Golden mussels again dominated board discussions at several water district meetings. … Eric McDaris, water resources manager for Wheeler Ridge-Maricopa Water Storage District told his board  that the first step is for costs to hit $5 million. At that point the county would send a letter to the state Office of Emergency Services that would potentially result in some reimbursements to districts. … He said they were finding 100% mortality in mussel testing bags, as well as no mussel growth on settling plates. North Kern began its golden mussel treatments with Blue Tech. Ram Venkatesan, deputy general manager for the district reported they had 90% mortality in the district’s testing bags, the remaining 10% were starting to open up and would be dying off as well.