Knowlesville, NY Water Safety: 53/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Public water compliance in Knowlesville falls below the NY baseline — elevated violation rates are on record.
How Knowlesville Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Knowlesville Water
- Homes built before 1986: 76% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 13.54 — above typical levels.
Who Supplies Your Water in Knowlesville
One utility dominates residential water service in Knowlesville, NY — out of 1 system in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Knowlesville, New York (population ~61), covering 1 community water system serving approximately 6,500 people region-wide.
No EPA violations recorded across any ZIP codes in Knowlesville — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Knowlesville: D (53/100)
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
Knowlesville water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Knowlesville
- 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 |
|---|---|---|---|
| 14479 | D | MEDINA VILLAGE | 6,500 |
All ZIP Codes in Knowlesville
- 14479 [D]
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 Knowlesville
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 Knowlesville
With 76% 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
The lead that enters tap water in older homes often comes not from the municipal supply but from the home's own plumbing — from solder used in copper joints before the 1986 federal ban, or from lead pipes installed before 1970. In Knowlesville, where the median build year is 1901, these older materials are widespread. More than half the residential stock predates the 1986 solder ban, and a significant fraction predates 1970 as well. For residents in those homes, the city-wide water quality picture is a less relevant frame than the specific materials inside their own walls and under their own street.
Over half of homes in Knowlesville 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.
Lead Exposure Risk for Children in Knowlesville
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.
Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 76% of Knowlesville stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Knowlesville
- 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. With 76% of homes built before 1986, lead solder is a real possibility.
- Review your water system's CCR. Your utility publishes an annual Consumer Confidence Report with detailed test results. Request it or find it online.
Deep Dive Reports
Detailed analysis for Knowlesville, NY