Contaminant 5000
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (contaminant 5000).
PWSID LA2015021 · GroundwaterPrivate
225 people served. 6 health-based SDWIS violations recorded in the past 5 years. 16 remain unresolved. Last cited 1 year ago.
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2025 (contaminant 5000).
Unresolved Phase I/II/V Synthetic Organic Chemical Rules violation cited in 2025 (contaminant 7000).
Unresolved Volatile Organic Chemical Rule violation cited in 2025 (contaminant 7500).
Unresolved Volatile Organic Chemical Rule violation cited in 2024 (contaminant 7500).
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
OTHER
OTHER
Treatment technique violation; returned to compliance
OTHER
OTHER
Treatment technique violation
Treatment technique violation
Treatment technique violation
OTHER
Reporting failure; returned to compliance
Treatment technique violation; returned to compliance
OTHER
Failure to monitor as scheduled
OTHER
Failure to monitor as scheduled; returned to compliance
OTHER
OTHER
Failure to monitor as scheduled; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER; returned to compliance
OTHER
OTHER; returned to compliance
OTHER; returned to compliance
Failure to monitor as scheduled; returned to compliance
Treatment technique violation; returned to compliance
Failure to monitor as scheduled
Failure to monitor as scheduled; returned to compliance
Bossier City, Louisiana (Census place; block-group disparity scores aggregated by centroid containment): a service population of 62,971. Local disparity score for pm2.5 (fine particulate) sits moderately above the reference (141). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 141 | moderately above the reference |
| Ozone | 36 | well below the reference |
| Nitrogen dioxide (NO₂) | 105 | near the reference |
| Diesel particulate | 77 | below the reference |
| Toxic releases (RSEI) | 126 | moderately above the reference |
| Traffic proximity | 70 | below the reference |
| Lead-paint risk (pre-1960 housing) | 79 | below the reference |
| Superfund site proximity | 149 | moderately above the reference |
| RMP-facility proximity | 91 | near the reference |
| Hazardous-waste site proximity | 102 | near the reference |
| Underground storage tanks | 119 | moderately above the reference |
| NPDES wastewater proximity | 122 | moderately above the reference |
| Drinking-water non-compliance | 5 | 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.