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Study recommends Ivins set aside 0.826% of sewer replacement value (about $834,000/year) to fund repairs
Summary
An engineering lifecycle model presented to the Ivins City Council recommends saving 0.826% of the systems replacement value (about $834,000 annually on the current asset base) into a repair-and-replacement fund and documents options for protecting those funds legally and procedurally.
A lifecycle analysis presented at the Ivins City Council work meeting on June 19 recommends the city begin setting aside roughly 0.826% of its sewer system replacement value each year to build a repair-and-replacement (R&R) fund.
Chuck, the presenter, said the recommendation comes from an intern-driven GIS inventory and a decade-by-decade financial model that uses conservative assumptions: 2.5% annual inflation, a 5% nominal investment return (about 2.5% real), a 50/50 split between rehabilitation and full replacement, and an assumed service life of about 75 years for many components. "If we save this point 826%, right now that's $834,000 per year," Chuck said.
The presentation traced how the model assigns ages to every pipe and then projects repair and replacement needs as the system grows. Chuck said the model was run out 200 years to test stability and to see whether repair and replacement costs would stabilize or escalate under…
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