City overview · Arapahoe County
PFAS in Littleton, CO
High RiskEPA UCMR 5 tested 6 public water systems serving the Littleton area across 11 ZIP codes. At least one utility serving Littleton has PFAS above the EPA's enforceable limit.
Plain English
01What this means for Littleton
Across the 6 public water systems tested in the Littleton 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 Littleton
- High Risk
PARKER WSD
6 detected · 1 above limit · PWSID CO0118040
- Moderate
ENGLEWOOD CITY OF
6 detected · 0 above limit · PWSID CO0103045
- Moderate
NORTHERN DOUGLAS COUNTY WSD
5 detected · 0 above limit · PWSID CO0118016
- Moderate
CENTENNIAL WSD
5 detected · 0 above limit · PWSID CO0118015
- Low Level
DENVER WATER BOARD
1 detected · 0 above limit · PWSID CO0116001
- Low Level
ROXBOROUGH WSD
1 detected · 0 above limit · PWSID CO0118055
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 Littleton 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.