💧 ZIP Water Report

Tap water in San Diego, CA — ZIP 91911

4 public water systems serving about 1,942,007 people. PFAS "forever chemicals" have been detected here.

C
Fair
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 91911

San Diego, City Of
PWSID CA3710020 · serves 1,408,937 · surface water
0 health-based / 0 total violations (5 yrs)
A
Otay Water District
PWSID CA3710034 · serves 242,155 · surface water
0 health-based / 0 total violations (5 yrs)
A
Sweetwater Authority
PWSID CA3710025 · serves 184,915 · surface water
0 health-based / 0 total violations (5 yrs) · PFAS up to 12.3 ppt — above federal limit
C
Cal-Am Water Coronado
PWSID CA3710001 · serves 106,000 · surface water
1 health-based / 1 total violations (5 yrs)
B

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