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Integrated Water Resource Plan update: staff says adaptive planning and Terry Ranch remain central to long‑term strategy
Summary
Manager Matt Persino presented the IWRP annual update, highlighting adaptive planning, a 10-year CIP, modeling work, storage retiming, and the role of Terry Ranch in multiple planning scenarios; the board praised the presentation and asked about next steps.
Matt Persino, Water Resource Planning and Watershed Program Manager, delivered the Integrated Water Resource Plan (IWRP) annual update, framing the plan as an adaptive master plan that uses scenario modeling to prepare for climate-driven uncertainty, Colorado River impacts and demand growth.
Persino reviewed the plan’s vision and modeling approach, the adaptive plan actions and a 10-year capital improvement plan that relies on projects including the Terry Ranch pipeline. He explained the plan’s monitoring triggers, summarized demand and per-capita trends (residential per-capita use ~88 gallons per day), and described ongoing studies: storage retiming, groundwater modeling for Terry Ranch, state landboard drilling follow-up and water-court filings tied to acquisitions.
Persino said the adaptive plan continues to show the city’s portfolio as sufficient to meet demands under a range of scenarios while noting stress signals in oncoming years; he outlined next steps including completion of the retiming study by year-end and continued coordination on the Terry Ranch integration study. Board members commended the clarity of the presentation and noted the adaptive-management framework will guide future implementation decisions.
The presentation was informational; board members asked questions and did not take formal action on the IWRP update at this meeting.
