Find A Lake > Portage County > Amherst Millpond
Amherst Millpond
Water Quality
One measure of a lakes health is the trophic state, which relates to the amount of algae in the water. The average summer trophic state for the last 5 years was 51 (Eutrophic) and was determined using chlorophyll data. For a Impounded Flowing Water lake, this is considered Excellent.
Amherst Millpond was monitored by volunteers between 1994 and 2021. Volunteers monitor water clarity with a black and white Secchi disk. Some also collect water samples, which are sent to the State Lab of Hygiene to be analyzed. Volunteers are the source of the majority of Wisconsin's lake water quality data, and their dedication is greatly appreciated. Reports and graphs featuring data collected by volunteers, DNR staff and others can be viewed below.
Water Quality Reports and Graphs
| Station Name | Station ID | Map | Max Year | Reports |
|---|
| Amherst Millpond - Center | 10040059 | Map | 2021 | Details |
| McDill Pond - Site 2 | 503092 | Map | 1996 | Details |
| McDill Pond - Site 3 | 503093 | Map | 1996 | Details |
| Mcdill Pond - Site 1 | 503091 | Map | 1996 | Details |