Tap Water Quality Report
Tap water quality in Kansas City, Missouri
Tap water in Kansas City, Missouri receives a grade of C (75/100) from TapWaterSafety.org. It's served by KANSAS CITY PWS. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Chromium (hexavalent) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.
What's in Kansas City's tap water
Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving Kansas City.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 16.8 ppb, 279x above the EWG health guideline of 0.06 ppb.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 2.53 ppb, 126x above the EWG health guideline of 0.02 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 11.1 ppb, 111x above the EWG health guideline of 0.1 ppb.
EPA compliance record
Official U.S. EPA records for KANSAS CITY PWS (system ID MO1010415) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Lead and Copper Rule | Missed testing or reporting | 07/01/2025 | Open |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Recommended filters for Kansas City
Filters matched to the specific contaminants in Kansas City's water supply.
Carbon filter certified for VOCs (NSF/ANSI 53)
$180-$599Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.
Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.
All contaminants detected in Kansas City's tap water
Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →
| Contaminant | Detected | EWG US health-based |
EPA US legal |
EU DWD Europe |
WHO global |
CA PHG strictest US |
Tested sample year |
Status |
|---|---|---|---|---|---|---|---|---|
| Haloacetic acids (HAA9) Disinfection byproduct |
16.8 ppb | 0.06 | — | — | — | — | — | 279× over |
| Chromium (hexavalent) Heavy metal |
2.53 ppb | 0.02 | — | — | — | — | — | 126× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
11.1 ppb | 0.1 | 60.0 | 60 | — | — | — | 111× over |
| Dichloroacetic acid Disinfection byproduct |
9.87 ppb | 0.2 | — | — | — | — | — | 49× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
6.64 ppb | 0.15 | 80.0 | 100 | — | — | — | 44× over |
| Bromodichloromethane Disinfection byproduct |
0.864 ppb | 0.06 | — | — | — | — | — | 14× over |
| Chloroform Disinfection byproduct |
5.78 ppb | 0.4 | — | — | — | — | — | 14× over |
| Nitrate Inorganic |
1.42 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 10× over |
| Nitrate and nitrite Inorganic |
1.42 ppm | 0.14 | 10.0 | 11.3 | 11.3 | 10 | — | 10× over |
| Trichloroacetic acid Disinfection byproduct |
0.791 ppb | 0.1 | — | — | — | — | — | 7.9× over |
| Dibromoacetic acid Disinfection byproduct |
0.162 ppb | 0.03 | — | — | — | — | — | 5.4× over |
| Atrazine Pesticide/Herbicide |
0.0986 ppb | 0.1 | 3.0 | 0.1 | 100 | 0.15 | — | Below guideline |
| Vanadium Other |
1.93 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
2.95 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Selenium Heavy metal |
1.15 ppb | 30.0 | 50.0 | 20 | 40 | 30 | — | Below guideline |
| Barium Heavy metal |
15.1 ppb | 700.0 | 2000.0 | — | 1300 | 2000 | — | Below guideline |
| Strontium Radiological |
23.8 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Monochloroacetic acid Disinfection byproduct |
0.284 ppb | 53.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
0.07 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Monobromoacetic acid Disinfection byproduct |
0.015 ppb | 25.0 | — | — | — | — | — | Below guideline |
| Fluoride Inorganic |
0.643 ppm | — | 4.0 | 1.5 | 1.5 | — | — | Below guideline |
| Lithium Other |
39.2 ppb | — | — | — | — | — | — | Below guideline |
All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.
Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.
Treatment plant contact info
For service issues, water quality concerns, or to request a Consumer Confidence Report from KANSAS CITY PWS.
General Contact
Treatment Plant
ZIP codes served
Kansas City's public water systems serve the following ZIP codes: