Expiration date: 12/22/2025
The applicant, Missouri American Water Company, seeks authorization to install approximately 1,800 feet of new 48-inch gravity outfall conveyance from the new water treatment plant to the Missouri River. Open trenching will occur from the water treatment plant to the Missouri River. Within the Missouri River, the outfall conveyance will be placed on the downstream side of an existing wing dike and covered with material of the same gradation as that of the existing dike structures, growing the footprint of the dike but not altering the dike elevations. The activity site is located off of Hog Hollow Road in Chesterfield, St. Louis County, Missouri. The project is in Section 36, Township 46 North, Range 04 East, at latitude 38.682227 and longitude -90.525607. The outfall structure portion of the project is located at approximate river mile 36 of the Missouri River (right descending bank). The Public Notice comment period is open from December 1, 2025, through December 21, 2025. You may submit comments by individual e-mail message or by mailing them to the address in the attached notice.