Watts Bar Utility District
EPA ID: TN0000872 · 15,571 people served · 10 ZIP codes
ZipCheckup's reading of EPA records for Watts Bar Utility District (TN0000872): no drinking-water violations recorded since 2021. Although compliance varies widely among water utilities nationally, the SDWIS file for Watts Bar Utility District lists no EPA violations for this supplier, whose service area covers 15,571 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Watts Bar Utility District Source: EPA SDWIS service area boundaries.
Service area boundary - average Home Safety grade of mapped ZIPs: C
Demographics of ZIP Codes Served
The ZIP codes associated with Watts Bar Utility District have a median household income of $60,520 and about 107,099 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 43% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 55% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Watts Bar Utility District's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 12 detections recorded.
Comparable Water Systems
Similar-sized systems in Tennessee
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Watts Bar Utility District (EPA ID: TN0000872) is a community water system in Tennessee that serves approximately 15,571 people from surface water sources.
This system provides water to 10 ZIP codes across 10 communities.
ZIP-Area Home Safety Context: C (63/100)
This is the average Home Safety Score for 1 of 10 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.001 mg/L | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
7 of 10 ZIP records with known zones are in EPA Radon Zone 1. 3 of 10 ZIP records with known zones are in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by TN or modeled from parcel and building-footprint data.
- 37321 - Dayton
- 37322 - Decatur
- 37332 - Evensville
- 37381 - Spring City
- 37763 - Kingston
- 37774 - Loudon
- 37826 - Niota
- 37846 - Philadelphia
- 37874 - Sweetwater
- 37880 - Ten Mile
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Watts Bar Utility District (TN0000872) on EPA.gov.
Frequently Asked Questions
Is Watts Bar Utility District water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Watts Bar Utility District in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Watts Bar Utility District serve?
Watts Bar Utility District serves approximately 15,571 people across 10 ZIP codes in Tennessee.
Where does Watts Bar Utility District get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Detected
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected; the table compares each one with the EPA MCL where one exists (April 2024 rule, compliance required from 2029) and with this state's enforceable standard where one exists.
EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Watts Bar Utility District, TN: Serves 16K People. https://zipcheckup.com/water-system/tn0000872/
@misc{zipcheckup-water-system-tn0000872,
author = {{ZipCheckup}},
title = {{Watts Bar Utility District, TN: Serves 16K People}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/tn0000872/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Watts Bar Utility District (EPA ID: TN0000872) - request the latest Consumer Confidence Report or ask about specific contaminants.