HDR Engineering 4/24/2018 Amendment 1

Exhibit A City of Everett Water, Sewer and Surface Water Connection Charge Study Amendment 1 -Scope of Work and Estimated Fees The City of Everett (City) retained HDR Engineering, Inc. (HDR) to conduct a review of the City's water, sewer, and surface water connection charges. As the study has progressed, the scope of the services has expanded and additional services have been requested by the City. This Amendment is intended to outline these additional services and the estimated fees associated with them. Amended Scope of Services The original scope of services for the connection fee study, along with the associated tasks and deliverables are not eliminated or revised by this amendment. This amendment for the connection fee study supplements or adds to the original scope of services, the associated tasks and deliverables. Provided below is a detailed scope of work for the amended connection fee study. Task 1: Technical Analysis — Updated Connection Charges The City now has additional and more current asset data for each of the connection charge studies. Given that,the City has requested that HDR update the water, sewer and surface water connection fee analyses. To accomplish this, HDR will need to receive the City's updated asset data, review and sort the data by utility, as appropriate, and then input that data into the connection charge models. Included within this task is the time associated with HDR's internal quality control reviews. Deliverables from Task 1— • An updated water, sewer and surface water connection charge analyses using the City's most current asset data Task 2: Additional Project Meeting Given the updated connection charges, HDR has added one additional internal project meeting with the City to review the updated analysis, along with the key assumptions used in the study. It is presumed that the result of this meeting is that the water, sewer and surface water connection charges will be finalized and ready for inclusion within the City's draft final reports. A limited amount of time has been included within Task 1 for minor updates and revisions to the analysis as a result of this internal project meeting. Deliverables from Task 2— • An internal project meeting with the City to review the updated draft final connection charge analyses developed as a part of Task 1 Task 3: Model Training and Support The City has requested model training from HDR in the use of the model developed by HDR. The purpose of this training is to provide an overview and understanding of the model,the model's Page A-1