Category Archives: National Contingency Plan

The National Contingency Plan


Confusing letters between the RMA Subcommittee and the EPA on 10 x -6 risk and Superfund.

Readers are advised to scan over 40 CFR 300 before reading our letters; our assumption was that cleanup standards/cancer risk for RMA would follow 10 x -6 as outlined in the National Contingency Plan, not 10 x -4 as applied to the Arsenal and in many CERCLA cleanups.

first letter | EPA response | SC response…then we gave up.