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LEAVENWORTH CITY OF

PWS ID: WA5346500 · Leavenworth, Washington 98826

LEAVENWORTH CITY OF serves 9,218 people in Leavenworth, Washington using Surface Water water sources. It has 68 recorded EPA violations, including 15 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LEAVENWORTH CITY OF

LEAVENWORTH CITY OF is a local-owned community water system that delivers drinking water to 9,218 residents in Leavenworth, Washington (Chelan County) through 1,407 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 68 total violations for this system , of which 15 (22%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 53 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 15 violations (TT, health-based). 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. LEAVENWORTH CITY OF's 68 violations sit below 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
9,218
Total Violations
68
Health-Based Violations
15
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,407
County
Chelan
School/Daycare
No
MCL Violations
0
Monitoring Violations
53
Treatment Tech Violations
15

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 15 1996
Diquat MR 5 2005
1,2,4-Trichlorobenzene MR 2 2007
cis-1,2-Dichloroethylene MR 2 2007
o-Dichlorobenzene MR 2 2007
p-Dichlorobenzene MR 2 2007
1,1-Dichloroethylene MR 2 2007
trans-1,2-Dichloroethylene MR 2 2007
1,2-Dichloroethane MR 2 2007
1,2-Dichloropropane MR 2 2007
Trichloroethylene MR 2 2007
Benzene MR 2 2007
TTHM MR 2 2015
Total Haloacetic Acids (HAA5) MR 2 2015
Surface Water Treatment Rule MR 2 1999
Vinyl chloride MR 2 2007
DICHLOROMETHANE MR 2 2007
Styrene MR 2 2007
Carbon tetrachloride MR 2 2007
CHLOROBENZENE MR 2 2007
Toluene MR 2 2007
Ethylbenzene MR 2 2007
Tetrachloroethylene MR 2 2007
1,1,2-Trichloroethane MR 2 2007
1,1,1-Trichloroethane MR 2 2007
Nitrate MR 1 2024
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 LEAVENWORTH CITY OF.

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 WA5346500 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 LEAVENWORTH CITY OF 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
2024 Nitrate MR 1 SDWIS / WA5346500 / 1040
2015 TTHM MR 2 SDWIS / WA5346500 / 2950
2015 Total Haloacetic Acids (HAA5) MR 2 SDWIS / WA5346500 / 2456
2007 1,2,4-Trichlorobenzene MR 2 SDWIS / WA5346500 / 2378
2007 cis-1,2-Dichloroethylene MR 2 SDWIS / WA5346500 / 2380
2007 o-Dichlorobenzene MR 2 SDWIS / WA5346500 / 2968
2007 p-Dichlorobenzene MR 2 SDWIS / WA5346500 / 2969
2007 1,1-Dichloroethylene MR 2 SDWIS / WA5346500 / 2977
2007 trans-1,2-Dichloroethylene MR 2 SDWIS / WA5346500 / 2979
2007 1,2-Dichloroethane MR 2 SDWIS / WA5346500 / 2980
2007 1,2-Dichloropropane MR 2 SDWIS / WA5346500 / 2983
2007 Trichloroethylene MR 2 SDWIS / WA5346500 / 2984
2007 Benzene MR 2 SDWIS / WA5346500 / 2990
2007 Vinyl chloride MR 2 SDWIS / WA5346500 / 2976
2007 DICHLOROMETHANE MR 2 SDWIS / WA5346500 / 2964

How LEAVENWORTH CITY OF Compares

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

Metric LEAVENWORTH CITY OF Washington avg Federal benchmark
Total violations 68 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 15 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 9,218 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 LEAVENWORTH CITY OF water safe to drink? ▼
LEAVENWORTH CITY OF (PWS ID: WA5346500) has 68 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 9,218 people using Surface Water sources.
How many people does LEAVENWORTH CITY OF serve? ▼
LEAVENWORTH CITY OF serves 9,218 people in Leavenworth, Washington. It is a Local-owned system using Surface Water water sources with 1,407 service connections.
What type of violations does LEAVENWORTH CITY OF have? ▼
LEAVENWORTH CITY OF has 68 total violations: 15 health-based violations (MCL exceedances or treatment failures), 53 monitoring/reporting violations, and 15 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LEAVENWORTH CITY OF water? ▼
No PFAS testing data is available for LEAVENWORTH CITY OF under the EPA's UCMR5 monitoring program.
What water source does LEAVENWORTH CITY OF use? ▼
LEAVENWORTH CITY OF 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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