Engineer's Report — L.1

Agenda Item : L-1 PROJECT UPDATE  A Review of MSA Projects in Your Community City of Tiffin, IA CLIENT LIAISON: Andrew Inhelder, PE Office: 319.364.4773 Cell: 515.802.0906 [email protected] DATE: April 2, 2026 ON-GOING PROJECTS REVERSE OSMOSIS WATER TREATMENT PLANT DESIGN – CLINT WIENEN The media within the existing pressure filters has been replaced and tested for all (4) filters. The Clearwell has been excavated, and the contractor is starting to place rebar for the base slab. Rough-Ins for the underground electrical conduits have been installed within the new MCC room, and they are starting to rough-in the RO Building. Precast walls and planks for the RO Building are scheduled to be delivered the week of April 13th. Th erection of the precast is expected to commence upon delivery. SYSTEMWIDE SANITARY SEWER MODEL – ERIC THOMPSON MSA is updating the land use data, to reflect known (but not yet completed) development in the City to be the new benchmark for existing conditions. The City is completing drawn down tests on the lift stations. Once completed, MSA will integrate the draw down results into the sanitary model, export outputs, and finalize the model construction. VILLAGE DRIVE & ROBERTS FERRY ROAD SIGNAL DESIGN – CHAD WAGNER Project is finalizing the project manual and then ready for city approvals. PROJECT UPDATE Page 1 of 6