The CW4CB Project included an evaluation of methods to enhance the pollutant removal benefits of municipal Operations and Maintenance (O&M) practices that remove sediment from streets and storm drain system infrastructure. Sediment that accumulates in these locations in certain watershed areas can contain high levels of pollutants. These studies evaluated enhancements to routine municipal O&M practices and included:
- A street sweeping pilot project gathered monitoring data at four locations, three of which were in CW4CB pilot investigation watersheds (the Leo Avenue watershed in San Jose and the Lauritzen and Parr Channel watersheds in Richmond) and one of which was conducted in the City of Sunnyvale, California.
- An enhanced pump station maintenance pilot project was conducted at the Ettie Street Pump Station watershed in Oakland.
- A storm drain system cleaning and video inspection pilot project was conducted in the Leo Avenue watershed in San Jose.
- A street flush and capture pilot project was conducted in the Pulgas Creek Pump Station watershed in San Carlos.
The results of this project task are presented in Section 4 of the CW4CB Overall Project Report, and are additionally described in detail in the individual Project reports included on the All CW4CB Project Reports page. Enhanced O&M Project sites and monitoring data locations are shown on the map below.
Photos of Street Sweeping Pilot Project
Click individual photos to enlarge.
Street sweeping 
Sample collection
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