PlainWater
Counties → California

Calaveras County, California

Water Systems
52
Population Served
56,388
Total Violations
1,548
268 health-based
PFAS Detected
2
of 7 tested

Violation Analysis

96.2%
Systems with Violations
29.8
Avg Violations per System
17.3%
Health-Based Violations

Water Source Types

GW
36 systems (69%)
SW
14 systems (27%)

PFAS Contamination

7
Systems Tested
2
PFAS Detected
28.6%
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

Calaveras 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
Ccwd - Ebbetts Pass 11,545 21 Clean
Ccwd - Jenny Lind 9,861 11 Clean
Calaveras PUD 6,286 18 Clean
Ccwd - Copper Cove 5,187 6 Clean
Blue Lake Springs Mut Wtr 4,841 6 Clean
Union Public Utility District 4,774 37 Clean
Angels, City Of 3,836 25 Clean
U.S. Army Corp New Hogan 1,860 5 -
Ccwd - West Point 1,043 21 -
Valley Springs PUD 900 10 -
Camanche South Shore-Ebmud 828 12 -
Snowshoe Springs Assn. 686 10 -
Big Meadows Campground 390 29 -
Angels Camp RV/Camping Resort 288 101 -
Ccwd - Wallace 255 3 -
Camp Wolfeboro 250 36 -
El Torero Restaurant 225 19 -
Moaning Cavern 215 8 -
Toyon Middle School 200 63 -
Okizu Foundation 165 0 -
Camp Lodestar 150 51 -
Rite of Passage/Sierra Ridge 150 79 -
Mountain Ranch Water System 150 0 -
Camp Menzies 150 16 -
Toyon Park Water System LLC 150 51 -
Sherman Acres Mutual Water Asn 120 16 -
American Legion Post #376 120 52 -
Sky High Ranch HOA 103 40 -
New Melones Lake Marina 100 24 -
Stanislaus River Campground 100 34 -
Morning Star Outreach 100 26 -
Cusd District Office 100 54 -
Glory Hole Recreation Area 100 10 -
Lili Valley Water Co. 99 53 -
Dunrovin Mobile Home Village 99 71 -
Ccwd - Sheep Ranch 89 2 -
Vine & Branch Fellowship 85 62 -
Burson Full Gospel Church 80 18 -
California Caverns 80 21 -
Stone Corral Community Church 80 27 -
United Parcel Service 75 39 -
Mineral Mountain Mutual Water 67 85 -
Salt Springs Valley Res. & Campgrnd 60 46 -
Cottage Springs Water Co. 51 81 -
Tamarack Cabin Owners Assn 50 27 -
Pardee Center 50 32 -
Dream Mountain Christian Camp Inc. 50 10 -
Mact Health Board, Inc. 35 2 -
Tamarack Springs Mutual Water 30 50 -
Lakeside Mobile Estates 30 10 -

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 Calaveras County? ▼
Calaveras County has 1,548 total drinking water violations across 52 water systems, of which 268 are health-based violations. 96.2% of systems have at least one violation.
How many people get water from Calaveras County systems? ▼
Water systems in Calaveras County serve approximately 56,388 people through 52 public water systems.
Has PFAS been detected in Calaveras County water? ▼
Of 7 water systems tested for PFAS in Calaveras County, 2 had PFAS detected (28.6% detection rate).
What types of water sources supply Calaveras County? ▼
Water systems in Calaveras County use GW (36 systems), SW (14 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. 17.3% of Calaveras 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.