Thomco Construction Inc. 6/14/2021

I CITY OF EVERETT SPECIAL PROVISIONS Assembly 7-12.3 Construction Requirements Supplement 7-12.3 by adding the following: Install valve box centered on the operator nut. Provide 3-inch thick x 2-feet x 2-feet HMA concrete pad around valve boxes located within gravel surface. Provide one valve stem extension, minimum 12-inch length, in accordance with COE Standard Drawing No. 505 when the top of the valve operating nut is more than three feet below finished grade. Provide equipment, labor, tools, materials and miscellaneous parts to perform pavement sawing, pavement removal, excavations, shoring,traffic control and other Work required to prepare the site for City Utility Department personnel to install the City supplied tapping sleeve and valve assembly. Notify City Utility Department a minimum of five business days for each tap being made. The Utility Department will determine the date and time to make each tap. Expose the water main being hot tapped, including properly shoring the excavation in ' accordance with requirements of WISHA, RCW 49.17 including WAC 296-155. Should City personnel determine the excavation and shoring do not meet the requirements of WISHA, RCW 49.17, including WAC 296-155, City personnel will notify Contractor to make necessary modifications to bring the excavation and shoring into compliance prior to City personnel entering the trench. Once the conditions are deemed safe for City personnel to enter the trench, City will install the tapping sleeve and valve assembly and Utility Department personnel will perform the hot tapping of the existing main. . Upon City Utility Department personnel completing installing and testing the tapping sleeve and valve assembly. City Utility Department personnel will connect to Contractor's installed pipe upon Contractor's successful completion and testing of Contractor installed water main. Backfill, compact, and restore the area. Where shown on the Plans, adjust existing valve boxes and covers to the grade as staked or otherwise designated by the Engineer. Using riser rings to adjust the valve box to grade is not allowed. Conduct removal operations conducted to prevent damage to the valve boxes. Replace ' parts or materials damaged due to the Contractor's operations at his expense. Conduct valve box adjustments so the final adjusted valve box allows full operation of the valve. Remove debris from the adjusted valve boxes to ensure full valve operation. Delete the third sentence of the first paragraph in 7-12.3(1) and substitute the following: Where shown on the Plans, provide valve marker post with the exposed portion having the letter "V" and the distance in feet to the valve stenciled in black paint on the post. ' Provide a two inch high stencil to produce the letters and numerals. 7-12.4 Measurement Delete all paragraphs of 7-12.4 and substitute the following: Bid items of Work completed pursuant to the Contract Documents will be measured as described in Division B — Bid Item Descriptions of these Special Provisions and Section 1-09 MEASUREMENT AND PAYMENT of the Standard Specifications. 7-12.5 Payment Delete all paragraphs of 7-12.5 and substitute the following: Payment for bid items of Work completed pursuant to the Contract Documents will be as described in Division B — Bid Item Descriptions of these Special Provisions and Section 1-09 MEASUREMENT AND PAYMENT of the Standard Specifications. Water Main Replacement"V" Division 7—STORM, SEWER,WATER April,2021 ' WO No.—UP3730 SP—179