HomeMy WebLinkAboutClearwater Construction Change Orders 10 & 11 CP7-SE-2A-13-02 Primary Clarifier Upgradey5v• U. (0(05-56• G5b?.
CITY OF PASCO
PUBLIC WORKS DEPARTMENT
CONTRACT CHANGE ORDER NO. 10
Project No: CP7-SE-2A-13-02 Project Title: Primary Clarifier Upgrade
CHANGE
ORDER #10
Contractor: Clearwater Construction, 5711 W. Garden Springs Road, Spokane, WA 99224
Description of Change: Refer to Backup Sheet
Detail as Appropriate: Refer to Backup Sheet
Contract Bid Amount:
Sales Tax @ 8.6%:
Total:
$ 4,267,300.00
$ 366,987.80
$ 4,634,287.80
PREVIOUS CHANGE ORDER
CURRENT CHANGE ORDER
Subtotal $
145,584.65
Subtotal
$
4,420.28
Sales tax @ 8.6% $
12,520.28
Sales tax @
8.6% $
380.14
Total $
158,104.93
Total
$
4,800.42
Total Change Orders To Date $ 162,905.35
New Contract Amount $ 4,797,193.15
IS CONTRACT TIME AFFECTED BY THIS CHANGE ORDER YES NO
Contract Time Prior to this Change Order ................................. 355/405
Modification to Contract time by this Change Order .................... 15
Revised Total Contract Time .................................................... 370/420
It is mutually agreed by both parties that this Change Order fully describes the change(s) that is (are) being made
and that the compensation for this Change Order is full and complete and is the only compensation due or owing for
this Change Order. Further, it is mutually agreed that this document will supplement the present Contract
Documents and that the provisions of the previously executed Contract Documents shall apply to this Change Order
A REED TO AND ACCEPTED:
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CONTRA OR Date
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City of Pasco — Public Works Department
Change Order No. 10 Backup Sheet
Description of Need & Cost Evaluation
Prepared by: Don Tulloch, P.E. —Gray & Osborne, Inc.
Date: October 10. 2016
COP 039— Install Quarry Spalls on Slope instead of Landscape Rock:
Background Information: The slope between the vehicle storage building is almost a 2:1 slope,
and the specified landscape rock may be too small to stay in place. It is anticipated that quarry
spalls will better stay in place.
Cost Evaluation: The cost to do this work is $5,250.00. The Contractor will use a subcontractor
who submitted the lowest quote to do the work, and this price appears to be fair. Previously, a
change order proposal had been processed to add pilasters to cover an uneven existing wall
near the headworks. Now that the site has been backfilled and the driveway has been poured
to grade, the uneven walls are less noticeable and the pilasters will not be installed. The
elimination of the pilasters reduces the price by $3,048.35.
The final additive price is .....................
Increase contract time (calendar days)
Page 1 of 2
..... $2,201.65
...............................................5 days
City of Pasco — Public Works Department
Change Order No. 10 Backup Sheet
Description of Need & Cost Evaluation
Prepared by: Don Tulloch, P.E. — Gray & Osborne, Inc.
Date: October 10, 2016
COP 043 — Air Filter for Sludae Pump Room:
Background Information: The plans called for a filter in the exhaust ducts of the sludge pumping
room but not in the supply ducts of the sludge pumping room. Because the sludge pumping
room is near a gravel pit, it is susceptible to large amounts of dust and debris. The addition of a
filter to the supply ducting will help to prevent accumulation of dust in the room and help to
protect the various control panels and equipment in the room.
Cost Evaluation: The cost to do this work is $2,218.63. The Contractor will use its HVAC
subcontractor to install a filter upstream of the supply fan. The costs appear to be reasonable.
The final additive price is ...........................
Increase contract time (calendar days) .....
Page 2 of 2
$2,218.63
...10 days
CITY OF PASCO CHANGE
PUBLIC WORKS DEPARTMENT ORDER #11
CONTRACT CHANGE ORDER NO. 11
Project No: CP7-SE-2A-13-02 Project Title: Primary Clarifier Upgrade
Contractor: Clearwater Construction, 5711 W. Garden Springs Road, Spokane, WA 99224
Description of Change: Refer to Backup Sheet
Detail as Appropriate: Refer to Backup Sheet
Contract Bid Amount:
Sales Tax @ 8.6%:
Total:
$ 4,267,300.00
$ 366,987.80
$ 4,634,287.80
PREVIOUS CHANGE ORDER
CURRENT CHANGE ORDER
Subtotal $ 150,004.93
Subtotal $
(4,349.02)
Sales tax @ 8.6% $ 12,900.42
Sales tax @ 8.6% $
(374.02)
Total $ 162,905.35
Total $
(4,723.04)
Total Change Orders To Date $ 158,182.31
New Contract Amount $ 4,792,470.11
IS CONTRACT TIME AFFECTED BY THIS CHANGE ORDER YES NO
Contract Time Prior to this Change Order ................................. 370/420
Modification to Contract time by this Change Order .................... 40
Revised Total Contract Time .................................................... 410/460
Itis mutually agreed by both parties that this Change Order fully describes the change(s) that is (a. e) being made
and that the compensation for this Change Order is full and complete and is the only compensation due or owing for
this Change Order. Further, it is mutually agreed that this document will supplement the present Contract
Documents and that the provisions of the previously executed Contract Documents shall apply to this Change Order.
AG EE TO AN ACCEPTED: APPROVED:
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City of Pasco — Public Works Department
Change Order No,!'WBackup Sheet
Description of Need & Cost Evaluation
Prepared by: Don Tulloch, P.E. — Gray & Osborne, Inc.
Date: November 3. 2016
COP 031 — Headworks Metal Cover Modifications:
Background Information: The plans did not show a specific size for the headworks metal cover
plates. The plates would have been very large (4'x5' and 6'x9') and hard for plant operators to
remove. This change order provides for cutting and supporting these plates in smaller,
manageable sizes. It also includes the addition of stiffeners because the newly installed 1/4"
plates allow more deflection than the existing 3/8" plates above the headworks.
Cost Evaluation: The Contractor had to retrofit the plates in place and perform additional
welding to add the necessary support and stiffeners. The cost to perform this work appears to
be reasonable.
The final additive price for this change item is ..........................
Increase contract time (calendar days) .....................................
Page 1 of 4
..... $3,532.23
........15 days
City of Pasco — Public Works Department
Change Order No�'y"ackup Sheet
Description of Need & Cost Evaluation
Prepared by: Don Tulloch, P.E. — Gray & Osborne, Inc.
Date: November 3, 2016
COP 038 — Miscellaneous Field Changes:
Background Information: The first item is for the clarifier drain valve operators. Because of the
size of the vault access hatch, the valve operators/boxes had to be moved out of alignment with
the valves. The Contractor had to purchase U -joints to remedy this issue.. The second item is
for the exploration to find the existing irrigation line and then connect to it. The third item is for
the labor and materials required to retrofit the existing clarifier scum tip trough so that it could be
connected to the newly constructed scum pump station. The fourth item is to remove the trip
hazard near the existing tip trough vault by sawcutting the existing concrete and re -pouring
concrete flush with the sidewalk.
Cost Evaluation: The U -Joints cost approximately $1,950 in material cost, the connection to the
irrigation line cost approximately $1,700 in labor and equipment cost, the tip trough cost
approximately $900 in labor and material cost, and elimination of the trip hazard cost
approximately $1,400, primarily in labor costs. These costs appear to be reasonable.
The final additive price is.......................................................................
Increase contract time (calendar days) ..................................................
Page 2 of 4
............. $5,936.96
................15 days
City of Pasco — Public Works Department
Change Order No),W!3ackup Sheet
Description of Need & Cost Evaluation
Prepared by: Don Tulloch, P.E. —Gray & Osborne, Inc.
Date: November 3, 2016
COP 041 — Miscellaneous Electrical Changes:
Background Information: The plans showed control for CV -257 and CV -258 going to LCP 400,
but they should have gone to LCP 250, so new conduit had to be run. Also, the three position
switches for the clarifiers needed to be replaced with two position switches.
Cost Evaluation: This proposal was reviewed by the electrical engineering consultant and
appears to be reasonable.
The final additive price is...........................................................................................$1,181.79
Increase contract time (calendar days)........................................................................10 days
Page 3 of 4
City of Pasco — Public Works Department
Change Order No �*Backup Sheet
Description of Need & Cost Evaluation
Prepared by: Don Tulloch, P.E. — Gray & Osborne, Inc.
Date: November 3, 2016
COP 044 — Site Concrete
Background information: The Contractor's concrete slab construction in the vicinity of the
clarifiers had less than desirable finishing which resulted in spot surface blemishes and the work
was rejected. In lieu of removal and replacement of the slabs in question, the Contractor has
offered a credit to the City of Pasco in addition to spot repairing the various blemishes plus
removal and replacement of a small trapezoidal area near the catch basin where joints were not
properly aligned.
Cost Evaluation: The Contractor initially offered $8,900 for acceptance of the slabs. This
number was determined to be lower than desired for acceptance of the slabs. They then
offered $12,000. This offer was then negotiated to a final offer of $15,000 plus spot repair of
blemishes. This cost appears to be a reasonable compensation for the aesthetic blemishes in
the slabs.
The final deductive price is.................................................................................... ($15,000.00)
There is no change in contract time related to this item.
Page 4 of 4