Article IV — CALIFORNIA GREEN BUILDING STANDARDS CODE (CALGreen), AMENDED SECTION TO…

{See CBC, and the meaning of the following terms is modified.}

BIORETENTION. A shallow basin or planter box, designed and constructed in accordance with the provisions of Chapter 13.08 of Title 13 of this code, that utilizes conditioned soil, vegetation, and subgrade rock for the storage and treatment of stormwater runoff.

ENFORCING AGENCY. The Building Inspection Division of the Public Works Agency of the County, except for Sections 4.106.2 and 4.106.3 of Chapter 4 and Sections 5.106.1, 5.106.2, and 5.106.10 of Chapter 5, which shall be enforced by the Development Engineering Section of the Construction & Development Services Department of the County Public Works Agency.

INFILTRATION. Depending upon usage,

1. An uncontrolled inward air leakage from outside a building or unconditioned space, including leakage through cracks and interstices, around windows and doors and through any other exterior or demising partition or pipe or duct penetration; or

2. Storage and treatment of stormwater runoff in a subsurface area of the site by means of a French drain or similar device designed and constructed in accordance with the provisions of Chapter 13.08 of Title 13 of the General Ordinance Code of the County.

LOW IMPACT DEVELOPMENT (LID). Control and protection of stormwater at its source to mimic the drainage of an undeveloped site, in accordance with the provisions of Section 15.08.180 of this chapter and of Chapter 13.08 of Title 13 of this code.

(Ord. No. 2025-72, Exh. B, 12-16-25)