WaterVerge

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 ↓

2K residents served 1 water system PWSID: TX0180038
Overall Score
88.3 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#78 of 1067 in Texas Top 23% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
88.3/100
waterverge.com
A- 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.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

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.

Quality Breakdown

Water quality score

See methodology →
88.3 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
41.3/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Cranfils Gap, TX water safe to drink?

Concerns Identified

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).

5
Active Violations
0.0 ppb
Lead (90th %ile)

Recent water quality updates for Cranfils Gap

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Cranfils Gap's water quality assessment. Grade: A- (88.3/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Key contaminant findings

Based on the most recent EPA sampling data for Cranfils Gap's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

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.

OtherMRMCL
Most recent violations:
Jul 2025 Consumer Confidence Rule Open
Dec 2017 Lead and Copper Rule Open
Dec 2014 Lead and Copper Rule Open
Oct 2008 Chlorine Resolved
Sep 2008 Public Notice Open

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

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Cranfils Gap's water.

Request your utility's CCR

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.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

22
Total violations
1
Health-based
5
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

22 Total
5 Active
1 Health-based
17 Resolved
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
14
Total Coliform Rule
3
Lead and Copper Rule
2
Consumer Confidence Rule
1
Public Notice Rule and Revised PN Rule
1
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Dec 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2014 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Sep 2008 Active
Public Notice
Other Violation 0
Active
Compliance Violation
Monitoring 0
Oct 2008 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2008
Jul 2008 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jul 2008
Jun 2008 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2008
Jun 2008 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jun 2008
Jan 2007 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2007
Oct 2006 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2006
Jul 2006 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2006
Apr 2006 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2006
Jan 2006 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2006
Oct 2005 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2005
Jul 2005 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2005
Apr 2005 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2005
Jan 2005 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2005
Oct 2004 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2004
Jul 2004 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2004
Showing 20 of 22 violations

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 1.0 ppb from 1994 (1.0 ppb) to 2023 (0.0 ppb).
Contaminant Rankings

See how Cranfils Gap compares by contaminant

Explore where Cranfils Gap ranks among all Texas cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
2,152
Water Systems
1
Water Source

Where Cranfils Gap's water comes from

Groundwater

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.

Infrastructure

Water systems serving Cranfils Gap

System Name PWSID Population Source
MUSTANG VALLEY WSC TX0180038 2,152 GW
Regional Comparison

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.

Cranfils Gap (this city)
88.3
Houston
27.8
Austin
31.2
Dallas
36.2
Fort Worth
34.5
Texas avg
46
Share this reportHelp others learn about their water quality
WhatsAppXFacebookLinkedInEmail

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.