Chlorine
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (chlorine).
PWSID PA5040010 · Purchased / wholesaleMunicipal
4,578 people served. 1 health-based SDWIS violation recorded in the past 5 years. 16 remain unresolved. Last cited this year.
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (chlorine).
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (chlorine).
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (chlorine).
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (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.
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Treatment technique violation; returned to compliance
Reporting failure; returned to compliance
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; 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; returned to compliance
Failure to monitor as scheduled
Monitoring failure
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER
OTHER; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Reporting failure; returned to compliance
Reporting failure; returned to compliance
Reporting failure; 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; 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
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; 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
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
Beaver Falls, Pennsylvania (Census place; block-group disparity scores aggregated by centroid containment): a service population of 8,934. Local disparity score for pm2.5 (fine particulate) sits near the reference (110). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 110 | near the reference |
| Ozone | 131 | moderately above the reference |
| Nitrogen dioxide (NO₂) | 66 | below the reference |
| Diesel particulate | 66 | below the reference |
| Toxic releases (RSEI) | 159 | well above the reference burden |
| Traffic proximity | 64 | below the reference |
| Lead-paint risk (pre-1960 housing) | 152 | well above the reference burden |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 116 | moderately above the reference |
| Hazardous-waste site proximity | 113 | moderately above the reference |
| Underground storage tanks | 105 | near the reference |
| NPDES wastewater proximity | 135 | moderately above the reference |
| Drinking-water non-compliance | 138 | moderately above 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.