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Home My WebLink AboutPRESENTATION 04/06/2009■ �ar.V �.F�IAFI\./I�F i11,11,117 r ly INi I PROJECT NUMBER C500402 11 r � V H mo CONSTRUCTION MANAGEMENT PROGRESS REPORT No. 41 February 2009 April 6, 2009 PARTICIPANTS Owner: City of Petaluma Mike Ban 11 English Street Director Petaluma, CA 94952 (707) 778-4487 Margaret Orr Engineering Manager (707)778-4589 Contractor: Kiewit Pacific Co. Clint Cole 5000 Marsh Drive Project Manager Concord, CA 94520 (925) 516-4600 Design Engineer: Carollo Engineers Tom Patten 2700 Ygnacio Valley Rd, Suite 300 Principal Walnut Creek, CA 94598 (925) 932-1710 Doug Wing Design Engineer (925)299-6733 Environmental ESA Jim O'Toole Management: 8950 Cal Center Drive, Bldg 3, Suite 300 Project Engineer Sacramento, CA 95826 (707) 795-0900 Jennifer Garrison Environmental Manager (916)564-4500 Programmer: AreSine engineering Doug McHaney 970 Executive Way Project Manager Redding, CA 96002 (530) 222-7204 Steve Stewart Lead Programmer (530)2.22-7204 Construction The Covello Group Bruce Presser Manager: 1660 Olympic Blvd, Suite 300 Principal Walnut Creek, CA 94596 (925) 933-2300 Ken Sinclair Construction Manager (925)260-2943 Ed O'Brien Field Engineer (925) 382-1246 [- -,- SUMMARY OF CONSTRUCTION STATUS • Contractor: KIEW1[T PACIFIC CONSTRUCTION Base Contract Amount (Total Project).. ......... ---S 110,329,000,00 Change Orders Executed ........ ........... ............ -- ... —.- $ 4,160,826.00 Total Contract Cost ..................... ........ ......... .... . $ 114,489,826.00 Contract Amount Earned ................................................... $ 112,712.355.00 Progress Payment for February 2009 (excludes retention) ........... $ 300,383,00 Previous Progress Payments (excludes retention)...................... $ 101,441,119.00 Estimated Percent Complete... . . ...... ....... _ .... __ ........ ..... 98.4% • Design Engineer: Carollo Engineers Authorized Budget (Total Project) ..... ............ ........ $ 4,354,075.00 Billings to Date.... .... ....... — ... ...... ...... ......... ... — $ 4,249,724.62 • Environmental Manager: ESA Authorized Budget (Total Project).. ...... ---- ...... -- .......... $ Billingsto Date ......................................... .... — ... ....... --$ 0 ArcSine engineering Authorized Budget (Total Project) .................. $ Billings to Date, .... ............... — ................. .......... ..... $ • Construction Manager: The COVELLO GROUP, Inc. 1,434,830.00 1,142,152.16 2,340,951.00 2,119,833.80 Authorized Budget (Total Project) ............... ...... ................ $ 10,231,509.00 Billings to Date .......... .............. ............... ................... —$ 8,581,427.38 3 Schedule Notice to Proceed ............................... ................................ ...... October 10, 2005 Base Contract Duration. .............. — ...... -- ............. 1278 consecutive days Original Completion Date ....... —,- ..... ...... - ............................................... April 9, 2009 Time Extension Authorized ....... -- ... -- ............. ...... ........... .......... ....... ... 67 days Revised Duration ......... -- ............... --- .... ........... .... . ..... -- 1345 consecutive days Revised Completion Date... .............. ....................... .............. ..... June 15, 2009 Weather Days (included in base duration) ..........................................................40 days Weather Days Expended (included in time expended)....................................... 82 days TimeExpended ..... ......................................... ................... 1237 Days Percent Time Expended ........... ......... ................................... ........................... . 92% 4 Construction Manager's Summary 1. Schedule The project remains on schedule for completion in June 2009. 2. Work Progress Oxidation Ditches The facility is in operation. The process test continued throughout the month. Secondary Clarifiers The facility is in operation. The process test continued throughout the month. Main Electrical Building No work was completed at this facility. Headworks Facility The facility is in operation. The process test continued throughout the month. Screw Press Building Work continued on pulling, terminating and testing of the wiring in the building. Methane Digester The digester was filled with water in preparation for testing of the facility. Insulation was installed on the exposed piping. Acid Digester Installation of the insulation on the piping and equipment at the acid digester equipment pad was completed. The acid digester was filled with water in preparation for testing of the facility Boiler Building Preliminary start-up activities and check out of the installed equipment was completed during the month Thickener Building The factory technician for the gravity belt thickener completed initial start up activities on the equipment. The vendor for the thickened waste activated sludge pumps started up those pumps. Biofilter The biofilters are in operation. Operations and Maintenance Building Completion of punch -list activities continued. Filter Support Testing continued in this structure in preparation for start up of the filters. The operational test was performed during the month. Tertiary Filters Sand was added to the filters in February. Atler the sand was installed and washed, the operational test for this facility was completed. UV Disinfection The operational test was completed during February. Recycled Water Pump Station This facility has been put into operation. Wetlands Planting This area has been planted with seeds from wetland plants. This spring, these plants should begin to grow. Site Landscaping The installation of the plants in the area south of the headworks and thickener building area continued though out the month as weather allowed. Planting of trees was continued along the west entry road. Polishing Wetlands Punchlist activities were completed in the polishing wetlands as weather allowed. Clean up work on the levee roads and trails continued throughout the month. Existing Chlorine Contact Basin The weather station installed on the building at the chlorine contact basin was put into service. The rain gauge is not correctly functioning but the other components of the station are operational 3. Contract Changes Five change orders were processed in February with a total value of $5,038,00. Three hundred seventy change orders have been executed to date with a combined value of $4,160,826.00, No change orders greater than $10,000 were executed this month. The Contractor continues to negotiate change order pricing however, they have asked that all change orders be issued unilaterally. 4. Field Orders Seven new field orders were prepared in February. Two -hundred fifty eight field orders have been prepared for the project. Of those, one hundred nineteen remain active with a total estimated value of $939,656.00. Active field orders for general changes greater than $10,000 areas follows: FO No. Description Amount 76 Concrete Hand Holes at Light Bases $15,456.00 l 88 RWPS: Truck Fill Station $11,354.00 106 CCB: Addition of Drain Vault Float and Clarification on Heat Trace Controller ( $15,000.00 110 Handrail at Oxidation Ditch 1 and 2 North Bull nose $10,000.00 111 Handrail Post Pockets at Headwork$ i $25,000.00 113 HVAC Modifications at Filter Support, Thickener & Screw Press $10.000.00 1 117 Modify Solids Handling Slab ! $22,000.00 134 CCB Wash down System $50,000.00 142 Housekeeping Pads for Pump LCP's at Filter Support { $12,615.00 145 Existing CCB Piping Modifications $301000.00 173 ) Ops Bldg: Canopy Hood Single Speed Motors $101000.00 175 Water Meter Box Modifications — Locations and Valves $11,641.00 177 Level Switches at RWPS Cans $15,000.00 182 Additional Grading at RWSB — Build Up Petals $20,000.00 183 Waste Gas Flare Modifications ( $15,000.00 200 CCB Pavinq/Gradinq Modifications $40,000.00 201 { West Access Road Sidewalk Demolition $10,000.00 202 RWPS 3W Supply Modifications $10,000.00 204 1 Entry Road Sidewalks $40,000.00 207 West Access Road — Entrance Conduit Protection $12,000.00 216 ( Life Ring Cabinets $10,000.00 221 Motor Operated Gates in Fences $10,000.00 225 East Flood Protection Berm $75,000.00 233 Headworks Barscreen Enclosure Gas Monitoring $20,000.00 237 1 W/2W Pump Station Air Gap Tank Coating $10,000.00 239 Light Pole and Enclosure Grounding $20,000.00 240 Motor Control Wiring Modifications $20,000.00 242 Screw Press: Power Supply for LCP-17SPR001 $2,500.00 248 Replacement of Rotometers damaged due to freezing $14,000.00 Total Active Field Orders a $10,000 $328,090.00 5. 'Testing Testing of the filters, filter support building and the UV facility was started during the month. 6. Anticipated Work for Next Month Strategy field-testing to confirm the operation of the control programming is scheduled to be started in the solids handling area, Functional testing of some facilities in this portion of the plant will begin in March. The boiler will be started and the hot water system used to heat the methane digester will be tested. If the system testing is successful, the methane digester will be heated to the operational range. At the screwpress building, the piping for the load out facility will continue. Much of the remaining work is electrical. Landscaping work will continue throughout the site. SUBMITTAL STATUS FIELD ORDERS Total Cost of Total February Active Active Orders Field Orders Issued 258 7 119 $939,650.00 CHANGE ORDER SUMMARY Total February Value of Change Orders Executed in February 5 $5,038.00 Value of Change Orders Executed to Date 370 $4,160,826,00 Percent to Date of Original Contract 3.77% Days Base Contract Allowance 40 Weather Related Days in January 0 Weather Related Days to Date R2 8 Received To Date February Returned Pending First Time Shop Drawing Submittals 908 2 907 1 Request for Information 1555 5 1552 3 C. M. Request for Information 270 4 267 3 FIELD ORDERS Total Cost of Total February Active Active Orders Field Orders Issued 258 7 119 $939,650.00 CHANGE ORDER SUMMARY Total February Value of Change Orders Executed in February 5 $5,038.00 Value of Change Orders Executed to Date 370 $4,160,826,00 Percent to Date of Original Contract 3.77% Days Base Contract Allowance 40 Weather Related Days in January 0 Weather Related Days to Date R2 8 ..t, * mducb m5mationneson Sludge Storage 0 Mass Electricians work on the pulling of wire to the equipment panels and instrumentation a# t�b,. �. _ . ,, u W W,, 4 w M. 10 Ellis Creek Water Recycling Facility CONTRACT CHANGE ORDER TRACKING SHEET 1 CCO # Description 1 Time extension for additional soil sampling 2 Lime treatment at Ox Ditch & Secondary Clarifiers 3 Board up Farmhouse 4 Hay Stacker Relocation 5 Terrorism Insurance and Increased Earthwork 6 Meter in Temporary Recycled Water Pipeline 7 Temporary Power for Pond 1 Aerators 8 Pavement Repair on Cypress and McDowell 9 Conduit Encasement Coloring Agent 10 Delayed Caltrans Encroachment Permit 11 Trench Cut -Off Walls 12 Horizontal Aerators Extended Warranty Testing 13 Deletion of Prime Coat under AC Pavement 14 Replace PVC Schad. 40 with EB 20 Conduit in DB 15 Delete Lakeville Highway Access 16 Contract Time Extension for Weather Days 03-04/06 17 Change Valve Types 18 Replace EMT conduits by MC cable @ O&M Bldg 19 Inverter Duty Motors at Oxidation Ditch Aerators 20 Aerated Lagoon and Pond 1 Modifications Milestone 21 Additional Striping and Loops on McDowell 22 Catch Basins Invert Changes 23 Oxidation Ditch Sump Modifications 24 Change Buried Conduits PVC GRS to PVC Sch. 40 25 Temporary Power to Existing Aerators 4 and 7 26 O&M Bldg: Ceiling & Wall Heights Rms 27 Provide Portable Generator Pads at Ponds 28 FS Bldg: Extend Conduit Stub -ups Beyond Ductbank 29 Headworks: Handrail Extension to Complete Deck 30 Pond 4 Aerator Temp Power 31 Aerated Lagoon: Reconnecting of Aerator No. 2 32 Unknown Utility at Pond 1 North Side 33 Ductbank Encasement with Reinforcing 34 Gun Safe for Storage of Bid Documents 35 S&C Pad Mounted Switch Additions 36 Permanent Power Supply for Pond 1 Aerators 37 Temporary Fire Hose 11 Amount OAO 125,OOQ.00 3,385.00 493.00 0.00 3,023.00 1,270.00 419,681.00 (47,000.00) 16.723.00 (18.600.00) 0.00 (29,700.00) (21,774.00) 40,000.00 0.00 0.00 (14,777.00) 16,466.00 0.00 13,747.00 (9,9947.00) (7.750.00) (213,038.00) 7,956.00 4,287.00 2,554.00 9,190.00 1,254.00 883.00 537.00 855.00 24,884.00 2,410.00 75,200.00 98,000.00 851,00 Time (Days) 8 m CCO # ffI Description 38 Change material for Temporary Debris Collector 39 Chemical Tank Pads @a Filter Support Bldg 40 Disconnect Aerator No. 2 & reconnect Pond 4 Aerators 41 ( Delete Steel Steps in Manholes 42 Add 4" Butterfly Valve in Acid Digester 43 Delete Pre -Action Fire System P Main Elect, Bldg 44 Headworks Influent Box Modifications 45 Transformer Pad at Restroom 46 Addition of Construction Joint at Oxidation Ditch Slabs 47 Change Conduits from PVC Rigid Steel to PVC Sch. 40 48 Reader Board & Geogrid placement (a) Cypress/McDowell 49 Plant Control System PLC Architecture 50 Grit Pump Room Sump Pump Modification 51 PLC Enclosure Size for PLCs 2, 3 and 8 52 Additional Time Switches at O&M Bldg. 53 Extension for Pond 1 Aerators Milestone Date 54 Levee Repair at Berm Existing Ponds 8 & 9 55 Operations Bldg. Maintenance Window 56 In -Plant Pump Station Wall Penetration Details 57 Aliqnment of 42" RSG tine to Headworks 58 Revision of Structural Joints at Headworks Facility 59 Pond 9 & 10 Levee Pothole 60 ( Add pipe for Future Pump Can (a) RWPS 61 Home Inspection of Farm House 62 Alignment of 42" PWE line to Gell D Transfer Structure 63 Delete Locks on Motor Operated Overhead Coiling Doors 64 Dewatering of Pond 8 and Mitigated Wetland 65 UV System Proaramminq 66 Septic Tank Removal at Farm House 67 Changes to Slide and Sluice Gates 68 PLC System Material for C Street Pump Station 69 PLC - 10 Analog Input Module 70 Change Storm Drain Pipe from RCP to CHDPE 71 Deletion of CMU Coating on non -occupied structures 72 Existing Utilities at West Access Road Entrance 73 Change Handrail for Polishing Wetlands Structures 74 Change SDR for HDPE Pipe Lines 75 Addition of waterstop in wall ( Filter Support Bldg. 76 Delete waterstop & starter walls @ HW, RAS PS, UV 77 Re -Power Pond Aerators, Reconnect Aerated Lagoon 78 Contract Time extension for Weather Days 10/2006 12 Time Amount (Days) (36,150.00} 4,425.00 607.00 (19.092.00) 1,189.00 (19,24Z00) 3,000.00 9,498.00 23,505.00 (21,912.00) 6,000.00 (6.118.00) 1,326.00 5,446.00 2,722.00 0.00 289,279.00 1,022.00 2,807.00 4,208.00 5,628.00 1,400.00 6,316.00 746.00 8,171.00 (383.00) 3,488.00 2,777.00 739.00 11,177.00 14,915.00 } 1,873.00 (72,:39&00) (2,538.00) 8,543.00 6,965.00 (52,415,00) 1,330.00 (4,206.00) 3,718.00 0.00 1 CCO # ( Description 79 Deletion of waterstop and starter walls at Tertiary Filters 80 Add waterstop at Grit Pump Area of Headworks Structure 81 Fuel Tank Removal at Farmhouse 82 Revised Anchorage for Oxidation Ditch Aerators 83 ( Deletion of Integrated System Shop Testing (ISST) 84 Additional Dowels at Maintenance Bldg. 85 Replace Fuses at MCC 3A after PG&E power spike 86 Remove and replace disconnect switch (? Aerated Lagoon 87 Lower Invert Elevation for 42" RSG Line 88 ( Addition of Roof Hatch (a? Main Electrical Bldg. 89 Filter Support Bldg: NG Connections and Valvinq 90 Chain Link Fence addition A Farmhouse 91 Repair Irrigation Lines @ Kaiser 92 Demo of Spillway at Pond 10 93 Curb and Grading (ci) Filter Support Bldg 94 Irrigation System: Concrete Valve Boxes 95 Contract time extension for Weather Days 11106 96 I Mitigation Wetlands Drain 97 Additional vinyl sheets for Levee Repair (a? berm Pond 8 & 9 98 Shoring @ Naval Trail 99 Extra excavation a(), W Access Rd. for 12" 1W line 100 Replace SBS line (cD Chlorine Contact Basin 101 Brush clearing at Farm House 102 Relocate standby Generator (o) CCB 103 Drywall Furring () Elect Rm #2 in O&M Bldg. 104 Equipment for MCC -3 retrofit 105 ( Perimeter lighting switching (a) Main Elec. Bldg. 106 Wiring for Time -Off Relay () Wetlands Elec Bldg. 107 Changes to SCADA interface Boiler & PLC 3 108 Disposal of existing MCC 3 transformer 109 Contract time extension for Weather Days 12106 110 Tree removal (a,) W Access Rd. 111 Deepening Pull Boxes (@ Ox Ditch MCC Bldg. 112 Rebar modification (a) Wetlands Pump St Deck Beam 113 Electrical Equipment Pads 114 Delete Catch Basins at W Access Rd. 115 Naval Bldg Lookout Area 116 I Changes to TWE and PWE lines 117 Polishing Wetlands FSS: Add Hand Switch 118 Engineering of Anchorage (a) Oxidation Ditch Aerators 119 Replace Oxygen Probes (a) Aerated Lagoon/Pond 1 13 Amount (1,384.00) 6,167.00 2,972.00 40,941.00 0.00 914.00 1,706.00 2,919.00 18,726.00 3,195.00 1,361.00 725.00 1,186.00 12,109.00 0.00 2,393.00 0.00 4,370.00 5,498.00 21,271.00 8,008.00 5,936.00 5,209.00 2,005.00 1,630.00 25,360.00 1,795.00 2,282.00 3,549.00 2,141.00 0.00 1,41.00 11,540.00 2,187.00 9,018.00 1,746.00 3,000.00 0.00 3,444.00 (20,089.00) 13,411.00 Time (Days) 5 7 14 Time j CCO # Description Amount (Days) ! 120 Change Piping Material for Deionized Water Service 0.00 I 121 Filter Support Bldg: Relocation of 1W Line 4,568.00 122 Security Lighting at Farmhouse 1,200.00 123 Disposal of Asbestos Containing Pipe 2,087.00 124 tt I Investigation and Disposal of FAA Building 20,512.00 125 Conduit addition @ Boiler Bldg. 15,780.00 126 O&M Bldg: Exhaust fans power supply & controls 34,440.00 127 Addition of Disconnect Switches @ Headworks 25,143.00 128 { 1 Level Transmitter (Headworks addition 23,058.00 129 Contract Time extension Weather Days 01-02/07 7 130 Subgrade Improve & Pipe Encasement @ W Access Rd. 12,128.00 131 Additional Conduit for Fuel Leak Detection 2,714.00 f 132 HVAC Enclosure Modifications @ Ops Bldg, 8,014.00 133 Wiring of Spare I/Os 45,713.00 134 PLC Enclosure Size for PLC 5 7,823.00 135 Partial Payment for PLC Enclosures 0.00 136 Trench Backfill with Native Material (72,000,00) 137 UV Blda Top Slab Modifications 14,000.00 I 138 Ops Bldg: HVAC Electrical & Mechanical Modifications 2,854.00 139 24" Pumped Storm Drain Line Coverage 30,000.00 j 140 Metal Siding (a') Main Electrical Bldg. ( 5,071.00 141 Contract Time Extension for Weather Days April 2007 ( 1 142 Ops: Relocate HVAC duct transition (a) Locker Rm Ceiling 878.00 143 Use of Native Material for backfill @ North & Middle Cluster ( {80,000.00) 144 {{ i Recycled Water Storage Basin Size Increase I 220,867.00 145 Outlet conduit replacement P Existing CCB 1,260.00 146 Modify Rebar Expansion Joints (a) Thickener Bldg 1,610.00 147 Modify Grating Seat (a) Headworks Beam B-13 1,737.00 , 148 ( Added Space Heater for PLC 8 RIO 1 - 1,803.00 149 ( Additional G2 Light Fixture @ Ops Bldg Lobby 2,013.00 150 Connection Grounding Bldg rebar (a) MCC HW Bldg. 974.00 151 Relocate supply line fire riser @ maintenance Bldg. 3,027.00 152 Pipe material for 36" mixed liquor line A 2ndary Clarifiers 14,271.00 153 Modifications HVAC Pads 9,562.00 154 Mod per PG&E Requiremnts to Main Power Supply 19,886.00 155 Addition of Wali Sleeves at Thickener Building I 847.00 156 Reduce Deck Slab Openings @ Wetlands Pump Station 782.00 157 Wali Supports for Pony Wall at Laboratory 2,162.00 158 Concrete Encase HCS pipeline @ Headworks Structure 2,393.00 159 Convert Conference Rm into 2 Offices @ Dos Bldg. 8,351.00 160 Concrete Backfill around Screw Press Equipment Trench E 1,588.00 14 Time CCO # Description AmountiDays) I 161 Expansion Joint Rebar (a) Headworks Grid Line 10 1,151.00 162 Standby Generator Connection @ Wetlands PS 13,527.00 163 Deletion of Rotameters @ Tertiary Filters (1,0"74.00) j 164 Blockouts for Ox Ditch Aerator Anchorage 1,022.00 j 165 Concrete Encase SD pipe under HWE pipeline @ HW 1,657.00 166 Temporary Power for Transformer (a) Aerated Lagoon 28,343.00 167 Rebar @ Headworks Manual Bar Screen Embed 756.00 168 Subgrade Improvement for Wetlands PS Apron Slab 11,799.00 169 Screw Press Bldg Skylight Size Change 3,465.00 170 Additional 1/0 from Power Panel to PLC -9 2,887.00 171 I Standby pump (a) existing CCB during work @ Pond 10 44,000.00 j I 172 Billing for Potable Water Usage on site through 414107 1,552.00 173 Upgrade starters for Ox Ditch Aerator Motors 78,373.00 174 ii I Blind flanges for future effluent line @ Aerated Lagoon 11,709.00 I 175 Remove rebar @ Ox Ditch Aerator Motor Block-outs 3,000.00 176 Modification of controls for Tertiary Effluent Bypass Valves (3,075.00) 177 I Communication between PLC & Thickener PLC -8 2,032.00 178 Automated 1W Valve @ Recycled Water Storage Basin 46,267.00 179 Modification to HW Bar Screen Channels 6,130.00 180 Relocate Fire Pump Can @ RWPS 4,613.00 181 Add Effluent Conductivity Probe (a? JB No. 2 1 9,680.00 182 Revise DB Routing @ Ferrous Chloride Area Ij 2,463.00 183 Ventilation Alarms @ Boiler Bldg & Thickener Bldg j 20,526.00 1 184 Anti Graffiti Coating @ O&M Bldg and Sound Wall I 28,736.00 185 Deletion of Louvers @ HW Bar Screen Enclosures ( (1.374.00) 186 Deletion of Combination Smoke Fire Dampers (18,005,00) I 187 Fire Rating Janitor Closet Door @ Ops 1,841.00 188 Brush clearing @ Farm House fire season 2007 3,186.00 I 189 ( Ops: CMU alignment & wall cap @ HVAC enclosure 1,826.00 1 190 Ops: addition acoustical ceiling @ electrical rm #1 3,125.00 191 Ops: framing details for Lobby 2,163.00 192 RWPS: modified floor drainage 15,107.00 1 193 Ops: beam seats in CMU wall pockets 10,067.00 194 I C Recycled Water Storage Basin Berm Modifications 195 Double Containment System Modifications (2.595.00) 90,172.00 1 I 196 Site Security Lighting Estimation Cost 10,364.00 { 197 Grading aa) Mitigation Wetlands & RWSB 27,012.00 1 198 PG&E power connection @ W Access Rd. 55,335.00 199 UV Disinfection Light Pole Mounting Detail 7,027.00 200 Ox Ditch Light Pole Mounting Detail 8,852.00 I 201 Existing CCB: power to New Chemical Metering Pump 8,588.00 1 15 9 Times CCO # Description Amount (Day 202 Screw Press grating @ Flocculation Tank Opening 1,969.00 203 Anchorage of Diffuser Pipe Ponds 9 & 10 32,659.00 204 Acid Digester changed detail wail penetrations 4,286.00 I 205 Existing LPN panel in chemical bldg. 2,576.00 206 Revised Details @ RWSB 20,881 A0 207 ( Ops: Deletion of Closet in Control Room (932.00) 208 Ultrasonic level sensor mount @ Headworks 1,208.00 209 Mitigation Wetlands Drain — Permanent installation 75,048.00 , 210 Ops Bldg: Plumbing Dwas 29,571.00 211 Ops: Deletion of decking @ Mechanical Chases 1,719.00 , 1,696.00 212 Headworks: channel floor rebar modification 213 Ops: Furring Men's Restroom Urinal Wall 740.00 214 informational Kiosks: Addition of 2" FVC 40 Pipe Sleeve 2,560.00 215 Screw Press: Modifications to Understab Piping 2,607.00 216 Below Grading Coatings 72,507.00 217 Aerated Lagoon: Unknow utility @ 20" URW Alignment 5,225.00 218 Ops Bldg: Additional Window Clips 3,194.00 219 Silt Fence Repair 1,209.00 220 Ops Bldg: control rm. Backing & wood blocking 2,185.00 221 Ops Bldg: Modifying Welding Studs to 118" Tubing 5,293.00 222 Pond 10 Apron Slab: Over Ex, Fabric, and Rock 3,870.00 223 Addition of Solenoid Valve @ Recycled Water Surge Tank 5,095.00 , 224 Thickening Walls @ Ox Ditch Aerator Shafts 11,286.00 225 Relocate Receptacles @ Biofilter Mechanical Pad 3,286.00 226 Equipment Pad Modifications @ Screw Press 5,130.00 , 227 Footing Elevation @ Filter Support Bldg. Tank Farm 2,098.00 228 Relocation of Cell D Transfer Structure 5,162.00 229 Pipe Elevations & Drainage Swale @ Polishing Wetlands 1,938.00 230 Farm House: Plywood Cover @ Back Entry 756.00 231 Methane Digester construction ioint location & piping 1,057.00 232 Ops Bldg: Icemaker Legs 893.00 j 233 1 Acid Digester. Overflow Piping Modifications 1,727.00 234 West Cluster: Sitework & Grading Change 277.00 235 Ops Bldg: Future access control conduit stub -outs 1,720.00 236 Ops Bldg: Interior lights & furring strips 2,292.00 , 237 Potholing & Excavation existing utilities @ CCB 42,606.00 1 238 Replace Farmhouse Roof 34,194.00 239 SCADA: TWAS sump level set points 1,682.00 240 CCB: Relocation of Ammonia Tank 17,176.00 , 241 Add wire way in PLC 6 @ Existing Chemical Storage Bldg. 1,775.00 ! 2,690.00 ( 242 Replace Landscaping on Kaiser Property 16 9 17 Time CCQ# Description / Annamek (Days) 243 Electrical &«nd/fiva§nno@UVBldg. 47.188.00 244 Heodwurku: Reber Detail QChannel Wall Ends 1.626.00 245 Reber @ Screw Press Bldg. Slab Extension 1,625'00 240 Tertiary Fi|tvc12Inch Inlet Line 17,248.00 247 Ops: Modifications 10Fume Hoods (490,00) 248 Ops: Addition ofCompressed Air @Laboratory 22.84100 249 Ops: Training Room Modifications 8,494.00 250 Emergency Repair Kit Deletion | | (_567,00) 251 Increase Cover Over 14inch Foul Air Line 1.872,00 252 Headworka:Epoxy Coat Rebar @ Block-outs 20,578.00 253 Relocation ofMezzanine Column P Screw Press 3,225.00 254 Additional Reber 0Oxidation Ditch 1,348.00 255 Pipe Class Acid Gas & Methane Gas Pipe �'6,089.08) 256 Modifications b)the Potable Water System 105,858.00 257 Thickening Bldg piping modifications 764.00 258 Catch Basin grating modification @VVAccess Rd. culvert 4.950.00 258 HemdvmorkoFRP grating support @ Gate location 2,21880 260 Digested Sludge Storage Tank: Piping Modifications 4,828.00 201 Modifications tuAnalyzer Enclosures 9,315.00 262 Additional Conduits & Wires Miscellaneous Areas 41'820.00 283 Planting modification @ West Access Rd. � | 2,328.00 � 284 Install Clapper Rail Trail Gate 2,687.08 205 Amphitheater seating next toPolishing Wetland Cell D 29,577�00 � � 266 Ferrous Chloride- revised electrical & pump pad 24,552.00 207 Chip Down Top ofWall @ Filter Support 3.411.00 268 Conduits for Future Mixer @CCB 11,320.00 | 289 0Wodifinotionnfor Interfacing between PLC 6and PLC 1i 6,800.00 | | 270 8oadwvrknDeck Slab Falsewmrk | / 28,026.80 | | 271 Oevmab*hnqofPond 8 20157l0 | | 272 Pressure Gauges @ Wetlands Pump Station 4`110.00 | | 273 Irrigation Changes (d) Point of Connection / / 24,050I0 | \ 274 Filter Support: 4" chemical drain elevation 02.00 | | 275 Unknown Utilities (a)Site Entrance 4,205J00 | 270 Mitigated Wetland Planting (3130900) 277 Changes & Additions toJVVSystem (a)OxDitches 34,716.00 | 278 Garbage Bin Structure 23^64480 | | 279 Relocate Voo|imMaterials (a) CCB 788.00 | | 280 Wetlands PSPortable Eyewash Station 5,217.80 281 TemPoraryIrrigation Connection 1u5cho||enbarqer | 2.255.00 | | 282 Partial Deletion ofPlanting (a)Polishing Wetlands | | (18,808.00) | | 283 Change NEMA Rating for Pull Boxes @OxDitches � | (18726.00) 17 CCO # Description Amount 284 Delete Trail Materia€ W Polishing Wetland Cell D (27.165.00) 285 Equipment Pad Modifications @ CCB Bldg. 26,412.00 286 Parapet Detail @ Ops Bldg Lobby 18,746.00 287 Relocate Potable Water Riser @ 1W Pump Station 3,299.00 288 Dewatering Pond 7 for TWIS 14,419.00 289 Additional work for Farmhouse Roof Replacement 41,819.00 290 Material for Clay Liner in RWSB 13,820.00 291 Ops Bldg ihr Fire Rating 40,885.00 292 Maintenance Bldg: 2hr Fire Rating 1,282.00 293 ff i Relocate Tie -€n to Potable Water Sys @ Cypress Dr. 8,042.00 294 Changes to Gates & Operators (@ W Access Rd. (8,884.00) 295 Ellis Creek Clean Up 8,395.00 296 Analog Input Module for PLC 11 2,766.00 297 Addition of the Polishing Wetlands Pump Station 415,000.00 298 Natural Gas Connection & Metering Pad 18,435.00 299 Additional Digital Input Points PLC 9 2,335.00 300 Weather Monitoring Station 24,976.00 301 Modifications for future Polishing Wetlands Pump Station 16,899.00 302 Addition of Geofabric (p) Access Rd. Ponds 8,740.00 303 Outlet Cutouts in Backspiash @ Ops Laboratory 1,908.00 304 Ops Bldg: Exhaust Fan Drainlines 7,662.00 305 PVC pipe for Plant Drain Piping (4,357.00) 306 Drainage Swale @ W Access Rd. (1,500.00) 307 ( UV Stair Grating Changes (3,111.00) 308 UV Channel Biockouts for Wireways (6,849.00) 309 CCB: Welding of 42" Pipe Connections 27,142.00 310 Trail Connection @ Schollenberger Park 13,167.00 311 ii Waste Gas Flare Pedestal 2,366.00 312 I Relocation of cabinets in Ops Bldg. 753.00 313 Support for folding Partition in Ops Bldg. 830.00 314 Deepen Fuel Sump @ Generator 3,855.00 315 Operation Bldg: Fire Sprinkler Riser 25,728.00 316 Glass Lined Ductile Iron Pipe 97,613,00 317 Wetlands PS Mixer Mounting Bracket 1,798.00 318 Uninterruptible Power Supply @ Ops Bldg. 24,754.00 319 Clarifier 1 & 2 Light Post Mounting 3,060.00 320 Transformer Relocation {a) Existing CCB 6,187.00 321 Ops Bldg: Mudroom Skylight Framing 5,192.00 322 Wetlands Pump Station interim Milestone 0.00 323 Analyzer Enclosure (a} Outfall Structure 11,080.00 324 Additional Grating (5) Biofi€ter Damper Boxes 2,747.00 18 Time (Days) Time CCO # Description Amount (Days) 325 Additional Valves for Hydronic System ( 762.00 326 Modifications @ Flow Control Structure C-2 (2,591.00) 327 Change Manhole & Catch Basin Elevation @ South Cluster 1,923.00 328 Modifications to the Existing Outfall Structure 12,254,00 329 Anti Graffiti Coating @ Garbage Bin Structure 2,389.00 330 Instrumentation and Control Modifications @ Existing Plant 58,658,00 , 331 Miscellaneous Extra Work @ Junction Box No. 2 49,264.00 I {1 332 Miscellaneous Extra Work @ Existing CCB 12,655.00 , 1 333 Paint Flashings and install Spark Arrestor (a) Farmhouse 2,860.00 G 334 Temperature Detection for Recycled Water Pumps 19,598.00 335 Raise Top of Electrical Pull Box @ Headworks 3,351.00 f 336 Modifications to Biosolids Load -out @ Screw Press Bldg. 266,077.00 337 Rerouting of Electrical Conduits @ Headworks Deck 46,510.00 338 Miscellaneous Instrumentation Modifications 5,366.00 339 Reverse Service Generator Plug 4,699,00 , 340 Submersible Sump Pump Control Panels 2,445.00 341 Flow Meter Transmitters @ WPS 1,597.00 342 Additional Fence & Gate @ Existing Farmhouse 5.289.00 1 343 Install pressure gauge @ Tertiary Filter Hypochlorite panel 1,684.00 344 Widen Sidewalk @ Filter Support Bldg. 821.00 345 Anti Graffiti Coating @ W Access Rd. Public Restroom 3,920.00 346 Screw Press Parapet Wall Height 2,658.00 347 Handrail installation @ Ox Ditch Weir Gates 7,798,00 348 Bond and Insurance Over -Billing (66,172.001 . 349 Drains for AC Unit & Backflow Preventers @ Ops Bldg 2,185.00 350 Delete wires @ Headworks & add wires @ PW FSS 0,00 351 Added Sample & Drain Lines @ JB 2 4,12700 352 Additional Blackout Shades @ Ops Bldg. 885.00 353 Relocation of Drain Lines @ Biosolids Load -out Slab 10,201.00 354 Deletetion of Vinyl Coating- chemical pump pad @ GCB (3,481.00) 355 Ferrous Chloride Line Encasement under Equip Pad 2,608.00 , 356 Power Supply to Current Tranducers @ Ox Ditches 3.999.00 357 Level Switches @ RWPS 5,081.00 358 Contract Milestones O&M Bldg Occupancy 1 SCADA Readiness 0.00 359 22" Foul Air Pipe Encasement 11,291.00 , 360 Shoring @ JB 2 48,500.00 361 Dewatering @ JB 2 28,000.00 362 Analyzer Changes & Minor Changes to Instrument Index 23,495.00 363 Sprinkler Repair at West Entrance Road 1,585.00 364 Modification of Light Pole Bases @ Tertiary Filters 693.00 365 Stair Landing @ Tertiary Pump Station ( 1,001.00 , 19 20 I Time CCO # Description Amount (Days) 366 Acid Equipment Pad: Ferroud Chloride Line 1,207.00 367 RWPS Hydropneumaflc Tank Mechanical 1,543.00 i 2,448.00 368 Change Diffuser Ph)e Supports @ UV 369 Fire Alram System Modifications (2,905.00) 370 Site Keying of Permanent Cores 2,745,00 CHANGE ORDER TOTAL: 4,160,826,00 67 Contract Amount: 110,329,000.00 1278 Percent Change Orders: 3.77% Totals: 114,489,826.00 1345 Total Additive Change Orders 5,152,460 00 Percentage of Contract Amount 4.67% Total Credit Change Orders (990.634.00) Percentage of Contract Amount 0.90% Contract Substantial Completion Date 4/9109 Current Substantial Completion Date 6/15/09 20 0 CK Ng Gt O Ct O Ni LL fly I Elm a tor a II Ny 2r 2 0 z 16 It K4 Wk iu 4�j O ur nz CS CS w u1 4�j