Code of Massachusetts Regulations
310 CMR - DEPARTMENT OF ENVIRONMENTAL PROTECTION
Title 310 CMR 40.0000 - Massachusetts Contingency Plan
Subpart I - RISK CHARACTERIZATION
Section 40.0996 - Method 3 Ceiling Limits
Current through Register 1531, September 27, 2024
(1) Method 3 Ceiling Limits (M3CLs) are concentrations of oil and/or hazardous material in soil or groundwater at the disposal site which, if exceeded under the conditions specified in 310 CMR 40.0996, constitute a significant risk of harm to public welfare and the environment under future conditions.
(2) Characterization of risk of harm to public welfare and the environment shall in all cases include, but not necessarily be limited to, comparison of concentrations of oil and/or hazardous material in soil and groundwater at the disposal site with Method 3 Ceiling Limits, which are listed in 310 CMR 40.0996(7) or identified pursuant to 310 CMR 40.0996(8).
(3) Comparisons of oil and/or hazardous material concentrations in soil and groundwater at the disposal site to Method 3 Ceiling Limits shall be made using:
(4) Except as provided in 310 CMR 40.0996(5) and (6), a level of No Significant Risk of harm to public welfare and to the environment does not exist for future conditions if the concentration of one or more oil and/or hazardous material exceeds an applicable Method 3 Ceiling Limit, as described at 310 CMR 40.0996(3). The disposal site may, however, pose No Significant Risk for current conditions and thus meet the conditions of a Temporary Solution as described in 310 CMR 40.1050 if all other requirements for a Temporary Solution are satisfied.
(5) For a disposal site where the Method 3 Ceiling Limit in soil or groundwater for Total Petroleum Hydrocarbon is exceeded, a condition of No Significant Risk shall still be considered to exist if the concentrations of the Aliphatic and Aromatic Hydrocarbon Fractions comprising the TPH are less than or equal to the applicable Method 3 Ceiling Limits of such fractions in soil and groundwater.
(6) For a disposal site at which the concentration of one or more oil and/or hazardous material in Soil exceeds a Method 3 Ceiling Limit, a level of No Significant Risk of harm to public welfare and to the environment exists or has been achieved for both current and future conditions if a finding of No Significant Risk of harm to public welfare and the environment has been made pursuant to 310 CMR 40.0994 and 40.0995, respectively, an Activity and Use Limitation is implemented as required in 310 CMR 40.1012(2), and the Soil with concentrations exceeding a Method 3 Ceiling Limit:
(7) Table 6 lists the Method 3 Ceiling Limits in Groundwater and Soil.
(8) Except as specified in 310 CMR 40.0996(8)(c) for any oil or hazardous material not listed in Table 6 at 310 CMR 40.0996(7), either a default or chemical-specific Method 3 Ceiling Limit must be used.
(9) Ongoing monitoring shall be performed as necessary to ensure that a condition of No Significant Risk is maintained at any disposal site where a Permanent Solution has been achieved and the concentration of one or more oil and/or hazardous material is greater than the Method 3 Ceiling Limit. The results of such monitoring shall be submitted to the Department.
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310 CMR 40.0996(7): TABLE 6 [DOUBLE DAGGER] MCP Method 3: METHOD 3 CEILING LIMITS (M3CLs) IN GROUNDWATER AND SOIL |
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Oil and/or Hazardous Material |
CAS Number |
M3CLs IN GROUNDWATER µg/L (ppb) |
M3CLs IN SOIL µg/g (ppm) |
|
ACENAPHTHENE |
83-32-9 |
100,000 |
10,000 |
|
ACENAPHTHYLENE |
208-96-8 |
100,000 |
10,000 |
|
ACETONE |
67-64-1 |
100,000 |
10,000 |
|
ALDRIN |
309-00-2 |
300 |
40 |
|
ALIPHATIC HYDROCARBONS (See Petroleum Hydrocarbons) | |||
|
ANTHRACENE |
120-12-7 |
1,000 |
10,000 |
|
ANTIMONY |
7440-36-0 |
80,000 |
400 |
|
AROMATIC HYDROCARBONS (See Petroleum Hydrocarbons) | |||
|
ARSENIC |
7440-38-2 |
9,000 |
600 |
|
BARIUM |
7440-39-3 |
100,000 |
10,000 |
|
BENZENE |
71-43-2 |
100,000 |
10,000 |
|
BENZO(a)ANTHRACENE |
56-55-3 |
10,000 |
10,000 |
|
BENZO(a)PYRENE |
50-32-8 |
5,000 |
300 |
|
BENZO(b)FLUORANTHENE |
205-99-2 |
4,000 |
10,000 |
|
BENZO(g,h,i)PERYLENE |
191-24-2 |
500 |
10,000 |
|
BENZO(k)FLUORANTHENE |
207-08-9 |
1,000 |
10,000 |
|
BERYLLIUM |
7440-41-7 |
2,000 |
2,000 |
|
BIPHENYL, 1,1- |
92-52-4 |
100,000 |
10,000 |
|
BIS(2-CHLOROETHYL)ETHER |
111-44-4 |
100,000 |
900 |
|
BIS(2-CHLOROISOPROPYL)ETHER |
108-60-1 |
100,000 |
10,000 |
|
BIS(2-ETHYLHEXYL)PHTHALATE |
117-81-7 |
100,000 |
10,000 |
|
BROMODICHLOROMETHANE |
75-27-4 |
100,000 |
5,000 |
|
BROMOFORM |
75-25-2 |
100,000 |
10,000 |
|
BROMOMETHANE |
74-83-9 |
8,000 |
7,000 |
|
CADMIUM |
7440-43-9 |
80 |
800 |
|
CARBON TETRACHLORIDE |
56-23-5 |
50,000 |
10,000 |
|
CHLORDANE |
12789-03-6 |
20 |
600 |
|
CHLOROANILINE, p- |
106-47-8 |
100,000 |
400 |
|
CHLOROBENZENE |
108-90-7 |
10,000 |
10,000 |
|
CHLOROFORM |
67-66-3 |
100,000 |
10,000 |
|
CHLOROPHENOL, 2- |
95-57-8 |
100,000 |
4,000 |
|
CHROMIUM (TOTAL) * |
7440-47-3 |
3,000 |
2,000 |
|
CHROMIUM(III) |
16065-83-1 |
6,000 |
10,000 |
|
CHROMIUM(VI) |
18540-29-9 |
3,000 |
2,000 |
|
CHRYSENE |
218-01-9 |
700 |
10,000 |
|
CYANIDE ** |
57-12-5 |
2,000 |
5,000 |
|
DIBENZO(a,h)ANTHRACENE |
53-70-3 |
400 |
2,000 |
|
DIBROMOCHLOROMETHANE |
124-48-1 |
100,000 |
5,000 |
|
DICHLOROBENZENE, 1,2- (o-DCB) |
95-50-1 |
80,000 |
10,000 |
|
DICHLOROBENZENE, 1,3- (m-DCB) |
541-73-1 |
100,000 |
5,000 |
|
DICHLOROBENZENE, 1,4- (p-DCB) |
106-46-7 |
80,000 |
10,000 |
|
DICHLOROBENZIDINE, 3,3'- |
91-94-1 |
20,000 |
1,000 |
|
DICHLORODIPHENYL DICHLOROETHANE, P,P'- (DDD) |
72-54-8 |
500 |
700 |
|
DICHLORODIPHENYL DICHLOROETHYLENE,P,P'- (DDE) |
72-55-9 |
4,000 |
700 |
|
DICHLORODIPHENYL TRICHLOROETHANE, P,P'- (DDT) |
50-29-3 |
10 |
700 |
|
DICHLOROETHANE, 1,1- |
75-34-3 |
100,000 |
10,000 |
|
DICHLOROETHANE, 1,2- |
107-06-2 |
100,000 |
10,000 |
|
DICHLOROETHYLENE, 1,1- |
75-35-4 |
100,000 |
10,000 |
|
DICHLOROETHYLENE, CIS-1,2- |
156-59-2 |
100,000 |
5,000 |
|
DICHLOROETHYLENE, TRANS-1,2- |
156-60-5 |
100,000 |
10,000 |
|
DICHLOROMETHANE |
75-09-2 |
100,000 |
8,000 |
|
DICHLOROPHENOL, 2,4- |
120-83-2 |
100,000 |
9,000 |
|
DICHLOROPROPANE, 1,2- |
78-87-5 |
100,000 |
10,000 |
|
DICHLOROPROPENE, 1,3- |
542-75-6 |
2,000 |
10,000 |
|
DIELDRIN |
60-57-1 |
80 |
40 |
|
DIETHYL PHTHALATE |
84-66-2 |
100,000 |
10,000 |
|
DIMETHYL PHTHALATE |
131-11-3 |
100,000 |
10,000 |
|
DIMETHYLPHENOL, 2,4- |
105-67-9 |
100,000 |
10,000 |
|
DINITROPHENOL, 2,4- |
51-28-5 |
100,000 |
9,000 |
|
DINITROTOLUENE, 2,4- |
121-14-2 |
100,000 |
900 |
|
DIOXANE, 1,4- |
123-91-1 |
100,000 |
5,000 |
|
ENDOSULFAN |
115-29-7 |
100 |
5,000 |
|
ENDRIN |
72-20-8 |
50 |
300 |
|
ETHYLBENZENE |
100-41-4 |
100,000 |
10,000 |
|
ETHYLENE DIBROMIDE |
106-93-4 |
100,000 |
500 |
|
FLUORANTHENE |
206-44-0 |
2,000 |
10,000 |
|
FLUORENE |
86-73-7 |
400 |
10,000 |
|
HEPTACHLOR |
76-44-8 |
20 |
100 |
|
HEPTACHLOR EPOXIDE |
1024-57-3 |
70 |
10 |
|
HEXACHLOROBENZENE |
118-74-1 |
60,000 |
9 |
|
HEXACHLOROBUTADIENE |
87-68-3 |
30,000 |
1,000 |
|
HEXACHLOROCYCLOHEXANE, GAMMA (gamma-HCH) |
58-89-9 |
2,000 |
700 |
|
HEXACHLOROETHANE |
67-72-1 |
100,000 |
3,000 |
|
HMX |
2691-41-0 |
100,000 |
10,000 |
|
INDENO(1,2,3-cd)PYRENE |
193-39-5 |
1,000 |
10,000 |
|
LEAD |
7439-92-1 |
150 |
6,000 |
|
MERCURY |
7439-97-6 |
200 |
400 |
|
METHOXYCHLOR |
72-43-5 |
400 |
4,000 |
|
METHYL ETHYL KETONE |
78-93-3 |
100,000 |
10,000 |
|
METHYL ISOBUTYL KETONE |
108-10-1 |
100,000 |
10,000 |
|
METHYL MERCURY |
22967-92-6 |
200 |
90 |
|
METHYL TERT BUTYL ETHER |
1634-04-4 |
100,000 |
5,000 |
|
METHYLNAPHTHALENE, 2- |
91-57-6 |
100,000 |
5,000 |
|
NAPHTHALENE |
91-20-3 |
100,000 |
10,000 |
|
NICKEL |
7440-02-0 |
2,000 |
10,000 |
|
PENTACHLOROPHENOL |
87-86-5 |
2,000 |
800 |
|
PER- AND POLYFLUOROALKYL SUBSTANCES (PFAS)*** | |||
|
PERFLUORODECANOIC ACID (PFDA) |
335-76-2 |
100,000 |
4 |
|
PERFLUOROHEPTANOIC ACID (PFHpA) |
375-85-9 |
100,000 |
4 |
|
PERFLUOROHEXANESULFONIC ACID (PFHxS) |
355-46-4 |
5,000 |
4 |
|
PERFLUORONONANOIC ACID (PFNA) |
375-95-1 |
100,000 |
4 |
|
PERFLUOROOCTANESULFONIC ACID (PFOS) |
1763-23-1 |
5,000 |
4 |
|
PERFLUOROOCTANOIC ACID (PFOA) |
335-67-1 |
100,000 |
4 |
|
PERCHLORATE |
- |
10,000 |
60 |
|
PETROLEUM HYDROCARBONS | |||
|
TOTAL PETROLEUM HYDROCARBON [DAGGER] |
NA |
50,000 |
10,000 |
|
ALIPHATIC HYDROCARBONS | |||
|
C5 through C8 Aliphatic Hydrocarbons |
NA |
100,000 |
5,000 |
|
C9 through C12 Aliphatic Hydrocarbons |
NA |
100,000 |
20,000 |
|
C9 through C18 Aliphatic Hydrocarbons |
NA |
100,000 |
20,000 |
|
C19 through C36 Aliphatic Hydrocarbons |
NA |
100,000 |
20,000 |
|
AROMATIC HYDROCARBONS | |||
|
C9 through C10 Aromatic Hydrocarbons |
NA |
100,000 |
5,000 |
|
C11 through C22 Aromatic Hydrocarbons |
NA |
100,000 |
10,000 |
|
PHENANTHRENE |
85-01-8 |
100,000 |
10,000 |
|
PHENOL |
108-95-2 |
100,000 |
10,000 |
|
POLYCHLORINATED BIPHENYLS (PCBs) |
1336-36-3 |
100 |
100 |
|
PYRENE |
129-00-0 |
700 |
10,000 |
|
RDX |
121-82-4 |
100,000 |
4,000 |
|
SELENIUM |
7782-49-2 |
500 |
8,000 |
|
SILVER |
7440-22-4 |
1,000 |
2,000 |
|
STYRENE |
100-42-5 |
60,000 |
10,000 |
|
TETRACHLORODIBENZO-p-DIOXIN (TCDD), 2,3,7,8-(equivalents) |
1746-01-6 |
4.E-01 |
6.E-04 |
|
TETRACHLOROETHANE, 1,1,1,2- |
630-20-6 |
100,000 |
5,000 |
|
TETRACHLOROETHANE, 1,1,2,2- |
79-34-5 |
100,000 |
5,000 |
|
TETRACHLOROETHYLENE |
127-18-4 |
100,000 |
8,000 |
|
THALLIUM |
7440-28-0 |
30,000 |
900 |
|
TOLUENE |
108-88-3 |
100,000 |
10,000 |
|
TRICHLOROBENZENE, 1,2,4- |
120-82-1 |
100,000 |
10,000 |
|
TRICHLOROETHANE, 1,1,1- |
71-55-6 |
100,000 |
10,000 |
|
TRICHLOROETHANE, 1,1,2- |
79-00-5 |
100,000 |
5,000 |
|
TRICHLOROETHYLENE |
79-01-6 |
50,000 |
700 |
|
TRICHLOROPHENOL, 2,4,5- |
95-95-4 |
100,000 |
10,000 |
|
TRICHLOROPHENOL 2,4,6- |
88-06-2 |
50,000 |
4,000 |
|
VANADIUM |
7440-62-2 |
40,000 |
8,000 |
|
VINYL CHLORIDE |
75-01-4 |
100,000 |
1,000 |
|
XYLENES (Mixed Isomers) |
1330-20-7 |
100,000 |
10,000 |
|
ZINC |
7440-66-6 |
50,000 |
10,000 |
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NOTE: All concentrations of oil and/or hazardous material in soil are calculated and presented on a dry weight/dry weight basis. 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 listed compounds and associated CAS numbers are for the acid forms of these PFAS compounds. The information presented in Table 6 are also applicable to the respective anionic forms of these 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 (gasoline-range) 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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