Tap water in Patterson, LA — ZIP 70380
3 public water systems serving about 39,448 people. PFAS "forever chemicals" have been detected here.
B
Good
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 70380
Assumption Parish Ww District 1
PWSID LA1007001 · serves 21,366 ·
surface water
0 health-based / 0 total violations (5 yrs)
· PFAS up to 15 ppt
City Of Morgan City Water System
PWSID LA1101005 · serves 12,703 ·
surface water
1 health-based / 1 total violations (5 yrs)
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