ZIP Code 79227 Water Quality & Testing Report
Crowell, TX · Foard County County · Updated for 2026
Compiled & verified by Sahajul Haque from official EPA SDWIS recordsIs Tap Water Safe to Drink in ZIP 79227 (Crowell, TX)?
Caution / Filtration Recommended: Tap water in ZIP code 79227 (Crowell, TX) has compliance concerns, earning an EPA Safety Grade of C (66/100) due to 27 health violation(s) and 1.5 ppb lead. While treated by Thalia Water Supply Corporation, residents are advised to use an NSF/ANSI 53 certified water filter for drinking and cooking.
Water Safety Grade
Fair — Some compliance concerns
Health Violations
27
Total Violations
30
Lead Risk
High
Contaminants
2
Active Water Quality Issues Detected
EPA records show 21 unresolved violations. Contact Thalia Water Supply Corporation for current status.
About Tap Water in ZIP Code 79227
Tap water in ZIP code 79227 (Crowell, TX) is distributed by Thalia Water Supply Corporation (EPA ID: TX0780013), serving approximately 125 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of C with a composite quality score of 66/100.
Water System
Thalia Water Supply Corporation
EPA ID: TX0780013
Water Source
Surface Water
Population Served
125 residents
County
Foard County County, Texas
Lead Levels in ZIP 79227
EPA action level: 15 ppb | Public health goal: 0 ppb
Lead Level: 1.5 ppb — Very Low
Lead exposure risk in 79227 is rated High. EPA models estimate a 57% exposure probability based on housing and infrastructure age.
EPA model estimate based on housing age and infrastructure
Water Hardness & Mineral Content
Grains per gallon (GPG) & Parts per million (PPM / mg/L)
Water in ZIP 79227 is Very Hard (195 mg/L / 11.4 GPG). High concentrations of dissolved limestone minerals cause severe mineral buildup, stiff laundry, dry skin, and premature water heater wear.
Grains per gallon
Parts per million CaCO3
Official EPA SDWIS Database Entry
Utility: Thalia Water Supply Corporation · PWSID: TX0780013
Violation History
Past 5 years — EPA SDWIS data
Thalia Water Supply Corporation has recorded 27 health-based violations out of 30 total violations over the past 5 years. 21 violations remain unresolved in EPA tracking records.
Regulatory compliance risk for this utility is rated Critical based on past reporting and enforcement records.
Contaminants Detected
Contaminants with health-based violations on record
EPA records identify 2 contaminants with health-based violations in the past 5 years: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHM).
⚖ Enforcement Actions
Water Source & Environmental Factors
Surface Water
This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.
Lower potential
% of household income spent on energy — indicator of older infrastructure
EPA Radon Zone 3 — lower radon potential, though the EPA still recommends testing all homes.
Water Quality Testing in ZIP 79227
Tap Water & Well Testing Recommendations
Residents in ZIP code 79227 served by Thalia Water Supply Corporation can test tap water or private well systems to verify water purity. Testing detects hidden contaminants before they impact family health.
Tap Water Testing Steps
- 1.Conduct a certified lead check if your home was constructed before 1986.
- 2.Use certified lab testing kits rather than uncalibrated test strips for regulated compliance.
- 3.Sample water from both your kitchen faucet and water heater to compare line purity.
Private Well Testing Steps
- •Test for Coliform bacteria and Nitrates annually.
- •Test for heavy metals, radon, and PFAS every 3 years.
- •Send samples to a state-certified drinking water laboratory recognized by Texas Commission on Environmental Quality (TCEQ).
🛡 What Should You Do? — ZIP 79227 Recommendations
Some compliance concerns — take precautions
- ⚠ Use a certified NSF/ANSI 53 filter for drinking and cooking water if you have young children
- ⚠ Never give unfiltered tap water to infants in formula — use certified bottled or filtered water
- ⚠ Request a copy of the Consumer Confidence Report to see what was detected and when
- ⚠ Call the EPA Safe Drinking Water Hotline: 1-800-426-4791
Recommended Water Treatment Systems:
NSF 53 Lead Pitcher Filter
Specifically certified to reduce lead and copper at the tap.
NSF 58 Under-Sink RO System
Advanced filtration for PFAS, fluoride, nitrates, and organic chemicals.
Frequently Asked Questions — ZIP 79227 Water Quality
Is tap water safe to drink in ZIP code 79227?+
How do I get my water tested in ZIP 79227 (Crowell, TX)?+
How hard is the tap water in 79227?+
Should I test private well water in 79227?+
What is the lead level in 79227 tap water?+
Is there an active boil water notice in 79227?+
Who provides tap water to 79227?+
What water filter should I use in 79227?+
Data Sources & Methodology
Water quality data for ZIP code 79227 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by Thalia Water Supply Corporation. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →