Is Cranfils Gap, TX 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
Cranfils Gap, TX — Water Quality Report
Cranfils Gap'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 2,152 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 22 violations on record, including 1 health-based violation. 5 remain unresolved.
What to know about Cranfils Gap's water
Cranfils Gap ranks #78 out of 1067 cities in Texas for water quality, placing it one of the best in the state.
Cranfils Gap 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, Cranfils Gap may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Cranfils Gap, TX water safe to drink?
Cranfils Gap'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 2,152 residents using groundwater (wells).
Recent water quality updates for Cranfils Gap
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Cranfils Gap's water quality assessment. Grade: A- (88.3/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Lead and Copper Rule.
Contaminants: Lead and Copper Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Cranfils Gap's water supply.
Well within EPA limits.
Violation history
Cranfils Gap's water system has 22 total violations on record, including 1 health-based violation. 5 remain unresolved. 1 violation was issued in the last 5 years.
Where does Cranfils Gap's water come from?
Cranfils Gap's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,152 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.
What Cranfils Gap residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Cranfils Gap'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 Cranfils Gap compares by contaminant
Explore where Cranfils Gap ranks among all Texas cities for specific contaminants.
Water source & infrastructure
Where Cranfils Gap's water comes from
Cranfils Gap'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 2,152 people through 1 water system.
Water systems serving Cranfils Gap
| System Name | PWSID | Population | Source |
|---|---|---|---|
| MUSTANG VALLEY WSC | TX0180038 | 2,152 | GW |
How Cranfils Gap compares
Full Texas rankings →Cranfils Gap's score of 88.3/100 is above the average of 46/100 among major Texas cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Texas rankings →Learn more about your water
Guides and resources related to Cranfils Gap's water quality findings.
Explore water quality across Bosque
Frequently asked questions
Is Cranfils Gap, TX tap water safe to drink?
Cranfils Gap'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 #78 out of 1067 cities tested in Texas.
What contaminants are in Cranfils Gap's water?
Lead was measured at 0.0 ppb (90th percentile). 22 violations are on record.
How is Cranfils Gap'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 Cranfils Gap?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Cranfils Gap's water come from?
Cranfils Gap's water is sourced from Groundwater. The city has 1 water system serving approximately 2,152 residents.
What health violations has Cranfils Gap's water system had?
Cranfils Gap has 1 health-based violation on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.
Is Cranfils Gap's groundwater at risk of contamination?
Cranfils Gap 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 22 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 Cranfils Gap's water compare to other cities?
Cranfils Gap ranks #78 out of 1067 cities in Texas (better than 93% of state cities) and #3523 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 Cranfils Gap's small water system affect quality?
Cranfils Gap's system serves approximately 2,152 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 22 violations on record.