Loose Park Lake is a highly nutrient-loaded hypereutrophic lake in Jackson County, Missouri. Water quality is graded F based on 1 sampling years through 2021. Overall water quality is improving over recent sampling years. Compared to the 26 other monitored lakes in Jackson County, Loose Park Lake ranks #27 for water quality.
Source: EPA Water Quality Portal sampling records, Missouri DNR, last sampled 2021-06-03. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
No clarity data. Chlorophyll-a: 159.8 µg/L. Trophic State Index: 80.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 159.8 µg/L | F |
| Trophic State Index (TSI) | 80 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Loose Park Lake
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Top-rated places to stay near Loose Park Lake
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Fishing Loose Park Lake
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Chlorophyll-a | ↑ Improving | -144.9 µg/L/yr | 2 |
Water Temperature
Loose Park Lake averages about 78°F at the surface in summer, usually warmest in Jul (about 83°F) and coldest in May (about 73°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 39 field readings (2010–2021) via the EPA Water Quality Portal. See the full Loose Park Lake water temperature breakdown →
Location
County Ranking
Ranked #27 of 27 lakes in Jackson County
Cleaner Lakes Within 30 Miles
Loose Park Lake holds Grade F. 3 nearby lakes hold higher grades.
Nearby Lakes in Jackson County
Explore Loose Park Lake across LakeGrade
Species activity outlook by water temperature and season
Where to stay at Missouri's top lakes, each with its grade
Very high nutrients, dense algae, poor clarity
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More records, surveys & data sources
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Loose Park Lake under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Mdc, Discovery CenterKansas City · 1.2 mi away · NPDES MO0127787Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2021-06-03
Monitoring stations: 1