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310 CMR 40.0974(2): TABLE 1++

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

ug/liter
(ppb)

GW-2
Standard

ug/liter
(ppb)

GW-3
Standard

ug/liter
(ppb)

ACENAPHTHENE

83-32-9

20

NA

6,000

ACENAPHTHYLENE

208-96-8

30

10,000

40

ACETONE

67-64-1

6,300

50,000

50,000

ALDRIN

309-00-2

0.5

2

20

ALIPHATIC HYDROCARBONS (See Petroleum Hydrocarbons)

ANTHRACENE

120-12-7

60

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

2,000

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

0.9

200

50,000

BIS(2-CHLOROETHYL)ETHER

111-44-4

30

30

50,000

BIS(2-CHLOROISOPROPYL)ETHER

39638-32-9

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

4

CARBON TETRACHLORIDE

56-23-5

5

2

5,000

CHLORDANE

12789-03-6

2

NA

2

CHLOROANILINE, p-

106-47-8

20

50,000

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

2,000

2,000

DICHLOROBENZENE, 1,3- (m-DCB)

541-73-1

40

2,000

50,000

DICHLOROBENZENE, 1,4- (p-DCB)

106-46-7

5

200

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

1,000

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

100

50,000

DICHLOROETHYLENE, TRANS-1,2-

156-60-5

100

90

50,000

DICHLOROMETHANE

75-09-2

5

10,000

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

30,000

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

3

6,000

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

30

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

1

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

1,000

20,000

NICKEL

7440-02-0

100

NA

200

PENTACHLOROPHENOL

87-86-5

1

NA

200

PERCHLORATE

-

2

NA

1,000

PETROLEUM HYDROCARBONS

TOTAL PETROLEUM HYDROCARBON +

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

7,000

50,000

C11 through C22 Aromatic Hydrocarbons

NA

200

50,000

5,000

PHENANTHRENE

85-01-8

40

NA

10,000

PHENOL

108-95-2

1000

50,000

2,000

POLYCHLORINATED BIPHENYLS (PCBs)

1336-36-3

0.5

5

10

PYRENE

129-00-0

80

NA

20

SELENIUM

7782-49-2

50

NA

100

RDX

121-82-4

1

50,000

50,000

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

50

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

2,000

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

30

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

9,000

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 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.

++ - The Department periodically reviews the scientific basis for these Standards and amends them, as appropriate, to incorporate new scientific information.