2003 Montana

Montana 2003 Cleanup Standards for Hydrocarbon Contaminated Groundwater

TIER 1 - GROUNDWATER RSBLs AND STANDARDS TABLE This table applies to groundwater and consists of WQB-7 Human Health Standards (HHSs), where available. For compounds without WQB-7 HHSs, DEQ has developed RBSLs and included them in the table. Surface water impacts require a minimum of Tier 2 evaluation. Chemical

Effect

Basis

Groundwater Standard or RBSL (mg/L)

For Gasoline and Light Hydrocarbons measured using the Massachusetts Method for Volatile Petroleum Hydrocarbons (VPH) C5-C8 aliphatic

n

rb

350

C9-C12 aliphatic

n

bu

1000

C9-C10 aromatic

n

rb

100

MTBE

n

hhs

30

Benzene

c

hhs

5

Toluene

n

hhs

1000

Ethylbenzene

n

hhs

700

Xylenes

n

hhs

10000

Naphthalene n hhs 100 For Diesel and Heavy Hydrocarbons measured using the Massachusetts Method for Extractable Petroleum Hydrocarbons (EPH) C9-C18 aliphatic

n

bu

1000

C19-C36 aliphatic

n

bu

1000

C11-C22 aromatic Total Extractable Hydrocarbons

n n

rb rb

1000 1000

Acenaphthene

n

hhs

420

Anthracene

n

hhs

2100

Benz(a)anthracene

c

hhs

0.48

Benzo(a)pyrene

c

hhs

0.048

Benzo(b)fluoranthene

c

hhs

0.48

Benzo(k)fluoranthene

c

hhs

4.79

Chrysene

c

hhs

48

Dibenzo(a)anthracene

c

hhs

0.048

Fluoranthene

n

hhs

280

Fluorene Indeno(1,2,3-cd)pyrene

n c

hhs hhs

280 0.044

Naphthalene

n

hhs

100

Pyrene

n

hhs

960

Copyright © 2009 Association for Environmental Health and Sciences Foundation, Inc. 150 Fearing Street · Amherst, MA 01002 Phone: 413.549.5170 Fax: 413.549.0579 E-mail: [email protected]

Notes: E=Effect is either:

n=noncarcinogenic and direct contact RBSLs are based on hazard quotient of 1 or -5 c=carcinogenic and direct contact RBSLs are based on a cancer risk of 1x10 .

B=Basis is the most conservative of:

rb=risk-based screening level; hhs=WQB-7 Human Health Standard bu=adversely affects beneficial uses (foul odor or taste).

Note: The Montana RBSLs will be subject to change in the near future. Contact: Scott Gestring, Montana Department of Environmental Quality, 406-444-1388 Web Site: http://www.state.mt.us E-mail: [email protected]

Copyright © 2009 Association for Environmental Health and Sciences Foundation, Inc. 150 Fearing Street · Amherst, MA 01002 Phone: 413.549.5170 Fax: 413.549.0579 E-mail: [email protected]

Montana 2003 Cleanup Standards for Hydrocarbon Contaminated Soil

TIER1 - SURFACE SOIL (0-2ft) RBSLs (mg/kg) (includes default RBSLs) This table applies to contaminant surface soil from 0-2 feet below ground surface. Default RBSLs used to determine if a release ahs occurred at a site are provided in bold and shaded. Default RBSLs apply to the entire soils column and always apply in the absence of adequate information. Distance to water is from the sample depth to the water table. Distance to Groundwater <10 feet to Groundwater 10-20 feet to Groundwater >20 feet to Groundwater Chemical E Residential B Commercial B Residential B Commercial B Residential B Commercial For Gasoline and Light Hydrocarbons measured using Massachusetts Method for Volatile Petroleum Hydrocarbons (VPH) C5-C8 aliphatic n 13 dc 50 dc 13 dc 50 dc 13 dc 50 C9-C12 aliphatic n 100 bu 500 bu 100 bu 500 bu 100 bu 500 C9-C10 aromatic n 15 l 15 l 32 dc 50 l 32 dc 70 MTBE n 0.1 l 0.1 l 0.2 l 0.2 l 0.3 l 0.3 Benzene c 0.05 l 0.05 l 0.1 l 0.1 l 0.2 l 0.2 Toluene n 14 l 14 l 41 l 41 l 63 l 63 Ethylbenzene n 13 l 13 l 40 l 40 l 62 l 62 Xylenes n 220 l 220 l 680 l 680 l 1000 l 1000 Naphthalene n 9 l 9 l 30 l 30 l 47 l 47 For Diesel and Heavy Hydrocarbons measured using Massachusetts Method for Extractable Petroleum Hydrocarbons (EPH) C9-C18 aliphatic n 1000 bu 2500 bu 1000 bu 2500 bu 1000 bu 2500 C19-C36 aliphatic n 2500 bu 5000 bu 2500 bu 5000 bu 2500 bu 5000 C11-C22 aromatic n 120 dc 400 dc 120 dc 750 dc 120 dc 750 Acenaphthene n 160 l 160 l 530 l 530 l 590 dc 810 Anthracene n 2900 dc 3700 l 2900 dc 13000 l 2900 dc 19000 Benz(a)anthracene c 0.8 dc 6 dc 0.8 dc 6 dc 0.8 dc 6 Benzo(a)pyrene c 0.08 dc 0.6 dc 0.08 dc 0.6 dc 0.08 dc 0.6 Benzo(b)fluoranthene c 0.8 dc 6 dc 0.8 dc 6 dc 0.8 dc 6 Benzo(k)fluoranthene c 8 dc 60 dc 8 dc 60 dc 8 dc 60 Chrysene c 80 dc 630 dc 80 dc 630 dc 80 dc 630 Dibenzo(a)anthracene c 0.08 dc 0.6 dc 0.08 dc 0.6 dc 0.08 dc 0.6 Fluoranthene n 390 dc 1000 l 390 dc 3500 l 390 dc 5400 Fluorene n 160 l 160 l 390 dc 550 l 390 dc 850 Indeno(1,2,3-cd)pyrene c 0.8 dc 6 dc 0.8 dc 6 dc 0.8 dc 6 Naphthalene n 9 l 9 l 30 l 30 l 47 l 47 Pyrene n 290 l 4,950 dc 290 dc 6,170 dc 290 dc 6,170

B

dc bu l l l l l l l

bu bu dc l l dc dc dc dc dc dc l l dc l dc

Notes: E=Effect is either:

n=noncarcinogenic and direct contact RBSLs are based on hazard quotient of 0.125 for a total hazard index which does not exceed 1 or -6 c=carcinogenic and direct contact RBSLs are based on a cancer risk of 1x10 for a total cancer -5 risk which does not exceed 1x10 .

B=Basis is the most conservative of:

l=leaching from soil to groundwater; dc=residential direct contact including ingestion, inhalation and dermal; or bu=adversely affects beneficial uses (foul odor or taste).

Copyright © 2009 Association for Environmental Health and Sciences Foundation, Inc. 150 Fearing Street · Amherst, MA 01002 Phone: 413.549.5170 Fax: 413.549.0579 E-mail: [email protected]

If the leaching pathway is not the most conservative basis, residential or commercial RSBLs apply to surface soils. DEQs RBCA policy includes a ceiling concentration of 100mg/kg for the total of the gasoline range fractions and 2500mg/kg for the total of the diesel range fractions in residential soil. DEQs RBCA policy includes a ceiling concentration of 500mg/kg for the total of the gasoline range fractions and 5000mg/kg for the total of the diesel range fractions in commercial soil.

TIER1 - SUBSURFACE SOIL (>2ft) RBSLs (mg/kg) This table applies to contaminated subsurface soil (>2ft below the ground surface). Distance to water is from the sample depth to the water table. Distance to Groundwater <10 feet to Groundwater 10-20 feet to Groundwater >20 feet to Groundwater Chemical E >2ft Excavation B >2ft Excavation B >2ft Excavation B For Gasoline and Light Hydrocarbons measured using Massachusetts Method for Volatile Petroleum Hydrocarbons (VPH) C5-C8 aliphatic n 100 dc 100 dc 100 dc C9-C12 aliphatic n 500 bu 500 bu 500 bu C9-C10 aromatic n 15 l 50 l 70 l MTBE n 0.1 l 0.2 l 0.3 l Benzene c 0.05 l 0.1 l 0.2 l Toluene n 14 l 41 l 63 l Ethylbenzene n 13 l 40 l 62 l Xylenes n 220 l 680 l 1000 l Naphthalene n 9 l 30 l 47 l For Diesel and Heavy Hydrocarbons measured using Massachusetts Method for Extractable Petroleum Hydrocarbons (EPH) C9-C18 aliphatic n 5000 bu 5000 bu 5000 bu C19-C36 aliphatic n 5000 bu 5000 bu 5000 bu C11-C22 aromatic n 400 dc 1300 dc 1400 dc Acenaphthene n 160 l 530 l 810 l Anthracene n 3700 l 13000 l 19000 l Benz(a)anthracene c 13 dc 40 dc 68 dc Benzo(a)pyrene c 3 dc 12 dc 18 dc Benzo(b)fluoranthene c 45 dc 150 dc 180 dc Benzo(k)fluoranthene c 450 dc 1500 dc 1800 dc Chrysene c 1400 dc 4900 dc 7500 dc Dibenzo(a)anthracene c 6 dc 18 dc 18 dc Fluoranthene n 1000 l 3500 l 5400 l Fluorene n 160 l 550 l 850 l Indeno(1,2,3-cd)pyrene c 11 l 39 l 60 l Naphthalene n 9 l 30 l 47 l Pyrene n 4,950 l 6,890 dc 6,890 dc

Notes: E=Effect is either:

n=noncarcinogenic and direct contact RBSLs are based on hazard quotient of 0.125 for a total hazard index which does not exceed 1 or -6 c=carcinogenic and direct contact RBSLs are based on a cancer risk of 1x10 for -5 a total cancer risk which does not exceed 1x10 .

B=Basis is the most conservative of:l=leaching from soil to groundwater; dc=residential direct contact including ingestion, inhalation and dermal; or bu=adversely affects beneficial uses (foul odor or taste). If the leaching pathway is not the most conservative basis, residential or commercial RSBLs apply to surface soils.

Copyright © 2009 Association for Environmental Health and Sciences Foundation, Inc. 150 Fearing Street · Amherst, MA 01002 Phone: 413.549.5170 Fax: 413.549.0579 E-mail: [email protected]

DEQs RBCA policy includes a ceiling concentration of 100mg/kg for the total of the gasoline range fractions and 2500mg/kg for the total of the diesel range fractions in residential soil. DEQs RBCA policy includes a ceiling concentration of 500mg/kg for the total of the gasoline range fractions and 5000mg/kg for the total of the diesel range fractions in commercial soil.

Note: The Montana RBSLs will be subject to change in the near future. Contact: Scott Gestring, Montana Department of Environmental Quality, 406-444-1388 Web Site: http://www.state.mt.us

E-mail: [email protected]

Copyright © 2009 Association for Environmental Health and Sciences Foundation, Inc. 150 Fearing Street · Amherst, MA 01002 Phone: 413.549.5170 Fax: 413.549.0579 E-mail: [email protected]