S.D. Admin. R. 74:56:03:07
New AST systems must be designed and constructed in accordance with a code of practice developed by nationally recognized associations or independent testing laboratories such as UL 142 (1985) or similar methods approved by the department. AST systems constructed of metal and installed in contact with an electrolyte must be cathodically protected with sacrificial anodes or an impressed current system which is designed, fabricated, and installed in accordance with a code of practice developed by nationally recognized associations or independent testing laboratories such as NACE Standard RP-02-85 (1985), API Standard 1632 (1983), or similar methods approved by the department.
New AST systems containing noncorrosive substances do not require internal coatings. Monitoring of the pH of the tank condensate is required biannually, not to exceed 7 1/2 months between sampling. A pH of 6.8 or higher shall be maintained. Owners or operators of an AST which cannot comply with this section may request a variance from the department by submitting justification for the variance. Criteria for granting the variance are the same as those listed in § 74:56:03:06.
S.D. Admin. R. 74:56:03:07
General Authority: SDCL 34A-2-93, 34A-2-101.
Law Implemented: SDCL 34A-2-100, 34A-2-101.
UL 142, 1985 Edition, Underwriters Laboratory, Inc. Copies may be obtained from Underwriters Laboratory Inc., Publication Stockm 333 Pfingston Road, Northbrook, Illinois 60062-2096. Cost: $31.50. NACE Standard RP-02-85, 1985 Revision, National Association of Corrosion Engineers. Copies may be obtained from the National Association of Corrosion Engineers, P.O. Box 218340, Houston, Texas 77218-8340. Cost: $10 for members and $12 for nonmembers. API Standard 1632, 1983 edition, American Petroleum Institute, as reprinted by the Harco Corrosion Engineering and Cathodic Protection Library, HC-64. Copies may be obtained from the American Petroleum Institute, Publications and Distribution Section, 1220 L Street, Northwest, Washington, D.C. 20005-4070. Cost: $12.50.