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viii. Ensure that concrete/gunite supply trucks or concrete/plaster operations <br /> do not discharge wash water into a street, gutter, or storm drain. <br /> ix. Equipment fueling area: use a designated area away from the storm <br /> drainage facility; use secondary containment and spill rags when fueling; <br /> discourage "topping off' of fuel tanks; place a stockpile of absorbent <br /> material where it will be readily accessible; check vehicles and equipment <br /> regularly for leaking oils and fuels; and dispose of rags and absorbent <br /> materials promptly and properly. Use of an off-site fueling station is <br /> strongly encouraged. <br /> x. Concrete wash area: 1) locate wash out area away from storm drains and <br /> open ditches; 2) construct a temporary pit large enough to store the liquid <br /> and solid waste; 3) clean the pit by allowing concrete to set; 4) break up <br /> the concrete; and then 5) recycle or dispose of properly. <br /> xi. Equipment and vehicle maintenance area: use a designated area away <br /> from the storm drainage facility; always use secondary containment and <br /> keep stockpile of cleanup materials nearby; regularly inspect vehicles and <br /> equipment for leaks and repair quickly or remove from the project site; and <br /> train employees on spill cleanup procedures. Use of an off-site repair <br /> shop is strongly encouraged. <br /> 2. Within 30 days of the installation and testing of the stormwater treatment and <br /> hydromodification facilities, the designer of the site shall submit a letter to City <br /> Project Inspector/Construction Services Manager certifying the devices have <br /> been constructed in accordance with the approved plans for stormwater and C3 <br /> design for the project The letter shall request an inspection by City staff. <br /> C. Operation and Maintenance Requirements <br /> The project shall comply with the operation and maintenance requirements of the <br /> NPDES Permit. All regulated projects (such as commercial, industrial, residential <br /> subdivision, mixed use, or public projects) that create and/or replace 10,000 square feet <br /> or more of impervious areas (5,000 square feet for auto service facilities, retail gasoline <br /> outlets, restaurants, and uncovered parking lots) shall enter into a recorded Stormwater <br /> Operation and Maintenance (O&M) Agreement for treating stormwater runoff from the <br /> site in perpetuity. The agreement is required to be recorded at the Alameda County <br /> Recorder's Office in a format approved by the City. <br /> 1. The Operation and Maintenance Agreement shall clarify that the property <br /> owner(s) of the site shall be responsible for the following in perpetuity: <br /> a. Maintaining all private stormwater treatment measures on the project site. <br /> b. Annually submitting a maintenance report to the City Operations Services <br /> Department, Utilities Division, addressing the implementation of the <br /> Operation and Maintenance Agreement requirements. <br /> Page 16 of 22 <br />