The URL can be used to link to this page

Home My WebLink About1999-159 CONT Chg Order #10 - Carollo EngineersCAROLLO ENGINEERS, P.C. CONTRACT CHANGE ORDER NO. 10 Project No. 4411B30 OWNER: City of Ashland, Oregon PROJECT: Wastewater Treatment Plant Process Improvements SRF # 11750 CONTRACTOR: Slayden Construction, Inc. ENGINEER: Carollo Engineers, P.C. The following changes, additions to or deletions from the work described in the Contract Documents are hereby authorized: Item No. 1 2 3 4 5 6 7 8 9 Description Cost (See attachment) (dollars) RFP-24 Air & Vacuum Valve and Relief Valve Revisions for Reclaimed Water 932.00 (Effluent) and No.3 Water Piping RFP-68 V-Notch Weirs for Secondary Clarifier Nos. 1 and 2 26,706.00 RFP-72 Secondary Clarifier No. 3 Relocation -0- RFP-76 Fire Extinguisher Type and Location 2,093.00 RFP-77 Revision to Polyethylene NaOH Storage Tank (1,050.00) RFP-81 Anchor Bolts (Modification of Typical Detail S310) -0- RFP-83 Masonry Reinforcing & Anchor Bolt Revisions, RAS/WAS Pump Station -0- RFP-86 Pig Launcher and Valves -0- RFP-91 Revise Safety Shower at Sodium Hydroxide Tank 2,177.00 Time (days) -0- -0- -0- -0- -0- -0- -0- -0- -0- Original Contract Amount Net Change by Previous Change Orders Contract Amount prior to this Change Order Net Change due to this Change Order New Contract Amount $12,374,000.00 248,818.00 12,622,818.00 30,858.00 $12,653,676.00 The Contract Time is (unchanged) (,r~re~M) (~-~res~",~) by -0- calender days. The Contract completion date will be January 14, 2001. The amounts indicated above shall be compensation in full for the work described and shall include all costs, direct and indirect, including extended overhead. Accepted by: ~ (Contractor) Recommended by: (Engineer) Approved by: Date: Date: Date: CONTRACT CHANGE ORDER NO. 10 City of Ashland WWTP Process Improvements SRF # 11750 Description of Items in Change Order RFP-24 Air & Vacuum Valve and Relief Valve Revisions for Reclaimed Water (Effluent) and No.3 Water Piping. By letter of January 4, 1999, the Engineer informed the Contractor of the need to revise the air & vacuum valves on the discharge of the effluent and No.3 water pumps, and to delete the relief valves shown. In a letter dated February 16, the Contractor submitted proposed costs of $932.00 for these revisions. After review, the Engineer informed the Contractor by letter of July 26, 1999 that this amount would be included in a forthcoming change order. RFP-68 V-Notch Weirs for Secondary Clarifier Nos. 1 and 2. In RFI-1046, the need for new V- notch weirs in Secondary Clarifier Nos. 1 and 2 was established. These were requested by letter of April 12, 1999, along with stainless steel anchors. In a letter dated April 20, the Contractor submitted proposed costs of $26,706.00 for this work. After review, the Engineer informed the Contractor by letter of April 21, 1999 that this amount would be included in a fodhcoming change order. RFP-72 Secondary Clarifier No. 3 Relocation. By letters of April 19 and 20, 1999, the Engineer confirmed discussions in the field that Secondary Cladtier No. 3 could be relocated four feet north and two feet west, to facilitate construction, with the understanding that this would be a "no-cost" change. The Contractor provided a verbal concurrence on June 4; the Engineer then informed the Contractor by letter of June 4, 1999 that this would be included in a forthcoming change order as such. RFP-76 Fire Extinguisher Type and Location. In RFI-82, the Contractor queried the number and location of fire extinguishers required; the Engineer provided quantities and indicated that an RFP would be issued. By letter of April 23, the Engineer provided precise locations of each size/type of fire extinguisher, based on consultations with the Ashland Fire Marshall; some of these are shown on the Plans, others are added per the RFP. In a letter dated April 26, the Contractor submitted proposed costs of $2,093.00 for the additional fire extinguishers. After review, the Engineer informed the Contractor by letter of April 28, 1999 that, since a painted red square is required around each wall-hung unit, the costs were acceptable and would be included in a forthcoming change order as an increase in Contract Price. RFP-77 Revision to Polyethylene NaOH Storage Tank. In Shop Drawing 13208-0209, the supplier offered a credit for reducing the wall thickness of the polyethylene storage tank for sodium hydroxide; by letter of April 28, 1999, the Engineer informed the Contractor that this was acceptable, and that a total credit of ($1,050.00) should be included in a forthcoming change order as a decrease in Contract Price. The Contractor provided a verbal concurrence on June 4; the Engineer then informed the Contractor by letter of June 7, 1999 that this would be included in a forthcoming change order as such. RFP-81 Anchor Bolts (Modification of Typical Detail S310). In RF1-1053, a modification of equipment anchor bolts, as shown in Typical Detail S310, was discussed, and a change proposed to allow anchor bolts to be drilled in and epoxied in place, with an embedment of at least 15 diameters. By letter of May 19, 1999, the Engineer informed the Contractor that the use of drilled and epoxied anchor bolts would be acceptable for equipment and pumps, with the exception of the WAS pumps (Abel Pumps) in the RAS/WAS Pump Station, and that this would be a "no-cost" change. The Contractor provided a verbal concurrence on June 4; the Engineer then informed the Contractor by letter of June 4, 1999 that this would be included in a forthcoming change order as such. RFP-83 Masonry Reinforcing & Anchor Bolt Revisions, RASANAS Pump Station. In RF1-1054, revisions to reinforcing steel in pilasters and in the walls of the RASANAS Pump Station, and to the size and spacing of anchor bolts for the ledger supporting the interior ceiling were allowed. By letter of May 25, 1999, the Engineer confirmed the changes and proposed that they be considered a "no-cost" change. The Contractor provided a verbal concurrence on June 4; the Engineer then informed the Contractor by letter of June 4, 1999 that this would be included in a forthcoming change order as such. RFP-86 Pig Launcher and Valves. By letter of May 27, 1999, the Engineer informed the Contractor that, in order to allow the pipe-cleaning "pig" to leave the pig launcher, the 8-inch eccentric plug valve and 8"X6" reducer shown at the launcher should be moved to under the WAS surge tank, and the 6-inch gate valve shown there should be mounted on the pig launcher; also, the outlet of the surge tank should be increased to an 8-inch size. The Engineer proposed that this be considered a "no-cost" change. The Contractor provided a verbal concurrence on June 4; the Engineer then informed the Contractor by letter of June 4, 1999 that this would be included in a forthcoming change order as such. RFP-91 Revise Safety Shower at Sodium Hydroxide Tank. By letter of June 10, 1999, the Engineer informed the Contractor of the need to revise the safety shower & eyewash station at the NaOH storage tank containment area to one with heat tracing and insulation, to assure operation even in cold weather. In a letter dated June 14, the Contractor submitted proposed costs of $2,177.00 for this revision. After review, the Engineer informed the Contractor by letter of June 15, 1999 that this amount would be included in a forthcoming change order. 3 CAROLLO ENGINEERS, P.C. CONTRACT CHANGE ORDER NO. 11 Project No. 4411B30 OWNER: City of Ashland, Oregon PROJECT: Wastewater Treatment Plant Process Improvements SRF # 11750 CONTRACTOR: Slayden Construction, Inc. ENGINEER: Carollo Engineers, P.C. The following changes, additions to or deletions from the work described in the Contract Documents are hereby authorized: Item No. 1 2 3 4 5 6 7 8 9 Original Contract Amount Net Change by Previous Change Orders Contract Amount prior to this Change Order Net Change due to this Change Order New Contract Amount The Contract Time is (unchanged) ~,~,,,,,,--, ,~/~: .............. :; by __ date will be January 14, 2001. Description Cost Time (See attachment) (dollars) (days) RFP-26 Relocation of Electrical MH-5 & HH-6 and Manhole Drains (1,206.00) -0- RFP-42 Reduce Size of Electrical Room ACU-R1 (1,833.00) -0- RFP-78 Revision to Interior Window in RAS/WAS Pump Station 23.00 -0- RFP-93 Valving for Pump in Temporary Sludge Piping -0- -0- RFP-94 Provide Drain for Heat Pump HPU-R1 587.00 -0- RFP-95 Angle for Pilaster and 6X14 Girder in RAS/WAS Pump Station 306.00 -0- RFP-96 Paint Secondary Clarifier No.2 & Revise Coating on Clarifier Nos.1 & 3 35,323.00 -0- RFP-98 Abel Pump Freight Costs 3,382.00 -0- RFP-99 Revise Temporary Piping to Primary Clarifier 3,863.00 -0- $12,374,000.00 279,676.00 12,653,676.00 40,445.00 $12,694,121.00 -0- calender days. The Contract completion The amounts indicated above shall be compensation in full for the work described and shall include all costs, direct and indirect, including ex~~head. Accepted b . (ContractO~r) Recommended by: Approved by: ~ ' ~ (City) Date: Date: Date: CONTRACT CHANGE ORDER NO. 11 City of Ashland WVVTP Process Improvements SRF # 11750 Description of Items in Change Order RFP-26 Relocation of Electrical MH-5 & HH-6 and Manhole Drains. By letter of January 5, 1999, the Engineer informed the Contractor of the desire to relocate electrical MH-5 and HH-6 onto higher ground to the east, to avoid potential flooding, and to install drains in these units and in MH-7 and HH-8. The relocated MH-5 and HH-6 would be installed in the additional embankment fill placed west of the RAS/WAS Pump Station under another RFP. In a letter dated May 21, the Contractor initially proposed this be a no-cost change. Following discussion, the Contractor submitted a revised proposed credit of ($1,206.00) for this relocation. After review, the Engineer informed the Contractor by letter of July 1, 1999 that this amount would be included in a forthcoming change order. RFP-42 Reduce Size of Electrical Room ACU-R1. In response to a query by the mechanical sUbcontractor, the size of the air conditioning unit for the electrical room of the RAS/WAS Pump Station was reviewed, with the conclusion that it be reduced. By letter of February 23, 1999, the Engineer informed the Contractor of the plan to reduce ACU-R1 from a 15-ton unit to a 12.5-ton unit. In a letter dated March 25, the Contractor submitted proposed credits of ($1,200.00) for this change. Following discussions, a revised credit of ($1,833.00) was agreed upon; this was confirmed by the Engineer in a letter dated July 2, 1999. RFP-78 Revision to Interior Window in RAS/WAS Pump Station. By letter of May 5, 1999, the Engineer informed the Contractor of the need to revise the interior window (re-lite) between the office and the electrical room in the RAS/WAS Pump Station from an aluminum frame to a hollow metal frame. In a letter dated June 29, the Contractor submitted proposed costs of $78.00 for this revision. Following review and discussions with the supplier, the supplier's estimate was revised, and the Engineer informed the Contractor by letter of July 2, 1999 that a revised amount of $23.00 would be included in a forthcoming change order. RFP-93 Valving for Pump in Temporary Sludge Piping. By letter of June 11, 1999, the Engineer informed the Contractor of the WWTP staff request to install two tees and three valves in the temporary sludge piping, to allow a pump to be used to lower the level in the sludge holding tank. In a letter dated June 16, the Contractor submitted a proposed cost of $1,1 93.00 for this work. After discussion, the Contractor submitted a revised proposal of a no- cost change that same day. After review, the Engineer informed the Contractor by letter of July 21, 1999 that this work would be included in a forthcoming change order as such. RFP-94 Provide Drain for Heat Pump HPU-R1. Following discussions in the field, the Contractor informed the Engineer by letter of May 18, 1999, that a drain could be provided for HPU-R1, located in the office of the RASNVAS Pump Station, to avoid "dripping" onto the walkway and stairs below. By letter of June 17, 1999, the Engineer formalized the discussions and requested that the drain be provided. In a subsequent letter dated June 25, the Contractor submitted proposed costs of $587.00 for this work. After review, the Engineer informed the Contractor by letter of July 6, 1999 that this amount would be included in a forthcoming change order. RFP-95 Angle for Pilaster and 6X14 Girder in RASANAS Pump Station. In RFI-102, the Contractor noted a difficulty in supporting the 6X14 girder across the ceiling of the electrical room in the RASNVAS Pump Station, as the girder would be immediately adjacent to the 9 pilaster in the eastern masonry wall of the room. By letter of June 25, the Engineer informed the contractor that a fabricated angle bracket would be required for the necessary support. In a letter dated June 29, the Contractor submitted proposed costs of $306.00 for this work. After review, the Engineer informed the Contractor by letter of July 2, 1999 that this amount would be included in a forthcoming change order. RFP-96 (revised) Paint SecondaN Clarifier No. 2 & Revise Coating on Clarifier Nos. I & 3. By letter of June 25, 1999, the Engineer informed the Contractor that the City wished to consider painting Secondary Clarifier No. 2, since Clarifier Nos. 1 & 3 are being coated. The contractor submitted proposed costs of $44,110.00 for this work in a letter dated July 2. Following review and discussions, the Engineer revised the scope of work by letter of July 6, including use of high solids epoxy on all three secondary clarifiers and allowing "near-white" blast cleaning of Secondary Clarifier No. 2, with the work on that unit to be in the spring or summer of 2000. In a subsequent letter dated July 8, the Contractor submitted proposed costs of $35,323.00 for the revised work. After review, the Engineer informed the Contractor by letter of July 15, 1999 that this amount would be included in a forthcoming change order. RFP-98 Abel Pump Freight Costs. By letter of July 6, 1999, the Engineer noted that there were discussions early in the project regarding cost differences in the pre-negotiated price for the Abel Pumps; at that time, it was agreed that the City would pay for the freight costs for the pumps. An invoice for $3,382.00 for the freight had been received by the Contractor, and the Engineer confirmed that this amount would be included in a forthcoming change order. RFP-99 Revise Temporary Piping to Primary Clarifier. By letter of July 6, 1999, the Engineer informed the Contractor that the temporary piping arrangement for the two raw sewage force mains, discharging to the primary clarifier, was causing a process upset to the cladtier; the piping needed to be extended out to the middle of the clarifier and supported from a steel beam. In a letter dated July 16, the Contractor submitted proposed costs of $4,419.00 for this work. Following review and discussions, the Contractor submitted revised proposed costs of $3,863.00 by letter dated July 26. After review, the Engineer informed the Contractor by letter of July 27, 1999 that this amount would be included in a forthcoming change order. 3 CAROLLO ENGINEERS, P.C. CONTRACT CHANGE ORDER NO. 12 Project No. 4411B30 OWNER: City of Ashland, Oregon PROJECT: Wastewater Treatment Plant Process Improvements SRF # 11750 CONTRACTOR: Slayden Construction, Inc. ENGINEER: Carollo Engineers, P.C. The following changes, additions to or deletions from the work described in the Contract Documents are hereby authorized: Item No. 1 2 3 4 Description (See attachment) RFP-34 UPS System for SCADA Remote I/O Panel No. 1 RFP-97 Electrical Revision for Heat Pump HPU-R1 RFP-100 New Raw Sewage Force Main (PRS) RFP-104 Replace Hydrostatic Relief Valve in Contact/UV Structure Cost Time (dollars) (days) -0- -0- -0- -0- 79,053.00 -0- 75.00 -0- Original Contract Amount Net Change by Previous Change Orders Contract Amount prior to this Change Order Net Change due to this Change Order New Contract Amount $12,374,000.00 320,121.00 12,694,121.00 79, 128.00 $12,773,249.00 The Contract Time is (unchanged) (m,-.,~..r,~t) (t~r.rme~r~l) by -0- calender days. The Contract completion date will be January 14, 2001. The amounts indicated above shall be compensation in full for the work described and shall include all costs, direct and indirect, including extended overhead. Accepted by: ~ (Contractor) Recommended by: (Engineer) Approved by: Date: Date: CONTRACT CHANGE ORDER NO. 12 City of Ashland WVVTP Process Improvements SRF # 11750 Description of Items in Change Order RFP-34 UPS System for SCADA Remote I/O Panel No. 1. By letter of January 22, 1999, the Engineer informed the Contractor that the UPS (uninterruptible power supply) for SCADA Remote I/O Panel No. 1 in the UV area could be reduced from 4.3 KVA to 1.8 KVA. In a letter dated July 7, the Contractor proposed that this be a "no-cost" change. After review, the Engineer informed the Contractor by letter of July 21, 1999 that this revision would be included in a forthcoming change order as such. RFP-97 Electrical Revision for Heat Pump HPU-R1. By letter of July 6, 1999, the Engineer informed the Contractor a change in the power to heat pump HPU-R1 was required, to provide 208/230 volt single phase power. The Engineer noted that this had been discussed with the electrical subcontractor along with RFP-26 and would be considered a "no-cost" change, and would be included in a fodhcoming change order as such. RFP-100 New Raw Sewage Force Main (PRS). By letter of July 14, 1999, the Engineer informed the Contractor of the plan to construct a new, 18-inch ductile iron pipe force main from a point near the proposed new Ashland Creek Pump Station to the new Headworks Infiuent Junction Box. By letter dated July 27, the Contractor submitted proposed costs of $79,053.00 for this work. After review, the Engineer informed the Contractor by letter of July 27, 1999 that this amount would be included in a forthcoming change order. RFP-104 Replace Hydrostatic Relief Valve in Contact/UV Structure. By letter of July 19, 1999, the Engineer informed the Contractor that a damaged hydrostatic relief valve in the north half of the contact/UV structure should be replaced with a new valve. On July 21, the Contractor submitted a proposed cost of $75,00 for the new valve. After review, the Engineer informed the Contractor by letter of July 21, 1999 that this amount would be included in a forthcoming change order. 2 CAROLLO ENGINEERS, P.C. CONTRACT CHANGE ORDER NO. 13 Project No. 4411B30 OWNER: City of Ashland, Oregon PROJECT: Wastewater Treatment Plant Process Improvements SRF # 11750 CONTRACTOR: Slayden Construction, Inc. ENGINEER: Carollo Engineers, P.C. The following changes, additions to or deletions from the work described in the Contract Documents are hereby authorized: Item No. 1 Description Cost Time (See attachment) (dollars) (days) 1,136,000.00 -0- RFP-105 New Ashland Creek Pump Station Original Contract Amount Net Change by Previous Change Orders Contract Amount prior to this Change Order Net Change due to this Change Order New Contract Amount $12,374,000.00 399,249.00 12,773,249.00 1,136,000.00 $13,909,249.00 The Contract Time is (unchanged) (th,.~,-.,,-.-,t) (,t,..,~r,.~,,~,-.,I,) by -0- calender days. The Contract completion date will be January 14, 2001. The amounts indicated above shall be compensation in full for the work described and shall include all costs, direct and indire¢, including extended overhead. Accepted by: ~ % - '~ ''% by. · Recommended .~, Approved by: ~ (City) Date: ~ /l& /~I Date: Date: CONTRACT CHANGE ORDER NO. 13 City of Ashland WWTP Process Improvements SRF # 11750 Description of Items in Change Order RFP-105 New Ashland Creek Pump Station. During the spring of 1999, discussions were held regarding the need to replace the existing Ashland Creek Pump Station. The existing facility was old, lacked sufficient capacity, was a continual maintenance problem with frequent breakdowns of equipment, and posed a real safety problem for operator access. The decision was reached to replace the facility with a new pump station incorporating submersible pumps, adjacent to the existing facility. The Contractor's input was solicited during design, to facilitate construction and hold costs down. On July 26, 1999, the Engineer established this RFP; draft drawings and specifications were supplied to the Contractor on July 20. In late July, the Engineer and the Contractor met to discuss estimated costs for the facility. By letter of August 6, the Engineer transmitted final drawings and specifications, along with a scope of work for the construction of the new pump station. The work included boring under Ashland Creek for installation of new sewer piping and process pipelines to carry effluent and biosolids to the offsite facility under a subsequent project, as well as demolition of the existing facility when the new pump station is completed. In a transmittal dated August 14, the Contractor submitted proposed costs of $1,136,000.00 and proposed minor changes to the scope of work. Following review, the Engineer informed the Contractor by letter of August 16, 1999, that the revisions to the scope of work and the costs were acceptable, and the costs would be included in a forthcoming change order as an increase in Contract Price. 2 C ITY OF ASHLAND = CITY HAL ASHLAND, OREGON 97520 L NOTICE OF TRANSMITTAL TO: JAIME IZASA, DEQ - EUGENE (CWSRF) ~t-'~RBARA CHRISTENSEN, RECORDER DATE: PROJECT: JOB NO.: SUBJECT: AUGUST 23, 1999 ASHLAND WWTP PROCESS IMPROVEMENTS DEQ - CWSRF #11750 SLAYDEN CHANGE ORDERS THE FOLLOWING ITEMS ARE BEING SENT TO YOU: FULLY EXECUTED CHANGE ORDERS FOR SLAYDEN CONSTRUCTION CO# 10 - V-NOTCH WEIRS FOR CLARIFIERS AND MISC CHANGES CO# 11 - PAINTING FOR SECONDARY CLARIFIERS; MISC PIPING AND FREIGHT CHARGES CO# 12 - NEW RAW SEWAGE FORCE MAIN CO# 13 - NEW ASHLAND CREEK PUMP STATION $30,858.00 $40,445.00 $79,128.00 $1,136,000.00 ENCLOSED UNDER SEPARATE COVER REMARKS: COPIES TO: file (G:dawn\NOT.wpd) Department of Public Works By: Paula Brown Title: Public Works Director .