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Published byGerard Long Modified over 8 years ago
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MRP Pollutants of Concern Selenium and PBDE Provisions Monday November 20, 2006 Richard Looker - RWQCB
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Mea Culpa Bad News: I failed to get these provisions into the distributed draft due to an oversight - sorry. Good News: provisions are straightforward and not onerous for this permit term.
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The Provisions (1) Characterize distribution of PBDEs & selenium in Bay urban areas to determine: a) PBDEs & selenium presence in runoff b) if PBDEs & selenium are distributed relatively uniformly in urban areas, and c) are there particularly high concentration source areas? Report in Year 2.
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The Provisions (2 & 3) Provide information to allow for calculation of loads from urban conveyances: Report in Year 3. Identify control measures and/or management practices to eliminate or reduce discharges of PBDEs or selenium conveyed by urban runoff Report in Year 4.
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Issues to work out How extensive should the effort be for the characterization? Similar to PCB/Hg effort through Kinnetic How robust should the methodology be for the loads calculation? can be rough bounding exercise based on collected data. Consider doing dioxins and legacy pesticides analysis at the same time.
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