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4646 Dakota Street S.E.
Prior Lake, MN 55372-1714
CITY COUNCIL AGENDA REPORT
FEBRUARY 19,2008
5H
JENNIFER WITTKOPF, PUBLIC WORKS COORDINATOR
CONSIDER APPROVAL OF A RESOLUTION AMENDING THE CONTRACT
FOR MATERIALS TESTING SERVICES FOR THE WATER TREATMENT
FACILITY
Introduction
The purpose of this agenda item is for the City Council to approve additional
materials testing services for the Water Treatment Facility.
Historv
The City of Prior Lake Capital Improvements Program (CIP) has planned for a
Water Treatment Facility (WTF) since the mid 1990s. The project was
incorporated into the 2006 CIP. In June 2006, the City Council held an
informational meeting to discuss the status of the WTF and directed the Water
Treatment Facility Committee (WTFC) to proceed with the consultant selection
process. In August 2006, the City Council entered into a contract with Bolton
& Menk, Inc. (BMI) and initiated the design report for the WTF.
As part of the design and construction process, a geotechnical I testing
engineer is needed. Soil borings were needed to provide necessary design
information. Material testing is part of the construction quality control process.
These services are provided by specialty testing firms. In November 2006, the
City Council entered into a contract with Braun Intertec Corporation for
geotechnical and testing services associated with the WTF.
In December 2006, the City Council accepted the design report and authorized
preparation of plans and specifications for a 7.5 MGD WTF. In June 2007, the
plans and specifications were approved by the City Council and in August
2007, the construction contract was awarded to Rice Lake Construction Group.
Construction on the facility began later that month.
Current Circumstances
The original contract with Braun was based on preliminary estimated quantities
of concrete and soil testing samples, before the final design was completed for
the project. Now that the design is complete and the project is under
construction, it has been determined that more concrete samples than
originally estimated will need to be collected and tested. It is estimated at this
time that no additional soil testing will need to occur.
At the beginning of January 2008, roughly 2,600 cubic yards of concrete had
been placed out of an estimated total 7,000 cubic yards. Based on this, the
project engineer from BMI has provided a revised quantity of concrete samples
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and Braun has provided the associated cost estimate. The following shows
the original and revised contract amounts:
Geotechnical Evaluation (complete)
Original Soil Testing Amount
Original Concrete Testing Amount
Original Contract Amount
$ 4,100.00
$ 4,215.00
$ 13,924.00
$ 22,239.00
$ 22,430.50
$ 44,669.50
Additional Concrete Testing Amount
Revised Contract Amount
ISSUES:
During construction, material testing, including concrete strength and soil
compaction density, are required for the quality control process. The quantity
and frequency of samples required is set by the International Building Code.
The results of these tests are reviewed by the contractor, the design engineer
and the City's Building Official. More concrete samples are required than
originally estimated from preliminary design quantities, thus increasing the
overall costs.
FINANCIAL
IMPACT:
The project funding has been arranged in the Water Storage fund and includes
the professional services contemplated herein, without increasing total project
costs. Sufficient funding is available in the Water Storage fund to complete
the project.
ALTERNATIVES:
The alternatives are as follows:
1. Approve a resolution amending the contract for materials testing
services for with the Water Treatment Facility by Braun Intertec.
2. Table this agenda item for a specific reason.
3. Deny this agenda item for a specific reason and provide staff with
direction.
RECOMMENDED
MOTION:
Alternative #1.
Motion By:
Second By:
WHEREAS, On November 20, 2006, the City Council authorized the Mayor and City Manager to
execute the City's Standardized Professional Services Agreement with Braun Intertec
for geotechnical! testing services associated with the Water Treatment Facility in the
amount of $22,239; and
WHEREAS, Actual testing quantities required by code are greater than originally estimated from
preliminary design plans; and
WHEREAS, The project engineer from BMI has provided a revised quantity of concrete samples
and Braun Intertec has provided the associated cost estimate as follows:
Geotechnical Evaluation (complete)
Original Soil Testing Amount
Original Concrete Testing Amount
Original Contract Amount
$ 4,100.00
$ 4,215.00
$ 13,924.00
$ 22,239.00
$ 22,430.50
$ 44,669.50
Additional Concrete Testing Amount
Revised Contract Amount
and
WHEREAS, Construction testing services are a necessary part of the quality control process for
the facility;
NOW THEREFORE, BE IT HEREBY RESOLVED BY THE CITY COUNCIL OF PRIOR LAKE,
MINNESOTA as follows:
1. The recitals set forth above are incorporated herein.
2. The Mayor and City Manager are authorized to amend the contract with Braun Intertec for
construction testing services associated with the Water Treatment Facility project to a total
contract amount not to exceed $44,669.50. Funding for this project will come from the Water
Storage/WTF Construction Account (505-49100-505).
PASSED AND ADOPTED THIS 19TH DAY OF FEBRUARY 2008.
Hauaen Hauaen
Erickson Erickson
Hedbera Hedber~
leMair leMair
Millar Millar
YES
NO
Frank Boyles, City Manager
R:\Council\2008 Agenda Reports\02 19 08\WTF revise geotech resolution.doc
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