Koenig, also known as Koenig Lake or King Reservoir, is a private water resource located in Weld County, Colorado. This reservoir, completed in 1882, serves primarily for irrigation purposes, with a dam height of 9 feet and a storage capacity of 100 acre-feet. Situated along the Big Thompson River, Koenig plays a crucial role in supporting agricultural activities in the region.

Despite being privately owned, Koenig is regulated by the Colorado Department of Water Resources, ensuring that the dam meets state permitting, inspection, and enforcement requirements. The dam's hazard potential is considered low, with a fair condition assessment as of the last inspection in July 2010. However, the risk assessment indicates a high risk level, emphasizing the importance of continued monitoring and maintenance to mitigate any potential hazards.

Although Koenig may not be as well-known as other reservoirs, its historical significance and role in sustaining local agriculture make it a valuable asset in the water resource management of Weld County. As climate change continues to impact water availability and quality, the maintenance and regulation of dams like Koenig will be essential in ensuring a reliable and sustainable water supply for the community.