CITY REPORT WA

Liberty Lake, WA: 10 Violations - Home Safety 63/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Liberty Lake: C.

A mixed picture - some signals here are worth your attention.

Liberty Lake, WA: a C, mid-scale.

How Liberty Lake Compares

Liberty Lake63/100
Washington avg86/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
C · 63
Avg Safety Score
Zone 1
County Radon Potential (High)
$558K
Median Home Value
$500
Est. Remediation (0.1% of home value)

What You Should Know About Liberty Lake Water

  • Your city's water systems recorded 10 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0015 mg/L.
  • Homes built before 1986: 19% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 12.04.

Who Supplies Your Water in Liberty Lake

Federal records list 2 water systems tied to Liberty Lake, WA. Of those, 2 are the primary providers, meaning service conditions, rate structures, and compliance histories can differ depending on where a property sits.

Overview

We track home safety data for 1 ZIP code in Liberty Lake, Washington (population ~12,092), covering 2 community water systems serving approximately 35,720 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Liberty Lake: C (63/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Liberty Lake water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0015 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Nitrate Inorganic 8 1
Haloacetic Acids (HAA5) Disinfection Byproducts 6 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 6 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
99019 C 10 0 Liberty Lake Sewer & Water District

All ZIP Codes in Liberty Lake

  • 99019 [C] - 10 violations

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Health Outcomes in Liberty Lake

11.5%
Asthma (US: 9.8%)
10.2%
Diabetes (US: 10.4%)
17.5%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 11.5% ↑
Diabetes 10.2% ↓
Mental Health 17.5% ↑

Vertical line = national average. ■ Above national · ■ Below national

Top Contaminants in Liberty Lake Water

Nitrate 8 violations
Inorganic · EPA regulatory level for the contaminant named above: 10 mg/L
Blue baby syndrome in infants
Haloacetic Acids (HAA5) 6 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.06 mg/L
Increased cancer risk with long-term exposure above the MCL
Total Trihalomethanes (TTHM) 6 violations
Disinfection Byproducts · EPA regulatory level for the contaminant named above: 0.08 mg/L
Increased cancer risk with long-term exposure above the MCL

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Liberty Lake

1991
Median Build Year
19%
Built Before 1986
5%
Built Before 1970
Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Remodels change the picture: a 1991 median in Liberty Lake says nothing about pipes swapped out or repaired since construction.

1991
Median Year Built
19%
Pre-1986 (lead solder era; lead paint banned 1978)
5%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (5%) 1970–1986 (14%) Post-1986 (81%)

Most homes in Liberty Lake were built after 1986; lead exposure at a tap still depends on its service line and plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Liberty Lake Homeowners

How large is the remediation estimate next to home prices in Liberty Lake? Small in relative terms: it amounts to 1% of the median value or less, although the dollar figure below is still an estimate and actual costs vary by property and contractor.

Median Home Value
$558,100
Est. Remediation
$500
Remediation as % of home value 0.1%

Estimated remediation costs in Liberty Lake can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 19% above the Washington average.

Lead Exposure Risk for Children in Liberty Lake

19%
Homes Built Before 1986
0.0015
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

For families with young children in Liberty Lake, two area figures are available: pre-1986 construction at about 19%, and a mean of the ZIP codes' 90th-percentile lead results under 0.010 mg/L. Testing water from the tap a child drinks from gives a home-specific result.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Historical NFIP Claim Context in Liberty Lake

1
Total FEMA Flood Claims
$3,237
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Liberty Lake contains 1 flood insurance claim. Among claims with payment data, the average reported building, contents, and ICC component sum is $3,237. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

What You Can Do in Liberty Lake

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. For Nitrate, listed in the water-quality records for Liberty Lake: if it is a rule or reporting requirement rather than a contaminant, ask your utility what the record involved; for bacteria, follow any boil-water notice from your utility; for a specific chemical contaminant, check whether a filter is certified to reduce it. Not every contaminant has a consumer filter certification.
  3. Check your home's plumbing. Homes built before 1986 may have lead solder in pipes. A licensed plumber can assess your risk.

Deep Dive Reports

Detailed analysis for Liberty Lake, WA

Frequently Asked Questions

What does the Home Safety Score mean for Liberty Lake, WA?
Liberty Lake has an average Home Safety Score of 63/100 (Grade C) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 10 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Liberty Lake?
EPA records list 10 EPA violations for Liberty Lake water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Liberty Lake water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Liberty Lake is 0.0015 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Liberty Lake compare to Washington average?
Liberty Lake has an average Home Safety Score of 63/100, which is below the Washington state average of 86/100 for the same model series.
How many water systems serve Liberty Lake?
Our records map 2 water systems to 1 ZIP code in Liberty Lake. The related population figure in our data is approximately 12,092 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Liberty Lake?
Estimated remediation cost per household in Liberty Lake: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Liberty Lake, WA: 10 Violations - Home Safety 63/100. https://zipcheckup.com/cities/wa/liberty-lake/
BibTeX 
@misc{zipcheckup-cities-wa-liberty-lake,
  author = {{ZipCheckup}},
  title  = {{Liberty Lake, WA: 10 Violations - Home Safety 63/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/wa/liberty-lake/}
}

Page version: October 2026.

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