An ordinance amending section 15.24.030 and adding section
15.24.040 and section 15.24.050 to the Sacramento City Code to adopt local amendment to the California Building Standards Code relating to AlternateWater Systems. For building permit applications filed on or after July 1, 2023, buildings that are 10,000 sf or greater must include a gray water system to provide subsurface irrigation. For building permit applications filed on or after July 1, 2023, buildings that are 50,000 sf or greater must include installation of a separate additional piping system for an on-site treated non-potable gray water system for water closets and urinals. Residential buildings (California Building Standards Code, Chapter 3 R-2, R-2.1, R-3, R-3.1 or R-4 occupancy classifications); additions and improvements, including tenant improvements in existing buildings as defined in the California Building Standards Code; child-care centers; grocery stores to be constructed in food deserts; mini storage, locker buildings; or warehouse, distribution centers are exempt from these requirements. The ordinance adds additional sections to Sacramento City Code Chapter 15.24 requiring a user supervisor declaration and regulating the operation of gray water systems. The resolution outlines the City's commitment to study the costs and programmatic requirements for on-site treatment and reuse of non-potable water.