HomeMy WebLinkAbout07.a. Award contract to Aztec Consultants, Inc. for Treatment Plant Piping Renovations, Phase 6, DP 7288Central Contra Costa Sanitary District
BOARD OF DIRECTORS '
POSITION PAPER
Board Meeting Date: June 16, 2011
Subject: AWARD A CONSTRUCTION CONTRACT AND AUTHORIZE THE
GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO
SUBMITTAL REQUIREMENTS WITH AZTEC CONSULTANTS, INC. FOR THE
CONSTRUCTION OF THE TREATMENT PLANT PIPING RENOVATIONS,
PHASE 6, DISTRICT PROJECT NO. 7288
Submitted By: Initiating Dept. /Div.:
Gary Rathunde, Associate Engineer Engineering /Capital Projects
REVIEWED AND RECOMMENDED FOR BOARD ACTION:
6i=_ KTT ?a- i A a4k&_i' ik
G. Rathunde B. Than A. Antkowiak A. Farrell mes M. K y,
eneral Manager
ISSUE: On June 1, 2011, six sealed bids were received and opened for the
construction of the Treatment Plant Piping Renovations, Phase 6, District Project
No. 7288. The Board of Directors must award the contract or reject bids within 50 days
of the bid opening. Authorize the General Manager to execute the contract documents
subject to SUBMITTAL requirements.
RECOMMENDATION: Find that the project is exempt from the California
Environmental Quality Act (CEQA); award a construction contract; and authorize the
General Manager to execute the Contract Documents subject to favorable review of
insurance certificates, bond submittals, appropriate Contractor license, and any other
required submittals (SUBMITTALS).
FINANCIAL IMPACTS: Approximately $2,253,000 including design, bid price,
contingency, and construction management.
ALTERNATIVES /CONSIDERATIONS: Reject all bids, which is not recommended.
BACKGROUND: During the construction of the secondary treatment facilities in the
early 1970s, numerous piping systems were installed throughout the treatment plant.
These pipes carry the processed wastewater, sludge, steam, air, and other utility
services between the various sections of the plant. These pipes have been in place for
over thirty -five years and are showing signs of deterioration.
Phase 6 of the Treatment Plant Piping Renovations Project will focus on replacing
sections of the scrubber water piping at the seal tanks on the wet scrubbers and in the
MXPESUMPosition Papers \Rathunde \7288_Award.doc Page 1 of 6
POSITION PAPER
Board Meeting Date: June 16, 2011
Subject: AWARD A CONSTRUCTION CONTRACT AND AUTHORIZE THE
GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO
SUBMITTAL REQUIREMENTS WITH AZTEC CONSULTANTS, INC. FOR THE
CONSTRUCTION OF THE TREATMENT PLANT PIPING RENOVATIONS,
PHASE 6, DISTRICT PROJECT NO. 7288
SCB plenum, replacing a section of the centrate pipe at the foam suppression tank, and
replacing air supply pipelines and aeration air diffuser assemblies in pre aeration tanks,
primary tank distribution channels, and primary tank effluent channels. In addition, the
construction work will include installing baffles within one of the primary sedimentation
tanks, installing day tanks at the standby power building generators, replacing a flow
meter on an aeration blower, and removing pipe insulation, which contains asbestos, at
various locations around the treatment plant. Attachment 1 shows the locations of all
the project work.
District staff prepared the plans and specifications for the project with the exception of
the structural modifications required at the Primary Sedimentation Tanks (Area 3) and
at Structure 1 (Area 6), which were prepared by Complete Project Solutions, Inc. (CPS).
The Engineer's estimate for construction of the Treatment Plant Piping Renovations,
Phase 6, is $1,540,000. This project was advertised on May 6, 2011. Six sealed bids,
ranging from $1,578,000 to $1,820,000 were received and publicly opened on
June 1, 2011. The Engineering Department conducted a technical and commercial
review of the bids and determined that Aztec Consultants, Inc. is the lowest responsive
bidder with a bid amount of $1,578,000. A summary of bids received is shown in
Attachment 2.
District staff will administer the construction contract and will provide contract
administration, inspection, survey, office engineering, and submittal review. The funds
required to complete this project, as shown in Attachment 3, are $1,593,000. The total
cost of the Treatment Plant Piping Renovations, Phase 6, is anticipated to be
$2,253,000.
This project is included in the fiscal year (FY) 2010 -11 Capital Improvement Budget
(CIB) on pages 74 and 75. Staff has conducted a cash -flow analysis of the Treatment
Plant Program budget and concluded that adequate funds are available for this project.
Staff has concluded that this project is exempt from the California Environmental .
Quality Act (CEQA) under District CEQA Guidelines Section 15301 since it involves
minor alterations to existing public facilities. Approval of this project will establish the
Board of Directors' independent finding that this project is exempt from CEQA.
NIPESUP \Position Papers \Rathunde \7288_Award.doc Page 2 of 6
POSITION PAPER
Board Meeting Date: June 16, 2011
Subject: AWARD A CONSTRUCTION CONTRACT AND AUTHORIZE THE
GENERAL MANAGER TO EXECUTE CONTRACT DOCUMENTS SUBJECT TO
SUBMITTAL REQUIREMENTS WITH AZTEC CONSULTANTS, INC. FOR THE
CONSTRUCTION OF THE TREATMENT PLANT PIPING RENOVATIONS,
PHASE 6, DISTRICT PROJECT NO. 7288
RECOMMENDED BOARD ACTION: Staff recommends the following:
Find that the project is exempt from CEQA,
2. Award a construction contract in the amount of $1,578,000 for the construction of
the Treatment Plant Piping Renovations, Phase 6, District Project No. 7288 to
Aztec Consultants, Inc., the lowest responsive bidder, and
3. Authorize the General Manager to execute the Contract Documents subject to
SUBMITTAL requirements.
NAPESUP \Position Papers \Rathunde \7288_Award.doc Page 3 of 6
FEEr
PROJECT AREA 5
Pump & Blower
Building
rr
STAGING AREA
PROJECT AREA 2
— Solids Conditioning
Building
NAPESUPTosition Papers\Rathunde\728$ Award.doc Page 4 of 6
ATTACHMENT 2
TREATMENT PLANT PIPING RENOVATIONS, PHASE 6
DISTRICT PROJECT 7288
SUMMARY OF BIDS
PROJECT NO.: 7288 NO. OF ADDENDA: 1 DATE/TIME: JUNE 1, 2011/2:00 PM
PROJECT NAME: TREATMENT PLANT PIPING RENOVATIONS. PHASE 6
PROJECT MANAGER: GARY RATHUNDE
PROJECT LOCATION: 5019 IMHOFF PLACE MARTINEZ CALIFORNIA
ENGINEER EST.: $1,540,000
NO.
BIDDER
BID PRICE
1
Aztec Consultants
1,578,000
San Ramon, CA 94583
2
JMB Construction, Inc.
1 651 200
South San Francisco, CA 94080
'
3
Manito Construction, Inc.
1,660,600
Pleasanton, CA 94566
4
Stanek Constructors
1 675 000
Escondido, CA 92029
'
5
Monterey Mechanical Company
1 698 000
Oakland, CA 94621
'
6
Pacific Mechanical Corporation
1,820,000
Concord, CA 94524
BIDS OPENED BY: /s/ Elaine Boehme
DATE June 1, 2011
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ATTACHMENT 3
TREATMENT PLANT PIPING RENOVATIONS, PHASE 6,
DISTRICT PROJECT 7288
POST -BID /PRE- CONSTRUCTION ESTIMATE
No.
Item Description
Amounts
% Construction Cost
1
CONSTRUCTION
a. Construction Contract
$1,578,000
b. Contingency at 15%
$ 237,000
SUBTOTAL - CONSTRUCTION COST
$1,815,000
100%
2
CONSTRUCTION MANAGEMENT
a. District Forces
- Construction Management & Engineering
$120,000
- Operations Department Support
$30,000
b. Consultant
- Complete Project Solutions (CPS)
$10,000
c. Outside Services
- Construction Inspection
$120,000
SUBTOTAL - CONSTRUCTION MANAGEMENT
$280,000
15%
3
PREBID EXPENDITURES
a. District Forces /CPS
$158,000
SUBTOTAL - PREBID EXPENDITURES
-
$158,000
9%
4
TOTAL PROJECT COST
$2,253,000
5
FUNDS AUTHORIZED TO DATE
$660,000
6
ADDITIONAL ALLOCATION NEEDED TO COMPLETE
PROJECT Line 4 - Line 5
$1,593,000
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