Cascade Reservoir watershed phase III water quality management plan and TMDL five-year review

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This document presents a five-year update of the Cascade Reservoir subbasin assessment/ total maximum daily load (SBA/TMDL). The findings of the Phase I and II TMDLs for Cascade Reservoir watershed clearly indicate that recreation, coldwater aquatic life, and agricultural water supply are not fully supported in Cascade Reservoir. The majority of negative effects in the tributary streams were observed to occur near their inflow to the reservoir. The Cascade Reservoir subwatershed, hydrologic unit code (HUC) 17050123, encompasses the North Fork Payette River subbasin from below Payette Lake to Cascade Dam (Figure 1). This document addresses the water bodies in the Cascade Reservoir subbasin that are on Idaho’s current and most recent draft 2008 §303(d) list. This five-year review has been developed to comply with Idaho Statute 39-3611(7). The review describes the existing TMDL(s); beneficial use support status; pollutant sources; current water quality data; and recent pollution control actions in the Cascade Reservoir Subbasin, located in west-central Idaho. The TMDLs subject to five-year review are shown in Table A.

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SWAP (2/19/16) citation:
[IDEQ] Idaho Department of Environmental Quality, Boise Regional Office. 2009. Cascade Reservoir watershed phase III water quality management plan and TMDL five year review. Boise (ID): Idaho Department of Environmental Quality. [accessed 2016 Feb 19]. http://www.deq.idaho.gov/media/452918-_water_data_reports_surface_water_...