Is Dyer, TN Tap Water Safe to Drink?
Graded A-, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
88.3/100
waterverge.com Dyer, TN — Water Quality Report
Dyer's drinking water received a grade of A- (88.3 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,783 residents using groundwater.
Lead levels were measured at 1.4 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 14 violations on record, including 0 health-based violations. 5 remain unresolved.
What to know about Dyer's water
Dyer ranks #111 out of 299 cities in Tennessee for water quality, placing it mid-range in the state.
Dyer relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Dyer may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Dyer, TN water safe to drink?
Dyer's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (88.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,783 residents using groundwater (wells).
Recent water quality updates for Dyer
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Dyer's water quality assessment. Grade: A- (88.3/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Consumer Confidence Rule.
Federal disaster declaration (FEMA DR-4427). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3217). Hurricane event — may have impacted local water infrastructure.
Contaminants: Consumer Confidence Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Dyer's water supply.
Well within EPA limits.
Violation history
Dyer's water system has 14 total violations on record, including 0 health-based violations. 5 remain unresolved. 2 violations were issued in the last 5 years.
Flood & environmental risk
Gibson County has experienced 5 federally declared disasters since 1975. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include North Fork Forked Deer River.
Where does Dyer's water come from?
Dyer's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,783 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include North Fork Forked Deer River (river).
What Dyer residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Dyer's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Dyer's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Top industrial polluters within 10 miles of Dyer
Industrial polluters nearby
Reported releases to surface water by facilities near Dyer, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
BIG BEND GALVANIZING LLC TRENTON, TN38382 | — | — | 9.1 mi |
MACLEAN POWER SYSTEMS TRENTON, TN38382 | — | — | 9.2 mi |
SILGAN CONTAINERS MANUFACTURING CORP TRENTON, TN38382 | — | — | 8.2 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D3 — extreme droughtGibson County is currently in D3 (extreme drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Gibson County has experienced 5 federally declared disasters since 1975. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.4 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Dyer compares by contaminant
Explore where Dyer ranks among all Tennessee cities for specific contaminants.
Water source & infrastructure
Where Dyer's water comes from
Dyer's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by local government ownership and serves approximately 2,783 people through 1 water system.
Water bodies near Dyer
Dyer is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Dyer
| System Name | PWSID | Population | Source |
|---|---|---|---|
| DYER WATER DEPT | TN0000209 | 2,783 | GW |
How Dyer compares
Full Tennessee rankings →Dyer's score of 88.3/100 is above the average of 75/100 among major Tennessee cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Tennessee rankings →About Dyer, TN
Wikipedia →Dyer is a city in Gibson County, Tennessee, United States. As of the 2020 census, Dyer had a population of 2,308. Dyer was originally known as Dyer Station, a name given by railroad workers in the early days of rail.
Learn more about your water
Guides and resources related to Dyer's water quality findings.
Explore water quality across Gibson
Frequently asked questions
Is Dyer, TN tap water safe to drink?
Dyer's water quality earned a grade of A- (88.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #111 out of 299 cities tested in Tennessee.
What contaminants are in Dyer's water?
Lead was measured at 1.4 ppb (90th percentile). 14 violations are on record.
How is Dyer's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Dyer?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Dyer's water come from?
Dyer's water is sourced from Groundwater. The city has 1 water system serving approximately 2,783 residents.
Is Dyer's groundwater at risk of contamination?
Dyer uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 14 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Dyer's water compare to other cities?
Dyer ranks #111 out of 299 cities in Tennessee (better than 63% of state cities) and #3518 out of 15744 cities nationally (78th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Dyer's small water system affect quality?
Dyer's system serves approximately 2,783 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 14 violations on record.