Nspc Stage 2 Tailings, also known as Keetac, is a private-owned tailings structure located in Pengilly, Minnesota. This earth dam, completed in 1978, stands at a height of 30 feet and spans 25,300 feet in length. With a storage capacity of 10,000 acre-feet and a normal storage of 2,100 acre-feet, it plays a crucial role in managing the tailings from mining operations in the area.

Situated in the St. Louis County, Minnesota, the Nspc Stage 2 Tailings structure holds a significant hazard potential, but its condition is assessed as fair as of August 2015. The dam is regulated by the Minnesota Department of Natural Resources (MNDNR EWR) and undergoes inspections every 4 years to ensure its safety and compliance with state regulations. Despite its age, the dam continues to serve its primary purpose effectively, highlighting the importance of proper maintenance and monitoring of water resource infrastructure in the face of changing climate conditions.

For water resource and climate enthusiasts, Nspc Stage 2 Tailings offers a fascinating case study in the management of mining-related tailings structures. Its location along the Hay Creek-OS river stream and its significant storage capacity make it a critical piece of infrastructure in the region. With its history dating back to the late 1970s, the dam serves as a reminder of the ongoing challenges and responsibilities associated with maintaining and monitoring water resources amidst a changing climate landscape.