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Addendum No. 1November 24, 2021Project #2106Project Name: Tri-Valley Early Learning Center – Phase IIBid Date & Time: December 9th, 2021 @ 2:00 PM CSTConstruction Budget: 11,300,000SCOPE OF THIS ADDENDUM:To all bidders and all others to whom drawings and specifications have been issued by CO-OP Architecture.Acknowledge receipt of this addendum by listing its number and date in the bidders Form of Proposal. Failure todo so may subject bidder to disqualification. This Addendum forms a part of the Contract Documents.It modifies them as follows:GENERAL ITEMS:1.2.Attached is the project schedule.Description of Alternates:a. Alternate#1 – Outdoor Classroom (Add Alternate)Add note that this includes all patio, electrical lighting and wall mounted marker boards. Stoopswill be included with Base bid.REVISIONS TO DRAWINGS:1.2.Sheet D101 Keynotes:a. 2.15 – stoop tops will be left off. Stoops already poured can remain unless needed for routing ofunderground utilities. Remove portions of top of foundations to all for floors slabs to carrythrough at new openings along the east wall of Kitchen 138.b. 2.23 – precast seat wall will not be installed, not applicable.c. 2.24/2.36 – omit these notes at room 111C. This is being change ordered into Phase 1.d. 2.27 – won’t be built, not applicable.e. 2.39 – will not be installed, not applicable.f. 2.56 – storefronts will not be installed where shown to be removed, demo not applicable.g. 2.57 – metal panels will not be installed, demo not applicable.h. 2.58 – fins won’t be installed, demo not applicable.i. 2.59 – brick and sill won’t be installed, demo not applicable.j. 2.60 – door will not be installed, door is furnished by Phase 1, but installed by Phase 2k. 2.61 – benches will not be installed, demo not applicable.Sheet D102 Keynotes:l. 2.17 – signage will not be installed, demo not applicable.m. 2.57 – metal panels will not be installed, demo not applicable.n. 2.62 – ledge will not be installed, demo not applicable.o. 2.63 – flashing will not be installed, demo not applicable.Page 1 of 2

REVISIONS TO SPECIFICATIONS:1.126613 Telescoping Bleachersa. 2.02 A. 6. Operation: Change from Manual to Motorized.2.105126 Plastic Lockersa. 2.03 B. Lockers do not need be tested in accordance with NFPA 286.CIVIL ITEMS:None at this time.STRUCTURAL ITEMS:None at this time.MECHANICAL & ELECTRICAL ITEMS:See the attached “Addendum #1” from West Plains Engineering dated 11-24-21.END OF ADDENDUM NO. 1Page 2 of 2

IDTask NameDurationStart1TaskModeBid Opening1 dayThu 12/9/21 Thu 12/9/212Contracts Awarded10 daysMon 12/13/21Fri 12/24/213Permit and Plan Review15 daysMon 12/13/21Fri 12/31/214Mobilization1 dayThu 12/16/21 Thu 12/16/215Surcharge8 daysFri 12/17/21 Tue 12/28/216Rebar Shop Drawings and Production70 daysMon 12/27/21Fri 4/1/227Anchor Bolt Shop Drawing and Production70 daysMon 12/27/21Fri 4/1/228Precast Shop Drawings and Production150 daysMon 12/27/21Fri 7/22/229Structural Steel Shop Drawings and Production115 daysMon 12/27/21Fri 6/3/2210Bar Joist and Decking Shop Drawings and Production 180 daysMon 12/27/21Fri 9/2/2211Mobilization1 dayFri 4/1/2212Surcharge Removal9 daysMon 4/4/22 Thu 4/14/2213Rebar Delivery1 dayMon 4/4/22 Mon 4/4/2214Foundation Excavation12 daysMon 4/11/22 Tue 4/26/2215Foundations38 daysMon 4/18/22 Wed 6/8/2216Backfill and Interior Rough Grading24 daysMon 5/9/22 Thu 6/9/2217Underground Rough-In40 daysMon 5/16/22 Fri 7/8/2218Interior Shallow Footings8 daysWed 6/8/22 Fri 6/17/2219Utilities3 daysMon 6/13/22 Wed 6/15/2220CMU52 daysMon 6/13/22 Tue 8/23/2221Slab on Grade20 daysMon 6/20/22 Fri 7/15/2222Structural Steel Erection18 daysWed 7/6/22 Fri 7/29/2223Structural Steel Stud Framing and Sheathing25 daysMon 7/11/22 Fri 8/12/2224Precast6 daysMon 7/25/22 Mon 8/1/2225Bar Joist and Decking Delivery1 dayMon 9/5/22 Mon 9/5/2226Bar Joist and Decking30 daysTue 9/6/2227Brick60 daysWed 8/3/22 Tue 10/25/2228Air Barrier15 daysWed 8/10/22 Tue 8/30/2229Slab on Deck2 daysTue 9/20/22 Wed 9/21/2230Glue-Lam Construction16 daysWed 8/24/22 Wed 9/14/2231Parapet18 daysMon 10/10/22Wed 11/2/2232Roofing38 daysMon 10/24/22Wed 12/14/2233MEP Rough-In65 daysThu 11/17/22 Wed 2/15/2334Aluminum Windows and Doors20 daysWed 12/7/22 Tue 1/3/2335Metal Wall Panels2 daysMon 11/28/22Tue 11/29/2236Drywall42 daysThu 1/19/23 Fri 3/17/2337Paint40 daysMon 3/13/23 Fri 5/5/2338Gym Equipment and AWP15 daysMon 4/10/23 Fri 4/28/2339Tile20 daysMon 4/10/23 Fri 5/5/2340MEP Trim-Out60 daysMon 4/10/23 Fri 6/30/2341Acoustical Ceiling36 daysMon 5/1/23 Mon 6/19/2342Gym Wood Floor30 daysMon 5/1/23 Fri 6/9/2343Flooring37 daysTue 5/23/23 Wed 7/12/2344Exterior Concrete5 daysMon 5/1/23 Fri 5/5/2345Turf Field15 daysMon 5/8/23 Fri 5/26/2346Bleachers5 daysMon 6/19/23 Fri 6/23/2347Specialties/Equipment17 daysThu 6/15/23 Fri 7/7/2348Final Grading10 daysMon 5/29/23 Fri 6/9/2349Doors and Hardware20 daysThu 6/22/23 Wed 7/19/2350Casework20 daysThu 6/22/23 Wed 7/19/2351Seeding5 daysMon 6/12/23 Fri 6/16/2352Startup, Testing, Balancing10 daysThu 7/20/23 Wed 8/2/2353Final Cleaning5 daysMon 7/10/23 Fri 7/14/2354Punchlist9 daysMon 7/17/23 Thu 7/27/2355Owner Training1 dayWed 7/26/23 Wed 7/26/2356Substantial Completion1 dayFri 7/28/23Fri 7/28/2357Final Completion1 dayFri 8/11/23Fri 8/11/23Project: Tri-Valley ELC Phase 2Date: Fri 11/12/21FinishDec 5,May'2222,May'2229,Jun Jun l'2316,Jul'2323,Jul'2330,Aug'236, FSSMTWTFSSMTWTFSSFri 4/1/22Mon 10/17/22TaskMilestoneProject SummaryExternal MilestoneInactive MilestoneManual TaskManual Summary RollupStart-onlyDeadlineCritical SplitSplitSummaryExternal TasksInactive TaskInactive SummaryDuration-onlyManual SummaryFinish-onlyCriticalProgressPage 1

PHASE 2 - ADDENDUM #1SIOUX FALLS4609 S. Techlink CirclePh: (605) 362-3753Date:November 24, 2021To:COOP ArchitectsFrom:Jon Kennedy, Stu OsterWPE#: BS20045Project:Tri-Valley Early Learning Center – Phase IILocation: Crooks, SDTO:Sioux Falls, SD 57106Fax (605) 362-3759All prime contract bidders and all others to whom Drawings and Specifications have been issued by the Engineer. Acknowledge receipt of the Addendum byinserting its number and date on the Bid Form. Failure to do so may subject bidder to disqualification. This Addendum forms a part of the Contract Documents.It modifies them as follows:PRODUCT APPROVALS:The manufacturers and products, which are listed in the following texts, are approved for bidding. Final acceptance is contingent upon receipt andapproval of final shop drawings. Manufacturer shall conform to all warranties, performances, size, etc., as the item specified. The burden of proof of themerit of the proposed substitution is upon the proposer. Those items not specifically listed by addendum shall not be approved for NVariable Frequency ControllersInstrumentation & Controls for HVACHVAC Power Ventilators233700Louvers233700236420237220Roof HoodsAir Cooled Water ChillersCustom Indoor Air Handling Units238101238101238101238129Unit HeatersCabinet Unit HeatersHydronic Radiant Ceiling PanelsDuct-Free Split SystemsMANUFACTURERSchneider Electric – Alternate #4 OnlySchneider Electric – Alternate #4 OnlyPennBarryAeroventNCADowcoArrowAcmeYork – Alternate #3 OnlyYork – Alternate #3 OnlyVTS – Alternate #3 OnlyModineModineTWALennoxSamsungMECHANICAL SPECIFICATIONS:Section 230910 / 230913 / 230993 TEMPERATURE CONTROLS1. The following is issued for clarification:a. See Description of Bid Alternates in front end specifications for description of base and alternate #4 bid for temperaturecontrols work.Section 236420 AIR COOLED WATER CHILLERS1. The following is issued for clarification:a. See Description of Bid Alternates in front end specifications for description of base and alternate #3 bid for providingchiller CH-2 on this project.RAPID CITY, SDSIOUX FALLS, SDBISMARCK, NDCASPER, WYCEDAR RAPIDS, IA

Section 237220 CUSTOM INDOOR AIR HANDLING UNITS1. The following is issued for clarification:a. See Description of Bid Alternates in front end specifications for description of base and alternate #3 bid for providing airhandling units AHU-5, 6, 7, and 8 on this project.Section 271000 STRUCTURED CABLING1. The following is issued for clarification:a. Section 1.05 Submittals: omit Registered Communications Distribution Designer (RCDD) requirements. Shopdrawings and installation shall be completed by a BICSI registered technician (TECH). Installers shall also be certifiedby the manufacturers being installed. Provide copies of BICSI and manufacturers certifications.ELECTRICAL SPECIFICATIONS:Section 274133 MASTER ANTENNA TELEVISION SYSTEMS1. Delete this section in its entirety.ELECTRICAL DRAWINGS:Sheet E403A – FIRST FLOOR COMMUNICATION PLAN – PHASE 2 – AREA A1. Reference attached drawing for revisions.Sheet E403B – FIRST FLOOR COMMUNICATION PLAN – PHASE 2 – AREA B1. Reference attached drawing for revisions.Sheet E403C – FIRST FLOOR COMMUNICATION PLAN – PHASE 2 – AREA C1. Reference attached drawing for revisions.Sheet E404A – SECOND FLOOR COMMUNICATION PLAN – PHASE 21. Reference attached drawing for revisions.Sheet E501 – ELECTRICAL DIAGRAMS1. Refer to the Technology Riser Diagram;a. Delete all references to coaxial cable and television outlets.b. Specific note E522, conduits shall be stubbed up wall to accessible ceilings in space. Cabling installation aboveaccessible ceiling shall be neatly bundled in j-hooks to cable tray.Sheet E502 – ELECTRICAL DIAGRAMS1. Refer to Schematic Door Access Diagram;a. Electrical Contractor to provide cabling only for system. Cabling shall be installed in conduits to above accessibleceiling and then neatly bundled above accessible ceilings and through cable tray.2. Refer to Schematic IP Video Surveillance (CCTV) System Diagram;a. Electrical Contractor to provide cabling only for system. Cabling shall be installed in conduits to above accessibleceiling and then neatly bundled above accessible ceilings and through cable tray.End of Document