Contaminant 8000
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
PWSID TX1080001 · Surface waterMunicipal
21,065 people served. No health-based SDWIS violations recorded in the past 5 years. 3 remain unresolved. Last cited 3 years ago.
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (bromate).
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (bromate).
Health-based violations exceed an MCL or treatment-technique standard. Monitoring violations are reporting failures with no measured exceedance — they tell you the system isn't fully transparent, not that the water is unsafe today.
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Alamo, Texas (Census place; block-group disparity scores aggregated by centroid containment): a service population of 19,811. Local disparity score for pm2.5 (fine particulate) sits severely above the reference burden (235). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 235 | severely above the reference burden |
| Ozone | 13 | well below the reference |
| Nitrogen dioxide (NO₂) | 185 | well above the reference burden |
| Diesel particulate | 34 | well below the reference |
| Toxic releases (RSEI) | 8 | well below the reference |
| Traffic proximity | 134 | moderately above the reference |
| Lead-paint risk (pre-1960 housing) | 67 | below the reference |
| Superfund site proximity | 196 | well above the reference burden |
| RMP-facility proximity | 215 | severely above the reference burden |
| Hazardous-waste site proximity | 98 | near the reference |
| Underground storage tanks | 166 | well above the reference burden |
| NPDES wastewater proximity | 114 | moderately above the reference |
| Drinking-water non-compliance | 25 | well below the reference |
Source: Census ACS 2018-2022 (5-year) + USEPA-clone EJ blockgroup stats (raw indicators + EJ disparity mirror).
Source. EPA Safe Drinking Water Information System · retrieved 2026-05-07. Reporting period 2022-01-01 → 2026-05-07.
What this is not. SDWIS records compliance against federal MCLs — not a direct readout of tap-water concentrations. Active health-based violations are not the same as a current crisis; we link to the EPA record so you can verify return-to-compliance status before forming a conclusion.