- (1) Any PST release management, abatement, investigation, corrective action or evaluation activities performed for a fee, or in connection with services for which a fee is charged, must be performed under the supervision of a certified PST consultant, except as outlined in Subsections 19-6-402(6)(b), R311-201-2(1), and R311-204-5(2).
(2) At the time of PST closure, a certified PST remover may over-excavate and properly dispose of up to 50 cubic yards of contaminated soil per facility, or another volume approved by the director, in addition to the minimum amount required for closure of the PST.
- (a) this over-excavation may be performed without the supervision of a certified PST consultant.
- (b) appropriate confirmation samples must be taken by a certified sampler in accordance with Rule R311-201 to determine the extent and degree of contamination.
KEY: hazardous substances, petroleum, underground storage tanks
Date of Last Change: November 14, 2025
Notice of Continuation: March 8, 2022
Authorizing, and Implemented or Interpreted Law: 19-6-105; 19-6-402; 19-6-403