Contaminant 3028
Unresolved Drinking water rule (140) violation cited in 2024 (contaminant 3028).
PWSID OR4100438 · GroundwaterPrivate
250 people served. No health-based SDWIS violations recorded in the past 5 years. 14 remain unresolved. Last cited 1 year ago.
Unresolved Drinking water rule (140) violation cited in 2024 (contaminant 3028).
Unresolved Drinking water rule (140) violation cited in 2024 (contaminant 3028).
Unresolved Drinking water rule (140) violation cited in 2023 (contaminant 3028).
Unresolved Drinking water rule (140) violation cited in 2023 (contaminant 3028).
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
Failure to monitor as scheduled
Failure to monitor as scheduled
OTHER; returned to compliance
OTHER; 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
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
OTHER; 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
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
Failure to monitor as scheduled
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled
Failure to monitor as scheduled
Klamath Falls, Oregon (Census place; block-group disparity scores aggregated by centroid containment): a service population of 21,806. Local disparity score for pm2.5 (fine particulate) sits well above the reference burden (151). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 151 | well above the reference burden |
| Ozone | 89 | below the reference |
| Nitrogen dioxide (NO₂) | 127 | moderately above the reference |
| Diesel particulate | 50 | well below the reference |
| Toxic releases (RSEI) | 60 | below the reference |
| Traffic proximity | 55 | below the reference |
| Lead-paint risk (pre-1960 housing) | 107 | near the reference |
| Superfund site proximity | 111 | moderately above the reference |
| RMP-facility proximity | 60 | below the reference |
| Hazardous-waste site proximity | 0 | well below the reference |
| Underground storage tanks | 75 | below the reference |
| NPDES wastewater proximity | 41 | well 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.