Water Quality Report · Updated October 07, 2026
LEES SUMMIT PWS
LEES SUMMIT PWS delivers tap water graded B (79/100) by TapWaterSafety.org. The utility serves approximately 99,400 residents in LEES SUMMIT, Missouri using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Chromium (hexavalent) significantly above health guideline. For questions, the utility can be reached at 816-969-1922.
Is LEES SUMMIT tap water safe to drink?
LEES SUMMIT PWS delivers tap water that earns a grade of B (79/100) from TapWaterSafety.org — a good rating, with only minor concerns relative to health-based guidelines.
The utility serves 99,400 residents in LEES SUMMIT, drawing from surface water (purchased).
Public testing data identifies 8 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Haloacetic acids (HAA5), Chromium (hexavalent), Dichloroacetic acid, Total trihalomethanes (TTHMs), Chloroform, Bromodichloromethane, Trichloroacetic acid. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.
EPA compliance record
Official U.S. EPA records for LEES SUMMIT PWS (system ID MO1010459) for the last 3 years. Checked 2026-10-07.
| Rule | Type | Since | Status |
|---|---|---|---|
| Public Notice Rule and Revised PN Rule | Other (e.g. public notice) | 06/28/2023 | Open |
| Revised Total Coliform Rule | Missed testing | 05/01/2024 | Open |
Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.
Quick actions for LEES SUMMIT residents
Top concerns in this water
Based on the most recent EPA and EWG data, these are the most significant water quality issues for LEES SUMMIT PWS.
Haloacetic acids (HAA9) significantly above health guideline
Moderate concernHaloacetic acids (HAA9) detected at 8.13 ppb, 136x above the EWG health guideline of 0.06 ppb.
Haloacetic acids (HAA5) significantly above health guideline
Moderate concernHaloacetic acids (HAA5) detected at 8.76 ppb, 88x above the EWG health guideline of 0.1 ppb.
Chromium (hexavalent) significantly above health guideline
Moderate concernChromium (hexavalent) detected at 1.75 ppb, 87x above the EWG health guideline of 0.02 ppb.
Contact LEES SUMMIT PWS
Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.
General Contact
Recommended water filters for LEES SUMMIT
Filters matched to the specific contaminants in this 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.
Score breakdown
This utility's overall score of 79/100 breaks down across five weighted components. Read the full methodology →
Contaminants detected — international standards comparison
Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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 |
8.13 ppb | 0.06 | — | — | — | — | — | 136× over |
| Haloacetic acids (HAA5) Disinfection byproduct |
8.76 ppb | 0.1 | 60.0 | 60 | — | — | — | 88× over |
| Chromium (hexavalent) Heavy metal |
1.75 ppb | 0.02 | — | — | — | — | — | 87× over |
| Dichloroacetic acid Disinfection byproduct |
8.33 ppb | 0.2 | — | — | — | — | — | 42× over |
| Total trihalomethanes (TTHMs) Disinfection byproduct |
5.17 ppb | 0.15 | 80.0 | 100 | — | — | — | 34× over |
| Chloroform Disinfection byproduct |
4.57 ppb | 0.4 | — | — | — | — | — | 11× over |
| Bromodichloromethane Disinfection byproduct |
0.602 ppb | 0.06 | — | — | — | — | — | 10× over |
| Trichloroacetic acid Disinfection byproduct |
0.432 ppb | 0.1 | — | — | — | — | — | 4.3× over |
| Vanadium Other |
1.68 ppb | 21.0 | — | — | — | — | — | Below guideline |
| Molybdenum Other |
3.11 ppb | 40.0 | — | — | — | — | — | Below guideline |
| Manganese Heavy metal |
0.428 ppb | 100.0 | — | 50 | 80 | — | — | Below guideline |
| Strontium Radiological |
0.205 ppb | 1500.0 | — | — | — | — | — | Below guideline |
| Lithium Other |
38.3 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.
LEES SUMMIT PWS service area
This water system serves 1 community in Jackson County, Missouri. Click any city for its dedicated tap water quality page.
Find the right filter for LEES SUMMIT water
Browse filter categories by water-quality concern. Each option below is NSF-certified for the matched contaminant type.