The Water Systems Operator shall be responsible for the protection of the public potable water distribution system from contamination or pollution due to the backflow of contaminants or pollutants through the water service connection. If, in the judgment of the Water Systems Operator, or his/her designated agent, a backflow prevention assembly is required, the Water Systems Operator shall give notice in writing to said customer to install such an approved backflow prevention assembly at specific locations on his/her premises. The customer shall immediately install such approved assembly at his/her own expense; and, failure, refusal, or inability on the part of the customer to install, have tested, and maintain said assembly shall constitute grounds for discontinuing water service to the premises until such requirements have been satisfactorily met. (Ord. 110, 3-22-1994; 1997 Code)