Chapter 15.24 WATER-EFFICIENT LANDSCAPING This chapter is included in your selections. Sections: 15.24.010 Applicability. 15.24.020 Landscape documentation package. 15.24.030 Water conservation concept statement. 15.24.040 Landscape design plan. 15.24.050 Irrigation design plans and specifications. 15.24.060 Certification. 15.24.070 Provisions for existing landscapes.