Is Hollow Rock, TN Tap Water Safe to Drink?
Graded A, with 4 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
92.1/100
waterverge.com Hollow Rock, TN — Water Quality Report
Hollow Rock's drinking water received a grade of A (92.1 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 954 residents using groundwater.
Lead levels were measured at 0.2 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 36 violations on record, including 1 health-based violation. 4 remain unresolved.
What to know about Hollow Rock's water
Hollow Rock ranks #47 out of 299 cities in Tennessee for water quality, placing it above average in the state.
Hollow Rock 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, Hollow Rock may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Hollow Rock, TN water safe to drink?
Hollow Rock's drinking water has significant quality concerns based on EPA testing data. With a grade of A (92.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 954 residents using groundwater (wells).
Recent water quality updates for Hollow Rock
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Hollow Rock's water quality assessment. Grade: A (92.1/100).
Contaminants: Public Notice.
Contaminants: Revised Total Coliform Rule, Chlorine.
Contaminants: Revised Total Coliform Rule, Chlorine.
Federal disaster declaration (FEMA DR-3217). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-459). Flood event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Hollow Rock's water supply.
Well within EPA limits.
Violation history
Hollow Rock's water system has 36 total violations on record, including 1 health-based violation. 4 remain unresolved.
Flood & environmental risk
Carroll County has experienced 2 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 Big Sandy River.
Where does Hollow Rock's water come from?
Hollow Rock's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 954 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Big Sandy River (river).
What Hollow Rock residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Hollow Rock'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.
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 Hollow Rock
Industrial polluters nearby
Reported releases to surface water by facilities near Hollow Rock, ranked by pounds discharged annually.
Total reported releases to surface water: 2 lbs
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
GRANGES AMERICAS INC HUNTINGDON, TN38344 | Copper | 2 | 6.3 mi |
MAGPRO LLC CAMDEN, TN38320 | — | — | 7.8 mi |
HEXPOL - HUNTINGDON HUNTINGDON, TN38344 | — | — | 6.9 mi |
HYDRO GEAR HUNTINGDON, TN38344 | — | — | 9.4 mi |
VP RACING FUELS FULFILLMENT CENTER HUNTINGDON, TN38344 | — | — | 5.9 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D3 — extreme droughtCarroll 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
Carroll County has experienced 2 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. | 0.2 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Hollow Rock compares by contaminant
Explore where Hollow Rock ranks among all Tennessee cities for specific contaminants.
Water source & infrastructure
Where Hollow Rock's water comes from
Hollow Rock'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 954 people through 1 water system.
Water bodies near Hollow Rock
Hollow Rock is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Hollow Rock
| System Name | PWSID | Population | Source |
|---|---|---|---|
| HOLLOW ROCK WATER DEPT | TN0000310 | 954 | GW |
How Hollow Rock compares
Full Tennessee rankings →Hollow Rock's score of 92.1/100 is above the average of 75/100 among major Tennessee cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Tennessee rankings →About Hollow Rock, TN
Wikipedia →Hollow Rock is a town in Carroll County, Tennessee, United States. As of the 2020 census, Hollow Rock had a population of 683. Hollow Rock is just west of, and adjacent to, the town of Bruceton and is 70 km (43 mi) northeast of Jackson.
Learn more about your water
Guides and resources related to Hollow Rock's water quality findings.
Explore water quality across Carroll
Frequently asked questions
Is Hollow Rock, TN tap water safe to drink?
Hollow Rock's water quality earned a grade of A (92.1/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #47 out of 299 cities tested in Tennessee.
What contaminants are in Hollow Rock's water?
Lead was measured at 0.2 ppb (90th percentile). 36 violations are on record.
How is Hollow Rock'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 Hollow Rock?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Hollow Rock's water come from?
Hollow Rock's water is sourced from Groundwater. The city has 1 water system serving approximately 954 residents.
What health violations has Hollow Rock's water system had?
Hollow Rock has 1 health-based violation on record. The most recent violation was recorded in June 2018. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 4 violations remain unresolved.
Is Hollow Rock's groundwater at risk of contamination?
Hollow Rock 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 36 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 Hollow Rock's water compare to other cities?
Hollow Rock ranks #47 out of 299 cities in Tennessee (better than 84% of state cities) and #1375 out of 15744 cities nationally (91th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Hollow Rock's small water system affect quality?
Hollow Rock's system serves approximately 954 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 36 violations on record.