Croke No. 7, also known as Croke Reservoir or Carlson Reservoir, is a significant water resource located in Northglenn, Adams County, Colorado. Owned by the local government, this reservoir has been regulated and permitted by the Colorado Department of Water Resources, ensuring its safety and compliance with state regulations. Built in 1888, Croke No. 7 serves primarily for water supply purposes, including irrigation and drinking water provision.

With a dam height of 16 feet and a storage capacity of 200 acre-feet, Croke No. 7 boasts a surface area of 10 acres and a maximum discharge of 90 cubic feet per second. The reservoir's spillway type is uncontrolled, with a spillway width of 4 feet. Despite a low hazard potential and a satisfactory condition assessment as of 2009, a moderate risk assessment (level 3) indicates the need for ongoing monitoring and risk management measures to ensure the safety and functionality of this essential water infrastructure in the face of potential climate challenges.