HomeMy WebLinkAbout4 AquaHydrogeologic Change order Agenda Item #
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Memorandum
To: Board of Directors
From: Ed Taylor
Date: January 9, 2004
Date of Board Meeting: January 14, 2004
Subject: AquaHydrogeologic Consulting Change Order
1. WHY THIS MATTER IS BEFORE THE BOARD
Additional work was required by the consultant to supervise the Prosser Village
Production well. Change orders require Board approval.
2. HISTORY
The Board approved the contract with AquaHydrogeologic consulting at its August 20th,
2003 meeting for a total of$78,870.00 for supervision and documentation during the
Prosser Village Production Well Drilling Program. The original scope of work and cost
estimate projected that the drilling, construction, and air-lift development of the
production well would take approximately 15 days and the cost associated with this
projection would be $36,940.
3. NEW INFORMATION
The Contractor(Zim Industries, Inc.) hired to drill the Prosser Village Production Well
took longer then anticipated. AquaHydrogeologic incurred additional costs for the
supervision of that drilling.
4. RECOMMENDATION
Staff recommends that the Board approve the change order in the amount of$41,000,
bringing the new total project cost to $119,870.
November 19, 2003
Mr. Ed Taylor
Water Utility Manager
Truckee Donner Public Utility District
11570 Donner Pass Road
Truckee, CA 96160
RE: Revised Cost Estimate for Prosser Village production well drilling supervision and
data collection
Dear Ed:
I am providing you with an update of the cost estimate for the Prosser Village production
well supervision and data collection due to the numerous delays and problems that have
been encountered during the drilling program to date. In the original scope of work and
cost estimate it was projected that the drilling, construction, and air-lift development of
the production well would take approximately 15 days. The cost associated with this
projection was $36,940. As of today we have been in the field for 19 days and have
reached a cost in excess of$41,000. In making a projection on how much longer the
field work will take place is difficult, because of ZIM's performance to date. However, if
the construction and development can be wrapped up in 15 days, the additional cost to the
contract would be approximately$37,000 plus the approximately $4,000 of overage costs
that have already been incurred. This would make the total project cost of$119,870
instead of the original estimate of$78,870.
If you have any questions, please contact me at(775) 250-9700.
Sincerely,
O 1
David Carlson
VO. Bo% 18793 * Reno Nevada 89511 a (775)250 9700 o Faa (775)841-0946 Day idE('arlson(a msn.com