA |
50,000 |
|
BENZENE |
71-43-2 |
5 |
1,000 |
10,000 |
|
BENZO(a)ANTHRACENE |
56-55-3 |
1 |
NA |
1,000 |
|
BENZO(a)PYRENE |
50-32-8 |
0.2 |
NA |
500 |
|
BENZO(b)FLUORANTHENE |
205-99-2 |
1 |
NA |
400 |
|
BENZO(g,h,i)PERYLENE |
191-24-2 |
50 |
NA |
20 |
|
BENZO(k)FLUORANTHENE |
207-08-9 |
1 |
NA |
100 |
|
BERYLLIUM |
7440-41-7 |
4 |
NA |
200 |
|
BIPHENYL, 1,1- |
92-52-4 |
2 |
200 |
50,000 |
|
BIS(2-CHLOROETHYL)ETHER |
111-44-4 |
30 |
30 |
50,000 |
|
BIS(2-CHLOROISOPROPYL)ETHER |
108-60-1 |
30 |
100 |
50,000 |
|
BIS(2-ETHYLHEXYL)PHTHALATE |
117-81-7 |
6 |
NA |
50,000 |
|
BROMODICHLOROMETHANE |
75-27-4 |
3 |
6 |
50,000 |
|
BROMOFORM |
75-25-2 |
4 |
700 |
50,000 |
|
BROMOMETHANE |
74-83-9 |
10 |
7 |
800 |
|
CADMIUM |
7440-43-9 |
5 |
NA |
8 |
|
CARBON TETRACHLORIDE |
56-23-5 |
5 |
2 |
5,000 |
|
CHLORDANE |
12789-03-6 |
2 |
NA |
2 |
|
CHLOROANILINE, p- |
106-47-8 |
20 |
30,000 |
300 |
|
CHLOROBENZENE |
108-90-7 |
100 |
200 |
1,000 |
|
CHLOROFORM |
67-66-3 |
70 |
50 |
20,000 |
|
CHLOROPHENOL, 2- |
95-57-8 |
10 |
20,000 |
7,000 |
|
CHROMIUM (TOTAL) * |
7440-47-3 |
100 |
NA |
300 |
|
CHROMIUM(III) |
16065-83-1 |
100 |
NA |
600 |
|
CHROMIUM(VI) |
18540-29-9 |
100 |
NA |
300 |
|
CHRYSENE |
218-01-9 |
2 |
NA |
70 |
|
CYANIDE ** |
57-12-5 |
200 |
NA |
30 |
|
DIBENZO(a,h)ANTHRACENE |
53-70-3 |
0.5 |
NA |
40 |
|
DIBROMOCHLOROMETHANE |
124-48-1 |
2 |
20 |
50,000 |
|
DICHLOROBENZENE, 1,2- (o-DCB) |
95-50-1 |
600 |
8,000 |
2,000 |
|
DICHLOROBENZENE, 1,3- (m-DCB) |
541-73-1 |
100 |
6,000 |
50,000 |
|
DICHLOROBENZENE, 1,4- (p-DCB) |
106-46-7 |
5 |
60 |
8,000 |
|
DICHLOROBENZIDINE, 3,3'- |
91-94-1 |
80 |
NA |
2,000 |
|
DICHLORODIPHENYL DICHLOROETHANE, P,P'- (DDD) |
72-54-8 |
0.2 |
NA |
50 |
|
DICHLORODIPHENYL DICHLOROETHYLENE,P,P'- (DDE) |
72-55-9 |
0.05 |
NA |
400 |
|
DICHLORODIPHENYL TRICHLOROETHANE, P,P'- (DDT) |
50-29-3 |
0.3 |
NA |
1 |
|
DICHLOROETHANE, 1,1- |
75-34-3 |
70 |
2,000 |
20,000 |
|
DICHLOROETHANE, 1,2- |
107-06-2 |
5 |
5 |
20,000 |
|
DICHLOROETHYLENE, 1,1- |
75-35-4 |
7 |
80 |
30,000 |
|
DICHLOROETHYLENE, CIS-1,2- |
156-59-2 |
70 |
20 |
50,000 |
|
DICHLOROETHYLENE, TRANS-1,2- |
156-60-5 |
100 |
90 |
50,000 |
|
DICHLOROMETHANE |
75-09-2 |
5 |
2,000 |
50,000 |
|
DICHLOROPHENOL, 2,4- |
120-83-2 |
10 |
30,000 |
2,000 |
|
DICHLOROPROPANE, 1,2- |
78-87-5 |
5 |
3 |
50,000 |
|
DICHLOROPROPENE, 1,3- |
542-75-6 |
0.4 |
10 |
200 |
|
DIELDRIN |
60-57-1 |
0.1 |
8 |
0.5 |
|
DIETHYL PHTHALATE |
84-66-2 |
2,000 |
50,000 |
9,000 |
|
DIMETHYL PHTHALATE |
131-11-3 |
300 |
50,000 |
50,000 |
|
DIMETHYLPHENOL, 2,4- |
105-67-9 |
60 |
40,000 |
50,000 |
|
DINITROPHENOL, 2,4- |
51-28-5 |
200 |
50,000 |
20,000 |
|
DINITROTOLUENE, 2,4- |
121-14-2 |
30 |
20,000 |
50,000 |
|
DIOXANE, 1,4- |
123-91-1 |
0.3 |
5,000 |
50,000 |
|
ENDOSULFAN |
115-29-7 |
10 |
NA |
2 |
|
ENDRIN |
72-20-8 |
2 |
NA |
5 |
|
ETHYLBENZENE |
100-41-4 |
700 |
20,000 |
5,000 |
|
ETHYLENE DIBROMIDE |
106-93-4 |
0.02 |
2 |
50,000 |
|
FLUORANTHENE |
206-44-0 |
90 |
NA |
200 |
|
FLUORENE |
86-73-7 |
40 |
NA |
40 |
|
HEPTACHLOR |
76-44-8 |
0.4 |
2 |
1 |
|
HEPTACHLOR EPOXIDE |
1024-57-3 |
0.2 |
7 |
2 |
|
HEXACHLOROBENZENE |
118-74-1 |
1 |
1 |
6,000 |
|
HEXACHLOROBUTADIENE |
87-68-3 |
0.6 |
50 |
3,000 |
|
HEXACHLOROCYCLOHEXANE, GAMMA (gamma-HCH) |
58-89-9 |
0.2 |
200 |
4 |
|
HEXACHLOROETHANE |
67-72-1 |
8 |
100 |
50,000 |
|
HMX |
2691-41-0 |
200 |
50,000 |
50,000 |
|
INDENO(1,2,3-cd)PYRENE |
193-39-5 |
0.5 |
NA |
100 |
|
LEAD |
7439-92-1 |
15 |
NA |
10 |
|
MERCURY |
7439-97-6 |
2 |
NA |
20 |
|
METHOXYCHLOR |
72-43-5 |
40 |
NA |
10 |
|
METHYL ETHYL KETONE |
78-93-3 |
4,000 |
50,000 |
50,000 |
|
METHYL ISOBUTYL KETONE |
108-10-1 |
350 |
50,000 |
50,000 |
|
METHYL MERCURY |
22967-92-6 |
0.3 |
NA |
20 |
|
METHYL TERT BUTYL ETHER |
1634-04-4 |
70 |
50,000 |
50,000 |
|
METHYLNAPHTHALENE, 2- |
91-57-6 |
10 |
2,000 |
20,000 |
|
NAPHTHALENE |
91-20-3 |
140 |
700 |
20,000 |
|
NICKEL |
7440-02-0 |
100 |
NA |
200 |
|
PENTACHLOROPHENOL |
87-86-5 |
1 |
NA |
200 |
|
PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS) *** |
- |
0.02 |
NA |
- |
|
PERFLUORODECANOIC ACID (PFDA) |
335-76-2 |
See PFAS |
NA |
40,000 |
|
PERFLUOROHEPTANOIC ACID (PFHpA) |
375-85-9 |
See PFAS |
NA |
40,000 |
|
PERFLUOROHEXANESULFONIC ACID (PFHxS) |
355-46-4 |
See PFAS |
NA |
500 |
|
PERFLUORONONANOIC ACID (PFNA) |
375-95-1 |
See PFAS |
NA |
40,000 |
|
PERFLUOROOCTANESULFONIC ACID (PFOS) |
1763-23-1 |
See PFAS |
NA |
500 |
|
PERFLUOROOCTANOIC ACID (PFOA) |
335-67-1 |
See PFAS |
NA |
40,000 |
|
PERCHLORATE |
- |
2 |
NA |
1,000 |
|
PETROLEUM HYDROCARBONS | ||||
|
TOTAL PETROLEUM HYDROCARBON [DAGGER] |
NA |
200 |
5,000 |
5,000 |
|
ALIPHATIC HYDROCARBONS | ||||
|
C5 through C8 Aliphatic Hydrocarbons |
NA |
300 |
3,000 |
50,000 |
|
C9 through C12 Aliphatic Hydrocarbons |
NA |
700 |
5,000 |
50,000 |
|
C9 through C18 Aliphatic Hydrocarbons |
NA |
700 |
5,000 |
50,000 |
|
C19 through C36 Aliphatic Hydrocarbons |
NA |
14,000 |
NA |
50,000 |
|
AROMATIC HYDROCARBONS | ||||
|
C9 through C10 Aromatic Hydrocarbons |
NA |
200 |
4,000 |
50,000 |
|
C11 through C22 Aromatic Hydrocarbons |
NA |
200 |
50,000 |
5,000 |
|
PHENANTHRENE |
85-01-8 |
50 |
NA |
10,000 |
|
PHENOL |
108-95-2 |
900 |
50,000 |
2,000 |
|
POLYCHLORINATED BIPHENYLS (PCBs) |
1336-36-3 |
0.5 |
5 |
10 |
|
PYRENE |
129-00-0 |
70 |
NA |
20 |
|
RDX |
121-82-4 |
1 |
50,000 |
50,000 |
|
SELENIUM |
7782-49-2 |
50 |
NA |
50 |
|
SILVER |
7440-22-4 |
100 |
NA |
7 |
|
STYRENE |
100-42-5 |
100 |
100 |
6,000 |
|
TETRACHLORODIBENZO-p-DIOXIN (TCDD), 2,3,7,8-(equivalents) |
1746-01-6 |
3.E-05 |
NA |
4.E-02 |
|
TETRACHLOROETHANE, 1,1,1,2- |
630-20-6 |
5 |
10 |
50,000 |
|
TETRACHLOROETHANE, 1,1,2,2- |
79-34-5 |
2 |
9 |
50,000 |
|
TETRACHLOROETHYLENE |
127-18-4 |
5 |
20 |
30,000 |
|
THALLIUM |
7440-28-0 |
2 |
NA |
3,000 |
|
TOLUENE |
108-88-3 |
1,000 |
50,000 |
40,000 |
|
TRICHLOROBENZENE, 1,2,4- |
120-82-1 |
70 |
200 |
50,000 |
|
TRICHLOROETHANE, 1,1,1- |
71-55-6 |
200 |
4,000 |
20,000 |
|
TRICHLOROETHANE, 1,1,2- |
79-00-5 |
5 |
900 |
50,000 |
|
TRICHLOROETHYLENE |
79-01-6 |
5 |
5 |
5,000 |
|
TRICHLOROPHENOL, 2,4,5- |
95-95-4 |
200 |
50,000 |
3,000 |
|
TRICHLOROPHENOL 2,4,6- |
88-06-2 |
10 |
5,000 |
500 |
|
VANADIUM |
7440-62-2 |
30 |
NA |
4,000 |
|
VINYL CHLORIDE |
75-01-4 |
2 |
2 |
50,000 |
|
XYLENES (Mixed Isomers) |
1330-20-7 |
10,000 |
3,000 |
5,000 |
|
ZINC |
7440-66-6 |
5,000 |
NA |
900 |
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NA - Not Applicable * - The Total Chromium standard is applicable in the absence of species-specific data for Chromium III and Chromium VI. ** - Cyanide expressed as Physiologically Available Cyanide (PAC). In the absence of measured Physiologically Available Cyanide, the standard is applicable to Total Cyanide. *** - The Per- and Polyfluoroalkyl Substances (PFAS) standard for GW-1 is for the sum of the concentrations of the following PFAS compounds: perfluorodecanoic acid (PFDA), perfluoroheptanoic acid (PFHpA), perfluorohexanesulfonic acid (PFHxS), perfluorononanoic acid (PFNA), perfluorooctanesulfonic acid (PFOS), and perfluorooctanoic acid (PFOA). The listed PFAS compounds and associated CAS numbers are the acid forms of these PFAS compounds. The PFAS standards presented in Table 1 also apply to the respective anionic forms of these PFAS compounds. These anions may form salts with any of a number of cations resulting in a variety of possible chemical species, each having a unique CAS number. [DAGGER]- The Total Petroleum Hydrocarbon (TPH) standard may be used as an alternative to the appropriate combinations of the Aliphatic and Aromatic Hydrocarbon Fraction standards. The use of the general TPH standard is a valid option only for C9 and greater petroleum hydrocarbons; it is not appropriate for the characterization of risks associated with lighter (gasolinerange) hydrocarbons. [DOUBLE DAGGER]The Department periodically reviews the scientific basis for these Standards and amends them, as appropriate, to incorporate new scientific information. |
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