To what standard should leaks from non-residential underground storage tank systems that store heating oil or gasoline be remediated?

Oil or gasoline contamination originating from non-residential underground storage tank systems should be remediated to the standards set forth in the Remediation Standard Regulations (RSRs). The authority for this requirement is found in the Underground Storage Tank Regulations, Section 22a-449 (d)-106 (b)(2), Corrective Action, which states that the owner or operator of a UST system that discharges regulated substances without a permit must restore the environment to a condition and quality acceptable to the Commissioner. Unless otherwise specified by the Commissioner, the RSRs indicate the environmental condition and quality acceptable to the Commissioner. If I see an oil or chemical spill, what should I do? Report it to the Emergency Response and Spill Prevention Division at (860) 424-3338 or toll free at 866-DEP-SPIL (866-337-7745). This line operates 24 hours a day.  more