CheckPFAS

City overview · Yellowstone County

PFAS in Billings, MT

Low Level

EPA UCMR 5 tested 6 public water systems serving the Billings area across 6 ZIP codes. Only trace PFAS were detected across Billings's tested systems.

Water systems tested
6
Systems above EPA limits
0
ZIP codes covered
6
County
Yellowstone County, Montana

Plain English

01What this means for Billings

The water systems serving the Billings area measured only low, trace concentrations of PFAS — well below the EPA's Maximum Contaminant Levels. For most residents this represents minimal risk from drinking water. Review your specific ZIP below, and check your utility's annual Consumer Confidence Report for year-over-year trends.

By utility

02Water systems serving Billings

  1. BILLINGS CITY OF

    1 detected · 0 above limit · PWSID MT0000153

    Low Level

  2. LOCKWOOD WATER AND SEWER DISTRICT

    1 detected · 0 above limit · PWSID MT0000156

    Low Level

  3. MONTANA STATE UNIVERSITY BILLINGS

    1 detected · 0 above limit · PWSID MT0004788

    Low Level

  4. ROCKY MOUNTAIN COLLEGE

    1 detected · 0 above limit · PWSID MT0004796

    Low Level

  5. CO WATER DIST OF BILLINGS HEIGHTS

    1 detected · 0 above limit · PWSID MT0000155

    Low Level

  6. BLACK ROCK ESTATES SUBDIVISION

    1 detected · 0 above limit · PWSID MT0004881

    Low Level

By ZIP code

03Find your exact result

Contamination can differ block to block. Select your ZIP code for the precise reading at the utility that serves your address.

591015910259103591045910559106

Source & Methodology

About this data

Source
EPA UCMR 5
Sampling period
January 2023 – December 2025
Aggregation
6 utilities across 6 ZIP codes
Detection threshold (MRL)
~1.5–2 ppt

City-level figures aggregate the individual public water systems tested under EPA UCMR 5 whose service area falls within the Billings area. Values reflect water quality at the treatment plant; your home's plumbing can affect what reaches your tap. Select your ZIP above for the utility-specific reading.