Idc-Effluent Storage is a state-regulated water storage facility located in Ada, Idaho, with a primary purpose of irrigation. This earth dam, constructed in 1998, stands at a height of 23 feet, with a hydraulic height of 20 feet and a length of 3125 feet. It has a storage capacity of 105 acre-feet and covers a surface area of 13 acres, serving the surrounding area with water from the SPRING TENMILE CREEK. The dam, built on rock and soil foundations, is equipped with other controlled outlet gates for water release.

Despite its satisfactory condition assessment as of December 2020, Idc-Effluent Storage poses a significant hazard potential, with a high risk assessment rating of 2. Regular inspections are conducted, with an inspection frequency of 4 times per year to ensure the safety and efficiency of the structure. While there are no spillways or locks associated with the dam, it remains an essential component of the local water management system and contributes significantly to the irrigation needs of the region. With its location in a remote area and its critical role in water resource management, Idc-Effluent Storage plays a crucial role in sustaining agricultural activities in the surrounding area.