Municipal Trash Generation Maps

The maps presented below were developed by cities/towns in San Mateo County and the Unincorporated County using the best available information. The maps are consistent with the requirements included in the Municipal Regional Stormwater National Pollutant Discharge Elimination System (NPDES) Permit (Order No. R2-2015-0049) issued by the San Francisco Bay Regional Water Quality Control Board to address discharges of trash from municipal separate storm sewer systems (MS4s).

• The Baseline Trash Generation maps depict the levels of trash observed circa September 2018 on streets, sidewalks, and other land areas draining to storm drains. 
• The Directly Connected Land Areas maps illustrate the land areas that are >10,000 ft² and are directly connected to the city/town/county storm drainage system. 

The maps are subject to revision. The Towns of Woodside, Portola Valley, and Hillsborough do not have directly connected land area maps because these jurisdictions either have all “low trash generating areas,” or have no areas >10,000 ft² that drain to inlets not associated with the public right-of-way.

Municipality	Baseline Trash Generation Maps	Directly Connected Land Areas Maps
Atherton	Baseline Trash Generation	Directly Connected Land Areas
Belmont	Baseline Trash Generation	Directly Connected Land Areas
Brisbane	Baseline Trash Generation	Directly Connected Land Areas
Burlingame	Baseline Trash Generation	Directly Connected Land Areas
Colma	Baseline Trash Generation	Directly Connected Land Areas
Daly City	Baseline Trash Generation	Directly Connected Land Areas
East Palo Alto	Baseline Trash Generation	Directly Connected Land Areas
Foster City	Baseline Trash Generation	Directly Connected Land Areas
Half Moon Bay	Baseline Trash Generation	Directly Connected Land Areas
Hillsborough	Baseline Trash Generation	N/A
Menlo Park	Baseline Trash Generation	Directly Connected Land Areas
Millbrae	Baseline Trash Generation	Directly Connected Land Areas
Pacifica	Baseline Trash Generation	Directly Connected Land Areas
Portola Valley	Baseline Trash Generation	N/A
Redwood City	Baseline Trash Generation	Directly Connected Land Areas
San Bruno	Baseline Trash Generation	Directly Connected Land Areas
San Carlos	Baseline Trash Generation	Directly Connected Land Areas
San Mateo	Baseline Trash Generation	Directly Connected Land Areas
San Mateo County	North Fair Oaks Baseline Trash Generation	Directly Connected Land Areas (for all Unincorporated)
	North County Baseline Trash Generation
	South County Baseline Trash Generation
	West County Baseline Trash Generation
South San Francisco	Baseline Trash Generation	Directly Connected Land Areas
Woodside	Baseline Trash Generation	N/A