Linn County Lake Quality
Kansas, 11 lakes, measured by KDHE
Linn County holds 11 monitored lakes. With a sample that small the county-level summary describes those specific waters, not necessarily every water body in the county. 2 of those lakes carry recent nutrient and algae readings. The county-level summary describes that subset, not every water body listed. For Linn County the spread behind the average matters more than the average itself: a few nutrient-rich lakes among many clear ones produce the same figure as the inverse.
Most of the county's monitored lakes are shallow, under 50 feet, which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Pleasanton Reservoir has the lowest nutrient and algae readings in the county.
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Quick Answers for Linn County
Planning a trip? Check special fishing regulations for Pleasanton Reservoir — or check the official Kansas fishing regulations.
All Lakes in Linn County
11 lakes · 2 ranked on readings, 9 without enough sampling2 lakes ranked on readings · 9 without enough sampling, hidden
| # | Lake | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|
| 1 | Pleasanton ReservoirLinn | 4.3 ft | 22.5 µg/L | 16 µg/L | No recent samples | ✓ Public |
| 2 | Mound City LakeLinn | 3.6 ft | 50 µg/L | 24 µg/L | No recent samples | Not recorded |
| Blue Mound City LakeLinn | 4.9 ft | 34.5 µg/L | 8.3 µg/L | No recent samples | Not recorded | |
| Critzer LakeLinn | 6.6 ft | 20 µg/L | 12.5 µg/L | No recent samples | Not recorded | |
| Linn Valley LakeLinn | 8.2 ft | 20 µg/L | 4.2 µg/L | No recent samples | Not recorded | |
| Marais des Cygnes Nwr LakeLinn | 0.6 ft | 810 µg/L | 255 µg/L | No recent samples | Not recorded | |
| La Cygne LakeLinn | 2.4 ft | 37 µg/L | 56 µg/L | No recent samples | ✓ Public | |
| Parker City LakeLinn | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Marais des Cygnes Wildlife Area LakeLinn | 0.5 ft | 2.3 µg/L | 454 µg/L | No recent samples | ✓ Public | |
| Lake ChaparralLinn | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| Boicourt LakeLinn | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
NR = no nutrient or algae reading on record. The measurements are published as the authority reports them. Where the data comes from.
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Source: the Kansas Department of Health and Environment. See data sources.