Lees Summit, MO: 42 Violations — 64/100 (2026)
7 ZIP codes · 9 water systems · Updated 2026-06-03
Lees Summit, MO: middle-tier water safety by the latest federal monitoring.
How Lees Summit Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Lees Summit, MO
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Lees Summit's 7 ZIP codes.
Key Facts for Lees Summit Residents
- Your city's water systems recorded 42 violations in the past 5 years.
- Average lead level: 0.0015 mg/L.
- Homes built before 1986: 38% — older plumbing may contain lead solder.
- Estimated remediation: $2,414 per household.
- CDC health risk index: 13.29 — above typical levels.
Lees Summit's Water Providers
Lees Summit, MO draws its residential water from 3 separate providers among the 9 federally tracked systems. Each operates independently, with its own infrastructure, rate structure, and compliance record.
Overview
We track water quality and home safety data for 7 ZIP codes in Lees Summit, Missouri (population ~109,974), covering 9 community water systems serving approximately 828,588 people region-wide.
7 of 7 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Lees Summit: C (64/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Lees Summit water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0015 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 1 (High Risk)
- Zone 1 (High): 7 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 16 | 7 |
| Consumer Confidence Report Rule | Reporting | 16 | 7 |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 8 | 7 |
| Lead and Copper Rule | Treatment Technique | 8 | 7 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 64002 | C | 6 | 0 | Lees Summit Public Water System |
| 64063 | C | 6 | 0 | Lees Summit Public Water System |
| 64064 | C | 6 | 0 | Lees Summit Public Water System |
| 64065 | C | 6 | 0 | Kansas City Public Water System |
| 64081 | C | 6 | 0 | Lees Summit Public Water System |
| 64082 | C | 6 | 0 | Lees Summit Public Water System |
| 64086 | C | 6 | 0 | Lees Summit Public Water System |
All ZIP Codes in Lees Summit
- 64002 [C] — 6 violations
- 64063 [C] — 6 violations
- 64064 [C] — 6 violations
- 64065 [C] — 6 violations
- 64081 [C] — 6 violations
- 64082 [C] — 6 violations
- 64086 [C] — 6 violations
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
Updated daily.
Lees Summit Community Health Snapshot
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
What's in Lees Summit's Water?
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Lees Summit Infrastructure Age
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Tap water lead levels are shaped by two factors: what the utility delivers, and what the household plumbing adds to it. Older homes contribute disproportionately to that second variable because lead solder was standard in copper plumbing before 1986, and lead pipes were common before 1970. In Lees Summit, where the median build year is 1990, a substantial share of the housing stock falls into these older categories. The bar chart above breaks out the pre-1970, 1970-to-1986, and post-1986 segments — the key ages for understanding where plumbing-era risk concentrates across the city.
Most homes in Lees Summit were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
How Remediation Costs Compare in Lees Summit
Placing remediation in the context of Lees Summit's property market, the equity share is low — most homeowners here are weighing a financial commitment that fits comfortably within routine property planning, far from the threshold where remediation becomes a material equity decision rather than a standard upkeep consideration.
Remediation costs in Lees Summit are relatively low compared to home values. The $1,586–$3,357 estimated range is a small fraction of median property value. Home values are 90% above the Missouri average.
Lees Summit: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Pulling a tap sample fills the gap that utility data cannot close, particularly here where 38% of housing dates from the pre-rule era and citywide monitoring sits at or above the regulatory mark in Lees Summit.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Lees Summit: Flood History & Water Damage Risk
Flood exposure in Lees Summit is meaningful by NFIP measures — 96 claims on record and 71% of ZIP codes carrying FEMA flood zone designations. That level of activity makes flood history a relevant factor when evaluating local water quality over time.
Lees Summit has a moderate flood history with 96 FEMA claims averaging $9,551 per payout. 71% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$2,414</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Lees Summit
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. Filters rated for Surface Water Treatment Rule can reduce the most common contaminant found in Lees Summit's water.
- Check your home's plumbing. With 38% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Lees Summit, MO