7 Del. Admin. Code § 1302-265-I-265.175

Current through Reigster Vol. 28, No. 6, December 1, 2024

Section 1302-265-I-265.175 - Containment

(a) In order to prevent the release of hazardous waste or hazardous constituents to the environment, secondary containment that meets the requirements of this section must be provided.

(b) Secondary containment may be provided by one of the three following methods:

(1) Accumulating containers inside a building with a base that underlies the containers and with walls or other curbing all of which are free of cracks or gaps and sufficiently impervious in order to contain leaks and spills until the collected material is detected and removed;

(2) Accumulating containers in a secondary containment system designed and operated as follows:

(i) A base that underlies the containers which is free of cracks or gaps and is sufficiently impervious to contain leaks, spills, and accumulated precipitation until the collected material is detected and removed;

(ii) The base must be sloped or the containment system must be otherwise designed and operated to drain and remove liquids resulting from leaks, spills, or precipitation, unless the containers are elevated or are otherwise protected from contact with accumulated liquids;

(iii) The containment system must have sufficient capacity to contain 10% of the total volume of all containers or the volume of the largest container, whichever is greater. Containers that do not contain free liquids need not be considered in this determination;

(iv) Run-on into the containment system must be prevented unless the collection system has sufficient excess capacity in addition to that required in paragraph (b)(2)(iii) of this section to contain any run-on which might enter the system;

(3) An equivalent method as approved by the Secretary.

(c) Spilled or leaked waste and accumulated precipitation must be removed immediately from the sump or collection area.

[Comment: If the collected material is a hazardous waste under Part 261 of these regulations, it must be managed as a hazardous waste in accordance with all applicable requirements of Parts 262-266 of these regulations. If the collected material is discharged through a point source to waters of the United States 16 DE Reg. 784 (01/01/13)

7 Del. Admin. Code § 1302-265-I-265.175