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Science in Support of Managing Water Quality Philip Trowbridge, - - PowerPoint PPT Presentation
Science in Support of Managing Water Quality Philip Trowbridge, - - PowerPoint PPT Presentation
Science in Support of Managing Water Quality Philip Trowbridge, P.E. San Francisco Estuary Institute San Francisco Bay SHALLOW, COMPLEX BIG, URBANIZED LARGE WATERSHED Area = 4,100 km 2 Median Depth = 4 m 40% of CA Regional Monitoring
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An innovative partnership to understand the health
- f San Francisco Bay
Stakeholders Govern- ment Scientists Industry
Regional Monitoring Program for Water Quality in San Francisco Bay
Celebrating our 24th year!
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General Goal of the RMP
Collect data and communicate information about water quality in San Francisco Bay in support of management decisions
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RMP Participants
Municipal WWTFs 44.0% Industry 11.0% Stormwater 23.5% Cooling Water 4.0% Dredgers 17.5%
Allocation of RMP Fees by Sector Budget: $3.5M
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Status and Trends Monitoring Special Studies
Water Sediment
Bottom & Shore Stormwater: Sources, Pathways and Loadings
NO3- (mg/L)
Coyote Creek Alviso Slough Guadalupe Slough
Mercury PCBs / Dioxins Nutrients Selenium Copper Toxicity PAHs Emerging Contaminants
(PPCPs, pesticides, microplastics,etc.) Nutrients: concentrations & effects Non-targeted CECs analysis
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Local Scale Regional Scale National/State Scale Ambient sediment and water concentrations for permitting TMDLs for PCBs, Hg, Se Fish Consumption Advisories Nutrient Management Strategy Product phase outs Identifying high risk CECs
Achieving Our Goal
RMP Impacts on Management Decisions
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RMP Data Establish Background for Local Permits
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Continuous Monitoring with Moored Sensors High-Res Water Quality Mapping
Nutrient Studies Inform a Multi-Billion Dollar Decision
NO3
- (mg/L)
Coyote Creek Alviso Slough Guadalupe Slough
Algal Toxins Water Quality Modeling
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Fish Tissue Monitoring for TMDLs and Advisories Methylmercury in Striped Bass
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Innovative Methods To Monitor Selenium in Fish Non-Lethal Sturgeon Muscle Plug Monitoring
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PBDEs: A Bay Area Water Quality Monitoring Success Story
OCTA PENTA DECA US phase-out 2004, California ban 2006 US phase-out 2013 PBDEs added to foams, plastics & fabrics as a flame retardant SF Bay became a PBDE hot spot
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Developing a Microplastic Strategy For San Francisco Bay:
Information Needed to Support Decision-making
Pollution Pathways
Wastewater Stormwater
Bay Monitoring Water Sediment
Bottom & Shore
Fish Mussels
(filter-feeders)
Connection with Marine Debris
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Keys to the RMP’s Success
Forum for Collaboration Clear Objectives Relevant to Decisions Adaptability Long Range Planning
Municipal WWTFs 44.0% Industry 11.0% Stormwater 23.5% Cooling Water 4.0% Dredgers 17.5%
Allocation of RMP Fees by Sector
Stable Funding
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Thank you!
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