(A) Reinforced concrete pipe and fittings.
(1) All concrete pipe shall conform to ASTM C76, “Reinforced Concrete Culvert Storm Drain and Sewer Pipe”.
(2) All concrete pipe shall be Class III, wall B unless otherwise approved by the town.
(3) All reinforced concrete pipe joints shall be spigot groove type joint with O-ring gasket conforming the ASTM C443 “Joints for Circular Concrete Sewer and Culvert Pipe, Using Rubber Gaskets”.
(4) Precast reinforced concrete end sections shall be in accordance with the cited specifications to the extent which they comply. End sections shall be sized to match the pipe.
(B) Polyvinyl chloride pipe (PVC).
(1) PVC pipe four-inch through 15-inch in diameter.
(a) All PVC pipe four-inch through 15-inch in diameter shall conform to ASTM D1784, “Rigid Poly (Vinyl Chloride) and Chlorinated Poly (Vinyl Chloride) Compounds” and either:
1. ASTM F794, “Poly (Vinyl Chloride) (PVC) Ribbed Gravity Sewer Pipe and Fittings Based on Controlled Inside Diameter”;
2. ASTM F949, “Poly (Vinyl Chloride) (PVC) Corrugated Sewer Pipe with a Smooth Interior and Fittings”; or
3. ASTM D3034, “Type PZM Poly (Vinyl Chloride) (PVC) Sewer Pipe and Fittings”.
(b) PVC sewer pipe shall be SAR 35 with cell classification of 12454-B or 12354-C.
(c) Pipe joints shall be push-on type conforming with ASTM D3212 “Joints for Drain and Sewer Plastic Pipes using Flexible Blastomeric Seals”.
(2) PVC pipe 18-inch through 48-inch in diameter.
(a) All PVC pipe 18-inch through 48-inch in diameter shall conform to ASTM D1784, “Rigid Poly (Vinyl Chloride) and Chlorinated Poly (Vinyl Chloride) Compounds” and either:
1. ASTM F794, “Poly (Vinyl Chloride) (PVC) Ribbed Gravity Sewer Pipe and Fittings based on Controlled inside Diameter”;
2. ASTM F949. “Poly (Vinyl Chloride) (PVC) Corrugated Sewer Pipe with a Smooth Interior and Fittings”; or
3. ASTM F679, “Poly (Vinyl Chloride) (PVC) Large-Diameter Plastic”.
(b) Pipe shall be made from PVC compounds with a minimum cell classification of 12364A.
(c) Pipe joints shall be push-on type conforming with ASTM D-3212.
(3) Gaskets. Gaskets shall be factory installed and chemically bonded to the bell end of the pipe.
(C) Corrugated metal pipe (CAMP).
(1) Corrugated metal pipe shall be aluminum-zinc-coated steel manufactured in accordance with ASTM A806 “Aluminum-Zinc-Coated Steel Sheet (by Hot-Dip Process) for Storm Sewer/Drainage Pipe”.
(2) When required by the drawings, bituminous coating for corrugated steel pipe shall meet the requirements of ASTM A849 “Post-Coated (Bituminous) Corrugated Steel Sewer and Drainage Pipe”.
(3) End sections for CAMP sewers or culverts shall be of the same material as the pipe. End sections and coupling bands shall be suitable for the pipe size specified. Band couplers shall have corrugations that mesh with the corrugations of the pipe.
(4) Fittings such as stub-tee connections or saddles shall be shop fabricated.
(D) Perforated under drain pipe.
(1) Perforated under drain pipe shall be corrugated polyethylene tubing manufactured in accordance with ASTM F405 or ASTM Y667 (ten-inch to 15-inch only).
(2) Under drain piping shall be bedded with gravel or selected bedding material as shown and required by the details included herein.
(2004 Code, Art. IV, § A, part 2)