Well Water in Livingston County, Michigan

Livingston County · Population ~195,000 · Aquifer: Glacial Drift / Marshall Sandstone

Hardness: 200-400+ PPM — Hard to Very Hard

Livingston County has one of the highest concentrations of private wells in Southeast Michigan. Nearly every home outside the City of Howell relies on a private well and septic system. The county sits on glacial drift deposits over Marshall Sandstone — a geology that produces hard water with naturally occurring arsenic.

Arsenic in Glacial Deposits

Arsenic is a documented concern in Livingston County wells. Unlike contamination from industrial activity, the arsenic here is naturally occurring — dissolved from the glacial deposits that blanket the county. Michigan's glacial geology concentrates arsenic in certain clay and sand layers, and wells that draw from these zones can exceed the EPA maximum contaminant level of 10 ppb.

Arsenic is tasteless, odorless, and colorless. The only way to know your level is to test. See our arsenic guide for health effects and treatment options.

PFAS Concerns

Livingston County is within the broader Southeast Michigan zone where PFAS contamination has been detected in groundwater. While the county has not had a headline PFAS event like Kalamazoo's Parchment or Rockford's Wolverine World Wide, the proximity to known contamination sites and the widespread use of PFAS-containing products (firefighting foam, industrial coatings) means private well owners should consider testing.

See our PFAS guide for testing options and what the results mean.

Hard Water and Iron

Livingston County water is hard to very hard, typically testing between 200 and 400+ PPM. Iron is commonly elevated, causing rust-colored staining on fixtures, laundry, and toilets. These are quality-of-life issues rather than health threats, but they're universal enough that most well owners end up installing a water softener and iron filter.

Testing Recommendations

Every Livingston County well should be tested for arsenic at least once. Annual testing should include bacteria (total coliform and E. coli), nitrates, and pH. If you're in an area with known or suspected PFAS contamination, add a PFAS panel.

The Livingston County Health Department offers periodic well water screening events. See our testing guide for labs, costs, and free testing options.

Every well is different. Two wells on the same street can produce completely different water. The data on this page reflects documented conditions in the Livingston County area, but the only way to know what's in your water is to test it.

Sources

  • Michigan EGLE — Wellogic Database, Livingston County Extract
  • USGS — Arsenic in Glacial Drift Aquifers of Michigan
  • Livingston County Health Department — Private Well Testing Program
  • Michigan PFAS Action Response Team — Statewide Investigation Data