Task 1 – Existing Data Collection and Review Collect and review existing information to be used in the study including, but not limited to: • Wastewater flow data • Wastewater influent/effluent water quality data • Existing condition and deficiencies of all components of the present system, including: o mechanical components o lagoons o spray-fields • Existing lagoon treatment system and spray irrigation plans and O&M manual • NHDES Groundwater Discharge Permit, available permit monitoring reports, and available groundwater and surface water monitoring data Task 2 – Development of Design Flow and Loads • Identify flow and water quality data gaps (if any) and recommend additional flow monitoring and water quality sampling/analysis if needed. • Determine expected wastewater needs for current usage and any planned expansions of the Mount Sunapee Report, based on input from DNCR and Vail, and develop design flows and loads for a minimum period of the next 20 years, in accordance with Env-Wq 707.04 (b), (c)(2)(4)(5). • Prepare a technical memorandum presenting flow and load analysis. Task 3 – Evaluation of Wastewater Disposal Options and Water Quality Requirements Evaluate potential effluent disposal options and required effluent quality for the wastewater treatment system, including but not limited to: • Spray irrigation (current practice) • Leaching fields • Pumping to a publicly owned treatment works facility in the vicinity of the Mount Sunapee Resort. • The effluent standards are based on the discharge point; groundwater or surface water. For discharges to groundwater, the state’s groundwater quality standards need to be met, and a groundwater discharge permit obtained. For discharges to surface water, the state’s surface water quality standards need to be met (Env-Wq 1700), and an NPDES permit from EPA Region 1 needs to be obtained.
