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Related Maintenance Activities - Material Disposal ' Performed on an as-needed basis The accumulated sediment found in stormwater treatment StormFilter units are often just one of many structures in a more and conveyance systems must be handled and disposed of in comprehensive stormwater drainage and treatment system. accordance with regulatory protocols. It is possible for sediments to contain measurable concentrations of heavy metals and In order for maintenance of the StormFilter to be successful, it organic chemicals(such as pesticides and petroleum products). is imperative that all other components be properly maintained. Areas with the greatest potential for high pollutant loading The maintenance/repair of upstream facilities should be carried include industrial areas and heavily traveled roads. out prior to StormFilter maintenance activities. Sediments and water must be disposed of in accordance with In addition to considering upstream facilities, it is also important all applicable waste disposal regulations.When scheduling to correct any problems identified'in the drainage area. Drainage maintenance, consideration must be made for the disposal of area concerns may include:erosion problems, heavy oil loading, solid and liquid wastes.This typically requires coordination with and discharges of inappropriate materials. a local landfill for solid waste disposal. For liquid waste disposal a number of options are available including a municipal vacuum truck decant facility, local waste water treatment plant or on-site treatment and discharge. 1 ' A RECYCLED INV PAPER N Mt . � ON PRODUCTS 800.338.1122 www.contech-cpi.com ' Support • Drawings and specifications are available at contechstormwater.com. • Site-specific design support is available from our engineers. ©2009 CONTECH Construction Products Inc. CONTECH Construction Products Inc. provides site solutions for the civil engineering industry. CONTECH's portfolio includes bridges,drainage,sanitary sewer,stormwater and earth stabilization products. For information on other CONTECH division offerings,visit contech-cpi.com or call 800.338.1122 Nothing in this catalog should be construed as an expressed warranty or an implied warranty of merchantability or fitness for any particular purpose. See the CONTECH standard quotation or acknowledgement for applicable warranties and other terms and conditions of sale. The product(s)described may be protected by one or more of the following US patents: 5,322,629;5,624,576;5,707,527;5,759,415;5,788,848;5,985,157;6,027,639;6,350,374;6,406,218; 6,641,720;6,511,595;6,649,048;6,991,114;6,998,038;7,186,058;related foreign patents or other patents pending.