How is naphthalene, which has a low soil remediation standard, being addressed?
The results of the Department study involving 14 residential No. 2 fuel oil discharges (described in http://www.nj.gov/dep/srp/guidance/rs/phcguidance.pdf) indicate that levels of regulatory concern for naphthalene (6 mg/kg for a residential exposure scenario) only were observed where the 5,100 mg/kg EPH criterion was exceeded, and therefore, where remediation would already be required. Consequently, a BN compound scan at 1,000 mg EPH/kg allows naphthalene to be evaluated on a compound-specific basis well before the EPH concentration at which the Department believes naphthalene becomes a real concern.
