Moses Lake, WA: 16 Violations — 72/100 (2026)
1 ZIP code · 7 water systems · Updated 2026-06-03
Water systems in Moses Lake, WA serve households with few reported safety events.
How Moses Lake Compares
Data: EPA SDWIS Last verified: 2026-06-03
Key Facts for Moses Lake Residents
- Your city's water systems recorded 16 violations in the past 5 years.
- Average lead level: 0.0032 mg/L.
- Homes built before 1986: 48% — older plumbing may contain lead solder.
- Estimated remediation: $1,000 per household.
- CDC health risk index: 12.63 — above typical levels.
Moses Lake's Water Providers
In Moses Lake, WA, residential water supply is distributed across multiple utilities rather than concentrated in one. The 3 leading providers out of 7 tracked systems each control their own infrastructure, file separate EPA compliance reports, and set independent rate schedules.
Overview
We track water quality and home safety data for 1 ZIP code in Moses Lake, Washington, covering 7 community water systems serving approximately 47,399 people.
1 of 1 ZIP code (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Moses Lake: B (72/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Moses Lake water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0032 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Consumer Confidence Report Rule | Reporting | 14 | 1 |
| Total Organic Carbon | Disinfection Byproducts | 8 | 1 |
| Lead | Inorganic | 4 | 1 |
| Surface Water Treatment Rule | Treatment Technique | 4 | 1 |
| Nickel | Inorganic | 2 | 1 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 98837 | B | 16 | 0 | City of Moses Lake |
All ZIP Codes in Moses Lake
- 98837 [B] — 16 violations
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
Moses Lake Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Moses Lake's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Moses Lake Infrastructure Age
With 48% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Some cities skew heavily toward one construction era; Moses Lake does not. The median build year of 1982 reflects a housing stock where older and newer homes share the market in meaningful proportions. That mixed profile means the city carries moderate aggregate plumbing-era risk — with older homes, particularly those built before 1986, representing the portion of the stock where lead-soldered joints may still be present.
Most homes in Moses Lake were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Moses Lake
When remediation costs are measured against Moses Lake home values, the resulting ratio is in the low tier — addressing documented water and safety issues here claims only a minor fraction of typical equity, and most homeowners are in a position where the financial commitment is straightforward rather than a material burden on their household budget.
Remediation costs in Moses Lake are relatively low compared to home values. The $400–$1,600 estimated range is a small fraction of median property value. Home values are 38% below the Washington average.
Moses Lake: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Pulling a tap sample fills the gap that utility data cannot close, particularly here where 48% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Moses Lake.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Moses Lake, WA