Contaminant 7000
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
PWSID CA3600071 · GroundwaterPrivate
84 people served. 1 health-based SDWIS violation recorded in the past 5 years. 31 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 Inorganic Chemical Rules violation cited in 2024 (contaminant 5200).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5200).
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.
OTHER
Treatment technique violation
Reporting failure
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
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
OTHER; returned to compliance
OTHER; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
OTHER; returned to compliance
OTHER; 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
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
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
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
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
Monitoring failure
Monitoring failure; returned to compliance
Monitoring failure; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
Adelanto, California (Census place; block-group disparity scores aggregated by centroid containment): a service population of 37,960. Local disparity score for pm2.5 (fine particulate) sits severely above the reference burden (221). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 221 | severely above the reference burden |
| Ozone | 257 | severely above the reference burden |
| Nitrogen dioxide (NO₂) | 127 | moderately above the reference |
| Diesel particulate | 94 | near the reference |
| Toxic releases (RSEI) | 49 | well below the reference |
| Traffic proximity | 94 | near the reference |
| Lead-paint risk (pre-1960 housing) | 57 | below the reference |
| Superfund site proximity | 201 | severely above the reference burden |
| RMP-facility proximity | 4 | well below the reference |
| Hazardous-waste site proximity | 157 | well above the reference burden |
| Underground storage tanks | 0 | well below the reference |
| NPDES wastewater proximity | 147 | moderately above 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.