Twin Lakes Park D.2 (Low), also known as Spring Lake Park, is a local government-owned recreational area located in Williams, North Dakota. The park features an earth dam that was completed in 1933 by the Civilian Conservation Corps (CCC), with a dam height of 20 feet and a length of 220 feet. The dam has a storage capacity of 108.2 acre-feet and a surface area of 15.1 acres, making it an important water resource for the surrounding community.

Despite its age, Twin Lakes Park D.2 (Low) has a low hazard potential and a moderate risk assessment rating of 3. The dam has not been inspected since September 2000, but it is regulated by the North Dakota State Water Commission (NDSWC) and meets state permitting, inspection, and enforcement requirements. While the dam is considered to be in "not rated" condition, it is still deemed safe for recreational activities and serves as a valuable asset for water storage and conservation in the area.

Overall, Twin Lakes Park D.2 (Low) serves as a vital recreational and water resource for the community of WILLISTON. With its historical significance and functional design, the earth dam provides a safe and enjoyable environment for visitors while also contributing to water management efforts in the region. As climate change continues to impact water resources, the importance of maintaining and monitoring dams like Twin Lakes Park D.2 (Low) becomes increasingly crucial for ensuring the safety and sustainability of our water supply.