Drinking water quality · 2024
· Verified
What's in Shreveport, LA tap water
3 contaminants in Shreveport, LA's water sat at or above a federal limit, led by Chlorite at 1.7x the limit.
- !3 contaminants at or above a federal limit — worst is Chlorite at 1.7x
- !11 of 27 core regulated contaminants reported — 16 never appear in this report
- ✓No open federal violations
+How this score is calculated
Every system starts at 100. Points come off for measured levels, for the federal violation record, and for how much of the core regulated set the utility actually reported. All three inputs are the utility's own published numbers and EPA's own records.
- −52 contaminants at or above a federal limit
- −0 contaminants within 20% of a limit
- −0 open health-based violations
- −0 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −13 core regulated contaminants never reported (11/27)
A 90–100 · B 80–89 · C 70–79 · D 60–69 · F below 60. A system reporting under a third of the core set is capped at C however clean its numbers look — a short report is not a clean bill of health.
Full grading methodology, constant for constant →What to worry about
- Chlorite1.7× the federal limit0–1.7 mg/L · limit 1 mg/L
higher than 95% of U.S. systems
- Chloramine1.4× the federal limit0.5–5.6 mg/L · limit 4 mg/L
Holds disinfection further into the pipe network, but is regulated under the same residual-disinfectant cap as chlorine.
higher than 95% of U.S. systems
- TTHM1.1× the federal limit12–85 ug/L · limit 80 ug/L
Long-term exposure above the federal limit is linked to liver, kidney, and central-nervous-system effects and increased cancer risk.
higher than 95% of U.S. systems
+12 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| HAA5 | 5–44 ug/L | 60 ug/L |
| Fluoride | 2.74 mg/L | 4 mg/L |
| Lead | 1–6 ug/L | 15 ug/L |
| Chlorine | 570 ug/L | 4000 ug/L |
| Arsenic | 1.3 ug/L | 10 ug/L |
| Copper | 0–0.1 mg/L | 1.3 mg/L |
| Combined Radium | 0.368 pCi/L | 5 pCi/L |
| Atrazine | 0.035 ug/L | 3 ug/L |
| Hexachlorocyclopentadiene | 0.079 ug/L | 50 ug/L |
| Total Coliform | 0 % | — |
| PFBA | 6.43 ng/L | — |
| Turbidity | 39 % | — |
What this report doesn't tell you
16 of the 27 contaminants a community water system normally reports do not appear anywhere in Shreveport, LA's data. Absent is not the same as absent-from-the-water — it means nobody published a number.