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111 <br /> 1 State Department of Ecology'sManagement Stormwater Mana ement Manuals for construction <br /> 2 stormwater. <br /> I 3 <br /> 4 The Contractor shall install a high visibility fence along the site preservation lines shown <br /> 5 in the Plans or as instructed by the Engineer. <br /> I 6 <br /> 7 Throughout the life of the project, the Contractor shall preserve and protect the <br /> 8 delineated preservation area, acting immediately to repair or restore any fencing <br /> I 9 damaged or removed. <br /> 10 <br /> 11 All discharges to surface waters shall comply with surface water quality standards as <br /> I 12 defined in Washington Administrative Code (WAC) Chapter 173-201A. All discharges to <br /> 13 the ground shall comply with groundwater quality standards WAC Chapter 173-200. <br /> 14 <br /> 15 The Contractor shall comply with the CSWGP when the project is covered by the <br /> I16 CSWGP. Temporary Work, at a minimum, shall include the implementation of: <br /> 17 <br /> 18 1. Sediment control measures prior to ground disturbing activities to ensure all <br /> 19 discharges from construction areas receive treatment prior to discharging from <br /> 20 the site. <br /> 21 <br /> I 22 2. Flow control measures to prevent erosive flows from developing. <br /> 23 <br /> 24 3. Water management strategies and pollution prevention measures to prevent <br /> I 25 contamination of waters that will be discharged to surface waters or the <br /> 26 ground. <br /> 27 <br /> 28 4. Erosion control measures to stabilize erodible earth not being worked. <br /> 29 <br /> 30 5. Maintenance of BMPs to ensure continued compliant performance. <br /> 31 <br /> I32 6. Immediate corrective action if evidence suggests construction activity is not in <br /> 33 compliance. Evidence includes sampling data, olfactory or visual evidence <br /> 34 such as the presence of suspended sediment, turbidity, discoloration, or oil <br /> I 35 sheen in discharges. <br /> 36 <br /> 37 To the degree possible, the Contractor shall coordinate this temporary porary Work with <br /> I 38 permanent drainage and erosion control Work the Contract requires. <br /> 39 <br /> 40 Clearing, grubbing, excavation, borrow, or fill within the Right of Way shall never expose <br /> I 41 more erodible earth than as listed below: <br /> 42 <br /> Western Washington Eastern Washington <br /> I (West of the Cascade <br /> Mountain Crest) (East of the Cascade <br /> Mountain Crest) <br /> May 1 through 17 Acres April 1 through 17 Acres <br /> I September 30 October 31 <br /> October 1 November 1 <br /> through April 5 Acres through March 5 Acres <br /> 30 31 <br /> I 43 <br /> 44 The Engineer may increase or decrease the limits based on project conditions. <br /> 45 <br /> i <br /> HOT MIX ASPHALT OVERLAY-2018 PAGE 25 OF 53 March 6, 2018 <br /> I WORK ORDER#3667 <br /> AMENDMENTS TO STANDARD PROVISIONS <br />