Combined Radium 226/228
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2026 (combined radium 226/228).
PWSID NJ1216001 · Mixed sourcesMunicipal
52,328 people served. 4 health-based SDWIS violations recorded in the past 5 years. 8 remain unresolved. Last cited this year.
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2026 (combined radium 226/228).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (combined radium 226/228).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (combined radium 226/228).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (combined radium 226/228).
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.
Maximum contaminant level exceeded
Maximum contaminant level exceeded
Maximum contaminant level exceeded
Maximum contaminant level exceeded
Failure to monitor as scheduled; returned to compliance
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
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; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled
Failure to monitor as scheduled; returned to compliance
Perth Amboy, New Jersey (Census place; block-group disparity scores aggregated by centroid containment): a service population of 55,226. Local disparity score for pm2.5 (fine particulate) sits below the reference (77). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 77 | below the reference |
| Ozone | 134 | moderately above the reference |
| Nitrogen dioxide (NO₂) | 185 | well above the reference burden |
| Diesel particulate | 213 | severely above the reference burden |
| Toxic releases (RSEI) | 167 | well above the reference burden |
| Traffic proximity | 180 | well above the reference burden |
| Lead-paint risk (pre-1960 housing) | 181 | well above the reference burden |
| Superfund site proximity | 222 | severely above the reference burden |
| RMP-facility proximity | 186 | well above the reference burden |
| Hazardous-waste site proximity | 211 | severely above the reference burden |
| Underground storage tanks | 195 | well above the reference burden |
| NPDES wastewater proximity | 195 | well above the reference burden |
| Drinking-water non-compliance | 5 | 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 2023-01-01 → 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.