Farmington, KY Water Safety: 53/100 (2026)
1 ZIP code · 3 water systems · Updated 2026-06-03
Farmington ranks below average for tap water safety in KY — health-based violations are documented across multiple service areas in recent EPA monitoring data.
How Farmington Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Farmington Water
- Homes built before 1986: 71% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
Who Supplies Your Water in Farmington
3 independent water providers serve Farmington, KY — 3 systems appear in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Farmington, Kentucky (population ~983), covering 3 community water systems serving approximately 35,393 people region-wide.
No EPA violations recorded across any ZIP codes in Farmington — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Farmington: 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
Farmington water systems draw from: Surface water.
Lead & Copper
- Lead data: not yet available for Farmington
- 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 |
|---|---|---|---|
| 42040 | D | Graves Company Water District - Consumers | 5,016 |
All ZIP Codes in Farmington
- 42040 [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.
Housing & Infrastructure in Farmington
With 71% 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
When a city's housing median build year is 1974, as in Farmington, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.
Over half of homes in Farmington 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 Farmington Homeowners
Equity impact data for Farmington lands in the favorable tier — remediation claims a small slice of what properties here are worth.
Remediation costs in Farmington are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 23% above the Kentucky average.
Lead Exposure Risk for Children in Farmington
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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 71% of the Farmington inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Farmington
- 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 71% 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 Farmington, KY