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OROFINO CREEK STUDY, CLEARWATER COUNTY IDAHO, 1979
Description:
In Water Year 1979, a water quality study was conducted on Orofino Creek in Clearwater County, Idaho (17060306) to determine the present condition of the stream and to assess the impact of point and nonpoint sources. The study involved approximately bi-monthly monitoring for the following parameter categories: temperature, dissolved oxygen, pH, bacteria, oxygen demand, solids, select ions, nutrients, and trace inorganic toxins. The study covered 4 mainstem stations, 3 tributary stations, and the City of Pierce discharge. The data from the study indicates that Orofino Creek generally meets the water quality standards except for consistent bacteria violations from below the Pierce discharge to the mouth of Orofino Creek. Excessive turbidity was also evident on Whiskey Creek and at the mouth of Orofino Creek during spring runoff, and iron concentrations were above recommended criteria at the mouth on 3 occasions. The notable pollution impacts on the stream were the Albert Engle discharge at Pierce and the City of Pierce discharge. Water Quality Summary No. 12. October 1980. Department of Health and Welfare, Division of Environment, Boise, ID.