MITIGATION MEASURES FOR THE PROPOSED ACTION DESCRIPTION OF RESPONSIBLE PARTY INDICATORS METHODS FREQUENCY MITIGATION MEASURE 1. Identify and integrate the DOR/Project Manager Number and type of other Identify through community interviews, available Planning Phase spatial aspect and water uses in watershed information other activities and land uses in the relationship of all users in a affected watershed that could influence available drainage system including water or be affected by the proposed project. the size and locations of Information is incorporated in design other reservoirs on those specifications and used by the project manager to tributaries, and the water resolve potential conflicts with other activities. rights within the system. 2. For Alternative 2 (Option Project Manager Flow volume (m3/hour) Utilize the guidance in USAID Best Management Monthly B, and C and Alternative 3, Practices for Small Hydroelectric Projects (USAID monitor and maintain 2012) ecological flows 3. Measure NNIS as indicators Project Manager # occurrences Where land ownership patterns permit, establish Prior to construction of stream health for five permanent two-meter diameter plots within and Annually during #species systems utilizing springs 100 meters of water diversion. growing season (Alternative 2 Option) and Alternative 3. 4. To assure that only water DOR Flow volume (m3/hour) This will allow the weir to be calibrated to collect Design phase for peak flow is collected; only water above the mean flow. Optional the mean flow shall be diversion methods would include either a estimated using either the standard diversion weir with pipes at the bottom rational formula with to allow water to pass up to the ecological flow, intensity equivalent to one or at the base of the natural channel define the year period, or by height of the water surface for the ecological duplicating the ecological discharge and construct a lateral weir that allows flow defined on the withdraw of water only above that level. hydroelectrical ecological flow guide.
MITIGATION MEASURES FOR THE PROPOSED ACTION DESCRIPTION OF MITIGATION MEASURE RESPONSIBLE PARTY INDICATORS METHODS FREQUENCY 1. Identify and integrate the spatial aspect and relationship of all users in a drainage system including the size and locations of other reservoirs on those tributaries, and the water rights within the system. DOR/Project Manager Number and type of other water uses in watershed Identify through community interviews, available information other activities and land uses in the affected watershed that could influence available water or be affected by the proposed project. Information is incorporated in design specifications and used by the project manager to resolve potential conflicts with other activities. Planning Phase 2. For Alternative 2 (Option B, and C and Alternative 3, monitor and maintain ecological flows Project Manager Flow volume (m3/hour) Utilize the guidance in USAID Best Management Practices for Small Hydroelectric Projects (USAID 2012) Monthly 3. Measure NNIS as indicators of stream health for systems utilizing springs (Alternative 2 Option) and Alternative 3. Project Manager # occurrences #species Where land ownership patterns permit, establish five permanent two-meter diameter plots within 100 meters of water diversion. Prior to construction and Annually during growing season 4. To assure that only water for peak flow is collected; the mean flow shall be estimated using either the rational formula with intensity equivalent to one year period, or by duplicating the ecological flow defined on the hydroelectrical ecological flow guide. DOR Flow volume (m3/hour) This will allow the weir to be calibrated to collect only water above the mean flow. Optional diversion methods would include either a standard diversion weir with pipes at the bottom to allow water to pass up to the ecological flow, or at the base of the natural channel define the height of the water surface for the ecological discharge and construct a lateral weir that allows withdraw of water only above that level. Design phase
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