Section 51833 Of Article 2. Calls On Bonded Assessments From California Water Code >> Division 15. >> Part 7. >> Chapter 6. >> Article 2.

. If any landowner has paid the whole or any part of the call so canceled, the county treasurer, upon demand of such landowner, shall refund to him the portion of the amount paid which is not so required, or, if no demand is made, shall hold that portion as a credit to the landowner on future calls against his land under the assessment.