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Tri-City/William Lloyd Analytical Lab

Hennepin County

9300 Poplar Bridge Road, Bloomington, MN 55437

952-563-4904

Drinking-water tests for private wells (4)BacteriaNitrateArsenicManganese
  • Total coliform bacteria
  • Nitrate (as N)
  • Arsenic
  • Manganese

From the MDH list of accredited labs accepting private well samples (October 2026), checked 2026-11-03. For other contaminants, use the MDH accredited lab search.

Listed by the Minnesota Department of Health (MDH) as an accredited lab that accepts drinking-water samples from private well users. Listing checked 2026-11-03. Call the lab before sampling to confirm current accreditation, prices, sample bottles and holding times.