MRP Pollutants of Concern Selenium and PBDE Provisions

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.

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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.