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EXHIBIT #'c" <br />www.St Precast eto Mod ular srotin ter Mara gemoof Sys renis 1-877-867-6827 <br />StormTrap@ Maintenance Manual <br />1. Introduction <br />2 . Dry Detention Systems <br />3 . Wet Detention (water Quality) Systems <br />4 . Inspection Schedules for Municipalities <br />5 . Inspection Schedules for Private Development <br />6 . Inspection Process <br />7. When to Clean the System <br />8 . How to Clean the StormTrap + <br />9 . Summary <br />1. Introduction <br />The StorrnTrapO Underground S tormwater Detention System is one of the easiest systems to inspect and <br />maintain because of the open design of the stormwater chambers. All of the areas of the system that are <br />used to detain and store stormwater are com pletely accessible. torrnTrap does not recommend <br />utilizing stones around the stormwater detention systern for stormwater storage. <br />Regular inspections are recommended to assure that the system is functioning as it was designed. <br />Please call your StormTrap representative if you have questions in regards to the inspection and <br />maintenance of the StorimTrap system. The StorrnTrap Re for your area can be found <br />under the °Contact" tab of the S to rmTra pO website www.StormTrap .corn , or 1 - 877 - 867 -6872 and <br />press "0" for an Administrative Assistant. <br />2. Dry Detention Systems <br />The tormTrap System is used to collect stormwater and detain it for a period of time. The release rate <br />is determined by local building and environmental codes. The system is designed to reduce downstream <br />flooding after a stormwater event. This is the same concept that is used to design above ground <br />stormwater detention ponds. Underground detention is utilized in place of detention ponds to allow for <br />additional development such as parting lots, public pans, highways, buildings, etc. <br />3. wet Detention Water Quality) Systems <br />S ome of the StormTrap@ Systems are designed to have a permanent pool of water in the system. This <br />pool of water is designed to remove and collect some of the small solid particles from the stormwater. <br />These pools shall be cleaned as needed, but at least annually, to ensure they meet their intended design. <br />4 . Inspection Schedules for Municipalities <br />The StormTrap Storrnwater Detention System should be inspected whenever the upstream and <br />downstream etch basins and storrnwater pipes of the stormwater collection system are inspected or <br />maintained, but not less than annually. This will economize the cost of the inspection if it is done at the <br />same time the Municipal crews are visiting the area. <br />SINGLE G EF THE PRECAS PRE rAD VA N r E! DOUB LErJMP <br />i1SwT OMMM BMW r', M W! a Wm IYIwRa"If adlR+rtr� Mlrl+ flPn <br />