Sunrise Engineering: Spring City's distribution and storage upgraded, source water remains limiting factor

SPRING CITY — At a public meeting on Spring City's proposed zoning changes, Jesse of Sunrise Engineering gave a technical briefing on the city's water and sewer systems, saying recent upgrades to distribution and storage improve capacity but the source supply remains the current constraint.

"When we say infrastructure, that's very broad," Jesse told the meeting. He described three separate components for water: distribution (pipes), storage (tanks) and source (springs and wells), and said each has different capacity characteristics. "The distribution system within town, with the upgrades is gonna have surplus capacity," he said. "Your storage capacity — we're constructing a new tank — there's gonna be quite a bit of additional capacity."

Jesse identified source capacity as the present pinch point. "Right now, that's got the lowest excess capacity," he said. He explained that state standard guidelines use conservative per‑connection numbers; Spring City's actual residential use is significantly lower than those benchmarks, which is why residents are not now experiencing shortages. The engineer said final, system‑specific sizing will follow completion of the master meters and the construction work.

On sewer, Jesse said the collection pipes recently upgraded are sized to handle significantly more connections: "the pipes could handle, like, a thousand connections," he said, noting that the lagoons are the limiting factor for sewage treatment. He said the lagoon system currently uses two of three cells and that the third cell is being used; he estimated a timeline of roughly 15–20 years before lagoon capacity would require expansion, though he cautioned the figure is approximate and depends on development patterns.

Consultants and staff answered technical questions from residents. Jesse said that hydraulics of recent pipeline work could support substantially more in‑town connections if source water were available. In a follow‑up comment, another consultant reported Spring City holds about 1.61 cubic feet per second (CFS) of water rights, and that last year's measured use was well under the total entitlement; that analyst said the new system hydraulics could allow roughly another 400–500 connections depending on location.

Officials cautioned that while pipes and tanks may have capacity, increasing development would still require decisions about investing in springs or new wells and potential sewer‑pond expansion. "None of the components on the water system or even the sewer system are capped — they can always be increased," Jesse said. "But currently, your source capacity is your limiting factor."

Ending

Engineers recommended completing post‑construction metering and system‑specific sizing before the city adopts any large zoning change that could materially alter connection counts. City staff and Planning and Zoning indicated they will collect additional technical data as they prepare a recommendation to the city council.