Select sites upstream of reaches yielding elevated pollutant levels or on Memph. Watershed tributaries to bracket To identify sources Targeting event Association potential sources. Total Phosphorus Source of nutrient or category resulting Lake Seymour Tributary Monitoring can be Total Nitrogen Monthly or Identification: bacteria loading in moderate to Monitoring continued at established Turbidity biweekly plus Loading (especially NPS) or high levels when Stevens River sites to evaluate Total Suspended targeting high flow estimate/flow instances where runoff is ACRWC remediation (see Solids (TSS) conditions. duration curve high flow targeting increasing stream So. Chittenden River treatment effectiveness E. coli is essential. flow. Watch (SCRW) as well). Four Rivers Partnership Sites may include intermittent streams and drainage swales. Total/Dissolved Evaluation of a To test a specific Phosphorus treatment or experimental Variable; often involves Variable based on Flow regime often Green Wind Farms Nitrogen series management question on the sampling off stream (e.g. experimental targeted Project Turbidity or TSS practice: Treatment effectiveness of a discharge or drainage). design (freshet or runoff) Friends of No LC Other pollutants Effectiveness treatment. of concern Above and below a Total Phosphorus WWTF; groups will need Total Nitrogen to work with Ammonia Generally, the last 2 SCRW Evaluation of a Waste Water and WWTF Turbidity years of a National Targeting Base, Friends of the Mad River treatment or Treatment Facility operators to ensure Metals Pollutant Discharge Low median Black River Action Team management (WWTF) to assist sampling occurs during Elimination System monthly flows or SE VT Watershed Alliance practice: Treatment State in reasonable active discharge periods Also relevant: (NPDES) permit below Ottauquechee River Effectiveness potential and the downstream site Temperature, cycle of WWTF Group determination. * is placed below the Dissolved Oxygen waste management zone pH
Source Identification: Loading estimate/flow duration curve To identify sources of nutrient or bacteria loading (especially NPS) or instances where high flow targeting is essential. Select sites upstream of reaches yielding elevated pollutant levels or on tributaries to bracket potential sources. Monitoring can be continued at established sites to evaluate remediation (see treatment effectiveness as well). Sites may include intermittent streams and drainage swales. Total Phosphorus Total Nitrogen Turbidity Total Suspended Solids (TSS) E. coli Monthly or biweekly plus targeting high flow conditions. Targeting event category resulting in moderate to high levels when runoff is increasing stream flow. Memph. Watershed Association Lake Seymour Tributary Monitoring Stevens River ACRWC So. Chittenden River Watch (SCRW) Four Rivers Partnership Evaluation of a treatment or management practice: Treatment Effectiveness To test a specific experimental question on the effectiveness of a treatment. Variable; often involves sampling off stream (e.g. discharge or drainage). Total/Dissolved Phosphorus Nitrogen series Turbidity or TSS Other pollutants of concern Variable based on experimental design Flow regime often targeted (freshet or runoff) Green Wind Farms Project Friends of No LC Evaluation of a treatment or management practice: Treatment Effectiveness Waste Water Treatment Facility (WWTF) to assist State in reasonable potential determination. * Above and below a WWTF; groups will need to work with and WWTF operators to ensure sampling occurs during active discharge periods and the downstream site is placed below the waste management zone Total Phosphorus Total Nitrogen Ammonia Turbidity Metals Also relevant: Temperature, Dissolved Oxygen pH Generally, the last 2 years of a National Pollutant Discharge Elimination System (NPDES) permit cycle of WWTF Targeting Base, Low median monthly flows or below SCRW Friends of the Mad River Black River Action Team SE VT Watershed Alliance Ottauquechee River Group