JERRY L. DEMINGS

NICOLE H. WILSON

CHRISTINE MOORE

MAYRA URIBE

MARIBEL GOMEZ CORDERO

COUNTY MAYOR

DISTRICT 1

DISTRICT 2

DISTRICT 3

DISTRICT 4

DISTRICT 5

DISTRICT 6

COUNTY COMMISSIONERS:

BOARD OF

KELLY MARTINEZ SEMRAD

MICHAEL "MIKE" SCOTT

ORANGE COUNTY, FLORIDA

UTILITIES SOLID WASTE MANAGEMENT DIVISION

Bid Documents

Phone 407-836-5635 Orlando, FL 32801 400 E South ST IOC II, 2nd Floor Orange County Procurement Division this project contact:

For Information regarding

December 2025

PHASE 2

CELL 9-12 LANDFILL CLOSURE

Project No. D3661000

FOR

TECHNICAL SPECIFICATIONS

UTILITIES SOLID WASTE DIVISION

ORANGE COUNTY, FLORIDA

BIDDING REQUIREMENTS

AND

CONTRACT DOCUMENTS

for the construction of the

CELL 9-12 LANDFILL CLOSURE

PHASE 2

DECEMBER 2025

Project No. D3661000 Copy No. _____

Orange County Cell 9-12 Landfill Closure Phase 2

PW\JA\ORANGE COUNTY FL\D3661000 TABLE OF CONTENTS

DECEMBER 15, 2025 00 01 10 - i

TABLE OF CONTENTS

Pages

TECHNICAL SPECIFICATIONS

DIVISION 01—GENERAL REQUIREMENTS

01 11 00 Summary of Work.................................................................... 1- 11 Supplement 1, Contractor’s Verification of the Accuracy of Drawings and Specifications.................................................... 1- 1

01 26 57 Change Order Procedures ........................................................ 1- 3 Supplement 1, Contract Clarification/Interpretation Request Form (CCIR) ............................................................................ 1- 1 Supplement 2, Work Change Directive ................................... 1- 2 Supplement 3, Change Order Form ......................................... 1- 1 Supplement 4, Field Order by Resident Project Representative (RPR)............................................................... 1- 2 Supplement 5, Request for Proposal (RFP) ............................ 1- 2 Supplement 6, Change in Contract Summary Form ................ 1- 1

01 29 00 Measurement and Payment ...................................................... 1- 9 01 29 73 Schedule of Values .................................................................. 1- 3 01 29 75 Applications for Payments ....................................................... 1- 4

Supplement 1, Estimate for Progress Payment ........................ 1- 62 Supplement 2, Materials Stored on Site ................................... 1- 1 Supplement 3, Partial Waiver of Lien ...................................... 1- 1 Supplement 4, Waiver of Lien ................................................. 1- 1 Supplement 5, Notice of Acceptance and Recommendation for Final Payment ..................................................................... 1- 1

01 31 13 Project Coordination ................................................................ 1- 15 Supplement 1, Contractor’s Verification of the Accuracy of the Drawings and Specifications ......................................... 1- 1

01 31 19 Project Meetings ...................................................................... 1- 5 01 32 00 Progress Schedules................................................................... 1- 9 01 32 13 Construction Field Office ........................................................ 1- 4 01 32 15 Construction Photographs ........................................................ 1- 3 01 32 23 Surveying ................................................................................. 1- 6

Supplement 1, Exhibit 1: Pre-Construction Survey Limits ..... 1- 1 01 33 00 Submittals ................................................................................ 1- 4

Supplement 1, Contractor’s Shop Drawing Certification Stamp ....................................................................................... 1- 1 Supplement 2, Submittal Review Comments .......................... 1- 1

01 33 40 Web-Based Project Controls System ....................................... 1- 6 01 35 00 Health and Safety Requirements .............................................. 1- 4 01 35 13 Special Project Procedures ....................................................... 1- 12

Pages

TABLE OF CONTENTS PW\JA\ORANGE COUNTY FL\D3661000

00 01 10 - ii DECEMBER 15, 2025

01 41 26 Permits ..................................................................................... 1- 2 01 42 13 Abbreviations ........................................................................... 1- 5 01 43 00 Quality Control ........................................................................ 1- 3 01 43 33 Manufacturers’ Services .......................................................... 1- 4

Supplement 1, Manufacturer’s Certificate of Proper Installation................................................................................ 1- 1 Supplement 2, Manufacturer’s Certificate of Compliance ...... 1- 1

01 45 29 Testing and Testing Laboratory Services ................................ 1- 4 01 50 00 Construction Facilities and Temporary Controls ..................... 1- 7 01 57 13 Temporary Erosion and Sedimentation Control ...................... 1- 4 01 60 01 Common Product Requirements .............................................. 1- 8 01 77 00 Contract Closeout..................................................................... 1- 8

Supplement 1, Supplement 1, Punch List ................................ 1- 1 Supplement 2, Supplement 2, Certificate of Substantial Completion ............................................................................... 1- 1

01 78 23 Operation and Maintenance Manuals and Data ....................... 1- 7 Supplement 1, Maintenance Summary Form ........................... 1- 2

01 88 15 Anchorage and Bracing............................................................ 1- 4

DIVISION 02—EXISTING CONDITIONS

02 41 00 Demolition ............................................................................... 1- 2

DIVISION 03—CONCRETE

03 30 10 Structural Concrete .................................................................. 1- 11 Supplement 1, Concrete Mix Design, Class 4500F1S1P1C1 .. 1- 1

DIVISION 04—MASONRY (NOT USED)

DIVISION 05—METALS

05 05 19 Post-Installed Anchors ............................................................. 1- 5 05 05 23 Welding .................................................................................... 1- 4

Supplement 1, Welding and Nondestructive Testing Table .... 1- 1 05 50 00 Metal Fabrications ................................................................... 1- 9

DIVISION 06 THROUGH DIVISION 08 (NOT USED)

DIVISION 09—FINISHES

09 90 00 Painting and Protective Coatings ............................................. 1- 12 Supplement 1, Paint System Data Sheet (PSDS) ..................... 1- 1 Supplement 2, Paint Product Data Sheet (PPDS) .................... 1- 1

DIVISION 10 THROUGH DIVISION 25 (NOT USED)

PW\JA\ORANGE COUNTY FL\D3661000 TABLE OF CONTENTS

DECEMBER 15, 2025 00 01 10 - iii

DIVISION 26—ELECTRICAL

26 05 01 Electrical .................................................................................. 1- 19 Supplement 1, Example Arc Flash Label ................................ 1- 1

26 05 26 Grounding ................................................................................ 1- 5 26 20 00 Low-Voltage AC Induction Motors ......................................... 1- 7 26 43 00 Surge Protective Devices ......................................................... 1- 5 26 44 00 Electrical Testing ..................................................................... 1- 13

DIVISION 27THROUGH DIVISION 30 (NOT USED)

DIVISION 31—EARTHWORK

31 10 00 Site Clearing............................................................................. 1- 2 31 23 33 Excavation, Trenching, Backfilling and Embankment ............ 1- 19 31 26 20 Fabric Formed Concrete Revetment System (FFCRS) ............ 1- 5 31 32 19.16 Geotextiles ............................................................................... 1- 7

DIVISION 32—EXTERIOR IMPROVEMENTS

32 11 23 Base Course ............................................................................. 1- 3 32 92 19.16 Sodding, Seeding and Mulching .............................................. 1- 8

DIVISION 33—UTILITIES

33 05 01.15 Linear Low Density Polyethylene (LLDPE) Geomembrane Liner ............................................................... 1- 25 Supplement 1, Geomembrane Installer's Certification of Subsurface Acceptability ......................................................... 1- 1

33 46 16.20 Terrace Underdrain Systems .................................................... 1- 4 33 46 23.19 Composite Drainage Net (CDN) .............................................. 1- 17

DIVISION 34 THROUGH DIVISION 39 (NOT USED)

DIVISION 40—PROCESS INTERCONNECTIONS

40 05 15 Piping Support Systems ........................................................... 1- 5 40 27 00 Piping – General ...................................................................... 1- 15

Supplement 1, Piping Schedule Legend .................................. 1- 1 Supplement 2, Piping Schedule ............................................... 1- 1

40 27 00.10 Polyvinyl Chloride (PVC) Pipe and Fittings– General Service ........................................................................ 1- 1

40 27 00.14 High Density Polyethylene (HDPE) Pipe ................................ 1- 2 40 27 00.22 High Density Polyethylene Pipe and Fittings Letdown

Pipes and Culverts.................................................................... 1- 8

TABLE OF CONTENTS PW\JA\ORANGE COUNTY FL\D3661000

00 01 10 - iv DECEMBER 15, 2025

40 27 00.24 High Density Polyethylene (HDPE) Pipe and Fittings for Gas Management System ................................................... 1- 14

40 27 02 Valves and Operators ............................................................... 1- 6 40 27 03 Gas Extraction Wellheads ........................................................ 1- 6 40 27 05 Landfill Gas (LFG) System Valves ......................................... 1- 6 40 80 01 Piping Leakage Testing............................................................ 1- 2 40 99 90 Package Control Systems ......................................................... 1- 15

Supplement 1, 44 42 56.04 – B1 Data Sheets: Pump and Motor, Primary Leachate Collection Pumps ........................... 1- 2 Supplement 2, 44 42 56.04 – B2 Data Sheets: Pump and Motor, Secondary Leachate Detection Pumps ......................... 1- 2

DIVISION 41 THROUGH DIVISION 43 (NOT USED)

DIVISION 44—POLLUTION AND WASTE CONTROL EQUIPMENT

44 42 56.01 Controllerless Pneumatic Pumps ............................................. 1- 8 Supplement 1, Data Sheets: Landfill Gas Condensate Sump Pumps ....................................................................................... 1- 2

44 42 56.04 Submersible Leachate Collection and Detection Pumps ......... 1- 8

DIVISION 45 THROUGH DIVISION 49 (NOT USED)

ATTACHMENTS

A FDEP Notice of Permit Modifications for Operations and Sequential Closure of Cells 9-12 Class I Landfill, Orange County, Florida

B Cell 9-12 Class I Landfill Phase 2 Closure Construction Quality Assurance Plan, Orange County, Florida

C Excerpts from Geotechnical Report in Support of Permit Application for Operations and Sequential Closure of Cells 9-12 Class I Landfill, Orange County, Florida

DRAWINGS (BOUND SEPARATELY)

END OF SECTION

TECHNICAL

SPECIFICATIONS

PW\JA\ORANGE COUNTY FL\D3661000 SUMMARY OF WORK

DECEMBER 11, 2025 01 11 00 - 1

SECTION 01 11 00

SUMMARY OF WORK

PART 1 GENERAL

1.01 LOCATION OF WORK AND CONTRACT PARTS

A. The Project is located at the Orange County Solid Waste Management Facility (OCSWMF) in east Orange County at the terminus of Young Pine Road approximately 3 miles southwest of the intersection of Curry Ford Road and Dean Road. The Project address is 5901 Young Pine Road, Orlando, Florida 32829.

B. The Work in this Contract is divided into two parts as follows:

1. PART A - Construction of Cell 9-12 Landfill Closure Phase 2 to the limits shown on the plans.

2. PART B - Construction of Electrical and Mechanical Improvements for Bays 8-13 (Cell 10) as shown on the plans (Additive Item).

1.02 WORK COVERED BY CONTRACT DOCUMENTS

PART A- CELL 9-12 LANDFILL CLOSURE PHASE 2

A. The Contractor shall furnish all labor, materials, equipment, tools, services and incidentals to complete all Work required by these Contract Documents, Technical Specifications and Drawings for construction of Part A - Cell 9-12 Landfill Closure Phase 2.

B. See Section 01 31 13, Project Coordination, Article 1.05, Sequence of Work for additional information.

C. The Phase 2 closure area is generally located on the lower, mid- and top slopes of Cell 9-11, adjacent to and south of the Cell 9 Phase 1 closed area.

The limits of the existing closed Phase 1 area, and the proposed Phase 2 final closure cover areas are depicted on the Drawings. An updated topographic survey of the Phase 2 closing area shall be performed by the Contractor prior to construction and submitted to the County for the Engineer to update the final Phase 2 closure grading plans. Estimated volumes for solid waste cut, 6-inch-thick leveling course and 24-inch granular fill protective cover will be determined and agreed to between the County and the Contractor prior to start of construction.

SUMMARY OF WORK PW\JA\ORANGE COUNTY FL\D3661000

01 11 00 - 2 DECEMBER 11, 2025

D. The Contractor shall protect the intermediate cover, interim LFG collection system, and interim stormwater piping in the areas adjacent to the Phase 2 closure throughout the construction period and shall repair and restore damages caused by the Contractor’s activities. The Contractor shall document damages and notify the Engineer, and schedule immediate repair and restoration of the existing LFG system, stormwater piping and intermediate cover and sod to original or better condition if parts of the adjacent area are damaged by the Contractor or by of his material suppliers, subcontractors or other associates.

E. Terminal stormwater structures at the base of the landfill were installed during construction of the landfill base liner system where the new secondary stormwater pipes from the proposed Phase 2 side slope closure are to be connected. The new secondary stormwater letdown pipes are also proposed to be connected to the termination pipes on existing inlets located along the interface line with the top of Phase 1 closed area as shown on the plans. The termination of Phase 1 closure geomembrane liner (barrier layer) was marked by installation of bollards at approximately 200-foot spacing. The Contractor shall be responsible to locate the existing Phase 1 liner termination trench along the interface with Phase 2 closure. The Contractor shall remove and discard damaged liner along the interface line before welding the Phase 2 geomembrane for a continuous barrier layer. Bidders shall assume the first 10 feet of the existing Phase 1 geomembrane shall be discarded and replaced with new 40-mil LLDPE geomembrane. The cost to the Contractor for replacing the initial 10-foot-wide strip shall be included in the Lump Sum portion of the bid. Additional replacement of damaged Phase 1 geomembrane beyond the initial 10-foot-wide strip shall be compensatory as part of the Unit Price portion of the Contract.

F. The existing vertical LFG wells and horizontal LFG collectors are to be connected to the active LFG collection system as shown on the Drawings.

Interim LFG collection piping installed to collect the gas during operations shall be removed and replaced with permanent new LFG collection piping above the geomembrane liner system as shown on the Drawings. Existing interim LFG collection piping shall be buried in place or removed, and shall not be reused for the above the liner collection system. Portions of the existing perimeter LFG transmission pipe and condensate sumps are proposed to be repurposed and a new transmission pipe and condensate sumps are to be installed. The transmission pipe repurposing is limited to the pipe along the east, north and west perimeter of Cells 9-10 area as shown on the plans. The new LFG transmission pipe is proposed to be installed on the Phase 1 closed side slopes and covered with granular fill and sod as shown on the plans.

Damage to the existing geomembrane final cover in Phase 1 closed area shall be repaired by the Contractor, vacuum tested and documented. Temporary access by the Contractor on the Phase 1 closed areas is to be restored to equal or better conditions. The cost to the Contractor for potential repair caused by

DECEMBER 11, 2025 01 11 00 - 3

the Contractor’s activities shall be included in the Lump Sum portion of the bid. The cost to the Contractor for repair of geomembrane in Phase 1 closed area discovered during excavation, but not caused by the Contractor shall be compensatory based on the Unit Price portion of the bid.

G. Interim stormwater pipes to drain the open side slopes have been installed and connected to the permanent terminal structures on the east, west and north edges of Cell 9-10. The interim stormwater piping on the side slopes within the Phase 2 closing area shall be removed and replaced with the new piping and structures on top of the Phase 2 closure liner system for the permanent secondary stormwater system as shown on the Drawings. The new stormwater letdown pipes are proposed to be connected to the Phase 1 secondary stormwater pipes and inlets along the interface line.

H. A portion of the existing primary stormwater ditch along the east and west sides of Cell 9-12 shall be restored to the permitted ditch profile as shown on the plans. The work includes locating and protecting the underground piping and stormwater structures within the designated primary ditch restoration area, removing the top 12 inches of existing fill and transporting the fill to the working face of the landfill, installing a minimum of 12 inches of granular fill graded to the permitted grades and profiles shown on the Drawings, grading the ditches for positive flow to the existing stormwater culverts and discharge structures, replace inlets and culverts if damaged by the Contractor’s activities, and sodding all disturbed areas. The ditch restoration by the Contractor includes protecting existing ditch culverts from damage, and rebuilding and restoring all the Mitered End Sections (MES) on both sides of all culverts within the ditch restoration area as shown on the plans and specified.

I. The Contractor shall perform construction related to the Part A - Phase 2 sequential closure complete and in accordance with the construction Contract Documents, Drawings and Specifications, and specific conditions of the operations and closure permit issued by the Florida Department of Environmental Protection (FDEP.) A copy of the FDEP permit is included and made part of the Contract Documents.

J. All materials, equipment, skills, tools and labor which are reasonable and properly inferable and necessary for the proper completion of the Work in a substantial manner and in compliance with the requirements stated or implied by the Contract Documents, Specifications or Drawings shall be furnished and installed by the Contractor without additional compensation, whether or not specifically indicated in the Contract Documents.

01 11 00 - 4 DECEMBER 11, 2025

K. The Contractor shall protect the intermediate cover, interim LFG collection system, and interim stormwater piping in the adjacent areas to the Phase 2 closure throughout the construction period and shall repair and restore damages caused by the Contractor’s activities. The Contractor shall document damages and notify the Engineer and schedule immediate repair and restoration of the existing LFG system, stormwater piping and intermediate cover and sod to original or better condition if parts of the adjacent area are damaged by the Contractor or their material suppliers, subcontractors or other associates.

L. The Contractor shall comply with all Municipal, County, State, Federal, and other codes, which are applicable to the proposed construction work.

PART B - ELECTRICAL AND MECHANICAL IMPROVEMENTS FOR

BAYS 8-13 (CELL 9-10)

A. This portion of the work shall be performed as an additive item if authorized by the County at the time of Contract Award.

B. The completed Work shall provide the County with upgraded electrical and mechanical systems for the primary and secondary leachate pumping systems in Bays 8 through 13 of Cell 9-10 of the Orange County Landfill as shown on the Drawings and as specified.

C. The sizes and quantities stated in the Contract Documents are approximations intended to provide the Contractor an indication of the project size and complexity. Neither the County nor the Engineer express, imply, or guarantee that the actual amount of Work to be accomplished will correspond to the quantities given.

D. See Section 01 31 13, Project Coordination, Article 1.05, Sequence of Work for additional information.

E. The Contractor shall perform construction related to the Part B Phase 2 sequential closure complete and in accordance with the Contract Documents, Drawings and Specifications, and specific conditions of the operations and closure permit issued by the Florida Department of Environmental Protection (FDEP.) A copy of the FDEP permit is included and made part of the Contract Documents.

F. Materials, equipment, skills, tools and labor which are reasonable and properly inferable and necessary for the proper completion of the Work in a substantial manner and in compliance with the requirements stated or implied by the Contract Documents, Specifications or Drawings shall be furnished and installed by the Contractor without additional compensation, whether or not specifically indicated in the Contract Documents.

DECEMBER 11, 2025 01 11 00 - 5

G. The Contractor shall comply with Municipal, County, State, Federal, and other codes, which are applicable to the proposed construction work.

1.03 GENERAL DESCRIPTION

A. The sequential closure cover installation work of this Project is limited to the area defined by the limit of closure as delineated on the Drawings. The Work consists of construction of the closure cover system for a portion of the Cell 9-12 active landfill as shown on the Drawings and specified in accordance with the Contract Conditions, permits and quality assurance.

B. An area south of Cell 11 is designated as the laydown area for the Contractor to set up field offices and store fill material and other construction materials and supplies. The open area on top is also available to the Contractor to store construction materials and equipment within the construction limit area predicated the area is restored prior to substantial completion. The Contractor shall document the condition of the Site prior to construction activities and shall restore the Site to original or better condition as part of substantial completion. Documentation includes aerial photos, pictures or video of the condition of the laydown area.

C. The Contractor shall complete work required by the Contract Documents, Drawings and Specifications, and perform other incidental work for a complete Project whether specifically mentioned or not in accordance with the Drawings, Specifications, and Contract Documents.

D. The Contractor shall verify dimensions, quantities and details shown on the Plans, Supplementary Drawings, Schedules, Specifications and other data received from the Engineer, and shall notify the Engineer of errors, omissions, conflicts, and discrepancies found therein. Contractor shall complete and certify the Contractor Verification Form (attached to this section) at the pre-construction meeting.

E. Failure to discover or correct errors, conflicts or discrepancies shall not relieve the Contractor of full responsibility for unsatisfactory work, faulty construction or improper operation resulting therefrom nor from rectifying such conditions at their own expense. The Contractor shall not be allowed to take advantage of errors, or omissions, as full instructions will be furnished by the Engineer, should such errors or omissions be discovered.

F. Schedules are given for the convenience of the County, Engineer and Contractor and are not guaranteed to be complete. The Contractor shall assume responsibility for the making estimates of the size, kind, and quantity of materials and equipment included in Work to be done under the Contract.

01 11 00 - 6 DECEMBER 11, 2025

G. This Project is for sequential side slope closure of an active landfill. The County has filled solid waste to the proposed final elevation of the closure elevation less the cover thickness. The final cover system and the final grading plan are not intended to create additional disposal capacity within the proposed closure area other than filling depressed areas, and the fill volume required for closure cover installation, positive stormwater flow and landfill gas installations.

H. Work called for in the specifications applicable to this Contract, but not shown on the Plans in their present form, or vice versa, shall be of like effect as if shown or mentioned in both. Work not specified in either the Plans or in the specifications but involved in carrying out their intent or in the complete and proper execution of the Work, is required and shall be performed by the Contractor as though it were specifically delineated or described.

I. The apparent silence of the specifications as to detail, or the apparent omission from them of a detailed description concerning work to be done and materials to be furnished, shall be regarded as meaning that only the best general practice is to prevail and that only material and workmanship of the best quality is to be used, and interpretation of these specifications shall be made upon that basis.

J. In general, the work components for Part A of this Project include but are not limited to the following:

1. Prior to side slope grading work, obtain the services of a professional registered surveyor to perform a new topographic survey of the Project area as specified Section 01 32 23, Surveying. Submit the topographic survey to the Engineer to update the final closure grading plan based on the updated site conditions. Utilizing the updated final grading plans from the Engineer, perform a cut-fill computation to determine the volume of solid waste cut, and the volume of granular fill for the 6-inch leveling course and 24-inch-thick protective cover. Submit the calculated volumes to the County for the Engineer to confirm the volumes and final County and Contractor concurrence on these items.

Contractor shall dedicate the first 40 working days of the Contract for topo survey and agreement on the volumes of solid waste cut and offsite granular fill requirements. No field grading work shall be performed by the Contractor prior to County approval of the calculated volumes.

2. Clearing and grubbing of vegetation from the side slopes within the closure construction limits, grading and shaping the existing side slopes, cutting and re-grading of excess solid waste from the side slopes and filling in low depression areas of the side slope.

3. Preparation of the subgrade for installation of the leveling course, grading of terraces for proper stormwater flow, and installation of a 6-inch-thick granular fill leveling course on the proposed closure area.

DECEMBER 11, 2025 01 11 00 - 7

4. Exposing the existing bottom liner anchor trench and the Phase 1 closure final cover at the interface with the Phase 2 closure area and making repairs to the anchor trench 60-mil geomembrane as may be necessary, to weld the cover liner.

5. Installation of the barrier layer portion of the final cover system consisting of 40-mil textured LLDPE geomembrane, connection of the closure cover geomembrane to the bottom liner and Phase 1 closure final cover geomembrane, installation of CDN where indicated, installation of 24-inch-thick granular fill protective cover, and sodding.

6. Installation of underdrain system in terraces, installation of stormwater inlets and letdown piping and connection with the existing stormwater pipes, and other stormwater management piping and structures including installation of interim drainage pipes and temporary structures on the top open area for positive flow, final grading and construction of terrace swales with underdrain piping, concrete works at the inlets, and geomembrane drain flap on the Phase 2 closure terrace inlets at the downcomer pipe trench as shown on the Drawings.

7. Locating and protecting existing LFG wellheads and the existing interim collection piping throughout construction, installation of geomembrane boot for each wellhead, installation of new collection piping manifolds and laterals to tie in existing wellheads, connections to the existing active LFG collection system as indicated on the Drawings, coordination with the LFG Operator during connection activities to the LFG collection system, and protection of the new LFG collection piping during installation of protective cover and sodding.

8. Modification and relocation of existing LFG transmission pipe and condensate sumps as shown on the plans and specified including protection of the existing barrier layer of Phase 1 closure final cover from damage and restoration of the side slopes and sodding of disturbed areas.

9. Restoration of the perimeter ditch on the east and west sides of Cells 9-10 to the Phase 2 closure limits indicated on the Drawings, removal of existing soil and replacement with granular fill, grading for positive flow, installation of new MESs on culverts, and sodding to the edge of existing pavement.

10. Other work required by the plans including liner repair and restorations, site cleanup, sodding and maintenance during construction period, and other incidental and pertinent earthwork, Site work, civil, mechanical construction required for the Project to be considered substantially complete and ready for use by the County.

K. Existing intermediate cover on the side slopes within the phase 2 closing area may be used as part of the initial grading or for filling depression areas in preparation for installation of the 6-inch granular fill for the leveling course.

Excess fill from the existing intermediate cover including clean left-over mulch shall be transported by the Contractor to the working face for use by the County forces as daily cover.

01 11 00 - 8 DECEMBER 11, 2025

L. Fill material required for this Project including the 6-inch leveling course, 24-inch protective cover, fill needed for the perimeter ditch restoration, fill needed for the E&M sump upgrade work, and other incidental fill material shall be provided by the Contractor from offsite sources as described in Section 01 29 00, Measurement and Payment.

M. Offsite fill material source shall be as designated by the Contractor as a source meeting the minimum requirements of the specifications for fill material. No fill from onsite borrow pits are available to the Contractor for use in this Project.

N. The solid waste excavation for construction of the let-down stormwater pipe installations and the waste excavation for shaping the side slopes for stormwater terraces are required to be done prior to installation of the leveling course so that the top 6 inches of leveling course is not contaminated with solid waste. Excess solid waste from the trench excavation operation shall be transported to the working face at the end of each day for proper disposal.

O. The County has installed and maintains an active LFG collection system with vertical and horizontal gas collectors, laterals, headers, manifolds and condensate sumps on the east, north and west side slopes as shown on the Drawings. The Contractor shall be responsible to field locate and stake existing LFG facilities for the Phase 2 sequential closure construction including pipes, valves and structures within the construction limits that may be impacted by this construction. The Contractor shall protect the existing LFG collection system from damage by his forces throughout the construction project. The existing LFG collection system manifold and lateral piping in the proposed Phase 2 closure area is planned to be disconnected and remain buried in place once the above-liner LFG collection system is constructed and the existing wellheads are connected to the new piping.

P. Similarly, the County has installed interim stormwater inlets and downcomer pipes in the Phase 2 closure area and on the open top within the construction limit areas to control erosion. The Contractor shall remove the interim stormwater pipes and inlets within the Phase 2 closing area and replace with new pipes and inlets as shown on the Drawings and specified. The intermediate cover in the top area is required to be graded prior to substantial completion for positive flow towards the new Phase 2 inlet structures and temporary stormwater inlets and pipes installed as required by the plans to prevent erosion.

Q. Any damage by the Contractor to the existing LFG collection system shall be reported to the Engineer and County’s LFG operator immediately in order for the LFG operator to deactivate the LFG collection system for that area and by-pass the damaged section. The LFG collection system supplies fuel to the onsite LFG Pretreatment Facility that prepares the LFG to be sent to the adjacent power plant to produce electricity. Damage to the existing LFG collection system may result in oxygen intrusion in the system requiring the

DECEMBER 11, 2025 01 11 00 - 9

LFG Pretreatment Facility operations to be adjusted or shut down to prevent explosions or other accidents and result in secondary damages. The damages to the LFG collection system shall be repaired immediately by the Contractor to original or better conditions at no cost to the County.

R. In general, the following work components for Part B of this Project shall be completed, tested, and fully operational and shall include but are not limited to the following:

1. Site preparation and mobilization.

2. Demolition and removal of existing leachate sump components at Bays

8 through 13 as indicated on the Drawings and in the specifications.

3. Installation and testing of valves, electrical connections, instrumentation and control systems, and related components at Bays 8 through 13 as indicated on the Drawings and in the specifications.

4. Installation of concrete pads and FFCRS erosion and drainage control at Bays 8 through 13 as indicated on the Drawings and in the specifications.

5. Sodding all disturbed areas of the Project Site.

S. Work also includes coordination with the County’s LFG operator, Site Maintenance Contractor and the operation of the onsite LFG Pretreatment Plant and leachate pump station to minimize the number of shutdowns and the duration of each shut down. The coordination includes participation in pre-activity meetings with the Engineer and County operations staff, County’s LFG operator, and the Site Maintenance Contractor prior to each shut down.

No shut-down will be allowed without a minimum of 48-hour advance written notice by the Contractor to the County. Shutdown of more than 4 hours will not be allowed. A Contractor Assistance Request form to be prepared by Contractor prior to each shutdown event.

T. The Contractor shall coordinate his work with the County’s site maintenance contractor and other contractors, the County’s forces and others who may be working in same general vicinity.

U. The Work of this Contract is divided into a lump sum component and a unit price component. The unit price portion of the Contract consists of work associated with the initial solid waste grading, earthwork and installation of closure system protective cover. Other Work required in the Contract Documents, shown on the Drawings, and described in the specifications is part of the lump sum portion of the Contract.

01 11 00 - 10 DECEMBER 11, 2025

1.04 SUBSTANTIAL COMPLETION

A. In general, the following work components for Part A- Phase 2 sequential closure construction shall be completed, tested, and fully operational, by the substantial completion inspection date including, but are not limited to, the following:

1. Items as indicated in Article 1.03B above.

2. As-built survey and submittal of acceptable as-built drawings.

3. Other work incidental to this Work including site cleanup, dewatering during construction, protection of existing wetlands, disposal of surplus earth, and furnishing and construction of miscellaneous appurtenances in accordance with the Drawings, Specifications and Contract Documents and other work necessary for the Phase 2 closure construction to be considered complete by the County.

4. Connection of new landfill gas system components to the existing system.

5. Testing and startup of mechanical equipment systems including required O&M instruction and training.

B. In general, the following work components for Part B - Electrical and Mechanical Improvements for Bays 8-13 (Cell 9-10) of this Project shall be completed, tested, and fully operational by the Substantial Completion date including, but are not limited to, the following:

1. All items as indicated in Article 1.03C. above.

2. Testing and Startup of mechanical equipment systems including required O&M instruction and training.

C. All quality assurance and quality control test data and certifications, as-built drawings, surveys, special warranties and/or guarantees, and other submittals necessary to prepare Record Documents for the above facilities shall be submitted to the Engineer by the Contractor prior to requesting the Substantial Completion inspection.

1.05 FINAL COMPLETION

A. In general, Final Completion of the entire Project shall occur when items not finished at substantial completion are completed and ready for the County operation with applications for final payment, final submittals, spare parts, and other requirements in accordance with the Contract. The following work shall be completed, tested, and fully operational by the Final Completion date:

1. All work associated with Substantial Completion including Punch List items for both Parts A and B of the Contract.

2. Submittal and Approval of request for Final Payment.

3. Submittal of final test reports and close-out documentation.

DECEMBER 11, 2025 01 11 00 - 11

4. All final warranties and guarantees.

5. Record drawing requirements.

6. Other work incidental to this Work, including, but not limited to, site cleanup, disposal of waste materials, furnishing, and construction of miscellaneous appurtenances in accordance with these specifications.

1.06 DRAWINGS AND SPECIFICATIONS FURNISHED TO CONTRACTOR FOR

CONSTRUCTION

A. After the County has executed the Contract, the Contractor shall be furnished with six complete sets of paper prints, the same size as the original Drawings, and six copies of the specifications. Additional copies of the Drawings and specifications, when requested, may be furnished to the Contractor at the cost of reproduction.

1.07 SUPPLEMENTS

A. The supplement listed below, following “END OF SECTION,” is part of this specification.

1. Contractor’s Verification of the Accuracy of Drawings and Specifications.

PART 2 PRODUCTS

2.01 NAME BRAND ITEMS

A. Where brand name products are referenced in the specifications and Drawings, the Contractor shall use one of the listed products when 3 or more products are listed and “or-equal” is not specified. Where less than 3 items are listed, the Contract may utilize an alternative product, if approved by the Owner as an “Approved Equal” through the submittal process.

PART 3 EXECUTION (NOT USED)

DECEMBER 11, 2025 01 11 00 SUPPLEMENT - 1

CONTRACTOR’S VERIFICATION OF THE ACCURACY OF

DRAWINGS AND SPECIFICATIONS

(This form shall be submitted to the Engineer at the pre-construction meeting and prior to the start of Construction)

STATE OF:

COUNTY OF:

______________________________________________________________, being first duly sworn, deposes and certifies that:

Prior to the start of work on the Site, Affiant has carefully studied and compared the Drawings and Specifications and checked and verified pertinent figures shown thereon and applicable field measurements.

Affiant hereby verifies that the Reports, Drawings and Specifications in the Contract Documents for the Orange County Cell 9-12 Phase 2 Closure Construction Project accurately represent the existing site conditions and do not contain conflicts, errors, ambiguities, or discrepancies with the following itemized exceptions:

A. Number of exceptions____________ (if none, please indicate zero in the space provided).

B. _________additional sheets are attached.

AFFIANT:

(Authorized Signature)

(Name)

(Title)

Sworn and subscribed before me this _______ day of ________________________ 20____.

NOTARY:

(Signature)

My Commission Expires:

(Date)

END OF CONTRACTOR VERIFICATION FORM

PW\JA\ORANGE COUNTY FL\D3661000 CHANGE ORDER PROCEDURES

DECEMBER 11, 2025 01 26 57 - 1

SECTION 01 26 57

CHANGE ORDER PROCEDURES

PART 1 GENERAL

1.01 REQUIREMENTS INCLUDED

A. Promptly implement Change Order procedures as required in Section 7.33 (Changes in the Work) of the Orange County Invitation for Bids documentation.

1. Provide full written data required to evaluate changes.

2. Maintain detailed records of work done on a time and material/force account basis.

3. Provide full documentation and breakdown of costs to the Engineer on request.

1.02 RELATED REQUIREMENTS

A. Schedule of Prices from Bid Form.

B. Invitation for Bids.

C. Section 01 29 75, Applications for Payment.

D. Section 01 29 73, Schedule of Values.

E. Forms attached to this section will be used for this Project.

1.03 FORMS

A. Contract Clarification/Interpretation Request Form (CCIR)

Clarifications of the Contract and/or supplemental information issued to provide clarification and/or to requested additional work shall be initiated through Contract CCIR Form (Supplemental Form 1. CCIRs may be initiated by the Contractor, Engineer or Owner. When a CCIR results in a potential change in Contract Time and/or Contract Amount, a Request for Proposal or Notice of Proposed Change process will be utilized to document and adjudicate the modifications.

B. Request for Proposal (RFP)

Owner and Engineer may initiate changes by submitting an RFP (Supplemental Form 5) to the Contractor. Request will include:

1. Detailed description of the change, products, and location of the change in the Project anticipated.

CHANGE ORDER PROCEDURES PW\JA\ORANGE COUNTY FL\D3661000

01 26 57 - 2 12/11/2025DECEMBER 11, 2025

2. Supplementary or revised Drawings and specifications.

3. The Project time span for making the change and a specific statement as to whether overtime work is or is not authorized.

4. A specific period of time during which the requested price will be considered valid.

C. Notice of Proposed Change (NPC) Contractor may initiate changes by submitting a written letter to the Owner describing the NPC. Letter shall contain:

1. Description of the proposed changes.

2. Statement of the reason(s) for making the proposed changes.

3. Statement of the effect on the Contract Sum and the Contract Time.

4. Statement of the effect on the work of separate Contractors.

5. Documentation supporting any changes in Contract Sum or Contract Time, as appropriate.

Upon receipt of an NPC, the Engineer will prepare an RFP and, if not previously initiated, and a CCIR to track and adjudicate the potential change issue.

D. The Contractor’s response to the Engineer’s RFP, once accepted by the Owner, will be an “Accepted Change in Contract” and will be incorporated into a Change Order. Contractor’s response to the Engineer’s RFP shall include a detailed breakdown of costs for each category of work showing the cost of labor, material, and O&P expenses. Submittal of response to RFP with insufficient cost breakdown detail will not be acceptable.

E. The Contractor shall not proceed with any change in Work unless the Engineer notifies him in writing that his response to RFP has been accepted by the Owner.

F. The Contractor’s NPC does not constitute a change in Contract, and the Contractor shall not proceed with any change in Work initiated by him until approved in writing by the Owner. The Owner may request the Engineer to issue an RFP to the Contractor for the proposed NPC. Only the Contractor’s response to the Engineer’s RFP, once accepted by the Owner, be an “Accepted Change in Contract” and will be incorporated into a Change Order.

1.04 PREPARATION OF CHANGE ORDERS

A. Engineer will track RFPs and “Accepted Changes” using a Change in Contract Summary Form (Supplemental Form 6).

B. The County will prepare each Change Order (Supplemental Form 3). Change Order may include multiple “Accepted Change” Items.

C. Change Order will describe changes in the work, both additions and deletions, with attachments of revised Contract Documents to define details of the change.

PW\JA\ORANGE COUNTY FL\D3661000 CHANGE ORDER PROCEDURES

DECEMBER 11, 2025 01 26 57 - 3

D. Change Order will provide an accounting of the adjustment in the Contract Sum and in the Contract Time.

1.05 TIME AND MATERIAL/FORCE ACCOUNT CHANGE ORDER/CONSTRUCTION

CHANGE AUTHORIZATION

A. The Engineer and Owner will issue a Work Change Directive directing Contractor to proceed with the changes (Supplemental Form 2).

B. Upon completion of the change, the Contractor shall submit itemized accounting and supporting data.

1.06 SUPPLEMENTS

A. The supplements listed below, following “End of Section,” are part of this specification.

1. Contract Clarification/Interpretation Request Form (CCIR).

2. Work Change Directive.

3. Change Order Form.

4. Field Order by Resident Project Representative (RPR).

5. Request for Proposal (RFP).

6. Change in Contract Summary Log.

PART 2 PRODUCTS (NOT USED)

PART 3 - EXECUTION (NOT USED)

PW\JA\ORANGE COUNTY FL\D3661000 CONTRACT CLARIFICATION/

DECEMBER 11, 2025 INTERPRETATION REQUEST (CCIR)

01 26 57 SUPPLEMENT 1 - 1

CONTRACT CLARIFICATION/

INTERPRETATION REQUEST CCIR NO:

PROJECT: Orange County Cell 9-12 Landfill Closure Phase 2 PROJECT NO:

CONTRACTOR:

Clarification/Interpretation Initiated By:

Regarding: Plan Sheet of Spec. Section:

Description:

Prepared by

Date

Response Assigned to:

Prepared by

Date

PW\JA\ORANGE COUNTY FL\D3661000 WORK CHANGE DIRECTIVE

DECEMBER 11, 2025 01 26 57 SUPPLEMENT 2 - 1

WORK CHANGE DIRECTIVE

WORK CHANGE DIRECTIVE NO.

Directive Prepared By:

(Name) (Title)

Date Prepared:

PROJECT DATA CONTRACT DATA

Name: Cell 9-12 Landfill Closure Phase 2 Contract Document Page Number:

Location: OCSWMF-Cell 9-12 Drawing Number:

Owner’s Bid Number: Specification Section/Number:

WORK CHANGE DIRECTIVE DISTRIBUTION:

Owner’s Home Office:

Attn.:

No. Copies Date Sent:

Contractor’s Home Office:

Attn.:

No. Copies Date Sent:

Owner’s Field Office: No. Copies Date Sent:

Engineer’s Field Office: No. Copies Date Sent Contractor’s Field Office: No. Copies Date Sent:

You are hereby directed to execute promptly this WORK CHANGE DIRECTIVE which orders an addition, deletion or revision in the Work, or responding to differing or unforeseen physical conditions under which the Work is to be performed as provided in the Contract Terms and Conditions, or emergencies as provided in the Contract Terms and Conditions, without change in Contract Price or Contract Time.

If CONTRACTOR determines that a change in Contract Price or Contract Time is required as a result of this WORK CHANGE DIRECTIVE, CONTRACTOR must make such a claim prior to starting the Work in accordance with the Contract Terms and Conditions of the Contract Documents. If a Change Order is issued in accordance with the Contract Documents, this WORK CHANGE DIRECTIVE will be invalidated;

otherwise, CONTRACTOR shall promptly proceed with the Work described in this WORK CHANGE DIRECTIVE pursuant to the applicable conditions of the Contract Documents.

DESCRIPTION OF CHANGE IN WORK:

WORK CHANGE DIRECTIVE PW\JA\ORANGE COUNTY FL\D3661000

01 26 57 SUPPLEMENT 2 - 2 12/11/2025DECEMBER 11, 2025

ATTACHMENTS:

Description of Item Attached No. of Copies

1.

2.

3.

4.

5.

PW\JA\ORANGE COUNTY FL\D3661000 CHANGE ORDER FORM

DECEMBER 11, 2025 01 26 57 SUPPLEMENT 3 - 1

ORANGE COUNTY UTILITIES

Contractor: Change Order Number Page 1 of

Vendor Code Date

Contract No. Original Contract Amount

Project Name Revised Contract Amount $0.00

Engineer

Sequence No.

Item No. Quantities Unit Description Unit Price Additions Deductions

Totals $0.00 $0.00 Percent Complete Time Percent Complete Cost:

Net Dollars This Change Order $0.00

Total Time Previous Change Orders Days

Net Dollars Previous Change Order

Total Time This Change Order Days

Net Dollar Changes to Date $0.00

Original Contract Time Days Original Contract Dollar Amount $0.00

Revised Contract Time Days Revised Contract Dollar Amount $0.00

CONTRACTOR

This change order includes not only all direct costs of contractor such as labor, material , job overhead, and profit markup but also includes any costs for modifications or changes in sequence of work to be performed, delays rescheduling, disruptions, extended direct overhead, acceleration, material, or other escalation which includes wages, and other impact costs.

BY Date Contractor's Signature

BY

Accepted for Contractor By: Print Name & Title

ORANGE COUNTY UTILITIES

Approval Recommended:

By Date Chief Inspector Name:

By Date Manager

By Date Director Utilities

By Date Orange County Mayor

PW\JA\ORANGE COUNTY FL\D3661000 FIELD ORDER BY RESIDENT

DECEMBER 11, 2025 PROJECT REPRESENTATIVE (RPR)

01 26 57 SUPPLEMENT 4 - 1

FIELD ORDER BY RESIDENT PROJECT REPRESENTATIVE (RPR)

FIELD ORDER NO.

Order Prepared By:

(Name) (Title)

Date Prepared:

PROJECT DATA CONTRACT DATA

Name: Cell 9-12 Landfill Closure Phase 2 Contract Document Page Number:

Location: OCSWMF-Cell 9-12 Drawing Number:

Owner’s Bid Number: Specification Section/Number:

FIELD ORDER DISTRIBUTION:

Owner’s Home Office:

Attn.:

No. Copies Date Sent:

Contractor’s Home Office:

Attn.:

No. Copies Date Sent:

Owner’s Field Office: No. Copies Date Sent:

Engineer’s Field Office: No. Copies Date Sent Contractor’s Field Office: No. Copies Date Sent:

You are hereby directed to execute promptly this Field Order which interprets the Contract Documents or orders minor changes in the work without change in…