BM Ross presented an overview of the 2024 Huron-Kinloss Community Septic Inspection Program, outlining Year 2 of Cycle 3. The program helps ensure proper septic system function to protect groundwater and surface water quality. BM Ross also presented the Baseline Surface Water Quality Monitoring Program, which tracks long-term trends in nutrient levels and identifies potential sources of contamination. Both programs contribute to protecting local water resources by monitoring and addressing factors affecting water quality, including aging septic systems and legacy nutrients in soils and groundwater.
Committee of the Whole confirmed that the review under Part 8 of the Ontario Building Code is required when a new septic system is installed.
Committee discussed the Septic Inspection Program and inquired about the implementation of similar programs by neighboring municipalities. Staff reported that smaller municipalities who have implemented the program using existing staff have identified constraints including staff capacity issues.
Committee inquired about whether progress is being made with Past Due Inspections. Courtney reported that when a property with an outstanding inspection transfers ownership, there is an opportunity to bring the property into compliance. This has helped to trend a decline in overdue inspections.
Committee encouraged staff to pursue with vigor the one's who aren't being inspected and the advanced treatment systems which aren't being reported. Committee spoke to the value of the program, and the resources not required for inground sewers and affluent treatment plants along the lakeshore.
The Water Quality Monitoring Program tracks long-term trends and identifies spatial variations in water quality. In 2024, the region experienced the second-lowest annual precipitation in 22 years, influencing water quality outcomes.
E.coli levels generally declined downstream, though elevated levels were noted in Jardine Creek and Royal Oak Creek. Nitrate and phosphorus levels showed some exceedances, particularly upstream, with improvements seen downstream. Historical data suggest a lag in response to best management practices, such as cover crops, with legacy nutrients in soils and groundwater continuing to influence results. The study highlights the importance of ongoing monitoring to track improvements and inform water management decisions.
Committee inquired about whether nitrogen fertilizer could contribute to nitrates. Courtney confirmed that it can be if over-applied. Courtney spoke to the lessening of livestock in the area and speculated that this would contribute to lessening nitrates over time.
Committee inquired about tile drainage and whether it would impact these levels. Courtney confirmed that results can be seen when fertilizers are applied right before a rain storm.