The National Park Service awarded a firm fixed-price purchase order valued at approximately $1.06 million to Hill Brothers Chemical Co Phoenix Division for the supply of water and wastewater treatment chemicals to Grand Canyon National Park. The contract was awarded under Solicitation WATER/WASTEWATER CHEMICALS FOR GRCA to provide various chemicals including chlorine gas cylinders, sodium hypochlorite, sodium bisulfite, aluminum chloride polymer and others from April 2021 through March 2022 in support of the National Park Service's operations. The opportunity was set aside exclusively for small businesses. Hill Brothers Chemical Company is the prime contractor and will deliver the awarded chemicals to sites on both the South and North rims of the Grand Canyon on a monthly and semi-annual basis respectively. The Department of the Interior National Park Service Intermountain Region is the contracting agency.