Fort Thomas, AZ Water Safety: 53/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Fort Thomas, AZ: water systems collectively below average — violations documented.
How Fort Thomas Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Fort Thomas Water
- Homes built before 1986: 32% — older plumbing may contain lead solder.
- Estimated remediation: $400 per household.
- CDC health risk index: 12.76 — above typical levels.
Who Supplies Your Water in Fort Thomas
Water supply in Fort Thomas, AZ follows a divided structure: 2 utilities account for the largest share of residential service out of 2 total systems, each managing its own distribution network and EPA reporting. Because these systems operate independently, rate decisions and compliance outcomes are determined separately.
Overview
We track water quality and home safety data for 1 ZIP code in Fort Thomas, Arizona (population ~319), covering 2 community water systems serving approximately 4,199 people region-wide.
No EPA violations recorded across any ZIP codes in Fort Thomas — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Fort Thomas: 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
Fort Thomas water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Fort Thomas
- 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 |
|---|---|---|---|
| 85536 | D | GRAHAM COUNTY UTILITIES - PIMA | 3,799 |
All ZIP Codes in Fort Thomas
- 85536 [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 Fort Thomas
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 Fort Thomas
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Fort Thomas's residential inventory spans multiple construction eras, with the median build year of 1993 landing in a zone where pre- and post-1986 homes are both well represented. That split matters because homes built before 1986 may contain lead-soldered copper joints — a plumbing practice banned that year — while those built before 1970 face the additional possibility of lead pipes in the service line. Whether a specific household sits on the older or newer end of this distribution is the primary variable shaping its individual exposure risk.
Most homes in Fort Thomas 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.
Cost Context: What Remediation Means for Fort Thomas Homeowners
When estimated remediation is placed alongside median property values in Fort Thomas, the resulting ratio is low — a finding consistent with a household financial perspective where documented issues can be addressed without a meaningful impact on overall equity position, making this market one of the more favorable contexts for remediation planning.
Remediation costs in Fort Thomas are relatively low compared to home values. The $0–$800 estimated range is a small fraction of median property value. Home values are 50% below the Arizona average.
Lead Exposure Risk for Children in Fort Thomas
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.
Wherever 32% of local housing was built before solder rules changed — as is the case in Fort Thomas — a faucet-level sample closes the gap that aggregate utility data cannot.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
What You Can Do in Fort Thomas
- 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 32% 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 Fort Thomas, AZ