In County of Contra Costa v. Central Contra Costa Sanitary Dist. (1960) 182 Cal.App.2d 176, development of a flood control system required relocation of an existing sewer line. The court reasoned simply that the facts disclosed that it was "merely a situation in which the sanitary district's right and easement . . . for its sewer line was prior in time to the rights of the other two public bodies and therefore prior in right." (Id., at p. 178) In denying the county's request for reimbursement of its costs to relocate the sewer, the court quoted from the trial judge's memorandum of decision that: "Each district here involved comprises a separate group of people who will benefit and should be burdened only by the building and maintenance of its own public works. Why should the taxpayers of Northridge be taxed to pay the costs of a sewerage disposal system which does not benefit them? Why should the taxpayers of Northeast receive a free ride for this not inconsiderable item of expense in the building of said sewerage system?"