All PVC well screens and casings used on this project shall be manufactured by Atlantic Screen and Manufacturing, Inc. and conform to ASTM F-480: "Standard Specification for Thermoplastic Well Casing Pipe and Couplings Made in Standard Dimension Ratios (SDR), SCH 40 and SCH 80."
PVC Materials used to produce the raw PVC pipe shall meet ASTM Standard D-l 784: "Specification for Rigid Poly (Vinyl Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Compounds for PVC Normal Impact, Type I Grade I (1120), cell classification 12454-B."
The finished schedules 40, 80, and 120 raw pipe shall meet the requirements of ASTM Standard D-l 785: "Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120." In addition, both the raw material and the finished pipe shall be approved by the National Sanitation Foundation (NSF) for use in potable water applications. The PVC pipe used to produce the well screens and casings shall be made from virgin plastic produced by the original compounder.