Contaminant 0200
Unresolved Surface Water Treatment Rule violation cited in 2022 (contaminant 0200).
PWSID PA5020056 · Surface waterMunicipal
125,000 people served. 2 health-based SDWIS violations recorded in the past 5 years. 8 remain unresolved. Last cited 1 year ago.
Unresolved Surface Water Treatment Rule violation cited in 2022 (contaminant 0200).
Unresolved Surface Water Treatment Rule violation cited in 2022 (contaminant 0200).
Unresolved Surface Water Treatment Rule violation cited in 2022 (contaminant 0200).
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2022 (chlorine).
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; returned to compliance
Maximum contaminant level exceeded; returned to compliance
Maximum contaminant level exceeded; returned to compliance
Failure to monitor as scheduled
Failure to monitor as scheduled; 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; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Wilkinsburg, Pennsylvania (Census place; block-group disparity scores aggregated by centroid containment): a service population of 14,340. Local disparity score for pm2.5 (fine particulate) sits well above the reference burden (154). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 154 | well above the reference burden |
| Ozone | 162 | well above the reference burden |
| Nitrogen dioxide (NO₂) | 115 | moderately above the reference |
| Diesel particulate | 141 | moderately above the reference |
| Toxic releases (RSEI) | 155 | well above the reference burden |
| Traffic proximity | 150 | moderately above the reference |
| Lead-paint risk (pre-1960 housing) | 170 | well above the reference burden |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 159 | well above the reference burden |
| Hazardous-waste site proximity | 144 | moderately above the reference |
| Underground storage tanks | 155 | well above the reference burden |
| NPDES wastewater proximity | 130 | moderately above the reference |
| Drinking-water non-compliance | 170 | well above the reference burden |
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.