Horseshoe Lake Test Results
The City takes samples from Horseshoe Lake and tests for one or more of the following E.Coli, Phosphorous, and Chlorophyll. We also take a "Secchi" reading for water clarity and temperature readings. We pull water samples near buoy 2 (near the swim area) and buoy 3 (the mid point of the lake). In the winter months we do periodic testing because of lower temperatures, increased river flows, and reduced public usage of the lake. The total phosphorus is an early indicator of conditions that could lead to algae blooms.
| Month | Phosphorous (TP) | Chlorophyll a | E. coli |
|---|---|---|---|
| January | 2 Locations | none | none |
| February | none | none | none |
| March | 2 Locations | none | none |
| April | none | none | none |
| May | 2 Locations | 2 Location | 1 Locations |
| June | 2 Locations | 2 Locations | 1 Locations |
| July | 2 Locations | 2 Locations | 1 Locations |
| August | 2 Locations | 2 Locations | 1 Locations |
| September | 2 Locations | 2 Locations | 1 Locations |
| October | none | none | none |
| November | 2 Locations | none | none |
| December | none | none | none |
For more information about algae in lakes, click on the links below.
