County · Texas
Waller County, Texas: drinking water records
This overview covers 5 ZIP codes and 40 community water systems in Waller County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| City of Hempstead TX2370001 | 7,158 | 120 | 0 | 3 | 6.9 ppb |
| City of Waller TX2370003 | 5,448 | 180 | 0 | 1 | 1.5 ppb |
| Prairie View A&m University TX2370002 | 9,550 | 120 | 0 | 0 | 0.7 ppb |
| Brookshire MWD TX2370004 | 5,364 | 120 | 0 | 0 | 1.9 ppb |
| G & W WSC TX2370063 | 3,343 | 120 | 0 | 0 | 0 ppb |
| City of Prairie View TX2370029 | 3,000 | 0 | 0 | 1 | 1.3 ppb |
| Pattison WSC TX2370005 | 1,650 | 120 | 0 | 0 | 1.6 ppb |
| Rolling Hills Colony Water System TX2370006 | 603 | 0 | 0 | 1 | 0 ppb |
| Lakeside Estates Subdivision TX2370008 | 366 | 0 | 0 | 2 | 1.1 ppb |
| Tara Park Water System TX2370016 | 113 | 0 | 0 | 1 | 1.0 ppb |
| Leaning Oak Mobile Home Park TX2370044 | 105 | 0 | 0 | 2 | 2.3 ppb |
| The Houston Oaks Golf and Country Club TX2370030 | 54 | 0 | 0 | 2 | 0 ppb |
| Bft Family Trailer Park TX2370069 | 33 | 0 | 0 | 1 | 1.3 ppb |
| Harris-Waller Counties MUD 5 TX2370138 | 4,098 | 0 | 0 | 0 | 0 ppb |
| Willow Creek Farms MUD TX2370089 | 3,453 | 0 | 0 | 0 | 0 ppb |
| Oak Hollow Subdivision TX2370051 | 1,980 | 0 | 0 | 0 | 0 ppb |
| Waller County Road Improvement Dist 1 TX2370094 | 1,400 | 0 | 0 | 0 | 0 ppb |
| Freeman Ranch TX2370123 | 1,308 | 0 | 0 | 0 | 0 ppb |
| G & W WSC Woodland Lakes Water System TX2370085 | 1,110 | 0 | 0 | 0 | 0 ppb |
| Lakehouse Water Plant TX2370111 | 1,071 | 0 | 0 | 0 | 0 ppb |
| Waller County MUD 41 TX2370143 | 594 | 0 | 0 | 0 | 21.9 ppb |
| Sky Lakes WSC TX2370014 | 537 | 0 | 0 | 0 | 0 ppb |
| Hammond Mound Water System TX2370074 | 528 | 0 | 0 | 0 | 0 ppb |
| Waller County MUD 35 TX2370145 | 411 | 0 | 0 | 0 | 0 ppb |
| Beacon Estates WSC TX2370047 | 330 | 0 | 0 | 0 | 0.6 ppb |
ZIP reports in Waller County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.