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CalPortland implements a number of BMPs on-site to reduce, eliminate, or prevent the <br />pollution of stormwater from the site. These include: <br />Critical Elements: <br />1. Preserve Vegetation/Clearing Limits: The planned current activities at the site <br />will involve removing some grasses to a limited extent.. The stockpiling and <br />haul road activity will be completely within the filled area of the property. The <br />site contains a restored wetland area on the northeast portion of the property. <br />The wetland area is marked with a split rail fence. <br />2. Establish Construction Entrance: A construction entrance and exit will be <br />established on the property. Both entrance and exit are constructed of 4" <br />quarry spalls. Additionally a road will be established on top of the property <br />construction spalls. The stabilized entrance will be inspected during the CESCL <br />inspection and repairs made as needed. The construction entrance and exit <br />will also be swept on an as-needed basis to control sediment run-off. <br />3. Control Flow Rates: Drainage from the property is via sheet to the north side <br />of the property where the water enters an established ditch and flow control <br />system. Drainage across the property will be maintained using BMP's to <br />prevent erosion and rilling. Ground infiltration also occurs on this parcel and <br />will be utilized as possible during the project. <br />4. Install Sediment Controls: The site has many sediment controls in place as <br />follows: <br />5 <br />6 <br />7 <br />8 <br />9 <br />a. The entire site will be surrounded by a silt fence <br />b. The Cut slopes will be compacted and stabilized or <br />c. The cut slopes will be fully vegetated by grasses <br />d. Exposed soil is graded appropriately and compacted and then vegetated <br />or covered during the wet season <br />e. Check dams will be used as necessary to control erosion at the entrance <br />and exit <br />f. Construction entrance and exit are built of 4" quarry spalls <br />g. The truck transit road is built of quarry spalls to prevent the exposure of <br />unvegetated soil to precipitation. <br />Stabilize Soils: Soils which are exposed in the wet season will be compacted <br />and covered with plastic or straw consistent with the guidelines of the permit <br />Protect slopes: The slopes on all sides of the property are designed to a <br />standard 2:1 ratio. The slopes will be fully vegetated and inspected during the <br />CESCL inspection for erosion. <br />Protect Drain Inlets: Not applicable on this project <br />Stabilize Channels: The site design was approved by the City of Everett for <br />sheet flow runoff. There are no channels on the property. <br />Control Pollutants: The site will be kept clean by implementing good <br />housekeeping procedures. The CESCL will check the site for cleanliness during <br />the weekly inspection and make changes as necessary. Further no vehicle <br />maintenance or fueling will be performed on the property. <br />2� I <br />