Contaminant 5200
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2026 (contaminant 5200).
PWSID CO0151538 · Purchased / wholesalePrivate
115 people served. 1 health-based SDWIS violation recorded in the past 5 years. 6 remain unresolved. Last cited this year.
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2026 (contaminant 5200).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2026 (contaminant 5200).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2026 (contaminant 5000).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (contaminant 5000).
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.
Treatment technique violation
Reporting failure
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; returned to compliance
Failure to monitor as scheduled; returned to compliance
Failure to monitor as scheduled; returned to compliance
Pueblo, Colorado (Census place; block-group disparity scores aggregated by centroid containment): a service population of 111,430. Local disparity score for pm2.5 (fine particulate) sits well below the reference (10). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 10 | well below the reference |
| Ozone | 176 | well above the reference burden |
| Nitrogen dioxide (NO₂) | 128 | moderately above the reference |
| Diesel particulate | 84 | below the reference |
| Toxic releases (RSEI) | 162 | well above the reference burden |
| Traffic proximity | 103 | near the reference |
| Lead-paint risk (pre-1960 housing) | 121 | moderately above the reference |
| Superfund site proximity | 155 | well above the reference burden |
| RMP-facility proximity | 139 | moderately above the reference |
| Hazardous-waste site proximity | 72 | below the reference |
| Underground storage tanks | 116 | moderately above the reference |
| NPDES wastewater proximity | 176 | well above the reference burden |
| 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 2024-01-01 → 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.