Cedar Falls committee backs utility’s limits on water-service pipe materials
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Summary
The Committee of the Whole voted 5–1 (1 absent) to direct staff to draft an amendment aligning the city’s plumbing code with Cedar Falls Utilities’ recommended materials—copper, HDPE and ductile iron—citing longevity, locating ease and inspection concerns with PEX.
The Cedar Falls Committee of the Whole voted to direct staff to prepare code amendments that would limit allowable buried water-service materials to copper, high-density polyethylene (HDPE) and ductile iron, with copper as the primary material for services 2 inches and smaller.
Gerald Lukensmeyer of Cedar Falls Utilities told the council that property owners in Cedar Falls own the water service from the main to the meter and that CFU has long enforced more restrictive material policies than the city’s adopted 2021 Uniform Plumbing Code (UPC). Lukensmeyer said copper service lines have been found in place for 50–70 years or more and that HDPE has a long projected lifespan, while PEX was designed for indoor plumbing and presents additional risks when used as an underground service pipe.
"We definitely believe copper is a better material to use in the long term for the property owner," Lukensmeyer said, citing concerns about ultraviolet exposure, variable manufacturer requirements for bedding and backfill, tracer-wire failures and potential premature failure from chlorine interaction.
Lukensmeyer walked the council through cost and inspection tradeoffs. He acknowledged a per-foot material price advantage for PEX in many markets but said that savings is often diminished or erased once required tracer wire, anode protection, bedding and additional inspections are added. He also referenced recent and pending product-liability suits alleging premature failures of certain PEX products as a cautionary example.
Council members asked several questions about upfront cost differences, homeowner choice (owners maintain service lines on private property), locating responsibility and whether HDPE might offer a middle ground. One council member said homeowners should have the ability to choose materials if they bear the repair cost; another emphasized municipal interest in protecting public right-of-way when private service failures affect streets or sidewalks.
Council member (S8) moved to adopt the CFU recommendations and Mayor (S1) seconded. The Committee approved the motion on a voice vote with one dissenting vote and one absence; the Mayor recorded the tally as 5–1 with one absent. The motion directs city staff to draft an ordinance amendment to bring the city’s code into alignment with CFU’s recommended service materials and inspection standards for later Council review.
The committee discussion also included staff and CFU suggestions to amend the UPC table (table 604) and local public-works specifications to limit materials and to require improved tracer-wire standards (recommendation to use 12-gauge tracer wire for longer tensile life). The committee did not adopt detailed ordinance language at the meeting and several members requested additional cost-comparison data before final ordinance drafting.
Next steps: staff will prepare the proposed code changes and ordinance language for a future council meeting so the council can consider formal adoption.
