South Tamarack Lake, located in Becker, Minnesota, is a federally owned Earth dam constructed by USF&W in 1967. With a dam height of 10 feet and a length of 2640 feet, the lake has a storage capacity of 4820 acre-feet. The primary purpose of the dam is listed as "Other," with low hazard potential and a condition assessment of "Not Rated."

Situated on the Buffalo River-TR, South Tamarack Lake serves as a vital water resource in the region, with a drainage area of 3.2 square miles. The dam's normal storage capacity is 1137 acre-feet, providing essential water supply for the area. Despite the lack of state regulation and inspection, the dam's emergency action plan status and risk assessment remain unknown.

Climate and water resource enthusiasts will appreciate South Tamarack Lake for its significant role in water management and conservation efforts in Minnesota. The dam's low hazard potential and remote location in Richwood make it a valuable asset for maintaining water quality and quantity in the region. As the data on its emergency preparedness and risk assessment are limited, further evaluation and monitoring of this important water infrastructure may be necessary to ensure its continued effectiveness and safety in the face of changing climate conditions.