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HomeMy Public PortalAboutWell #9 & Tank Project Change Order #7Director Brona D. Steele City of Crestview Department of Public Services 715 Ferdon Boulevard North Crestview, Florida 32536 INTEROFFICE MEMORANDUM PUBLIC SERVICES DEPARTMENT TO: Wayne Steele FROM: Fred Cook DATE: November 13, 2013 Wednesday COPY: File SUBJECT: Well #9 & Tank Project Change Order #7 Telephone No. (850) 682-6132 Fax No. (850) 682-7359 E-Mail: fredcook@citvofcrestview.orq Here is Change Order #7. This change order is to add the cost of staged grouting of the 18" casing instead of continuous grouting — due to conditions encountered in the ground. If there are any questions, let me know. Please process this to Ms. Roy for the change. C�' TETRA TECH Via E-mail November 5, 2013 Tt No. 200-08540-12001 Wayne Steele Public Services Director City of Crestview 715 N. Ferdon Blvd. Crestview, Florida 32536 Subject: Old Bethel Road Part I Change Order No. 7 Dear Mr. Steele: Enclosed, please find Change Order No. 7 from Speegle Construction, Inc. (Speegle). Unforeseen conditions found between 400' and 500' below land surface (Ns) have necessitated the 18" production casing be set 100' deeper than was originally estimated in order for it to be set in stable strata. This, in addition to a loss zone at 403'- 407' bls which caused a partial, but manageable, collapse of the borehole, and required a cement shot, has caused the driller to re -assess the method in which they prefer to perform the final grouting. The driller proposes to move forward with a staged grouting approach that consists of grouting in two stages with time in between the stages (stage grouting) to allow for partial setting of the first lift of grout. This allows for safer, reduced pressures at the loss zone. If the grouting were performed in one single lift under the current conditions, the pressure could potentially create a problem by blowing out the borehole. Change Order No. 7 covers Speegle's need to order additional casing and take additional time to perform the stage grouting. Quantity adjustments to items included in the Contract are not included in this Change Order such as the additional 100 LF of 18" production casing, the actual amount of grout used, and the reduced length of open -hole drilling from 420 LF to 300 LF. These are unit price line items in the Contract and the actual amounts used will appear in future Pay Applications after the work is performed. In all, we anticipate the noted adjustments in the unit price quantities will credit approximately $3,000 back to the Contract. Change Order No. 7 amounts to an addition of $6,298 to the Total Contract Price and seven (7) days to the Total Contract Time. We have reviewed the proposed Change Order provided by Speegle and find it acceptable. Should you have questions or need additional information, please call. Timothy A. Vanderwalker, PE Project Manager Cc: Michael Bomar, PE, Tetra Tech Fred Cook, PE, City of Crestview Tetra Tech, inc. 12815 Emerald Coast Parkway, Suite 110, Destin, FL 32550 850.837.9278 Fax 850.837.7269 www.tetratech.com P:\201 I\Crestview Well and Tank \Constructionaeview-Approval\ContractorCOs\Part I\Part I Change Order No. 7.docx. SCONSTRUCTION INC. CGC-062-189 l PEEGLE November 1, 2013 Mr. Tim Vanderwalker Tetra Tech 12815 Emerald Coast Pkwy, Suite 110 Destin, FL 32550 Dear Sir, Speegle Construction, Inc. Tel: (850) 729-2484 210 Government Avenue Fax: (850) 729-1993 Niceville, Florida 32578 www.speegleconstruction.com Dan Carruth Project Manager RE: Crestview Well No. 9 COR 1002-007, Revised - Grout Casing in Multiple Stages Speegle Construction, Inc. respectfully submits the attached estimate for changes associated with grouting the 500 LF of 18" well casing in mulitple (2) Ilifts. The first grout lift will be from the bottom of the casing (500' BLS) to ten 10' above the area which received the cement slurry (390' BLS), as suggested by Rowe Drilling. This estimate is based on our best understanding of the changes that are necessary to the scope of work. In the event that additional work is required due to unforseen conditions or impacts to other systems due to changing the size of the well, Speegle reserves the right to revisit this estimate. While this will result in more grout, it is unknown at this time what the total quantity of grout required will be or if we will exceed the originally scheduled 54 CY. Total estimate for the above work: $ 6,298 Additional contract Extension: 7 Calendar Days p^K • Should you require any additional information, please do not hesitate to contact Dan Carruth at 850-729-2484 or email dcarruth@speegleconstruction.com Sincerely, Dan Carruth cc: file Project Manager SECTION 00843 CHANGE ORDER FORM Project: City of Crestview Part I - Well No. 9 and Elevated Storage Tank DATE OF ISSUANCE: EFFECTIVE DATE: OWNER'S CONTRACT NO.:200-08540-12001 CHANGE ORDER NO. 07 CONTRACTOR:Speegle Construction, Inc. ENGINEER: Tetra Tech The following changes are hereby made to the Contract Documents: CHANGE IN CONTRACT PRICE: Original Contract Price $ 1,965,660.00 CHANGE IN CONTRACT TIMES: Original Contract Times Substantial Completion: 12/23/2013 Ready for final payment: + 30 Days days or dates Net changes from previous Change Orders No. 1 to No. 6 $ 48,198.00 Net change from previous Change Orders No. 1 No. 6 80 to Contract Price prior to this Change Order $ 2,013,858.00 Contract Times prior to this Change Order Substantial Completion: 3/13/2014 ; Ready for final payment: + 30 Days days or dates Net Increase (grease) of this Change Order $ 6,298.00 ✓ q Net Increase Change Order (decrease) of this 7 V days Contract Price with all approved Change Orders $ 2,020,156.00 V' Contract Times with all approved Change Orders Substantial Completion: 3/20/2014 Ready for final payment: + 30 Days days or dates MAD/slm/specs/s-1 /00843 Tt#200-08540-12001 00843-1 l "* 050412 FOR CONSTRUCTION INCLUDING ADDENDUMS 1, 2, 3, 4 & 5 1 /29/2013 CHANGES ORDERED: I. GENERAL This change order is necessary to cover changes in the work to be performed under this Contract. The General Conditions, Supplementary Conditions, Specifications and all parts of the Project Manual listed in Article 1, Definitions, of the General Conditions apply to and govern all work under this change order. Change Order No. 7 II. REQUIRED CHANGES: Grout 18" casing in multiple stages/lifts. III. JUSTIFICATION: Rowe Drilling recommended that the casing be grouted in multiple stages, or lifts, which will result in a reduced amount of pressure on the area which previously received a shot of cement slurry (390' BLS). Request 7 calendar days added to contract (3 of which are compensated and associated with stage grouting and additional time to order additional 18" casing and 4 of which are uncompensated and related to additional days necessary to reach suitable rock formation and confirm final 18" casing depth) IV. PAYMENT: MAD/s1m/specs/s-1 /00843 Tt#200-08540-12001 00843-2 050412 FOR CONSTRUCTION INCLUDING ADDENDUMS 1, 2, 3,4 & 5 1 /29/2013 V. APPROVAL AND CHANGE AUTHORIZATION: Acknowledgments: The aforementioned change, and work affected thereby, is subject to all provisions of the original contract not specifically changed by this Change Order; and, It is expressly understood and agreed that the approval of the Change Order shall have no effect on the original contract other than matters expressly provided herein. Change Order Request by: Change(s) Ordered by: RECOMMENDED BY: Tetra Tech oed Signature) t(Date) Project Manager (Title) APPROVED BY: ACCEPTED BY: Speegle Construction, Inc. Contractor) 11/1/2013 (Date) Vice -President City of Crestview, Florida c� (Owner) By:/L.eat.4 mil / 2-73 /26 (Authorized Signature) (Date) END OF SECTION MAD/sl m/specs/s-1 /00843 Tt#200-08540-12001 00843-3 (Title) 050412 FOR CONSTRUCTION INCLUDING ADDENDUMS 1, 2, 3, 4 5 1 /29/2013 REQUEST for CHANGE ORDER SUMMARY DESCRIPTION: Grout Casing in Multiple Stages REASON FOR CHANGE: UnforSeen Conditions ARCH RFP# SCI RCO# QUOTE DATE 0 1002-007 11/1/2013 DIV SCOPE DESCRIPTION NOTES LABOR MATT EQUIPT SUBCONT SCI COSTS TOTAL SUBCONTRACTED TOTAL GRAND TOTAL 1 General Conditions $ 573.32 $ 179.28 $ - $ - $ 752.60 $ - $ 752.60 2 Sitework & Demolition $ - $ - $ - $ 4,720.00 $ - $ 4,720.00 $ 4,720.00 3 Concrete $ - $ - $ - $ - $ - $ - $ ' 4 Masonry $ - $ - $ - $ - $ - $ - $ - 5 Steel $ - $ - $ - $ - $ - $ - $ ' 6 Carpentry, Wood & Plastic $ - $ - $ - $ - $ - $ - $ - 7 Thermal & Moisture Protection $ - $ - $ - $ - $ - $ - $ - 8 Openings $ - $ - $ - $ - $ - $ - $ ' 9 Finishes $ - $ - $ - $ - $ - $ - $ ' 10 Specialties $ - $ - $ - $ - $ - �$ $ - 11 Equipment $ - $ - $ - $ - $ - $ - $ - 12 Fumishings $ - $ - $ - $ - $ - $ - $ ' 13 Special Construction $ - $ - $ - $ - $ - $ - $ ' 14 Hoisting & Conveying $ - $ - $ - $ - $ - $ - $ ' 15 Fire Sprinklers $ - $ - $ - $ - $ - $ - $ ' Plumbing $ - $ - $ - $ - $ - $ - $ - HVAC & Controls $ - $ - $ - $ - $ - $ - $ - 16 Electrical $ - $ - $ - $ - $ - $ $ - 17 Commissioning $ - $ - $ - $ - $ - $ - $ ' SubTotals Payroll Burden Sales Tax Sub Bond SubTolals General Liability Insurance Property (Builders Risk) Insurance P & P Bond Gross Receipts Tax (City Bus Lic) SUBTOTAL Overhead/Profit Overhead/Profit SUBTOTAL GRAND TOTAL Extended General Overhead $ 573.32 $ 179.28 $ - $ 4,720.00 $ 752.60 $ 4.00 $ 5,472.60 45% $ 257.99 $ 257.99 $ - $ 257.99 6% -: $ 10.76 I $ - $ 10.76 $ - $ 10.76 0.00% $ - $ - $ - $ - $ 831.32 $ 190.04 I $ - $ 4,720.00 $ 1,021.35 $ 4,720.00 $ 5,741.35 0.4200% of Subtotal of Subtotal of Subtotal $ 11.50 $ 19.82 $ 31.32 0.6500% $ 17.81 $ 30.68 $ 48.49 1.0000 % $ 27.40 $ 47.20 $ 74.60 0.0000 % $ - $ - $ - $ 1,078.06 $ 4,817.70 $ 5,895.77 15.00% $ 161.71 $ - $ 161.71 5.00% $ - $ 240.89 $ 240.89 $ 1,239.77 $ 5,058.59 $ 6,298.36 $ 1,239.77 $ 5,058.59 $ 6,298.36 $ - $ - $ - $ - $ - $ - $ 1,240 $ 5,059 $ 6,298 Time Extension 'This Proposal is for only the work identified by the above change description. • See reservation of rights language on the Detail backup. 7 Calendar days 9/( DETAIL PROPOSED CHANGE ORDER ESTIMATE DIRECT COST ASSOCIATED WITH CHANGE ORDER DESCRIPTION: Grout Casing in Multiple Stages REASON: Unforseen Conditions ARCH RFP # SCI RCO# QUOTE DATE 1002-007 11/1/2013 CODE SCOPE DESCRIPTION QUANT units L / U.P. LABOR M / U.P. MAT'L EQUIPMENT SUBCONT TOTAL 1 GENERAL CONDITIONS Project Manager 33% 0.43 wks 1,730.00 $ 246.90 $ - $ 246.90 Project Manager's Truck/Insurance/Gas 33% 0.10 months $ - 650.00 $ 21.45 $ 21.45 Superintendent 33% 0.43 wks 1,550.00 $ 221.43 $ - $ 221.43 Superintendent's Truck/Insurance/Gas 33% 0.10 months $ - 650.00 $ 21.45 $ 21.45 Office Trailer 0.10 months $ - 200.00 $ 20.00 $ 20.00 Superintendent Cell Phone 33% 0.10 months $ 150.00 $ 4.95 $ 4.95 Temp Toilets 0.10 months $ - 150.00 $ 15.00 $ 15.00 Asbuilt documentation 2 HRS 25.00 $ 50.00 $ - $ 50.00 RFP Preparation 1 HRS 50.00 $ 50.00 $ - $ 50.00 Temp Utilities 0.10 months 50.00 $ 5.00 $ $ 5.00 Backhoe 0.43 wks $ 75.00 $ 32.14 $ 32.14 Loader/Dozer 0.43 wks $ 150.00 $ 64.29 $ 64.29 Copying & Specifications $ $ $ Mail & Express Postage $ - $ $ - Layout & Field Engineering $ - $ - $ - Crane & Hoisting $ - $ $ - Schedule Study & Modification $ $ - $ Prepare Fragnet $ $ - $ - Material Handling Equipment $ - $ $ - Safety $ - $ - $ Clean-up & Debris Handling $ - $ - $ - Dumpster Pulls $ - $ $ - Equipment Rental $ $ - $ - Trucking & Hauling $ - $ - $ - Small Tools $ - $ - $ Other $ - $ - $ - $ $ - $ - Division 1 Subtotal $ 573.32 $ 179.28 $ - $ - $ 752.60 2 SITEWORK & DEMOLITION Rowe Drilling - Stage Grouting (See Quote) 1 LS $ - $ $ 4,720.00 $ 4,720.00 Division 2 Subtotal $ - $ - $ - $ 4,720.00 $ 4,720.00 3 CONCRETE 0 EA 0.00 $ - $ - $ $ - $ $ - Division 3 Subtotal $ - $ - $ - $ - $ - 4 MASONRY & STONE $ - $ - $ - $ - $ $ Division 4 Subtotal $ - $ $ - $ - $ " 5 STEEL & METALS EA $ - $ - $ $ - $ - $ Division 5 Subtotal $ - $ - $ - $ - $ - 6 WOOD & PLASTICS $ - $ $ - $ - $ - $ - $ - Division 6 Subtotal $ - $ - $ - $ - $ - 7 THERMAL & MOIST PROTECT $ $ $ $ - $ $ - Division 7 Subtotal $ - $ - $ - $ - $ " 8 OPENINGS $ $ - $ - $ - $ - $ - Division 8 Subtotal $ - $ - $ - $ - $ - 9 FINISHES $ - $ - $ - $ - $ $ - Division 9 Subtotal $ - $ - $ - $ - $ - 10 SPECIALTIES $ - $ - $ - $ - $ - $ - Division 10 Subtotal $ - $ - $ $ - $ - DESCRIPTION: REASON: DETAIL PROPOSED CHANGE ORDER ESTIMATE DIRECT COST ASSOCIATED WITH CHANGE ORDER Grout Casing in Multiple Stages ARCH RFP # SCI RCO# QUOTE DATE 1002-007 Unforseen Conditions 11/1/2013 CODE SCOPE DESCRIPTION QUANT units L / U.P. LABOR M / U.P. MAT'L EQUIPMENT SUBCONT TOTAL 11 EQUIPMENT $ - $ $ - $ - $ $ Division 11 Subtotal $ - $ - $ - $ - $ - 12 FURNISHINGS $ - $ - $ $ - $ - $ Division 12 Subtotal $ - $ $ - $ - $ - 13 SPECIAL CONSTRUCTION $ - $ - $ Division 13 Subtotal $ - $ - $ - $ - $ - 14 HOISTING & CONVEYING $ $ - $ $ $ $ - Division 14 Subtotal $ - $ - $ - $ - $ - 15 FIRE PROTECTION $ $ - $ - $ $ - $ - Division 15 Fire Subtotal $ - $ - $ - $ - $ - 15 PLUMBING $ - $ - $ $ - $ - $ - Division 15 Plumb Subtotal $ - $ - $ - $ - $ - 15 MECHANICAL & HVAC $ $ - $ $ - $ - $ - $ - Division 15 HVAC Subtotal $ - $ - $ - $ - $ - 16 ELECTRICAL $ $ $ - $ - $ $ - $ Division 16 Subtotal $ - $ - $ - $ - $ - 17 COMMISSIONING $ $ - $ $ - $ $ Division 17 Subtotal $ - $ - $ - $ - $ - SubTotals $ 573.32 $ 179.28 $ - $ 4,720.00 $ 5,472.60 (v14 ROWE DRILLING COMPANY, INC. WATER WELL CONTRACTORS WATER WELLS & PUMPS, SALES AND REPAIR SERVICES 885 Herod Hwy Dawson GA 39842 Ph.# 229-894-6959 Fax# 229-995-4737 10/21/2013 Dan Carruth Speegle Construction Inc. 210 Government Ave. Niceville, FL 32578 Via Email: dcarruth@speegleconstruction.com Dan, Yes, you heard right that Friday 10/18/2013 we encountered what appeared to be suitable rock formation to seat the 18" well casing. We contacted dense brown lime rock at 489'. We continued to drill this formation to a depth of 500'. Samples of the formation from 489' to 500'were collected for Tetra Tech's inspection and approval and a comparison to a State of Alabama well competition report supplied by Tetra Tech to another City of Crestview's well located close by. I knew that this week would be spent preparing the drill site and the 18" casing for installation so I took the liberty Friday of last week getting the remaining 18" casing required started this way so as not to hold things up. Again, you heard right regarding the need to stage grout the 18" casing. As you are aware the 400' zone where we contacted the rock and incurred the loss of our drilling fluid return had to be grouted in order to continue the test hole. Our concern is that if an attempt to grout to the surface in a single pumping session is tried, the pressure would be to great on the patch we have on the loss zone and will break out and allow the cement slurry to travel out into the lost zone and not return to the surface. If we lose the cement slurry to the lost zone the hydrostatic pressure will drop in the hole allowing the soft sands above 400' to cave in and make having a continuous casing seal of slurry unobtainable. Our suggestion would be to allow us to make the first session of pumping slurry to seal the casing be from the end of the casing 500' to 10' above the lost zone or 390'. That would greatly reduce the pressure at that critical point in the bore hole and provide a 10' plug above the lost zone to enable the second pumping something to seat on and greatly increase our chances for a successful casing seal from bottom to land surface. We have listed our additional cost and estimated time increase for installing the 18" deeper. Please do not hesitate to contact if you have any questions regarding our request of additional time and cost. Installing Additional 18" Well to 500' 1. 100'-0" Additional 18" Well Casing Installed @ $140.00 / ft. 2. Additional Rig & Crew Expense to Stage Grout 18" Casing $14, 000.00 $4,720.00 Estimated Total of Additional Cost $18,720.00 Thank you for allowing Rowe Drilling Company to be of service. Respectfully Cliff Freeman PROVIDING QUALITY WATER SERVICE SINCE 1946 Tallahassee — Savannah — Lakeland - Dawson W W W.ROWEDRILLING.COM