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Non-Transient Non-Community Water System · PWS WA5308741

North River School Dist 200

Cosmopolis, Washington 98537 - drinking water served from groundwater sources to 86 people, tracked in EPA SDWIS and UCMR5.

86
People served
44
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 44 drinking-water violations at North River School Dist 200, 7% of them health-based - below the Washington per-system average.

44
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
86
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: North River School Dist 200

North River School Dist 200 is a local-owned non-transient non-community water system that delivers drinking water to 86 residents in Cosmopolis, Washington (Pacific County) through 6 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 44 total violations for this system , of which 3 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 39 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 12 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Washington, EPA tracks 4,557 public water systems serving 9,736,844 people, with 314,648 cumulative violations and 20,590 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%).

North River School Dist 200's 44 violations sit below the Washington average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
86
Total Violations
44
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
6
County
Pacific
School/Daycare
No
MCL Violations
3
Monitoring Violations
39
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 12 2021
Revised Total Coliform Rule MON 10 2025
Coliform (TCR) MR 8 2016
Nitrate MR 4 2022
Coliform (TCR) MCL 3 2000
2,4,5-TP MR 1 2014
Pentachlorophenol MR 1 2014
Picloram MR 1 2014
Dinoseb MR 1 2014
Dalapon MR 1 2014

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for North River School Dist 200.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID WA5308741 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Washington Drinking Water Authority

Washington State Department of Health, Office of Drinking Water is the primacy agency that licenses and inspects North River School Dist 200 under EPA-delegated authority.

Open WA regulator portal

Source: Washington State Department of Health, Office of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Revised Total Coliform Rule MON 10 SDWIS / WA5308741 / 8000
2022 Nitrate MR 4 SDWIS / WA5308741 / 1040
2021 Lead and Copper Rule MR 12 SDWIS / WA5308741 / 5000
2016 Coliform (TCR) MR 8 SDWIS / WA5308741 / 3100
2014 2,4,5-TP MR 1 SDWIS / WA5308741 / 2110
2014 Pentachlorophenol MR 1 SDWIS / WA5308741 / 2326
2014 Picloram MR 1 SDWIS / WA5308741 / 2040
2014 Dinoseb MR 1 SDWIS / WA5308741 / 2041
2014 Dalapon MR 1 SDWIS / WA5308741 / 2031
2000 Coliform (TCR) MCL 3 SDWIS / WA5308741 / 3100

How North River School Dist 200 Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric North River School Dist 200 Washington avg Federal benchmark
Total violations 44 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 4.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 39.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 86 2,137 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,557 regulated public water systems in Washington.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is North River School Dist 200 water safe to drink? ▼
North River School Dist 200 (PWS ID: WA5308741) has 44 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 86 people using Groundwater sources.
How many people does North River School Dist 200 serve? ▼
North River School Dist 200 serves 86 people in Cosmopolis, Washington. It is a Local-owned system using Groundwater water sources with 6 service connections.
What type of violations does North River School Dist 200 have? ▼
North River School Dist 200 has 44 total violations: 3 health-based violations (MCL exceedances or treatment failures), 39 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in North River School Dist 200 water? ▼
No PFAS testing data is available for North River School Dist 200 under the EPA's UCMR5 monitoring program.
What water source does North River School Dist 200 use? ▼
North River School Dist 200 uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

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 system's figures are rendered directly from 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.