The URL can be used to link to this page

Home My WebLink About08.i EDB Sawcross CO 1 for GP WTP FINAL EXECUTIVE SUMMARY AGENDA ITEM: Proposed Change Order No. 1 to the Construction Contract with Sawcross, Inc., for Additional Materials and Labor for the Governor's Park Water Treatment Plant(GP WTP) Project. CCUA Project No.: 1127-002 CCUA Bid No.: 22/23-A24 CCUA Financial Job No.: 21026WP Date: February 16, 2024 BACKGROUND: CCUA staff requests authorization from the Board of Supervisors to execute Change Order No. 1 to the construction contract with Sawcross, Inc., for additional materials and labor for the GP WTP Project. As bid,the designed water plant treatment process to reduce sulfides in the raw water includes natural tray aeration. This is standard at every other CCUA water plant because sulfide levels are low and tray aeration is the most cost-effective method to reduce sulfides. Following completion of the wells, and after awarding the plant construction contract, water quality testing indicated that source water sulfide levels are elevated(>1.5 mg/L). When sulfide levels are at this level, the Florida Department of Environmental Protection (FDEP) requires additional or alternate treatment to reduce sulfides in the finished water. CCUA staff and our engineer of record, Dewberry, determined that the most reliable, effective, and cost-efficient treatment is to use a forced draft aerator with upstream CO2 injection. The CO2 injection lowers the pH of the water and allows the sulfides to be removed more effectively. Dewberry sized and then requested pricing for the new system from two reputable providers and recommended the lower cost alternative. CCUA staff accepted the recommendation and requested pricing from the contactor, Sawcross, to incorporate these systems. The proposed change order will authorize Sawcross to purchase and implement the aeration and CO2 injection systems into the GP WTP project. The attached,negotiated pricing proposal for$1,051,050.66 is fair and reasonable and represents negotiation of reduced markups than those allowed in the contract. These additional expenses could not have reasonably been anticipated at the time of the original agreement. It is customary in the water business to await well test results before moving to a more expensive sulfide removal system. CCUA intends to utilize the contract clause allowing the Utility to purchase materials directly from the manufacturer or distributor to save the sales taxes associated with the purchase. Staff will return in a subsequent Board meeting to present Change Order No. 2 for a reduction in the construction contract price to reflect this purchase. BUDGET: The current budget for the project, $9,375,000.00, is not sufficient to cover the cost of the proposed change order. $625,000.00 will be transferred to the project budget from the CIP Contingency to cover the cost of the change order and allow for a $238,953.19 project contingency. The updated budget totals $10,000,000.00 with these changes. //DD(Author) //PS,AA(Review) //PS(Final) RECOMMENDATION: Staff respectfully requests authorization from the Board of Supervisors to execute Change Order No. 1 to the construction contract with Sawcross, Inc., in the amount of$1,051,050.66 for additional materials and labor for the GP WTP Project. ATTACHMENTS: Project Budget Summary Change Order No. 1 Sawcross Inc., Pricing Proposal //DD(Author) //PS,AA(Review) //PS(Final) Project Budget $9,375,000.00 Element Cost Dewberry- Design, Bid, & SDC $1,342,049.53 Complete Services-Well Drilling $1,020,350.00 Sawcross WTP Bid $5,049,429.00 Pre-Purchased Equipment $1,317,628.00 Sub-Total $8,729,456.53 Change Orders - 2/20/2024 Dewberry Contract Amendment $57,826.61 Sawcross CO#1 $1,051,050.66 Change Order Sub-Total $1,108,877.27 TOTAL $9,838,333.80 Addt'l Changes - 3/5/2024 Owner Direct Purchase-Aerator& CO2 $698,370.00 Owner Direct Purchase- PVC & Fittings $17,684.00 Reduced Ferguson Pre-Purchased Materials -$34,173.75 Sawcross CO#2 -$759,167.24 Changes Sub-Total -$77,286.99 New Project Total $9,761,046.81 Transfer from CIP Contingency $625,000.00 Revised Project Budget $10,000,000.00 Project Contingency $238,953.19 cothv j/ Clay County Utility Authority Working together to 3176 Old Jennings Road public health, Middleburg, Florida 32068-3907 protectconserve ourpublic health, resources,and create l�TY a�zHoaS Telephone (904) 272-5999 long-term value for our Facsimile (904) 213-2498 ratepayers. Change Order No. 1 Date: February 20, 2024 Project: Governor's Park WTP Construction Owner: Clay County Utility Authority CCUA Bid No.: 22/24-A24 3176 Old Jennings Road CCUA Project No.: 1127-002 Middleburg, FL 32068 (904)272-5999 Vendor: Sawcross, Inc. Engineer: Dewberry Engineers, Inc. 10970 New Berlin Rd. 800 North Magnolia Ave. Jacksonville, FL 32226 Ste. 1000 (904) 751-7500 Orlando, FL 32803 (863) 345-0838 CONTRACT TIMES ORIGINAL PREVIOUS CO CURRENT CO NTP 1/8/2024 DAYS ADD 0 0 SUB. COMP 365 1/7/2025 1/7/2025 FINAL COMP 395 2/6/2025 2/6/2025 INCREASE OR DECREASE IN ITEM DESCRIPTION OF CHANGE(S) QTY. UNIT PRICE CONTRACT PRICE Contract Increase 1 Labor w/Mark Ups 1 $39,445.00 $39,445.00 2 Materials w/Mark Ups 1 $864,487.15 $864,487.15 3 Equipment w/Mark Ups 1 $11,783.75 $11,783.75 4 Subcontractors w/Mark Ups 1 $133,760.55 $133,760.55 5 Bond 1 $1,574.21 $1,574.21 TOTAL INCREASE $1,051,050.66 TOTAL DECREASE $NET CHANGE RESULTING FROM THIS CHANGE ORDER $ 1,051,050.66 ORIGINAL CONTRACT PRICE $ 5,049,429.00 Net Increases by Change Orders (prior to this change order) $Net Decreases by Change Orders (prior to this change order) $ - Total Net Change by Change Orders (prior to this change order) $ - CONTRACT PRICE PRIOR TO THIS CHANGE ORDER $ 5,049,429.00 NET CHANGE RESULTING FROM THIS CHANGE ORDER $ 1,051,050.66 CONTRACT PRICE INCLUDING THIS CHANGE ORDER $ 6,100,479.66 This document shall become an amendment to the contract and all provisions of the contract will apply hereto. Accepted by: Date: Engineer of Record Accepted by: Date: Vendor Accepted by: Date: Owner ►� SAWCROSS „ Contractors & Engineers PROPOSED CHANGE ORDER COVER Change Order Request No.: 001 _ Project: CCUA Governor's Park WTP Owner Project No.: 1720-002 Sawcross Project No.: 2312 TO: Clay County Utility Authority (FOR APPROVAL) 3176 Old Jennings Road Middleburg, FL 32068 ATTN: Darrell Damrow, P.E. We herewith submit the following for your consideration: CCUA/Dewberry have requested the addition of a forced draft aerator and CO2 system with storage. This price includes all material, labor and equipment required per conversation and full site plan provided by Dewberry. TOTAL COST FOR THE ABOVE-DESCRIBED WORK IS: $1,051 ,050.67 TIME EXTENSION(IN CALENDAR DAYS)REQUIRED TO BE ADDED TO THE CONTRACT FOR THIS WORK IS: 0 DAYS AUTHORIZATION SHALL NOT BE VALID IF THIS REQUEST IS ALTERED WITHOUT SAWCROSS INCORPORATED'S APPROVAL. THE ABOVE-DESCRIBED WORK IS A CHANGE IN SCOPE TO BE FUNDED FROM A CHANGE ORDER. THE ABOVE IS ACKNOWLEDGED: Design Professional Date: THE ABOVE AUTHORIZATION IS: APPROVED NOT APPROVED Owner Date: PLEASE RETURN ONE(1)COPY OF THIS REQUEST WITH YOUR INDICATIONS MARKED ABOVE. Date: SAWCROSS INCORPORATED Rev.4/2022 SAWCROSS SAWCROSS,INC. Contractors & Engineers GOVERNOR'S PARK WTP(AERATOR/CO2) PREPARED FOR: CCUA PREPARED BY: Drew DATE: 2/16/2024 PROPOSED CHANGE )1 Hickinbotham ORDER LABOR DESCRIPTION OF WORK STANDARD OVERTIME BASE OVERTIME TOTAL HOURS HOURS RATE RATE Pipe Foreman 101=EflEtil 0.0 $75.00 $0.00 $9,000.00 Pipe Fitter lal= 3E111 0.0 $55.00 $0.00 $6,600.00 Equipment Operator 17/271:1 0.0 $55.00 $0.00 $0.00 Pipe Fitter Helper laln= 303 0.0 $45.00 $0.00 $5,400.00 DIRECT LABOR HOURS •r r DIRECT LABOR HOURS OVERTIME 0.0 DIRECT LABOR HOURS TOTAL 360.0 SUPERINTENDENT ECEI 0.0 $95.00 $0.00 $11,400.00 PROJECT MANAGER 0.0 $95.00 $0.00 $1,900.00 Labor Subtotal $34,300.00 Contingency' 0% 0 Labor Total i $34,300.00 MATERIALS DESCRIPTION QTY UNIT COST TOTAL COST TOTAL WesTech,Inc. Forced Draft Aerator(Model AWF31S) 1 $306,370.00 $306,370.00 $306,370.00 TOMCO2 Systems Carbon Dioxide Storage System 1 $392,000.00 $392,000.00 $392,000.00 4,000 psi Concrete(2 cy) 7'x 10'Concrete Pad for PSF Panel 2.5 $750.00 $1,875.00 $1,875.00 4,000 psi Concrete(8 cy) 18'x 10'Concrete Pad for CO2 Storage 8 $750.00 $5,625.00 $5,625.00 4,000 psi Concrete(11 cy) 6'x 6'Injection Vault(Cast-In-Place) 11 $750.00 $7,875.00 $7,875.00 4,000 psi Concrete(1 cy) Thrust Block @ Buried 90-Degree Bend 1 $750.00 $750.00 $750.00 Fuel Fuel for Equipment(225 gal) 225 $4.00 $900.00 $900.00 Miscellaneous Mechanical Ball Valves,Saddles,Valve Boxes,etc. 1 $5,000.00 $5,000.00 $5,000.00 Aluminum Access Hatch Access Hatch @ CO2 Injection Vault 1 $5,000.00 $5,000.00 $5,000.00 Miscellaneous Tools Tools for Setting Equipment 1 $2,500.00 $2,500.00 $2,500.00 Miscellaneous Metals Anchor Bolts for CO2 Equipment 1 $1,500.00 $1,500.00 $1,500.00 Ferguson Waterworks Pipe,Valve and Fittings Material 1 $17,684.00 $17,684.00 $17,684.00 Epoxy/Miscellaneous Grout Epoxy/Grout for Anchor Bolts 1 $500.00 $500.00 $500.00 Concrete Encasement(4,000 psi) Encasement for RW Piping Under Tank(DEDUCT) -12 $750.00 -$9,000.00 -$9,000.00 Prefabricated Metal Canopy Sunshade for PSF Panel(BUDGET) 1 $15,000.00 $15,000.00 $15,000.00 Material Subtotal $753,579.00 Tax $45,820.74 Contingency 0% $0.00 Material Total $799,399.74 EQUIPMENT DESCRIPTION QTY.RATE UNIT COST DAY(S)/WEEK(S) TOTAL Crane Rental Crane to Set CO2 Unit/Storage and Aerator 1 $7,500.00 1.00 $7,500.00 Trailer Pump Concrete Trailer Pump for Concrete Placement 1 $2,500.00 1.00 $2,500.00 Equipment Subtotal $10,000.00 Tax $712.50 Contingency 0% $0.00 Equipment Total $10,712.50 GENERAL CONDITIONS DESCRIPTION QTY.RATE UNIT COST DAY(S)/WEEK(S) TOTAL N/A N/A 0 $0.00 0.00 $0.00 N/A N/A 0 $0.00 0.00 $0.00 GCs Subtotal $0.00 Contingency' 0% $0.00 GCs Total $0.00 SUBCONTRACTORS DESCRIPTION QTY.RATE UNIT COST UNIT TOTAL Precon Corp. 3,600 GPM Aerator(DEDUCT) 1 -$33,723.00 1.00 -$33,723.00 PCG,Inc. Breakers/Wiring for CO2 and Aerator 1 $74,500.00 1.00 $74,500.00 McKendree's Plumbing CO2 Lines(2-Inch and 1/2-Inch)Welded 1 $35,450.00 1.00 $35,450.00 WesTech,Inc. Freight for Forced Draft Aerator 1 $44,569.00 1.00 $44,569.00 WesTech,Inc. Onsite Field Services for Forced Draft Aerator 1 $6,595.00 1.00 $6,595.00 SC Subtotal $127,391.00 Contingency' 0% $0.00 SC Total $127,391.00 SUMMARY EXPECTED DELIVERY TIMES: LABOR(Including 50.00%Burden) $34,300.00 TOMCO2:8 weeks for submittals;20-22 weeks for delivery MATERIALS $799,399.74 WesTech:8-10 weeks for submittals;12-14 weeks for delivery EQUIPMENT $10,712.50 GENERAL CONDITIONS $0.00 EXCEPTIONS: SUBCONTRACTORS $127,391.00 Per conversations,the DR18 PVC&SCH10 316SST pipe and fittings are TOTAL COSTS $971,803.24 being added from the CO2 vault towards the tank.These items were not MARK UPS ON LABOR(15%) $5,145.00 included in the CCUA pre-purchase agreement with Ferguson.Ductile iron MARK UP ON AERATOR/CO2 EQUIPMENT(8%) $59,227.76 pipe in this area is being eliminated and will be deducted from the pre- MARK UPS ON OTHER MATERIAL(10%) $5,859.65 purchase PO with Furguson.CCUA is handling the initial fill of the CO2 tank MARK UPS ON EQUIPMENT(10%) $1,071.25 once installed. MARK UPS ON SUBCONTRACTORS(5%) $6,369.55 BOND $1,574.21 ILOTAL: $1,051,050.67 I I