City Council Agenda
Memo to:
Manteca City Council
From:
Michael Selling, Director of Engineering/City Engineer
Prepared by: Lauren Silva, Associate Engineer
Date: September 15, 2026 Subject: Temporary Emergency Stormwater Discharge and Tara Park School Site Ongoing Discharge License Agreement Between the City of Manteca and South San Joaquin Irrigation District
Recommendation:
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Adopt a resolution approving the Temporary Emergency Stormwater Discharge and Tara Park School Site Ongoing Discharge License Agreement Between the City of Manteca and South San Joaquin Irrigation District; and authorizing the City Manager or designee to sign the Agreement and take all necessary steps to carry out the purpose and intent of the resolution.
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Background:
The Denali residential subdivision (Denali) is located in the southwest area of the City of Manteca (City), outside the jurisdictional boundary of the South San Joaquin Irrigation District (SSJID). Because it is outside of SSJID’s boundary, the subdivision does not currently have a terminal stormwater discharge location. As part of the City‘s approval of the Denali subdivision, the City conditioned TH Denali LLC (Developer), to construct an oversized stormwater retention basin that was designed to accept and percolate the stormwater discharges from the subdivision in compliance with the City’s Storm Drain Master Plan.
The oversized stormwater retention basin is not percolating as designed and consequently requires a temporary stormwater solution until the City’s Zone 36/39 Outfall project (Outfall) is complete to provide for Denali’s terminal discharge. While the Outfall will provide for the terminal discharge for the greater southwest area of the City, the first phase is currently under construction, the second phase will begin construction later this year, and completion of the final phase is estimated within two to three years.
Similar to the Denali subdivision, Manteca U...
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