Drinking water quality · 2024
· Verified
· PWSID OK1021508
What's in Broken Arrow, OK tap water
2 contaminants in Broken Arrow, OK's water sat at or above a federal limit, led by PFOS (Perfluorooctane sulfonic acid) at 12.8x the limit.
- !2 contaminants at or above a federal limit — worst is PFOS (Perfluorooctane sulfonic acid) at 12.8x
- !1 contaminant within 20% of a limit
- !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.
- −55 contaminants at or above a federal limit
- −4 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
- PFOS (Perfluorooctane sulfonic acid)12.8× the federal limit51.3 ng/L · limit 4 ng/L
Linked to cancer, thyroid disease, and immune effects; the EPA set an enforceable limit of 4 parts per trillion.
higher than 95% of U.S. systems
- PFHxS (Perfluorohexane sulfonic acid)1.5× the federal limit15.2 ng/L · limit 10 ng/L
Regulated by the EPA at 10 parts per trillion and included in the PFAS Hazard Index.
higher than 90% of U.S. systems
- TTHM80% of the federal limit64 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 85% of U.S. systems
+20 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| HAA5 | 31 ug/L | 60 ug/L |
| Simazine | 1.16 ug/L | 4 ug/L |
| Copper | 0.323 mg/L | 1.3 mg/L |
| Combined Radium | 1.146 pCi/L | 5 pCi/L |
| Fluoride | 0.78 mg/L | 4 mg/L |
| Atrazine | 0.217–0.511 ug/L | 3 ug/L |
| Barium | 0.048 mg/L | 2 mg/L |
| Nitrate Nitrite | 0.24 mg/L | 10 mg/L |
| Nitrate | 0.08 mg/L | 10 mg/L |
| Lead | 0.0 mg/L | 0.015 mg/L |
| Sodium | 33.8 mg/L | — |
| Escherichia coli (E. coli) | 1 | — |
| Total Coliform | 2 % | — |
| Alkalinity | 101.7 mg/L | — |
| TOC | 1.12 mg/L | — |
| Gross Beta Particle Activity | 3.88 pCi/L | — |
| PFBA | 6.4 ng/L | — |
| PFPeA | 6.5 ng/L | — |
| PFBS | 4.5 ng/L | — |
| PFHxA | 6.8999999999999995 ng/L | — |
What this report doesn't tell you
16 of the 27 contaminants a community water system normally reports do not appear anywhere in Broken Arrow, OK's data. Absent is not the same as absent-from-the-water — it means nobody published a number.
+Full detail: PFAS testing, water source, historical monitoring, and the federal violation record
PFAS — EPA UCMR5 (2023–2025)
2 PFAS compounds above EPA limits in Broken Arrow, OK
The EPA finalized the first-ever federal drinking-water limits for six PFAS compounds in April 2024. These numbers come straight from EPA's UCMR5 lab dataset — every U.S. system serving more than 3,300 people tested every PFAS sample at an entry point to its distribution system. PFAS not listed below were either tested and not detected, or not yet sampled.
PFOS (Perfluorooctane sulfonic acid)
● Over EPA limit (12.8×)PFHxS (Perfluorohexane sulfonic acid)
● Over EPA limit (1.5×)PFBA
● Detected (no federal limit)PFPeA
● Detected (no federal limit)PFBS
● Detected (no federal limit)PFHxA
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Broken Arrow, OK's drinking water comes from surface water, drawn from 1 source.
Source
- VERDIGRIS RIVER
Treatment
- BROKEN ARROW NEW WTP
- CL2 AFTER CLEARWELL
Distribution
Also buys water from TULSA.
Compliance history
Federal Safe Drinking Water Act violation & enforcement records (EPA SDWIS). A violation is a regulatory determination by the state or EPA — separate from the measured levels above.
- Maximum contaminant level exceededHealth-based22 violations on record · most recent Sep 2013resolved
- Treatment technique violationHealth-based5 violations on record · most recent Jul 2010resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗