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WaterVerge

Water quality report · updated Jul 2026

Is Lake Lotawana, MO Tap Water Safe to Drink?

Graded A, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do ↓

0 contaminants over a legal limit
0.0 ppb lead, 90th percentile · low
1 unresolved violation
9K people served by 1 water system

PWSID MO1024281 · high data confidence · local government utility

Reviewed by WaterVerge Editorial Team · Last updated July 2026
A 92.8 / 100

#37 of 487Missouri cities
How we grade →

01The verdict: is Lake Lotawana water safe?

Lake Lotawana's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (92.8/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 8,772 residents using groundwater (wells).

The concern

1 unresolved violation on record

EPA records show an open compliance item for this system. Most are administrative, but unresolved items are worth watching.

See what was cited ↓
The good news

Lead is well under the limit

90th-percentile lead is 0.0 ppb — beneath the 15 ppb federal action level and under the 5 ppb watch threshold.

See the trend ↓
Keep watching

lithium is approaching its limit

Measured at 44.0000 µg/L — 120% of the 0.004 µg/L limit. Within the rules, but with less headroom than you'd want.

See the ledger ↓

Lake Lotawana's drinking water received a grade of A (92.8 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 8,772 residents using purchased ground water.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 1 PFAS compound in the water supply. The system has 4 violations on record, including 0 health-based violations. 1 remains unresolved.

Lake Lotawana ranks #37 out of 487 cities in Missouri for water quality, placing it one of the best in the state. Lake Lotawana purchases its water from a regional wholesaler, meaning quality depends on both the supplier's treatment and the local distribution system's condition. PFAS compounds were detected in testing, though levels remain within current EPA limits. Residents seeking extra precaution may consider an activated carbon or reverse osmosis filter.

How the 92.8/100 breaks down Methodology →
ViolationsHistorical violation record including health-based and monitoring violations.
44.6 / 45A
Lead & CopperLead at 0.0 ppb (90th percentile).
20 / 20A
Contaminants1 PFAS compound detected.
18.2 / 20A
ComplianceMonitoring and reporting compliance with EPA regulations.
5 / 10D
Source RiskWater source: Purchased ground water.
5 / 5A

02What's in Lake Lotawana's water

Every contaminant flagged in Lake Lotawana, on one shared scale: distance to its own legal limit. The red line is the limit — anything past it is out of compliance, and the closer a bar gets, the less headroom the system has.

3 detections · sorted by % of legal limit
Over the limit Elevated — watch Within limits
0 50% LEGAL LIMIT 150%
lithium PFAS / Forever Chemical
44.0000 µg/L 120% of limit
Lithium Inorganic
44.0 µg/L 73% of limit
32 contaminants tested under EPA SDWIS, LCR and UCMR programs · 3 detected

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium 44.000 HI µg/L PFAS Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA ND HI µg/L PFAS Not Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA ND 0.004 µg/L PFAS Not Detected
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA ND HI µg/L PFAS Not Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

03Lake Lotawana's ten-year track record

Each box is one year. A green check means no EPA violations; a numbered badge counts that year's violations — red if any were health-based, amber if they were monitoring or paperwork issues. The system has 4 violations on record, including 0 health-based violations. 1 remains unresolved.

All ten of the last ten years were clean — no EPA violations recorded for Lake Lotawana.

PFAS1 PFAS "forever chemical" compound detectedDetected at levels within current EPA limits. PFAS persist indefinitely in the environment.
UpdateWater quality data updatedLatest EPA compliance and testing data incorporated into Lake Lotawana's water quality assessment. Grade: A (92.8/100).
Violation1 drinking water violation recordedContaminants: Coliform (TCR).Resolved
Violation1 drinking water violation recordedContaminants: Coliform (TCR).Resolved
Violation1 drinking water violation recordedContaminants: Coliform (TCR).Resolved
Lead, 90th percentileppb · lower is better
05101520EPA action level · 15 ppb1992 — 0 ppb1993 — 5 ppb1994 — 0 ppb1995 — 0 ppb1998 — 0 ppb2001 — 0 ppb2004 — 1.0 ppb2007 — 1.4 ppb2010 — 0 ppb2012 — 0 ppb2013 — 0 ppb2015 — 0 ppb2016 — 0 ppb2018 — 0 ppb2019 — 0 ppb2021 — 0 ppb2022 — 0 ppb2024 — 0 ppb0199219982010201620222024

Down 0 ppb since 1992. Latest reading: 0 ppb (2024) — 0% of the action level. Sampled at higher-risk homes (90th percentile).

04Where Lake Lotawana's water comes from

Lake Lotawana purchases its water supply from a regional wholesale provider rather than treating raw water directly.

Source

Purchased Groundwater

Water is bought from a regional wholesaler; quality starts at the supplier's intake and treatment.

Treatment

Wholesale supplier

Primary treatment happens at the wholesaler; the local utility maintains disinfectant residual in its pipes.

Distribution

1 system

1 water system, operated under local government ownership.

Delivery

8,772 people

Residents served across Lake Lotawana's service area.

Water quality depends on both the wholesaler's treatment standards and the condition of Lake Lotawana's local distribution pipes and storage facilities. Purchased water systems are common in suburban areas and smaller communities that lack the infrastructure for independent treatment. The system is operated by local government ownership and serves approximately 8,772 people through 1 water system.

System namePWSIDPopulationSource
JACKSON COUNTY PWSD 15 MO1024281 8,772 Purchased Groundwater

05Pressure on Lake Lotawana's watershed

Outside forces that shape what reaches the treatment plant. None of these is a verdict on the tap by itself — but each adds pressure worth knowing about.

Industrial discharge

Present — monitored

5 facilities within 10 miles reported 0 lb released to surface water in the latest EPA Toxics Release Inventory. Proximity doesn't equal tap contamination — treatment and hydrology decide — but it's pressure on the watershed.

MEYER LABORATORY INC. 0 lb · 9.1 mi
CENTURY CONCRETE INC LEES SUMMIT FACILITY 0 lb · 9.3 mi
BILLY GOAT INDUSTRIES INC 0 lb · 6.5 mi
+ 2 more facilities

06How Lake Lotawana compares

Scores for nearby Missouri cities on one line, with the average marked.

Lake Lotawana (this city)
92.8 · A
Kansas City
79.2 · B
Chesterfield
74.8 · B-
Columbia
61.4 · C
O Fallon
43.4 · F
Springfield
37.1 · F

dashed line = Missouri average (67/100)

Lake Lotawana scores 92.8/100above the Missouri average of 67/100. It outscores 10 of 10 nearby cities. Full Missouri rankings →

Jackson water quality rankings
Compare all cities in the county — grades, violations, and contaminant data side by side.

07What to do at home

Steps matched to what testing actually found in Lake Lotawana's water — not generic advice.

Because of pfas

Filter drinking & cooking water

Activated carbon or reverse osmosis filter. 1 PFAS compound detected

Compare tested filters →
Know your report

Read your utility's annual report

Every utility must publish a yearly Consumer Confidence Report with its own testing results. It pairs well with the independent data on this page.

How to read a CCR →
Stay informed

Watch for Lake Lotawana alerts

We refresh EPA data monthly and surface new violations, advisories, and boil-water notices for your county on this page.

All water alerts →

Frequently asked questions

Is Lake Lotawana, MO tap water safe to drink?

Lake Lotawana's water quality earned a grade of A (92.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #37 out of 487 cities tested in Missouri.

What contaminants are in Lake Lotawana's water?

Lead was measured at 0.0 ppb (90th percentile). 1 PFAS compound was detected. 4 violations are on record.

How is Lake Lotawana's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Lake Lotawana?

PFAS compounds have been detected. A filter with activated carbon can help reduce exposure.

Where does Lake Lotawana's water come from?

Lake Lotawana's water is sourced from Purchased ground water. The city has 1 water system serving approximately 8,772 residents.

Is Lake Lotawana's groundwater at risk of contamination?

Lake Lotawana uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 4 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Lake Lotawana's water compare to other cities?

Lake Lotawana ranks #37 out of 487 cities in Missouri (better than 92% of state cities) and #1091 out of 15382 cities nationally (93th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

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About Lake Lotawana, MO: Lee's Summit is a city in Jackson and Cass counties in Missouri, United States. It is a suburb of the Kansas City metropolitan area. As of the 2020 census, the population was 101,108, making it the sixth most populous city in both Missouri and the Kansas City metropolitan area. Median household income $156,146 · median home value $525,140 · median age 46.9 · 89.4% homeowners · 61.4% college educated. Wikipedia → Service area: 2 ZIP codes across Jackson.
Show ZIP codes 6403464086
Sources: EPA SDWIS & ECHO · UCMR 3–5 · Lead & Copper Rule samples · EPA TRI · U.S. Drought Monitor · FEMA declarations. Data last updated Jul 2026. Analysis by the WaterVerge Editorial Team · methodology.