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MRP Pollutants of Concern Selenium and PBDE Provisions

MRP Pollutants of Concern Selenium and PBDE Provisions. Monday November 20, 2006 Richard Looker - RWQCB. Mea Culpa. Bad News: I failed to get these provisions into the distributed draft due to an oversight - sorry.

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MRP Pollutants of Concern Selenium and PBDE Provisions

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  1. MRP Pollutants of ConcernSelenium and PBDE Provisions Monday November 20, 2006 Richard Looker - RWQCB

  2. 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.

  3. 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.

  4. 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.

  5. 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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