All thermoplastic casing used for water well casing must meet or exceed ASTM Standard F 480-90e and NSF Standard 14 (1990). Thermoplastic well casing five inches in diameter or larger must have a minimum wall thickness of 0.250 inches.
S.D. Admin. R. 74:02:04:43
General Authority: SDCL 46-2-5, 46-6-20, 46-6-27.
Law Implemented: SDCL 46-6-10, 46-6-20, 46-6-27.
ASTM Standard F 480-90e, "Thermoplastic Water Well Casing Pipe and Couplings Made in Standard Dimension Ratios (SDR)," July 27, 1990. Published by American Society for Testing and Materials, September 1990. Copies may be obtained from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103. Cost: $12. NSF Standard 14 (1990), "Plastics, Piping Components and Related Materials."Published by the National Sanitation Foundation, November 1990. Copies may be obtained from the National Sanitation Foundation, P. O. Box 1468, Ann Arbor, Michigan 48106; Cost: $20.