HomeMy WebLinkAboutChange Order No. 5 with J.C. Constructors, Inc. for WWTP Expansion Project.s i. t~
Memo
To: William Berg, Jr.; Tara Green
From: Clint Dolsby, P.E., Staff Engineer
CC: Len Grady, P.E., City Engineer
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Date: 10/18/2007
Re: Proposed Agenda Item for October 23, 2007 City Council Meeting
The Public Works Department respectfully requests the following item be placed on the October 23 City
Council agenda, under consent agenda, for Council's consideration:
Change Order No. 5 for the Wastewater Treatment Plant Expansion Project. Additional work is
required for the wastewater treatment plant expansion project. This change order consists of the
following work, which is 1.03% of the original contract amount for the project. This makes the total
changes from Change Order No. 1, 2, 3, 4 and 5 equal to 7.7% of the original contract amount.
• Pothole and field adjust Secondary Clarifier RAS piping tie-in (WCD 25}
Modify electrical power feed to UV system (WCD 26)
• Add grating supports and sampling cutout at Secondary Splitter Box (WCD 29)
• Final costs for construction of Five Mile creek bridge and outfall pipe (WCD 34a)
• Realign 36"-SE pipe due to unforeseen location of Secondary Clarifier 4 effluent pipe (WCD 36)
• Post Aeration Building entry steps and paving (WCD 38)
• Removal of existing footing for uniform surface to construct Aeration Basin 1 & 2 extension
(WCD 42)
• Removal of unforeseen grout under filter media (WCD 45a)
• Revise layout and preparation of paving around Primary Clarifiers 3 & 4 (WCD 47)
• Add lighting for flag pole (RFP 022).
• Credit for the elimination of asphaltic coating at the Primary Clarifier mechanism (RFP 23)
• Removal and replacement of owner supplied Mag flow meter (RFP 26)
• Revise pipe support hangers in Aeration Basins 1 & 2 (RFP 28)
• Revise scum vault and pump slide rails at Secondary Clarifier 5 (RFP 29)
JC Constructors, Inc. submitted a cost for this change order as summarized below:
JC Constructors, Inc. $86,236.75
• Page 1
Recommended Council Action: The Public Works Department recommends that City
Council approves Change Order No. 5 for the Wastewater Treatment Plant Expansion
with JC Constructors, Inc. for $86,236.75 and authorize the Mayor to sign it.
Thank you for your consideration. Please contact me if you have any questions regarding any of these
items.
• Page 2
CHANGE ORDER 5
PROJECT: City of Meridian -Wastewater Treatment Plant Expansion Project
DATE OF ISSUANCE: October 18, 2007 EFFECTIVE DATE: :October 18, 2007
OWNER: City of Meridian
CONTRACTOR: JC Constructors, Inc.
ENGINEER: Carollo Engineers, P.C.
Page 1 of 2
You are directed to make the following changes in the Contract Documents.
• Pothole and field adjust Secondary Clarifier RAS piping tie-in (WCD 25)
• Modify electrical power feed to W system (WCD 26)
• Add grating supports and sampling cutout at Secondary Splitter Box (WCD 29)
• Final costs for construction of Five Mile creek bridge and outfall pipe (WCD 34a)
• Realign 36"-SE pipe due to unforeseen location of Secondary Clarifier 4 effluent pipe (WCD 36)
• Post Aeration Building entry steps and paving (WCD 38)
• Removal of existing footing for uniform surface to construct Aeration Basin 1 & 2 extension (WCD 42)
• Removal of unforeseen grout under filter media (WCD 45a)
• Revise layout and preparation of paving around Primary Clarifiers 3 & 4 (WCD 47)
• Add lighting for flag pole (RFP 022).
• Credit for the elimination of asphaltic coating at the Primary Clarifier mechanism (RFP 23)
• Removal and replacement of owner supplied Mag flow meter (RFP 26)
• Revise pipe support hangers in Aeration Basins 1 & 2 (RFP 28)
• Revise scum vault and pump slide rails at Secondary Clarifier 5 (RFP 29)
Time Extension to include additional scope of work requested by the City, as follows:
1. Five Mile Creek Bridge Crossing and Flow Meter
2. Tertiary Filter Installation
3. 42-inch Diameter Raw Sewage pipe expansion.
4. Chemical Feed Facilities for Chemically Enhance Primary Treatment and Anaerobic Digesters.
Attachments: JC Constructors Change Proposal Request - (WCD 25) -September 21, 2007 for $4,789.44
JC Constructors Change Proposal Request - (WCD 26) -June 19, 2007 for $7,192.29
JC Constructors Change Proposal Request - (WCD 29) -June 20, 2007 for $836.96
JC Constructors Change Proposal Request - (WCD 34a) -August 14, 2007 for $18,417.08
JC Constructors Change Proposal Request - (WCD 36) -May 29, 2007 for $2,174.37
JC Constructors Change Proposal Request - (WCD 38) -May 8, 2007 for $14,160.64
JC Constructors Change Proposal Request - (WCD 42) -August 16, 2007 for $2,077.82
JC Constructors Change Proposal Request - (WCD 45a) -October 1, 2007 for $12,264.33
JC Constructors Change Proposal Request - (WCD 47) -September 21, 2007 for $5,157.41
JC Constructors Change Proposal Request - (RFP 22) -June 16, 2007 for $3,052.94
JC Constructors Change Proposal Request - (RFP 23) -September 21, 2007 for (-$2,241.29).
JC Constructors Change Proposal Request - (RFP 26) -September 21, 2007 for 2,867.20
JC Constructors Change Proposal Request - (RFP 28) -September 21, 2007 for $4,419.41
JC Constructors Change Proposal Request - (RFP 29) -July 31, 2007 for $11,068.15
Page 2 of 2
CHANGE IN CONTRACT PRICE: CHANGE IN CONTRACT TIMES:
Original Contract Price Original Contract Times
Substantial Completion: 670 Davs - September I, 2007
p
$ 0,367,544.00 Ready for Final Payment; 730 Davs -November 1, 2007
days or dates
Net Changes from previous Change Orders No. 1 to No. 4 Net Changes from previous Change Orders No. 0 to No. 4
546
48
$ 560 Zero (o)
.
, Days
Contract Price prior to this Change Order Contract Times prior to this Change order
Substantial Completion: 670 Davs - September 1, 2007
$ 8,928,046.48 Ready for Final Payment: 730 Days -November 1.2007
days or dates
Net Increase (decrease of this Change Order) Net Increase (decrease of this Change Order)
$ $6
236
75 One Hundred Twenty (1201
,
. days
Contract Price with all approved Change Orders Contract Times with all approved Change Orders
Substantial Completion: 670 Days - September 1, 2007
$ 9,014,283.23 Ready for final payment: 850 Davs - February 28, 2008
days or dates
RECOMMENDED BY ENGINEER:
By
Date:
William J. Benko, P.E.
APPROVED BY OWNER:
ACCEPTED BY CONTRACTOR:
By:
Contractor (Authorized Signature)
Date:
Clint Dolsby, P.E., Public Works Tammy de Weerd, Mayor
Date: Date:
Attest: _
William G
Date:
Berg, Jr., City Clerk