20.68.020 Applicability.
Development projects subject to permittee conditioning and approval for the design and implementation of post-construction controls to mitigate stormwater pollution, prior to completion of the project(s), are:
A. Greater than One Acre. All development projects equal to one acre or greater of disturbed area that add more than 10,000 square feet of impervious surface area.
B. Industrial Parks. Industrial parks 10,000 square feet or more of surface area.
C. Commercial Malls. Commercial malls 10,000 square feet or more of surface area.
D. Retail Gasoline Outlets. Retail gasoline outlets with 5,000 square feet or more of surface area.
E. Restaurants. Restaurants (Standard Industrial Classification (SIC) of 5812) with 5,000 square feet or more of surface area.
F. Parking Lots. Parking lots with 5,000 square feet or more of impervious surface area or with 25 or more parking spaces.
G. Streets and Roads. Street and road construction of 10,000 square feet or more of impervious surface area. Street and road construction applies to stand-alone streets, roads, highways, and freeway projects, and also applies to streets within larger projects.
H. Automotive Service Facilities. Automotive service facilities (SIC of 5013, 5014, 5511, 5541, 7532 through 7534, and 7536 through 7539) with 5,000 square feet or more of surface area.
I. Sensitive Areas. Projects located in or directly adjacent to, or discharging directly to, an environmentally sensitive area (ESA), where the development will:
1. Discharge stormwater runoff that is likely to impact a sensitive biological species or habitat; and
2. Create 2,500 square feet or more of impervious surface area.
J. Redevelopment Projects.
1. Land disturbing activity that results in the creation, addition, or replacement of 5,000 square feet or more of impervious surface area on an already developed site on planning priority project categories.
2. Where redevelopment results in an alteration to more than 50 percent of impervious surfaces of a previously existing development, and the existing development was not subject to post-construction stormwater quality control requirements, the entire project must be mitigated.
3. Where redevelopment results in an alteration of less than 50 percent of impervious surfaces of a previously existing development, and the existing development was not subject to post-construction stormwater quality control requirements, only the alteration must be mitigated, and not the entire development.
4. Redevelopment does not include routine maintenance activities that are conducted to maintain original line and grade, hydraulic capacity, original purpose of facility, or emergency redevelopment activity required to protect public health and safety. Impervious surface replacement, such as the reconstruction of parking lots and roadways, which does not disturb additional area and maintains the original grade and alignment, is considered a routine maintenance activity. Redevelopment does not include the repaving of existing roads to maintain original line and grade.
5. Existing single-family dwellings and accessory structures are exempt from the redevelopment requirements unless such projects create, add, or replace 10,000 square feet of impervious surface area.
K. Other Projects. Any other project as deemed appropriate by the director of community development based on finding that characteristics of either the project or the site may result in environmental effects that can be mitigated by application of this chapter. (Ord. 690 § 4 (Exh. A), 2018).