Breakout II – Eco 2

QUESTIONS? Discharge to Ocean –Inland surface waters –Ocean –recharge to g/w aquifers Are discharges affecting ecosystem health? –Effluent –stormwater Are CEC present? –What are the sources? Is treatment plant working?

DESIGN CASE Are discharges affecting ecosystem health? –effluent –stormwater Receiving water: freshwater stream Target habitats/ –Sediment –Water column

TARGETS Indicators of Ecosystem Health Bioassays (field & lab) –VTG, intersex –Antibiotic resistance Macroinvertebrate community –Stormwater (storm drain vs. ref) –Wastewater (up vs. down) –Detailed analysis (EPT, etc.) Vertebrates (fish) –Adverse impacts on population level (highest relevance) –Organism level reproductive anomalies

TARGETS (cont.) Are CEC present? –effluent –Receiving waters (incl. sediment) Prioritize constituents based on risk –e.g. EE2 (in water); APs (in sed) Interpret relative to biology

CONCERNs Unintended use of monitoring data Priorities & approach can change w/time –E.g. provide matrix w/endpoints, sources, habitats for managers Biological monitoring –Costly, not always relevant to CECs –Interpretation difficult