HomeMy WebLinkAboutAMEND Water Dist System Hydr Model Planning Study under purchase Order 114532 2012 CITY OF OSHKOSH
DEPARTMENT OF PUBLIC WORKS
215 CHURCH AVENUE, P.O. BOX 1130, OSHKOSH, WI 54903-1130
PHONE: (920) 236-5065 FAX (920) 236-5068
LETTER OF TRANSMITTAL
To: Ms. Linda Mohr Date: June 6, 2012
CH2M HILL Engineers, Inc. Subject: Amendment No. 1
135 South 84th Street Water Distribution System Model and
Milwaukee, WI 53214 Planning Study
Please find: ® Attached ❑ Under Separate Cover
❑ Copy of Letter ❑ Contracts ® Amendment ❑ Report ❑ Agenda
❑ Meeting Notes ❑ Photos ❑ Mylars El Change Order ❑ Plans
❑ Specifications ❑ Estimates ❑ Diskette ❑ Zip Disk ❑ Other
Quantity Description
1 Executed Amendment No. 1
These are being transmitted as indicated below:
❑ For Approval ® For Your Use ❑ As Requested ❑ For Review& Comment
Remarks:
Enclosed is the executed Amendment No. 1 for the Water Distribution System Model and Planning
Study.
If you have any questions, please contact us.
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Amendment No. 1
This Amendment is issued pursuant to the Standard Agreement for Professional Services fully executed
on August 30,2010,under City of Oshkosh Purchase Order No. 114532 with respect to Water
Distribution System Model and Planning Study.
Specific Services:As stated in Attachment A,Scope of Services,incorporated herein by reference.
Compensation:As stated in Attachment A,Scope of Services incorporated herein by reference.
Work Schedule:July 2012 through September 2012
The Authorized Representatives designated below are authorized to act with respect to the Amendment.
Communications between the parties shall be between parties and their consultants or subcontractors,
through the Authorized Representatives:
For the Client For CH2M HILL Engineers,Inc.
Name:City of Oshkosh Name: CH2M HILL,Milwaukee
Address: Address:
215 Church Avenue,Oshkosh,WI 54903 135 S.84th Street, Milwaukee,WI 53214
Telephone: 920.232.5365 Telephone:414.272.2426
This Amendment No. 1 is effective this(date) •
Accepted for Client by:
hereby t;�. ,F w provisions
, sig YQeen certity made to pay Th r the c liability ary which will
Signature
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Accepted for CH2M HILL by: Kurt Hellermann
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ATTACHMENT A—SCOPE OF SERVICES
Water Distribution System Hydraulic Model and
Planning Study - Supplement
The purpose of this scope of services is to amend City of Oshkosh(City) Purchase Order No. 114532 for
the Water Distribution System Hydraulic Model and Planning Study.
To refine and supplement the hydraulic analyses that were conducted and documented in the DRAFT
FINAL Report for the City of Oshkosh Water Distribution System Hydraulic Model and Planning Study,
2011, CH2M HILL has provided additional modeling,data evaluation,and analyses as part of the ongoing
study.These activities included:
• Conduct the system fire flow analysis for a required residential fire flow requirement of 1,000
gallons per minute(gpm)instead of 500 gpm
• Reviewed the City's geographic information system (GIS)shape files for consistency with future
land use maps and billing information
• Modified hydraulic demand nodes based on City personnel's knowledge of the system,rather
than mapping data
• Refined the format of some information included in the report
CH2M HILL will complete following analyses and include the findings in the FINAL Report for the City of
Oshkosh Water Distribution System Hydraulic Model and Planning Study,2012:
• Update the model file to reflect all of the watermain improvement projects completed in 2011.As
provided in 2010,the City will supply a list of the improvements and hand markups of the drawings
of installed watermains.
• Develop full-size maps to depict(1)available fire flow and current land use and(2)available fire flow
and planned 2030 land use
• Expand the list capital improvement projects to include fire flow deficient watermains(71 additional
deficiencies)that result when residential fire flow requirement is changed from 500 to 1,000 gallons
per minute; use the model to identify and prioritize projects in terms of greatest reduction in fire
flow deficiency
• Identify areas where land use is anticipated to change between now and 2030;for example,areas
that are currently residential and will transition to commercial land use. In areas of transitioning
land use,identify water main improvement projects that prepare the City to meet the needs of the
future land use. It is assumed that there will be less than 20 deficiencies in these areas.
Deliverables. The results of these analyses and full-sized maps will be incorporated in the Final Report
for the City of Oshkosh Water Distribution System Hydraulic Model and Planning Study,2012 to
complete the study report.Ten hard copies and ten electronic copies of the study report,maps,and
supporting appendices will be provided.
Engineering Services Compensation
The estimated level of effort and professional services fee are summarized in Table 1.
TABLE 1.ENGINEERING SERVICES
Activity Labor Hours Cost
(Labor and Expenses)
Additional Completed Analyses
Additional model scenario runs; 100 $14,000
Additional review of City data;
Report revisions
Modeling and Documentation to Complete
Planning Study Report
Update Model with Completed 2011 160 $24,000
Projects;
Create Available Fire Flow/Land Use Maps;
Indentify watermain improvements for 71
Additional Deficiencies;
Identify areas planned land use changes
between 2010 and 2035;Identify watermain
improvements as needed for these areas;
Revise Hydraulic Model and Planning Study
Report to incorporate these analyses;submit
final report copies,maps
TOTAL $38,000