County · California
Imperial County, California: drinking water records
This overview covers 15 ZIP codes and 32 community water systems in Imperial County. It also stands in for 2 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Calexico, City of CA1310002 | 40,357 | 120 | 0 | 2 | 0 ppb |
| Imperial, City of CA1310006 | 21,591 | 70 | 0 | 7 | 0 ppb |
| Heber Public Utility District CA1310007 | 6,979 | 120 | 0 | 3 | 0 ppb |
| El Centro, City of CA1310004 | 43,772 | 95 | 0 | 0 | 0 ppb |
| Brawley, City of CA1310001 | 26,862 | 120 | 0 | 0 | 0 ppb |
| Gswc - Calipatria CA1310003 | 7,363 | 120 | 0 | 0 | 0 ppb |
| Holtville, City of CA1310005 | 6,355 | 120 | 0 | 0 | 0 ppb |
| Calipatria State Prison CA1310800 | 4,800 | 120 | 0 | 0 | 2.4 ppb |
| Centinela State Prison CA1310801 | 4,100 | 120 | 0 | 0 | 1.6 ppb |
| Westmorland, City of CA1310008 | 2,202 | 0 | 0 | 5 | 0 ppb |
| Gateway CA1300018 | 1,800 | 0 | 0 | 2 | 0 ppb |
| Seeley Cwd CA1310013 | 1,729 | 0 | 0 | 6 | 0 ppb |
| Sunbeam Lake RV Resort CA1300626 | 650 | 0 | 0 | 2 | 0 ppb |
| Country Life Mh & RV Park CA1300550 | 600 | 0 | 0 | 1 | 0 ppb |
| Palo Verde County Water Dist. CA1300616 | 410 | 0 | 0 | 3 | 3.4 ppb |
| Winterhaven County Water District CA1300009 | 394 | 0 | 0 | 1 | 0 ppb |
| Date Gardens Mobile Home Park CA1300575 | 202 | 0 | 0 | 1 | 0 ppb |
| Ocotillo Mutual Water Co CA1300513 | 150 | 0 | 0 | 1 | 0.7 ppb |
| Rio Bend RV Golf Resort & Storm Crossing CA1300620 | 130 | 0 | 0 | 1 | 1.2 ppb |
| Coyote Valley Mutual Water Co CA1300514 | 125 | 0 | 0 | 1 | 0 ppb |
| Mitchells Camp Family Assoc. CA1300555 | 125 | 0 | 0 | 1 | 2.1 ppb |
| Country View Mobile Home Community LLC WI1130248 | 80 | 0 | 0 | 3 | 0.3 ppb |
| Softwinds Mobile Home Park AZ0413122 | 70 | 0 | 0 | 10 | 3.9 ppb |
| Valley Mobile Home Park CA1300572 | 70 | 0 | 0 | 1 | 0.7 ppb |
| Gold Rock Ranch CA1300546 | 40 | 0 | 0 | 1 | 1.5 ppb |
ZIP reports in Imperial County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 92222, 92275.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.