PlainWater
States → Washington

Community Water System · PWS WA5375893

Sandwood Heights Subdivision

Woodland, Washington 98674 - drinking water served from groundwater sources to 126 people, tracked in EPA SDWIS and UCMR5.

126
People served
189
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 189 drinking-water violations at Sandwood Heights Subdivision - above the Washington per-system average.

189
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
126
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Sandwood Heights Subdivision

Sandwood Heights Subdivision is a private-owned community water system that delivers drinking water to 126 residents in Woodland, Washington (Cowlitz County) through 41 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 189 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 187 monitoring and reporting violations are on file. The most recent violation on record dates to 2019.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 22 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%).

Sandwood Heights Subdivision's 189 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
126
Total Violations
189
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
41
County
Cowlitz
School/Daycare
No
MCL Violations
0
Monitoring Violations
187
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 22 2005
cis-1,2-Dichloroethylene MR 8 2005
DICHLOROMETHANE MR 8 2005
p-Dichlorobenzene MR 8 2005
trans-1,2-Dichloroethylene MR 8 2005
1,2-Dichloroethane MR 8 2005
1,1,1-Trichloroethane MR 8 2005
1,2-Dichloropropane MR 8 2005
Trichloroethylene MR 8 2005
Tetrachloroethylene MR 8 2005
Ethylbenzene MR 8 2005
Styrene MR 8 2005
1,2,4-Trichlorobenzene MR 8 2005
o-Dichlorobenzene MR 8 2005
1,1-Dichloroethylene MR 8 2005
Carbon tetrachloride MR 8 2005
Toluene MR 8 2005
1,1,2-Trichloroethane MR 8 2005
Benzene MR 8 2005
CHLOROBENZENE MR 8 2005
Vinyl chloride MR 8 2005
Consumer Confidence Rule Other 2 2014
Coliform (TCR) MR 2 2012
Revised Total Coliform Rule MON 2 2019
Gross Alpha, Excl. Radon and U MR 1 1979

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 Sandwood Heights Subdivision.

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 WA5375893 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 Sandwood Heights Subdivision 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
2019 Revised Total Coliform Rule MON 2 SDWIS / WA5375893 / 8000
2014 Consumer Confidence Rule Other 2 SDWIS / WA5375893 / 7000
2012 Coliform (TCR) MR 2 SDWIS / WA5375893 / 3100
2005 Lead and Copper Rule MR 22 SDWIS / WA5375893 / 5000
2005 cis-1,2-Dichloroethylene MR 8 SDWIS / WA5375893 / 2380
2005 DICHLOROMETHANE MR 8 SDWIS / WA5375893 / 2964
2005 p-Dichlorobenzene MR 8 SDWIS / WA5375893 / 2969
2005 trans-1,2-Dichloroethylene MR 8 SDWIS / WA5375893 / 2979
2005 1,2-Dichloroethane MR 8 SDWIS / WA5375893 / 2980
2005 1,1,1-Trichloroethane MR 8 SDWIS / WA5375893 / 2981
2005 1,2-Dichloropropane MR 8 SDWIS / WA5375893 / 2983
2005 Trichloroethylene MR 8 SDWIS / WA5375893 / 2984
2005 Tetrachloroethylene MR 8 SDWIS / WA5375893 / 2987
2005 Ethylbenzene MR 8 SDWIS / WA5375893 / 2992
2005 Styrene MR 8 SDWIS / WA5375893 / 2996

How Sandwood Heights Subdivision Compares

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

Metric Sandwood Heights Subdivision Washington avg Federal benchmark
Total violations 189 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 126 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 Sandwood Heights Subdivision water safe to drink? ▼
Sandwood Heights Subdivision (PWS ID: WA5375893) has 189 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 126 people using Groundwater sources.
How many people does Sandwood Heights Subdivision serve? ▼
Sandwood Heights Subdivision serves 126 people in Woodland, Washington. It is a Private-owned system using Groundwater water sources with 41 service connections.
What type of violations does Sandwood Heights Subdivision have? ▼
Sandwood Heights Subdivision has 189 total violations: 0 health-based violations (MCL exceedances or treatment failures), 187 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Sandwood Heights Subdivision water? ▼
No PFAS testing data is available for Sandwood Heights Subdivision under the EPA's UCMR5 monitoring program.
What water source does Sandwood Heights Subdivision use? ▼
Sandwood Heights Subdivision 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.