Stellar J Corporation 5/15/2019 Change Order 1

Project: Process Water Pump Station Change Order No.1 Change Order Effective Date: April 15, 2019 t " CONTRACTOR � , , By ' r Date: q/2 7 / �? Officer Exhibit A - Description of Changed Work This Change Order No. 1 adds one new item to the Contract as shown below. Added Item New Item#4—Furnish Automatic Duplex Priming System.Add new item#4 entitled, "Furnish Automatic Duplex Priming System"at the agreed to lump sum price of$38,725.00 by adding One(1) to the Contract, resulting in a$38,725.00 increase to the Contract price. This price includes four(4) additional priming valves and one(1) water trap. JUSTIFICATION New Item#4—Furnish Automatic Duplex Priming System. The current priming system in use at the Process Water Pump Station is inadequate due, to the upgrades currently being constructed as part of this project. The additional pumps being installed have higher inlet elevations and a larger combined suction volume than the existing pumps, and therefore, a larger capacity pump priming system is required to ensure that the water pumps remain in a flooded condition, which will provide water for the WFP processes at all times, which is critical. This upgraded pump priming system provides the increased priming capacity necessary to prime the new pump system at the City of Everett Water Filtration Plant(WFP). This new item is being added to account for costs to purchase this Automatic Duplex Priming System. Total Cost of Change Order No. 1: $38,725.00 Contract Time: There are Thirty(30) Calendar days added to the Contract time in Change Order No. 1,to allow for time to acquire,install, and test Automatic Duplex Priming System onsite at the Process Water Pump Station. Page 3 of 3