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Home My WebLink AboutItem 4.08 NVHeathorn HVAC CO CITY CLERK AGENDA STATEMENT CITY COUNCIL MEETING DATE: May 6, 2003 SUBJECT: Civic Center HVAC (Heating, Venting, and Air Conditioning) Replacement Project, Contract 02-14 - Change Orders Report Prepared by: Lee S. Thompson, Public ~Vorks Director ATTACHMENTS: Change Orders 4, 12, 13, and 15, which are within the funds budgeted in this Capital Improvement Project RECOMMENDATION: ~. r-~pprove Change Orders 4, 12, 13, and 15 for Contract 02-14 FINANCIAL STA ENT: The construction budget for this project is $584,753.00 Original contract amount: $271,132.00 Total of change orders approved by Staff: $ 22,729.70 Total of Change Orders 4, 12, 13, and 15: $ 22,427.00 Revised total contract amount: $316,288.70 DESCRIPTION: The City Council awarded Contract 02-14, Civic Center HVAC Replacement to N.V. Heathorn on November 5, 2002, and work began in late December. The rooftop units were set in January. A number of unforeseen conditions and changes to the plans have occurred during the course of the work. The Municipal Code authorizes the City Manager to approve up to $25,000 in change orders for a single project of this size. Following is a description of the four that would require City Council approval. CO 4. Labor to Remove and Re-Install Components to Reduce Weight of Units for Helicopter Lift, $5,890: The rooftop units weighed more than the labeled weight on the units, and the helicopter was not able to lift them. The contractor had to remove and reinstall components. This also includes additional time for the helicopter and crew. The weight problem occurred with both the existing and the new units. CO 12. Duct Penetration Through Wails, $3~334. This is to comply with a building code requirement related to building type; all walls in the Civic Center are considered to be rated walls, and duct penetrations are required to be sleeved. This information was not clear on the original building plans and was therefore not included in the bid plans and specifications. COPIES TO: N. V. Heathorn ITEMNO. ~.~ g:h~iscproj~hvac\agenda stmt cco version 2 CO 13. Extension of Outside Air Intake for Unit # AC-9, $5,069. Due in part to an anomaly in the roof curbing and the unit being mounted somewhat higher than previously, the exhaust for Unit #AC10 is too close to the intake for Unit #AC9. In order to meet applicable codes, the air intake for Unit #AC9 needs to be extended above the exhaust for #AC10 so that flue gases are not drawn into the unit. CO 15. Troubleshooting Zoning and Ducting Anomalies, Time and Materials, $8,134. In the process of setting up the energy management system, it was discovered that the "as built" drawings for the Civic Center are not accurate and some of the ducting from the original building construction does not, in fact, serve the zones shown on the project plans. CCO #15 includes labor hours to troubleshoot, identify, and rewire zones as necessary to correct the problem areas. The project is substantially complete, with only completion of change order work remaining. Staff recommends that the City Council approve Change Orders 4, 12, 13 and 15, which are within the funds budgeted in this Capital Improvement Project. Page 2 CONTRACT CHANGE ORDER NO. 4 DATE: March 26, 2003 PAGE: 1 of 1 PROJECT/ROAD: Civic Center HVAC Renovation CONTRACT NO: 02-14 TO: N.V. Heathorn nc., 1155 Beecher St., San Leandro, CA 94577 You are hereby directed to make the herein described changes from the plans and specifications or do the following described work not included in the plans and specifications on this contract. Please note that this chan,qe order is not effective until approved by the Public Works Director. This change order is requested by the Contractor. Mutizone Weight A.C. ¢4, #7 and #8 (NVH log #10-03R3) Labor required to remove compressors $5,890.00 from existing 'units to reduce weight for helicopter lift. Labor to remove and re-install condenser fans, supply fans motors and exterior panels to reduce weight for helicopter lift. ESTIMATED COST INCREASE: $5,890.00 BY REASON OF THIS CHANGE ORDER, THE TIME OF COMPLETION WILL BE ADJUSTED. 0 WORKING DAYS. SU~M ,TTED BY: . ~AP~ROVED B)'; APPROVED BY: '¢ Gi~¢er¢~ssell )~ Dat~ '~e S. ~hbmpso~ ~ Date Richard C. Ambrose Date %,....~dministrative 'Analyst Public Wer~s'~rector City Manager We, the undersigned contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide alt equipment, furnish all materials, except as may othe~ise be noted above, and pedorm all se~ices necessaw for the work above specified, and will accept as full payment therefor the prices shown above. Accepted: Date: April 23, 2003 Contractor: N. V. Heathom, Inc. If the Contractor ~oes not si~n acceptance of this orOer, his/her attention is ~irecteO to the requirements of tho specifications as to procee~in~ with the ordered work an~ filin~ a written protest w~thin the time therein spedfie~. : EXHIBIT "A, CHANGE ORDER FORM DATE: 4/23/2003 PROJECT NAME: Civic Center HVAC Replacement ClP #: 93935 coNTRACT # 02-14 PCT. COMPLETED 97 CONTRACTOR NV Heathom APPROVED BUDGET AMT. $ 584,753.00 CONTRACT AMT. $ 271,132.00 CHANGE ORDER #1 $ 591,00 CHANGE ORDER #2 $ 7,485.00 CHANGE ORDER #3 $ 1,032.70 CHANGE ORDER ~ $ 5,890.00 CHANGE ORDER #5 $ 3,928.00 CHANGE ORDER ~6 $ 6,872.00 CHANGE ORDER #7 not used CHANGE ORDER #8 $ 3,097.00 CHANGE ORDER #9 not used CHANGE ORDER #10 $ (4,963.00) CHANGE ORDER #11 $ 2,477.00 CHANGE ORDER #12 CHANGE ORDER #13 CHANGE ORDER #14 $ 2,2'10.00 CHANGE ORDER #15 TOTAL OF ALL CURRENT AND PRIOR CHANGE ORDERS: $ 28,619.70 I ADJUSTED CONTRACT AMOUNT: $ 299,751.70 I PROGRESS PAYMENTS MADE . . PAYMENT #1 $ 115,044.00 PAYMENT #2 $ 146,766.20 PAYMENT #3 $ PAYMENT ~ . $ PAYMENT #5 $ PAYMENT #6 $ PAYMENT #7 $ PAYMENT #8 $ PAYMENT #9 $ PAYMENT #10 ~ $ PAYMENT #11 $ PAYMENT #12 $ PAYMENT #13 I $ PAYMENT #14 $ PAYMENT #15 $ - TOTAL PROGRESS PAYMENTS $ 261,810120 REMAINING BALANCE ON CONTRACT: $ 37,941.50 RECOMMENDATION: APPROVED/~_. APPROVED APPROVED DENIED DENIED DENIED SIGNATURE: //~X¢¢"~~'' ~¢d/p e ~n/~ Asst. City Mayor Dept Head Msnager, CITY OF DUBLIN ~. 400 civic PLAZA, DUBLIN, CALIFORNIA 94568 & (925) 833-6630 & (925) 829-9248 FAX CONTRACT CHANGE ORDER NO. /2, DATE: February 6, 2003 PAGE: 1 of 1 PROJECT/ROAD: Civic Center HVAC Renovation CONTRACT NO: 02-'14 TO: N.V. Heathom Inc. 1'155 Beecher St. San Leandro CA 94577 You are hereby directed to make the herein described changes from the plans and specifications or do the following described work not included in the plans and specifications on this contract. Please note that this chanqe order is not effective until approved bv the Public Works Director. This change order is requested by the Contractor. Duct penetration through walls per HMA sketch dated 1-30-03 (NVH Log #089~03) Labor and $3334.00 material required to fabricate and install wall sleeve and retaining angles at wall penetrations per inspector requirements and engineer's sketch. ESTIMATED COST INCREASE: $3334.00 BY REASON OF THIS CHANGE ORDER, THE TIME OF COMPLETION WILL BE ADJUSTED 4 WORKING DAYS. APPROVED BY: '~-..~ ~:~n~q~L.~l~ssell / Dat(~ " Date Richard C. Ambrose Date '~AdCnini'~trative Analyst u ic er4~'Direc(or City Manager We, the undersigned contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide all equipment, furnish ali materials, except as may othe~ise be noted above, and perform alt se~i~s necessaw for the work above specified, and will accept as full payment therefor the prices shown above. If the Contract--s not sign acceptance of this order, his/her attention is directed to the requirements of the specifications Cs to proceeding with the ordered work and filing a written protest within the time therein specified. " EXHI'BIT "A" CHANGE ORDER FORM DATE: 4/23/2003 PROJECT NAME: Civic Center HVAC Replacement CIP #: 93935 CONTRACT # 02-14 PCT. COMPLETED 97 CONTRACTOR NV Heathom APPROVED BUDGET AMT. $ 584,753.00 CONTRACT AMT. $ 271,132.00 CHANGE ORDER #1 $ 591.00 CHANGE ORDER #2 $ .7,485.00 CHANGE ORDER #3 $ 1,032.70 CHANGE ORDER #4 $ 5,890.00 CHANGE ORDER #5 $ 3,928.00 CHANGE ORDER #6 $ 6,872.00 !CHANGE ORDER #7 not used CHANGE ORDER #8 $ 3,097.00 CHANGE ORDER #9 not used CHANGE ORDER #10 $ (4,963.00) CHANGE ORDER #11 $ 2,477.00 CHANGE ORDER #12 $ 3,334.00 CHANGE ORDER #13 CHANGE ORDER #14 $ 2,210.00 CHANGE ORDER #15 TOTAL OF ALL CURRENT AND PRIOR CHANGE ORDERS: $ 31,953.70 ADJUSTED CONTRACT AMOUNT: $ 303,085.70 PROGRESS PAYMENTS I~ADE PAYMENT #1 $ 115,044.00 PAYMENT #2 $ 146,766-20 PAYMENT #3 $ - PAYMENT #4 $ - PAYMENT #5 $ - PAYMENT #6 $ - PAYMENT #7 $ - PAYMENT #8 $ - PAYMENT #9 $ - PAYMENT #10 $ - PAYMENT #11 $ - PAYMENT #12 $ - 'PAYMENT #13 $ - PAYMENT #14 $ - PAYMENT #15 $ - TOTAL PROGRESS PAYMENTS $ 261,810.20 REMAINING BALANCE ON CONTRACT: $ 41,275.50 RECOMMENDATION: APPROVED ~ APPROVED APPROVED D~~~i~.~.~ I DENtED i DENIED SIGNATURE: S i Asst. City Mayor Dept Head Mana,qer CONTRACT CHANGE ORDER NO. 13 DATE: March 26, 2003 PAGE: 1 of 1 PROJECT/ROAD: Civic Center HVAC Renovation CONTRACT NO: 02-14 TO: N.V. Heathorn, Inc., 1155 Beecher St., San Leandro, CA 94577 You are hereby directed to make the herein described changes from the plans and specifications or do the following described work not included in the plans and specifications on this contract. Please note that this chanqe order is not effective until approved by the Public Works Director. This change order is requested by the Contractor. A. C. #9 Outside Air Intake Extension (NVH Log # 141-03R1) Labor and material to fabricate and $5,069.00 install outside air intake extension duct and supports for A.C. #9 per Henry Meyer and Associates drawing dated 2-18-03 revised using painted galvanized metal instead of aluminum. ESTIMATED COST INCREASE: $5,069.00 BY REASON OF THIS CHANGE ORDER, THE TIME OF COMPLETION WILL BE ADJUSTED 7 WORKING DAYS. Gin~¢i~ R el .~ Date , Le~/S. ~mp~on ' Date Richard C. Ambrose Date ~d-ministrative Analyst Public~CCerk~ Director City Manager We, the undersigned contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide all equipment, furnish all materials, except as may otherwise be noted above, and perform all services necessary for the work above specified, and will accept as full payment therefor the prices shown above. Accepted: Date: 4/22/03 // Contractor: N. V. Heathorn, Inc. SignedBy~..~-.-~~/ / Title: VICE PRESIDENT J DAVID WENNER If the Contractor does not sign acceptance of this order, his/her attention is directed to the requirements of the specifications as to proceeding with the ordered work and filing a written protest within the time therein.specified. EXHIBIT "A" CHANGE ORDER FORM ~DATE: 4/23/2003 PROJECT NAME: Civic Center HVAC Replacement CIP #: 93935 CONTRACT # 02-14 PCT. COMPLETED 97 CONTRACTOR NV Heathom APPROVED BUDGET AMT. $ 584,753.00 CONTRACT AMT. $ 271,132.00 CHANGE ORDER #1 $ 591.00 CHANGE ORDER #2 $ 7,485.00 'CHANGE ORDER #3 $ 1,032.70 CHANGE ORDER #.4 $ 5,890.00 CHANGE ORDER #5 $ 3,928.00 CHANGE ORDER #6 $ 6,872.00 CHANGE ORDER #7 not used CHANGE ORDER #8 $ 3,097.00 CHANGE ORDER #9 not used CHANGE ORDER #10 $ (4,963.00) CHANGE ORDER #11 $ 2,477.00 ~CHANGE ORDER #12 $ 3,334.00 CHANGE ORDER #13 $ 5,069.00 CHANGE ORDER #14 $ 2,210.00 CHANGE ORDER #15 ~ TOTAL OF ALL CURRENT AND PRIOR CHANGE ORDERS: $ 37,022.70 ~ ADJUSTED CONTRACT AMOUNT: $ 308,154.70 PROGRESS PAYMENTS MADE PAYMENT #1 $ 115,044.00 PAYMENT #2 $ 146,766.20 i PAYMENT #3 $ - PAYMENT ~4 $ ' PAYMENT #5 $ - PAYMENT #-6 $ PAYMENT #7 $ PAYMENT #8 $ PAYMENT #9 I $ PAYMENT #10 $ PAYMENT #11 $ ~PAYMENT #12 $ i PAYMENT #13 $ - ' PAYMENT #14 $ ' ' ~AYMENT #15 $ ' TOTAL pROGRESS PAYMENTS $ 261,810.20 REMAINING BALANCE ON CONTRACT: $ 46,344.50 RECOMMENDATION: APPROVED t/:i APPROVED APPROVED DENIED DENIED DENIED SIGNATURE: ~/~ ~'/--"~' - S~"perv~s, i.~_ Asst. City Mayor Dept H~ad Manager CITY OF DUBLIN ~ loo c~wc PLAZA, DUBLIN, CALIFORNIA 94568 ~ (925) 833-6630 4. (925) 829-9248 FAX CONTRACT CHANGE ORDER NOi 15 DATE: April 22, 2003 PAGE: 1 of 1 PROJECT/ROAD: Civic Center HVAC Renovation CONTRACT NO: 02-14 TO: N.V. Heathom, Inc., 1155 Beecher St., San Leandro, CA 94577 You are hereby directed to make the herein described changes from the plans and specifications or do the following described work not included in the plans and Specifications on this contract. Please note that this change order is not effective until approved by the Public Works Director. This change order is requested by the Contractor. Labor required to trace, troubleshoot, and make corrections to controls in order to associate $8,134.00 individual thermostats to the correct zones. ESTIMATED COST INCREASE: $8,134.00 BY REASON OF THIS CHANGE ORDER, THE TIME OF COMPLETION WILL BE ADJUSTED 0 WORKING DAYS. /¢ Gin~r~ssell / D~te ' / -- L~~pso~ ' Date Richard C. Ambrose Date ~inistrative Analy~ Public ~ector City Manager We, the undersigned contractor, have given careful consideration to the change proposed and hereby agree, if this proposal is approved, that we will provide all equipment, furnish all materials, except as may othe~ise be noted above, and pedorm all se~ices necessaw for the work above specified, and will accept as full payment therefor the prices shown above. Accepted: Date: ~/~-O~ ¢ / Contractor: N. V. Heathorn, Inc. If the Contractor ~oes not si~n acceptance of this or, er, his/her attention is Oirecte~ to tho requirements of the specifications as to procee~ino w~th the or~ere~ work an~ fllin~ a written protest within the time therein spedfie~ EXHIBIT "A" CHANGE ORDER FORM DATE: 4/23/2003 PROJECT NAME: !Civic Center HVAC Replacement ClP #: 93935 CONTRACT # 02-14 PCT. COMPLETED 97 CONTRACTOR NV Heathom APPROVED BUDGET AMT. $ 584,753.00 CONTRACT AMT. $ 271,132.00 CHANGE ORDER #1 $ 591.00 CHANGE ORDER #2 $ 7,485.00 CHANGE ORDER #3 $ 1,032.70 CHANGE ORDER #4 $ 5,890.00 CHANGE ORDER #5 $ 3,928.00 CHANGE ORDER #6 ~ $ 6,872.00 CHANGE ORDER #7 not used CHANGE ORDER #8 $ 3,097.00 CHANGE ORDER #9 not used CHANGE ORDER #10 $ (4,963.00) iCHANGE ORDER #11 $ 2,477.00 iCHANGE ORDER #12 $ 3,334.00 CHANGE ORDER #13 $ 5,069.00 CHANGE ORDER #14 $ 2,210.00 CHANGE ORDER #15 $ 8,134.00 TOTAL OF ALL CURRENT AND PRIOR CHANGE ORDERS: $ 45,156.70 I ADJUSTED CONTRACT AMOUNT: $ 316,288.70 I PROGRESS PAYMENTS MADE PAYMENT #1 $ 115,044.00 PAYMENT #2 $ 146,766.20 PAYMENT #3 $ PAYMENT #-4 $ PAYMENT #5 $ PAYMENT ~ $ PAYMENT #7 $ PAYMENT #8 $ PAYMENT #9 $ PAYMENT #10 $ PAYMENT #11 $ PAYMENT #I 2 $ PAYMENT #13 $ PAYMENT #14 I $ PAYMENT #15t $ TOTAL PROGRESS PAYMENTS $ 261,810.20 I REMAINING BALANCE ON CONTRACT: $ 54,478.50 RECOMMENDATION: APPROVED '~ APPROVED APPROVED DENIED, DENIED DENIED SIGNATURE: ~i/ ~ / . '~up~(-~isin~ Asst. City Mayor Dept'Head Manager