Stormwater Pollution Prevention

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The City of Glendora's stormwater pollution prevention program is governed by various federal, state and local laws and regulations.  

The Clean Water Act of 1987 established requirements for storm water discharges under the National Pollution Discharge Elimination System (NPDES) permit program. The goals of the permit include protecting the beneficial uses of the water bodies and reducing stormwater pollution.

Polluted stormwater degrades our creeks and ocean. Sediments cloud the water, nutrients promote the growth of algae and toxic chemicals from pesticides or leaking cars all threaten the health of fish and other aquatic life. Bacteria and parasites from pet waste and leaking septic tanks can make our ocean unsafe for swimming and surfing.

The City of Glendora is currently covered or impacted by the following NPDES permits:
(click each to view corresponding permit)


The NPDES Municipal Separate Storm Sewer System (MS4) permit regulates municipal discharges of storm water and non-storm water from the Permittees’ MS4s. mandates that the City implement specified stormwater management programs to address the challenges of preventing stormwater pollution. Under this permit, the City is held accountable for water quality in our waterways.

Click here for tips on being Septic Smart

Planning and Public Works staff work to protect and restore the physical, chemical and biotic integrity of surface water through the promotion of ecologically sound land use practices, reduction and elimination of storm water impacts, the assurance of a high performance level from current and future storm water control systems, and education and outreach opportunities to foster healthy watershed stewardship.

POOL DRAINING PERMIT:  Prior to draining your pool, please fill out and submit this Pool Draining Permit Application to the Environmental Services Section. A $73.00 fee is required, and fines may be assessed if your pool is drained without obtaining a permit. Please click here to view the City of Glendora's stormwater pollution prevention guide for swimming pools.

TO REPORT ILLICIT DISCHARGES OR SPILLS GOING INTO OR THAT MAY GO INTO THE STORM DRAIN: If the spill is a direct hazard to human or environmental health, dial 911.  Otherwise, contact the Public Works Department at 626-914-8246 during regular City hours (Monday - Friday 8 am - 5pm).  For after-hours violations, please call the Glendora Police Department non-emergency number at 626-914-8250. Thank you for being a part of our efforts to protect our ground and surface water.


  Drainage & Storm Water
Pollution Prevention Requirements

  Best Management Practices
  Sample Drainage/SWPPP for review
Drainage SWPP Title Block
SUSMP Handout
SWPPP Requirements 1 Acre +
SWPPP Requirements under 1 Acre
Stormwater Pollution Prevention
Storm Water Outreach Videos
LA County Low Impact Development Standards Manual
EPA Green Streets Manual
LA County Public Works Resources - Clean LA
Glendora Industrial/Commercial Guidance Manual

Car Washes
Concrete and Mortar
Household Hazardous Waste
Industrial Waste
Permitted Lots & Pool Drains
Pool Maintenance
Carpet Cleaning
Food Services
Household Tips
Pet Care
Sewage Spills
Mobile Car Washes




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