PlainWater
Counties → California

Trinity County, California

Water Systems
45
Population Served
14,934
Total Violations
601
262 health-based
PFAS Detected
1
of 1 tested

Violation Analysis

88.9%
Systems with Violations
13.4
Avg Violations per System
43.6%
Health-Based Violations

Water Source Types

GW
29 systems (64%)
SW
16 systems (36%)

PFAS Contamination

1
Systems Tested
1
PFAS Detected
100.0%
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

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

No violations on record (5) One or more violations (40)

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
Weaverville C.s.d. 3,975 6 Detected
Trinity Co. W.w. Dist #1 2,324 11 -
Trinity Center M.W.C. . 729 11 -
Lewiston Community Services District 677 84 -
Clark System 450 6 -
Hayward Flat Campground 440 0 -
Tannery Gulch Campground 410 4 -
Caltrans-Salyer Safety Rest Stop 400 2 -
Trinity Knolls Mutual Water Company 338 18 -
Trinity Village Mutual Water 332 11 -
Fawn & Stoney Campground 327 0 -
Trinity Lake Marinas, LLC. 317 8 -
Trinity Alps Resort 307 5 -
Fish Tail Inn 274 20 -
Ruth Lake Recreation Area 252 6 -
Salyer Mutual WC (Formerly Riverview Ac) 231 66 -
Pinewood Cove Resort 230 0 -
Pine Cove RV Park 223 16 -
Alpine View Campground 215 0 -
Ruth Lake Marina 202 2 -
Bridge Camp 190 2 -
Del Loma RV Park & Cg 157 11 -
Bar 717 Ranch 145 12 -
Treasure Creek Woods MWC 131 10 -
Salyer Heights W.S., Inc 130 36 -
Burnt Ranch School 125 11 -
Cal Fire-Trinity River Conservation Camp 120 6 -
Burnt Ranch Estates 115 11 -
Journey S End Resort 106 4 -
Rush Creek Mutual Water System 102 5 -
Ackerman Campground 100 2 -
So Trinity Unified School Dist. 100 10 -
Covington Mill MWC-Division B 99 15 -
Mary Smith Campground 90 0 -
Junction City School 80 18 -
Lakeview Terrace Resort 79 12 -
Redding Odd Fellows Camp 65 13 -
Mad River Compound - Usfs 61 7 -
Covington Mill - A 60 14 -
Indian Creek Trailer Park 43 31 -
Bucktail Mutual Water Company 42 23 -
Seymour's Mutual Water System 40 32 -
Bud Fine MWC 37 25 -
Flux River Resort 34 14 -
Southern Trinity Health Services, Inc. 30 1 -

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 Trinity County? ▼
Trinity County has 601 total drinking water violations across 45 water systems, of which 262 are health-based violations. 88.9% of systems have at least one violation.
How many people get water from Trinity County systems? ▼
Water systems in Trinity County serve approximately 14,934 people through 45 public water systems.
Has PFAS been detected in Trinity County water? ▼
Of 1 water systems tested for PFAS in Trinity County, 1 had PFAS detected (100.0% detection rate).
What types of water sources supply Trinity County? ▼
Water systems in Trinity County use GW (29 systems), SW (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. 43.6% of Trinity 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.