Water Code § 8888
CHAPTER 6. Sale of Land for Delinquent Assessments
The board, when any land has been sold pursuant to the provisions of this chapter shall execute a deed to the purchaser at the sale conveying the property, free of all encumbrances except State, county and other municipal taxes, assessments levied or assessed by statutory authority and the unpaid balance of all assessments of the drainage district, which balance shall be called in and collected in the same manner as other assessments.