During the mid 1990’s, organophosphate pesticides (diazinon and chlorpyrifos) were identified as causing toxicity in local creeks. In May 1999, EPA listed San Francisco Bay and 35 Bay Area urban creeks as impaired by diazinon under Section 303(d) of the Clean Water Act. In response, the Program and Co-permittees developed and implemented a Pesticide Control Plan that addresses the use of pesticides within their jurisdictions; and implemented various public outreach and education efforts (at the local and regional level) which address pesticide usage.
Pesticide Monitoring Activities
The Program is conducting water quality monitoring of pesticides under the Revised Multi-Year Receiving Waters Monitoring Plan.   A full description of methods, results and conclusions relating to pesticide monitoring are presented within various Water Quality Monitoring Reports and Work Products.
Public Outreach and Education and Regional Coordination
The Program has implemented and/or participated in the following public outreach and education activities specifically related to pesticide use:
IPM Store Partnership – The Program contributes funds to and participates in the Regional IPM Program and implements the local IPM Partnership Program in local stores. Participating stores had in-store “Our Water Our World” displays and IPM fact sheets and stocked less-toxic products.
Media Advertising - Messages about less-toxic pest control are included within Watershed Watch advertising.
Outreach at Events –Program, Co-permittee and Watershed Watch staff conduct IPM at pre-determined events. IPM fact sheets, brochures and giveaways are distributed to the public.
Going Native Garden Tour- The Program provides funding to support the annual Going Native Garden Tour. The tour features gardens that demonstrate environmentally sensitive gardening practices.
Outreach to Restaurants- The Program continues to provide copies of the “Don’t Lay a Table for Pests” poster to County Health inspectors for distribution to food facilities.
Santa Clara Valley Green Gardener Program – In 2008 and 2009, the Program partnered with the Metropolitan Adult Education Program and Master Gardeners of Santa Clara County to implement the Santa Clara Valley Green Gardener Program. This training program is an educational initiative that brings quality instruction to professional landscapers, gardeners and landscape maintenance workers on how to “garden green” and use techniques that support sustainable landscaping practices.