Contaminant 5000
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (contaminant 5000).
PWSID WA53AC141 · GroundwaterPrivate
1,165 people served. 3 health-based SDWIS violations recorded in the past 5 years. 7 remain unresolved. Last cited 1 year ago.
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (contaminant 5000).
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
Unresolved Revised Total Coliform Rule violation cited in 2023 (contaminant 8000).
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
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Maximum contaminant level exceeded; returned to compliance
Maximum contaminant level exceeded
Maximum contaminant level exceeded; returned to compliance
Brewster, Washington (Census place; block-group disparity scores aggregated by centroid containment): a service population of 2,241. Local disparity score for pm2.5 (fine particulate) sits severely above the reference burden (271). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 271 | severely above the reference burden |
| Ozone | 55 | below the reference |
| Nitrogen dioxide (NO₂) | 280 | severely above the reference burden |
| Diesel particulate | 12 | well below the reference |
| Toxic releases (RSEI) | 0 | well below the reference |
| Traffic proximity | 37 | well below the reference |
| Lead-paint risk (pre-1960 housing) | 207 | severely above the reference burden |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 280 | severely above the reference burden |
| Hazardous-waste site proximity | 0 | well below the reference |
| Underground storage tanks | 216 | severely above the reference burden |
| NPDES wastewater proximity | 24 | well below the reference |
| Drinking-water non-compliance | 295 | severely 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.