Contaminant 7000
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
PWSID AZ0411365 · GroundwaterPrivate
200 people served. 4 health-based SDWIS violations recorded in the past 5 years. 4 remain unresolved. Last cited 1 year ago.
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
Unresolved Total Trihalomethanes Rule violation cited in 2023 (total trihalomethanes (tthm)).
Unresolved Total Trihalomethanes Rule violation cited in 2023 (haloacetic acids (haa5)).
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
OTHER
Reporting failure; returned to compliance
Reporting failure; returned to compliance
Reporting failure; returned to compliance
Reporting failure; returned to compliance
Treatment technique violation; returned to compliance
Treatment technique violation; 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
Treatment technique violation; returned to compliance
Treatment technique violation; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER; 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
Coolidge, Arizona (Census place; block-group disparity scores aggregated by centroid containment): a service population of 14,175. Local disparity score for pm2.5 (fine particulate) sits well below the reference (44). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 44 | well below the reference |
| Ozone | 185 | well above the reference burden |
| Nitrogen dioxide (NO₂) | 96 | near the reference |
| Diesel particulate | 77 | below the reference |
| Toxic releases (RSEI) | 32 | well below the reference |
| Traffic proximity | 51 | below the reference |
| Lead-paint risk (pre-1960 housing) | 72 | below the reference |
| Superfund site proximity | 0 | well below the reference |
| RMP-facility proximity | 0 | well below the reference |
| Hazardous-waste site proximity | 94 | near the reference |
| Underground storage tanks | 130 | moderately above the reference |
| NPDES wastewater proximity | 100 | near the reference |
| Drinking-water non-compliance | 22 | 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 2021-01-01 → 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.