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CECs: The San Francisco Bay StoryTom Mumley, SF Bay Regional Water Board
Karin North, City of Palo AltoRebecca Sutton, SFEI - ASC
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Contaminants of Emerging Concern
PFOS PFAS
William Duke, NYTimes
PBDEs &Flame
Retardants
Pesticides
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San Francisco BayBIG, URBANIZEDArea = 4,100 km2
SHALLOW, COMPLEXMedian Depth = 4 m
LARGE WATERSHED40% of CA
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Regional Monitoring Program
Stakeholders
Govern-ment
Scientists
Industry
Partnership to understand the health of San Francisco Bay
Celebrating
our 25th year!
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RMP Participants
Budget: $3.5M
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RMP Focus on CECs
• 10+ years of monitoring and studies• Primarily ambient water, sediment, biota• Some wastewater and stormwater
• 2013 CEC Synthesis and Strategy• Added non-targeted analysis, bioanalytical tools
• 2017 Strategy Revision
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Informed and Informed-By
ftp://ftp.sccwrp.org/pub/download/DOCUMENTS/TechnicalReports/600_CEC_wkshp2009.pdf
http://www.waterboards.ca.gov/water_issues/programs/swamp/cec_aquatic/docs/cec_ecosystems_rpt.pdf
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Management Questions
Which CECs have the potential to adversely impact beneficial uses in San Francisco Bay?
What are the sources, pathways, loadings, and processes leading to CEC pollution in the Bay?
Have the concentrations of CECs in the Bay increased or decreased?
Which management actions may be effective in reducing CEC levels?
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Dr. Bill ArnoldUniversity of Minnesota
Dr. Derek MuirEnvironment & Climate
Change Canada
Dr. Lee FergusonDuke University
Dr. Kelly Moran TDC Environmental
Dr. Heather StapletonDuke University
Dr. Daniel SchlenkUC Riverside
CECs Science Advisors
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CEC Strategy: Three ElementsCEC monitoring,
evaluating risk
Learning from others,
sharing expertise
Non-targeted monitoring
(bioassays, broadscans)
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Risk TiersHigh probability of moderate or high level effect on Bay wildlife
High probability of low level effect on Bay wildlife
High probability of no effect on Bay wildlife
Uncertainty in Bay levels or toxic thresholds
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Studies to support Total Maximum Daily Load (TMDL) or alternatives
Trends monitoring and/or fate, effects, and sources and loadings studies
Monitoring Strategy
Periodic ambient and/or source trend screening
Ambient and source screening
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303(d) list → TMDL or alternative(s)
Action plan or strategy– Aggressive pollution prevention– Seek product or chemical alternatives
Management Strategy
Track product use and market trendsEasy, low-cost source identification and pollution prevention actions
Identify and prioritize potential CECsDevelop bio and chemistry methods
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CEC Strategy: Three ElementsCEC monitoring,
evaluating risk
Learning from others,
sharing expertise
Non-targeted monitoring
(bioassays, broadscans)
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Work Underway in 2017
• Alternative Flame Retardants in Bay Water
• Neonic Pesticides and Degradates in Bay Water
• Bisphenols in Bay Water
• Triclosan and Methyl Triclosan in Small Fish
• PFAS Synthesis and Strategy
• Advancing modeling capabilities
CEC monitoring, evaluating risk
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None currently
PFOSFipronil
Nonylphenol
PBDEs and HBCDPyrethroids*
Pharmaceuticals andPersonal Care Products
PBDDs and PBDFs
Alternative Flame RetardantsPFAS (Fluorinated Chemicals)
Pesticides, PlasticizersMicroplastic
PCB 11, PHCZs, others
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Tracking the ScienceLearning from others, sharing expertise
• Read the literature• Attend scientific conferences• Communicate with decision-makers• Educate stakeholders• Collaborate with leading minds
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Work Underway in 2017
• Non-targeted Analysis of Bay Water and Effluent
• Bioassays of South and Lower South Bay Margin Water and Sediment for Estrogenicity(EEWG)
• 2018 Proposal: Non-targeted Analysis of Sediment
Non-targeted monitoring
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• PFOS/PFAS
• Focus on trends, unknown PFAS
• Nonylphenol/Ethoxylates
• Broad screening, temporal trends, synthesis
• Fipronil & degradates
• Fish tissue
Moderate Concern Priorities
Multi-Year Plan: Proposed Special Studies
Coordinate with Status & Trends monitoring
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• Series of studies in different matrices
• Followup targeted studies
Non-targeted monitoring
• Alternative flame retardants
• Dyes
• Pharmaceuticals
• Personal care & cleaning products
• Plastic additives
• Pesticides
Multi-Year Plan: Proposed Special Studies
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RMP CEC Strategy: ThemesFocus on
chemical and functional classes
Policy-relevant science
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PBDE RecoveryShiner Surfperch
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Alternative Flame RetardantsPBDE replacements detected in consumer products and San Francisco Bay led to management actions
California Bureau of Home Furnishings
TB117-2013: New standard for foam
furniture, exemptions for baby products
SB 1019: Furniture labeling law
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PFOS Recovery
South Bay
Harbor seals
PFOS in Serum
(ng/g or ng/mL) 2004
to
2008
2009
to
2012
2014
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3,000
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Microplastic
2015 Bay
study levels
higher than:
• Great Lakes
• Chesapeake
• Salish Sea
Sutton et al. 2016
Count/km2
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Microplastic: Broader Impacts
Policy:
• Federal Microbead-Free Waters Act signed into law (2015)
Funding:
• Gordon & Betty Moore Foundation 2-year, $880,000 grant for further study
• Guided by RMP Microplastic Monitoring and Science Strategy
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303(d) list → TMDL or alternative(s)
Action plan or strategy– Aggressive pollution prevention– Seek product or chemical alternatives
Management Strategy
Track product use and market trendsEasy, low-cost source identification and pollution prevention actions
Identify and prioritize potential CECsDevelop bio and chemistry methods
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None currently
PFOSFipronil
Nonylphenol
PBDEs and HBCDPyrethroids*
Pharmaceuticals andPersonal Care Products
PBDDs and PBDFs
Alternative Flame RetardantsPFAS (Fluorinated Chemicals)
Pesticides, PlasticizersMicroplastic
PCB 11, PHCZs, others
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Management Actions: Moderate Concern (Tier III)Regional CEC Action Plans:• Source identification • Source control identification and evaluation• Track product use and market trends• Communication and outreach• Monitoring/study strategy• Track recovery• Referral to other regulatory authority(s)
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Fipronil:Spot-on Flea ControlRMP study establishes wastewater as pathway
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Managing Pesticides in Wastewater• Regulation: DPR reviewing uses & mitigation• Prevention: Down-the-Drain model to support
registration recommendations• Monitoring, source identification, education
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Triclosan
Palo Alto and other SF Bay wastewater agencies• Consumer education • Purchasing
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Triclosan2016: FDA bans triclosanand 18 other antibacterialsfrom hand & body washes
Other uses may be addressed via DTSC: • Safer Consumer Products Program (Green
Chemistry)
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Pharmaceuticals
Support for extended producer responsibility:• RMP data for Senate
hearings, council meetings, boards of supervisors
• 2016-2017 testing by wastewater agencies
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Leveraging Resources
• Partnership with other organizations• Department of Toxic Substances Control• Department of Pesticide Regulations• Pro bono academic projects
• Alternative Monitoring Permit – provides RMP with extra funding for CECs ($235,000)
• Supplemental Environmental Projects (Enforcement) funding possible
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Keys to RMP’s SuccessForum for Collaboration Clear Objectives
Adaptability Long Range Planning
Municipal WWTFs44.0%
Industry11.0%
Stormwater23.5%
Cooling Water4.0%
Dredgers17.5%
Allocation of RMP Fees by Sector
Stable Funding
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RMP Data: Reliable, AvailableQuality Assurance Formatting
and Databases
Online Access
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Communicating RMP datawww.sfei.org/rmp
Fact Sheets