The Quill 水 Treatment Plant Rehabilitation Project consists of replacing aging and obsolete water treatment equipment at the Quill 水 Treatment Facility. The facility is currently permitted to treat up to 6 million gallons per day (MGD); however, the existing system is only capable of treating 1 million gallons per day due limitations of the existing technology. The City relies on groundwater wells to provide an additional 5 MGD to meet user demand.  Completion of the upgrades will allow the treatment plant to treat up to 6 million gallons per day of surface water. Treating and using surface water will allow for a reduction to groundwater well usage; therefore, preserving storage of groundwater for reserves and drought situations. The rehabilitation project will include replacing the existing diatomaceous earth (DE) filter system with a package filtration system, an ultraviolet (UV) disinfection system, a coagulation and polymer system, and other pumps and process piping. 卡森市公共工程 is in the design phase of the Project with the plan to complete design by the end of 2023.