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 1525, July 5, 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
.
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
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
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.