Tap Water Quality in Katy, Texas (ZIP 77449)
Serving Katy, Texas
Is the Tap Water Safe in Katy, Texas?
Tap water in Katy, Texas (ZIP 77449) has 3 contaminants above EPA health-based guidelines (MCLGs) in at least one of the 1 city served. We recommend reviewing detailed city reports below and considering a certified water filter for additional protection.
ZIP 77449 is served by 3 water utilities providing water to Katy. Water quality varies by utility and city. Click on the cities below to see detailed reports for your specific area.
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Water Quality Report for ZIP 77449
1 contaminant above EPA health guidelines
These levels represent the worst case across all cities in this ZIP code. Check individual city reports for specific details.
Found in Katy
Water Utilities Serving ZIP 77449
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Best Water Filters for Katy (ZIP 77449)
Based on the contaminants found in your area, we recommend NSF-certified water filters that can remove the specific contaminants above health guidelines.
Filter guides for the contaminants detected here:
Frequently Asked Questions about Katy Tap Water
Is the tap water safe in Katy, Texas (ZIP 77449)?
Which water utilities serve ZIP code 77449?
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What contaminants are in Katy water (ZIP 77449)?
Should I use a water filter in Katy (ZIP 77449)?
What cities are in ZIP code 77449?
How we built this page
Water-quality data on this page comes from public federal and state records for the 3 utilityies serving ZIP 77449. We refresh each utility's record whenever its underlying source publishes new data.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: the most recent published Consumer Confidence Report (CCR) from each utility serving this ZIP, where available.
- Service area & contact: EPA SDWIS plus the Texas Department of Environmental Protection / Drinking Water program.
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