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Harbour eem overview, ppt.

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Transcript

  • 1. St. John’s Harbour Clean-Up Environmental Effects Monitoring (EEM) Program Presentation to St. John’s ACAP The Gathering Place May 2, 2007
  • 2. St. John’s Harbour Clean-Up
    • Need for an environmental effects monitoring (EEM) program was identified in the Follow-Up Requirements from the Environmental Assessment of the project.
  • 3. St. John’s Harbour Clean-Up
    • Information from the EEM program will help to confirm the accuracy of assessment predictions and the effectiveness of mitigation measures. The information could also be useful in assessing the timing of future wastewater treatment improvements.
  • 4. St. John’s Harbour Clean-Up
    • What is EEM?
    • - Scientific evaluations of fish, fish habitat and use of fisheries resources
    • - Each EEM cycle consists of the monitoring study followed by interpretation and reporting of the results
  • 5. St. John’s Harbour Clean-Up
    • Representations from Environment Canada (EC), Department of Fisheries and Oceans (DFO), Public Works and Government Services (PWGS) and the provincial Department of Environment and Conservation (NDOEC) met to provide recommendations for the EEM program.
  • 6. St. John’s Harbour Clean-Up
    • EEM will commence with a study in 2007 to provide a baseline assessment of conditions pre-commissioning of the WWTP
    • Subsequent EEM studies, post commissioning, to be done every two years
  • 7. St. John’s Harbour Clean-Up
    • Components of the EEM program
    • - fish survey
    • - sediment monitoring
    • - supporting water quality monitoring
  • 8. St. John’s Harbour Clean-Up
    • Fish Survey
    • - winter flounder
    • - Two study areas: 1 exposure and 1 reference
    • - Timing: late summer (August/September)
    • - # of fish/area: 25
    • - population indicators: growth, condition, reproduction and survival
    • - fish health indicators: liver and gill histopathology and liver enzymes (MFO-mixed function oxygenase)
  • 9. St. John’s Harbour Clean-Up
    • Sediment Monitoring
    • - Physiochemical Testing (grain size, TOC, redox potential, sulphide, ammonia, metals, PAHs and PCBs)
    • - Benthic Invertebrate Community Survey (abundance/density, taxa richness and metrics describing degree of similarity and differences)
    • - Sediment Toxicity Testing (marine amphipod)
  • 10. St. John’s Harbour Clean-Up
    • Water Quality Monitoring
    • - monitoring conducted at the three sewer outfalls and one reference location for baseline study. Post-commissioning, monitoring at the WWTP outfall and reference areas.
    • - large suite of parameters (T, DO, salinity, TSS, BOD5, organohalogens, F, NO3, NO3+NO2, dissolved metals and metal hydrides, total P, COD, organochlorine pesticides, PCBs, PAHs, CN(total), Hg, phenolics
  • 11. St. John’s Harbour Clean-Up
    • Other Monitoring…
    • - City of St. John’s Water and Sediment Monitoring (14 stations, water and sediment): Summer 2007 and 5 years post commissioning
    • - NDOEC (Water Resources Division): Permits to Construct and Operate will contain effluent and receiving water quality monitoring requirements. More frequent and less extensive than EEM WQM suite
  • 12. St. John’s Harbour Clean-Up
    • Other Monitoring…
    • - Consideration being given to a Municipal Wastewater Regulation under the Fisheries Act. Promugulation: 2-3 years???. Will have effluent and receiving WQM requirements. Likely to include EEM requirements.
  • 13. St. John’s Harbour Clean-Up
    • Questions???
    • [email_address] or 772-4842