Section 8828 Of Article 4. Assessment Lists From California Water Code >> Division 5. >> Part 4. >> Chapter 5. >> Article 4.

. Unless the aggregate amount of the whole of the assessment is modified or amended by the board so as to cause a difference of more than 2 1/2 per cent greater or less than the original total amount of the assessment, it is deemed that the assessment has not been subsantially modified and no necessity shall exist for a reapportionment thereof.