Regulation .04 Existing Gasoline UST System.
Regulation .04 Existing Gasoline UST System.LinkCopy Citation
A.
An owner of an existing gasoline UST system in a HRGUA, except for an existing gasoline UST system located in Anne Arundel County, shall:
(1)
Not later than July 25, 2005, implement the following release detection methods:
(a)
Sample each site supply well and any existing groundwater monitoring wells located on the oil storage facility;
(b)
Install a minimum of three groundwater monitoring wells that are:
(i)
Constructed in accordance with COMAR 26.04.04 and Department specifications;
(ii)
Outside of the excavation zone;
(iii)
In locations that will allow for the determination of groundwater flow; and
(iv)
Placed in areas that are most likely to detect a spill, release, or discharge from the UST system;
(c)
Sample each groundwater monitoring well installed pursuant to §A(1)(b) of this regulation; and
(d)
Analyze each water sample collected pursuant to §A(1)(a) and (c) of this regulation in accordance with Regulation .05 of this chapter;
(2)
On an annual basis, collect and analyze water samples from each site supply well and groundwater monitoring well in accordance with §A(1)(a), (c) and (d) of this regulation;
(3)
Within 60 days after conducting a sample collection pursuant to §A(1) or (2) of this regulation, submit the following documents to the Department:
(a)
A complete laboratory report that includes a copy of the laboratory sample acceptance form, sample chain-of-custody, and laboratory analytical results; and
(b)
A site map identifying each site supply well and groundwater monitoring well located on the oil storage facility; and
(4)
Except for a UST system with Stage II piping decommissioned using a method approved by the Department, not later than January 26, 2006, and on a 24-month basis thereafter, test the UST system in accordance with the following procedures:
(a)
Test all primary piping that does not contain liquid gasoline, 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;
(b)
If leaks or deficiencies are found during the testing, make necessary repairs in accordance with COMAR 26.10.04.04; and
(c)
Upon completion of a repair, retest the UST system in accordance with §A(4)(a) of this regulation to ensure the UST system does not leak.
B.
An owner of an existing gasoline UST system in a WHPA shall:
(1)
Not later than January 1, 2010, implement the following release detection methods:
(a)
Sample any existing groundwater monitoring well, and if present, site supply well located on the oil storage facility;
(b)
Install a minimum of three groundwater monitoring wells that are:
(i)
Constructed in accordance with COMAR 26.04.04 and Department specifications;
(ii)
Outside of the excavation zone;
(iii)
In locations that will allow for the determination of groundwater flow; and
(iv)
Placed in areas that are most likely to detect a spill, release, or discharge from the UST system;
(c)
Sample each groundwater monitoring well installed pursuant to §B(1)(b) of this regulation; and
(d)
Analyze each water sample collected pursuant to §B(1)(a) and (c) of this regulation in accordance with Regulation .05 of this chapter;
(2)
On an annual basis, collect and analyze water samples from each groundwater monitoring well, and if present, site supply well in accordance with §B(1)(a), (c) and (d) of this regulation;
(3)
Within 60 days after conducting a sample collection pursuant to §B(1) or (2) of this regulation, submit the following documents to the Department:
(a)
A complete laboratory report that includes a copy of the laboratory sample acceptance form, sample chain-of-custody, and laboratory analytical results; and
(b)
A site map identifying each groundwater monitoring well, and if present, site supply well located on the oil storage facility; and
(4)
Except for a UST system with Stage II piping decommissioned using a method approved by the Department, not later than January 1, 2010, and on a 24-month basis thereafter test the UST system in accordance with the following procedures:
(a)
Test all primary piping that does not contain liquid gasoline, 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;
(b)
If leaks or deficiencies are found during the testing, make necessary repairs in accordance with COMAR 26.10.04.04; and
(c)
Upon completion of a repair, retest the UST system in accordance with §B(4)(a) of this regulation to ensure the UST system does not leak.