Monitoring
Featured Project
Low Impact Development (LID) Effectiveness Monitoring
Santa Clara Valley Urban Runoff Pollution Prevention Program (SCVURPPP) / San Mateo Countywide Water Pollution Prevention Program (SMCWPPP)
- EOA works with Santa Clara Valley Urban Pollution Prevention Program (SCVRUPPP) and San Mateo Countywide Water Pollution Prevention Program (SMCWPPP) on LID effectiveness monitoring projects to satisfy Municipal Regional Stormwater NPDES Permit (MRP) requirements. EOA collected and monitored composite samples for total mercury, total polychlorinated biphenyls (PCDs), total suspended solids TSS), per- and polyfluoroalkyl substances (PFAS), total petroleum hydrocarbons (TPH), total dissolved copper, total hardness, and hydrogen ion concentration (pH). Most recently, as part of the 2024-2025 work year, EOA has:
- Created a robust LID monitoring plan to complete sampling events during the permit term, completed ongoing maintenance, and addressed concerns raised during work year 2023-2024.
- Facilitated the Technical Advisory Group (TAG) of impartial science advisors and Water Board staff that advised on specific monitoring plans.
- Implemented flow and precipitation monitoring methods, such as influent collection trays and calibrated tipping-bucket rain gauges.
- Drafted and submitting the Urban Creek Monitoring Report as required by MRP provision C.8.h.iii.
Successfully identified data points for future comparison, monitored influent and effluent rates at multiple sites between two counties, and identified clear objectives for future work years.
Featured Project
SF Bay Regional Creek Status Watching Our Watersheds (WOW) Trash Flow Monitoring Projects Program Design
Alameda Countywide Clean Water Program, Contra Costa Clean Water Program, San Mateo Countywide Water Pollution Prevention Program, Santa Clara Valley Urban Runoff Pollution Prevention Program, Solano Stormwater Alliance
