City Council Agenda
Memo to:
Manteca City Council
From:
Kevin Jorgensen, Director of Engineering
Prepared by:
Michael Selling, Deputy Director of Engineering
Date:
January 6, 2026
Subject:
Temporary Emergency Stormwater Discharge Agreement Between The City of Manteca and South San Joaquin Irrigation District, and Improvement Agreement Between The City of Manteca and TH Denali, LLC
Recommendation:
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Adopt a resolution approving the Temporary Emergency Stormwater Discharge Agreement between the City of Manteca and the South San Joaquin Irrigation District, and the correlating Improvement Agreement between the City of Manteca and TH Denali LLC; and authorizing the City Manager or designee to complete and execute all associated documents, and take all appropriate actions necessary to carry out the purpose and intent of the resolution.
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Background:
The Denali residential development (Denali) is located in the southwest part of the City of Manteca (City), outside the jurisdictional boundary of the South San Joaquin Irrigation District (SSJID) and is not currently able to discharge stormwater. As part of the City's approval of the Denali development, the City conditioned TH Denali LLC (Developer), to provide for the development's storm drainage. However, the oversized stormwater retention basin that was constructed is not percolating as designed. Consequently, a temporary alternative solution is necessary to provide for the development's storm drainage through the current wet weather season while the City works with the developer to bring the basin into compliance.
City staff have been working with the Developer to find a viable solution and identified the potential to run a temporary storm line from the basin to the SSJID Drain 8, where the basin water could be pumped/discharged to the French Camp Outlet Canal (FCOC), as needed, contingent upon SSJID's approval and downstream capacity in the FCOC. The Developer is agreeable to this solutio...
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