Section 20-5703. NEW HEATING OIL UST SYSTEMS

 

5703.1Except as provided in § 5700.10, each new heating oil underground storage tank, having a capacity of one thousand and one hundred (1,100) gallons or more, installed after November 12, 1993, whether of single or double-walled construction, shall be constructed of the following:

 

(a)Fiberglass-reinforced plastic;

 

(b)Steel-fiberglass-reinforced plastic composite; or

 

(c)Steel and shall be cathodically protected in accordance with the requirements of § 5703.2.

 

5703.2Each steel tank shall be cathodically protected by being coated with a suitable dielectric material, and, in addition:

 

(a)Field-installed cathodic protection systems shall be designed by a corrosion expert; and

 

(b)Impressed current cathodic protection systems shall be designed to allow determination of current operating status as required by § 5901.6.

 

5703.3Each cathodic protection system shall be operated and maintained in accordance with § 5901.

 

5703.4 Secondary containment systems shall be designed, constructed, and installed to do the following:

 

(a) Contain regulated substances released from the tank system until they are detected and removed;

 

(b) Prevent the release of regulated substances to the environment at any time during the operational life of the UST system; and 

 

(c) In accordance with § 6003.5, check for evidence of a release at least every thirty (30) days.

 

5703.5Double-walled tanks shall be designed, constructed, and installed to do the following:

 

(a)Contain a release from any portion of the inner tank within the outer wall; and

 

(b)Detect the failure of the inner wall.

 

5703.6External liner systems (including vaults) shall be designed, constructed, and installed to do the following:

 

(a)Contain one hundred ten percent (110%) of the capacity of the largest tank within its boundary;

 

(b)Prevent the interference of precipitation or ground water intrusion with the ability to contain or detect a release of regulated substances; and

 

(c)Surround the tank completely and be capable of preventing lateral, as well as vertical migration of regulated substances.

 

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, 7855 (November 12, 1993); as amended by Final Rulemaking published at 46 DCR 7699 (October 1, 1999); as amended by Final Rulemaking published at 56 DCR 6678 (August 21, 2009).