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County 10009 County, 10

Water Systems
11
Population Served
9,972
Total Violations
1,994
43 health-based
PFAS Detected
0
of 1 tested

Violation Analysis

100.0%
Systems with Violations
181.3
Avg Violations per System
2.2%
Health-Based Violations

Water Source Types

GW
10 systems (91%)
SW
1 system (9%)

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 10009 10 water systems by violation status, EPA SDWIS records.

No violations on record (0) One or more violations (11)

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
MT. VISTA - DUNGENESS GOLF COURSE 3,200 25 Clean
BLYN - 7 CEDARS CONSOLIDATED 2,630 198 —
MAKAH NEAH BAY 1,300 783 —
DUNGENESS RIVER NATURE CENTER 1,000 4 —
PLUMMER TRIBAL COMMUNITY 515 277 —
LOWER ELWHA VALLEY 511 76 —
DESMET 355 123 —
ELWHA HEIGHTS 216 69 —
101 BUILDING QUILEUTE 150 11 —
COEUR D'ALENE SUB-AGENCY 50 399 —
BEACH 45 29 —

Other Counties in 10

County 10061 County
12 systems · 44,469 served · 1,960 violations
County 10077 County
35 systems · 12,671 served · 5,257 violations
County 10033 County
2 systems · 6,050 served · 178 violations
County 10067 County
5 systems · 5,920 served · 1,750 violations
County 10019 County
11 systems · 5,280 served · 3,295 violations
County 10045 County
4 systems · 5,189 served · 825 violations

Drinking Water Guides

Is Your Tap Water Safe?

How to interpret water quality reports and know when to take action.
PFAS: What You Need to Know

Health risks, EPA standards, and how to reduce PFAS exposure.
Check Your Water System

Step-by-step guide to finding and understanding your local water data.

Related Environmental Data

PlainEnviro
EPA toxic releases and pollution sources near water systems
PlainHealth
Cross-portal: mortality and health outcome data by state
PlainHazard
Natural disaster data affecting water infrastructure
PlainClimate
Climate and weather patterns impacting water supply

Frequently Asked Questions

How many water violations are in County 10009 County? ▼
County 10009 County has 1,994 total drinking water violations across 11 water systems, of which 43 are health-based violations. 100.0% of systems have at least one violation.
How many people get water from County 10009 County systems? ▼
Water systems in County 10009 County serve approximately 9,972 people through 11 public water systems.
Has PFAS been detected in County 10009 County water? ▼
Of 1 water systems tested for PFAS in County 10009 County, 0 had PFAS detected (0.0% detection rate).
What types of water sources supply County 10009 County? ▼
Water systems in County 10009 County use GW (10 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. 2.2% of County 10009 County's violations are health-based. Not all violations indicate immediate health risk, but they require corrective action.
Where does this water quality data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and UCMR5 PFAS monitoring program. SDWIS tracks violations for all public water systems regulated under the Safe Drinking Water Act.

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.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial