Contaminant 8000
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
PWSID IL0515500 · Purchased / wholesaleState-owned
700 people served. No health-based SDWIS violations recorded in the past 5 years. 4 remain unresolved. Last cited 3 years ago.
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (contaminant 1006).
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (contaminant 1006).
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; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure
Monitoring failure; 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
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
Vandalia, Illinois (Census place; block-group disparity scores aggregated by centroid containment): a service population of 6,058. Local disparity score for pm2.5 (fine particulate) sits below the reference (90). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 90 | below the reference |
| Ozone | 101 | near the reference |
| Nitrogen dioxide (NO₂) | 82 | below the reference |
| Diesel particulate | 71 | below the reference |
| Toxic releases (RSEI) | 11 | well below the reference |
| Traffic proximity | 42 | well below the reference |
| Lead-paint risk (pre-1960 housing) | 113 | moderately above the reference |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 93 | near the reference |
| Hazardous-waste site proximity | 75 | below the reference |
| Underground storage tanks | 108 | near the reference |
| NPDES wastewater proximity | 89 | below the reference |
| Drinking-water non-compliance | 134 | moderately above 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 2021-01-01 → 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.