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Community Water System · PWS WA5303943

Owl Creek

Woodland, Washington 98674 - drinking water served from groundwater sources to 102 people, tracked in EPA SDWIS and UCMR5.

102
People served
476
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 476 drinking-water violations at Owl Creek - above the Washington per-system average.

476
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
102
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Owl Creek

Owl Creek is a private-owned community water system that delivers drinking water to 102 residents in Woodland, Washington (Cowlitz County) through 40 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 476 total violations for this system , of which 1 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 473 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is DICHLOROMETHANE, recorded in 18 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%).

Owl Creek's 476 violations sit above 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
102
Total Violations
476
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
40
County
Cowlitz
School/Daycare
No
MCL Violations
1
Monitoring Violations
473
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
DICHLOROMETHANE MR 18 2006
1,1-Dichloroethylene MR 18 2006
trans-1,2-Dichloroethylene MR 18 2006
1,1,1-Trichloroethane MR 18 2006
Carbon tetrachloride MR 18 2006
1,2-Dichloropropane MR 18 2006
Benzene MR 18 2006
Toluene MR 18 2006
Vinyl chloride MR 18 2006
1,2-Dichloroethane MR 18 2006
Trichloroethylene MR 18 2006
CHLOROBENZENE MR 18 2006
1,2,4-Trichlorobenzene MR 18 2006
o-Dichlorobenzene MR 18 2006
p-Dichlorobenzene MR 18 2006
Tetrachloroethylene MR 18 2006
Styrene MR 18 2006
cis-1,2-Dichloroethylene MR 18 2006
1,1,2-Trichloroethane MR 18 2006
Ethylbenzene MR 18 2006
Nitrate MR 13 2017
Diquat MR 12 2007
Pentachlorophenol MR 6 2006
Endrin MR 3 2006
BHC-GAMMA MR 3 2006
Methoxychlor MR 3 2006
Toxaphene MR 3 2006
Di(2-ethylhexyl) phthalate MR 3 2006
Hexachlorocyclopentadiene MR 3 2006
Atrazine MR 3 2006

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 Owl Creek.

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 WA5303943 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 Owl Creek 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
2020 Revised Total Coliform Rule MON 1 SDWIS / WA5303943 / 8000
2017 Nitrate MR 13 SDWIS / WA5303943 / 1040
2007 Diquat MR 12 SDWIS / WA5303943 / 2032
2006 DICHLOROMETHANE MR 18 SDWIS / WA5303943 / 2964
2006 1,1-Dichloroethylene MR 18 SDWIS / WA5303943 / 2977
2006 trans-1,2-Dichloroethylene MR 18 SDWIS / WA5303943 / 2979
2006 1,1,1-Trichloroethane MR 18 SDWIS / WA5303943 / 2981
2006 Carbon tetrachloride MR 18 SDWIS / WA5303943 / 2982
2006 1,2-Dichloropropane MR 18 SDWIS / WA5303943 / 2983
2006 Benzene MR 18 SDWIS / WA5303943 / 2990
2006 Toluene MR 18 SDWIS / WA5303943 / 2991
2006 Vinyl chloride MR 18 SDWIS / WA5303943 / 2976
2006 1,2-Dichloroethane MR 18 SDWIS / WA5303943 / 2980
2006 Trichloroethylene MR 18 SDWIS / WA5303943 / 2984
2006 CHLOROBENZENE MR 18 SDWIS / WA5303943 / 2989

How Owl Creek Compares

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

Metric Owl Creek Washington avg Federal benchmark
Total violations 476 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 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 102 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 Owl Creek water safe to drink? ▼
Owl Creek (PWS ID: WA5303943) has 476 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 102 people using Groundwater sources.
How many people does Owl Creek serve? ▼
Owl Creek serves 102 people in Woodland, Washington. It is a Private-owned system using Groundwater water sources with 40 service connections.
What type of violations does Owl Creek have? ▼
Owl Creek has 476 total violations: 1 health-based violations (MCL exceedances or treatment failures), 473 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Owl Creek water? ▼
No PFAS testing data is available for Owl Creek under the EPA's UCMR5 monitoring program.
What water source does Owl Creek use? ▼
Owl Creek uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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.