Water Quality in Shawnee Mission, KS: No Violations — Grade D
Grade D · Score 40/100 · 1 water system · Updated 2026-05-03
Shawnee Mission's water has significant violations. Water testing and filtration are recommended.
Data: EPA Safe Drinking Water Information System (SDWIS) Last verified: 2026-05-03
Shawnee Mission, KS has zero reported violations — 1 water system, all compliant.
Water Quality by ZIP Code in Shawnee Mission
Water quality varies across Shawnee Mission's 2 ZIP codes. Check your specific ZIP for detailed contaminant data.
| ZIP Code | Grade | Score | Violations | Health | |
|---|---|---|---|---|---|
| 66250 | D | 40 | 0 | 0 | View report → |
| 66276 | D | 40 | 0 | 0 | View report → |
Water Quality Overview
Shawnee Mission, Kansas receives a water quality grade of D with an overall score of 40 out of 100, based on EPA compliance data from the Safe Drinking Water Information System (SDWIS).
No EPA violations have been recorded for the 1 water system serving Shawnee Mission. This is a positive indicator, though it does not guarantee the absence of all contaminants — some substances (like PFAS) are not yet fully regulated.
What Grade D Means
A grade of D indicates significant compliance issues. Shawnee Mission's water systems have accumulated violations that suggest ongoing water quality challenges. Residents should check their specific ZIP code report and consider water testing or filtration.
Lead Levels
Lead testing data for Shawnee Mission is currently being collected. The EPA requires all community water systems to test for lead under the Lead and Copper Rule.
Radon Risk
Shawnee Mission is in EPA Radon Zone 1 (High risk). The EPA recommends all homes in Zone 1 areas be tested for radon. Radon is the second leading cause of lung cancer after smoking.
Water Systems Serving Shawnee Mission
Shawnee Mission is served by 1 community water system regulated under the Safe Drinking Water Act. These systems collectively serve approximately 143,014 people across 2 ZIP codes.
Each water system is identified by a Public Water System ID (PWSID) and is required to:
- Test for over 90 regulated contaminants on a regular schedule
- Report results to the EPA and state regulators
- Issue an annual Consumer Confidence Report (CCR) to all customers
- Take corrective action when violations occur
How to Check Your Water in Shawnee Mission
Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels, violation history, and safety scores
Request your CCR — your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants
Get a home test — certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel
Consider filtration — NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics
Check for advisories — monitor your local utility website and local news for boil water advisories or system alerts
Shawnee Mission vs. Nearby Kansas Cities
How Shawnee Mission's water quality compares to similar cities in Kansas:
| City | Grade | Violations | Systems | Population |
|---|---|---|---|---|
| Shawnee Mission | D | 0 | 1 | 143,014 |
| Lenexa | D | 0 | 1 | 143,014 |
| Olathe | D | 12 | 1 | 143,014 |
| Stilwell | D | 0 | 1 | 143,014 |
Common Questions About Shawnee Mission Water
These are the most common questions residents search for about water quality in Shawnee Mission, Kansas:
Is Shawnee Mission water hard or soft? Water hardness varies by source. Shawnee Mission's 1 water system uses a single source. Check your ZIP code report for specific hardness data.
Can I drink Shawnee Mission tap water? Shawnee Mission's water receives a grade of D (40/100). No health-based violations have been recorded, but home testing is always recommended.
What is the best water filter for Shawnee Mission? A NSF/ANSI 53-certified filter for lead removal is a good general choice. See our Water Filter Matcher for personalized recommendations.
Shawnee Mission vs. Kansas Average
Understanding how Shawnee Mission compares to the broader Kansas average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.
To see how individual neighborhoods compare, check the ZIP code reports below — water quality can vary significantly even within Shawnee Mission.
ZIP Codes in Shawnee Mission
Shawnee Mission spans 2 ZIP codes. Each ZIP code has its own water quality profile based on the specific water system serving that area. Check each ZIP code for detailed contaminant data, violation history, and system information.
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
- Enforcement: EPA ECHO database
- Filter recommendations: NSF/ANSI certified products
Updated daily.