Lewiston, NY Water Safety: 80/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
In current NY EPA data, Lewiston's tap water sits in the high-safety tier.
How Lewiston Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Lewiston Water
- Average lead level: 0.006 mg/L.
- Homes built before 1986: 73% — older plumbing may contain lead solder.
- Estimated remediation: $900 per household.
- CDC health risk index: 13.71 — above typical levels.
Who Supplies Your Water in Lewiston
Residential addresses in Lewiston, NY are served by 2 primary water providers out of 2 systems in federal records. Each system maintains separate infrastructure and files its own EPA compliance reports, so service conditions are not uniform across the city.
Overview
We track water quality and home safety data for 1 ZIP code in Lewiston, New York (population ~10,318), covering 2 community water systems serving approximately 19,038 people region-wide.
No EPA violations recorded across any ZIP codes in Lewiston — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Lewiston: B (80/100)
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
Lewiston water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0060 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.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 14092 | B | Lewiston Water Improvementarea | 16,257 |
All ZIP Codes in Lewiston
- 14092 [B]
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.
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
Housing & Infrastructure in Lewiston
With 73% 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
Lewiston's housing stock is predominantly older, with a median build year of 1960 that reflects decades of construction before federal plumbing standards were tightened. The 1986 ban on lead solder and the pre-1970 era of lead service lines are both relevant benchmarks here — a significant share of the residential inventory predates one or both of those cutoffs, creating an elevated baseline for plumbing-related lead risk that aggregate water quality data may not fully reflect at the household level.
Over half of homes in Lewiston were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Lewiston Homeowners
In Lewiston, property values comfortably outpace what documented remediation typically costs — the equity share is proportionally low.
Remediation costs in Lewiston are relatively low compared to home values. The $300–$1,600 estimated range is a small fraction of median property value. Home values are 32% below the New York 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.
Before the federal solder ban, lead solder was a routine plumbing material, and 73% of the Lewiston inventory was built in that earlier era — a share large enough to move household-level reads onto the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Lewiston, NY