Well Water in Lake County: What to Test and Why

Groundwater in Lake County contains HFPO-DA, PFBS, and PFHXS--per- and polyfluoroalkyl substances known as PFAS. Contamination levels here are low, with no exceedances of EPA health standards.

PFAS chemicals come from industrial uses, manufacturing sites, and sometimes firefighting foam at airports or military facilities. These substances move through groundwater slowly and can persist in the environment for years. Local land use patterns and proximity to industrial or commercial areas influence whether PFAS reaches private wells.

Without available data on minerals like iron and hardness, the mineral character of groundwater here remains unclear. The "other rocks" aquifer type underlying the county is varied in composition and does not strongly suggest elevated hardness or iron. Water quality varies between wells, so testing your specific well is the only way to know its mineral content.

Wells in Lake County can contain per- and polyfluoroalkyl substances, also known as PFAS compounds. These chemicals do not break down easily in the environment or in your body. Health experts are concerned about PFAS exposure over many years because these substances can build up in your blood and may affect your liver, thyroid, and immune system. Research is still ongoing about the full health effects, but federal agencies are monitoring PFAS levels closely in drinking water across the country.

We don't have information about mineral content like iron, sodium, or hardness levels in Lake County wells, so we cannot describe typical staining, taste, or scale buildup issues for this area. Your well may have different mineral characteristics than others nearby. Testing is the best way to learn what minerals are present in your water.

We recommend testing your well water to find out if PFAS or other contaminants are present in your specific supply. Every well is different, and your well may have higher or lower levels than what is common elsewhere in the county. Testing is the only way to know what is actually in your water so it can be treated properly if needed. A basic test runs around fifty to one hundred dollars, while a comprehensive panel costs two hundred to four hundred dollars.