If a subdivision is partly in the city and partly in the county, the county surveyor and the city engineer shall enter into an agreement by and with the consent of their respective governing bodies providing that either shall perform the duties prescribed for the city engineer in this chapter, or providing for an apportionment between them of such duties. When by such agreement all such duties devolve upon either the city engineer or the county surveyor, such officer shall perform said duties. After performance thereof, such officer shall certify to the performance of said duties on the map. When by such agreement the duties are apportioned between the county surveyor and the city engineer, each officer shall, after the performance thereof, make certification on said map, covering the duties performed by each.
(Ord. 3157 § 1 (part), 1979).