(A) The city has established a minimum standard that the measurement of the effectiveness of the control of stormwater quality will be based on the management of total suspended solids (TSS). The project site owner must submit to the city, a post-construction SWPPP that would show placement of appropriate BMP(s) from a pre-approved list of BMPs specified in city’s Utility and Infrastructure Construction Standards and Specifications Manual and would demonstrate that the expected TSS loadings in runoff associated with one inch of rainfall will be reduced by a minimum of 80% at the outfall(s) exiting the site. The noted BMPs must be designed, constructed and maintained according to guidelines provided or referenced in the city’s Utility and Infrastructure Construction Standards and Specifications Manual. Practices other than those specified in the pre-approved list may be utilized. However, the burden of proof, as to whether the performance (minimum 80% TSS removal) and ease of maintenance of such practices will be according to guidelines provided in the city’s Utility and Infrastructure Construction Standards and Specifications Manual, would be placed with the applicant. Details regarding the procedures and criteria for consideration of acceptance of such BMPs are provided in the city’s Utility and Infrastructure Construction Standards and Specifications Manual.
(B) Gasoline outlets and refueling areas must install appropriate practices to reduce lead, copper, zinc and hydrocarbons in stormwater runoff. These requirements will apply to all new facilities and existing facilities that replace their tanks.
(C) The following activities are exempt from the requirements of this section:
(1) Agricultural land-disturbing activities;
(2) Timber harvesting activities not associated with a proposed new development;
(3) Construction activities associated with a single-family residential dwelling disturbing less than five acres, when the dwelling is not part of a larger common plan of development or sale;
(4) A single-family residential strip development where the developer offers for sale or lease without land improvements and the project is not part of a larger common plan of development of sale; or
(5) Individual building lots within a larger permitted project.
(Prior Code, § 62-111) (Ord. 05-30, passed 11-14-2005)