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I <br /> 1 groundwater shall comply with groundwater quality standards WAC Chapter 173-200. The <br /> 2 Contractor shall comply with the CSWGP when the project is covered by the CSWGP. <br /> 3 <br /> 4 Work, at a minimum; shall include the implementation of: <br /> 5 <br /> 6 1. Sediment control measures prior to ground disturbing activities to ensure all <br /> 7 discharges from construction areas receive treatment prior to discharging from <br /> 8 the site. I <br /> 9 <br /> 10 2. Flow control measures to prevent erosive flows from developing. <br /> 11 <br /> 12 3. Water management strategies and pollution prevention measures to prevent <br /> 13 contamination of waters that will be discharged to surface waters or the ground. <br /> 14 <br /> 15 4. Erosion control measures to stabilize erodible earth not being worked. <br /> 16 <br /> 17 5. Maintenance of BMPs to ensure continued compliant performance. <br /> 18 <br /> 111 <br /> 19 6. Immediate corrective action if evidence suggests construction activity is not in <br /> 20 compliance. Evidence includes sampling data, olfactory or visual evidence such <br /> 21 as the presence of suspended sediment, turbidity, discoloration, or oil sheen in ig <br /> 22 discharges. 111 <br /> 23 <br /> 24 To the degree possible, the Contractor shall coordinate this Work with permanent drainage <br /> 25 and roadside restoration Work the Contract requires. <br /> 26 <br /> 27 Clearing, grubbing, excavation, borrow, or fill within the Right of Way shall never expose <br /> 28 more erodible earth than as listed below: I29 <br /> Western Washington Eastern Washington <br /> (West of the Cascade (East of the Cascade <br /> Mountain Crest Mountain Crest) <br /> May 1 through 17 Acres April 1 through 1 17 Acres <br /> Se.tember 30 October 31 <br /> October 1 November 1 <br /> through April 5 Acres through March 1 5 Acres <br /> 3031 <br /> 30 <br /> 31 The Engineer may increase or decrease the limits based on project conditions. I <br /> 32 <br /> 33 Erodible earth is defined as any surface where soils, grindings, or other materials may be <br /> 34 capable of being displaced and transported by rain, wind, or surface water runoff. <br /> 35 <br /> 36 Erodible earth not being worked, whether at final grade or not, shall be covered within the <br /> 37 specified time period (see the table below), using BMPs for erosion control. <br /> 38 <br /> Western Washington Eastern Washington <br /> (West of the Cascade (East of the Cascade I <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 /> CITY OF EVERETT AMENDMENTS 111 <br /> PACIFIC AVENUE TO INTERURBAN TRAIL BICYCLE SAFETY PROJECT 8/12/2019 <br /> STATE FUND#HLP PB17(014); COE#PW3688 Page AM-70 <br />