Contaminant 8000
Unresolved Revised Total Coliform Rule violation cited in 2025 (contaminant 8000).
PWSID MD0030011 · GroundwaterMunicipal
416 people served. No health-based SDWIS violations recorded in the past 5 years. 4 remain unresolved. Last cited 1 year ago.
Unresolved Revised Total Coliform Rule violation cited in 2025 (contaminant 8000).
Unresolved Revised Total Coliform Rule violation cited in 2025 (contaminant 8000).
Unresolved Revised Total Coliform Rule violation cited in 2025 (contaminant 8000).
Unresolved Revised Total Coliform Rule violation cited in 2025 (contaminant 8000).
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
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Baltimore, Maryland (Census place; block-group disparity scores aggregated by centroid containment): a service population of 584,548. Local disparity score for pm2.5 (fine particulate) sits well below the reference (37). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 37 | well below the reference |
| Ozone | 143 | moderately above the reference |
| Nitrogen dioxide (NO₂) | 155 | well above the reference burden |
| Diesel particulate | 158 | well above the reference burden |
| Toxic releases (RSEI) | 106 | near the reference |
| Traffic proximity | 164 | well above the reference burden |
| Lead-paint risk (pre-1960 housing) | 171 | well above the reference burden |
| Superfund site proximity | 114 | moderately above the reference |
| RMP-facility proximity | 175 | well above the reference burden |
| Hazardous-waste site proximity | 180 | well above the reference burden |
| Underground storage tanks | 120 | moderately above the reference |
| NPDES wastewater proximity | 145 | moderately above the reference |
| Drinking-water non-compliance | 0 | 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 2025-01-01 → 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.