Included in New AWWA C901 Up to date and Expanded Commonplace Now Accessible

In collaboration with greater than 30 committee and subcommittee members, the American Water Works Affiliation (AWWA) has up to date its C901 Commonplace for PE4710 high-density polyethylene (HDPE) strain pipe to be used in potable water, reclaimed water and wastewater service strains.  ANSI/AWWA C901-25 Polyethylene (PE) Strain Pipe, Tubing and Fittings, ¾ In. (19 mm) Via 3 In. (76 mm), for Water Service is now obtainable from the AWWA web site.  The primary version of C901 was permitted by the AWWA Requirements Council on January 28, 1978, and this eighth version was revealed on July 1, 2025.

Main adjustments to C901 embody the addition of detailed necessities for fittings, together with supplies, workmanship, dimensions, tolerances, bodily necessities, testing, and marking.  As well as, the brand new commonplace accommodates a descriptive assertion about use of lead-free HDPE pipes and fittings and Lead Service Line (LSL) substitute: “HDPE pipes and fittings …are thought-about lead-free per US Protected Consuming Water Act when licensed to NSF/ANSI/ CAN 61, NSF/ANSI/CAN 372, or NSF/ANSI 14 [pw end use (for potable water)].  Present LSL may be changed with HDPE utilizing open lower and a wide range of trenchless set up strategies.  Discuss with ANSI/AWWA C810 for extra data.” 

Additionally, ANSI/AWWA C901-25 features a new Appendix titled EPA Regulated PFAS Chemical compounds and HDPE. Primarily based on a survey by the Plastics Pipe Institute, Inc., it was concluded that ‘the chemical substances recognized in EPA’s PFAS Nationwide Major Consuming Water Regulation Rulemaking issued on April 10, 2024, should not deliberately added within the completed HDPE piping supplies.”  Additionally, analysis revealed within the Journal of the Australian Water Affiliation concluded “that permeation of undamaged PE … pipe by PFAS is unlikely…”  

The ANSI/AWWA C901-25 Commonplace describes dimension ratio (SDR) for pipe and tubing made with materials code designation PE4710 with a strain class of 250 psi for water at 80°F and decrease temperatures.  For larger temperatures as much as 140°F, references may be discovered within the AWWA M55 guide.  Pipe ranging in nominal dimension from ¾  via 3 inches that conforms to the outside-diameter (OD) dimensions of iron pipe dimension (IPS).  Tubing ranging in dimension from ¾ via  2 inches conforms to the OD dimensions of copper tube dimension (CTS).

​“This continues to be a key doc when planning and putting in a water service piping system, and particularly for utilizing HDPE for lead service line substitute,” acknowledged Camille George Rubeiz, P.E., F. ASCE,  who served because the chair on the AWWA C901 Subcommittee chargeable for updating the usual.  “It emphasizes the truth that HDPE pipe can be utilized in lead service line substitute tasks in open lower trenching and through the use of any of quite a lot of trenchless set up strategies.  This makes HDPE the one materials that may be designed and put in for service (C901 for 3/4 to three inches), distribution and transmission (C906 for 4 to 65 inches) piping methods utilizing ANSI/AWWA requirements and the AWWA M55 Guide.”

This C901-25 subcommittee included Gerry Groen, Infra Pipe Options, Mississauga, Ontario; Casey Haynes, H2E, and previously with Metropolis Utilities, Springfield, MO; Amster Howard, previously with the US Bureau of Reclamation, Lakewood, CO; Camille  Rubeiz, Plastics Pipe Institute;  Andrew Schipper, Fort Wayne Metropolis Utilities, Ft Wayne, IN; Jeff Wright, Georg Fischer Central Plastics LLC, Shawnee, OK.

Rubeiz mentioned that there’s additionally associated data within the AWWA M55 guide titled PE Pipe- Design and Set up.  “It is a complete AWWA guide about HDPE pipes and becoming a member of methods, detailing fittings, fusion and electrofusion.  There are additionally sections on hydraulics, strain rankings, exterior hundreds, requirements, hydrotesting and commissioning, upkeep and repairs, mannequin specs, plus earthquake purposes.  Moreover, there are case research, and set up methods corresponding to open lower (fundamental and engineered), marine, and trenchless strategies corresponding to Horizontal Directional Drilling, Pipe Bursting and Sliplining/Compression Match.” 

Further particulars about each the brand new AWWA C901-25 Commonplace and the M55 Guide may be discovered on the AWWA and PPI web sites and by scanning these QR Codes or clicking on the hyperlink.

Extra data may be discovered at www.plasticpipe.org/mabpubs

PPI is the most important commerce affiliation representing the plastic pipe trade.  Extra data may be discovered at www.plasticpipe.org.