Consideration of Change Order #1 – Tricon Construction Group, Water Treatment Plant Upgrade – Motion to Approve

CONSTRUCTION BULLETIN No.1 REQUEST FOR PROPOSAL CONTRACTOR: PROPOSAL REQUEST NO.: 1 Tricon General Construction, Inc. DATE OF ISSUANCE: 04-23-2025 746 58th Ave Ct., SW Cedar Rapids, IA 52404 CONTRACT FOR: OWNER: City of Tiffin CONTRACT DATED: 300 Railroad St Tiffin, IA 52340 ENGINEER'S PROJECT NO: R013603021 PROJECT: ENGINEER: MSA Professional Services, Inc. City of Tiffin (Name and Address) 400 Ice Harbor Dr, Ste 110 Water Treatment Plant Dubuque, IA 52001 Upgrade Please submit an itemized proposal for changes in the Contract Sum and Contract Time for proposed modifications to the Contract Documents described herein. Submit proposal within 10 business days or notify the Engineer in writing of the date on which you anticipate submitting your proposal. THIS IS NOT A CHANGE ORDER, A CONSTRUCTION CHANGE DIRECTIVE OR A DIRECTION TO PROCEED WITH THE WORK DESCRIBED IN THE PROPOSED MODIFICATIONS. Description: Changes to the System Integrator Procurement Contract Documents. Please provide proposal to provide the following changes to the System Integrator contract, installation and labor is not anticipated to impact on the general construction contract. Because these items are included in the general construction contract: Additions:  20-LP-1A lighting panel modifications (breakers, increase main breaker size)  20-LP-1B lighting panel modifications (breakers)  30-LP-1 lighting panel modifications (breakers)  Add aerator pit heater – breaker bucket with contactor in 20-MCC-1A (could use spare breaker without contactor)  Moved PLC input from well 4 level transducer from 10-SCC-1 to 20-SCC-1 as a new input (it was determined this was not already installed by owner)  Add Pre-Chlorine chemical flow meters - (2) PLC I/O + programming to 10-SCC-1  Add fluoride chemical scale - (1) PLC I/O + programming to 10-SCC-1  Add (2) fluoride chemical pumps - (8) PLC I/O + programming to 10-SCC-1  Add fluoride chemical flow meters - (2) PLC I/O + programming to 10-SCC-1  Add post chlorine and caustic chemical flow meters - (4) PLC I/O + programming to 20-SCC-1  Add fluoride temperature probe - instrument, (1) PLC I/O + programming to 10-SCC-1  Add Storage room occupancy sensor – instrument, (1) PLC I/O + programming to 10-SCC-1  Add fluoride room door switch – instrument, (1) PLC I/O + programming to 10-SCC-1  Add fluoride room fan/light control station – instrument, (2) PLC I/O + programming to 10-SCC-1  Add fluoride room fan/damper control – power relays, (2) PLC I/O + programming to 10-SCC-1  Add fluoride room light control – power relay + programming to 10-SCC-1 G:\13\13603\13603021\Documents\CONSTRUCTION BULLETINS\CB # - SYSTEM INTEGRATION ITEMS\13603021 TIFFIN WTP CB# Proposal Request 2025-04-22.docx