City overview · Los Angeles County
PFAS in Covina, CA
High RiskEPA UCMR 5 tested 6 public water systems serving the Covina area across 3 ZIP codes. At least one utility serving Covina has PFAS above the EPA's enforceable limit.
Plain English
01What this means for Covina
Across the 6 public water systems tested in the Covina 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 Covina
- High Risk
VALENCIA HEIGHTS WATER CO.
7 detected · 2 above limit · PWSID CA1910163
- High Risk
AZUSA LIGHT AND WATER
3 detected · 2 above limit · PWSID CA1910007
- High Risk
GSWC-SAN DIMAS
2 detected · 1 above limit · PWSID CA1910142
- Moderate
SUBURBAN WATER SYSTEMS-SAN JOSE
5 detected · 0 above limit · PWSID CA1910205
- Low Level
COVINA-CITY, WATER DEPT.
1 detected · 0 above limit · PWSID CA1910127
- Low Level
WALNUT VALLEY WATER DISTRICT
1 detected · 0 above limit · PWSID CA1910234
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 Covina 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.