The project involves the Palisades Lagoon & Sprinkler System Replacement, which includes maintaining and upgrading the wastewater treatment system at the Palisades Administrative Site. Work entails replacing the existing lagoon liner and effluent sprinkler system, reconstructing access roads, and installing a temporary wastewater conveyance system to ensure uninterrupted service during construction. Performance will take place at the Palisades Administrative Complex on the Santa Catalina Ranger District of the Coronado National Forest, Pima County, Arizona, approximately 20 miles from Tucson. This acquisition is a total small business set-aside under NAICS code 237110, with a small business size standard of $45 million. All responsible small business sources may submit a quotation for consideration.