Chapter 13.05 WATER CROSS-CONNECTION CONTROL AND BACKFLOW PREVENTION ASSEMBLIES This chapter is included in your selections. Sections: 13.05.010 Purpose. 13.05.020 Definitions. 13.05.030 Conforming Regulations. 13.05.040 Premises Isolation. 13.05.050 Connection to Public Water Supply. 13.05.060 Inspection. 13.05.070 Violation – Penalty.