F
26

Failing Water Quality

Cypress, TX 77429

Harris County · Population served: 160,847 · Data updated March 2026

Water Systems Serving This Area

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ROSHARON TOWNSHIP
Groundwater · Pop. 354
PWSID: TX0200036
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SNUG HARBOR SUBDIVISION
Groundwater · Pop. 135
PWSID: TX0200053
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RIVERSIDE ESTATES
Groundwater · Pop. 297
PWSID: TX0200058
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WILCO WATER
Groundwater · Pop. 243
PWSID: TX0200083
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MOORELAND SUBDIVISION WATER SYSTEM
Groundwater · Pop. 201
PWSID: TX0200094

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
12.7
15 ppb 1 ppb Warning
Copper
2220.0
1300 ppb 300 ppb Exceeded

PFAS / Forever Chemicals

14 detected All below limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFBA19.2 pptNo standard500 pptUnregulated
PFPeA11.9 pptNo standardUnregulated
PFBA6.9 pptNo standard500 pptUnregulated
PFPeA6.3 pptNo standardUnregulated
PFPeA6.0 pptNo standardUnregulated
PFHxA6.0 pptNo standard400 pptUnregulated
PFBA5.9 pptNo standard500 pptUnregulated
PFPeA5.3 pptNo standardUnregulated

Violation History (Last 5 Years)

1788Total (5yr)
324Health-Based
1058Major

Water Quality Summary

Understanding Your Water in Cypress

Tap water quality in Cypress, Texas (77429) receives an overall grade of F (Failing) with a score of 26 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 42 points below the Texas state average of 68. Compared to the national average (75), this area scores significantly lower. The area is served by 136 water systems providing water to approximately 160,847 people, using surface water and groundwater sources. Testing has found elevated levels of Lead, Copper that warrant attention. PFAS testing detected 14 compounds, all currently below EPA limits. Over the past 5 years, water systems here have accumulated 1788 violations, including 324 health-based violations.

Your Score 26/100 F
vs State 42 pts below Texas avg (68)
vs National 49 pts below national avg (75)

What a Grade F Means

A score of 26/100 indicates serious water quality failures in Cypress, TX. The water system has significant violations, contaminant exceedances, or enforcement actions. Residents should strongly consider using a certified water filtration system for drinking and cooking water, requesting their utility's latest test results, and potentially having their water independently tested.

Surface water: sourced from rivers, lakes, or reservoirs
Groundwater: drawn from underground aquifers via wells

Health Information

What These Contaminants Mean for You

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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.

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Copper in Your Water

Copper can leach into water from copper plumbing, especially in newer homes or when water is acidic.

Health Effects

Short-term exposure above 1,300 ppb can cause gastrointestinal distress. Long-term exposure may cause liver or kidney damage. People with Wilson's disease are especially vulnerable.

Common Sources

Copper pipes, fittings, and faucets are the most common source. Corrosive (low-pH) water accelerates copper leaching.

What You Can Do

If copper levels are elevated, flush pipes by running water for 15–30 seconds before use. Reverse osmosis and distillation systems effectively remove copper.

Common Questions

Frequently Asked Questions

Tap water in Cypress, Texas receives a grade of F (Failing) with a score of 26/100. 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 77429 is served by 136 water systems using surface water, groundwater sources, providing water to approximately 160,847 people. Multiple source types mean your water may come from a blend of surface and underground sources.

Lead was detected at 12.7 ppb in Cypress, 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.

14 PFAS compounds were detected in water serving Cypress, 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 Cypress, Texas have received 1788 violations in the last 5 years, including 324 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, copper), residents in Cypress, 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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