Diamond Lake Health
Water Quality
The Lake Preservation Committee of the Diamond Lake Association has taken an aggressive stance in monitoring and protecting our waters since 1992, the same year the sewer project was completed on our lake. A gradual improvement in water quality has been observed since that time. Diamond Lake residents are fortunate to live on a beautiful lake with high water quality and be a step ahead of the invasive weed issues that have plagued other lakes in the Great Lakes Region.
Maintaining Diamond Lake water quality is a collective effort, starting with citizen volunteers for the Collective Lakes Monitoring Program (CLMP). Diamond Lake water testing is conducted frequently throughout the spring and summer for total chlorophyll a, total phosphorus and water clarity. Tests have also been taken for dissolved oxygen, e-coli and algae at various times. The Water Quality report from the CLMP states that Diamond Lake, according to Carlson’s Trophic State Index, is a high quality Mesotrophic lake.
If you would like more specific information on water quality including copies of reports filed with the DEQ please email info@dlacassopolis.org.
Cooperative Lakes Monitoring Program 2019 Data Report for Diamond Lake
Invasive Weeds
Invasive plant species are defined by the State of Michigan as any species that are not native and also have the potential to harm human health or to harm natural, agricultural or silvicultural resources.
The Diamond Lake Association maintains a proactive stance in regard to the identification and treatment of such plant species in Diamond Lake. Invasive exotic weed invasion like Eurasian watermilfoil, Purple Loosestrife(pictured here) and Hydrilla verticillata require monitoring and treatment as necessary.
We cannot stop these invasive weeds from invading Diamond Lake but our goal is to stay ahead of the curve through:
constant monitoring
treatment
preventative measures with non-resident boaters
Learn more about Michigan Invasive Plant Species at the link to Michigan.gov