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t 1 <br /> 3. Revise modeling calculations—Revise orifice#1 and#3 size in model to 0.5" in model to <br /> match plan and minimum orifice size requirements. <br /> We have a detention system that has 3'or less of storage so we do not have to model the <br /> system with an orifice of 0.5"or less. <br /> 4. Design detention system to accommodate H-20 loading. Indicate Module model number <br /> on the plans. <br /> The system is designed to accommodate H-20 loading wih the two feet of cover, as <br /> shown. <br /> 5. Revise detail 4 on C4.1 to require impermeable liner between soil/stone interface, per <br /> detail "A"of Detail 2 on sheet C4.3. <br /> Please see revised detail. <br /> 6. Show detention system inlet pipe location on plan. Show how roof drains will be <br /> plumbed to the detention system. <br /> The inlet pipe is shown in the southeast corner of the building. The Aquaswirl system is <br /> located outside the building for easier maintenance. <br /> 7. Show location of maintenance row on plans. <br /> 1 don't understand this question. The Aqualswirl pretreatment system was located <br /> outside the building as well as the control structure. These two systems introduce ports, <br /> outside of the building, that can be used to maintain the system. <br /> 8. Provide information to City on proposed access location for vactor truck, confirm access <br /> to 10"ports. <br /> All the 10"ports are located within the drive aisle of the parking garage. <br /> 9. Do not locate panel directly below 10" Risers. <br /> What panel? There is a detail for the 10"riser on sheet C4.3. <br /> 10. Provide separate backwater valves and/or gate on outlet for detention vault and sanitary <br /> side sewer. <br /> Okay, see note. <br /> 11. Supplemental notes on detail 2 are too small to read even at full size. <br /> The detail as been made larger. <br /> PO Box 1478 • Everett, WA 98206 • Phone: (425)303-9363 <br /> Fax: (425)303-9362 • Email:info@insightengineering.net <br /> 1 <br />