Dayton, TN (37321): 6 Health-Based Violations Recorded for Mapped Water Systems
EPA data combined for 5 water systems mapped to this ZIP (largest mapped system: Dayton Water Department)
Health-based violation records by water system:
EPA records for the water systems mapped to 37321 in Dayton, TN contain 23 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 6 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 6 health-based violations and 17 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.001 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
- Flood 28 cumulative NFIP claim records. Check the current FEMA map for a specific address.
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No critical alerts appear in the record for Dayton (37321); the high-priority level accounts for 1 elevated-risk finding.
Score Breakdown
Overall Home Safety Score: Score unavailable
Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.
Canonical components
Required domains
Coverage: 3 of 4 components and 2 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (8) CRITICAL
Your Water System
ZIP code 37321 in Dayton, Tennessee is mapped to the water system Dayton Water Department (EPA ID: TN0000174). This system provides water to approximately 25,054 people from surface water sources.
There are 5 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| Dayton Water Department | TN0000174 | 25,054 | Surface water |
| Graysville Water Department | TN0000269 | 1,872 | Groundwater |
| Watts Bar Utility District | TN0000872 | 15,571 | Surface water |
| Laurelbrook School | TN0000178 | 150 | Groundwater |
| Northwest Utility District | TN0000169 | 20,710 | Surface water |
Other Water Quality Reports in Tennessee
- 37010 (Adams) - 6 violations recorded for mapped water systems
- 37011 (Antioch)
- 37012 (Alexandria) - 104 violations recorded for mapped water systems
- 37013 (Antioch) - 3 violations recorded for mapped water systems
- 37014 (Arrington)
- 37015 (Ashland City) - 13 violations recorded for mapped water systems
- 37016 (Auburntown) - 8 violations recorded for mapped water systems
- 37018 (Beechgrove) - 18 violations recorded for mapped water systems
- 37019 (Belfast) - 1 violation recorded for mapped water systems
- 37020 (Bell Buckle) - 16 violations recorded for mapped water systems
- 37022 (Bethpage) - 14 violations recorded for mapped water systems
- 37023 (Big Rock) - 6 violations recorded for mapped water systems
- 37024 (Brentwood)
- 37025 (Bon Aqua)
- 37026 (Bradyville) - 2 violations recorded for mapped water systems
- 37027 (Brentwood) - 14 violations recorded for mapped water systems
- 37028 (Bumpus Mills) - 6 violations recorded for mapped water systems
- 37029 (Burns)
- 37030 (Carthage) - 41 violations recorded for mapped water systems
- 37031 (Castalian Springs) - 12 violations recorded for mapped water systems
Nearby Water Quality Reports
- 37332 (Evensville) - 8 mi - 4 violations recorded for mapped water systems
- 37373 (Sale Creek) - 9 mi - 3 violations recorded for mapped water systems
- 37338 (Graysville) - 10 mi - 19 violations recorded for mapped water systems
- 37308 (Birchwood) - 11 mi - 2 violations recorded for mapped water systems
- 37322 (Decatur) - 12 mi - 3 violations recorded for mapped water systems
- 37304 (Bakewell) - 13 mi
- 37367 (Pikeville) - 15 mi - 9 violations recorded for mapped water systems
- 37336 (Georgetown) - 15 mi - 2 violations recorded for mapped water systems
- 37381 (Spring City) - 17 mi - 11 violations recorded for mapped water systems
- 37379 (Soddy Daisy) - 19 mi - 5 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Dayton Water Department (TN0000174) on EPA.gov.
4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
Compliance History
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 37321.
Detected compounds: PFBA.
Highest measured level: 0.0075 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Environmental Hazards (11) MODERATE
Home & Infrastructure (6) OK
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Dayton
Based on local data for ZIP 37321, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Dayton has 28 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Service recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 37321 safe to drink?
EPA SDWIS records 23 violations since 2021 across the water systems mapped to ZIP 37321 (primary system: Dayton Water Department), including 6 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 37321's water come from?
The recorded water source for Dayton Water Department, a system mapped to ZIP code 37321, is Surface water. This system serves approximately 25,054 people.
How can I get my water tested in Dayton?
If Dayton Water Department supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 37321 tap water?
The Lead and Copper Rule record selected for 37321 reports a 90th-percentile lead result of 0.001 mg/L for a water system mapped to this ZIP (record date 2025-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 37321?
37321 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Rhea County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 37321's water?
Yes, PFAS have been detected in samples from water systems mapped to 37321. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
What does the NFIP claim history show for ZIP 37321?
FEMA records contain 28 flood insurance claims filed in ZIP code 37321; the recorded rated-zone value (the most frequent one if there are several claims) is A, which is claims evidence and may differ from the current FEMA map zone for a property. Claim records do not establish current property risk. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Dayton, TN (37321): 6 Health-Based Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/37321/
@misc{zipcheckup-report-37321,
author = {{ZipCheckup}},
title = {{Dayton, TN (37321): 6 Health-Based Violations Recorded for Mapped Water Systems}},
year = {2026},
url = {https://zipcheckup.com/report/37321/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 37321
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 37332 | Evensville, TN | 8.0 mi | N/A | 4 |
| 37373 | Sale Creek, TN | 9.4 mi | B | 3 |
| 37338 | Graysville, TN | 10.0 mi | N/A | 19 |
| 37308 | Birchwood, TN | 10.6 mi | N/A | 2 |
| 37322 | Decatur, TN | 11.6 mi | N/A | 3 |
| 37304 | Bakewell, TN | 12.8 mi | N/A | 0 |
| 37367 | Pikeville, TN | 14.6 mi | N/A | 9 |
| 37336 | Georgetown, TN | 15.4 mi | N/A | 2 |
| 37381 | Spring City, TN | 17.2 mi | N/A | 11 |
| 37379 | Soddy Daisy, TN | 19.1 mi | B | 5 |
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