Maine Cleanup Standards for Hydrocarbon Contaminated Groundwater

Product

Parameter/ Constituent

Lab Test Protocol & Number

Detection Level

Action Level

Cleanup Level
Gasoline

 

Benzene

524.2 or 8260

0.5µg/L

2.5µg/L

5µg/L*

MTBE

524.2 or 8260

1µg/L

25µg/L

35µg/L*

Total Gasoline

GRO (4.2.17)

10µg/L

25µg/L

50µg/L*
Diesel

Total Fuel Oil

DRO (4.1.25)

50µg/L

50µg/L

50µg/L*

Note: Maine DEP uses a decision tree approach to establish remediation standards. Four categories of sites are Baseline 1 (BL-1), Baseline 2 (BL-2), Intermediate (IN), and Stringent (ST), depending upon geologic vulnerability of site and availability of public water.

* Remediation of groundwater is required at ST sites only. The State of Maine plans to reassess its Maximum Exposure Guidelines (MEGs) on which the cleanup levels for Total Gasoline and Total Fuel Oil are based.

Contact: Fred Lavallee, Maine Department of Environmental Protection, 207-287-7677

E-mail: fred.c.lavallee@state.me.us



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