PlainWater
Counties → California

Imperial County, California

Water Systems
79
Population Served
186,350
Total Violations
1,878
610 health-based
PFAS Detected
10
of 11 tested

Violation Analysis

94.9%
Systems with Violations
23.8
Avg Violations per System
32.5%
Health-Based Violations

Water Source Types

SW
34 systems (43%)
GW
16 systems (20%)

PFAS Contamination

11
Systems Tested
10
PFAS Detected
90.9%
Detection Rate

PFAS (per- and polyfluoroalkyl substances) are persistent chemicals found in drinking water. The EPA has set enforceable limits for several PFAS compounds under UCMR5 monitoring.

Compliance Snapshot

Imperial California water systems by violation status, EPA SDWIS records.

No violations on record (2) One or more violations (48)

Violation history is cumulative, many flagged systems have already returned to compliance. Detail pages show per-system context.

Water Systems

System Name Population Violations PFAS
El Centro, City Of 43,772 12 Clean
Calexico, City Of 40,357 17 Clean
Brawley, City Of 26,862 23 Clean
Imperial, City Of 21,591 39 Clean
Imperial Valley College 8,150 33 Clean
Gswc - Calipatria 7,363 6 Clean
Heber Public Utility District 6,979 51 Clean
Holtville, City Of 6,355 56 Clean
Calipatria State Prison 4,800 10 Clean
Centinela State Prison 4,100 57 Clean
Westmorland, City Of 2,202 60 -
Gateway 1,800 10 -
Seeley Cwd 1,729 131 -
McCabe Union School 1,250 40 -
Sunbeam Lake RV Resort 650 8 -
Naf El Centro 637 15 -
Country Life Mh & RV Park 600 36 -
Meadows Union Elementary School 550 41 Clean
Pilot Knob RV Resort 500 12 -
Palo Verde County Water Dist. 410 31 -
Ocotillo RV Resort 400 12 -
Winterhaven County Water District 394 32 -
Dhs Calexico 330 34 -
Spreckels Sugar Company 300 28 -
Gsa Calexico Port of Entry 300 41 -
Mesquite Mines Inc. 290 36 -
U.S. Gypsum Co 280 22 -
Pine Union School 217 28 -
Date Gardens Mobile Home Park 202 40 -
Old Eucalyptus Schoolhouse 200 4 -
Mitchells Camp Family Assoc. 175 12 -
Picacho State Reservation Area 155 19 -
Ocotillo Mutual Water Co 150 14 -
Magnolia Union School 142 11 -
Sportsmans Paradise 138 21 -
Rio Bend RV Golf Resort & Storm Crossing 130 16 -
Coyote Valley Mutual Water Co 125 18 -
Calenergy (Vulcan Power Plant) 108 0 -
Walters Camp RV Park 102 31 -
Mulberry Union School 85 13 -
Sonny Bono Salton Sea Wildlife Refuge 78 2 -
Valley Mobile Home Park 70 72 -
IV Desert Museum Society Inc. 64 6 -
Salamander Trailer Park 60 32 -
La Valle Sabbia Inc. 60 10 -
Gordon's Well #1 50 16 -
Gordon's Well Park # 2 50 12 -
Brandt Cattle 50 8 -
Calenergy (Administrative) 48 0 -
Allied Waste of Imperial Valley 45 18 -

Other Counties in California

Los Angeles County
276 systems · 10,109,089 served · 3,972 violations
San Diego County
197 systems · 3,744,323 served · 4,832 violations
Orange County
46 systems · 3,201,893 served · 507 violations
Riverside County
201 systems · 2,839,125 served · 6,103 violations
San Bernardino County
318 systems · 2,830,626 served · 4,611 violations
Alameda County
27 systems · 2,249,634 served · 275 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in Imperial County? ▼
Imperial County has 1,878 total drinking water violations across 79 water systems, of which 610 are health-based violations. 94.9% of systems have at least one violation.
How many people get water from Imperial County systems? ▼
Water systems in Imperial County serve approximately 186,350 people through 79 public water systems.
Has PFAS been detected in Imperial County water? ▼
Of 11 water systems tested for PFAS in Imperial County, 10 had PFAS detected (90.9% detection rate).
What types of water sources supply Imperial County? ▼
Water systems in Imperial County use SW (34 systems), GW (16 systems) as their primary water sources.
Are health-based violations serious? ▼
Health-based violations indicate that drinking water exceeded Maximum Contaminant Levels (MCLs) set by the EPA or failed treatment technique requirements. 32.5% of Imperial County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Data Sources & Methodology

Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). PFAS testing data from the UCMR5 monitoring program. SDWIS tracks all public water systems regulated under the Safe Drinking Water Act.

Violations are categorized as health-based (Maximum Contaminant Level exceedances, treatment technique failures) or monitoring/reporting violations. Not all violations indicate an immediate health risk.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.