In the spring of 1992 the Credit Valley Conservation Authority (CVCA) became involved in the Ontario Ministry of Environment and Energy’s (MOEE) Clean Up Rural Beaches (CURB) Program in order to address rural bacterial sources impacting on the West Credit River and the downstream swimming beach at the Belfountain Conservation Area. Within the two year Rural Beaches Study, extensive research that included water quality monitoring, field, stream and farm surveys, was undertaken to assess water quality impairment and sources of bacterial pollution. As a result of the data gathered during the two year study a CURB Plan for the West Credit River Watershed was developed. Based on a mathematical model the CURB Plan predicts bacterial contribution of all identified pollution sources to watercourses and subsequently to the swimming area. The Plan also outlines an estimated cost for the remedial measure projects and provides an implementation strategy. The CURB mathematical model calculates the contribution of identified pollution sources during the 92 day summer season and also distinguishes dry and wet weather conditions that occurred during this time period.