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HARMONY PARK LOT OWNERS

PWS ID: WA5331362 · Napavine, Washington 98565

HARMONY PARK LOT OWNERS serves 81 people in Napavine, Washington using Groundwater water sources. It has 1,266 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: HARMONY PARK LOT OWNERS

HARMONY PARK LOT OWNERS is a private-owned community water system that delivers drinking water to 81 residents in Napavine, Washington (Lewis County) through 78 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 1,266 total violations for this system , of which 4 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 1,255 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 49 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. HARMONY PARK LOT OWNERS's 1,266 violations sit above the Washington average. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%). 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
81
Total Violations
1,266
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
78
County
Lewis
School/Daycare
No
MCL Violations
4
Monitoring Violations
1,255
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
DICHLOROMETHANE MR 49 2011
o-Dichlorobenzene MR 49 2011
p-Dichlorobenzene MR 49 2011
Vinyl chloride MR 49 2011
1,1-Dichloroethylene MR 49 2011
1,1,1-Trichloroethane MR 49 2011
Trichloroethylene MR 49 2011
1,1,2-Trichloroethane MR 49 2011
Tetrachloroethylene MR 49 2011
Benzene MR 49 2011
Toluene MR 49 2011
Ethylbenzene MR 49 2011
Styrene MR 49 2011
1,2,4-Trichlorobenzene MR 49 2011
cis-1,2-Dichloroethylene MR 49 2011
1,2-Dichloroethane MR 49 2011
Carbon tetrachloride MR 49 2011
CHLOROBENZENE MR 49 2011
1,2-Dichloropropane MR 49 2011
trans-1,2-Dichloroethylene MR 49 2011
Nitrate MR 44 2020
Lead and Copper Rule MR 12 2013
OXAMYL MR 10 2005
Aldicarb sulfoxide MR 10 2005
Aldicarb sulfone MR 10 2005
Carbofuran MR 10 2005
Aldicarb MR 10 2005
Endrin MR 6 2005
Toxaphene MR 6 2005
Di(2-ethylhexyl) adipate MR 6 2005

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 HARMONY PARK LOT OWNERS.

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 WA5331362 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 HARMONY PARK LOT OWNERS 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 Nitrate MR 44 SDWIS / WA5331362 / 1040
2014 Coliform (TCR) MR 6 SDWIS / WA5331362 / 3100
2013 Lead and Copper Rule MR 12 SDWIS / WA5331362 / 5000
2011 DICHLOROMETHANE MR 49 SDWIS / WA5331362 / 2964
2011 o-Dichlorobenzene MR 49 SDWIS / WA5331362 / 2968
2011 p-Dichlorobenzene MR 49 SDWIS / WA5331362 / 2969
2011 Vinyl chloride MR 49 SDWIS / WA5331362 / 2976
2011 1,1-Dichloroethylene MR 49 SDWIS / WA5331362 / 2977
2011 1,1,1-Trichloroethane MR 49 SDWIS / WA5331362 / 2981
2011 Trichloroethylene MR 49 SDWIS / WA5331362 / 2984
2011 1,1,2-Trichloroethane MR 49 SDWIS / WA5331362 / 2985
2011 Tetrachloroethylene MR 49 SDWIS / WA5331362 / 2987
2011 Benzene MR 49 SDWIS / WA5331362 / 2990
2011 Toluene MR 49 SDWIS / WA5331362 / 2991
2011 Ethylbenzene MR 49 SDWIS / WA5331362 / 2992

How HARMONY PARK LOT OWNERS Compares

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

Metric HARMONY PARK LOT OWNERS Washington avg Federal benchmark
Total violations 1,266 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 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 81 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
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is HARMONY PARK LOT OWNERS water safe to drink? ▼
HARMONY PARK LOT OWNERS (PWS ID: WA5331362) has 1266 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 81 people using Groundwater sources.
How many people does HARMONY PARK LOT OWNERS serve? ▼
HARMONY PARK LOT OWNERS serves 81 people in Napavine, Washington. It is a Private-owned system using Groundwater water sources with 78 service connections.
What type of violations does HARMONY PARK LOT OWNERS have? ▼
HARMONY PARK LOT OWNERS has 1,266 total violations: 4 health-based violations (MCL exceedances or treatment failures), 1,255 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in HARMONY PARK LOT OWNERS water? ▼
No PFAS testing data is available for HARMONY PARK LOT OWNERS under the EPA's UCMR5 monitoring program.
What water source does HARMONY PARK LOT OWNERS use? ▼
HARMONY PARK LOT OWNERS 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.

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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.

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