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City approves interlocal agreement to reroute up to 500,000 gpd from Lift Station 10 to AWASA system
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Summary
Council approved an interlocal agreement with AWASA to reroute up to 500,000 gallons per day from the Inspiration Road trunk line (Lift Station 10) to AWASA’s Lift Station, to relieve capacity constraints caused by infiltration and protect the trunk line during storm events; AWASA will charge $1.09 per 1,000 gallons.
The City Council approved an interlocal agreement with the Awasad (AWASA) utility Monday to reroute up to 500,000 gallons per day of effluent from Mission’s Lift Station No. 10 to AWASA’s system to relieve capacity constraints on the Inspiration Road trunk line.
City staff reported the Inspiration Road trunk line approaches maximum capacity during storm events because of infiltration; Lift Station 10 currently discharges over 2,000,000 gallons per day into the trunk line. The agreement will permanently reroute a portion of that flow — up to 500,000 gpd — into AWASA’s Lift Station on Lahoma Road, which will ultimately discharge to the City of Mission’s wastewater plant. AWASA approved the interlocal agreement at its June 17, 2025 meeting.
Nut graf: The permanent reroute is designed to reduce peak loading on the Inspiration Road trunk line and to improve system manageability while Mission completes local capacity projects; AWASA will bill Mission $1.09 per 1,000 gallons for the rerouted flow.
Staff said Mission is already advancing local infrastructure improvements in the Tierra Dorada area (about 75% complete) and plans to build a larger lift station and reroute lines; the interlocal arrangement is intended to be a complementary, long‑term solution. Council voted unanimously to approve the interlocal agreement.
Ending: With the agreement approved, staff will implement the reroute under the terms negotiated with AWASA and continue local capacity projects to reduce reliance on rerouting over time.
