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LIBERTY LAKE SEWER & WATER DISTRICT

PWS ID: WA5347150 · Liberty Lake, Washington 99019

LIBERTY LAKE SEWER & WATER DISTRICT serves 14,212 people in Liberty Lake, Washington using Groundwater water sources. It has 27 recorded EPA violations, including 4 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: LIBERTY LAKE SEWER & WATER DISTRICT

LIBERTY LAKE SEWER & WATER DISTRICT is a local-owned community water system that delivers drinking water to 14,212 residents in Liberty Lake, Washington (Spokane County) through 5,424 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 27 total violations for this system , of which 4 (15%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 23 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 Coliform (TCR), recorded in 4 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 0.0032 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. LIBERTY LAKE SEWER & WATER DISTRICT's 27 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.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
14,212
Total Violations
27
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,424
County
Spokane
School/Daycare
No
MCL Violations
4
Monitoring Violations
23
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 4 2000
Cadmium MR 2 2008
Chromium MR 2 2008
Mercury MR 2 2008
Selenium MR 2 2008
Barium MR 2 2008
Fluoride MR 2 2008
Arsenic MR 2 2008
CYANIDE MR 1 2008
Nickel MR 1 2008
Antimony, Total MR 1 2008
Coliform (TCR) MR 1 1996
Nitrate MR 1 1979
Gross Alpha, Excl. Radon and U MR 1 1979
Lead and Copper Rule MR 1 2000
Thallium, Total MR 1 2008
Beryllium, Total MR 1 2008

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFEESA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/15/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFTrDA 5/15/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 5/15/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFPeS 5/15/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/15/2025 <0.002 µg/L 0.002 µg/L Not Detected
lithium 5/15/2025 <9 µg/L 9 µg/L Not Detected
ADONA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 5/15/2025 <0.008 µg/L 0.008 µg/L Not Detected
6:2 FTS 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFOS 5/15/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 5/15/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFBS 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/15/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFMBA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 5/15/2025 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/15/2025 <0.004 µg/L 0.004 µg/L Not Detected
lithium 5/15/2025 <9 µg/L 9 µg/L Not Detected
6:2 FTS 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/15/2025 0.0032 µg/L 0.003 µg/L Detected
PFNA 5/15/2025 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 5/15/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 5/15/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/15/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/15/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/15/2025 <0.003 µg/L 0.003 µg/L Not Detected

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 LIBERTY LAKE SEWER & WATER DISTRICT.

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 WA5347150 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 LIBERTY LAKE SEWER & WATER DISTRICT 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 Cadmium MR 2 SDWIS / WA5347150 / 1015
2008 Chromium MR 2 SDWIS / WA5347150 / 1020
2008 Mercury MR 2 SDWIS / WA5347150 / 1035
2008 Selenium MR 2 SDWIS / WA5347150 / 1045
2008 Barium MR 2 SDWIS / WA5347150 / 1010
2008 Fluoride MR 2 SDWIS / WA5347150 / 1025
2008 Arsenic MR 2 SDWIS / WA5347150 / 1005
2008 CYANIDE MR 1 SDWIS / WA5347150 / 1024
2008 Nickel MR 1 SDWIS / WA5347150 / 1036
2008 Antimony, Total MR 1 SDWIS / WA5347150 / 1074
2008 Thallium, Total MR 1 SDWIS / WA5347150 / 1085
2008 Beryllium, Total MR 1 SDWIS / WA5347150 / 1075
2000 Coliform (TCR) MCL 4 SDWIS / WA5347150 / 3100
2000 Lead and Copper Rule MR 1 SDWIS / WA5347150 / 5000
1996 Coliform (TCR) MR 1 SDWIS / WA5347150 / 3100

How LIBERTY LAKE SEWER & WATER DISTRICT Compares

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

Metric LIBERTY LAKE SEWER & WATER DISTRICT Washington avg Federal benchmark
Total violations 27 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 1 compound 39.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 14,212 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 LIBERTY LAKE SEWER & WATER DISTRICT water safe to drink? ▼
LIBERTY LAKE SEWER & WATER DISTRICT (PWS ID: WA5347150) has 27 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 14,212 people using Groundwater sources.
How many people does LIBERTY LAKE SEWER & WATER DISTRICT serve? ▼
LIBERTY LAKE SEWER & WATER DISTRICT serves 14,212 people in Liberty Lake, Washington. It is a Local-owned system using Groundwater water sources with 5,424 service connections.
What type of violations does LIBERTY LAKE SEWER & WATER DISTRICT have? ▼
LIBERTY LAKE SEWER & WATER DISTRICT has 27 total violations: 4 health-based violations (MCL exceedances or treatment failures), 23 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LIBERTY LAKE SEWER & WATER DISTRICT water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in LIBERTY LAKE SEWER & WATER DISTRICT's water supply: PFBS. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does LIBERTY LAKE SEWER & WATER DISTRICT use? ▼
LIBERTY LAKE SEWER & WATER DISTRICT 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. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial