Contaminant 5000
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5000).
PWSID NY2701118 · Purchased / wholesaleMunicipal
7,800 people served. No health-based SDWIS violations recorded in the past 5 years. 14 remain unresolved. Last cited 2 years ago.
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5000).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5000).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5000).
Unresolved Total Trihalomethanes Rule violation cited in 2023 (total trihalomethanes (tthm)).
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.
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Failure to monitor as scheduled
Rochester, New York (Census place; block-group disparity scores aggregated by centroid containment): a service population of 210,992. Local disparity score for pm2.5 (fine particulate) sits well below the reference (36). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 36 | well below the reference |
| Ozone | 100 | near the reference |
| Nitrogen dioxide (NO₂) | 165 | well above the reference burden |
| Diesel particulate | 119 | moderately above the reference |
| Toxic releases (RSEI) | 190 | well above the reference burden |
| Traffic proximity | 182 | well above the reference burden |
| Lead-paint risk (pre-1960 housing) | 189 | well above the reference burden |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 161 | well above the reference burden |
| Hazardous-waste site proximity | 193 | well above the reference burden |
| Underground storage tanks | 157 | well above the reference burden |
| NPDES wastewater proximity | 123 | 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 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.