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CONSULTANT will disaggregate base sanitary flows, dry weather flows, and wet weather flows to estimate inflow and infiltration quantities upstream of each data collection point. CONSULTANT will calibrate the model to a 7-day EPS for both dry and wet weather time periods. CONSULTANT will adjust model parameters to balance the model and meet the goals of the UK's Chartered Institution of Water and Environmental Management's (CIWEM's) Wastewater Planning Users Group(WaPUG)Code of Practice for the Hydraulic Modeling of Sewer Systems. All exceptions will be justified and documented. CONSULTANT will provide statistics for model calibration results. 3.3.5.3 REUSE DISTRIBUTION SYSTEM CONSULTANT will develop a calibration plan to identify needed flow and pressure criteria for field data collection over a 1-month period. Potential data collection includes up to 6 strap-on flow meters with data recording on exposed system mains. If mains are not exposed, the COUNTY will expose and protect the target pipe. COUNTY will be responsible for setup, cleanup, traffic control, access, and customer notification ahead of testing, as needed. The COUNTY will install the flow meters and collect the data on a monthly basis. CONSULTANT will review the data collected and present findings from this data during one progress meeting. CONSULTANT will adjust model parameters to balance the model to meet the calibration goals as indicated in the AWWA M32 "Computer Modeling Water Distribution Systems" Manual. All exceptions will be justified and documented. CONSULTANT will provide statistics for model calibration results. If SCADA data is available, the hydraulic model will be calibrated to a 7-day (168 hour) Extended Period Simulation (EPS). Time series data validation will be considered compared when the model is able to replicate the observed trends and minimum and maximum points. Individual time points in time series will not be compared. 3.4 Asset Management and Condition Assessment 3.4.1 Asset Management Review and Workshop (4 hours, in-person) CONSULTANT will review COUNTY's existing asset inventory, vertical asset hierarchy, and management systems and platforms to assess workflows and needs for asset management. CONSULTANT will review data and coordinate with the COUNTY to complete the asset inventory templated by Arcadis in 2018. CONSULTANT will provide the draft asset hierarchy to the COUNTY. CONSULTANT will facilitate a four-hour, in-person workshop to discuss the criteria, scoring, and weighting developed by Arcadis, as well as the asset inventory, and make changes, as needed, prior to further condition assessment efforts. CONSULTANT will compile the hierarchy and inventory into Draft IWMP Illus 2' Existing System Performance. 3.4.2 Desktop Condition and Risk Assessments CONSULTANT will perform unit process/network level desktop condition assessments of the COUNTY's vertical and linear assets through reviews of the COUNTY's asset inventory in terms of age, typical useful life. and completed work orders. CONSULTANT will also incorporate findings from previous condition assessment data and reports. CONSULTANT will compile condition ratings into a draft vertical asset hierarchy proposed in Task 3.4.1. 8 308