Water Quality: Leander, TX
3 water systems • 105,038 people served
Some ConcernsWater Quality Summary
Leander is served by 3 public water systems with a combined service population of 105,038 people, and has 1,177 EPA Safe Drinking Water Act violations on record. Critically, 3 of those are health-based violations, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Leander's violation count is 454% above the national average for Texas. Contaminants associated with violations include Chlorine Dioxide, E. coli, Stage 2 DBP.
Contaminants Found
Can cause anemia in infants and young children; may cause nervous system effects at high levels.
Common source: Water treatment disinfectant used to control taste, odor, and microorganisms
EPA limit: 0.8 mg/L
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)
Trihalomethanes and haloacetic acids that increase cancer risk and may cause adverse reproductive outcomes.
Common source: Chlorine disinfection reacting with natural organic matter in source water
EPA limit: TTHM: 0.080 mg/L; HAA5: 0.060 mg/L
Water Systems Serving Leander
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| CITY OF LEANDER | TX2460012 | Surface Water | 98,330 | 9 |
| BLOCK HOUSE MUD | TX2460110 | Surface Water | 6,618 | 1 |
| ENGLISH ACRES | TX1250033 | Groundwater | 90 | 1167 |
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.