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HomeMy WebLinkAboutStaff Report 4.A 01/08/2007PROJECT NUMBER C500402 0000A-i'Ui \I85it,0,0/ CONSTRUCTION MANAGEMENT PROGRESS REPORT No. 14 November 2006 4.A January 8, 2007 The Covello Group PARTICIPANTS Owner: City of Petaluma I 1 English Street Petaluma, CA 94952 Contractor: Kiewet Pacific Co. 5000 Marsh Drive Concord, CA 94520 Design Engineer: Carollo Engineers 2700 Ygnacio Valley Rd, Suite 300 Walnut Creek, CA 94598 Environmental ESA Management: 8950 Cal Center Drive, Bldg 3, Suite 300 Sacramento, CA 95826 Programmer: ArcSine engineering 970 Executive Way Redding, CA 96002 Construction The Covello Group Manager: 1660 Olympic Blvd, Suite 300 Walnut Creek, CA 94596 Mike Ban Director (707) 778-4487 Margaret Orr Engineering Manager (707) 778-4589 Charlie Gardner Project Manager (925) 516-4600 Larry Koneck Project Engineer (707) 782-9826 Ext. 31 Bill Knopf Principal (925)299-6733 Doug Wing Design Engineer (925) 299-6733 Jim O'Toole Project Engineer (916) 564-4500 Jennifer Garrison Environmental Manager (916) 564-4500 Doug McHaney Project Manager (530) 222-7204 Steve Stewart Lead Programmer (530) 222-7204 Bruce Presser Principal (925) 933-2300 Ken Sinclair Construction Manager (925) 260-2943 Ed O'Brien Field Engineer (925) 382-1246 SUMMARY OF CONSTRUCTION STATUS • Contractor: KIEWIT PACIFIC CONSTRUCTION Base Contract Amount (Total Project) .................................... $ 110,329,000.00 Change Orders Executed .................................................. $ 763,343.00 Total Contract Cost ......................................................... $ 111,092,343.00 Contract Amount Earned ................................................... $ 43,732,553.00 Progress Payment for November 2006 ........................................$ 3,788,748.00 Previous Progress Payments (excludes retention) ...................... $ 35,949,425.00 Estimated Percent Complete............................................................. 39% • Design Engineer: Carollo Engineers Authorized Budget (Total Project) ....................................... $ 4,354,075.00 Billings to Date...............................................................$ 1,943,952.33 • Environmental Manager: ESA Authorized Budget (Total Project) ...................................... $ 1,434,830.00 Billings to Date............................................................... $ 477,853.26 ArcSine engineering Authorized Budget (Total Project) ....................................... $ 2,340,951.00 Billings to Date.............................................................. $ 754,777.51 * Construction Manager: The COVELLO GROUP, Inc. Authorized Budget (Total Project).... .................... ............. $ 10,231,509.00 Billings to Date............................................................... $ 2,306,567.43 Schedule Notice to Proceed................................................................................ October 10, 2005 Base Contract Duration............................................................... 1278 consecutive days Original Completion Date..........................................................................April 9, 2009 Time Extension Authorized*.............................................................................. 52 days Revised Duration*.......................................................................1330 consecutive days Revised Completion Date*.......................................................................May 31, 2009 Weather Days (included in base duration*.........................................................40 days Weather Days Expended (included in time expended)* ..................................... 84 days TimeExpended................................................................................................ 416 Days Percent Time Expended........................................................................................... 31% * Includes November weather days; however, officially the contract change occurs once all parties sign the change order. This will occur in December. Construction Manager's Summary 1. Schedule The project remains on schedule for completion by May 2009. 2. Work Progress GENERAL Weather The contract change order for a one day contract extension due to inclement weather in October was processed. November had 5 weather days; the contract change order will be processed next month. Rookery The 250 foot buffer will remain in place at the Rookery Tree due to environmental constraints established in the EIR. This buffer will not impact the progress of work on the site. Wetland Marsh Trail No work was performed this month. Site Grading Kiewit began preparation of the subgrade for asphalt paving of the entrance road; however, weather conditions in November caused the base material to become too wet to compact. Efforts to dry the material were not successful. Paving at the entrance road is now scheduled for next year when weather conditions allow for the base rock to dry. Kiewit continued to grade rock to winterize the site roads and work areas. Yard Piping The following pipelines were placed this month: The 24 -inch discharge pipe forced main at the Storm Water Pump Station. The 6 -inch chemical drain pipe from Filter Support to the Sewer Lift Station. The double containment line at the Filter Support Electrical Duct banks The following duct banks were placed and backfilled tlris month: West side of Secondary Clarifier number two. Oxidation Ditches Walls continue to be formed and placed at both Oxidation Ditch one and two. To date approximately 75% of the walls in Oxidation Ditch One have been completed and 66% of the walls in Oxidation Ditch Two have been completed. Secondary Clarifiers The final wall pours at Clarifier One have been completed; Clarifier Two has two more wall pours. The Iast wall placements involve the scum and effluent boxes causing the rebar and form work to be more extensive. Falsework (temporary framework to support the forms prior to concrete placement) erection began at the inside perimeter of both clarifiers for the launders. The launder is used to channel the clean water from the top of the clarifier to discharge water line. Secondary Clarifier Flow Split Structure Excavation began at the flow split structure. This split structure is designed to distribute effluent from the Oxidation Ditches to the Secondary Clarifiers. Main Electrical Building Underground conduit placement continued throughout the entire month. PG&E held their pole for the contractor to connect the underground ductbank to the pole. Other work associated with the project along Lakeville Highway consisted of removal of six abandoned power poles. Headworks Facility Kiewit completed placing walls at elevation 16.25 and the initial vortex wall was poured for the grit classifier. Falsework erection began for the elevated slab beneath the influent channels. Thickening Building The walls were completed at the thickened sludge area and rebar was placed at the adjacent sump boxes. Interior column rebar cages that will be incorporated into a wall for the enclosed portion of the thickening structure was hoisted in to place. Boiler Building The underground piping and conduit placements and encasements were completed. Kiewit began backfilling the area. Storm Water Pump Station No work was performed this month. Operations and Maintenance Building No work was performed this month. Fabrication of the structural steel for the roof is under way in Mexico. UV Disinfection Facility Eleven of twelve walls are complete at the UV building. Three walls were poured. Tertiary Filter Excavation completed on the tertiary filter. Rebar and formwork began along with placement of in -slab piping. Filter Support Building No work was performed this month. Recycled Water Pump Station Concrete was placed in the base of the structure to give a working surface for the installation of the pump cans. MCC 9 There are several electrical buildings on the site. This is the first to be excavated and will serve the urban recycled water area of the plant. Placement of electrical conduit was completed and encased in concrete. Formwork for the structure's footings was constructed. Chlorine Contact Basin (CCB) The 26" treatment wetlands effluent (TWE), the 42" polishing wetlands effluent (PWE), and the 36" treatment wetlands flow (TWF) pipelines were fused and placed into a trench at the CCB. Conduit was also placed and backfilled this month. A high voltage power shutdown occurred late in the month so that Kiewit could safely locate underground high voltage lines. Wetlands Pump Station The interior walls were stripped and the fillets were formed and poured. Falsework and formwork was erected at the pump station for the elevated deck. Ironworkers started placing rebar for the deck beams. Ponds 9 & 10 Hydroseeding in both ponds was completed and bullrush plants were planted into Pond 9 on an 8' by 8' grid. The plants will flourish once submerged under water and are intended to filter algae blooms from the treated water. Bulh-ush planting continues. 3. Contract Changes Twenty five new change orders were prepared in the month of November. These change orders will result in a net reduction of $17,531.00 to the contract value. To date a total of 89 change orders have been processed with a total value of $763,383.00. The largest additive change orders include one order to revise the anchorages for the aerators in the oxidation ditches ($40,941), one to lower the pipe elevation for the 42" sewage (RSG) pipeline ($18,726), one to change the PLC system material for the C Street Pump Station ($14,915), and finally one to change the slide and sluice gates ($11,177). The largest deductive change orders include one to change the standard diameter ration (SDR) for the high density polyethylene (HDPE) pipelines (-$52,415), and one to change the storm drain pipes from reinforced concrete pipe (RCP) to corrugated high density polyethylene pipe (CHDPE) (-$72,398), which is the City standard. 4. Field Orders Two new field orders were prepared this month: one to remove several trees along the site entrance road ($1,100) and one to modify the beam steel at the wetlands pump station ($2,000). A total of forty-nine field orders have been prepared for the project. Of those, sixteen remain active with a total estimated value of $104,400.00. 5. Testing Various pipe and compaction testing was performed around the site. Concrete sampling and testing was on-going throughout the month. Samples were taken from each structural concrete placement and compression tests completed. 6. Anticipated Work for Next Month Kiewit will finish placement of the walls at the clarifiers and continue constructing the launder decks. Primary wall pours will continue at both oxidation ditches. Electrical conduits and conduit risers will be encased in concrete and the underground pipe will be backfilled and the Main Electrical Building. At the south cluster, deck and the vortex walls in the grit classifier at in the Headworks will continue. The Thickening Building pit walls will be coated and backfilled and the Wetlands Pump Station deck will be poured. The footings will be formed and poured at the Boiler Building. In the West Cluster, W disinfection walls will be completed and backfilled; work on the slabs will commence. The tertiary filter slab rebar will be completed and the slab poured and forms stripped. The pump cans will be set at the Recycled Water Pump Station. Work at the West Access Road bridge will start up again and the access road will be rocked for the winter. Planting will continue at the ponds and electrical ductbanks will be placed and backfilled at the CCB. 4 PROJECT ADMINISTRATION SUBMITTAL STATUS [NWW2 i"W6301 VIA "10110,03-0 Total Cost of Total November Active Active Orders Change Orders Issued 93 16 4 $14,020.00 Field Orders Issued 49 2 16 $104,400.00 CHANGE ORDER SUMMARY Value of Change Orders Executed in November ($17,531.00) Value of Change Orders Executed to Date $763,343.00 Percent to Date of Original Contract 0.69% WEATHER RELATED DELAYS Days Base Contract Allowance 40 Weather Related Days in November 5 Weather Related Days to Date 84 5 Received To Date November Returned Pending First Time Shop Drawing Submittals 581 20 561 16 Request for Information 713 45 701 12 C. M. Request for Information 82 1 81 1 [NWW2 i"W6301 VIA "10110,03-0 Total Cost of Total November Active Active Orders Change Orders Issued 93 16 4 $14,020.00 Field Orders Issued 49 2 16 $104,400.00 CHANGE ORDER SUMMARY Value of Change Orders Executed in November ($17,531.00) Value of Change Orders Executed to Date $763,343.00 Percent to Date of Original Contract 0.69% WEATHER RELATED DELAYS Days Base Contract Allowance 40 Weather Related Days in November 5 Weather Related Days to Date 84 5 mmliiqm.�Wfilim Conduit placement under the MCC 9 building looking NE _2005 ___ 2006___ 1aGf . _..,..--.._ _ 2[00— OrEg Rern- Early Early % ',Tatat 3,0#N:D.J:F[h11RfM`.J.J'A SAO?A: D: J. 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Status 1 Time extension for additional soil sampling 0.00 8 Executed 2 Lime treatment at Ox Ditch & Secondary Clarifiers 125,000.00 RFQ 011 Executed 3 Board up Farmhouse 3,385.00 FO 004 Executed 4 Hay Stacker Relocation 493.00 FO 002 Executed 5 Terrorism Insurance and Increased Earthwork 0.00 RFQ 001 Executed 6 Meter in Temporary Recycled Water Pipeline 3,023.00 FO 006 Executed 7 Temporary Power for Pond 1 Aerators 1,270.00 FO 007 Executed 8 Pavement Repair on Cypress and McDowell 419,681.00 RFQ #21 Executed 9 Conduit Encasement Coloring Agent (47,000.00) RFI 062 Executed 10 Delayed Caltrans Encroackment Permit 16,723.00 FO 005 Executed 11 Trench Cut -Off Walls (18,600.00) RFI 057 Executed 12 Horiz Aerators Extended Warranty in lieu of Testing 0.00 RFI 152 Executed 13 Deletion of Prime Coat under AC Pavement (29,700.00) RFI 084 Executed 14 Replace PVC Sched. 40 w/ EB 20 Conduit DB (21,774.00) RFI 081 Executed 15 Delete Lakeville Highway Access 40,000.00 RFQ 15 Executed 16 Contract Time Extension for Weather Days 3-4/06 0.00 38 C to Cm Ltrs Executed 17 Change Valve Types 0.00 RFQ 10 Executed 18 Replace EMT conduits by MC cable @ O&M Bldg (14,777.00) RF[ 082 Executed 19 Inverter Duty Motors at Oxidation Ditch Aerators 16,466.00 CL 35 Executed 20 Aerated Lagoon 1 Pond 1 Mod Milestone Dates 0.00 Executed 13 21 Additional Striping and Loops on McDowell 13,747.00 Executed 22 Catch Basins Invert Changes (9,997.00) RFQ131RF1116 Executed 23 Oxidation Ditch Sump Modifications (7,750.00) RFQ 02.002 Executed 24 Change Buried Conduits PVC GRS to PVC Sch. 40 (213,038.00) RFI 154 Executed 25 Temporary Power to Existing Aerators 4 and 7 7,956.00 FO 8 Executed 26 O&M Bldg: Ceiling & Wall Rms 19.57,19.58, 19.59 4,287.00 RFQ 20 Executed 27 Provide Portable Generator Pads at Ponds 2,554.00 FO 14 Executed 28 FS Bldg: Extend Conduit Stub -ups Beyond DB 9,190.00 RFQ26/RFI218 Executed 29 HW: Handrail Extension to Complete Deck Closure 1,254.00 RFQ 27 Executed 30 Pond 4 Aerator Temp Power 883.00 FO 10 Executed 31 Aerated Lagoon: Reconnecting of Aerator No. 2 537.00 FO 11 Executed 32 Unknown Utility at Pond 1 North Side 855.00 Executed 33 Ductbank Encasement with Reinforcing 24,884.00 RFQ 31 Executed 34 Gun Safe for Storage of Bid Documents 2,410.00 FO 17 Executed 35 S&C Pad Mounted Switch Additions 75,200.00 RFQ 39 Executed 36 Permanent Power Supply for Pond 1 Aerators 98,000.00 RFQ 4 Executed 37 Temporary Fire Hose 851.00 FO 12 Executed 38 Change material for Temporary Debris Collector (36,150.00) RFI 061 Executed 39 Chemical Tank Pads @ Filter Support Bldg 4,425.00 RFQ 22 Executed 40 Disco Aerator No. 2 and reconnect Pond 4 Aerators 607.00 FO 13 Executed 41 Delete Steel Steps in Manholes (19,012.00) RFQ 09 Executed 42 Add 4" Butterfly Valve in Acid Digester 1,189.00 RF) 245 Executed 43 Delete Pre -Action Fire System @ Main Elect. Bldg (19,242.00) RFQ 49 Executed 44 Headworks Influent Box Modifications 3,000.00 RFQ 44 Executed 45 Transformer Pad at Restroom 9,498.00 RFQ 17 Executed 46 Addition of Const Joint at Oxidation Ditch Slabs 23,505.00 RFQ 33 Executed 14 47 Change Conduits PVC Rigid Steel to PVC Sch. 40 (21,912.00) RFI 251 Executed 48 Reader Board & Geogrid placement @ McDowell 6,000.00 FO 15 Executed 49 Plant Control System PLC Architecture (6,118.00) CL 17 Executed 50 Grit Pump Room Sump Pump Modification 1,326.00 RFQ 43 Executed 51 PLC Enclosure Size for PLCs 2, 3 and 8 5,446.00 RFQ 70 Executed 52 Additional Time Switches at O&M Bldg. 2,722.00 RFI 369 Executed 53 Extension for Pond 1 Aerators Milestone Date 0.00 spec 00800 Executed 54 Levee Repair at Berm Existing Ponds 8 & 9 289,279.00 Executed 55 Operations Bldg. Maintenance Window 1,022.00 RFI 151 Executed 56 In -Plant Pump Station Wall Penetration Details 2,807.00 RFQ 36 Executed 57 Alignment of 42" RSG line to Headworks 4,208.00 RFQ 23 Executed 58 Revision of Structural Joints at Headworks Facility 5,628.00 CL 21 Executed 59 Pond 9 & 10 Levee Pothole 1,400.00 FO 24 Executed 60 Add pipe for Future Pump Can @ RWPS 6,316.00 RFQ 76 Executed 61 Home Inspection of Farm House 746.00 FO 30 Executed 62 Alignment of 42" PWE line Cell D Transfer Structure 8,171.00 RFQ 86 Executed 63 Deletion of Locks on Motor Operated Coiling Doors (383.00) RFQ 091 Executed 64 Dewatering of Pond 8 and Mitigated Wetland 3,488.00 FO 19, 21 Executed 65 UV System Programming 2,777.00 CL 7 Executed 66 Septic Tank Removal at Farm House 739.00 FO 016 Executed 67 Changes to Slide and Sluice Gates 11,177.00 sub. 190 Executed 68 PLC System Material for C Street Pump Station RFQ 85 Executed 69 PLC -10 Analog Input Module 1,873.00 RFQ 98 Executed 70 Change Storm Drain Pipe from RCP to CHDPE (72,398.00) RFI 59.001 Executed 71 Delete CMU Coating on non -occupied structures (2,538.00) RFQ 90 Executed 72 Existing Utilities at West Access Road Entrance 8,543.00 FO 28 Executed 15 73 Change Handrail for Polishing Wetlands Structures 6,965.00 RFI 442 Executed 74 Change SDR for HDPE Pipe Lines (52,415.00) RFI 338 Executed 75 Addition of waterstop in wall @ Filter Support Bldg. 1,330.00 RFQ 62 Executed 76 Delete waterstop & starter walls @ HW, RAS PS, (4,206.00) RFQ 55.001 Executed 78 Contract Time extension for Weather Days 10/06 0.00 1 C to Cm Ltrs Executed 79 Deletion of waterstop and starter walls at Tertiary (1,384.00) RFI 352 Executed 80 Add waterstop at Grit Pump Area of Headworks 6,167.00 FO 20 Executed 81 Fuel Tank Removal at Farmhouse 2,972.00 FO 29 Executed 82 Revised Anchorage for Oxidation Ditch Aerators 40,941.00 FO 44 Executed 83 Deletion of Integrated System Shop Testing (ISST) 0.00 CL 029 Executed 84 Additional Dowels at Maintenance Bldg. 914.00 FO 45 Executed 85 Replace Fuses at MCC 3A after PG&E power spike 1,706.00 Executed 86 Remove/replace disco switch @ Aerated Lagoon 2,919.00 FO 33 Executed 87 Lower Invert Elevation for 42" RSG Line 18,726.00 FO 32.001 Executed 88 Addition of Roof Hatch @ Main Electrical Bldg. 3,195.00 RFQ 62 Executed 89 Filter Support Bldg: NG Connections and Valving 1,361.00 RFQ 79 Executed CHANGE ORDER TOTAL: 763,343.00 47 04/09/09 Contract Amount: 110,329,000.00 1278 Contract Substantial Completion Date Percent Change Orders: 0.69% 5/31/09 Totals: 111,092,343.00 1325 Current Substantial Completion Date 16 17 Cost Summary $12010001000 $100,000,000 - E $807000,000 - a a - - $601000,000 E $40,000,000 v Estimated Payment $20,000,000 - i --- Actual Payment 4-0 Lr) o LL Q Q o LL Q Q o Lf Q Q © ❑ o Months 17 QUALITY CONTROL CONCRETE TESTING Remarks Total Cubic yards of concrete placed this month Class A - 600 Class B - 0 Class C - 0 Class D - 0 Class CE - Total Cubic yards of concrete placed to date 13390 18 Number of 7 -Day Average 28 -Day Average Mix Designation Design Strength Samples Strength (PSI) Strength (PSI) (To Date) Class A 4000 156 3809 5100 Class B 4000 0 0 0 Class C 2500 0 0 0 Class D 4500 0 0 0 Class CE 2500 0 0 0 Remarks Total Cubic yards of concrete placed this month Class A - 600 Class B - 0 Class C - 0 Class D - 0 Class CE - Total Cubic yards of concrete placed to date 13390 18