The Center for Biological Diversity filed a lawsuit against Hobbs and the Arizona Department of Water Resources, saying they “failed to perform their mandatory duty” to conduct reviews of the Upper San Pedro Basin to determine if the area would require active management practices. Robin Silver, the center’s co-founder, said in a statement that Hobbs and her administration are violating the state’s groundwater management laws. “Her inaction is causing an existential crisis that will lead to the demise of the river and the plants and animals whose existence depends on its flows,” Silver’s statement said. In 2023, the San Pedro Alliance sent a petition to Hobbs and the Director of ADWR asking for an active management area to be created in the upper basin area of the San Pedro River, but neither responded. The lawsuit, filed with the Maricopa County Superior Court, asks the court to compel Hobbs and ADWR to review the Upper San Pedro Basin and designate it an active management area. It cites a letter sent by Mayes to ADWR in 2023 that pointed out only two reviews have been conducted of the river in a 40-year period, which fails to satisfy requirements laid out by the state’s Groundwater Management Act. A spokesperson for ADWR said the department would not comment on pending litigation. Hobbs’ spokesperson did not immediately respond to a request for comment.
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