2014 Avista Lake Spokane Dissolved Oxygen Water Quality Attainment Plan Summary Report

As part of Avista’s 50-year license to operate Spokane River hydroelectric projects,  there is  a water quality certification (Certification) issued by Ecology under Section 401 of the Clean Water Act (Ecology 2009). Part of this Certification includes Avista’s Development of a Lake Spokane Dissolved Oxygen Water Quality Attainment Plan (DO WQAP). The DO WQAP addresses Avista’s proportional level of responsibility to address Ecology’s Lake Spokane Dissolved Oxygen Total Maximum Daily Load (DO TMDL).

This report provides a summary of the 2014 baseline monitoring, implementation activities, effectiveness of the implementation activities, and proposed actions for 2015.

Avista Lake Spokane DOWQAP 2014 Annual Summary Report