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| Title | Lower Columbia River Bi-State Water Quality Program: Bacteria Study, November - December 1992 | |||
| Month-Year Published | April 1993 | |||
| Online Availability |
2307 kilobytes, requires version 4.0 or later of Adobe Acrobat Reader Software get Acrobat Reader
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| Short Description |
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 12 stations between the mouth of the Columbia River and river mile 170 (Hood River) weekly from September 1 to October 12, 1992. Fecal coliform and enterococcus bacteria were monitored, as well as oxygen, temperature, pH, and conductivity. (Also see abstract below) | |||
| Publication Number | 93-28 | |||
| Author(s) | Ehinger, W. | |||
| Print Availability |
Not maintained in stock. Copy must be made from archive version. Request will be referred to the source program.
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| Number of pages | 31 pp. | |||
| Keywords | bacteria, Columbia River, conductivity, fecal coliform, marina, marine, pH, quality, river, study, temperature, water, water quality, water quality standards | |||
| Subject Waterbodies |
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| Abstract | Long Description |
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 12 stations between the mouth of the Columbia River and river mile 170 (Hood River) weekly from September 1 to October 12, 1992. Fecal coliform and enterococcus bacteria were monitored, as well as oxygen, temperature, pH, and conductivity. Water quality standards for temperature, pH, and percent oxygen saturation were exceeded at several stations. Fecal coliform bacteria standards were exceeded at two stations (Ilwaco Marina and Sauvie Island), but a chronic public health risk is not indicated. Enterococcus bacteria did not exceed standards. |
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This page last updated May 26, 2009
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