Appendix A5. Groundwater Remediation Criteria

Latest version.

Discharge Limits For gasoline contaminated sites (BTEX)

Benzene	20 ppb
Toluene	200 ppb
Ethybenzene	70 ppb
Xylene (all three)	1000 ppb

For sites contaminated by petroleum, other than gasoline, such as diesel, kerosene or waste oil, the discharge shall meet the BTEX limits above and the limits for the polynuclear aromatics (PAHs) given below.

Naphthalene	5 ppb
Lead	5 ppb
pH range	6.0—12.0
Total Petroleum Hydrocarbons (TPH, diesel sites only)	1 ppb

(Res. No. 06-1167, 11-15-06)

                    
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