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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: 7/ /7 /( CONTRA OR Date APPrVED Z. 6) y (A CITY ENGINEER Date° APPROVED: t PROJECT MANAGER Date AP O ED-' PFJI3LIC WORKS Dale DIRECTOR & U(4 y Iq N N 0) 0) m 0 of a� w u N O co Q N W U) r CL U C Z Y U rO V Q mi O N O N 7 d a O m m c m O U w > N r O F- w IL Ya. Q � ❑ `w r a LU U U Q Z Q O H ❑ w LU O a 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: �^ 01 / f 2A11r, C NTRACTOR Date PROJECT MANAGER Date APPROVE[^ CIN ENGINE R gate AP OVED: ofG� l Q l P BLIC WORKS ate DIRECTOR C5 Z w w O O w c1) Q 2 U H Q z Z O U H a w a CL CL a O U N w A ci H 'o a` N O CO a N W U) r CL U O Z Y i7 R_ O a` V (14 N 0) 0) c 0 U 7 ; c 0 U W 2M C R d U O U L Y C 6 w O w a a Q 6 LU F CL W U U Q 0 Z Q O H 0 LU uiQ M (D O O N O) r O N cD O M D M rn CO O o O O 2NEA� f Q w C O R F � CJ M a O + N 0) O O O U O U) M C) E m L Ln Q64 ,(fl� U � O c O m a 'c �a N r M 'O c m R C'f 0 0 m U W 0 N C L � c U R � j L U . U O U a � � 0 0Liw 0 0 0 Y 0 a) 0 C U 3 m m c U R U N 0 y N _ rG (D M M V V E aaaa d Z 0 0 0 0 6 w O w a a Q 6 LU F CL W U U Q 0 Z Q O H 0 LU uiQ 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