Initial arguments have wrapped up in a Ventura County groundwater rights case – litigation that Camarillo officials have argued could undermine the city’s water supply. A group of agricultural property owners called the OPV Coalition filed the lawsuit in 2021. Pending in Santa Barbara Superior Court, it seeks to determine groundwater rights in two basins that include areas in Oxnard, Camarillo, Port Hueneme, Ventura and nearby unincorporated communities. The goal was to resolve all competing demands for groundwater in the Oxnard and Pleasant Valley basins, according to O’Melveny & Myers in Los Angeles, the law firm representing the coalition.