1 / 16

Pollutants of Concern

Pollutants of Concern. Permit Requirements. Reflect current assessment of controls to reduce pollutants to maximum extent practicable (MEP) Controls must attain or lead to attainment of water quality standards = wasteload allocations

choelscher
Télécharger la présentation

Pollutants of Concern

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Pollutants of Concern

  2. Permit Requirements • Reflect current assessment of controls to reduce pollutants to maximum extent practicable (MEP) • Controls must attain or lead to attainment of water quality standards = wasteload allocations • Update MEP assessment by end of permit term implementation levels

  3. Implementation Levels • Full-scale implementation where applicable • Focused implementation • Work out conditions relevant to full implementation • Pilot testing • Evaluate applicability and effectiveness • Other • Experimental, desktop study, laboratory work, literature review or combination thereof

  4. Mercury and PCBs

  5. Mercury and PCBs Actions • Areas with elevated mercury and/or PCBs levels in soils/sediments • Investigate and cause remediation of on-land contaminated soils and/or sediments • Improve system operation and maintenance to increase sediment removal • Strategic runoff treatment retrofits

  6. Mercury and PCBs Actions • All areas • Collect and recycle mercury containing materials → full implementation • Control/oversee removal of PCBs containing equipment (transformers, capacitors) → pilot • Control/manage release of mercury and/or PCBs from building materials and waste during demolition and remodeling → pilot • Construction site-erosion control → full

  7. Mercury and PCBs Actions • Investigate and cause remediation of on-land contaminated soils and/or sediments • Conduct surveillance • Identify sources and responsible parties • Remediate contaminated soils on public land • Cause/oversee remediation on private lands • Local and state lead Focussed implementation level

  8. Mercury and PCBs Actions • Improve system operation and maintenance to increase sediment removal • Improve/enhance storm drain and inlet cleaning • Improve/enhance street sweeping • Street flushing with capture Pilot implementation in multiple locations

  9. Mercury and PCBs Actions • Strategic runoff treatment retrofits • At sources or inlets • At location within drainage area • At outlets • Strategic routing of runoff to wastewater treatment systems • Dry weather (street flushing) • Limited (first flush) wet weather Pilot implementation in multiple locations

  10. Summary of Issues • Many measures are new and implementation will need to be adaptive and closely evaluated • Selection of pilot controls along with frequency and timeframe for implementation needs to be determined • Roles and responsibilities of various agencies needs to be worked out • Load reduction credits need to be established

  11. Pesticides

  12. Pesticides Actions • Adopt and implement IPM (integrated pest management) policy or ordinance • Outreach • Work with Ag Commissioners • Provide input to USEPA and CA Dept of Pesticide Regulation regulatory processes All full implementation level

  13. Pesticides Actions • Adopt and implement IPM policy or ordinance • Procedures for IPM at municipal facilities • Training in IPM for staff • Contract mechanisms to ensure IPM use

  14. Pesticides Actions • Outreach • At point of purchase • To residents who use or contract for pest control • To pest control operators and landscapers • To new development • Irrigation management

  15. Pesticides Actions • Work with Ag Commissioners • Report misuses of pesticides • Provide input to USEPA and CA Dept of Pesticide Regulation regulation processes

More Related