1515 112TH ST SE BASE FILE 2018-01-02 MF Import

MEMORANDUM TO: Gordon Witcher FROM: Jane li nmmcnnan DATE: August 9, 1996 SUBJECT: Pre -Application Meeting, Dennis Petroleum, 1 12th Street My camments on the subject project are: On -site detention of stommwater runoff is required per City standards. Treatment of stormwater runoff from paved areas must occur, per City standards, prior to discharge of the stormwater from the site or to if stream or wetland. Stonnwater detention/retention, quality protection, and treatment requirements for this project shall be those requirements in eliect at the time of application for Public Works permits. Because the site is located within the Silver Lake drainage basin, a wetpond in series with a vegetated swale will be required to provide stormwater treatment for pavement runoff from this project. The applicant proposes to upgrade the existing stormwater treatment facility located to the north to treat stormwater runoff from this project. Any alteration of the existing facilities must result in treatment and dcteu ion of stom»eater from the existing project at least al a level consistent with the requirements that were in place for that project. Rooftop runoffshould be discharged to roofdownspout infiltration systems designed and constructed in accordance with City standards, if suitable soil conditions exist on the site. All chemicals or products of a hazardous or toxic nature that may be used or stored on the site must be stored under cover and isolated firom the storm drainage system. No hydraulic connection hemeen the car washing area and the stom drainage system shall he allowed. A discharge authorization issued by the City's Industrial Pretreatment Program may be required fimr any discharge of washw'ater to the sanitary sewer. The design of the fueling area and underground storage tank area must meet City standards. p 'dma jmir surd padppas