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• <br /> l•��J <br /> ' % %�►�:� ::■ ®'-! Operation and Maintenance <br /> STORMWATER <br /> S <br /> The Stormwater requirements for treating runoff in <br /> compliance with the Clean Water Act. <br /> Management StormFilter <br /> Through independent third party studies, it <br /> Vault, Cast - Place, and Linear Units has been demonstrated that the StormFilter <br /> is highly effective for treatment of first flush <br /> flows and for treatment of flow -paced flows <br /> Important: These guidelines should be used during the latter part of a storm. In general, <br /> as a part of your site stormwater the StormFilter's efficiency is highest when <br /> management plan. pollutant concentrations are highest. The <br /> primary non -point source pollutants targeted <br /> Description for removal by the StormFilter are: <br /> The Stormwater Management StormFilter0 suspended solids (TSS), oil and grease, <br /> (StormFilter) is a passive, flow- through, soluble metals, nutrients, organics, and <br /> stormwater filtration system. The system is <br /> trash and debris. <br /> comprised of one or more vaults that house Sizing <br /> rechargeable, media - filled, filter cartridges. <br /> The StormFilter works by passing The StormFilter is sized to treat the peak <br /> stormwater through the media - filled flow of a water quality design storm. The <br /> cartridges, which trap particulates and • peak flow is determined from calculations <br /> adsorb materials such as dissolved metals based on the contributing watershed <br /> and hydrocarbons. Once filtered through the hydrology and from a design storm <br /> media, the treated stormwater is directed to magnitude set by the local stormwater <br /> a collection pipe or discharged into an open management agency. The particular size of <br /> channel drainage way. a StormFilter unit is determined by the <br /> number of filter cartridges (see Figure 1) <br /> The StormFilter is offered in multiple required to treat this peak flow. <br /> configurations, including vault, linear, catch <br /> basin, manhole, and cast -in- place. The The flow rate through each filter cartridge is <br /> vault, linear, manhole, and catch basin adjustable, allowing control over the amount <br /> models utilize pre- manufactured units to of contact time between the influent and the <br /> ease the design and installation processes. filter media. The maximum flow rate <br /> The cast -in -place units are customized for through each cartridge can be adjusted to <br /> larger flows and may be either covered or between 5 and 15 gpm using a calibrated <br /> uncovered underground units. restrictor disc at the base of each filter <br /> cartridge. Adjustments to the cartridge flow <br /> Purpose rate will affect the number of cartridges <br /> The StormFilter is a passive, flow- through, <br /> required to treat the peak flow. <br /> stormwater filtration system designed to <br /> improve the quality of stormwater runoff <br /> from the urban environment before it enters <br /> receiving waterways. It is intended to <br /> function as a Best Management Practice <br /> (BMP) to meet federal, state, and local <br /> ©2006 CONTECH Stormwater Solutions Toll -free: 809.548.4667 1 of 8 <br /> cornechstormwater.com Vault. CIP and Linear stormFllter Operation one Maintenance Guidelines E / % \, c <br />