Water Code § 26000

26000.

A board shall order the collector to cancel or modify, as may be proper, an assessment when it finds that any property has been either:

(a) Assessed in any year more than once.

(b) Assessed by reason of a clerical error for more than its full cash value.

(c) Computed for assessment on an excessive acreage.

(d) Assessed while not in the district.