Apr 15, 2026 · 7 min read
PFAS "Forever Chemicals" in US Drinking Water: 2026 Update
PFAS contamination affects an estimated 200 million Americans. Here's what the latest EPA enforcement means for your tap water.
ZIP Code 77433 Water Quality
Texas · 11,464 people served · 16 water systems
F
FailingZIP code 77433 is in Texas and is a small city from a drinking-water-service perspective, with 11,464 people served by 16 EPA-registered public water systems. It corresponds to CYPRESS.
Within ZIP code 77433, the EPA Safe Drinking Water Information System (SDWIS) records 53 health-based violations during the past five years across 16 water systems serving this postal area. The grade of F reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
ZIP Code Location
Loading map...
Cities in ZIP 77433
Water Systems Serving 77433
BLUE BELL MANOR SUBDIVISION
PWSID: TX1010647
2,607 served
DOGWOOD TREE WATER SYSTEM
PWSID: TX1010927
48 served
QUAILWOOD WATER SYSTEM
PWSID: TX1011475
48 served
RIVER PLANTATION MUD
PWSID: TX1700028
2,898 served
HARRIS COUNTY MUD 58
PWSID: TX1011704
2,289 served
MONTGOMERY COUNTY MUD 212
PWSID: TX1700967
45 served
TOWER OAK BEND WSC
PWSID: TX1011981
390 served
CALVARY UTILITY
PWSID: TX1701027
0 served
LAZY ACRES MOBILE HOME PARK
PWSID: TX1013249
75 served
WOODLAND ACRES SUBDIVISION
PWSID: TX0360027
643 served
RIVERWOOD ESTATES
PWSID: TX1460146
585 served
OAKLAND VILLAGE MOBILE HOME COMMUNITY
PWSID: TX1011049
150 served
MAPLE LEAF MOBILE HOME SUBDIVISION
PWSID: TX1011493
861 served
WHITE OAK VALLEY ESTATES
PWSID: TX1700036
750 served
HOLIDAY HARBOR SUBDIVISION
PWSID: TX1610022
75 served
THE HIGHLANDS
PWSID: TX1700909
0 served
About ZIP-code water data
Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.
From the Blog
Photo by Bluewater Sweden on Unsplash
Mar 22, 2026 · 6 min read
How to Read Your Annual Water Quality Report (CCR)
Your water utility is legally required to send you a Consumer Confidence Report every year. Here's how to actually understand it.
Photo by Louis Hansel on Unsplash
Mar 5, 2026 · 9 min read
Lead in Tap Water: The Complete 2026 Guide
Lead enters drinking water through old pipes and fixtures. Here's how to identify your risk and what to do about it.
Photo by Eduardo Casajús Gorostiaga on Unsplash
Feb 18, 2026 · 5 min read
What Is an EPA Maximum Contaminant Level (MCL)?
MCLs are the foundation of US drinking water safety. Here's how they're set and what they mean for your tap.
Photo by Naja Bertolt Jensen on Unsplash
