Okaloosa County BOCC — December 1, 2015 — 8) Addendum 2

ARBENNIE PRITCHETT WRF EXPANSION DESIGN-BUILD PROJECT DATE: April 26, 2015 RFP #: WS 01-15 ADDENDUM NO. 2 TO THE RFQ DOCUMENTS: Request for Proposals Arbennie Pritchett WRF Expansion Design-Build Project Okaloosa County Water and Sewer System Okaloosa County, Florida To All Document Holders: The following modifications, additions, and or deletions are hereby made a part of the Request for Proposals for the Arbennie Pritchett Water Reclamation Facility Expansion Design-Build Project, RFP # WS 01-15 as fully and completely as if the same were fully set forth therein: Procurement Documents – Volume II DCP Section 3.7.8.1 General a. Page 3-81, Table Section UV Disinfection, Column heading labeled: DESCRIPTION, REPLACE “Electromagnetic Flow Meter” WITH “In Channel UltraSonic Flow Meter”. b. Page 3-81, Table Section UV Disinfection, Column heading labeled: MANUFACTURER, REPLACE “Foxboro, Rosemount, ABB/Fischer &Porter” WITH “Accusonic Technologies Model 7510+C8HOMOAC per Submittal No. M-13315-001 of Original Arbennie Pritchett WRF DB Project, or Approved Equal”. c. Page 3-81, Table Section UV Disinfection, Column heading labeled: MANUFACTURER, REPLACE the Blank cell of this table WITH “Ozonia North America UV Aquaray 40 HO VLS System per Submittal No. M-11261-001 of Original Arbennie Pritchett WRF DB Project, or Approved Equal”. Section 2.2.1.2 Oxygen Delivery System a. Page 2-5, Second Main Bullet, DELETE this bullet that begins with “Aeration equipment shall be …” Section 1.2.1 Wastewater Treatment Plant Influent Characterization a. Page 1-2, Table 1-1. The Influent alkalinity is confirmed to be 125 mg/L. Section 2.2.1.2 Oxygen Delivery System ADDENDUM NO. 2 Project No. 100557 Revised: 4/26/2015 1  ARBENNIE PRITCHETT WRF EXPANSION DESIGN-BUILD PROJECT a. Page 2-4, Slow –Speed Mechanical Surface Aerators, DELETE the Rows entitled 2, 3, 4, under the Column Heading labeled: DESIGN POINT. b. Page 2-4, Slow –Speed Mechanical Surface Aerators, Column Heading labeled: DESIGN POINT, REPLACE “Max.” WITH “Design”. c. Page 2-4, Slow –Speed Mechanical Surface Aerators, Column Heading labeled: EVALUATED FACTOR, REPLACE “0.05.” WITH “1.0”. d. Page 2-4, Slow –Speed Mechanical Surface Aerators, CHANGE “Column Heading labeled: PLANT AIR FLOW (SCFM)” WITH “Column Heading labeled: PLANT OXYGEN DEMAND (pounds per day)”. e. Page 2-4, Slow –Speed Mechanical Surface Aerators, in the Row labeled “A” under Column Heading labeled: DESIGN POINT, REPLACE “Guaranteed Total Factored Power Draw (kW) = (1+2+3+4)” WITH “Guaranteed Total Factored Power Draw (kW)”. f. Page 2-4, Slow –Speed Mechanical Surface Aerators, in the Row labeled “C” under Column Heading labeled: DESIGN POINT, REPLACE “$0.10” WITH “$0.08”. Section 2.2.2.1 Secondary Clarifier Basin a. Page 2-9, DELETE in its entirety, the first Paragraph that begins with “One clarifier shall be…” and REPLACE it with ”One clarifier shall be provided equal in size as the two existing clarifiers. The circular secondary clarifier shall be provided and constructed of cast-in-place or pre-stressed concrete and a perimeter V-notch weir and launder shall be provided equal in size and design as the two existing clarifiers. The new clarifier shall have the capacity to convey a peak hourly flow of no less than 18.75 mgd, based on the assumption that one of three clarifier units is out of service (two operational) during the p