Xylenes (total)
Unresolved Arsenic Rule violation cited in 2025 (xylenes (total)).
PWSID PA6250090 · Purchased / wholesaleMunicipal
12,500 people served. No health-based SDWIS violations recorded in the past 5 years. 20 remain unresolved. Last cited 1 year ago.
Unresolved Arsenic Rule violation cited in 2025 (xylenes (total)).
Unresolved Arsenic Rule violation cited in 2025 (benzene).
Unresolved Arsenic Rule violation cited in 2025 (contaminant 2955).
Unresolved Arsenic Rule violation cited in 2025 (contaminant 2964).
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
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; 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
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Erie, Pennsylvania (Census place; block-group disparity scores aggregated by centroid containment): a service population of 94,826. Local disparity score for pm2.5 (fine particulate) sits well below the reference (24). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 24 | well below the reference |
| Ozone | 105 | near the reference |
| Nitrogen dioxide (NO₂) | 140 | moderately above the reference |
| Diesel particulate | 62 | below the reference |
| Toxic releases (RSEI) | 156 | well above the reference burden |
| Traffic proximity | 84 | below the reference |
| Lead-paint risk (pre-1960 housing) | 144 | moderately above the reference |
| Superfund site proximity | 104 | near the reference |
| RMP-facility proximity | 118 | moderately above the reference |
| Hazardous-waste site proximity | 118 | moderately above the reference |
| Underground storage tanks | 109 | near the reference |
| NPDES wastewater proximity | 73 | below 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 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.