Chapter 11.165 USE OF THE SEWER MODEL IN CONJUNCTION WITH PHASE 1 HYDRAULIC PLANNING ANALYSES This chapter is included in your selections. Sections: 11.165.010 Definitions. 11.165.020 Purpose. 11.165.030 Proposed development above projected two-year overflow. 11.165.040 All other proposed development. 11.165.050 HPA amendments. 11.165.060 Request for waiver.