9VAC25-580-190 - Reporting of suspected releases

9VAC25-580-190. Reporting of suspected releases

Owners and operators of UST systems must report to the board within 24 hours and follow the procedures in 9VAC25-580-210 for any of the following conditions:

1. The discovery by owners and operators or others of released regulated substances at the UST site or in the surrounding area (such as the presence of free product or vapors in soils, basements, sewer and utility lines, and nearby surface water);

2. Unusual operating conditions observed by owners and operators (such as the erratic behavior of product dispensing equipment, the sudden loss of product from the UST system, an unexplained presence of water in the tank, or liquid in the interstitial space of secondarily contained systems), unless:

a. The system equipment or component is found not to be releasing regulated substances to the environment;

b. Any defective system equipment or component is immediately repaired or replaced; and

c. For secondarily contained systems, except as provided for in subdivision 7 b (4) of 9VAC25-580-160, any liquid in the interstitial space not used as "part" of the interstitial monitoring method (for example, brine filled) is immediately removed.

3. Monitoring results, including investigation of an alarm, from a release detection method required under 9VAC25-580-140 and 9VAC25-580-150 that indicate a release may have occurred unless:

a. The monitoring device is found to be defective, and is immediately repaired, recalibrated or replaced, and additional monitoring does not confirm the initial result;

b. The leak is contained in the secondary containment and:

(1) Except as provided for in subdivision 7 b (4) of 9VAC25-580-160, any liquid in the interstitial space not used as "part" of the interstitial monitoring method (for example, brine filled) is immediately removed; and

(2) Any defective system equipment or component is immediately repaired or replaced;

c. In the case of inventory control, described in subdivision 1 of 9VAC25-580-160, a second month of data or in the case of manual tank gauging, a second week or month as prescribed in the chart under subdivision 2 d of 9VAC25-580-160 does not confirm the initial result or the investigation determines no release has occurred; or

d. The alarm was investigated and determined to be a nonrelease event (for example, from a power surge or caused by filling the tank during release detection testing).

(Derived from VR680-13-02 § 5.1, eff. October 25, 1989; Amended, Virginia Register Volume 34, Issue 01, eff. 1/1/2018.)

Statutory Authority: §§ 62-1.44.15 and 62.1-44.34:9 of the Code of Virginia; 42 USC § 6901 et seq.; 40 CFR "part"s 280 and 281.

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