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PENSKE TRUCK LEASING EVERETT ONSITE IMPROVEMENTS CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN Sitts & Hill Engineers, Inc. Job Number 17,710 Lead (CESCL) to oversee and enforce concrete waste management procedures. • A sign should be installed adjacent to each temporary concrete washout facility to inform concrete equipment operators to utilize the proper facilities. Contracts Incorporate requirements for concrete waste management into concrete supplier and sub- contractor agreements. Location and Placement . Locate washout area at least 50 feet from sensitive areas such as storm drains, open ditches, or water bodies, including wetlands. . Allow convenient access for concrete trucks, preferably near the area where the concrete is being poured. . If trucks need to leave a paved area to access washout, prevent track -out with a pad of rock or quarry spalls (see BMP C105: Stabilized Construction Entrance / Exit (p.270)). These areas should be far enough away from other construction traffic to reduce the likelihood of accidental damage and spills. . The number of facilities you install should depend on the expected demand for stor- age capacity. • On large sites with extensive concrete work, washouts should be placed in mul- tiple locations for ease of use by concrete truck drivers. On -site Temporary Concrete Washout Facility, Transit Truck Washout Procedures: . Temporary concrete washout facilities shall be located a minimum of 50 ft from sensitive areas including storm drain inlets, open drainage facilities, and water- courses. See Figure II4.1.7a Concrete Washout Area (P.322), Figure II4.1.7b Con- crete Washout Area (p.323), and Figure 114.1.8 Prefabricated Concrete Washout Container wlRamp (p.324). . Concrete washout facilities shall be constructed and maintained in sufficient quant- ity and size to contain all liquid and concrete waste generated by washout oper- ations. . Washout of concrete trucks shall be performed in designated areas only. . Concrete washout from concrete pumper bins can be washed into concrete pumper trucks and discharged into designated washout area or properly disposed of off -site. . Once concrete wastes are washed into the designated area and allowed to 2014 Siormwater Management Manual for Westem Washington Volume 11- Chapter 4 - Page 319 SITTS & HILL ENGINEERS, INC. 54 TACOMA, WASHINGTON