Water quality samples were gathered monthly by BRA personnel from February 1992 to April 1993. Grab samples were taken from the monitoring well and from the cove or lake. The wells were removed in May 1993. Initially, it was planned that tracer tests would be conducted to follow how pollutants flowed from plumbing systems to the lake. The tracer tests were not conducted.
Results show that fecal coliform levels are inversely related to lake levels.
Lake levels were highest at the beginning of the study and declined through the first eight months. Coliform levels were highest during December for all sites. This suggests that there may be a closer relationship between groundwater and surface waters than was previously understood. The data also suggest that there are increasing levels and increasing frequencies of fecal coliforms in the main body of the lake. COD levels were slightly elevated, but were twice as high at Holiday Estates than any other site.