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County 09023 County, 09

Water Systems
8
Population Served
4,233
Total Violations
2,869
144 health-based
PFAS Detected
0
of 1 tested

Violation Analysis

100.0%
Systems with Violations
358.6
Avg Violations per System
5.0%
Health-Based Violations

Water Source Types

SW
5 systems (63%)
GW
3 systems (38%)

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

County 09023 09 water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (8)

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
Hoopa Valley-Wide System 3,500 209 Clean
Yurok - Requa 215 358 -
Duckwater 166 225 -
Yurok - Weitchpec 120 622 -
Yurok - Wautec 96 525 -
Yurok - Kepel 76 561 -
Yurok - McCoy - Kenek 30 117 -
Yomba Indian Reservation 30 252 -

Other Counties in 09

County 09013 County
23 systems · 114,768 served · 2,232 violations
County 09017 County
18 systems · 47,180 served · 4,330 violations
County 09073 County
10 systems · 41,233 served · 1,205 violations
County 09019 County
29 systems · 26,556 served · 2,067 violations
County 09031 County
23 systems · 19,530 served · 2,193 violations
County 09061 County
1 systems · 18,007 served · 10 violations

Drinking Water Guides

Frequently Asked Questions

How many water violations are in County 09023 County? ▼
County 09023 County has 2,869 total drinking water violations across 8 water systems, of which 144 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from County 09023 County systems? ▼
Water systems in County 09023 County serve approximately 4,233 people through 8 public water systems.
Has PFAS been detected in County 09023 County water? ▼
Of 1 water systems tested for PFAS in County 09023 County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply County 09023 County? ▼
Water systems in County 09023 County use SW (5 systems), GW (3 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. 5.0% of County 09023 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.