Confirm the provider
Use the water bill, lease, closing documents, or utility account. Do not assign a city's largest utility to every address.
Bloomington's Monroe Reservoir supply contrasts with the groundwater systems and private wells serving nearby communities.
Bloomington's Monroe Reservoir supply contrasts with the groundwater systems and private wells serving nearby communities.
This region's planning themes include reservoir treatment, seasonal taste and odor, disinfection byproducts, groundwater minerals, and UCMR monitoring. The current directory contains 3 researched city pages, with a launch snapshot of 2 groundwater public supply, 1 surface-water public supply. These categories are orientation—not a substitute for the current report at a specific address.

Open a city page to see the likely public system, source type, PWSID when verified, report-reading questions, PFAS and UCMR context, and treatment decision path.
Use the water bill, lease, closing documents, or utility account. Do not assign a city's largest utility to every address.
Check the reporting year, source, detected contaminants, compliance statements, lead information, and unregulated monitoring notes.
Use an appropriate laboratory or field test when the report cannot answer a premise-plumbing, private-well, or address-specific question.
Confirm the supplier or well, collect the right evidence, compare complete treatment claims, and review installation and financing before buying.