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Home My WebLink AboutCO 2 yrr►' CITY OF RENTON Public Works Department CONTRACT CHANGE ORDER AGREEMENT CONTRACT: CAG-11-115, Lake Ave S/Rainier Ave S Storm System Project C.O.# 2 CONTRACTOR: James W Fowler Company SUMMARY OF PROPOSED CHANGE: CO-2A Boring#1,Sand Fill for Casing Pipe per LS This change order is to fill the 42-inch steel casing pipe for boring#1,from C13-4 to C13-3.5,with blown sand. The work includes installing welded angle irons posts and rails on the inside of the 42-inch steel casing, setting the rails to design grade for the 34-inch carrier pipe, plugging both ends of the 42-inch casing with bricks and grout, installing vent pipes, plugging and filling the 34-inch carrier pipe with water, and blowing sand into the annular space between the 42-inch casing pipe and 34-inch pipe so the 34-inch pipe is supported by sand for its entire length. The wood skids in the original design are deleted and a credit for the deleted work and materials is included in the JWFowler Change Order Proposal. The change order includes all labor,equipment, materials, and taxes needed to accomplish the work. The cost is based on the JWFowler Change Order Proposal COP-010.01, dated 12/7/11, and attached to this change order. Measurement for payment will be prorated as the work is accomplished. The unit contract price shall be full payment for all Work needed to complete the sand fill in the steel casing pipe. Cost= $5,486.05 per LS= $5,486.05 CO-2B Additional Water Tests and Analysis per Force Account The King County Wastewater Program Discharge Authorization permit to allow groundwater from the dewatering system to be discharged to the sanitary sewer was received after the project was awarded. The Discharge Authorization required sampling and testing for different water parameters than were included in the project bid document. This change order provides for all additional costs including labor, lab costs,equipment, materials, markup, and taxes needed for the additional water sampling and analysis. The costs are based on the Libby Environmental lab costs and the JWFowler Change Order Proposal COP-013, dated 12/1/11, and attached to this change order. All testing costs will have a markup of 21%added per WSDOT Standard Specification section 1-09.6 Force Account for Services, and the applicable Contractor's markup (12%)and taxes.The costs for the different water testing parameters by Libby Environmental are listed below: Parameter Lab Cost WSDOT Services WSDOT Contrct Cost per test Markup(21%) Markup(12%) BTEX $60.00 $12.60 $8.71 $81.31 FOG(fats,oil,grease) $70.00 $14.70 $10.16 $94.86 Settleable Solids $25.00 $5.25 $3.63 $33.88 pH $20.00 $4.20 $2.90 $27.10 Metals,if required MTCAS $100.00 $21.00 $14.52 $135.52 4 Metals $75.00 $15.75 $10.89 $101.64 Cyanide $60.00 $12.60 $8.71 $81.31 For Rush Orders in Lab FOG (fats,oil,grease) $90.00 $18.90 $13.07 $121.97 Settleable Solids $40.00 $8.40 $5.81 $54.21 pH $30.00 $6.30 $4.36 $40.66 The Contractor shell provide written copies of all water testing and analysis results to the City. The City may revise the sampling and analysis program as needed to comply with the requirements of the discharge authorization,and ongoing test results. Additional tests for different parameters may be added by the City at mutually agreed upon costs between the City and the Contractor. The actual number of tests needed and frequency of sampling may be changed by the City based on the analysis results and permit requirements. No additional costs shall be claimed for any changes in the sampling and analysis program. Measurement for this item will be based on the actual number and type of tests performed. Payment will be per the unit costs for each different type of test performed, plus applicable WSDOT markups and taxes. The unit contract price for testing shall be full payment for all Work needed for this item including collecting samples,analyzing the samples for the various parameters,and providing the written test results to the City. Estimated Cost=Approx. 120 tests x average$90.00 per test= $10,800.00 ESTMATED TOTAL CHANGE ORDER COST= $16,286.05 Additional Working Days added to the Contract for this Change Order: 2 days ORIGINAL CONTRACT AMOUNT CURRENT CONTRACT AMOUNT ESTIMATED NETCHANGE ESTIMATED CONTRACT THIS ORDER TOTAL AFTER CHANGE $994,925.00 $1,001,555.00 $16,286.05 $1,017,841.05 SIGNATURES: Contractor: Date: Project Engineer: Date: Approved By: '�t, " ° Date: --• (Utility stems Director) i t James W Fowler Co. W13 1 General Contractors CHANGE ORDER WORKSHEET PROJECT Lake Ave S/Rainier Ave S Project No: 2011-05 1 Date: 12/7/2011 OWNER: City of Renton Work Description: REF#'s COP 010.01 Bore#1 sand filled casing pipe CC# 999000-010 LABOR COSTS HOURS RATE TOTAL CLASSIFICATION REGULAR OVERTIME REGULAR OVERTIME COST Laborer Credit for wood skids (45.00) - 44.93 - (2,022.02) Welder Labor for adding 3/4"angle iron skids 38.00 - 56.56 2,149.39 Laborer Grout ends for seals 16.00 - 44.93 - 718.94 Laborer Blow sand in pipe 12.00 - 44.93 - 539.20 Laborer Fill 36_pi a w/water 16.00 - 44.93 -_ 718.94 TOTAL LABOR COST 37.00 - 2,104.45 LABOR MARKUP 29% 610.29 GRAND TOTAL LABOR 2,714.74 EQUIPMENT COSTS HOURS RATE TOTAL DESCRIPTION UNIT NO. REGULAR OT REGULAR OT Rate COST Welder 24.00 16.00 - 17.05 - 272.80 Small Tools 4.00 37.00 - 12.00 - 444.00 2)36"Pipe Plugs - 1.00 Week - 400.00 TOTAL EQUIPMENT 1,116.80 EQUIPMENT MARKUP 21% 234.53 Tax 9.50% 128.38 GRAND TOTAL EQUIPMENT 1,479.71 MATERIALS&RENTAL COSTS TOTAL Material for skids,pressure treated lumber and SS Straps 1.00 LS (975.00) (975.00) Material for angle iron skids 1.00 LS 350.00 350.00 Grout for end seals w/pipe connections 2.00 EA 400.00 800.00 Dried Tunnel bore sand 12.00 Ton 35.00 420.00 TOTAL MATERIALS&RENTALS 595.00 MATERIALS&RENT.MARKUP 21% 125.00 Tax 9.50% 68.40 GRAND TOTAL MATERIALS&RENTALS 788.40 SUBCONTRACTOR TOTAL DESCRIPTION QUANTITY I UNITS I UNIT PRICE COST Trucking for Blowing sand in casing pipi 1.00 LS 449.20 449.20 TOTAL SUBCONTRACTOR 449.20 SUBCONTRACTOR MARKUP 0-25K 12% 54.00 SUBCONTRACTOR MARKUP 25K-100K 10% GRAND TOTAL SUBCONTRACTOR 503.20 TOTAL EQUIPMENT,MATERIAL,&SUBCONTRACTS 5,486.05 LOP,Contingency and Inefficiencies unforeseen 0% - SUB TOTAL»» 5,486.05 TOTAL i $ 5,486.05 12/7/2011 COP 010.1 James W Fowler Co. General Contractors CHANGE ORDER WORKSHEET PROJECT Lake Ave S/Rainier Ave S I Project No: 2011-OS Date: 12/1/2011 OWNER: City of Renton Work Description: REF#'s COP 013.00 Settleable Solids,FOG and Btex testing CC# 999000-010 LABOR COSTS HOURS RATE TOTAL CLASSIFICATION REGULAR OVERTIME REGULAR OVERTIME COST TOTAL LABOR COST - - LABOR MARKUP 29% - GRAND TOTAL LABOR EQUIPMENT COSTS HOURS RATE TOTAL DESCRIPTION UNIT NO. REGULAR OT REGULAR OT Rate COST TOTAL EQUIPMENT EQUIPMENT MARKUP 21% - Tax 9.50% - GRAND TOTAL EQUIPMENT - MATERIALS&RENTAL COSTS TOTAL EA - TOTAL MATERIALS&RENTALS - MATERIALS&RENT.MARKUP 21% - Tax 9.50% - GRAND TOTAL MATERIALS&RENTALS - SUBCONTRACTOR TOTAL DESCRIPTION QUANTITY UNITS UNIT PRICE COST BTEX 41.00 EA 72.60 2,976.60 FOG 41.00 EA 84.70 3,472.70 Settleable Solids 41.00 EA 30.24 1,239.64 TOTAL SUBCONTRACTOR 7,688.94 SUBCONTRACTOR MARKUP 0-25K 12% 922.67 SUBCONTRACTOR MARKUP 25K-100K 10% GRAND TOTAL SUBCONTRACTOR 8,61 1.61 TOTAL EQUIPMENT,MATERIAL,&SUBCONTRACTS 8,611.61 LOP,Contingency and Inefficiencies unforeseen 0% - SUB TOTAL»» 8,611.61 TOTAL $ 8,611.61 1217/2011 COP 010.0