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PUBLIC WORKS <br /> b. O&M Manual: <br /> 1. Please use the maintenance checklists in the 2014 SWMM instead of the ones from <br /> the 2010 manual. <br /> 2. Include manufacturer's O&M procedures for the ChamberMaxx and Filterra <br /> systems. <br /> 3. Add manufacturer's contact info to the Resource Listing section. <br /> c. Plan Comments: <br /> 1. CB-9 should have a solid lid since it is downstream of the treatment device. <br /> 2. Provisions should be made for observation and cleaning of the detention facility. At <br /> a minimum please provide observation ports at the north end of both the first and last <br /> rows of arches. Consider making these two rows containment rows per Contech's <br /> specs. <br /> 3. Revised the detail for the 54" Control Structure to indicate a 0.5"minimum orifice <br /> size. Also, the callout for the notch should read 6.7"Hx0.1"W. <br /> 4. Provide a trench dam between SDMH 1 and the existing CB-4 to ensure that water <br /> from the detention facility doesn't flow off the site through the pipe bedding. A <br /> section of compacted native material for the full trench depth should be adequate. <br /> Page 3 of 3 <br />