S.D. Admin. R. 12:44:05:04

Current through Register Vol. 51, page 34, September 9, 2024

Section 12:44:05:04 - Exemptions

Existing bulk commercial fertilizer storage containers with the capacity of 100,000 gallons or more are exempt from the requirements of § 12:44:05:07 and subdivision 12:44:05:14(4) if the following alterations are made by February 1, 1996:

(1) A layer of smooth, fine gravel or coarse sand at least three inches thick shall be placed over the original bottom of the storage containers, and a second bottom made of steel shall be constructed and placed over the layer of gravel or sand;

(2) The original bottom of the storage container shall be tested for leaks before the sand layer and second bottom are installed. A record of the test shall be kept on file at the storage facility;

(3) The newly constructed bottom shall be tested for leaks before any liquid fertilizer is stored on the newly constructed bottom. A record of the test shall be kept on file at the storage facility;

(4) A method by which leaks from the newly constructed bottom into the sand layer may be readily detected must be available. This may be accomplished by the establishment of weep holes or drainage ports on the exterior of the storage container in the area between the original bottom and the new bottom; and

(5) Containers must be equipped with a means of secondary containment which is of sufficient thickness and strength to withstand loading conditions and the discharge of maximum tank capacity, considering the full hydrostatic head of the discharged liquid, and large enough in volume to contain the maximum amount of discharged liquid before meeting a point of equilibrium between the liquid remaining in the container and the liquid in secondary containment, taking into consideration the wall height of the secondary containment and the distance of the wall from the storage container. If secondary containment is obtained by the method described in subdivision 12:44:05:07(5) and §§ 12:44:05:08 to 12:44:05:10, inclusive, apply.

S.D. Admin. R. 12:44:05:04

15 SDR 194, effective 7/1/1989.

General Authority: SDCL 38-19-36, 38-19-36.1, 38-19-36.2.

Law Implemented: SDCL 38-19-36, 38-19-36.1, 38-19-36.2.