Item 4. Update on future Capital Improvement Project (CIP) plan regarding the replacement of the hot water line — original pdf

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EMMA S. BARRIENTOS MEXICAN AMERICAN CULTURAL CENTER Heating Hot Water Loop Leak Update Heidi Tse Capital Delivery Project Manager April 1, 2026 Phase A Methods used to locate leak and damages to the HHWL line • Ground Penetrating Radar • Correlation Testing • Selective excavation to perform • Isolate legs of lines for testing • CCTV (camera) video the lines • Repairs estimated one week • Re-pressurizing the lines • Perform final correlation test • Partial Repair Work Completed • 3 Areas of Pipe Repaired • 3 Isolation valve added • Backfill and New Valve Vaults (April) • Re-pave/re-stripe Phase B • Water loss has doubled since 3/27/26 • Contractor can not fully complete commissioning (test equipment operations) of the building • Engaging a separate general contractor specializes in hydronic lines • Full turnkey (Hydronic/Civil Engineers, Plumbing, Paving & Right of way work. • Meeting with Contractor tomorrow 4/2/26. Probable leak at valves Line with leak Line with no leak Manhole Valves Questions ?