D
50

Poor Water Quality

The Colony, TX 75056

Denton County · Population served: 192,542 · Data updated March 2026

Water Systems Serving This Area

🏔
BRYAN CO. RWS & SWMD #2
Surface water · Pop. 6,270
PWSID: OK1010604
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CITY OF LEWISVILLE
Surface water · Pop. 140,880
PWSID: TX0610004
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CITY OF THE COLONY
Surface water · Pop. 45,367
PWSID: TX0610081
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BEACH AND TENNIS CLUB HOA
Surface water · Pop. 25
PWSID: TX0610266

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
1.9
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

8 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA8.7 pptNo standard500 pptUnregulated
PFBA7.8 pptNo standard500 pptUnregulated
PFPeA7.6 pptNo standardUnregulated
PFHxA7.5 pptNo standard400 pptUnregulated
PFHxA4.6 pptNo standard400 pptUnregulated
PFPeA4.5 pptNo standardUnregulated
PFBS4.1 ppt2000 ppt100 pptBelow limit
PFBS3.2 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

27Total (5yr)
7Health-Based
8Major

Water Quality Summary

Understanding Your Water in The Colony

Tap water quality in The Colony, Texas (75056) receives an overall grade of D (Poor) with a score of 50 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 18 points below the Texas state average of 68. Compared to the national average (75), this area scores significantly lower. The area is served by 4 water systems providing water to approximately 192,542 people, using surface water sources. Testing has found elevated levels of Lead that warrant attention. PFAS testing detected 8 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 27 violations, including 7 health-based violations.

Your Score 50/100 D
vs State 18 pts below Texas avg (68)
vs National 25 pts below national avg (75)

What a Grade D Means

A score of 50/100 signals poor water quality in The Colony, TX. Significant issues have been identified, which may include multiple violations, contaminant levels near or above regulatory limits, or PFAS contamination. We recommend reviewing the detailed contaminant data below, considering a certified water filter, and checking your utility's Consumer Confidence Report for the latest information.

Surface water: sourced from rivers, lakes, or reservoirs

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in The Colony, Texas receives a grade of D (Poor) with a score of 50/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 75056 is served by 4 water systems using surface water sources, providing water to approximately 192,542 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.

Lead was detected at 1.9 ppb in The Colony, Texas. While this is below the EPA action level of 15 ppb, it exceeds the health guideline of 1 ppb recommended by health organizations. Consider a certified lead filter, especially if you have young children.

8 PFAS compounds were detected in water serving The Colony, Texas, but all are currently below EPA limits. While levels are within regulatory standards, some health organizations recommend minimizing any PFAS exposure. Activated carbon or reverse osmosis filters can reduce PFAS levels.

Water systems serving The Colony, Texas have received 27 violations in the last 5 years, including 7 health-based violations. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (lead, PFAS), residents in The Colony, Texas should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

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