Md. Code Regs. 26.10.10.03

Current through Register Vol. 51, No. 22, November 1, 2024

Section 26.10.10.03 - Assessing the Site at Closure or Change-in-Service

A. Before applying for an extension for temporary closure or completing a permanent closure or change-in-service of a UST system, an owner and an operator of a UST system shall:

(1) Perform a site assessment to determine if there is evidence of a spill, release, or discharge where contamination would most likely be present; and

(2) In selecting sample types, sample locations, and measurement methods consider:

(a) The method of closure;

(b) The nature of the stored regulated substance;

(c) The type of backfill;

(d) The depth to groundwater; and

(e) Other factors appropriate for identifying the presence of a spill, release, or discharge.

B. If contaminated soil, contaminated groundwater, free product, or vapor is discovered while performing the actions under §A of this regulation or by any other manner during a UST system closure or change-in-service activities, an owner, an operator, and a person in charge of a UST system shall:

(1) Notify the Department within 2 hours of the discovery, as required in COMAR 26.10.08; and

(2) Begin performing the response and corrective actions required in COMAR 26.10.09.

Md. Code Regs. 26.10.10.03

Regulations .03 adopted effective 49:12 Md. R. 642, eff. 6/13/2022