NOR_05_CMP14 status 10 13 2016

Durphee Lake (WBIC:2396800) is a 198 acre seepage lake with a maximum depth of 16 feet. Durphee Lake is classified as eutrophic, as is evident by the green color in aerial photos. However, there are no phosphorus or chlorophyll data to make a formal assessment. In 1969, the Surface Water Resources of Sawyer County states that "occasionally bluegreen algae develops to the nuisance stage and causes partial summer fish kill conditions" and that the lake is also connected via a channel to a cranberry operation on the west shore. Water quality sampling will be conducted by 2 DNR staff at the deep hole site (Site ID-10041471) of Durphee Lake (WBIC:2396800). Samples will be taken 3 times between July 15 and September 15 in 2014 (FY15) and 2015 (FY16) to coincide with WisCALM methodology. At each sampling event, multiparameter probes will be used to conduct profiles and integrated samplers will be used to collect the water samples.

Water quality sampling will be conducted by 2 DNR staff at the deep hole site (Site ID-10041471) of Durphee Lake (WBIC:2396800). Samples will be taken 3 times between July 15 and September 15 in 2014 (FY15) and 2015 (FY16) to coincide with WisCALM methodology. At each sampling event, multiparameter probes will be used to conduct profiles and integrated samplers will be used to collect the water samples. Data collected at the 3 summer sampling events will be secchi, temperature, dissolved oxygen, pH, and conductance profiles; and total phosphorus, and chlorophyll a concentrations.