HomeMy WebLinkAboutItem 12 - Water Treatment Plant and Hilton Lift Station ImprovementsMEMO TO:
FROM:
MEETING DATE:
SUBJECT:
RECOMMENDATION:
ITEM 1
HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL
BRUNO RUMBELOW, ACTING CITY MANAGER �>�
NOVEMBER 15, 2005
WATER TREATMENT PLANT AND HILTON LIFT STATION
IMPROVEMENTS - CHANGE ORDER # 5
City Council to consider ratifying Change Orders # 2, 3 & 4 previously approved by Staff
in the amounts of $2,002.00, $9,922.00, and $7,956.00 respectively and approving
Change Order # 5 in the amount of $9,361.00 for scope changes requested by City
Staff, authorize the Staff to execute said change order and take any necessary action.
FUNDING SOURCE:
Contingerxy
TOTAL
MEN,= • •�
$ 352,450.00
10.2%
$ 2,469,886.00 $ 29,241.00 71.2%
$ - 0.0%
$ 645,764.00 18.6%
$ 3,468,100.00 $ 29,241.00 100.0%
November 10, 2005 (10:15AM)
WW I •:• Fees
20&48940-534-6-01111:
'.
117,257.00
3.4%
•. Lkility Bonds
11 ':vil 1111 '
$
4,524.00
0.1%
•• Utility Bonds
11 x:93 1/111•
'.
'•
97 LAility Bonds
11 ':8930 11111
$
630 .00
0.00/0
01 Lifility Bonds
11 :v 1 111 / Ii
$
160,000-00
4.6%
•. LAility : • •.
114 :93 1111:
'.
194,750.DO
5.6%
•,! Ulb I ity Bonds
II4893 1111 • A
$
285,079.00
8.2%
01 Utility : • •s
11 ' :vi l III / Id
'.1,395,884.00
'
40.2%
01 Lkility : • •.
11 ' :v' i 1 1111 1
$ 1,234,501.00 1 'r
29,241.00 35.6%
TOTAL
'.3,468,100-28
'r
• 11 100.0%
Contingerxy
TOTAL
MEN,= • •�
$ 352,450.00
10.2%
$ 2,469,886.00 $ 29,241.00 71.2%
$ - 0.0%
$ 645,764.00 18.6%
$ 3,468,100.00 $ 29,241.00 100.0%
November 10, 2005 (10:15AM)
: A 0 •
The Water Treatment Plant and Hilton Lift Station required enlarged facilities to keep up
with demand created by growth in the Grapevine Utility System. The Water Treatment
Plant Expansion and Hilton Lift Station are nearing completion. Items included in
Change Order #5 will address needed plant repairs that are advantageous to pursue
during the current construction activities.
Staff previously approved Change Orders #2, #3 and #4 and now seeks ratification of
these change orders along with approval of Change Order #5. Change Order #2 in the
amount of $2,002.00, replaced a leaking 10" butterfly valve. Change Order #3 in the
amount of $9,922.00, included modifications to duct work, changes to vertical turbine
pump embedment and replacement of an existing 8" valve. Change Order #4 in the
amount of $7,956.00, included repairs to a ladder and air vent in Ground Storage Tank
#1.
Change Order #5 authorizes the repair of corroded rafters in the steel tank roofing
system of Ground Storage Tank #1. Repairs will consist of installing a new circular
support ring for the center of the tank and removing the existing corroded section of the
rafters. The new steel construction will be painted and the tank disinfected in
accordance with the regulatory requirements and then put back into service. The total
cost for the repairs is $9,361.
Staff recommends approval.
M
November 10, 2005 (10:16AM)
rlmll�
CONTRACTOR'S MODIFICATION REQUEST
FF EESE-NICHOLS (4.421013)
PROJECT: Grapevine WTP & Hilton Lift Station Improvements PROJECT NUMBER:
OWNER: City of Grapevine, Texas GPV04220
CONTRACTOR: Cooper General Contractors
ENGINEER: Freese & Nichols, Inc.
DESCRIPTION: GST #1 Steel Repairs NO. CMR- 013
NOTIFICATION BY CONTRACTOR
The Contractor proposes to make the additions, modifications, or deletions to the Work described in the
Contract Documents, as shown in Attachment "A" and requests that you take the following action:
El Notify us that you concur that this change does not require a change in Contract time or amount
and issue a Field Order.
Issue a Change Order for performing the described change. Change in Contract amount is
indicated in the attached detailed cost breakdown of labor, materials, equipment and all other
costs associated With this change. Impacts on Contract Time are shown in the attached revised
schedule.
D Authorize the Contractor to proceed with the described change. Payment will be requested at the
unit price bid,
11 Authorize the Contractor to proceed with the change under the time and materials provisions of
the Contract.
By: Date:
CONSTRUCTION MANAGER'S RESPONSE
We respond to your request as follows:
El We concur that this is a no cost or time change. See attached/forthcoming Field Order No.
/ comments.
Your proposal is recommended to the Owner. See attached/forthcoming proposed Change
Order.
11 Proceed with the change at the unit price bid.
D Proceed with the change under the time and materials provisions of the Contract.
11 Additional information is required to evaluate this request. Provide information as described
in the attached comments and resubmit.
El Contvctor's Modific tion st is not accepted.
By: Date: 1011 1 05-
Z:\Projects\Municipal\Cooper General Contractors (Current Jobs)\Grapevine WTP (Job #167.05)\Change Orders\CMR-013 Additional Tank #1 Repairs to Steel.doc
10/31/2005 16:30 9722457970 COOPER GEN CON PAGE 05/05
F COOPIRi
camEP1AL GONTRAGTOAO
1111 P -
October 20, 2005
Freese and Nichols, Inc.
4055 b)ternatienal Plaza, Suite 200
Fort Worth, TX. 76109
Attention: Richard Provolt
Reference: City of Grapevine WTP and Hilton Lift Station Project (CMR -013)
Gentlemen:
Cooper General Contractors (Cooper) offers the following proposal for the repair of GST# 1 as requested by the
Owner:
I . Tank steel rework as per Dale's Welding Service proposal
= $3,950.00
— $ 800.00
2. Painting of steel that is reworked
3_ Cooper's Labor to remove baffles that are in the way of steel repair,
clean tank, reinstall baffles, and redisinfeet GST #1
$2,160.00
4 men x 32 hours x $12.50/hour x 1.35 labor Burden
= $ 702.00
4. Superintendent 16 hours x $32.50 x 1.35 Labor Burden
0
5. of ' 1 k x (week
$7,942.00
SUBTOTAL
_ SIMIAN
Ove ad 15%
$9,133.30
SUBTOTAL
pert ec en aintmnan d °�
_
— 8 33
_ $9,361.63
TOTAL
= $9,361.00
TRUNCATE TOTAL
This additional work requires a contrAct extension of 5 days or more depending on when the work is authorizcd-
ploaso respond as quickly as possible.
Sincerely,
*40
Michael G. Daigre
Project Manager
972-245-7980 1225 E. Crosby - Suite Ai - Carrollton, Texas 75006 972-245-79701 Fax