Get Full Government Meeting Transcripts, Videos, & Alerts Forever!
Get email alerts on the Tank Sizing topic
No spam. Unsubscribe anytime.
Committee debates 1.5‑day vs. 2‑day emergency storage for upper zone; asks for meter data and rehab costs
Summary
Consultant presented options ranging from a 1.85M‑gallon tank (1.5 days) to a ~2.6M‑gallon tank (2× max‑day), with a possible cost near $10 million; directors and developers asked staff to return with calibrated meter data, an assessment of the Rioso tank's remaining life, and clearer cost allocations before taking the matter to the full board.
Consultant Joe presented a tank‑sizing analysis to the improvements committee on Jan. 6 that favored storage equal to roughly two times maximum day demand for the upper pressure zone, producing a recommended capacity equivalent to approximately a 2.6‑million‑gallon tank in the presentation.
Joe said that using a 2× max‑day criterion produces a large tank and commensurate costs — he told the committee a fully scoped, site‑acquired 2.6‑million‑gallon tank could approach $10 million once property and construction are included, while a smaller 1.85‑million‑gallon (about 1.5‑day) tank could reduce cost by roughly $1 million in preliminary estimates. "When we look at the existing deficiency relative to the new folks coming online ... that's where those percentages are mostly coming from," Joe said as he described allocations between existing residents, proposed residences and Village H.
Directors and a developer representative pressed staff to provide accurate usage data before the board considers a final recommendation. The developer representative argued the committee should not proceed to the board next month because the per‑EDU gallons‑per‑day baseline (the presentation referenced 750 gallons/EDU) needs verification from billing and metering data. "Nobody uses 7 50 in any of the districts," the representative said, citing statewide averages and urging staff to produce calibrated local usage numbers.
Directors also requested a professional assessment of the Rioso tank's remaining useful life and an estimate to rehabilitate it — staff previously indicated a 5‑year rehab horizon was discussed — so the committee can weigh rehabbing the existing 1,000,000‑gallon tank against building new storage.
Next steps: staff will provide calibrated daily‑use and EDU calculations for the pressure zone, bring a professional rehab estimate for Rioso, and return to the improvements committee with updated numbers prior to full‑board consideration.
