My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2014-012
CBCC
>
Official Documents
>
2010's
>
2014
>
2014-012
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
3/7/2017 11:03:40 AM
Creation date
10/1/2015 5:55:10 AM
Metadata
Fields
Template:
Official Documents
Official Document Type
Work Order
Approved Date
02/04/2014
Control Number
2014-012
Agenda Item Number
8.N.
Entity Name
Kimley-Horn and Associates Inc.
Subject
Water Distribution System Modeling Support
Work Order No. 7
Supplemental fields
SmeadsoftID
12964
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
4
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
• Consultant will collect information on the existing water system, including areas of <br />known low system pressures, and discuss approach to developing the water system <br />model with IRCU staff. <br />• Consultant will run Skelebrator to minimize model size, consisting of merging of <br />pipes in series, merge pipes at isolation valves and hydrants, maintaining knowledge <br />of valves and hydrants, etc. <br />Task 2 - Develop New Water System Hydraulic Model <br />• Consultant will review MORs and water meter data to develop unit flow rates for <br />the system. Consultant will review elevated storage and repump operations and <br />update model to include these operations <br />• Consultant will update and develop water system design and operating criteria, <br />consisting of fire flows, peak factors, system pressures, and water demand <br />allocations. Peak factors will be defined based on MOR's and distribution flow <br />meter data. Fire flows will be defined based on ISO and Fire Marshall requirements <br />and IRCU input. <br />• Using the LoadBuilder feature of WaterGEMS, preliminary system demands for <br />TODAY conditions will be developed for up to ten (10) areas for various types of <br />land uses currently identified. These land use types include single family, <br />multifamily, industrial and commercial. Meter reading sets will be evaluated and <br />compared with the demand data to develop these demands. It is assumed that <br />customer meter data is not geocoded and will need to be developed as an additional <br />or future task. It is assumed that an existing spatial relationship between the <br />customer billing database and the base parcel locations data will be manipulated to <br />complete this task and that up to 30 hours of effort is designated for this task. <br />Significant effort beyond this amount should be considered additional services. <br />• Incorporate the specific physical hydraulic features into the model. The physical <br />attributes of the existing system will be imported into the new hydraulic model. <br />Examples of these features include tank sizes, control valve settings, pump curves, <br />and several node elevations where necessary. <br />• Consultant will update elevation data provided by IRCU staff of each node <br />throughout the system that is significant. <br />• It is assumed that nominal pipe diameter will be used for modeling and be based on <br />GIS input pipe diameters database. <br />• Deliverable: A basic hydraulic model network of the water system in WaterCAD <br />v8 format with one (1) topology configuration being TODAY conditions assuming <br />maximum daily flows (MDF) and average daily flow (ADF). Output files of system <br />pressures, flows, and fire hydrant flow test results will be provided. <br />Future Tasks <br />Model results from the scope provided herein will provide initial results of a functioning <br />water system model. It is anticipated that future tasks will include more modeling runs and <br />evaluation including the following: <br />K:\WPB Civil\General\MillerUndian River County\IRCU Water System Modeling Preparation KHA Scope rev3 .doc PAGE - 2 <br />
The URL can be used to link to this page
Your browser does not support the video tag.