Monterey county supervisors are set to take cal-am water to court, to try to enforce new regulations governing desalination plants. Supervisors recently passed a set of regulations setting health standards and other stipulations. Cal-am officials have argued that the ordinance does not apply to the utility’s planned desal plant, which is being proposed for a site north of marina. The state public utilities commission has also maintained that supervisors cannot restrict the plant. County supervisors decided Tuesday to take the matter to move forward with litigation.