Stellar J Corporation 5/4/2020 Change Order 3

Project: Process Water Pump Station Change Order No. 3 Change Order Effective Date: March 27, 2020 • Two existing Variable Frequency Drives (VFDs) voltage relays tripped when the pump system was started up. • A Power Monitoring Meter was used to monitor the relay tripping and to diagnose the relay tripping problem. A third party was utilized for the power quality metering monitoring, which caused delays in scheduling and implementation of the monitoring. • Several of the new pump seals leaked and had to be tested and ultimately replaced. Diagnosis and replacement caused delays. • Hand-Off-Auto (HOA) switches not working properly. Time to diagnose the problem with the HOA switches caused delays. • Some of the new pumps were initially running erratically , were hot to the touch when running, and/or had cavitation issues. These issues were complex and took time to resolve. • Difficulties with the software implementation,programming, and tying the new pump system in the Process Water Pump Station into the greater Water Filter Plant control system, which caused delays. • Fans/HVAC unit running erratically and noisily, which required additional work by the contractor, causing delays. • There were multiple issues occurring during the startup phase of the Process Water Pump System, which led to delays to identify and ultimately resolve and fix the issues. • Other miscellaneous additional work or changes that led to additional work, not part of the original Contract, which caused delays. • Contractor worked with City to add redundancy in system that was not originally part of the contract. This work could not have been anticipated and additional time and costs were required to design, fabricate, and source products that would meet the City of Everett Water Filtration Plant Staffs needs. Total cost of Change Order No. 3 is $12,572.00 Page 4 of 4