Xylenes (total)
Unresolved Arsenic Rule violation cited in 2022 (xylenes (total)).
PWSID PA6610046 · GroundwaterPrivate
300 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 2022 (xylenes (total)).
Unresolved Arsenic Rule violation cited in 2022 (benzene).
Unresolved Arsenic Rule violation cited in 2022 (contaminant 2955).
Unresolved Arsenic Rule violation cited in 2022 (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.
OTHER; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
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
Butler, Pennsylvania (Census place; block-group disparity scores aggregated by centroid containment): a service population of 13,387. Local disparity score for pm2.5 (fine particulate) sits below the reference (71). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 71 | below the reference |
| Ozone | 91 | near the reference |
| Nitrogen dioxide (NO₂) | 80 | below the reference |
| Diesel particulate | 58 | below the reference |
| Toxic releases (RSEI) | 111 | moderately above the reference |
| Traffic proximity | 51 | 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 | 99 | near the reference |
| Hazardous-waste site proximity | 42 | well below the reference |
| Underground storage tanks | 96 | near the reference |
| NPDES wastewater proximity | 61 | 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 2020-01-01 → 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.