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BOISTFORT VALLEY

PWS ID: WA5307610 · Adna, Washington 98522

BOISTFORT VALLEY serves 2,389 people in Adna, Washington using Surface Water water sources. It has 388 recorded EPA violations, including 9 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: BOISTFORT VALLEY

BOISTFORT VALLEY is a private-owned community water system that delivers drinking water to 2,389 residents in Adna, Washington (Lewis County) through 829 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 388 total violations for this system , of which 9 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 377 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 1,2,4-Trichlorobenzene, 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. BOISTFORT VALLEY's 388 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
2,389
Total Violations
388
Health-Based Violations
9
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
829
County
Lewis
School/Daycare
No
MCL Violations
0
Monitoring Violations
377
Treatment Tech Violations
9

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,2,4-Trichlorobenzene MR 18 2008
cis-1,2-Dichloroethylene MR 18 2008
p-Dichlorobenzene MR 18 2008
1,1-Dichloroethylene MR 18 2008
trans-1,2-Dichloroethylene MR 18 2008
1,2-Dichloroethane MR 18 2008
1,1,1-Trichloroethane MR 18 2008
Carbon tetrachloride MR 18 2008
Trichloroethylene MR 18 2008
1,1,2-Trichloroethane MR 18 2008
CHLOROBENZENE MR 18 2008
Toluene MR 18 2008
Ethylbenzene MR 18 2008
Styrene MR 18 2008
o-Dichlorobenzene MR 18 2008
Vinyl chloride MR 18 2008
1,2-Dichloropropane MR 18 2008
DICHLOROMETHANE MR 18 2008
Benzene MR 18 2008
Tetrachloroethylene MR 18 2008
Surface Water Treatment Rule TT 9 1994
Surface Water Treatment Rule MR 4 2018
Long Term 2 Enhanced Surface Water Treatment Rule MR 2 2018
Nitrate MR 2 2018
Consumer Confidence Rule Other 1 2014
Revised Total Coliform Rule MON 1 2019
Mercury MR 1 1979
Cadmium MR 1 1979
Arsenic MR 1 1979
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 BOISTFORT VALLEY.

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 WA5307610 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 BOISTFORT VALLEY 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 1 SDWIS / WA5307610 / 8000
2018 Surface Water Treatment Rule MR 4 SDWIS / WA5307610 / 0200
2018 Long Term 2 Enhanced Surface Water Treatment Rule MR 2 SDWIS / WA5307610 / 0800
2018 Nitrate MR 2 SDWIS / WA5307610 / 1040
2014 Consumer Confidence Rule Other 1 SDWIS / WA5307610 / 7000
2008 1,2,4-Trichlorobenzene MR 18 SDWIS / WA5307610 / 2378
2008 cis-1,2-Dichloroethylene MR 18 SDWIS / WA5307610 / 2380
2008 p-Dichlorobenzene MR 18 SDWIS / WA5307610 / 2969
2008 1,1-Dichloroethylene MR 18 SDWIS / WA5307610 / 2977
2008 trans-1,2-Dichloroethylene MR 18 SDWIS / WA5307610 / 2979
2008 1,2-Dichloroethane MR 18 SDWIS / WA5307610 / 2980
2008 1,1,1-Trichloroethane MR 18 SDWIS / WA5307610 / 2981
2008 Carbon tetrachloride MR 18 SDWIS / WA5307610 / 2982
2008 Trichloroethylene MR 18 SDWIS / WA5307610 / 2984
2008 1,1,2-Trichloroethane MR 18 SDWIS / WA5307610 / 2985

How BOISTFORT VALLEY Compares

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

Metric BOISTFORT VALLEY Washington avg Federal benchmark
Total violations 388 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 9 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 2,389 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 BOISTFORT VALLEY water safe to drink? ▼
BOISTFORT VALLEY (PWS ID: WA5307610) has 388 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,389 people using Surface Water sources.
How many people does BOISTFORT VALLEY serve? ▼
BOISTFORT VALLEY serves 2,389 people in Adna, Washington. It is a Private-owned system using Surface Water water sources with 829 service connections.
What type of violations does BOISTFORT VALLEY have? ▼
BOISTFORT VALLEY has 388 total violations: 9 health-based violations (MCL exceedances or treatment failures), 377 monitoring/reporting violations, and 9 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in BOISTFORT VALLEY water? ▼
No PFAS testing data is available for BOISTFORT VALLEY under the EPA's UCMR5 monitoring program.
What water source does BOISTFORT VALLEY use? ▼
BOISTFORT VALLEY uses Surface Water 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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