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STEVENS CO PUD - DOLOMITE

PWS ID: WA5329808 · Loon Lake, Washington 99148

STEVENS CO PUD - DOLOMITE serves 60 people in Loon Lake, Washington using Groundwater water sources. It has 778 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: STEVENS CO PUD - DOLOMITE

STEVENS CO PUD - DOLOMITE is a local-owned community water system that delivers drinking water to 60 residents in Loon Lake, Washington (Stevens County) through 21 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 778 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 778 monitoring and reporting violations are on file. The most recent violation on record dates to 2008.

The most frequently cited contaminant at this system is 1,2,4-Trichlorobenzene, recorded in 25 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. STEVENS CO PUD - DOLOMITE's 778 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
60
Total Violations
778
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
21
County
Stevens
School/Daycare
No
MCL Violations
0
Monitoring Violations
778
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
1,2,4-Trichlorobenzene MR 25 2006
cis-1,2-Dichloroethylene MR 25 2006
DICHLOROMETHANE MR 25 2006
p-Dichlorobenzene MR 25 2006
1,1-Dichloroethylene MR 25 2006
Carbon tetrachloride MR 25 2006
1,2-Dichloropropane MR 25 2006
Tetrachloroethylene MR 25 2006
CHLOROBENZENE MR 25 2006
Toluene MR 25 2006
Ethylbenzene MR 25 2006
Styrene MR 25 2006
Vinyl chloride MR 25 2006
trans-1,2-Dichloroethylene MR 25 2006
1,2-Dichloroethane MR 25 2006
Trichloroethylene MR 25 2006
1,1,2-Trichloroethane MR 25 2006
Benzene MR 25 2006
o-Dichlorobenzene MR 25 2006
1,1,1-Trichloroethane MR 25 2006
Endrin MR 16 2008
BHC-GAMMA MR 16 2008
Methoxychlor MR 16 2008
Toxaphene MR 16 2008
Simazine MR 16 2008
Hexachlorocyclopentadiene MR 16 2008
LASSO MR 16 2008
Heptachlor MR 16 2008
Benzo(a)pyrene MR 16 2008
Di(2-ethylhexyl) phthalate MR 16 2008

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 STEVENS CO PUD - DOLOMITE.

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 WA5329808 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 STEVENS CO PUD - DOLOMITE 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
2008 Endrin MR 16 SDWIS / WA5329808 / 2005
2008 BHC-GAMMA MR 16 SDWIS / WA5329808 / 2010
2008 Methoxychlor MR 16 SDWIS / WA5329808 / 2015
2008 Toxaphene MR 16 SDWIS / WA5329808 / 2020
2008 Simazine MR 16 SDWIS / WA5329808 / 2037
2008 Hexachlorocyclopentadiene MR 16 SDWIS / WA5329808 / 2042
2008 LASSO MR 16 SDWIS / WA5329808 / 2051
2008 Heptachlor MR 16 SDWIS / WA5329808 / 2065
2008 Benzo(a)pyrene MR 16 SDWIS / WA5329808 / 2306
2008 Di(2-ethylhexyl) phthalate MR 16 SDWIS / WA5329808 / 2039
2008 HEXACHLOROBENZENE MR 16 SDWIS / WA5329808 / 2274
2008 Chlordane MR 16 SDWIS / WA5329808 / 2959
2008 Atrazine MR 16 SDWIS / WA5329808 / 2050
2008 Di(2-ethylhexyl) adipate MR 16 SDWIS / WA5329808 / 2035
2008 Heptachlor epoxide MR 14 SDWIS / WA5329808 / 2067

How STEVENS CO PUD - DOLOMITE Compares

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

Metric STEVENS CO PUD - DOLOMITE Washington avg Federal benchmark
Total violations 778 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 60 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 STEVENS CO PUD - DOLOMITE water safe to drink? ▼
STEVENS CO PUD - DOLOMITE (PWS ID: WA5329808) has 778 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 60 people using Groundwater sources.
How many people does STEVENS CO PUD - DOLOMITE serve? ▼
STEVENS CO PUD - DOLOMITE serves 60 people in Loon Lake, Washington. It is a Local-owned system using Groundwater water sources with 21 service connections.
What type of violations does STEVENS CO PUD - DOLOMITE have? ▼
STEVENS CO PUD - DOLOMITE has 778 total violations: 0 health-based violations (MCL exceedances or treatment failures), 778 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in STEVENS CO PUD - DOLOMITE water? ▼
No PFAS testing data is available for STEVENS CO PUD - DOLOMITE under the EPA's UCMR5 monitoring program.
What water source does STEVENS CO PUD - DOLOMITE use? ▼
STEVENS CO PUD - DOLOMITE 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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