Publication Summary

A recent water quality survey of Oakland Bay in Mason County, Washington, prompted the revision of the shellfish harvesting classification due to high bacteria concentrations. Further investigation resulted in discovery of a number of potentially important bacteria sources. These were stormwater discharges, industrial effluent, and two creeks that flow into the inner harbor. An estimate of the importance of each bacteria source is made. Their relationship to wet-weather conditions also is discussed, although relatively dry weather was experienced during the investigation. Recommendations for source control and further investigative efforts are made.