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I <br /> 1 1 <br /> 2 1. Sediment control measures prior to ground disturbing activities to ensure all <br /> I <br /> 3 <br /> 4 discharges from construction areas receive treatment prior to discharging from the <br /> site. <br /> 5 <br /> I <br /> 6 <br /> 7 2. Flow control measures to prevent erosive flows from developing. <br /> 8 3. Water management strategies and pollution prevention measures to prevent <br /> 9 contamination of waters that will be discharged to surface waters or the ground. <br /> I 10 <br /> 11 4. Erosion control measures to stabilize erodible earth not being worked. <br /> 12 <br /> I 13 5. Maintenance of BMPs to ensure continued compliant performance. <br /> 14 <br /> 15 6. Immediate corrective action if evidence suggests construction activity is not in <br /> I <br /> 16 <br /> 17 compliance. Evidence includes sampling data, olfactory or visual evidence such <br /> as the presence of suspended sediment, turbidity, discoloration, or oil sheen in <br /> 18 discharges. <br /> I <br /> 29 <br /> 20 To the degree possible, the Contractor shall coordinate this Work with permanent drainage <br /> 21 and roadside restoration Work the Contract requires. <br /> 22 <br /> I <br /> 23 <br /> 24 Clearing, grubbing, excavation, borrow, or fill within the Right of Way shall never expose <br /> more erodible earth than as listed below: <br /> 25 <br /> Western Washington Eastern Washington <br /> (West of the Cascade (East of the Cascade <br /> Mountain Crest) Mountain Crest) <br /> I17 May 1 through April 1 through <br /> September 30 Acres October 31 17 Acres <br /> October 1 November 1 <br /> through April 5 Acres through March 5 Acres <br /> I26 30 31 <br /> 27 The Engineer may increase or decrease the limits based on project conditions. <br /> I 28 <br /> 29 Erodible earth is defined as any surface where soils, grindings, or other materials may be <br /> 30 capable of being displaced and transported by rain, wind, or surface water runoff. <br /> 31 <br /> I32 Erodible earth not being worked, whether at final grade or not, shall be covered within the <br /> 33 specified time period (see the table below), using BMPs for erosion control. <br /> 34 <br /> I Western Washington Eastern Washington <br /> (West of the Cascade (East of the Cascade <br /> Mountain Crest) Mountain Crest) <br /> October 1 October 1 <br /> through April 2 days through June 5 days <br /> 30 maximum 30 maximum <br /> I May 1 to 7 days November 1 10 days <br /> September 30 maximum through March maximum <br /> I City of EverettPage AM 71 Amendments <br /> Everett Station 80 Stall Parking Expansion June 2019 <br />