Is Walnut Spring, TX Tap Water Safe to Drink?
Graded B+, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
84/100
waterverge.com Walnut Spring, TX — Water Quality Report
Walnut Spring's drinking water received a grade of B+ (84 out of 100), indicating good water quality. The city's 1 water system serves approximately 795 residents using groundwater.
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 5 violations on record, including 0 health-based violations. 5 remain unresolved.
What to know about Walnut Spring's water
Walnut Spring ranks #253 out of 1067 cities in Texas for water quality, placing it above average in the state.
Walnut Spring 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, Walnut Spring may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Walnut Spring, TX water safe to drink?
Walnut Spring's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (84/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 795 residents using groundwater (wells).
Recent water quality updates for Walnut Spring
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Walnut Spring's water quality assessment. Grade: B+ (84/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Lead and Copper Rule.
Contaminants: Consumer Confidence Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Walnut Spring's water supply.
Well within EPA limits.
Violation history
Walnut Spring's water system has 5 total violations on record, including 0 health-based violations. 5 remain unresolved. 1 violation was issued in the last 5 years.
Where does Walnut Spring's water come from?
Walnut Spring's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 795 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Walnut Spring residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Walnut Spring'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
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 Walnut Spring compares by contaminant
Explore where Walnut Spring ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Walnut Spring's water comes from
Walnut Spring'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 795 people through 1 water system.
Water systems serving Walnut Spring
| System Name | PWSID | Population | Source |
|---|---|---|---|
| CITY OF WALNUT SPRINGS | TX0180020 | 795 | GW |
How Walnut Spring compares
Full Texas rankings →Walnut Spring's score of 84/100 is above the average of 46/100 among major Texas cities. It outscores 9 of 10 nearby cities.
Nearby cities
View Texas rankings →Learn more about your water
Guides and resources related to Walnut Spring's water quality findings.
Explore water quality across Bosque
Frequently asked questions
Is Walnut Spring, TX tap water safe to drink?
Walnut Spring's water quality earned a grade of B+ (84/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #253 out of 1067 cities tested in Texas.
What contaminants are in Walnut Spring's water?
Lead was measured at 0.0 ppb (90th percentile). 5 violations are on record.
How is Walnut Spring'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 Walnut Spring?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Walnut Spring's water come from?
Walnut Spring's water is sourced from Groundwater. The city has 1 water system serving approximately 795 residents.
Is Walnut Spring's groundwater at risk of contamination?
Walnut Spring 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 5 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 Walnut Spring's water compare to other cities?
Walnut Spring ranks #253 out of 1067 cities in Texas (better than 76% of state cities) and #6162 out of 15744 cities nationally (61th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Walnut Spring's small water system affect quality?
Walnut Spring's system serves approximately 795 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 5 violations on record.