Tap water in Karnes City, TX — ZIP 78140

2 public water systems serving about 16,638 people. PFAS "forever chemicals" have been detected here.

Poor

PFAS detected: at least one system serving this ZIP reported PFAS in EPA UCMR 5 testing. Levels and the 2024 federal limits are shown per system below.

Water systems serving 78140

Gonzales County Wsc

PWSID TX0890006 · serves 10,350 · surface water

0 health-based / 2 total violations (5 yrs) · PFAS up to 6.1 ppt

El Oso Wsc

PWSID TX1280007 · serves 6,288 · groundwater

2 health-based / 3 total violations (5 yrs)

Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology