Is Lone Oak, TX Tap Water Safe to Drink?
Graded A-, with 8 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
89.1/100
waterverge.com Lone Oak, TX — Water Quality Report
Lone Oak's drinking water received a grade of A- (89.1 out of 100), indicating good water quality. The city's 1 water system serves approximately 867 residents using purchased surface water.
Lead levels were measured at 0.0 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 20 violations on record, including 3 health-based violations. 8 remain unresolved.
What to know about Lone Oak's water
Lone Oak ranks #62 out of 1067 cities in Texas for water quality, placing it one of the best in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Lone Oak may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Lone Oak, TX water safe to drink?
Lone Oak's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (89.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 867 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Lone Oak
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Lone Oak's water quality assessment. Grade: A- (89.1/100).
Contaminants: Lead and Copper Rule.
1 health-based. Contaminants: Coliform (TCR).
Contaminants: Public Notice.
Federal disaster declaration (FEMA DR-3294). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-1606). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Lone Oak's water supply.
Well within EPA limits.
Violation history
Lone Oak's water system has 20 total violations on record, including 3 health-based violations. 8 remain unresolved.
Flood & environmental risk
Hunt County has experienced 2 federally declared disasters since 2005. 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 Cowleech Fk Sabine Rv At Greenville.
Where does Lone Oak's water come from?
Lone Oak's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 867 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Cowleech Fk Sabine Rv At Greenville (river).
What Lone Oak residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Lone Oak'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 Lone Oak
Industrial polluters nearby
Reported releases to surface water by facilities near Lone Oak, ranked by pounds discharged annually.
| Facility | Top chemical | To surface water (lbs/yr) | Distance |
|---|---|---|---|
L3HARRIS TECHNOLOGIES INTEGRATED SYSTEMS L.P. GREENVILLE, TX75402 | — | — | 9.6 mi |
Source: EPA Toxic Release Inventory (TRI) 2023
Drought conditions
D1 — moderate droughtHunt County is currently in D1 (moderate 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
Hunt County has experienced 2 federally declared disasters since 2005. 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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Lone Oak compares by contaminant
Explore where Lone Oak ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Lone Oak's water comes from
Lone Oak's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by local government ownership and serves approximately 867 people through 1 water system.
Water bodies near Lone Oak
Lone Oak is located near 1 notable water body. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Lone Oak
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CITY OF LONE OAK | TX1160006 | 867 | SWP |
How Lone Oak compares
Full Texas rankings →Lone Oak's score of 89.1/100 is above the average of 46/100 among major Texas cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Texas rankings →About Lone Oak, TX
Wikipedia →Lone Oak is a city in Hunt County, Texas, United States. The population was 643 at the 2020 census, 598 at the 2010 census, up from 521 at the 2000 census.
Learn more about your water
Guides and resources related to Lone Oak's water quality findings.
Explore water quality across Hunt
Frequently asked questions
Is Lone Oak, TX tap water safe to drink?
Lone Oak's water quality earned a grade of A- (89.1/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #62 out of 1067 cities tested in Texas.
What contaminants are in Lone Oak's water?
Lead was measured at 0.0 ppb (90th percentile). 20 violations are on record.
How is Lone Oak'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 Lone Oak?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Lone Oak's water come from?
Lone Oak's water is sourced from Purchased surface water. The city has 1 water system serving approximately 867 residents.
What health violations has Lone Oak's water system had?
Lone Oak has 3 health-based violations on record. The most recent violation was recorded in December 2013. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 8 violations remain unresolved.
How does Lone Oak's water compare to other cities?
Lone Oak ranks #62 out of 1067 cities in Texas (better than 94% of state cities) and #3049 out of 15744 cities nationally (81th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Lone Oak's small water system affect quality?
Lone Oak's system serves approximately 867 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 20 violations on record.