Potential Contaminant Source(s) & Threats that Contribute to Excess Nutrients and Pathogens Leading to Eutrophication and Harmful Algal Blooms (HABs)
Agricultural Runoff (Excess Nutrients)
Excess phosphorus and nitrogen from fields enter tributaries and the reservoir, fueling algal growth, oxygen depletion, and water quality degradation.
On-site Septic Systems
Failing or poorly maintained septic systems release nutrients and pathogens, increasing the risk of eutrophication and microbial contamination.
Land Application Sites (biosolids, septage, etc.)
Application of treated waste materials can introduce PFAs, heavy metals, and nutrients into the watershed through overland flow or infiltration.
Lawn & Garden Chemicals from Waterfront Residential & Golfing Areas
Overapplication of fertilizers and pesticides near shorelines contributes to nutrient runoff and aquatic ecosystem stress.
Warming Temperatures (Linked to Climate Change)
Warmer water accelerates eutrophication and creates conditions favorable to HABs.
Reference pages 1-2 of the Contaminant Summary for more information.