D.C. Mun. Regs. tit. 20, r. 20-5900

Current through Register Vol. 71, No. 36, September 6, 2024

Rule 20-5900 - SPILL AND OVERFILL CONTROL

5900.1

Each owner, operator, or agent in charge shall ensure that releases due to spilling or overfilling do not occur. In complying with the requirements of this section, the owner, operator, or agent in charge shall follow one of the following codes of practice or an alternative industry standard or code of practice approved by the Department in accordance with § 5506:

(a) National Fire Protection Associatio n Standard 385, "Standard for Tank Vehicles for Flammable and Combustible Liquids;" or

(b) American Petroleum Institute Recommended Practice RP 1007, "Loading and Unloading of MC 306/DOT 406 Cargo Tank Motor Vehicles."

5900.2

Before each transfer is made, the owner, operator, or agent in charge shall check that the volume available in the tank is greater than the volume of product to be transferred into the tank.

5900.3

The owner, operator, or agent in charge shall ensure that an individual, who may be the owner, operator, agent in charge, or a person designated by the owner in accordance with § 6502, constantly monitors each transfer operation to prevent overfilling and spilling, and that the transfer operation is performed in accordance with the UST manufacturer's specifications.

5900.4

When product is transferred by means of pressurized delivery, delivery nozzles shall be opened manually and observed by the individual transferring the product until closed.

5900.5

When product is transferred by means of pressurized delivery, a vent alarm device shall be installed and be visible and audible to the individual transferring the product.

5900.6

If the vent alarm indicates an obstruction to the vent, delivery shall be discontinued until the vent is cleared.

5900.7

The owner, operator, or agent in charge shall ensure that the spill prevention equipment is kept clean and dry.

5900.8

The owner or operator shall ensure that all fill lines for the UST are clearly marked to indicate the size of the tank and the type of regulated substance stored by:

(a) Installing a permanent tag or sign immediately adjacent to the fill pipes that indicates the size of the tank and the specific type of substance stored; or

(b) Applying a color code that conforms to the following requirements:

(1) Color markings that meet the requirements of American Petroleum Institute (API) Recommended Practice RP 1637 (Product Identification) shall be painted or placed around the fill or manhole cover in a manner that will readily identify the regulated substance in the storage tank;

(2) Regulated substances or products stored in USTs that are not listed in API Recommended Practice RP 1637 may be identified with an industry standard color code approved by the Department in accordance with § 5506; and

(3) The color code shall be painted on a sign not less than eight (8) by ten (10) inches with letters not less than five sixteenths (5/16) of an inch high, posted at the facility in a prominent location visible from the fill pipe area.

5900.9

Unless the pipes or openings are used for the transfer of a regulated substance stored at the facility, pipes or other openings may not be marked in any way that could be associated with that substance.

5900.10

The owner, operator, or other responsible party shall report, investigate, and clean up any spills and overfills in accordance with the requirements of Chapter 62.

5900.11

Each owner or operator shall comply with the requirements of §§ 5900.12 through 5900.15 in accordance with the following schedule:

(a) For UST systems in use on or before February 21, 2020, the initial spill prevention equipment test, containment sump test, and overfill prevention equipment inspection shall be conducted not later than October 13, 2021; and

(b) For UST systems brought into use after February 21, 2020, the requirements apply at installation.

5900.12

Except as provided in § 5900.13, all spill prevention equipment and containment sumps used for interstitial monitoring of piping shall be tested at least once every three (3) years for liquid tightness in accordance with § 5900.14. All water generated in the liquid tightness testing shall be disposed of at approved facilities.

5900.13

Spill prevention equipment and containment sumps that are double-walled with continuous interstitial monitoring are exempt from the testing requirement specified in § 5900.12, if the integrity of both walls is periodically monitored at least as frequently as the walkthrough inspection required in § 5904.

5900.14

Liquid tightness testing shall be conducted by using vacuum, pressure, or liquid testing in accordance with one of the following criteria:

(a) Requirements developed by the manufacturer;

(b) Petroleum Equipment Institute Recommended Practice RP1200, "Recommended Practices for the Testing and Verification of Spill, Overfill, Leak Detection and Secondary Containment Equipment at UST Facilities"; or

(c) An alternative industry standard or code of practice approved by the Department in accordance with § 5506.

5900.15

Overfill prevention equipment shall be inspected at least once every three (3) years. At a minimum, the inspection shall ensure that overfill prevention equipment is set to activate at the level specified in § 5705.3 and will activate when the regulated substance reaches that level.

D.C. Mun. Regs. tit. 20, r. 20-5900

Final Rulemaking published at 40 DCR 7835, 7863 (November 12, 1993); as amended by Final Rulemaking published at 46 DCR 7699 (October 1, 1999); amended by Final Rulemaking published at 67 DCR 1778 (2/21/2020)

AUTHORITY: Unless otherwise noted, the authority for this chapter is § 13 of the District of Columbia Underground Storage Tank Management Act of 1990, as amended, D.C. Law 8-242, D.C. Code § 6-995.1 et seq. (1995 Repl. Vol.), Mayor's Order 91-160 dated October 9, 1991; and the District of Columbia Water Pollution Control Act of 1984, D.C. Law 5-188, D.C. Code 6-921 (1995 Repl. Vol.), Mayor's Order 85-152 dated September 12, 1985.