Drinking water quality · 2024
What's in Olathe, KS tap water
11 contaminants were measured in the Olathe, KS water system's 2024 annual report. Each is shown below against its federal limit.
- Reporting year
- 2024
- Contaminants measured
- 11
- Over federal limit
- 0
- Approaching the limit
- 0
- Service area
- KS
Where your water comes from · EPA SDWIS
Olathe, KS's drinking water comes from ground water, drawn from 18 sources.
Source
- WELL · 17
- HAB RIVER
Treatment
- TP003
Distribution
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.
- Treatment technique violationHealth-based4 violations on record · most recent Mar 2011resolved
- Maximum contaminant level exceededHealth-based1 violation on record · most recent Aug 1992resolved
Source: EPA SDWIS / ECHO. View the full federal record on EPA ECHO ↗
Metals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| LeadA toxic metal that leaches into water from old service lines, solder, and plumbing fixtures. | 11 ug/L90th percentileAt the tap | None set | Within the limit |
| CopperA metal that enters water from corroding household plumbing. | 0.338 mg/L90th percentileAt the tap | 1.3 mg/LAction level | Within the limit |
| BariumA metal from erosion of natural deposits and industrial discharge. | 0.072 mg/LHighest single sampleSystem-wide | 2 mg/LMCL | Within the limit |
| SeleniumA trace element from natural deposits and industrial discharge. | 1.4 ug/LHighest single sampleSystem-wide | None set | Within the limit |
| LithiumA naturally occurring element found in some groundwater. | 20.7 ug/LReported levelSystem-wide | None set | Detected — no federal limit |
Disinfection byproducts
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| TTHMTotal trihalomethanes — a group of four chemicals (including chloroform) formed when chlorine reacts with natural organic matter. | 44 ug/LRunning annual avgSystem-wide | None set | Within the limit |
| HAA5Haloacetic acids — a group of five disinfection byproducts formed when disinfectants react with organic matter. | 20 ug/LRunning annual avgSystem-wide | None set | Within the limit |
Inorganic chemicals
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| FluorideA mineral often added to drinking water to help prevent tooth decay. | 0.795 mg/LHighest single sampleSystem-wide | 4 mg/LMCL | Within the limit |
Other
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Nitrate Nitrite | 0.62 mg/LHighest single sampleSystem-wide | 10 mg/LMCL | Within the limit |
| Chromium | 2.1 ug/LHighest single sampleSystem-wide | None set | Within the limit |
Microbial
| Contaminant | Measured | Federal limit | Status |
|---|---|---|---|
| Total ColiformA group of bacteria used as an indicator of overall water-system sanitation. | 0.75 %Reported levelSystem-wide | None set | Detected — no federal limit |
People also ask about Olathe, KS's water
+Is Olathe, KS tap water safe to drink in 2024?
Every one of the 11 contaminants measured in Olathe, KS's 2024 Consumer Confidence Report is below its federal limit. "Safe" under the EPA's drinking-water standards is health-based, not aesthetic — but by those standards, no measured contaminant in this report exceeds its enforceable threshold. Individual health concerns (e.g. immunocompromised, infant, pregnancy) may warrant additional filtering regardless of compliance.
+What contaminants are in Olathe, KS tap water?
11 contaminants were measured in Olathe, KS's 2024 Consumer Confidence Report, spanning metals, disinfection byproducts, and other. 4 have an enforceable federal limit; the rest are detected but unregulated. Every measured value, in the utility's own units, is on this page.
+Where does the data on this page come from?
Every value is transcribed from Olathe, KS's 2024 Consumer Confidence Report — the annual drinking-water report every U.S. public water utility is required by federal law to publish. The original source document is archived and viewable on this site. A water-quality report covers an entire service area, not a single address.
+How often is Olathe, KS's water quality data updated?
Each U.S. public water utility publishes one Consumer Confidence Report per year, covering the prior calendar year's measurements. This page reflects the 2024 report; a new report will replace it once the utility publishes its next annual update.