CITY OF DALLAS

DALLAS WATER UTILITIES

SOUTHWEST 96-INCH WATER

TRANSMISSION PIPELINE PROJECT

SUMMIT GST TO US HWY 67

PID 6732, 6731, 6730, 5278, 7262

MARCH 2026

PART T - TECHNICAL SPECIFICATIONS

Volume 2

Contract No. 26-003

AECOM Technical Services, Inc 13355 Noel Road, Suite 400 Dallas, TX 75240 TBPE Reg. No. F-3580

Summit GST to US HWY 67 Southwest 96-inch Water Transmission Pipeline Project Seals Page Contract No. 26-003 2/25/2026

00 01 07 - Page 1 of 1

CITY OF DALLAS WATER UTILITIES

SEALS PAGE

SECTION 00 01 07

AECOM Technical Services, Inc

TBPELS F-3580

Divisions 00, 01, 02, 03, 32, 33

Specifications 31 05 19.13, 31 09 13, 31 23 16, 31 23 19, 31 23 23, 31 23 34, 31 50 00, 40 05 60, 40 05 64

01-30-2026

TBPELS F-3580

Division 13

Gupta & Associates, Inc

TBPELS F-2593

Specifications 26 00 00, 26 05 19, 26 05 26, 26 05 29, 26 05 33, 26 05 43, 26 24 19, 26 28 16, 26 41 00, 26 50

Elk Engineering Associates, Inc

TBPELS F-3434

Specification 26 42 00

TBPELS F-3580

Specifications 31 72 00, 31 73 00, 31 74 00.01, 31 74

00.02, 31 74 00.03, 31 74 00.04

Gupta & Associates, Inc

TBPELS F-2593

40 61 00, 40 61 26, 40 61 93, 40 61 96, 40 68 60, 40 80 00

Transmission Pipeline Project Table of Contents Contract No. 26-003 3/4/2026

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CITY OF DALLAS WATER UTILITIES

TABLE OF CONTENTS

SECTION 00 01 10

Volume 1:

Competitive Sealed Proposal

Volume 2: TECHNICAL SPECIFICATIONS Division 00:

Section 00 01 01 – Cover Section 00 01 07 – Seals Page Section 00 01 10 – Table of Contents Section 00 01 11 - Minimum Contractor Qualification Requirements Division 01:

Section 01 12 16 – Construction Sequence and Shutdown Limitations Section 01 32 00.01 – Record Drawings Section 01 33 00 – Submittals Section 01 36 00 – Pipe Laying Proveout Section 01 45 00 – Quality Control Requirements Section 01 79 00 – Contractor Safety Plan Division 02:

Section 02 20 10 – Pre and Post-Construction Inspections Division 03:

Section 03 34 10 – Lightweight Cellular Concrete Fill Division 13:

Section 13 47 12.13 – Corrosion Test Stations Section 13 47 13 – Cathodic Protection Section 13 47 13.12 – Continuity and Joint Bonding Division 26:

Section 26 00 00 – Electrical - General Provisions Section 26 05 19 – LV Wires and Cables Section 26 05 26 – Grounding and Bonding System Section 26 05 29 – Electrical Support Hardware Section 26 05 33 – Raceways, Boxes, Enclosures, and Fittings Section 26 05 43 – Underground System

Transmission Pipeline Project Table of Contents Contract No. 26-003 3/4/2026

00 01 10 - Page 2 of 3

Section 26 05 73 – Power System Study Section 26 22 13 – Distribution Dry-Type Transformers Section 26 24 16 – Panelboards Section 26 24 19 – LV Motor Control Centers Section 26 28 16 – LV Enclosed Circuit Breakers and Safety Switches Section 26 41 00 – Lightning Protection System Section 26 43 13 – LV AC Surge Protection Devices (SPDs) Section 26 50 00 – Lighting System Division 31:

Section 31 05 19.13 – Geotextiles Section 31 09 13 – Geotechnical Instrumentation and Monitoring Section 31 23 16 – Excavation and Backfill Section 31 23 19 – Control of Water During Construction Section 31 23 23 – Controlled Low Strength Material (CLSM) Section 31 23 34 – Spoil and Excavated Material Disposal Section 31 50 00 – Trench Safety Plan Section 31 72 00 – Tunnel Initial Support Section 31 73 00 – Tunnel and Shaft Grouting Section 31 74 00.01 – Hand Mining Section 31 74 00.02 – Tunnel Boring Machine Section 31 74 00.03 – Microtunneling Section 31 74 00.04 – Open Face Pipe Jacking Division 32:

Section 32 92 14 – Hydromulch Seeding Division 33:

Section 33 01 30.51– Bypass Pumping of Existing Sewer Systems Section 33 05 24.23 – Steel Pipe and Fittings Section 33 05 25 – Weld After Backfill Section 33 05 33 – Prestressed Concrete Cylinder Pipe Section 33 05 76 – Fiberglass Manholes Section 33 10 13 – Disinfection Water utility Distribution System Section 33 11 13 – Bar-Wrapped Concrete Cylinder Pipe Section 33 14 20 – Monolithic Insulating Joints Division 40:

Transmission Pipeline Project Table of Contents Contract No. 26-003 3/4/2026

00 01 10 - Page 3 of 3

Section 40 05 60 – Valve and Appurtenances Section 40 61 00 – Process Control Systems General Provisions Section 40 61 26 – Process Control Systems Training Section 40 61 93 – Input-Output List Section 40 61 96 – Control Loop Descriptions Section 40 68 60 – Application Services Section 40 80 00 – Commissioning of Process Control Systems Volume 3:

Appendices Appendix A – 2009 Geotechnical Report by Fugro Appendix B – 2025 Wintergreen Tunnel Geotechnical Data Report by Terracon Appendix C – 2025 Wintergreen Tunnel Geotechnical Baseline Report by AECOM Appendix D1 – 2025 Oncor Segment Geotechnical Recommendation Report by Terracon Appendix D2 – Sorcey Road GDR Volume 4:

Appendix E – SUE Level A Data Appendix F – BNSF Draft Agreement Appendix G – Oncor Executed Agreement and Easement Documents & Legal Description Appendix H – Utility Encroachment Guides

H1 ExxonMobile Agreement Requirements H2 ONEOK/Magellan Agreement Requirements

Appendix I - Design Sheet and Lay Schedule for the 96-in PCCP Pipe at Wintergreen and

US-67

Appendix J - Design Sheet and Lay Schedule for the 78-in PCCP Pipe at Sorcey Pump Station Volume 5:

Appendix K - Design Sheets and Lay Schedule for the 54-in/42-in PCCP Pipe at Summit

GST

Appendix L - Design Sheet for the 24-in and Design Sheets and Pipe Lay Schedule 16-in Bar Wrap Water Lines (Cedar Hill) Appendix M – Approved Legal Descriptions of DWU Acquired Parcels Appendix N – Design Sheet for the 30-in Bar Wrap Water Line (Cedar Hill and DWU)

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

CITY OF DALLAS WATER UTILITIES

MINIMUM CONTRACTOR QUALIFICATION REQUIREMENTS

SECTION 00 01 11

PART 1 GENERAL

1.01 WORK INCLUDED

A. Meet the minimum documentations and qualification requirements listed below for each discipline. Provide information requested by the OWNER as described below with the proposal.

1.02 MINIMUM QUALIFICATIONS

A. Prospective OFFERORS or CONTRACTORS (used interchangeably herein) must demonstrate that they meet the minimum requirements for experience by successfully completing minimum number of projects prior to submitting a Proposal for this Project. See below for minimum qualification requirements for specific disciplines and specifications must be submitted with the proposal.

B. Open Cut Experience

1. CONTRACTOR responsible for performing the 96-Inch Transmission Main installation must provide a list of all similar scope water pipeline construction projects performed in the past ten (10) years. A minimum of five (5) projects is required. These projects must be potable or raw water transmission main projects, each of which must have included construction of at least one mile of steel pipe 72-inches in diameter or greater with fully welded pipe joints by bidder’s own forces.

2. The experience record must be submitted in conjunction with the bid proposal.

Project information to be provided must include, but is not limited to, description and location of the project; type of contract; percentage of work performed with bidder's own forces; the bid price and the final total contract cost of each project with explanation for change orders; name and telephone numbers/email addresses of the project OWNER and ENGINEER; size, material, linear feet of pipe installed, the contract time allowed for completion of each project and the actual time elapsed from start to completion with explanation for any differences.

3. Resumes of key personnel to be assigned to the project must be provided with the current project assignments listed. If this work is not planned to be built with their own forces, the CONTRACTOR to provide this information on behalf of the utility CONTRACTOR designated to work on the 96-inch water transmission main. In the event of any change of proposed staff during the proposal or execution phases, the CONTRACTOR must notify the OWNER immediately and provide an opportunity for the OWNER to review resumes and approve personnel as equally qualified to complete the work.

4. Key personnel shall include as a minimum the Project Manager, Project Superintendent, Quality Control Supervisor, and Safety Manager.

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

C. Tunneling Experience

1. The experience record must be submitted in conjunction with the bid proposal.

Project information to be provided must include, but is not limited to, description and location of the project; type of contract; percentage of work performed with bidder's own forces; the bid price and the final total contract cost of each project with explanation for change orders; name and telephone numbers/email addresses of the project OWNER and ENGINEER; size, material, linear feet of tunneling, the contract time allowed for completion of each project and the actual time elapsed from start to completion with explanation for any differences.

2. Resumes of key personnel to be assigned to the project must be provided with the current project assignments listed. If this work is not planned to be built with their own forces, the CONTRACTOR to provide this information on behalf of the SUBCONTRACTOR designated to work on tunneling scope related to the 96-inch water transmission main project. In the event of any change of proposed staff during the proposal or execution phases, the CONTRACTOR must notify the OWNER immediately and provide an opportunity for the OWNER to review resumes and approve personnel as equally qualified to complete the work.

3. For each tunneling method proposed by the CONTRACTOR, the CONTRACTOR or their specialty SUBCONTRACTOR must meet the following minimum qualifications:

a. Hand Mining

1) Successfully completed five (5) projects installing carrier pipe of 72-inch or greater diameter using Hand Mining in the last ten (10) years.

2) At least one (1) project must include a curved tunnel section in similar ground conditions.

3) Tunnel construction is deemed to be specialty CONTRACTOR work. The specialty SUBCONTRACTOR or the CONTRACTOR, if the CONTRACTOR elects to self-perform this work, shall demonstrate for the OWNER’s acceptance that the company has:

1) Successfully completed in the last 10 years at least five previous projects installing carrier pipe of 72-inch or above diameter within a tunnel or casing using similar equipment and means and methods proposed. The projects completed shall be of a similar complexity and degree of difficulty to this project and include one with a curved section and the equipment shall have been operated in similar ground conditions as indicated in the Project GBR/GDR.

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

4) The CONTRACTOR’s ENGINEER shall be licensed by the State of Texas. Have: 1) at least ten (10) years of experience designing shafts and tunnels in mixed ground conditions, 2) have experience and provide references of the proposed tunnel means and methods proposed by the CONTRACTOR, and 3) have 5 similar tunnel projects including curved tunnels for a minimum 72-inch diameter carrier pipe. The ENGINEER shall meet applicable regulatory criteria for each system design. Experience and education shall be documented in a resume with a detailed description of the work actually performed on each of the reference projects. Include contact details for each of the reference projects to include the current phone number, e-mail address, and title of a senior project representative familiar with his/her work. Descriptions of reference project shall include the number of shafts designed, dimensions, shoring methods, modifications to shoring, base slab details, ground and groundwater conditions, and thrust block details. Also indicate method of analyses, standards, computer programs, and materials used for constructing the shafts to include the entrance and exit seal. The CONTRACTOR’s Professional ENGINEER responsible for the tunnel design and sealing of the tunnel design plans and calculations shall submit certificate of insurance for a minimum of $2,000,000 professional liability insurance.

5) The CONTRACTOR’s surveyor shall be registered in the State of Texas and have at least ten (10) years of surveying experience involving underground works and provide references for five (5) similar tunnel projects including curved tunnels for a minimum of 72-inch diameter carrier pipe. Experience and education shall be documented in a resume with a detailed description of the work actually performed on each of the reference projects. Include contact details for each of the reference projects to include the current phone number, e-mail address, and title of a senior project representative familiar with his/her work. Descriptions of reference project shall include the number of excavations including curved tunnels, depths, and tunnel lengths at which the survey was performed.

6) The CONTRACTOR will propose a project superintendent / Operator and project manager with at least 1) Ten years of tunneling experience including experience in the proposed tunneling means and methods proposed for this project. 2) Successfully completed in the last 10 years at least five previous projects installing a carrier pipe over 72 inch diameter within a tunnel or casing including one with a curved section using similar means and methods proposed including carrier pipe annular grouting.

7) The filling of the void between the initial liner and carrier pipe is deemed to be specialty CONTRACTOR work.

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

8) The CONTRACTOR or his specialty SUBCONTRACTOR, which ever will actually be performing the filling of the void between the tunnel or casing intrados and the carrier pipe, shall have successfully grouted at least five tunnels, each being a minimum 72-inches in diameter carrier pipe and a minimum of 500 feet long for each, which were performed and supervised by the CONTRACTOR’s or specialty SUBCONTRACTOR’s own personnel.

9) Experienced supervising personnel with at least five project, each 500+ foot length, minimum 72-inch diameter carrier pipe annular grouting projects completed successfully, must be utilized to supervise this Project’s grouting operations.

10) Ground improvement if required is deemed to be specialty CONTRACTOR work.

11) The CONTRACTOR or his ground improvement SUBCONTRACTOR shall have completed projects of a size and complexity comparable to the work required for this project.

Comparable projects are defined as those performed in similar geological conditions to those described in the GBR or GDR

12) Site safety representative and personnel responsible for air quality monitoring, if required, shall be experienced in tunnel construction and shall have a current certification from OSHA.

b. Tunnel Boring Machine (TBM)

1) Successfully completed five (5) projects installing carrier pipe of 72-inch or greater diameter using TBM tunneling.

2) At least one (1) project must include a curved tunnel section in similar ground conditions.

3) Tunnel construction is deemed to be specialty CONTRACTOR work. The specialty SUBCONTRACTOR or the CONTRACTOR, if the CONTRACTOR elects to self-perform this work, shall demonstrate for the OWNER’s acceptance that the company has:

1) Successfully completed in the last 10 years at least five previous projects installing carrier pipe of 72-inch or above diameter within a tunnel or casing using similar equipment and means and methods proposed. The projects completed shall be of a similar complexity and degree of difficulty to this project and include one with a curved

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

4) The CONTRACTOR’s ENGINEER shall be licensed by the State of Texas. Have: 1) at least ten (10) years of experience designing shafts and tunnels in mixed ground conditions, 2) have experience and provide references of the proposed tunnel means and methods proposed by the CONTRACTOR, and 3) have 5 similar tunnel projects including curved tunnels for a minimum of 72-inch diameter carrier pipe. The ENGINEER shall meet applicable regulatory criteria for each system design. Experience and education shall be documented in a resume with a detailed description of the work actually performed on each of the reference projects. Include contact details for each of the reference projects to include the current phone number, e-mail address, and title of a senior project representative familiar with his/her work. Descriptions of reference project shall include the number of shafts designed, dimensions, shoring methods, modifications to shoring, base slab details, ground and groundwater conditions, and thrust block details. Also indicate method of analyses, standards, computer programs, and materials used for constructing the shafts to include the entrance and exit seal. The CONTRACTOR’s Professional ENGINEER responsible for the tunnel design and sealing of the tunnel design plans and calculations shall submit certificate of insurance for a minimum of $2,000,000 professional liability insurance.

5) The CONTRACTOR’s surveyor shall be registered in the State of Texas and have at least ten (10) years of surveying experience involving underground works and provide references for five (5) similar tunnel projects including curved tunnels for a minimum of 72-inch diameter carrier pipe. Experience and education shall be documented in a resume with a detailed description of the work actually performed on each of the reference projects. Include contact details for each of the reference projects to include the current phone number, e-mail address, and title of a senior project representative familiar with his/her work. Descriptions of reference project shall include the number of excavations including curved tunnels, depths, and tunnel lengths at which the survey was performed.

6) The CONTRACTOR will propose a project superintendent / Operator and project manager with at least 1) Ten years of tunneling experience including experience in the proposed tunneling means and methods for this project. 2) Successfully completed in the last 10 years at least five previous projects installing a carrier pipe over 72 inch diameter within a tunnel or casing including one with a curved section using similar means and methods proposed including carrier pipe annular grouting.

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

8) The CONTRACTOR or his specialty SUBCONTRACTOR, which ever will actually be performing the filling of the void between the tunnel or casing intrados and the carrier pipe, shall have successfully grouted at least five tunnels, each being a minimum 72 inches in diameter carrier pipe and a minimum of 500 feet long for each, which were performed and supervised by the CONTRACTOR’s or specialty SUBCONTRACTOR’s own personnel.

9) Experienced supervising personnel with at least five projects 500+ foot length, minimum 72-inch diameter carrier pipe annular grouting projects completed successfully, must be utilized to supervise this Project’s grouting operations.

10) Ground improvement if required is deemed to be specialty CONTRACTOR work.

11) The CONTRACTOR or his ground improvement SUBCONTRACTOR shall have completed projects of a size and complexity comparable to the work required for this project.

Comparable projects are defined as those performed in similar geological conditions to those described in the GBR or GDR

12) Site safety representative and personnel responsible for air quality monitoring, if required, shall be experienced in tunnel construction and shall have a current certification from OSHA.

c. Microtunneling

1) Successfully completed five (5) projects installing carrier pipe of 72-inch or greater diameter using microtunneling methods.

2) At least one (1) project must include a curved tunnel section in similar ground conditions.

3) Microtunneling construction is deemed to be specialty CONTRACTOR work. The specialty SUBCONTRACTOR or the CONTRACTOR, if the CONTRACTOR elects to self-perform this work, shall demonstrate for the OWNER’s acceptance that the company has: 1) Successfully completed in the last 10 years at least five previous projects installing carrier pipe of 72-inch or above diameter within a tunnel or casing using similar equipment and means and methods proposed. The projects completed shall be of a similar complexity and degree of difficulty to this project and include one with a curved section and the equipment shall have been operated in similar ground conditions as indicated in the Project GBR/GDR/GER

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

4) The CONTRACTOR’s ENGINEER shall be licensed by the State of Texas. Have: 1) at least ten (10) years of experience designing shafts and tunnels in mixed ground conditions, 2) have experience and provide references of the proposed tunnel means and methods proposed by the CONTRACTOR, and 3) have 5 similar tunnel projects including curved tunnels for a minimum of 72-inch diameter carrier pipe. The ENGINEER shall meet applicable regulatory criteria for each system design. Experience and education shall be documented in a resume with a detailed description of the work actually performed on each of the reference projects. Include contact details for each of the reference projects to include the current phone number, e-mail address, and title of a senior project representative familiar with his/her work. Descriptions of reference project shall include the number of shafts designed, dimensions, shoring methods, modifications to shoring, base slab details, ground and groundwater conditions, and thrust block details. Also indicate method of analyses, standards, computer programs, and materials used for constructing the shafts to include the entrance and exit seal. The CONTRACTOR’s Professional ENGINEER responsible for the tunnel design and sealing of the tunnel design plans and calculations shall submit certificate of insurance for a minimum of $2,000,000 professional liability insurance.

5) The CONTRACTOR’s surveyor shall be registered in the State of Texas and have at least ten (10) years of surveying experience involving underground works and provide references for five (5) similar tunnel projects including curved tunnels for a minimum of 72-inch diameter carrier pipe. Experience and education shall be documented in a resume with a detailed description of the work actually performed on each of the reference projects. Include contact details for each of the reference projects to include the current phone number, e-mail address, and title of a senior project representative familiar with his/her work. Descriptions of reference project shall include the number of excavations including curved microtunneling, depths, and tunnel lengths at which the survey was performed.

6) The CONTRACTOR will propose a project superintendent / Operator and project manager with at least 1) Ten years of tunneling experience including experience in the proposed microtunneling means and methods for this project. 2) Successfully completed in the last 10 years at least five previous projects installing a carrier pipe over 72-inch diameter within a tunnel or casing including one with a curved section using similar means and methods proposed including carrier pipe annular grouting.

7) The filling of the void between the tunnel support and carrier pipe is

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

8) The CONTRACTOR or his specialty Sub-CONTRACTOR, which ever will actually be performing the filling of the void between the tunnel or casing intrados and the carrier pipe, shall have successfully grouted at least five tunnels, each being a minimum 72 inches in diameter carrier pipe and a minimum of 500 feet long for each, which were performed and supervised by the CONTRACTOR’s or specialty SUBCONTRACTOR’s own personnel.

9) Experienced supervising personnel with at least five projects 500+ foot length for each, minimum 72-inch diameter carrier pipe annular grouting projects completed successfully, must be utilized to supervise this Project’s grouting operations.

10) Ground improvement if required is deemed to be specialty CONTRACTOR work. The CONTRACTOR or his ground improvement SUBCONTRACTOR shall have completed projects of a size and complexity comparable to the work required for this project. Comparable projects are defined as those performed in similar geological conditions to those described in the GBR/GDR

11) Site safety representative and personnel responsible for air quality monitoring, if required, shall be experienced in tunnel construction and shall have a current certification from OSHA.

d. Open Face Pipe Jacking

1) Successfully completed five (5) projects installing carrier pipe of 72-inch or greater diameter using open face pipe jacking.

2) At least one (1) project must include a curved tunnel section in similar ground conditions.

3) Tunneling construction is deemed to be specialty CONTRACTOR work. The specialty SUBCONTRACTOR or the CONTRACTOR, if the CONTRACTOR elects to self-perform this work, shall demonstrate for the OWNER’s acceptance that the company has:

1) Successfully completed in the last 10 years at least five previous projects installing carrier pipe of 72-inch or above diameter within a tunnel or casing using similar equipment and means and methods proposed. The projects completed shall be of a similar complexity and degree of difficulty to this project and include one with a curved

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

4) The CONTRACTOR’s ENGINEER shall be licensed by the State of Texas. Have: 1) at least ten (10) years of experience designing shafts and tunnels in mixed ground conditions, 2) have experience and provide references of the proposed tunnel means and methods proposed by the CONTRACTOR, and 3) have 5 similar tunnel projects including curved tunnels for a minimum of 72-inch diameter carrier pipe. The ENGINEER shall meet applicable regulatory criteria for each system design. Experience and education shall be documented in a resume with a detailed description of the work actually performed on each of the reference projects. Include contact details for each of the reference projects to include the current phone number, e-mail address, and title of a senior project representative familiar with his/her work. Descriptions of reference project shall include the number of shafts designed, dimensions, shoring methods, modifications to shoring, base slab details, ground and groundwater conditions, and thrust block details. Also indicate method of analyses, standards, computer programs, and materials used for constructing the shafts to include the entrance and exit seal. The CONTRACTOR’s Professional ENGINEER responsible for the tunnel design and sealing of the tunnel design plans and calculations shall submit certificate of insurance for a minimum of $2,000,000 professional liability insurance.

5) The CONTRACTOR’s surveyor shall be registered in the State of Texas and have at least ten (10) years of surveying experience involving underground works and provide references for five (5) similar tunnel projects including curved tunnels for a minimum of 72-inch diameter carrier pipe. Experience and education shall be documented in a resume with a detailed description of the work actually performed on each of the reference projects. Include contact details for each of the reference projects to include the current phone number, e-mail address, and title of a senior project representative familiar with his/her work. Descriptions of reference project shall include the number of excavations including curved tunnels, depths, and tunnel lengths at which the survey was performed.

6) The CONTRACTOR will propose a project superintendent / Operator and project manager with at least 1) Ten years of tunneling experience including experience in the proposed tunneling means and methods for this project. 2) Successfully completed in the last 10 years at least five previous projects installing a carrier pipe over 72 inch diameter within a tunnel or casing including one with a curved section using similar means and methods proposed including carrier pipe annular grouting.

Transmission Pipeline Project Minimum Contractor Qualification Requirements Contract No. 26-003 3/3/2026

8) The CONTRACTOR or his specialty SUBCONTRACTOR, which ever will actually be performing the filling of the void between the tunnel or casing intrados and the carrier pipe, shall have successfully grouted at least five tunnels, each being a minimum 72 inches in diameter carrier pipe and a minimum of 500 feet long, which were performed and supervised by the CONTRACTOR’s or specialty SUBCONTRACTOR’s own personnel.

9) Experienced supervising personnel with at least five projects 500+ foot length for each, minimum 72-inch diameter carrier pipe annular grouting projects completed successfully, must be utilized to supervise this Project’s grouting operations.

10) Ground improvement if required is deemed to be specialty CONTRACTOR work.

11) The CONTRACTOR or his ground improvement SUBCONTRACTOR shall have completed projects of a size and complexity comparable to the work required for this project.

Comparable projects are defined as those performed in similar geological conditions to those described in the GBR/GDR.

12) Site safety representative and personnel responsible for air quality monitoring, if required, shall be experienced in tunnel construction and shall have a current certification from OSHA.

D. Cathodic Protection & AC Mitigation

a. The CONTRACTOR must provide a qualified Corrosion Expert to oversee the installation and commissioning of the cathodic protection system.

Minimum qualifications include:

1) Certification by AMPP as a NACE CP-4 Cathodic Protection Specialist, AMPP Corrosion Specialist, or a registered Professional ENGINEER in the State of Texas with relevant CP credentials.

2) Minimum ten (10) years of experience in cathodic protection for buried or submerged metallic structures.

3) Documentation of at least five (5) installations, three (3) or more years old, that have been tested and found satisfactory.

1.03 FORMS

A. Refer to mandatory forms under Article 29 Forms under 00 45 16 QUALIFICATIONS STATEMENT for CONTRACTOR completion.

END OF SECTION

Transmission Pipeline Project Record Drawings Contract No. 26-003 2/25/2026

01 32 00.01 - Page 1 of 3

CITY OF DALLAS WATER UTILITIES

RECORD DRAWINGS

SECTION 01 32 00.01

PART 1 GENERAL

1.01 WORK INCLUDED

A. Meet all documentation requirements listed. Provide information as requested by the Owner concerning this project.

1.02 SUBMITTALS

A. Submit record documents to the Owner and Engineer for review and acceptance thirty

(30) days prior to final completion of the project.

1. Provide one (1) set of marked up drawings on a clean set of blueline prints.

2. Provide one (1) set of marked up specification changes

B. Submittals shall be in electronic format in accordance with Section 01 33 00

1. Application for Payment will not be recommended for payment if record documents are found to be incomplete or not in order. Final payment will not be recommended without record documents

C. After completion of the project and the final inspection has been accomplished, but prior to the final payment.

1. Record drawings shall be shown on a clean set of blueline prints and furnished to the owner for their files.

1.03 PREPARATION OF RECORD DRAWINGS

A. Maintain at the project site one (1) complete record copy of:

1. Drawings

2. Specifications

3. Addenda

4. Contract modifications

5. Approved shop drawings and record data

6. One (1) set of construction photographs

7. Test records

8. Clarifications and other information provided in RFI responses.

9. Reference standards

B. Store documents and samples in the Contractor’s field office.

1. Documents are to remain separated from documents used for construction.

These documents are not to be used for construction.

2. Provide files and racks for the storage of documents.

3. Provide a secure storage space for the storage of samples.

Transmission Pipeline Project Record Drawings Contract No. 26-003 2/25/2026

01 32 00.01 - Page 2 of 3

4. Maintain documents in clean, dry, legible conditions, and in good order.

5. Make documents and samples available at all times for inspection by the Owner.

C. Marking Drawings

1. Label each document as “Project Record” in large printed letters.

2. Record information as construction is being performed.

a. Do not conceal any work until the required information is recorded.

b. Mark drawings to record actual construction, including the following:

1) Depths of various elements of the foundation in relation to finished first floor datum or the top of walls.

2) Horizontal and vertical locations of underground utilities and appurtenances constructed and existing utilities encountered during construction.

3) Location of internal utilities and appurtenances concealed in the construction. Make reference to permanent structure on the surface. Include the following equipment:

a. Piping

b. Ductwork

c. Equipment and control devices requiring periodic maintenance or repair.

d. Valves, unions, traps, and tanks

e. Service entrance

f. Feeders

g. Outlets

4) Changes of dimension and detail.

5) Changes made by Field Order and Change Order.

6) Details not on the original Contract Drawings.

c. Mark specifications and addenda to record materials and the equipment provided.

1) Record manufacturer name, trade name, catalog number, and each supplier (with address and phone number) of each product and item of equipment actually installed.

2) Record changes made by Field Order and Change Order.

d. Mark additional work or information in erasable pencil.

Transmission Pipeline Project Record Drawings Contract No. 26-003 2/25/2026

01 32 00.01 - Page 3 of 3

1) Use red for new or revised indication.

2) Use purple for work deleted or not installed (lines to be removed).

3) Highlight in yellow the items constructed per the plans.

e. Submit record documents to the Owner for review and acceptance thirty

(30) days prior to final completion of the project.

1) Provide one (1) set of marked up drawings.

2) Provide one (1) set of marked up specification changes.

Transmission Pipeline Project Construction Sequence Contract No. 26-003 3/3/2026

01 12 16 - Page 1 of 7

CITY OF DALLAS WATER UTILITIES

CONSTRUCTION SEQUENCE & SHUTDOWN LIMITATIONS

SECTION 01 12 16

PART 1 GENERAL

1.01 SUMMARY

A. Prior to the start of any work on the project, the Contractor shall develop a construction schedule, in accordance with General Conditions, with a sequence of operations which will allow for a safe connection to and shutdown of the Summit GSTs site, Sorcey Pump Station GST Site, connection to the existing 96-in PCCP line at Wintergreen Road and US-67, relocation of all water and wastewater utilities shown in the drawings, and disinfection of the potable lines prior to use.

B. Prepare and submit a construction schedule that accomplishes the work within the allotted time noted below and adheres to the overall schedule and project specific constraints listed herein.

C. Coordinate the work with activities of the Owner, Cedar Hill, Grand Prairie, and Duncanville for any planned shutdown activities.

D. The construction schedule is a tool for the Contractor and the Owner to use in executing and monitoring the progress of the work. Failure to include any items of work in the construction schedule does not relieve the Contractor of their responsibility to complete the work as specified in the Contract Documents.

1.02 RELATED WORK AND SPECIFICATIONS

E. Section 01 33 00 – Submittals

F. Section 01 45 00 - Quality Control

1.03 SUBMITTALS

A. Contractor to provide a construction schedule prior to commencement of work per requirements of this Specification.

B. Contractor to provide a monthly update to the Construction Progress Schedule with every Pay Application.

1.04 PROJECT-SPECIFIC SCHEDULING CONSTRAINTS

A. General

1. Contractor shall submit a detailed shutdown and work plan ahead of every shutdown for the Engineer's and Owner's review and approval prior to each planned shutdown.

2. The Owner will operate all existing valves. The Owner does not guarantee valves are leak-tight or able to effectively hold flow. The Contractor shall be responsible for the control of flow through the valves if they are not leak-tight, at no additional

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01 12 16 - Page 2 of 7 cost to the Owner. Coordinate with the Owner in order to shut any valves for the purposes of isolation.

3. The Contractor shall be responsible for the cost of supplying fuel and continuous monitoring for all generators used for the duration of the work.

4. The Contractor shall conduct pre-construction and post-construction survey of the alignment area and document conditions within all proposed work zones.

This work will not relieve the Contractor from completing any other survey work required by the Contract Documents.

a. Pre-construction Survey: The pre-construction survey shall be conducted prior to construction. The Contractor shall notify the Engineer and Owner two weeks prior to when survey will be performed.

b. Post-construction Survey: The survey shall be conducted prior to the final completion walkthrough. At least two weeks prior to when the Work is anticipated to be complete, the Contractor shall notify the Engineer and Owner.

B. Allowable Shutdowns, Restrictions, and Constraints

1. The following table lists the allowable shutdowns and restrictions in service.

Deviations from these allowable durations must be approved by the Owner and Engineer.

Table 01 12 16-1 Maximum Duration of Shutdown

Critical Operation Max Shutdown Timeframe Customer City Impacted

Cedar Hill 16” and 24” water lines at US-67 and

Wintergreen Rd

4 days per line Dec 1 - Feb 28* Cedar Hill

Duncanville/Cedar Hill GST at Summit Site 3 days Dec 1 - Feb 28*

Duncanville

Cedar Hill

Grand Prairie GSTs at Summit Site and Cedar

Hill Flameleaf Pump Station

3 days Dec 1 - Feb 28* Grand Prairie

Cedar Hill

DWU Sorcey Pump Station 3 days Dec 1 - Feb 28*

Dallas

Duncanville

Grand Prairie

Cedar Hill

Cedar Hill 30-in Line at US-67 and Wintergreen 1 week Dec 1 - Feb 28* Cedar Hill

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*Excludes the weeks of Christmas Day and New Year’s Day

2. The Contractor is responsible for notifying the Owner’s Representative and the Impacted Customers’ Representative at least 2 weeks prior to commencing work on and shutting down any of the critical operations listed in Table 01 12 16-1.

3. The restriction times stated in the above Table 01 12 16-1 are the maximum time permitted, not including the time required for the Owner to open or close the valves and take the system out of service.

4. To complete the work during the given shutdown times, the Contractor may need to work 24 hours in a day, as long as the hours are in accordance with City Ordinances found on each city’s website and the General Notes sheet of the plan set.

5. There may be other ongoing projects that may be conducting work in locations that may overlap with the locations included in this Project. The Contractor shall be responsible for coordinating work or shutdowns activities so as not to interfere with the already on-site contractors. If the substantial completion date of the other construction projects is extended which affects the critical path activities on the Contractor’s construction schedule, the Contractor may request additional time be added to the Project for the amount of time that the other contractor delays the Contractor’s construction schedule. The Contractor is responsible for providing documentation using the construction schedule to document the impact to the critical path. No additional compensation will be included in the time extension. The Contractor may request additional information regarding these projects from the Owner.

6. In the event that any time limit established in Table 01 12 16-1 is exceeded, the Contractor shall be responsible for any additional costs incurred by the Owner or impacted customer city as a result of that time period being exceeded. Such expenses may include, but not be limited to:

a. Additional personnel costs incurred by the Owner or customer city as a result of that time period being exceeded.

b. Additional costs incurred by the Owner to rent equipment necessary as a result of the Contractor’s failure to complete the work within the allotted time.

c. Penalties imposed on the Owner by any regulatory agency or other entity, which penalties were incurred by reason of a system failure or contractual obligations attributed in whole or in part to the delay in completion of a task listed in Table 01 12 16-1.

d. The Owner may withhold from the Contractor’s compensation the actual costs for any such expenses incurred.

7. The Contractor shall ensure all equipment, material, and personnel are ready and onsite prior to requesting shutdown of operating system.

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8. Work must be as complete as possible and pipe and appurtenances are assembled as much as possible before commencing the shutdown to minimize shutdown period.

C. Mandatory Construction Sequence Constraints

1. Prior to the construction of the 96-in Water Line Segment at US-67 and Wintergreen Road between Sta 142+00 and 144+27.80 and the relocation of the City of Cedar Hill 24-in and 16-in Water Lines, the City of Cedar Hill requires a test shutdown of their valves shown in Exhibits 1 and 2 at the end of this specification.

2. Prior to the construction of the 96-in Water Line Segment at US-67 and Wintergreen Road between Sta 142+00 and 144+27.80, Contractor shall relocate the City of Cedar Hill 24-in and 16-in Water Lines as shown in the plans on Sheet 75. All work on the 24” Cedar Hill water line at US-67 and Wintergreen Rd must be completed before beginning work on the 16” Cedar Hill water line.

Refer to the Valve Sequencing exhibits for the valves that must be operated for the relocation procedure.

a. Relocation of the 24” Water Line (Exhibit 1 at the end of this specification):

Close the five valves shown on the exhibit before work begins.

b. Relocation of the 16” Water Line (Exhibit 2 at the end of this specification):

Close the three valves shown on the exhibit before work begins.

3. Due to the limited working space, Contractor shall hot tap into the existing 54” PCCP line and install the 36” tapping sleeve and valve at station 1+80.00 (offset 19 ft RT) as shown in Sheet 10A prior to the installation of the 96-in open cut section between station 0+92 and 2+31.25. Contractor to provide temporary thrust block to ensure that thrust forces while this line is in service are properly mitigated before connection to the proposed 96” line is completed.

4. Refer to the Valve Sequencing exhibits (Exhibits 3 through 6) for the construction sequencing and phasing at the Summit Connection on Sorcey road.

a. Phase 1 (Exhibit 3 at the end of this specification): Hot tap into the existing 54” water line with a 36” tapping valve. This phase does not include any shutdowns.

b. Phase 2 (Exhibit 4 at the end of this specification): Shut the existing 42” BFV connecting to Duncanville’s Ground Storage Tank and the existing 54” BFV on the 54” line to isolate a portion of the existing 54”/42” water line.

Cold tap into the existing 42” line and install a 54” BFV as shown in Sheet 10A. Extend the 54” line and connect into the new 54” water line and 42-in reducer to connect to the existing 42” PCCP.

c. Phase 3 (Exhibit 5 at the end of this specification): Open the 42” BFV at the Duncanville Summit site. Close two 54” BFVs at Sorcey Pump Station.

At Grand Prairie’s Summit site, close the 42” gate valve and two 30” gate valves. Cut in a 54” BFV in the isolated portion of the pipe.

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d. Open all the valves to resume full operation.

5. Prior to the construction of the 96-in Water Line Segment between Sta 126+00 and 135+00, Contractor shall relocate the City of Cedar Hill 8-inch sewer as shown in the plans on Sheets 76-77.

6. Prior to the construction of the 96-in Water Line Segment between Sta 17+50 and 19+00, Contractor shall relocate the City of Dallas 8-inch sewer as shown in the plans on Sheet 78.

7. Contractor shall construct Phase 1 of 78” Line A (refer to the plans and Exhibit 6 at the end of this specification; the connection from the proposed 96” line to the temporary internal test plug) prior to constructing Phase 2 (refer to the plans and Exhibit 6 at the end of this specification; the temporary internal test plug to the existing 78” joint harnessed dished head plug). To isolate the pipeline for the connection for Phase 2, the Contractor shall coordinate with the Owner to close two existing 54” BFVs and two existing 78” BFVs. The existing pump out valve on the 12” stubout, which is shown in Exhibit 6, will serve as a place to dewater the line.

8. Hydrostatic and Disinfection: Refer to the Testing and Disinfection Plan Sheet 96 in the Drawings Set for a schematic of the testing and disinfection process.

a. Prior to testing and disinfection, the Summit Connection must be complete.

Contractor must submit a detailed hydrostatic and disinfection plan to the Engineer and Owner as a submittal for review and approval prior to commencing work.

b. Add an outlet pipe connection to the existing 42” (or 54”) segment of piping at the North end at the Summit GST site which can be used to provide fill water to the new 96” pipe at that location for testing and later for disinfection.

c. Hydrostatic testing will be performed after the completed pipeline has been cleaned of all construction debris, dirt and trash and after provisions for leak detection testing have been installed. The hydrostatic testing will be performed first followed by leak detection testing.

d. The pipe will be filled with clean water from an existing water source and then pressurized to specified level and monitored for a specified length of time to see if there is any loss in pressure or if there is some loss, it is in the passing range.

i. If leaks are discovered, then dewatering and repair of the leaks will have to be done, and the hydrostatic test will need to be performed again. If hydrostatic test passes and the leak detection performed after without any leaks detected, then disinfection process can begin.

e. Disinfection of the pipe taps and cut-ins involved at the connections to the 96-inch piping at the Summit GST site will need to be done in accordance with DWU procedures usually performed at these types of installations.

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ii. There are two wastewater lines owned by Trinity River Authority (TRA) running along Cedar Hill Road. There is an 18” and a 24” WW line. Install a test plug in the 96-inch water pipeline at Cedar Hill Road and a discharge blow-off MH on each side of it and treat each section of the pipeline as two separate pipelines for disinfection purposes.

iii. Coordinate and seek approval from TRA for the discharge of the heavily chlorinated water to the 18” or the 24” TRA WW line.

iv. After all heavily chlorinated water has been discharged, enough water will have to be drained to allow for the removal of the internal test plug at station 96+82.50 and then refill the new water pipeline.

f. The proposed 78-inch pipeline at Sorcey Pump Station shall be tested and disinfected at the same time when the 96-inch is tested and disinfected.

PART 2 PRODUCTS (NOT USED)

PART 3 EXECUTION

3.01 SCHEDULE DOCUMENTATION

A. Prepare and submit the following construction scheduling documents in accordance with the requirements of this section and with the 2021 COD NCTCOG DWU Addendum 108.COD. Prosecution and Progress.

1. Preliminary Construction Schedule

2. Proposed Complete Project Schedule

a. Provide sufficient detail and clarity of form and technique to plan, schedule, monitor, control and report on the progress of the Work. In addition, provide the Owner a tool to monitor and follow the progress for all phases of the Work. The Project Schedule shall comply with the various limits imposed by the scope of work and contractually specified intermediate milestones and completion dates included in the Contract. The degree of detail shall be to the satisfaction of the Owner.

b. The activities included in the Project Schedule shall be analyzed in detail to determine activity time duration in units of project working days. Duration shall be based on the craft labor, equipment, and materials required to perform each activity on a normal work-day basis. All duration shall be the result of definitive manpower and resource planning by the Contractor to perform the work in consideration of contractually defined on-site work conditions.

c. The Contractor shall provide a list of workers and designations for general and all subs to Owner’s Representative within 30 days after Notice to Proceed.

d. Near-critical paths shall be defined as those paths having 10 days or less of total float at the time of initial submission. Dangling or incomplete activity

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e. Unique activity numbering / coding system shall be required to code or identify activities by bid items, work items, areas procurement, etc.

3. At the request of the Owner’s Representative, the…