Haloacetic Acids (HAA5)
Unresolved Total Trihalomethanes Rule violation cited in 2024 (haloacetic acids (haa5)).
PWSID LA1017019 · Purchased / wholesalePrivate
2,025 people served. 8 health-based SDWIS violations recorded in the past 5 years. 8 remain unresolved. Last cited 2 years ago.
Unresolved Total Trihalomethanes Rule violation cited in 2024 (haloacetic acids (haa5)).
Unresolved Phase I/II/V Inorganic Chemical Rules violation cited in 2024 (contaminant 5200).
Unresolved Total Trihalomethanes Rule violation cited in 2023 (haloacetic acids (haa5)).
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.
Maximum contaminant level exceeded
Reporting failure; returned to compliance
Reporting failure; returned to compliance
Treatment technique violation
Maximum contaminant level exceeded
Maximum contaminant level exceeded
Maximum contaminant level exceeded
Maximum contaminant level exceeded
Maximum contaminant level exceeded
Maximum contaminant level exceeded
Shreveport, Louisiana (Census place; block-group disparity scores aggregated by centroid containment): a service population of 186,183. Local disparity score for pm2.5 (fine particulate) sits well above the reference burden (172). Why we surface this →
Low-income
People of color
Under age 5
Over age 64
| Indicator | Disparity score | Reading |
|---|---|---|
| PM2.5 (fine particulate) | 172 | well above the reference burden |
| Ozone | 43 | well below the reference |
| Nitrogen dioxide (NO₂) | 108 | near the reference |
| Diesel particulate | 103 | near the reference |
| Toxic releases (RSEI) | 158 | well above the reference burden |
| Traffic proximity | 81 | below the reference |
| Lead-paint risk (pre-1960 housing) | 111 | moderately above the reference |
| Superfund site proximity | 94 | near the reference |
| RMP-facility proximity | 49 | well below the reference |
| Hazardous-waste site proximity | 127 | moderately above the reference |
| Underground storage tanks | 135 | moderately above the reference |
| NPDES wastewater proximity | 215 | severely above the reference burden |
| Drinking-water non-compliance | 202 | 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 2023-01-01 → 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.