Any local agency within a local drainage or sanitary sewer area may adopt the plan and map designated in Section 66483 and impose a reasonable charge on property within the area which, in the opinion of the legislative body, is benefited by such drainage or sanitary sewer facilities. The charge collected must be paid to the local agency or subdivider constructing such drainage or sanitary sewer facilities, and any local agency within the drainage or sanitary sewer area may enter into a reimbursement agreement with the subdivider.