Section Env-Wq 704.05 - Gravity Sewer Construction Materials The technical specifications shall specify the approved gravity sewer pipe and materials to be used on the project, as follows:
(a) Ductile iron pipe and fittings shall be certified by the manufacturer(s) as conforming to the following standards of the American Water Works Association (AWWA) in effect at the time that the pipes or fittings are manufactured:(1) AWWA C151/A21.51 for ductile iron pipe, centrifugally cast in metal- or sand-lined molds, for water, wastewater, and reclaimed water systems; and(2) AWWA C150/A21.50 for thickness design of ductile iron pipe and with ASTM A536 for ductile iron castings;(b) Joints shall be mechanical type, push-on type, or ball-and-socket type as appropriate for the specific application;(c) Plastic gravity sewer pipe and fittings shall be certified by the manufacturer as complying with the standards listed in Table 704-2, below, as in effect when the pipes were manufactured: TABLE 704-2 Plastic Pipe
ASTM Standard | Generic Pipe Material | Sizes Approved |
D3034 | Polyvinyl chloride (PVC), solid wall | 8-inch through 15-inch (SDR 35) |
F679 | PVC, solid wall | 18-inch through 60-inch (T-1 & T-2) |
F794 | PVC, profile, dual-walled corrugated | 4-inch through 48-inch |
F1760 | PVC, recycled, non-pressure | All diameters |
(d) Plastic sewer pipe shall have a pipe stiffness rating of at least 46 pounds per square inch at 5 percent pipe diameter deflection, as measured by the manufacturer in accordance with the ASTM D2412 standard in effect when pipe was manufactured;(e) Joint seals for PVC pipe shall be oil resistant compression rings of elastomeric material and certified by the manufacturer as conforming to the ASTM D3212 standard in effect when the joint seals were manufactured, and shall be push-on, bell-and-spigot type;(f) Concrete pipe shall be certified by the manufacturer as conforming to the AWWA C302 standard in effect when the pipe was manufactured;(g) Pre-stressed concrete cylinder pipe and fittings shall be certified by the manufacturer as conforming to the AWWA C301 standard in effect when pipe was manufactured; and(h) Joints for concrete cylinder pipe shall be made of oil resistant elastomeric material and certified by the manufacturer as conforming to the AWWA C301 standard in effect when pipe was manufactured.N.H. Code Admin. R. Env-Wq 704.05
(See Revision Note at chapter heading for Env-Wq 700) #8590, eff 3-25-06
Amended byVolume XXXIV Number 46, Filed November 13, 2014, Proposed by #10693, Effective 10/15/2014, Expires10/15/2024.