Sewer Improvements, Lake Anita State Park, Cass County

This project includes improvements for two wastewater treatment system in Backbone State Park. The project primarily consists of the following: The existing septic tank and sand filter treatment system will be removed and replaced. UV disinfection will be installed. A lift station and valve vault will be removed and replaced. The lagoon treatment system will be improved with piping modifications, sampling manholes, and tablet chemical treatment equipment. *** Project documents, including plans, specifications, proposal forms, and addenda for this project are available at Beeline and Blue, 2507 Ingersoll Ave, Des Moines, IA 50312. Please visit www.beelineandblue.com or contact (515) 244-1611 for more information. *** Direct substitution requests, questions about the project, or questions concerning bidding and contract procedures to DNR Procurement. To be considered, these requests must be emailed to constructionbids@dnr.iowa.gov by 12:00pm the Friday prior to bid letting with the following subject line: Contractor Question - Project Number - Project Location *** Bid Closing Date and Time: 6/18/2026 at 11:00 AM CST