The city council has determined that the draining of swimming pools into the alleys within the city can create soil conditions in which the city's solid waste collection trucks and service trucks of other utilities will create severe rutting, making said alleys impassable, and therefore, the city has determined to enact this chapter prohibiting the draining of swimming pools into alleys of the city and providing that they shall be drained only into the nearest storm sewer or street improved with curb, gutter and pavement designed to carry off the excess water. (1996 Code § 12.16.010)