PlainWater
Counties → California

Inyo County, California

Water Systems
111
Population Served
49,669
Total Violations
1,965
791 health-based
PFAS Detected
0
of 1 tested

Violation Analysis

91.9%
Systems with Violations
17.7
Avg Violations per System
40.3%
Health-Based Violations

Water Source Types

GW
49 systems (44%)
SW
1 system (1%)

PFAS Contamination

1
Systems Tested
0
PFAS Detected
0.0%
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

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

No violations on record (3) One or more violations (47)

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
Bishop Creek Chevron 16,793 0 -
Bishop, City Of 3,819 13 Clean
Petite Pantry 3,012 35 -
Lee's Frontier 2,000 0 -
Inyo County Pwd - Lone Pine 1,835 23 -
Pearsonville Water System 1,515 13 -
Highland Mobile Home Park 1,400 5 -
Rolling Green Utilities, Inc. 1,225 25 -
Inyo County Pwd - Independence 1,108 21 -
Indian Creek Csd 1,030 1 -
Cal Trans - Coso Junction 1,000 0 -
Big Pine Csd 792 9 -
Meadowcreek Mutual Water Company 764 15 -
Coso Junction Ranch Store 715 16 -
Sierra Highland Csd 600 10 -
Millpond Recreation Area 500 32 -
Diaz Lake Campground 500 23 -
Whitney Portal 500 12 -
Glenwood Mobile Estates 468 4 -
Mountain View Trailer Court 320 7 -
Four Jeffrey Campground 318 1 -
Owens Valley Water Resources, Inc. 311 13 -
Bishop Creek Lodge 305 29 -
Bishop Creek System 300 4 -
Cal Trans - Division Creek 300 3 -
Horseshoe Meadow Campground 300 6 -
Nps - Manzanar 298 2 -
Eastern Sierra College Center - Bishop 290 129 -
Astorgas Water System 250 29 -
Charles Brown Water Company 242 79 -
Starlite Community Service District 241 15 -
Tecopa Water Vending Machine 241 3 -
Pine Creek Village 240 89 -
Panamint Springs Resort 218 8 -
Death Valley Junction 201 33 -
High Sierra Water Company 200 4 -
Park West Mutual Water Company 188 2 -
Bernasconi Education Center 178 5 -
Keough's Hot Springs 175 33 -
Nps - Death Valley, Stovepipe Wells 175 7 -
Bishop Country Club 167 18 -
Wilson Circle Mutual Water Company 158 6 -
Schober Lane Campground 150 6 -
Quality Inn System 150 12 -
Nps - Death Valley, Furnace Creek 150 5 -
Nps - Death Valley, Emigrant Ra/Cg 150 2 -
Sierra Grande Estates Mutual Water Co. 138 8 -
Cartago Mutual Water Company 132 13 -
Brookside Mobile Home Park 126 4 -
Upper Sage Flat Campground 126 4 -

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 Inyo County? ▼
Inyo County has 1,965 total drinking water violations across 111 water systems, of which 791 are health-based violations. 91.9% of systems have at least one violation.
How many people get water from Inyo County systems? ▼
Water systems in Inyo County serve approximately 49,669 people through 111 public water systems.
Has PFAS been detected in Inyo County water? ▼
Of 1 water systems tested for PFAS in Inyo County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply Inyo County? ▼
Water systems in Inyo County use GW (49 systems), SW (1 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. 40.3% of Inyo 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.