City overview · Williamson County
PFAS in Round Rock, TX
High RiskEPA UCMR 5 tested 8 public water systems serving the Round Rock area across 5 ZIP codes. At least one utility serving Round Rock has PFAS above the EPA's enforceable limit.
Plain English
01What this means for Round Rock
Across the 8 public water systems tested in the Round Rock 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 Round Rock
- High Risk
MANVILLE WSC
11 detected · 3 above limit · PWSID TX2270033
- High Risk
JONAH WATER SUD
8 detected · 2 above limit · PWSID TX2460022
- High Risk
CITY OF GEORGETOWN
8 detected · 2 above limit · PWSID TX2460001
- High Risk
WINDERMERE COMMUNITY
7 detected · 1 above limit · PWSID TX2270161
- High Risk
CITY OF AUSTIN WATER & WASTEWATER
6 detected · 1 above limit · PWSID TX2270001
- Moderate
BRUSHY CREEK MUD
6 detected · 0 above limit · PWSID TX2460061
- Moderate
CITY OF ROUND ROCK
5 detected · 0 above limit · PWSID TX2460003
- Low Level
FERN BLUFF MUD
2 detected · 0 above limit · PWSID TX2460128
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 Round Rock 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.