Drinking water quality · 2023
· Verified
· PWSID KS2017303
What's in Overland Park, KS tap water
2 contaminants in Overland Park, KS's water sat at or above a federal limit, led by Bromate at 1.7x the limit.
- !2 contaminants at or above a federal limit — worst is Bromate at 1.7x
- !3 open monitoring or reporting violations
- !1 contaminant within 20% of a limit
- !15 of 27 core regulated contaminants reported — 12 never appear in this report
+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.
- −35 contaminants at or above a federal limit
- −4 contaminants within 20% of a limit
- −0 open health-based violations
- −9 open monitoring / reporting violations
- −0 health-based violations resolved in the last 5 years
- −6 core regulated contaminants never reported (15/27)
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
- Bromate1.7× the federal limit0–17 ug/L · limit 10 ug/L
Classified as a probable human carcinogen; the EPA sets a strict maximum contaminant level.
higher than 95% of U.S. systems
- PFOS (Perfluorooctane sulfonic acid)1.1× the federal limit4.5 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 55% of U.S. systems
- Chloramine95% of the federal limit2–3.8 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 85% of U.S. systems
+40 contaminants were measured and came in below the limitShow all
| Contaminant | Measured | Federal limit |
|---|---|---|
| PFHxS (Perfluorohexane sulfonic acid) | 7.2 ng/L | 10 ng/L |
| TTHM | 2.1–47 ug/L | 80 ug/L |
| Lead | 6.5 ug/L | 15 ug/L |
| HAA5 | 2.5–18 ug/L | 60 ug/L |
| Turbidity | 0.24 NTU | 1 NTU |
| Nitrate | 2.1 mg/L | 10 mg/L |
| Combined Radium | 0.85 pCi/L | 5 pCi/L |
| Dichloroacetic acid | 8 ug/L | 60 ug/L |
| Arsenic | 1.3 ug/L | 10 ug/L |
| Fluoride | 0.5 mg/L | 4 mg/L |
| Selenium | 3.5 ug/L | 50 ug/L |
| Barium | 0.01–0.08 mg/L | 2 mg/L |
| Chromium | 2.6 ug/L | 100 ug/L |
| Uranium | 0.44 ug/L | 30 ug/L |
| Copper | 3.2 ug/L | 1300 ug/L |
| Bromodichloromethane | 4.1 ug/L | — |
| Chloroform | 18.3 ug/L | — |
| Bromide | 59 ug/L | — |
| Chloride | 31 mg/L | — |
| Sulfate | 177 mg/L | — |
| Aluminum | 4.9 ug/L | — |
| Calcium | 36 mg/L | — |
| Magnesium | 12 mg/L | — |
| Nickel | 1.5 ug/L | — |
| Potassium | 7.4 mg/L | — |
| Silica | 10 mg/L | — |
| Sodium | 54 mg/L | — |
| Zinc | 6.6 ug/L | — |
| Total Coliform | 0–0.42 % | 0 % |
| Alkalinity | 66 mg/L | — |
| Hardness | 137 mg/L | — |
| Odor | 3 | — |
| pH | 9.6 | — |
| Specific Conductance | 510 | — |
| TOC | 3 mg/L | — |
| Total Dissolved Solids | 430 mg/L | — |
| Gross Beta Particle Activity | 5.5 pCi/L | — |
| PFBS | 6.2 ng/L | — |
| PFHxA | 6 ng/L | — |
| PFPeA | 4.8999999999999995 ng/L | — |
What this report doesn't tell you
12 of the 27 contaminants a community water system normally reports do not appear anywhere in Overland Park, KS'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)
1 PFAS compound above EPA limits in Overland Park, KS
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 (1.1×)PFHxS (Perfluorohexane sulfonic acid)
● Below limitPFBS
● Detected (no federal limit)PFHxA
● Detected (no federal limit)PFPeA
● Detected (no federal limit)Where your water comes from · EPA SDWIS
Overland Park, KS buys its drinking water from WICHITA, CITY OF, CHISHOLM CREEK UTILITY AUTHORITY.
Source
Treatment
Distribution
Also buys water from WICHITA, CITY OF, CHISHOLM CREEK UTILITY AUTHORITY.
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-based1 violation on record · most recent Aug 2007resolved
- Other2 violations on record · most recent Dec 20232 open
- Monitoring & reporting1 violation on record · most recent Oct 20211 open
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗