Tap water in Patterson, LA — ZIP 70392
2 public water systems serving about 13,835 people. PFAS "forever chemicals" have been detected here.
F
Failing
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 70392
City Of Patterson Water System
PWSID LA1101006 · serves 8,456 ·
surface water
7 health-based / 8 total violations (5 yrs)
· PFAS up to 6.1 ppt
St Mary Parish W&s #2 Bayou Vista
PWSID LA1101015 · serves 5,379 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 6.9 ppt
Grades summarize EPA SDWIS violation records (last 5 years) and UCMR 5 PFAS results. They are informational, not a health determination. Methodology