JVA designed and permitted the Mt. Crested Butte Water and Sanitation District (District) Water Treatment Plant (WTP) Expansion. The District’s existing WTP was constructed in 1986 and consists of a 1 MGD direct filtration packaged unit water treatment facility. The WTP treats water from the East River, Malensik Ditch, and four springs. Due to limited expansion area and the age of the existing WTP and raw water pump station and transmission line, JVA was hired in 2019 to permit and design a new 2.0 MGD (firm capacity) membrane filtration plant and new East River diversion structure integral with a new raw water pump station. The WTP expansion and improvements provide adequate system redundancy during peak demands. The project also included a new redundant raw water transmission line connecting the pump station to the WTP. In addition to process improvements, the project included a new laboratory and administrative building along with repurposing the old WTP area for storage and converting the old clearwell to backwash recovery basins. As part of the permitting process, JVA prepared a comprehensive Basis of Design Report (BDR) which analyzed current and projected full buildout peak demands to comply with CDPHE design criteria for potable water systems. The $21 million project was delivered using the Construction Manager and Risk (CMAR) method and funded the SRF. The new raw water pump station and membrane filtration system went online in January 2022. JVA was retained to provide construction oversight, observation, and administrative services.