Mc Call Subwatershed Site M-1, located in Monona, Iowa, is a vital water resource managed by the local government with oversight from the Iowa Department of Natural Resources. This site, designed by the USDA NRCS, serves multiple purposes including fire protection, stock, and small fish pond management, as well as flood risk reduction. The earth dam, completed in 1963, stands at a height of 56 feet and has a storage capacity of 159 acre-feet, providing essential water management for the surrounding area.

With a low hazard potential and a moderate risk assessment, Mc Call Subwatershed Site M-1 plays a crucial role in maintaining water quality and quantity in the region. The dam, constructed on Gard Creek, covers a drainage area of 0.53 square miles and has a surface area of 7.5 acres. Despite its age, the dam remains in good condition and has not yet been rated for its structural integrity. While inspections and maintenance are ongoing, the site does not currently have an emergency action plan in place, highlighting the need for continued monitoring and preparedness in the face of changing climate conditions. Water resource and climate enthusiasts can appreciate the importance of Mc Call Subwatershed Site M-1 as a key component of sustainable water management in the area.