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Post-construction Stormwater Standards Manual

Multi-Agency Post-construction Standards (LID)

The City of Lathrop, in collaboration with San Joaquin Country, Tracy. Lodi, Manteca, and Patterson prepared a Multi-Agency Post-construction Stormwater Standards Manual to provide consistent guidance for municipal workers, developers and builders in implementing the requirements under the Statewide Small MS4 NPDES permit (2013-0001-DWQ).

To Report illegal dumping and discharges:

Please report immediately if you observe any of the following…

  • Over Watering
  • Oil
  • Hazardous Waste
  • Littering / Dumping
  • Pet Waste
  • Soap/Detergents
  • Unidentified substances in runoff (e.g. brightly colored runoff)
  • Sewage

Remember, only rain down the drain!

City Stormwater Management Contacts:

Stormwater items related to Construction or Inspection: 

Construction Inspector:             209-941-7452 

Building Inspector:                    209-941-7281


The City of Lathrop is a proud member of the San Joaquin Stormwater Quality Partnership!

The San Joaquin Stormwater Quality Partnership is comprised of Lathrop and other municipalities. These municipalities include: The City of Lodi, Manteca, Ripon, Stockton, Tracy, and the County of San Joaquin. The City of Lathrop has partnered up with these cities to share resources, provide multi-city stormwater training events, and participate in cost-sharing of public outreach, such as radio ads and school activity books.

City Department Contacts:

Planning Dept.: 209-941-7290

Building Dept.: 209-941-7270

Public Works/ Engineering: 209-941-7440

MS4 Permits & Public Outreach: 209-941-7430

Solid Waste Contacts:

Hazardous Household Waste:     San Joaquin County Public Works, Solid Waste Division: 209-468-3066

Republic Services 209-466-3604

The City of Lathrop, Public Works Department

390 Towne Center Drive, Lathrop, CA 95330

For more information about the City of Lathrop’s storm water program or to speak with a program representative, call


Get involved! – Volunteer Opportunities

The City of Lathrop is looking for individuals and groups to volunteer with its storm water program. We have several opportunities to help your community and the environment. Contact Parks & Recreation Dept. at

(209) 941-7370 for more information.

Current volunteer opportunities:

  • Annual Beautification Day (April)
  • Volunteer Applications
  • Sponsor Packets are available at;
    Lathrop Community Center
    Lathrop Generations Center
    And City Hall
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