Water Quality: Tomball, TX
6 water systems • 18,524 people served
Multiple Health ViolationsWater Quality Summary
Tomball is served by 6 public water systems with a combined service population of 18,524 people, and has 75 EPA Safe Drinking Water Act violations on record. Critically, 16 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Tomball's violation count is 65% below the national average for Texas. Contaminants associated with violations include Disinfection Byproducts, E. coli, HAA5, Total Organic Carbon.
Contaminants Found
Broad category of chemicals formed during disinfection, associated with increased cancer risk and adverse reproductive effects.
Common source: Reaction of disinfectants (chlorine, ozone, chloramines) with organic matter
Causes gastrointestinal illness; certain strains (e.g., O157:H7) can cause severe kidney failure and death.
Common source: Fecal contamination from humans or animals entering the water supply
EPA limit: Zero (no E. coli permitted in drinking water)
Haloacetic acids are associated with increased cancer risk and potential reproductive and developmental effects.
Common source: Reaction of chlorine disinfectants with organic matter in treated water
EPA limit: 0.060 mg/L (60 ppb)
Not a direct health risk but reacts with disinfectants to form carcinogenic byproducts such as trihalomethanes.
Common source: Decaying plant material, algae, soil organic matter in source water
EPA limit: Treatment technique (must reduce TOC based on source water level)
Water Systems Serving Tomball
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| CITY OF TOMBALL | TX1010026 | Groundwater | 17,532 | 2 |
| VAN MANOR MOBILE HOME PARK | TX1011433 | Groundwater | 333 | 6 |
| COUSHATTE CAMPGROUND | TX0080019 | Groundwater | 250 | 40 |
| PITCAIRN WSC | TX1010078 | Groundwater | 238 | 2 |
| WINTERHAVEN SUBDIVISION | TX1012015 | Groundwater | 138 | 8 |
| THE RIDGE AT FRIO RIVER WATER SYSTEM | TX1930024 | Groundwater | 33 | 17 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in Texas
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.