Dekalb Utility District #4
EPA ID: TN0000835 · 927 people served · 15 ZIP codes
ZipCheckup's reading of EPA records for Dekalb Utility District #4 (TN0000835): no drinking-water violations recorded since 2021. With no violations in its EPA file, Dekalb Utility District #4 serves 927 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Dekalb Utility District #4 Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Dekalb Utility District #4 have a median household income of $65,609 and about 58,269 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 50% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 53% 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?
Dekalb Utility District #4'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. 21 detections recorded. 3 detections are above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.
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
Dekalb Utility District #4 (EPA ID: TN0000835) is a community water system in Tennessee that serves approximately 927 people from surface water sources.
This system provides water to 15 ZIP codes across 15 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0021 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 15 ZIP records with known zones are in EPA Radon Zone 1. 8 of 15 ZIP records with known zones are in EPA Radon Zone 2.
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.
- 37012 - Alexandria
- 37016 - Auburntown
- 37059 - Dowelltown
- 37095 - Liberty
- 37118 - Milton
- 37149 - Readyville
- 37166 - Smithville
- 37184 - Watertown
- 37190 - Woodbury
- 38544 - Baxter
- 38547 - Brush Creek
- 38567 - Hickman
- 38569 - Lancaster
- 38581 - Rock Island
- 38582 - Silver Point
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Dekalb Utility District #4 (TN0000835) on EPA.gov.
Frequently Asked Questions
Is Dekalb Utility District #4 water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Dekalb Utility District #4 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 Dekalb Utility District #4 serve?
Dekalb Utility District #4 serves approximately 927 people across 15 ZIP codes in Tennessee.
Where does Dekalb Utility District #4 get its water?
The primary water source is surface water.
How Water Systems Appear in Rankings
Water systems are evaluated by violation history, contaminant detections, and service population. Larger systems with more service connections appear in more rankings.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Dekalb Utility District #4 Water Quality Report, TN. https://zipcheckup.com/water-system/tn0000835/
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