Chlorine
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (chlorine).
PWSID OK3000501 · Purchased / wholesaleMunicipal
330 people served. No health-based SDWIS violations recorded in the past 5 years. 2 remain unresolved. Last cited 3 years ago.
Unresolved Disinfectants and Disinfection Byproducts (Stage 2) violation cited in 2023 (chlorine).
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
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
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
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; 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
Monitoring failure; returned to compliance
Beckham County, Oklahoma (utility's served county per SDWIS GEOGRAPHIC_AREA — city-level not yet matched): a service population of 22,295. Local disparity score for pm2.5 (fine particulate) sits well below the reference (23). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 23 | well below the reference |
| Ozone | 109 | near the reference |
| Nitrogen dioxide (NO₂) | 59 | below the reference |
| Diesel particulate | 25 | well below the reference |
| Toxic releases (RSEI) | 0 | well below the reference |
| Traffic proximity | 20 | well below the reference |
| Lead-paint risk (pre-1960 housing) | 66 | below the reference |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 0 | well below the reference |
| Hazardous-waste site proximity | 0 | well below the reference |
| Underground storage tanks | 66 | below the reference |
| NPDES wastewater proximity | 8 | well below the reference |
| Drinking-water non-compliance | 67 | 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 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.