Md. Code Regs. 26.10.02.03-4

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

Section 26.10.02.03-4 - Existing Gasoline UST System

A. The owner of an existing gasoline UST system in a high risk groundwater use area served by one or more individual water supply systems, as defined in COMAR 26.04.03.01 -1B(8), shall:

(1) Use a method approved by the Department to:

(a) Test all spill catchment basins and containment sumps in accordance with COMAR 26.10.03.03;

(b) Sample each site supply well, and any existing monitoring wells within 180 days of January 26, 2005;

(c) Install, in accordance with COMAR 26.04.04 and sample a minimum of three groundwater monitoring wells outside the UST excavation area in locations that will determine groundwater flow and detect a release from the UST system within 180 days of January 26, 2005;

(d) Test water samples obtained in §A(1)(b) and (c) of this regulation in accordance with Regulation .03-3 of this chapter; and

(e) Sample and test annually thereafter, as required in §A(1)(b)-(d) of this regulation; and

(2) Within 1 year of January 26, 2005, and every 2 years thereafter:

(a) Test all primary piping that does not contain liquid gasoline, including tank top fittings, Stage II piping, riser pipes, and vent piping using a helium pressure test, or other test approved by the Department, in accordance with procedures prescribed by the Department; and

(b) Repair any leaks or deficiencies found during the testing required by this regulation and retest in accordance with this subsection to insure the system does not leak.

B. The owner of an existing gasoline UST system in a well head protection area, as defined in Regulation .03B(7) of this chapter, shall:

(1) Use a method approved by the Department to:

(a) Test all spill catchment basins and containment sumps in accordance with COMAR 26.10.03.03;

(b) Sample any existing monitoring wells by January 1, 2010;

(c) By January 1, 2010, install, in accordance with COMAR 26.04.04, and sample a minimum of three groundwater monitoring wells outside the UST excavation area in locations that will determine groundwater flow and detect a release from the UST system;

(d) Test water samples obtained in §B(1)(b) and (c) of this regulation in accordance with Regulation .03-3 of this chapter; and

(e) Sample and test annually thereafter, as required in §B(1)(c)-(d) of this regulation; and

(2) By January 1, 2010, and every 2 years thereafter:

(a) Test all primary piping that does not contain liquid gasoline, including tank top fittings, Stage II piping, riser pipes, and vent piping using a helium pressure test, or other test approved by the Department, in accordance with procedures prescribed by the Department; and

(b) Repair any leaks or deficiencies found during the testing required by this regulation and retest in accordance with this subsection to insure the system does not leak.

Md. Code Regs. 26.10.02.03-4

Regulations .03-4 adopted as an emergency provision effective January 26, 2005 (32:4 Md. R. 404); emergency provision extended at 32:15 Md. R. 1315
Regulations .03-4 adopted effective January 16, 2006 (33:1 Md. R. 37)
Regulation .03-4 amended effective January 12, 2009 (36:1 Md. R. 25)