HomeMy WebLinkAboutC2005-045 - 1/18/2005 - Approved CHANGE ORDER
Department of Engineering Services
City of Corpus Christi, Texas
CHANGE ORDER NO: 2 FUNDING SOURCE: 550910-42404)00~-150246
Operating Department: Wastewater Department
Name of Project: Resaca Lift Station & 48" Wa~tewater Gravity Line (7288)
Contractor: Holloman Corporation
CONTRACT TIME: 270 C.D.
DATE: January 7, 2005
Add the following hid Rems to the
67. Hydrocnrbon Investigation-1 LS.
68. Weflpoint Repairs-1 L.S.
69. Broadway WWTP Wall
Extenslons-I L.S. (~ $43,712.65
TOTAL ADD
ADD
$58,572.04
$36,005.72
$138,290.41
D~DUCT
Why was this change necessary? (If left off the plans and specifications, explain why)
SEE ATTACHED
How can similar changes be avoided in the future?
SEE A'I~FACHED
A. CONTRACT PRICE ............................................................... $ 4.621.795.00
B. TOTAL CHANGE ORDER (inc. current) ........................... $ 160.838.63
C. NEW CONTRACT PRICE ................................................... $ 4.782.6't3.63
D. THIS CHANGE ORDER ......................................................S 138.290.41
E. PERCENT TOTAL CHANGE (B/A) ................................... 3.48%
F. PREVIOUS ADDN'L TIME AUTHORIZED ..................... -0-
G. ADDN'L CONTRTACT TIME THIS CHANGE ORDER. -0-
H. TOTAL ADDITIONAL TIME .............................................. -0-
CITY OF CORPUS CHRISTI, TEXAS
BY: ~ ~~gineer
APPROVED~~}-/~- ~:>-.~ Operating Department
...................
~ONTRACTOR
Title:
2005-045 .... '
01/18/05 ---- ~
M2005-02!
67. Hydrocarbon Investigation
During the initial setting of the wellpoint (dewatering) system for the installation
of the deep 48" gravity sanitary sewer, hydrocarbons (petroleum product) were
encountered. The mount for this item covers the costs for the additional work
required to determine the extent (area covered), concentrations (how much
hydrocarbons) and necessary treatment/disposal measures that would bo required.
The results of all the additional work determined that the problem was isolated to a
relatively small area and the concentration level was low. Therefore, no special
treatment/disposal measures will be required.
This was an unavoidable situation that can occur at any time on any project. It is
more common in the older areas of the City that had commercial/industrial uses prior
to many of the current state and local regulations for the handling/storage of
hydrocarbon-containing materials.
68. Welllmint Reuairs
After the wellpoint system was set, an old existing 10-inch waterline broke
outside the limits of the contractor's construction area. This occurred during the
period of time when the City was experiencing a multitude of waterline breaks. The
result of this break was that the contractor's construction area was partially flooded.
This flooding rendered the wellpoint system inoperative. In order to make the system
operative again, it will have to be removed and replaced.
This was an unavoidable situation.
69. Broadway WWTP Wall Extensions
As you are well aware, the Broadway Wastewater Treatment Plant is located In a
flood-prone area_ When sigrfificant flood events occur, some plant facilities are
submerged. This, in turn, creates situations that put the City in violation of their
Texas Commission for Environment Quality (TCEQ) permit. This item will raise the
height of the walls on Intermediate Clarifiers No. 1 and No. 2.
This is an unavoidable cost that will decrease the risks ofa TCEQ Violation.
J:~PROJECT DATA CORPUSL~04032-01(C) City of CC-Resaca Lil~ SIm~m\0542ONTRACTS & CIJakNGE ORDERS\I 6 05 Hydrocarbon
Investigation.doc