Small-Medium Diameter Pipeline Design Scope Page 1 Rev. 07/03/2023

CITY OF DALLAS

WATER UTILITIES DEPARTMENT

SCOPE OF WORK

FOR

2026 Engineering Package No. 6

SMALL AND MEDIUM SIZED WATER AND WASTEWATER MAIN DESIGNS

In Various Locations within the City of Dallas

Contract No. 26-309/310E

A. GENERAL

The purpose of following scope of work is to obtain Engineering Services required for developing construction plans and specifications for small and medium sized water and wastewater main renewal and system improvement projects at various locations within the City of Dallas. This includes the ability to provide, but is not limited to the following:

• Preliminary Investigation and Design Report

• Surveying and Base Mapping

• Right-of-Way Acquisition Documents

• Pipe Sizing and Material Specification

• Horizontal and Vertical Alignment

• General Contract Services

• Compliance with Texas Water Development Board (TWDB) Drinking Water and Clean Water State Revolving Fund Program Requirements

All Design Services shall be completed within two (2) years of the contract date as required to meet project schedules.

B. PROJECT DESCRIPTION

Design and survey of an estimated 180,000 total linear feet of small and medium sized water and wastewater main renewal and system improvement projects, consisting of approximately 180,000 total linear feet of survey length, 90,000 linear feet of 8-inch to 12-inch diameter water mains and 90,000 linear feet of 8-inch to 24-inch diameter wastewater main.

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C. GENERAL REQUIREMENTS

1. Provide all personnel, equipment, supplies, software, transportation, services, deliveries, and incidentals, etc., necessary to accomplish the Scope of Work.

2. Develop a Project Task Schedule and provide monthly progress reports sufficient to support monthly billings. Monthly status reports shall be consistent with billing period.

3. Identify and coordinate designs and recommendations of this project to meet legal and regulatory parameters, constraints, codes and applicable requirements set forth by all governing agencies, including, but not limited to, U.S. Environmental Protection Agency (EPA), the Federal Emergency Management Agency (FEMA), Army Corps of Engineers (ACOE), State of Texas, Texas Highway Department of Transportation (TxDOT), Texas Commission on Environmental Quality (TCEQ), TWDB, City of Dallas, and Dallas County or other Counties within the project limits.

4. The Consultant shall, after a thorough review of all available data from the City of Dallas, DWU and other applicable agencies, interviews with DWU personnel, and in accordance with the General and Specific Requirements stated herein, formulate, analyze, present alternatives, and make reasonable and appropriate recommendations on all design elements.

5. Identify and provide documentation for any permits that may be required by any Public Agency, property owner, or entity that may require a permit, access easement, or other such documents. Supply necessary reports, studies, and drawings to the agencies as required such that any required permits, rights of entry, or approvals can be obtained at least 60 days prior to when the construction work is scheduled for advertisement. Permit fees will be paid by DWU, unless directed otherwise by the Project Manager.

6. Attend meetings with the Project Manager and other City Staff for the purpose of information transfer, gaining input, project status, site visits, and product reviews. Conduct executive briefings as required.

7. The Consultant shall maximize the use of existing DWU information, such as reports, surveys, and available operational data. The Consultant shall confirm existing DWU information and data, as necessary. The Consultant will have access to DWU records through use of DWU Kiosk located at 2121 Main Street, 5th Floor, Dallas, TX 75201 during business hours.

8. The design and construction of the proposed projects shall be coordinated with the DWU Project Manager, other DWU Consultants, and other DWU Construction Managers.

Coordination shall include, but not be limited to, making allowances for other construction and maintenance activities within the DWU distribution and collection system, ongoing and proposed plans as identified by the Dallas Water Utilities or other Departments within the City of Dallas including private development, and other construction or planning activities that may come up from time to time.

9. Designs shall be compatible with the final alignments, grades, and known requirements of facilities occupying public Rights-of-Ways. If modifications to public Rights-or-Ways are deemed necessary, the consultant shall provide plans, specifications, field notes, etc., as may be required to obtain such Rights-of-Ways.

10. Assist DWU at public meetings and hearings when requested to do so by the Project Manager.

11. The consultant, when directed to do so by the Project Manager, shall prepare a report listing “Opinions of Probable Costs” on various alternatives to aid in determining the most cost-effective solutions. In addition, from time to time, the Project Manager may direct the consultant to produce an engineer’s opinion of various alternatives that may be presented.

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This report shall take into consideration such intangibles as quality of workmanship, availability, suitability for the intended purpose, overall compatibility of the alternatives within the DWU Systems, etc., and such tangible considerations as life-cycle costs, initial costs and regular maintenance costs.

12. The consultant shall prepare all necessary plans, specifications, reports, technical memorandums, status papers, etc., that may be required for this project, and submit to the City for review. After each item has been reviewed by the City, the Consultant shall make all necessary corrections and re-submit to the City for Final Review.

13. The consultant shall evaluate sustainable practices applicable to water and wastewater replacement construction projects. The evaluation shall include energy conservation, waste reduction, resource conservation, and water saving strategies and measures.

14. The Consultant shall produce all design drawings in the latest version of Bentley System, Inc’s. MicroStation Computer Aided Design and Drafting system (CADD). All design drawings shall be created electronically and shall meet the requirements of the latest edition of the Dallas Water Utilities Drafting Standards for Water/Wastewater Pipeline Projects, available from the following location:

https://dallascityhall.com/departments/waterutilities/DCH%20Documents/pdf/PipelineDrafting_stand ards_july2012.pdf In addition, the Consultant shall submit all electronic data in the form and format listed herein.

15. Provide the required information for DWU’s fixed asset system as provided by Project Manager.

16. The Consultant shall prepare all necessary plans, specifications, reports, technical memorandums, status papers, etc., in accordance with TWDB requirements for Drinking Water and Clean Water State Revolving Fund Programs. Program Guidance, Manuals and Certification requirements may be found at the following location:

http://www.twdb.texas.gov/financial/instructions/.

D. PROJECT SCOPE

1. Preliminary Investigation:

Review existing materials and reports obtained from DWU or City of Dallas that are relevant to this project and perform field investigations necessary to evaluate proposed alignments.

Coordinate with utility companies, other agencies, stormwater drainage management and the City of Dallas Department of Public Works to obtain information on existing and proposed facilities in the project areas. The information and data obtained is to be used in the development of design plans and specifications for this project, and includes, but is not limited to, the following:

a. Existing survey data.

b. Existing water and sewer GIS Maps, as-built markups, record drawings, and design drawings.

c. DWU WebGIS Kiosk System (located at 2121 Main Street, 5th Floor, Dallas, TX 75201) where existing GIS and electronic data for water and sewer infrastructure may be obtained.

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d. Property ownership and tax plat information from Dallas County, Collin County, etc.

e. Available data from the Water and Wastewater Operations Divisions and Permits Section.

f. DWU Standard Drawings for Water and Wastewater Construction available at:

https://dallascityhall.com/departments/waterutilities/DCH%20Documents/pdf/DWU-PRO-019-

ENG_DWUStandardDrawingsForWaterAndWastewaterConstruction.pdf

g. The latest edition of the Dallas Water Utilities Drafting Standards for Water/Wastewater Pipeline Projects, available from the following location:

http://dallascityhall.com/departments/waterutilities/DCH%20Documents/pdf/PipelineDraft ing_standards_july2012.pdf

h. DWU Drafting Resource Files available from the following location:

http://dallascityhall.com/departments/waterutilities/Pages/dwu_design_standards_draftin g_resource.aspx

i. DWU Bid Item and Cost Estimating Manual, Latest Edition, available from the following location:

https://dallascityhall.com/departments/waterutilities/DCH%20Documents/pdf/DWU-PRO- 020-ENG_DWUBidItemAndCostEstimatingManual.pdf

j. DWU Water and Wastewater Pipeline Design Manual, Latest Edition, available from the following location:

https://dallascityhall.com/departments/waterutilities/DCH%20Documents/pdf/Water_and _Wastewater_Procedures_and_Design_Manual_October_2015.pdf

k. Texas Commission on Environmental Quality (TCEQ), although DWU adheres to all of the design guidelines required by TCEQ, the following chapters are often referred to:

Chapter 290: Public Drinking Water:

https://www.tceq.texas.gov/drinkingwater/pdw_rules.html

Chapter 217: Design Criteria for Domestic Wastewater Systems:

https://www.tceq.texas.gov/permitting/wastewater/plans/design-rules

l. Fifth Edition of North Central Texas Council of Governments (NCTCOG) Public Works Construction Standards, North Central Texas, available from NCTCOG, 616 Six Flags Drive, Arlington, TX 76011 (800) 272-3921.

m. City of Dallas Addendum to the North Central Texas Council of Governments Public Works Construction Standards, North Central Texas, Latest Edition, available from the following location:

https://dallascityhall.com/departments/waterutilities/DCH%20Documents/pdf/2021%20C OD%20NCTCOG%20Addendum.pdf

n. DWU standard Technical Specification for Water & Wastewater Construction, Latest Edition available from the following location:

https://dallascityhall.com/departments/waterutilities/DCH%20Documents/DWU-PRO- 022-ENG.pdf

o. Pavement Cut and Repair Standards Manual, Department of Public Works, Latest Edition, available from the following location:

https://dallascityhall.com/departments/sustainabledevelopment/DCH%20documents/pdf/ CutManualOct2003.pdf

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p. Existing Wastewater Collection TV inspection tapes or reports including but not limited to CCTV, Red Zone and Inframetrix. This information is available from the DWU Project Manager.

q. DWU Soil-Groundwater Management Manual for Construction Sites and Utility Design, latest Edition, available from the following location:

http://dallascityhall.com/departments/waterutilities/DCH%20Documents/pdf/DWU- SGW_Manual.pdf

r. Comprehensive Wastewater Collection System Assessment Update Report, April 2020, as provided by Project Manager

s. 2014 Long Range Water Supply Plan to 2070 and Beyond, December 2015, available from the following location:

http://dallascityhall.com/departments/waterutilities/DCH%20Documents/2014_LRWSP_F inal_Report_all_11302015.pdf

t. Water Delivery Comprehensive System Assessment and Update Report, January 2021, as provided by Project Manager

2. Water and Wastewater Main Condition Check

a. Identify existing water and wastewater mains adjacent to replacement mains from as-built records and preliminary GIS investigation.

b. Review existing condition checks on adjacent water and wastewater mains including physical inspection, required TV inspection, examination of maintenance records, etc. as provided by Project Manager.

c. Make recommendation for replacement of adjacent water and wastewater mains based on condition checks and DWU criteria.

3. Preliminary Design Report

Develop a design report which is consistent with TWDB State Revolving Fund requirements and the following at a minimum, for each segment to be replaced or rehabilitated:

a. Segment description based on Pipeline Identification number (PID) - From manhole to next manhole for wastewater and from street/alley intersection to street/alley intersection for water.

b. Support Data and Exhibits - Water / Sewer Maps, Location Maps, TV Inspection Summary Reports, Aerial Photo(s) of Proposed Alignment in GIS exhibit, etc.

c. The Consultant shall make recommendations for each pipe segment and include the following:

1. Proposed pipe size(s)

2. Proposed pipe material(s)

3. Proposed alignment of main(s)

4. Proposed and existing adjacent water/wastewater mains, franchise utilities, and storm lines. The Consultant will note the need and make recommendations for potential Subsurface Utilities Engineering (SUE) Work in project area.

5. Need for additional investigations, including but not limited to television inspection, Small-Medium Diameter Pipeline Design Scope Page 6 Rev. 07/03/2023 condition assessments, etc.

6. Proposed Method of Construction

a. Evaluation of open Cut or trenchless as the best approach for the project.

b. Consultant shall calculate the critical trench ratio as described in 8.4.3.3 of the DWU Water and Wastewater Procedures and Design Manual, latest edition.

c. When applicable discuss trenchless method preferred given initial information including but not limited to, Cured-in-Place (CIPP), Pipe Bursting, Sliplining, Directional drilling, tunneling, swage lining, etc.

d. Under the concept of value engineering, estimate potential savings including financial and social costs of not cutting the pavement, when applicable based on the segments that are trenchless versus open cut.

7. Proposed pavement restoration and replacement needs when applicable.

8. Approximate age of existing pavement.

a. Linear feet less than 5 years old.

b. Linear feet greater than 5 years old.

9. Pavement information

a. Street Classification (M-2-U, R-2-U, etc)

b. Street Material (Asphalt, concrete, etc)

c. Material Thickness, in inches

d. Street Condition Rating

10. Potential Permits needed on project including but not limited to:

a. Corps of Engineers Permit

b. DART Permit

c. TxDOT Permit

d. TCEQ Permit

e. Railroad Permit

f. City of Dallas Street Cut Permit

11. Potential Coordination with outside agencies and stakeholders including but not limited to:

a. Trinity River Authority (TRA)

b. Dallas Area Rapid Transit (DART)

c. Dallas County

d. Collin County

e. Texas Department of Transportation (TxDOT). Obtain documents to confirm that pavement is or is not under the jurisdiction of TxDOT.

f. NTTA

g. Customer Cities

h. Other Cities where the DWU Utilities may be in non-City of Dallas Public Right of

Way (ROW) or public owned easements.

i. Neighborhood Associations and Community Groups; Advocacy Groups and

Special Purpose Associations

12. Potential Rights of Ways (ROW) or easements required for the project.

a. Number of fieldnote sets required

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b. Approximate area of new easement(s) or new property to be purchased in fee simple that is required to complete this project.

13. The need for Potential Environmental Services required for project(s).

a. File Research.

b. Phase 1 Environmental Investigation(s) consistent with TWDB State Revolving

Fund Requirements

c. Phase 2 Environmental Investigation(s) consistent with TWDB State Revolving

Fund Requirements

14. Proposed projects by others to include:

a. Project Scope

b. Agency

c. Project Schedule

d. Impact to DWU

15. Soil Borings, if requested by the Project Manager or if recommended by the Engineer and approved by the Project Manager

16. Possible impacts to customers. This may include an analysis of inconvenience factors, alternate routes, lost business, etc.

17. Risk Analysis: Conduct risk analysis for each project PID location by developing a risk matrix with a list of possible risk factors, assessing and ranking the likelihood and severity of each risk factor, and calculating the risk impact ratings. List criteria from high to low-risk impact ratings and propose possible mitigation measures for each. Update the risk matrix during the design process and make it part of deliverables during each project delivery stage. Some of the suggested risk criteria to consider are:

a. Impacts to Property/Stakeholders - High profile properties, hospital emergency rooms, schools, accessibility for construction, maintaining business accessibility, maintaining emergency ingress/egress (hospitals/neighborhoods)

b. Constructability - Proximity to utilities/buildings/bridges, ground water, storm channels, tunnels, bridge piers, traffic control concerns, construction methods possible, high risk utilities (petroleum, high pressure gas, electric transmission mains), work that requires specialty contractors, major intersection locations.

c. Construction Schedule - Permits/property acquisition/easements, avoiding certain areas at certain times of year (e.g., hotel conference times, golf courses at tournament times etc.)

18. Coordination with DWU Stormwater.

a. Use of web GIS and field visits to screen for any existing stormwater mains and coordination with DWU Stormwater Operations to investigate conditions of the existing main and identify any stormwater improvement need within pipeline project limits.

b. During preliminary investigation, if a need is identified to include stormwater improvement within proposed pipeline project limit, incorporate the additional scope of stormwater work in the final design. Work with DWU Pipeline Project Manager and DWU Stormwater Project Management to establish additional scope and fee for stormwater work.

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c. Deliverables:

1. Each report will be up to 10 pages in length.

2. A combination of the data from the Recommendations [above] will be provided in

Tabular (Excel) format for transition into DWU Oracle-based GIS system. This information will be provided directly to the DWU Project Manager on USB drive containing the report in digital format.

3. One hard copy with color photographs.

d. Provide preliminary independent opinion of probable cost for each PID segment.

4. Topographic Surveys

The Consultant shall follow provisions of Appendix C and D of DWU Water and Wastewater Pipeline Design Manual, Latest Edition and City of Dallas Public Works and Transportation Field Note Guidelines, May 2011 edition. The Consultant shall obtain the following survey data and apply them in the development of pipeline construction plans:

a. Establish and monument the survey baseline in accordance with the DWU Water and Wastewater Pipeline Design Manual.

b. Establish Vertical Control (Bench Marks) in accordance with the DWU Water and Wastewater Pipeline Design Manual.

c. Perform SUE method as requested by DWU Project Manager (PM) or as recommended by the Engineer and approved by the Project Manager (Level A or B). This is particularly needed in areas of high utility congestion, like the Dallas Central Business District.

d. Identify existing manhole diameters, invert(s) and rim elevation(s).

e. Identify existing pavement type and thickness.

f. Identify locations and elevations of all underground utilities, which may be in conflict.

Identify and locate all underground utilities or structures that may be within four (4) foot parallel to or across the proposed embedment zone.

g. Locate and establish control from the City’s existing benchmarks (at least two Benchmarks for each location). Benchmark file can be found here:

http://dallascityhall.com/departments/waterutilities/DCH%20Documents/pdf/benchmark_ 042014.pdf

h. The Consultant shall utilize the DWU drafting resource files to create design files.

5. Geotechnical and Environmental Evaluation Geotechnical investigation may be required if recommended by the consultant and approved by the DWU Project Manager. Consultant shall use the DWU Soil Groundwater Management Manual for Construction Sites and Utility Design to select the appropriate trench, pipe, location, and other items required for successful construction of the project without unnecessary delays.

Environmental due diligence for each project location should be made to develop designs and specifications for areas impacted when required. It is ultimately the Engineer’s responsibility to select the appropriate pipe, embedment, gaskets, and other controls, depending on the specific circumstances of the project.

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6. Easements Provide suitable documents and field notes necessary to acquire temporary and/or permanent easements for construction, where required by Project Manager. All field surveying and field notes shall be prepared in accordance with procedures established by the City of Dallas Surveyor as shown in DWU Water and Wastewater Procedures and Design Manual Appendix D and E.

7. Design Services The following must be included as a minimum:

a. Design and coordinate with other utility companies to ensure proper clearance for the proposed pipeline alignment. Upon request provide a list of all contacted utility representatives to DWU Project Manager that includes names of people contacted, phone numbers, email addresses, physical location, etc. Refer to DWU Design Manual for two step utility coordination requirements.

b. Create Presentations for Public Meetings and assist DWU at these meetings as requested

c. Prepare construction drawings and technical specifications required for the water and wastewater replacement projects, in accordance with the applicable DWU, state and federal regulations, requirements and guidelines. DWU requirements are located on http://dallascityhall.com/departments/waterutilities/Pages/dwu_design_standards.aspx

8. Final Design Deliverables The Design Consultant shall prepare construction plans as required for each location independently. The plans shall be in conformance with all applicable DWU Standards, Policies, and Criteria, etc. Plans shall be created in a professional manner and be adequate to advertise for construction bids. Final deliverables shall include but not be limited to the following:

a. Prepare final design plan and profile sheets as shown in the DWU Drafting Resource Files available from the following location:

http://dallascityhall.com/departments/waterutilities/Pages/dwu_design_standards_draftin g_resource.aspx

b. Prepare project layout control showing pertinent survey data on the plan and profile sheets and all pertinent construction notes.

c. Confirm recommendations from design report given information gathered during design.

Finalize the methodology of construction as either open cut or trenchless method. If trenchless is chosen to specify which method would be best to utilize.

d. Finalize horizontal and vertical utility locations on the plan and profile sheets.

e. Finalize special design considerations and locations of appurtenances as requested by Project Manager.

f. Finalize pipeline plan and profile designs; identify locations of all conflicts; adjust horizontal and vertical alignment to optimize hydraulics, eliminate conflicts, and maximize utility clearance.

g. Finalize plan and profile designs for DWU water and wastewater relocations, other utility relocations and adjustments.

h. Identify and specify pipe materials based on DWU design criteria and soil types.

i. Provide coordination required to maintain continuous service for all utility and service lines. This includes but is not limited to bypass pumping plans and temporary service

Small-Medium Diameter Pipeline Design Scope Page 10 Rev. 07/03/2023 plans.

j. Prepare Traffic Control Plans upon request of Project Manager for construction activities within specific project limits or areas leading to or from the project site(s). Traffic Control Plans shall be sealed by the responsible Engineer (Payment will be under Special Services).

k. If required by the Project Manager, the Consultant will prepare final design reports for any and all pipeline segments of a type and style acceptable to the Texas Commission on Environmental Quality (TCEQ). Additionally, if required by the Project Manager, the Consultant will obtain approval of all requested design reports from the TCEQ.

l. Provide up to ten sets of final plans, as directed by the Project Manager.

m. Provide three copies of original signed, sealed, and notarized (if required) copies of City approved easements, field notes and all pertinent documentation to Project Manager.

n. Storm water pollution prevention plan (SWP3) for the construction activities within the project limits consistent with City of Dallas and NCTCOG guidelines as required (Payment will be under Special Services).

o. Provide additional plans, specifications, reports, technical memorandums, status papers, etc., in accordance with TWDB requirements for Drinking Water and Clean Water State Revolving Fund Programs.

9. Contract Services Provide the following contract services:

a. Prepare Special Provisions and Special Technical Specification for use in Bid Specification documents, including documents consistent with TWDB State Revolving Fund requirements. DWU will prepare general Contract Specifications. Special Provisions are only those specifications not specifically in the DWU Standard Specifications Manual, NCTCOG Public Works Construction Standards, or the City of Dallas Addendum to the NCTCOG Public Works Construction Standard, or that need to be modified from current DWU standards for project specific reasons.

b. Prepare Engineer’s Estimate of Probable Costs and Bid Item tabulations consistent with the DWU Bid Item and Cost Estimating Manual, Latest Edition. Engineer shall use anticipated market costs and not rely on older prices that may be published in DWU manuals. This shall be provided to the Project Manager in Excel format as shown in the Probable Cost Template at:

http://dallascityhall.com/departments/waterutilities/Pages/dwu_design_standards.aspx

c. Provide other required construction services as requested by DWU. This shall include but not be limited to: plan revisions, submittal reviews, periodic site visits, review of proposed change orders, attend pre-bid meetings, etc.

d. After completion of the design, the Consultant will be required to attend what is referred to as a “Project Partnering Session” wherein the Consultant will be expected to provide a one to two-hour presentation of the various Project Segments – the design considerations, reasons for any unusual designs, discussions of any expected construction difficulties, etc. In attendance at this meeting will be the Selected Prime Contractor, key Sub-Contractors, DWU personnel, and other interested parties. This meeting will take place at a time and place to be determined, but will usually happen from one to two months, but as many as 12 months, after the Prime Contractor has been selected through the bid process. This meeting will generally require 3 to 4 hours of

Small-Medium Diameter Pipeline Design Scope Page 11 Rev. 07/03/2023 participation for two to three of the Consultant’s design personnel.

e. Provide Project Manager with final information for Database through approved combined spreadsheet. DWU Project Manager will provide this form to the Consultant.

f. Deliver one set of sealed Mylar design drawings and special specifications to Project Manager.

g. Furnish files of the scanned images of the final sealed drawings and specifications with the construction records posting on a USB drive to Project Manager.

10. Plan Drawings

Submit all original CADD Drawings to DWU, including any special appurtenance and detail sheets, with the following stipulations:

a. All submitted CADD Drawings shall be done in ink (CADD Plotter) on four-mil thick double matte Mylar.

b. All design and plan drawings shall be produced in an electronic file format created by a CADD system completely compatible with the latest version of Bentley System Inc.’s MicroStation®.

c. Each final design sheet must be in its own computer file in a format completely compatible with the latest version of Bentley System Inc.’s MicroStation® and each final design sheet will incorporate the computer file extension “.dgn” as the last characters in the file’s name. No reference files, no special or proprietary cell libraries, no special or proprietary font files, and no special or proprietary line styles, shall be attached. With the exception of Bentley System Inc.’s proprietary data files for applications such as InRoads® or InRoads Survey®, no other proprietary files may be included.

d. Each individual design sheet shall be provided in a “Tagged Image File Format (TIFF)”, latest version (this extension may be abbreviated to “tif”).

e. Additionally, each individual design sheet shall be provided in the latest version in the Public Domain of the “Portable Document Format (PDF)” type file.

f. Should the Consultant desire to supply electronic files in some other format or created by some other program, prior approval from the Project Manager shall be required.

11. CADD Deliverables

a. All reference files and cell libraries used to create the design sheets shall be included. If proprietary files for fonts, lines styles, aerial photographs, or other such attachments are included, legal and binding permanent licenses for the use of such files shall be included.

b. Detail sheets, special appurtenances, and other such design details should be supplied as outlined above. Any proprietary or copyrighted details shall include a release from the copyright holder allowing the City of Dallas or Dallas Water Utilities to make an unlimited number of copies of the submitted special details.

12. Specification Documents The Consultant shall furnish all computer specification files, including all word processor or spreadsheet files in latest version of Microsoft Office for Windows®. Specification Document files shall be furnished on USB drive or other agreed upon media as approved by the Project Manager.

Scanned images, photographs, reports, analysis, and all other project data shall be submitted in file formats compatible with software and computers owned by the City of Dallas and Dallas Water

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Utilities. All such specification documents shall be furnished on USB drive or other agreed upon media as approved by the Project Manager.

13. Media Submittal Submittals must be on a USB flash drive media compatible with Microsoft Windows® 10. The USB drive data must be secured by software lock (password protected or locked, allow reading and downloading enabled on any computer, and protected so that data on the drive cannot be modified and no additional data can be added to the drive). Note: The intent is to maintain an archival record of the actual file submitted in a means that CANNOT be modified.

Each USB drive shall have a drive name indicating the contract number, consultant name, and submittal descriptor for data type contained, (i.e.) CADD, GIS, 100% design drawings, etc.

Original, unmodified USB drives will be submitted to the Project Manager and ultimately filed with the Utility Automation & Integration Program of the Water Utilities Department, located at Dallas City Hall.

Should the Consultant desire to furnish any of the required submittals in another type of media, the Consultant shall seek the approval of the Project Manager.

14. Digital Drawing File Information

a. The USB drive shall contain an electronic copy of the digital drawing file in MicroStation DGN format. A compressed and self-extracting file type (.ZIP) of these is acceptable.

1. These submittals must follow the specifications listed above.

2. All digital drawing files must be “stand-alone” without the necessity of attaching

Reference or X-Ref files or modifying levels and layers.

b. The USB drive shall also contain a copy of the transmittal letter accompanying the submittal in Microsoft Word for Windows® software, current release, or other compatible text file format of MS “Word” is the preferred document software.

15. Digital Drawing Registration and Survey Control

a. Digital drawing file data shall be in U.S. Survey Feet for distances, and degrees, minutes, and seconds for bearings and angles.

b. Northing, Easting, and Elevation State Plane Grid Coordinates for water and wastewater features shall be provided in a format that may be incorporated into DWU’s ESRI ArcGIS® system. The Project Manager will provide more information concerning formats and expectations on request.

c. The data provided shall be referenced to the State Plane Coordinate System, Texas North Central Zone 4202, North American Datum of 1983, U.S. Survey Feet. For the horizontal coordinate system, the projected coordinate system name is:

NAD_1983_StatePlane_Texas_North_Central_FIPS_4202_Feet, the geographic coordinate system name is: GCS_North_American_1988.

d. The accuracy will be at a minimum 3 cm (horizontal).

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17. Hydraulic Modeling If Consultants indicated they have hydraulic modeling experience/expertise, some of the selected consultants may be requested to provide hydraulic modeling services. A detailed scope of work will be provided to the selected consultants. The following is a list of tasks that may be included in the detailed scope of work:

a. Incorporation of InfoWorks ICM Wastewater (WW) System Model with WW Treatment Plant Model with into a single network model. Review combined WW System and WW Treatment Plant model to determine hydraulic capacities in collections system and treatment plants.

b. Review existing WW model and observed sanitary sewer overflows (SSOs) to add pipe network in specific areas of the model.

c. Conduct dry and wet weather flow monitoring, rainfall monitoring, and inflow / infiltration (I / I) analysis for specified locations.

d. Calibrate updated WW model for existing dry and wet weather conditions.

e. Conduct existing system performance with updated WW model and identify system deficiencies. Conduct rainfall sensitivity analysis.

f. Update future population and employment data used to calculate flows for future scenarios in the WW model.

g. Develop remedial measures for SSOs and identify near-term and long-term projects that provide the greatest cost-benefit ratio.

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APPROVED:

Jason Wu Date

Superintendent, Water Utilities

Jeffrey Hadaway Date

Superintendent, Water Utilities

Rishi Bhattarai Date

Engineering Program Administrator

Leslie Castillo Date

Assistant Director (I), Capital Improvements

Nosa Irenumaagho Date

Assistant Director, Wastewater Operations

Pat Donovan Date

Assistant Director, Water Delivery

CONCUR:

Sarah Standifer Date

Director, Water Utilities Department