Section 20-5705. SPILL AND OVERFILL PREVENTION EQUIPMENT FOR NEW AND UPGRADED USTS

 

5705.1Except as provided in § 5705.3, to prevent spilling associated with the transfer of regulated substances to an UST system, each owner or operator must use spill prevention equipment (such as a spill catchment basin) that will prevent release of regulated substances when the transfer hose is detached from the fill pipe.

 

5705.2The spill prevention equipment shall have a minimum capacity of five (5) gallons. 

 

5705.3Except as provided in § 5705.5, to prevent overfilling associated with the transfer of regulated substances, each owner or operator shall use overfill prevention equipment that does the following:

 

(a)Automatically shuts off flow into the tank when the tank is no more than ninety-five percent (95%) full;

 

(b)Alerts the transfer operator when the tank is no more than ninety percent (90%) full by restricting the flow into the tank or triggering a high-level alarm;

 

(c)For tanks with a capacity of four thousand (4,000) gallons or more, equipment which will restrict flow thirty (30) minutes prior to overfilling, or automatically shut-off flow into the tank so that none of the fittings located on the top of the tank are exposed to product due to overfilling.

 

5705.4Tanks that are susceptible to over-pressurization, shall only use an automatic shutoff valve to comply with § 5705.3.

 

5705.5An owner or operator shall not be required to provide and use the spill and overfill prevention equipment specified in this section if:

 

(a)Alternative equipment is used that is determined by the Director to be no less protective of human health and the environment than the equipment specified in the other provisions of this section; or

 

(b)The UST system is filled by transfers of no more than twenty-five (25) gallons at one time.

 

authority

District of Columbia Underground Storage Tank Management Act of 1990, effective March 8, 1991, D.C. Law 8-242, D.C. Official Code, § 8-113.01 et seq. (2008 Repl.), as amended, and Mayor's Order 2006-61, dated June 14, 2006

source

Final Rulemaking published at 40 DCR 7835, 7858 (November 12, 1993); as amended by Final Rulemaking published at 46 DCR 7699 (October 1, 1999); as amended by Erratum Notice published at 53 DCR 3759 (May 5, 2006); as amended by Final Rulemaking published at 56 DCR 6678 (August 21, 2009).

EditorNote

Although Final Rulemaking published at 56 DCR 6678 (August 21, 2009) purports to amend subsection 5705.2, the text is identical to that of the Erratum Notice published at 53 DCR 3759 (May 5, 2006).