Lewiston, ME: High Radon Risk - Home Safety 67/100
3 ZIP codes · 1 water system · Updated
ZipCheckup grade for Lewiston: C.
A mixed picture - some signals here are worth your attention.
Across water systems in Lewiston, safety results are uneven - a portion carry active or recent violations, while others meet federal standards without incident, placing the city in the middle tier for ME.
How Lewiston Compares
Data: EPA SDWIS
What You Should Know About Lewiston Water
- Average lead level: 0.0023 mg/L.
- Estimated remediation: $2,600 per household.
- CDC health risk index: 13.83 - above typical levels.
Who Supplies Your Water in Lewiston
Federal records list 1 water system serving Lewiston, ME. One provider accounts for the large majority of residential water connections in the area, concentrating infrastructure and compliance accountability.
- C
Overview
We track home safety data for 3 ZIP codes in Lewiston, Maine, covering 1 community water system serving approximately 37,886 people. The EPA snapshots used for this build directly map water systems to 1 of 3 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for Lewiston: C (67/100)
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
Lewiston water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0023 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
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 3 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 04240 | C | Lewiston Water & Sewer Division | 23,720 |
All ZIP Codes in Lewiston
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Health Outcomes in Lewiston
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
Cost Context: What Remediation Means for Lewiston Homeowners
Middle of the range - Lewiston homeowners face a remediation share that calls for real financial attention without reaching crisis territory.
Remediation costs are moderate relative to home values in Lewiston. The estimated $1,733–$3,533 range is manageable for most homeowners but still worth budgeting for. Home values are 18% below the Maine average.
Lead Exposure Risk for Children in Lewiston
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.
Lead risk in Lewiston appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical NFIP Claim Context in Lewiston
Historical NFIP data for Lewiston contains 33 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $9,997. Among ZIP codes with claim records, 67% 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 <strong>$2,600</strong> 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 Lewiston
- Test your water at home. City-level data shows averages - your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- 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 Lewiston, ME