HomeMy WebLinkAboutChange Order No. 2 with McLaren Well Drilling, LLC for Well 28 Production Well Construction~~i~E IDIAN~-
Public IDAHO
Works Department
TO: Mayor Tammy de Weerd
Members of the City Council
FROM: Clint Worthington, P.E.
Staff Engineer
DATE: 9121/2009
Mayor Tammy de Weerd
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Brad Hoagl~
Charles Rour~ree
David zaremba
SUBJECT: WELL 2$-PRODUCTION WELL CONSTRUCTION-CHANGE ORDER #2
(OCTOBER 20, 2009 CONSENT AGENDA)
I, RECOMMENDED ACTION
A. Move to:
1. Approve change order #2 with McLaren Well Drilling, LLC, for Well 28
Production Well Construction in an amount of $4,375 and;
2. Authorize the Mayor to sign the change order
II. DEPARTMENT CONTACT PERSONS
Clint Worthington, Staff Engineer (Project Manager) 489-0349
Kyle Radek, Asst. City Engineer 489-0343
Warren Stewart, FW Engineering Manager 489-0350
Tom Barry, Director of Public Works 489-0372
Page 1 of 3
III. DESCRIPTION
A. Back ound
Construction of Well #28 was budgeted for fiscal year 2009 in accordance with the City's Water
Master Plan Update of 2006 prepared by CH2MHILL. A contract with Treasure Valley Drilling
Inc. was approved on 3/9/2009 for the drilling of the well in the amount of $244,026. To date,
there has been one change order associated with the project in the amount of $9,348.60 for
additional depth of drilling required. This change order will be the second and is in the amount
of $4,375, bringing the total contract amount to $257,749.60, for a net increase of 5%.
B. Chance Order
[nitial attempts to completely develop the well and remove sand infill using the mud rotary
drilling rig by Treasure Valley Drilling were unsuccessful. A rubber packer seal was also lost in
the well with these attempts. Additional attempts would have been very costly with a small
chance of success.
In order to remove the sand infill, remove the rubber seal and finish well development, a cable
tool drilling rig was mobilized on site and utilized by McLaren Well Drilling. McLaren
successfully removed the sand, rubber seal and Hilly developed the well. Attached is the
associated change order for this work.
IV. IMPACT
A. Strate is Impact:
This project meets our mission requirements to indentify and prioritize work to anticipate,
plan and provide public services and facilities that support the needs of our growing
community and ensure modern reliable facilities while maintaining financial stewardship.
B. Servicc/Delivery_Impact:
Currently, there are no water supply wells in the upper pressure zone (zone S). The addition of a
new well to provide water supply to this zone was indentified as a priority in our 2006 Water
Master Plan update prepared by CH2MHILL. When complete, well 28 will supply 3.6 mgd
(million gallons per day) to this pressure zone meeting demands for water distribution and fire
flow. This change order ensured that well 28 was constructed properly, and allows for use at its
full potential.
C. FiscalImuact:
Well Drilling Proiect Costs
Original Contract Price $244,026
Change Order No. 1 +$9,348.b0
Change Order No. 2 + 4 375
Net Increase +$13,723.60
Page 2 of 3
Final Project Costs $257,749.60
Project Funding
Enterprise Fund for We1128 $725,889.16
V. TIME CONSTRAINTS
Council's approval will allow completion of the construction with well 28 on line by January of
2010.
VI. LIST OF ATTACHMENTS
A. Contract Change Order Form
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Approved for Council Agenda:
Tom Barry, Director of Public Wdrl~
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Date
Puge 3 of 3
K~L~_F~ 11117_1: C~7
MERIDIAN, ID 83642
CONTRACT CHANGE ORDER
Change Order No.: 2
Project Number. 0733c
Date: 10/1/2009
Effectlve Date:
CONTRACTOR: McLaren Well Drilling, LLC
PROJECT: Well 28 Production Well Construction
The Contractor is hereby directed to make the following changes from the Contract Documents and Plans.
Desclption:
1) Removal of sand infill and a lost rubber packer with a cable tool drilling rig.
2) Develop the well and set the packer-reducer seal.
3)
4)
Reason for Change Order:
Treasure Valley Drilling lost a rubber packer seal and created some sand infill in the well in their attempts to develop the well with the mud
rotary drill rig. McLaren was brought in with a cable tool rig to remove the rubber and sand infill and complete the well development
process.
Attachments:
CHANGE IN CONTRACT PRICE: CHANGE IN CONTRACT TIMES:
Original Contract Price: $244,026.00 Original Contract Completion Date:
Original Contract Completion Days:
Net changes form previous C.O: s.: Net Days change form previous C.O.'s:
No. 0 to 0 No. 0 to 0
$9,348.60
Contract Price Prior to this C.O.: Contract Completion Date before this C.O.:
$253,374.60
Net Increase (decrease) of this C.O.: Net Days Increase (decrease) of this C.O.:
$4,375.00
Contract Price with all Approved C.O: s: Contract Completion Date with all Approved C.O.'s:
$257,749.60
RECOMMENDED: (CONSTRUCTION MANAGER) ACCEPTED (CONTRACTOR)
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APPROVED: (CITY PuRC SING AGEN COUNCIL APPROVAL
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By: Keith Watts
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APPROVED• CITY) ~ ~ EST:
By: Mayor Tam y e Weerd - ~~~~ B
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Jaycee Holman
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