Granite Construction Company 5/1/2018

I 1 7-09.AP7 2 Section 7-09, Water Mains 3 April 3, 20171 4 7-09.3(24)D Dry Calcium Hypochlorite 5 The second paragraph is revised to read: 6 7 The number of grams of 70 percent test calcium hypochlorite required for a 20-foot 8 length of pipe equals 0.238 x d2, in which "d" is the diameter in inches. I 9 10 8-01.AP8 11 Section 8-01, Erosion Control and Water Pollution Control 12 January 11, 2018 13 8-01.1 Description 14 This section is revised to read: 15 16 This Work consists of furnishing, installing, maintaining, removing and disposing of best 17 management practices (BMPs), as defined in the Washington Administrative Code 18 (WAC) 173-201A, to manage erosion and water quality in accordance with these 19 Specifications and as shown in the Plans or as designated by the Engineer. I 20 21 The Contracting Agency may have a National Pollution Discharge Elimination System 22 Construction Stormwater General Permit (CSWGP) as identified in the Contract Special 23 Provisions. The Contracting Agency may or may not transfer coverage of the CSWGP to 24 the Contractor when a CSWGP has been obtained. The Contracting Agency may not 25 have a CSWGP for the project but may have another water quality related permit as 26 identified in the Contract Special Provisions or the Contracting Agency may not have111 27 water quality related permits but the project is subject to applicable laws for the Work. 28 Section 8-01 covers all of these conditions. 29 30 8-01.2 Materials 31 The first paragraph is revised to read: 32 I 33 Materials shall meet the requirements of the following sections: 34 35 Corrugated Polyethylene Drain Pipe 9.05.1(6) 36 Quarry Spalls 9-13 37 Erosion Control and Roadside Planting 9-14 38 Construction Geotextile 9-33 39I 40 8-01.3(1) General 41 This section is revised to read: 421 43 Adaptive management shall be employed throughout the duration of the project for the 44 implementation of erosion and water pollution control permit requirements for the 45 current condition of the project site. The adaptive management includes the selection 46 and utilization of BMPs, scheduling of activities, prohibiting unacceptable practices, 47 implementing maintenance procedures, and other managerial practices that when used 48 singularly or in combination, prevent or reduce the release of pollutants to waters of the I 49 State. The adaptive management shall use the means and methods identified in this 50 section and means and methods identified in the Washington State Department of 51 Transportation's Temporary Erosion and Sediment Control Manual or the Washington HOT MIX ASPHALT OVERLAY-2018 PAGE 24 OF 53 March 6,2018 WORK ORDER#3667 AMENDMENTS TO STANDARD PROVISIONS