SAN FRANCISCO (AP) -
Kern County is asking California's highest court to weigh in on whether the city of Los Angeles can continue using treated sewage sludge as fertilizer on farms it owns within the county.
The Bakersfield Californian reports that Kern County's Board of Supervisors voted unanimously on Tuesday to petition the California Supreme Court.
The move comes after a state appeals court denied Kern County's request to be allowed to enforce a local, voter-approved ban on the use of sewage sludge on lands in the county.
Kern voters passed the ban, called Measure E, in 2006; Los Angeles successfully sued to block the measure.
Los Angeles exports treated sewage -- so-called "bio-solids" -- to its Green Acres farm southwest of Bakersfield for use as fertilizer.