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HomeMy WebLinkAboutApollo - Change Order No. 3 CP7-WT-2A-11-05 Columbia Water SupplyCITY OF PASCO PUBLIC WORKS DEPARTMENT CONTRACT CHANGE ORDER NO. 3 Project No: CP7-WT-2A-11-05 Project Title: Columbia Water Contractor: Apollo, Inc., 1133 W. Columbia Drive, P.O. Box 7305, Kennewick, WA 99336 Description of Change: COP 4, 6, 7, 8, 9, 10, 11 and 13 Detail as Appropriate: See Change Order Proposal backup information. Contract Bid Amount: $ 6,983,000.00 SALES TAX @ 8.6%: $ 600,538.00 Total: $ 7,583,538.00 PREVIOUS CHANGE ORDER CURRENT CHANGE ORDER Subtotal $ 92,831.90 Subtotal $ 136,790.67 Sales tax @ 8.6% $ 7,983.54 Sales tax @ 8.6% $ 11,764.00 Total $ 100,815.44 Total $ 148,554.67 Total Change Orders To Date $ 249,370.11 New Contract Amount $ 7,832,908.11 IS CONTRACT TIME AFFECTED BY THIS CHANGE ORDER YES NO Contract Time Prior to this Change Order ................................. 500 Modification to Contract time by this Change Order. ................... 0 revised Total Contract Time .................................................... 500 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. AGREED TO AND ACCEPTED: COWTRACTOR Date APPROVED: F Date APPROVED: "2,g-,-,,2W1� ',- 3-/-/e PROJECT MANAGER Date APPROVED: DIRECTOR City of Pasco Columbia Water Supply Change Order Proposal COP 004 — Polyethylene Sheetinq for Ductile Iron Piping (30 -inch Raw Water Line Background Information: Specification section 02620-2.3F requires that all ductile iron pipe and fittings be encased in polyethylene sheets or tubes. The Contractor has requested that this requirement be eliminated. The City has indicated that it does not use polyethylene encasement for its other ductile iron piping and that elimination of this requirement may be acceptable. The Engineer does not take exception to eliminating this requirement. Cost Evaluation: The proposed credit includes $1,087.90 in material cost and $820.82 in labor costs. The final deductive price for this change item is ..................................................... ($1,908.72) There is no change in contract time related to this item. Page 1 of 1 City of Pasco Columbia Water Supply Change Order Proposal COP 006 — Chemical Feed Tubing Background Information: Detail 4 on Sheet M-6 and Detail 1 on Sheet C-10 show one 3/4" chemical feed line and one 1/2" chemical feed line. The City has indicated that it does not have a use for the 1/2" chemical feed line, but the installation of a second 1/4" line could be useful in case there is an issue with the'/" line used for chlorine injection. The Contractor already has the 1/2" tubing on site and their supplier has notified them that this length of braided tubing is not a stock item which can be returned. The unused %" tubing shall be salvaged to the City and two '/4" chemical feed lines shall be installed. Cost Evaluation: The material cost for the extra'/<" tubing, including markup, is $2,518.50. There is no additional cost for installation. The final additive price for this change item is..........................................................$2,518.50 There is no change in contract time related to this item. Page 1 of 1 City of Pasco Columbia Water Supply Change Order Proposal COP 007 — Remove Abandoned 24" DI Background Information: While excavating for the new 30 -inch raw water line in Court Street, the Contractor uncovered a 24 -inch ductile iron pipe and fittings that is capped and not shown on the drawings. After consulting all other utilities including the irrigation company, it is decided that the line is not in service and a portion of the pipe causing interference with new construction can be removed and realigned. The line was tapped and found to be empty. The line was removed as shown on the attached marked sketch and a straight portion of what was removed was connected to the remaining pipe and capped outside the edge of the pavement. Cost Evaluation: The material, labor, and equipment cost totals $17,460.20. The final additive price for this change item is........................................................$17,460.20 There is no change in contract time related to this item. Page 1 of 1 City of Pasco Columbia Water Supply Change Order Proposal COP 008 — Remove MH Cone and Extend 18 -inch RW Background Information: Demolish the existing manhole cover and cone as shown on the attached markup of Sheet C-6. Demolish existing 24 x 18 tee with 24 -inch cap or plug. Delete 24 -inch restrained plug called for on the drawings. At some time in the future, the City will extend the 18 -inch irrigation line (formerly raw water). Due to the numerous utilities in Court Street at this location, it is best to extend the 18 -inch line toward the right-of-way line now while the street is excavated and while conflicting utilities are exposed. Connect to existing 18 -inch line where 24 x 18 tee is removed with a 45 -degree bend and extend to near the right-of-way line on the northeast side of Court Street. See green line on attached markup. Use 45 -degree bends as required to go under existing duct bank. Provide thrust restraint as necessary. Provide 18 -inch cap or plug with thrust block at end. Place marker at end of pipe and provide detailed location for future locate. Cost Evaluation: The material, labor, and equipment cost totals $25,402.76. The majority of the cost is for the materials required. The final additive price for this change item is........................................................$25,402.76 There is no change in contract time related to this item. Page 1 of 1 City of Pasco Columbia Water Supply Change Order Proposal COP 009 — RW Line Flushing at WTP Background Information: The City requests that flushing be performed on the new 30 -inch RW line from the river intake pump stations to the Water Treatment Plant. This can be achieved by furnishing and installing two temporary pipes in the Water Treatment Plant building that extend out the overhead door and discharge into the backwash basin. This is necessary to protect the membrane filters from construction dust and debris. Cost Evaluation: The material, labor, and equipment cost is shown below. The majority of the cost is for the materials required. The final additive price for this change item is..........................................................$9,074.58 There is no change in contract time related to this item. Page 1 of 1 City of Pasco Columbia Water Supply Change Order Proposal COP 010 — Interior Painting Background Information: The masonry subcontractor used colored mortar on portions of the interior wall and it is not acceptable. The City is interested in coating the interior walls of the pump station building, including the pump room, the electrical room, and the compressed air room shown on Sheet A-3. Please provide proposed pricing to coat the interior CMU walls with one of the following systems: 1. Prime coat Tnemec 115@ 2.0-4.0 mils DFT; One coat Tnemec 1029 @ 2.0 — 4.0 mils DFT 2. Prime coat Tnemec 1254 @ 100 SF/Gal; One coat Tnemec 1029 @ 2.0 — 4.0 mils DFT It is understood that the Tnemec 1254 system may provide a nicer finish but may cost more than the Tnemec 115. Please provide pricing for each option so that the City can determine which coating system is desired. It shall be noted that the coating system shall be applied in accordance with the product data sheets. A period of 28 days must pass for curing of the CMU walls prior to coating. In addition, the coating system shall be installed in the appropriate temperature range, which may require heating or waiting until a period of warmer weather. The color shall be light gray. Cost Evaluation: After negotiations, the cost of the Tnemec 115 system is $9,848.28 and the cost of the Tnemec 1254 system is $12,983.28. The City decided that they would prefer the Tnemec 1254 system as it is expected to provide a smoother, less porous finish. The final additive price for this change item is........................................................$12,983.28 There is no change in contract time related to this item. Page 1 of 1 City of Pasco Columbia Water Supply Change Order Proposal COP 013 —Utility Impacts Background Information: Throughout the project, the Contractor has been impacted by unknown utilities and concrete or CDF encasement within Court Street. The production impacts have been monitored by Apollo's site superintendent and the on-site inspector representing the City. The impacts have been measured in terms of additional hours of labor, equipment usage, materials, and disposal fees for concrete encountered. Some of the largest impacts were caused by the following: • 8 -inch irrigation line had to be removed and replaced due to its alignment conflict with the new 30 -inch RW line near Station 2+50. This is where the new RW line runs on the south side of the road past the existing 18 -inch intake line before the 45 degree bend to the northeast. • Unknown 24 -inch line near the existing 18 -inch intake line which Apollo had to work around. • Significant concrete encasement near the unknown 24 -inch line and the 8 -inch irrigation line which required Apollo to jackhammer and dispose of concrete in order to continue excavation. • 2 -inch power line near the 8 -inch irrigation line around Station 2+50 (and other locations) required additional efforts to complete excavation and install the 30 -inch RW line. • Various other smaller lines not shown on plans or marked. • Various other locations with utilities encased in concrete or CDF. Cost Evaluation: The material, labor, and equipment cost is shown below. The cost was determined by the number of hours of labor and equipment usage added by the utility impacts and by the additional material invoices. The cost includes 21 utility impact claims. The final additive price for this change item is........................................................$68,254.09 There is no change in contract time related to this item. Page 7 of 1