Bi-State Program, Additional Reports. Bacteria Studies, Sep-Oct 1992 & Nov-Dec 1992.
September - October 1992:
High enterococcus bacteria counts detected during a reconnaissance survey in 1991 indicated a possible public health risk in the lower Columbia River. The purpose of this project was to determine if a chronic public health risk exists during high contact recreation periods due to bacteria contamination. Ecology sampled twelve stations between the mouth of the Columbia River and river mile 170 (Hood River) weekly- from September 1 to October 12, 1992.