City gets detailed briefing on lead service line replacement: inventory challenges, funding shortfall and 10‑year timetable

Public Works staff delivered an extensive update on the city's lead service line replacement program, highlighting inventory challenges, state and federal regulatory changes, estimated costs and funding options.

Staff said the city has made progress on its inventory but continues door‑to‑door surveys and hydro‑excavation where homeowners do not provide access. Under current guidance, the city must replace full service lines (from the main through the meter and 18 inches into the private piping) when identified; staff said Illinois and U.S. EPA rule changes are moving toward more stringent requirements and shorter timelines and that the federal/state program may require full replacement within 10 years.

Estimated current costs were presented: approximately $8,600 to replace the private side portion and about $12,500 for the public curb‑side portion, producing a combined current estimated average around $21,000 per full service line replacement. Staff estimated a program cost of about $8.4 million per year to meet a 340‑service‑line annual goal (~$84 million over 10 years) at current prices. Staff also reported that St. Charles did not receive Illinois EPA SRF funding in the current cycle and is ranked lower on the state's prioritization list, so the city will continue to apply for funding but must plan budget options (rate adjustments, internal funding) if state federal funding does not materialize.

Staff emphasized additional regulatory changes under the U.S. EPA Lead and Copper Rule revisions (LCRI) — including lower action levels and more frequent testing and inventory requirements — could increase costs and administrative burden. Committee members asked about the funding pathway and said they expect staff to return with rate or budget options during the next budget cycle.