Tap water · OK
City of Tulsa Water
EPA system ID OK1020418 · serves about 413,000 people. Every US utility must publish an annual water quality report — here’s the official one (2025), and below it, our plain-English translation.
Read the official report →What City of Tulsa Water found in 2025
15 detected analytes from the utility’s own annual report, hand-normalized — nothing was near or over a federal health-based limit.
| Detected | Level | Limit | % of limit | Status |
|---|---|---|---|---|
| Chloramine as Chlorine | 2.5 ppm | 4 ppm | 63% | Within limit |
| Total Trihalomethanes | 39 ppb | 80 ppb | 49% | Within limit |
| Haloacetic Acids | 24 ppb | 60 ppb | 40% | Within limit |
| Chlorite | 0.251 ppm | 1 ppm | 25% | Within limit |
| Copper (90th percentile) | 0.304 ppm | 1.3 ppm | 23% | Within limit |
| Fluoride | 0.68 ppm | 4 ppm | 17% | Within limit |
| Atrazine | 0.378 ppb* | 3 ppb* | 13% | Within limit |
| Sulfate | 24.5 ppm | 250 ppm | 10% | Within limit |
| Lead (90th percentile) | 1.2 ppb | 15 ppb | 8% | Within limit |
| Chloride | 13.9 ppm | 250 ppm | 6% | Within limit |
| Barium | 0.057 ppm* | 2 ppm* | 3% | Within limit |
| Sodium | 10.3 ppm | — | — | No federal limit |
| Total Organic Carbon | 1.06 N/A | — | — | No federal limit |
| Coliform Bacteria | 0.55 % | — | — | No federal limit |
| Nitrate/Nitrite Total | 0.31 ppm | — | — | No federal limit |
Levels and limits are as printed in the utility’s report (“limit” is the EPA MCL, action level, residual limit, or secondary guideline that applies to that row; “ND” = not detected). Utilities publish these reports annually — we re-check every covered utility each July, after the federal publication deadline. Detected doesn’t mean dangerous — most detections sit far below their limits. This is education, not medical advice.
Your tap, if it were a bottle
How City of Tulsa Water water stacks up against the bottled aisle
Same minerals, same units — the tap values below come from the utility’s report, placed next to the closest match in our bottled-water database.
| Mineral | Your tap | Closest bottled match |
|---|---|---|
| Sodium | 10.3 mg/L | Summit Spring at 10 mg/L |
| Sulfate | 24.5 mg/L | Borjomi at 25 mg/L |
| Chloride | 13.9 mg/L | Ty Nant at 14 mg/L |
Tap values are the headline levels from the utility’s annual report (often a highest or average figure); bottled values are label- or report-derived. A closest match is a numeric comparison, not an equivalence or an endorsement.
Zip codes covered
74103 · 74104 · 74105 · 74106 · 74108 · 74110 · 74112 · 74114 · 74115 · 74119 · 74120 · 74127 · 74128 · 74129 · 74132 · 74133 · 74134 · 74135 · 74136 · 74137 · 74145 · 74146
Boundary zips partially served by other systems are deliberately unlisted — check your exact zip.