City overview · Denver County
PFAS in Denver, CO
High RiskEPA UCMR 5 tested 7 public water systems serving the Denver area across 43 ZIP codes. At least one utility serving Denver has PFAS above the EPA's enforceable limit.
Plain English
01What this means for Denver
Across the 7 public water systems tested in the Denver area under EPA UCMR 5, one or more measured a PFAS compound above the federal Maximum Contaminant Level. Contamination varies by utility and neighborhood — find your exact ZIP code below to see the system that serves you. If you're in an affected area, an NSF/ANSI 53 or 58 certified filter (carbon block or reverse osmosis) is the most reliable way to reduce PFAS at the tap.
By utility
02Water systems serving Denver
- High Risk
THORNTON CITY OF
9 detected · 2 above limit · PWSID CO0101150
- Low Level
CONSOLIDATED MUTUAL MAPLE GROVE
4 detected · 0 above limit · PWSID CO0130020
- Low Level
DENVER WATER BOARD
1 detected · 0 above limit · PWSID CO0116001
- Low Level
CONSOLIDATED MUTUAL WATER COMPANY
1 detected · 0 above limit · PWSID CO0130145
- Low Level
NORTHGLENN CITY OF
1 detected · 0 above limit · PWSID CO0101115
- Low Level
WESTMINSTER CITY OF
1 detected · 0 above limit · PWSID CO0101170
- Low Level
FEDERAL HEIGHTS CITY OF
1 detected · 0 above limit · PWSID CO0101055
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.
Source & Methodology
About this data
City-level figures aggregate the individual public water systems tested under EPA UCMR 5 whose service area falls within the Denver 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.