Beach Park Water Hardness & Quality Report (2026)

The Village of Beach Park Water Department provides water to roughly 14,000 people in Beach Park, an unincorporated community in northeastern Illinois' Lake County. Their supply comes from two main sources: Lake Michigan, accessed through the Central Lake County Joint Water Agency (CLCJWA), and supplementary local groundwater wells. All raw water is processed at the CLCJWA treatment plant in Lake Forest. Here, it undergoes filtration, disinfection, and chemical adjustments before being sent out to Beach Park residents, schools, and businesses. The utility doesn't operate its own secondary treatment facilities within the village.

The water's journey begins in the Lake Michigan watershed, with an intake point in the lake's nearshore area off northern Illinois. This surface water is then blended with water from unconfined glacial drift aquifers. These aquifers sit atop Silurian-age dolomite and limestone bedrock, part of the larger Lake Michigan shoreline aquifer system. This geological makeup is why the blended water tends to be hard. As water percolates through the Silurian carbonate rocks, it picks up calcium and magnesium. In contrast, Lake Michigan water, shaped by glacial activity, is naturally softer. The combination yields a supply with moderate mineral content, characteristic of this region of Illinois.

This moderately hard to hard water can lead to noticeable scale buildup in household plumbing, water heaters, dishwashers, and washing machines. Such buildup not only reduces the efficiency of these appliances but can also shorten their lifespan, often necessitating annual descaling. Homeowners might also observe white deposits on faucets and sinks, and may need to use more soap or detergent to achieve a good lather. To combat these effects, particularly spotting on glassware and premature appliance wear, installing a water softener is highly recommended. This system should be placed after the water meter, requiring regular salt refills and proper management of brine discharge. While Beach Park's 2023 Consumer Confidence Report confirms compliance with EPA standards for drinking water contaminants, including disinfectants and disinfection byproducts, the Illinois EPA notes the Lake Michigan source's susceptibility to pollution. However, the treatment process effectively keeps turbidity and coliform levels low.