Part6-Scope_of_Work-3.26.2026.pdf

Part 6 – Scope of Work Page 1 of 16

PROGRESSIVE DESIGN-BUILD SCOPE OF WORK (PROJECT

REQUIREMENTS - PRELIMINARY STAGE)

PART 1 - GENERAL REQUIREMENTS

1.1 SUMMARY

A. Phase II of the Anacostia Trunk Sewer (ATS) Rehabilitation will address the section of the 102-inch trunk sewer from manhole 09012018J at WSSC Water’s Anacostia Depot downstream to manhole 09012013J at the Anacostia WWPS. This section comprises approximately 6,620 linear feet of reinforced concrete sewer pipe. This section is parallel to the existing 60-inch/72-inch Relief Sewer. Additionally, the 30-inch reinforced concrete Dueling Creek trunk sewer connects to the 102-inch ATS at a 36-inch branch connection. Flow from this connecting sewer may require bypassing during construction, depending on the proposed rehabilitation method selected.

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B. PROJECT GOALS AND EXPECTATIONS

1. The ultimate goal of the Project is to rehabilitate the existing ATS between manholes

09012018J to 09012013J to provide a minimum 50-year life expectancy.

2. Sediment and erosion control, excavation, backfill, concrete structures, paving, surface restoration, and other elements of the Design-Build Work shall be in conformance with the Conceptual Documents, and with local codes and standards

3. The Project will be executed as a Progressive Design Build (PDB) contract. This requires a partnership between the WSSC Water and the PDB Team in a collaborative relationship for Project success.

4. Perform the work in a Preliminary Stage and a Completion Stage as described in the Agreement.

5. Minimize risks to Project success through risk identification and monitoring to address elements that potentially impact construction cost or schedule.

6. Meet Operations’ requirements for capacity, operation, maintenance, and reliability for the

ATS.

7. Obtain a Guaranteed Maximum Price (GMP) for the complete rehabilitation of the ATS that addresses the Project goals and maintains system capacity during rehabilitation.

8. Implement a safety program that addresses safety issues throughout construction.

1.2 RELATED DOCUMENTS

A. The following Conceptual Stage documents are provided as part of this Request for Proposals:

1. Design-Build Scope of Work

2. Record Drawings of Prior Construction and Rehabilitation

3. Reports and Data of Prior Sewer Inspections

B. The following additional documents will be made available to the selected Design-Builder:

1. CCTV of Sewer Inspections C. In cases where there are discrepancies between the requirements in the Conceptual Documents, the Design-Builder shall bring the discrepancies to the attention of WSSC during the Preliminary Stage of the project.

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1.3 SCOPE OF WORK

A. Phase II of the ATS Rehabilitation will address the section of the 102-inch trunk sewer from manhole 09012018J at WSSC Water’s Anacostia Depot downstream to manhole 09012013J at the Anacostia WWPS. This section comprises approximately 6,620 linear feet of reinforced concrete sewer pipe. This section is paralleled by the existing 60-inch/72-inch Relief Sewer. Additionally, the 30-inch reinforced concrete Dueling Creek trunk sewer connects to the 102-inch ATS at a 36-inch branch connection. Flow from this connecting sewer may require bypassing during construction, depending on the proposed rehabilitation method selected.

B. The PDB Team will be responsible for investigations, design, permitting, construction, and commissioning of the rehabilitation of the ATS Phase II. The Project will require existing data review and evaluation, performing field investigations, providing assistance with permitting and right of way acquisition, engineering, preparation of reports and cost estimates, preparing construction plans, and performing construction of the recommended rehabilitation. The primary activity of the Study and Report Phase is the preparation of the Basis of Design Report (BODR).

The Preliminary Technical Documents Phase will primarily consist of developing the detailed construction plans and specifications to the 70% level, with a GMP to complete the proposed work under the Completion Stage of the Project.

C. While the detailed scope of work for all phases of the Project will be established by collaborative negotiations between WSSC Water and the PDB Team, the following is a general overview of the expected breakdown of the primary tasks.

1.3.1 BASIC SERVICES: PRELIMINARY STAGE

A. Study and Report Phase

1. The Study and Report Phase of the Preliminary Stage shall include:

a. Data collection and review, including record drawings, existing utility investigations, review of prior pipeline investigation reports and CCTV records, existing utility investigations, and site visits.

b. Field investigations including topographic surveys, geotechnical investigations, subsurface utility engineering (SUE), and test pits.

c. Environmental evaluations including wetland delineation and jurisdictional determination (if required); forest stand delineation; rare, threatened, and endangered species and other protected habitat review; and stream classification and impact evaluations.

d. Right of way evaluations and surveys to assess right of way impacts for construction and construction access.

e. Identifying permit requirements and preparing supporting documents for permit applications in coordination with the Owner Advisor (OA) Team.

f. Identifying easement and right of entry requirements and preparing supporting documents for WSSC Water Right of Way staff’s use.

g. Evaluating options for rehabilitating the ATS Phase II, including methods, materials, management of existing flow, construction access requirements, permitting and mitigation requirements, right of way requirements, and costs.

h. Evaluating the existing Relief Sewer and its capacity for flow bypassing during rehabilitation of the ATS, including an assessment of the 42-inch valve that connects the

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Relief Sewer to the Anacostia Pumping Station.

i. Preparing the Basis of Design Report that summarizes the evaluations with supporting data, sketches, and exhibits and provides a recommended approach and estimated cost.

j. Developing the scope of work and cost proposal for the work to be performed under the Preliminary Technical Documents Phase.

2. The Design-Builder shall:

a. Consult with Owner as needed to define and clarify Owner’s requirements for the Project, as set forth in the Conceptual Documents or otherwise, including design objectives and constraints; space, capacity and performance requirements; flexibility and expandability needs; quality standards; and Owner’s budgetary limitations.

b. Identify and review available data, record drawings, existing utility data, information, reports, facilities plans, and site evaluations; obtain such items from Owner or others.

c. Request that Owner obtain data or services that are not part of Design-Builder’s Preliminary Stage Services and are reasonably required to enable Design-Builder to complete its Preliminary Stage Services.

d. Identify one or more potential solutions to meet Owner’s Project requirements, and study and evaluate such potential solution(s).

3. Identify and analyze relevant requirements of governmental authorities having jurisdictiPon over the Project; consult with such governmental authorities as necessary.

a. Visit the Site(s) to review existing conditions and facilities, unless such visits are not necessary or applicable to meeting the Study and Report objectives.

b. Perform field investigations deemed necessary to support the alternatives evaluation, recommendations, and preliminary costs estimates for the Preliminary Engineering Report.

c. Perform field investigation and prepare data necessary to support the permit applications and right of way documents being prepared by the Owner.

d. Review any environmental assessments, impact statements, and permit documents furnished by Owner, and analyze the effect of any such environmental documents (including any mitigation measures identified in the documents) on the Project, including the contemplated design and construction.

e. Recommend to Owner those solutions which in Design-Builder’s judgment meet Owner’s requirements for the Project.

f. If identified in the negotiated Scope of Work for the Preliminary Stage or as part of a Contract Change Order, perform such preliminary field work, including sewer cleaning, dewatering, bypassing, and inspection, as determined to be necessary to effectively perform the evaluation of alternatives and develop a preliminary estimate of the cost of the Project.

4. repare a Preliminary Engineering Report (the “Report”, or “Basis of Design Report”) which will, as appropriate, contain an evaluation of alternatives, schematic layouts, sketches and conceptual design criteria, and appropriate exhibits; and indicate the applicable requirements, considerations involved, and Design-Builder’s recommended solutions. This

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Report will be accompanied by Design-Builder’s estimate of Design-Build Cost for each recommended solution and the Design-Builder’s Underground Facilities Procedure.

a. In the Report, advise Owner of any limitations on the use or applicability of the Report.

b. If requested to do so by Owner, assist Owner in identifying opportunities for enhancing the sustainability of the Project.

c. Use ASCE 38, “Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data” as the basis for developing a scope of work and procedure for the identification and mapping of existing utilities, consistent with the provisions of Paragraph

5.05 of the General Conditions regarding Underground Facilities.

d. Develop a scope of work and survey limits for any topographic and other surveys necessary for design.

e. If Owner and Design-Builder have not already stipulated that certain Work will be performed by Construction Subcontractors selected on a competitive-bid basis (or by Design-Builder if it bids on such work and is the successful bidder), identify Construction Subcontract bid packages that in Design-Builder’s judgment should be let by competitive bidding.

f. Perform or furnish any additional Study and Report Phase tasks or deliverables established in the Preliminary Stage scope of work.

g. Furnish 4 paper and 1 electronic review copies of the Report (and any other deliverables) to Owner pursuant to the Preliminary Stage Schedule and review it with Owner.

h. Furnish 1 paper and 1 electronic copy of a Class 3 cost estimate

i. Furnish 1 paper and 1 electronic copy of a preliminary construction schedule, including itemized lead time estimates for any equipment requiring more than 3 months to deliver.

j. Revise the Report (and any other deliverables) in response to Owner’s comments, as appropriate, and furnish 4 paper and 1 electronic copy of the revised Report (and any other deliverables) to the Owner pursuant to the Preliminary Stage Schedule.

5. Design-Builder’s Work under the Study and Report Phase of the Preliminary Stage will be considered complete on the date when Design-Builder has delivered the copies of the revised Report (and any other deliverables) to Owner, and Owner provides written confirmation of acceptance of the Report.

B. Preliminary Technical Documents Phase

1. The work under the Preliminary Technical Documents Phase shall include:

a. Performing any early construction tasks recommended by the PDB Team to be performed prior to the Completion Stage, such as the pipeline condition assessment as noted below.

b. Preparing the Preliminary Design documents (plans, outline specifications, calculations) to a 30% level of completion for WSSC Water review with an updated cost estimate.

c. Preparing Preliminary Design documents (plans, specifications, calculations) to a 70% level of completion with an updated cost estimate.

d. Developing the scope of work, schedule, risk register, and cost proposal for the work to be

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2. After acceptance by Owner of the Report, selection by Owner of a recommended solution and indication of any specific modifications or changes in the scope, extent, character or design requirements of the Project desired by Owner, and upon written authorization from Owner, Design-Builder shall:

a. Conduct necessary field surveys and topographic and utility mapping for the purpose of preparing Preliminary Technical Documents. Comply with the scope of work and procedure for the identification and mapping of existing utilities selected during the Study and Report phase based on ASCE 38, “Standard Guideline for the Collection and Depiction of Existing Subsurface Utility Data,” consistent with the provisions of Paragraph 5.05 of the General Conditions.

b. Visit the Site as needed to prepare the Preliminary Technical Documents.

c. Make measured drawings and conduct additional investigation of the Site.

d. Perform any early construction tasks recommended by the Design-Builder and agreed to by the Owner to be necessary the development of the Preliminary Technical Documents.

e. Prepare or furnish an interim review submittal consisting of the 30% complete Preliminary Technical Documents (including but not limited to design criteria, preliminary drawings, outline specifications, and written descriptions of the Project) that show or describe the character, scope, and intent of, the Construction to be performed or furnished by Design-Builder in the Completion Stage. The Preliminary Technical Documents shall be based on or consistent with the Report unless noted otherwise.

f. Prepare or furnish Preliminary Technical Documents (including but not limited to final design criteria, preliminary drawings, outline specifications, and written descriptions of the Project) that show or describe the character, scope, and intent of, the Construction to be performed or furnished by Design-Builder in the Completion Stage. The Preliminary Technical Documents shall be based on or consistent with the Report unless noted otherwise. The Preliminary Technical Documents will be taken to a point of 70 percent of the final design.

g. Provide in writing to Owner descriptions of any deviations in the Preliminary Technical Documents from the Contract Documents, particularly the Conceptual Documents and the excerpts from the Design-Builder’s proposal, or the Report.

h. Furnish to Owner 4 paper and 1 electronic final copies of the Preliminary Technical Documents according to the Preliminary Stage Schedule, and review them with Owner.

i. Revise the Preliminary Technical Documents in response to Owner’s comments, as appropriate, and furnish 4 paper and 1 electronic copies of the revised Preliminary Technical Documents to the Owner pursuant to the Preliminary Stage Schedule.

j. Furnish 1 paper and 1 electronic copy of an update to the Class 3 cost estimate, if this submission is more than 45 days after the initial Study and Report.

k. Furnish 1 paper and 1 electronic copy of an update to the preliminary construction schedule with lead time estimates, if this submission is more than 45 days after the initial Study and Report. Design-Builder’s Work under the Preliminary Technical Documents

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Phase of the Preliminary Stage will be considered complete on the date when Design- Builder has delivered final copies of the Preliminary Technical Documents to Owner.

l. During the Preliminary Technical Documents Phase, the PDB Team will support WSSC Water with two Community Outreach meetings. The PDB Team will prepare mailing lists, graphics, and PowerPoint slides as requested by WSSC, attend the outreach meetings, and provide summary minutes of questions and answers.

C. Construction Planning

1. Planning Tasks: Concurrent with Design-Builder’s development of the Preliminary Technical Documents and Scope of Work, Design-Builder shall begin to plan and organize anticipated construction activities. Tasks shall include (but are not limited to) the following:

a. Identification of potential Construction Subcontractors and Suppliers.

b. Constructability reviews, with ongoing feedback to the design professionals.

c. Development and refinement of the construction schedule, with the addition of greater scheduling detail as the design and construction planning progresses.

d. Identification of potential for phased or fast-track construction.

e. Identification of the need for or advantage in making long lead-time equipment and materials purchases.

f. Development of Subcontract bid packages that will be let by competitive bidding.

2. Development of Completion Cost Estimate: Throughout the Preliminary Stage, Design-Builder shall develop and refine the Completion Cost Estimate, based on Site information, square-foot or similar estimated costs, the draft design, budget considerations, construction planning, projected schedule, quantity estimates, unit prices, cost of materials and labor, anticipated allowances, permits and taxes, storage and transportation costs, insurance costs, information from prospective Subcontractors and Suppliers, construction-phase engineering services, standard contingencies, administrative costs, Contract terms and conditions, and other relevant factors. Design-Builder shall conduct the development and refinement of the Completion Cost Estimate using a transparent “open book” process. Under the open book process:

a. Owner and Design-Builder shall meet as needed to review the status of the draft Completion Cost Estimate, including detailed line item components and supporting data and information.

b. Owner may at any time during the Preliminary Stage indicate to Design-Builder ways in which the draft Completion Cost Estimate might be improved, including opportunities for Owner to furnish materials or equipment, access to improved information regarding the Site or local conditions, changes in scope or schedule, and enhancing competition.

3. Final Completion Cost Estimate: After delivering the final Preliminary Technical Documents, as duly reviewed and revised, to Owner, as required above, Design-Builder shall prepare a final Completion Cost Estimate, based on such final Preliminary Technical Documents and all other relevant factors relevant to cost.

4. Completion Price: Pursuant to the Preliminary Stage Schedule, Design-Builder shall submit to Owner proposed Completion Price(s) as set forth in Paragraph 3.03 of the Agreement. The

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D. Permitting and Coordination with the OA Team

1. The PDB Team will be responsible for preparing a permittable design and construction approach. During all phases of the project, the PDB Team will support the OA Team to prepare permit applications and obtain approvals as required. The PDB Team shall be responsible for preparing all plans, drawings, reports, and reference documents necessary to support the permit applications. Such documentation may include, but is not limited to, traffic control plans, impact plates, delineation plans, erosion and sediment control plans, avoidance and minimization reports, graphics, drawing sets, and other documents as required or requested by the permit agencies.

2. It shall be the responsibility of the PDB Team to recognize potential construction impacts and permit requirements during the design development and to minimize such impacts so that the permit impacts are defensible and protracted permit approval efforts are avoided.

3. The OA Team will be responsible for reviewing the PDB Team’s impact evaluations and supporting documents, compiling the supporting documentation, and completing and submitting permit applications. The OA will be the liaison between the permitting agencies and the PDB Team.

4. During the Study and Report Phase, the OA Team will initiate discussions with the appropriate agencies regarding expected impacts and permit requirements for the Project.

The OA Team will submit the initial permit applications to the appropriate agencies during the Study and Report Phase of the Project. It is expected that permit approvals will be obtained during the Preliminary Technical Documents Phase of the Project. If modifications of any permits are determined to be necessary based on the development of the work during the Preliminary Stage, the PDB Team shall alert the OA Team as soon as possible, and prepare the required supporting documents to revise the permit application.

5. If any proposed Preliminary Stage activities require permit approvals, the PDB Team shall alert the OA Team, coordinate with the OA Team, and perform the required field data collection and prepare the necessary supporting documents for the OA Team’s application.

6. WSSC Water has previously obtained some permits and has initiated discussions with other agencies. Modifications to those permits may be required if the impacts identified in the PDB Team’s design differ from the previously permitted impacts, or if the permit expires. A summary of the anticipated permits and agencies is included in Table 1.1 in this Document.

7. Table 1.2 and Figure 2 in this Document provide a list of property owners adjacent to the Project site. Depending on the PDB Team’s approach to the work, agreements may be required from these or other owners/agencies for access and area for the construction work.

E. Initial Equipment and Materials Procurement

1. As Design-Builder develops the Preliminary Technical Documents, it shall:

a. Identify equipment to be installed during construction that (a) requires early procurement to allow sufficient time for manufacture or customization, and delivery to the Site, or (b) will not be readily available, or will be inordinately expensive if not procured well in

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b. Identify materials needed for construction that (a) should be procured and stockpiled to avoid potential shortages, (b) are currently priced advantageously and should be procured or ordered to avoid possible price fluctuations, or (c) require early procurement to give sufficient time for shipment and delivery.

2. In the case of any such item, Design-Builder shall propose to Owner early procurement, prior to completion of the Preliminary Technical Documents. Owner shall at its option (1) procure the item itself, and make the item available to Design-Builder during construction, (2) authorize Design-Builder to purchase the item, for mutually agreed compensation or reimbursement based on cost and standard mark-ups, or (3) inform Design-Builder that the item is not to be procured until a later point, with acknowledged acceptance by Owner of the risk of adverse price or schedule impacts.

1.3.2 ADDITIONAL SERVICES

A. Owner’s Authorization in Advance Required

1. If authorized in writing by Owner, during the Preliminary Stage, the Design-Builder shall furnish or obtain from others Additional Services of the types listed below. These services will be paid for by Owner as indicated in Article 4 of the Agreement.

a. The Project requires additional cleaning and condition assessment of two sections of the ATS system. The section of the 102-inch ATS from manhole 09012015U to 09012013J and the section of the 72-inch Relief Sewer from manhole 09012045M to manhole 09012013J are to be investigated to evaluate the existing condition, prepare inspection reports, and make recommendations for rehabilitation, if required. Any recommended rehabilitation work is expected to be performed as part of the Completion Stage work. If this cleaning and investigation work is recommended to be performed during the Preliminary Stage, and if agreed to by the Owner, the PDB Team shall prepare a detailed scope of work and cost proposal for the engineering and the field work. The scope must also include identifying the permit and right of way requirements and preparing the supporting documents for the OA Team and the WSSC Water right of way group, as noted above. If authorized by WSSC Water, this work shall be done concurrently with the other Preliminary Stage work.

b. Prepare applications or supporting documents (in addition to those furnished under Basic Services) for private or governmental grants, loans, or advances in connection with the Project; prepare or review environmental assessments and impact statements; review and evaluate the effects on the design requirements for the Project of any such statements and documents prepared by others; and assist in obtaining approvals of authorities having jurisdiction over the anticipated environmental impact of the Project.

c. Verify the accuracy of drawings or other information furnished by Owner.

d. Perform services resulting from significant changes in the scope, extent or character of the portions of the Project presented or specified by Design-Builder or its design requirements including, but not limited to, changes in size, complexity, Owner’s schedule, character of construction, or method of financing; and revise previously accepted studies, reports, technical exhibits, or other Contract Documents when such revisions are required by changes in Laws or Regulations enacted subsequent to the Effective Date of the Agreement, or are due to any other causes beyond Design-Builder’s control.

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e. Perform services required as a result of Owner’s providing incomplete or incorrect Project information.

f. Prepare for, coordinate with, participate in, and respond to structured independent review processes, including, but not limited to, construction management, cost estimating, project peer review, value engineering, and constructability review requested by Owner; and perform or furnish services required to revise studies, reports, Technical Documents or other Proposal Documents as a result of such review processes.

Table 1.1 - Preliminary List of Permit Agencies

PERMIT AGENCY

Section 404 of the Clean Water Act US Army Corps of Engineers National Park Service Right of Entry National Park Service RTE Species – Section 7 Consultation US Fish and Wildlife Service Migratory Bird Treaty Act & Bald Eagle and Golden Eagle Protection Act Compliance US Fish and Wildlife Service

Water and Sewerage Construction Permit Maryland Department of the Environment

State Wetlands and Waterways Permit Maryland Department of the Environment

Section 401 Water Quality Certification Maryland Department of the Environment

General Permit for Stormwater Associated with Construction Activity (NPDES Permit)

20-CP

Maryland Department of the Environment

Critical Area Approval Critical Area Commission Threatened & Endangered Species Consultation

Maryland Department of Natural Resources – Wildlife and Heritage

Service Cultural Resources Clearance Maryland Historical Trust Water Use Permit Maryland Department of the

Environment – Water Supply Program

Forest Conservation Approval Maryland Department of Natural Resources

Roadside Tree Permit WSSC Water Construction Permit Maryland-National Capital Park and

Planning Commission Street Access Permit City of Hyattsville Right of Entry Aggregate Industries Prince George’s County Woodland Conservation

Prince George’s County Planning Department

Stormwater Management Permit Prince George’s County Department of Permits and Inspections

Erosion and Sediment Control Plan Approval WSSC Water

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Table 1.2 - Adjacent Properties - Potential Right of Way and Right of Entry for Construction

NO. OWNER’S NAME PREMISE ADDRESS PARCEL

1 National Railroad Passenger Corp Kenilworth Ave 26 2 State of Maryland ACCOUNT UNKNOWN Null 3 United States ACCOUNT UNKNOWN Null 4 Clarke, Mae H Kenilworth Ave 120 5 WSSC Water ACCOUNT UNKNOWN Null

6 Maryland-National Capital Park and Planning Commission 2750 52nd Ave 86

7 Maryland-National Capital Park and Planning Commission 2700 52nd Ave 84

8 Bardon Inc. (Aggregate Industries) 3340 Kenilworth Ave 180 9 Bardon Inc. (Aggregate Industries) 2800 52nd Ave 30

10 Bardon Inc. (Aggregate Industries) 2820 52nd Ave Null

11 Maryland-National Capital Park and Planning Commission 52nd Ave 173

12 Airgas USA LLC. 2900 52nd Ave Null

13 Maryland-National Capital Park and Planning Commission 52nd Ave 176

14 WB LLC. 3310 Kenilworth Ave Null 15 3334 Kenilworth Ave Associates 3334 Kenilworth Ave 76

16 Maryland-National Capital Park and Planning Commission 52nd Ave 81

17 National Park Service Baltimore-Washington Parkway -

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Figure 1: Adjacent Properties Map

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1.3.3 COMPLETION STAGE SCOPE AND GMP

A. Following review of the 70% design documents and addressing comments, the PDB team will develop a detailed scope of work, schedule, and GMP proposal for the design, permitting, and rehabilitation of the ATS Phase II. The GMP proposal shall include with all Guaranteed Maximum Price proposals a written statement of its basis, which shall include the following: (a) a list of the Drawings and Specifications, including all Addenda thereto; (b) a list of the clarifications and assumptions made by the PDB Team in the preparation of the GMP proposal; (c) statement of the proposed GMP, including a statement of the estimated cost of the work organized by trade categories or systems, including allowances, contingencies, and fee (the fee cannot be calculated as costs-plus-percentage of costs); (d) a detailed critical path method schedule that includes the anticipated date of Substantial Completion upon which the proposed GMP is based; and (e) a date by which WSSC Water must accept the GMP absent an extension. The GMP proposal shall also include a summary spreadsheet by CSI Division which sets forth the costs which make up the GMP, including fee (the fee cannot be calculated as costs-plus-percentage of costs), general conditions, general requirements, and any contingency. For each Division, the PDB Team shall prepare supplemental spreadsheet setting forth each bid or proposal received by the PDB Team and shall attach to the spreadsheet the corresponding scope sheet received from each bidder or supplier as well as a copy of each bid or proposal that supports the amount set forth on the spreadsheet.

WSSC Water shall, thereby, be provided with a well-organized record of the bidding process so that WSSC Water is aware of exactly what subcontractor candidates were solicited, what prices were received and what costs are included in the GMP. The PDB Team shall provide such other and further documentation as WSSC Water may require.

B. Submit design submittals, shop drawings, product data, samples, test reports, certificates, manufacturer’s instructions, manufacturer’s field reports, operation and maintenance manuals, closeout submittals and other specified documents for review and approval in conformance with the General Conditions.

C. If WSSC Water and the PDB Team can arrive at a mutually agreeable scope and GMP, WSSC Water will prepare a Work Order to authorize the PDB Team to proceed with Part 2 of the work.

1.4 REFERENCE CODES & STANDARDS IN EFFECT

A. Notwithstanding revision dates shown in this and other Sections of the Conceptual Documents, the codes and standards applicable to this project shall be those in effect on the Effective Date of the Contract.

1.5 QUALITY ASSURANCE

A. WSSC Water’s review of a submittal shall not relieve the Design-Builder of any Design-Builder responsibilities in the Contract Documents. Review of a submittal that is incomplete, or one that has nonconformities that are not prominently indicated, followed by the discovery of unapproved nonconformities, will result in replacement of the non-conforming items at no additional cost to WSSC Water. Substitutions require the approval of WSSC Water as described in the General Conditions.

1.6 WORKMANSHIP AND MATERIALS

A. Materials and equipment shall be new and undamaged, shall be marked by the manufacturer, and shall be delivered to the construction site in the original factory packaging.

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B. Materials and equipment shall be installed in accordance with the manufacturer’s installation, operation, and maintenance instructions, and NECA installation standards that have been adopted by ANSI. In the event of apparent conflicts or discrepancies, WSSC Water shall be informed of the apparent conflict or discrepancy in writing and will instruct the Design-Builder how to proceed.

1.7 PHOTOGRAPHIC SURVEY OF EXISTING CONDITIONS

A. At the beginning of the Construction Stage of the project, to document existing conditions, the Design-Builder shall conduct a thorough photographic survey of existing conditions in all areas where work is to be performed and shall submit an Existing Conditions Survey Report to WSSC Water for the record.

1.8 PROGRESS PHOTOS

A. During the Construction Stage, post time-and-date stamped construction progress photos to WSSC Water’s Management Software weekly.

1.9 SCHEDULE – CRITICAL PATH METHOD (CPM)

A. Provide Preliminary Stage Schedules and Completion Stage Schedules using Critical Path Method

(CPM).

B. The Design-Builder shall provide sufficient resources, including qualified and experienced project managers, superintendents, technicians, supervisors, tools and construction equipment to perform the Work in accordance with the activity durations and sequences shown on the approved Preliminary Stage Schedule and Completion Stage Schedule for this project.

C. The schedules shall include in the Work Breakdown Structure the following activities:

1. Duration and completion of each major Phase and Stage of the Project

2. Owner’s review of Reports and Preliminary Technical Documents

3. Approval of Preliminary Technical Documents

4. Review of Construction Drawings

5. Approval of Construction Drawings

6. Review of shop drawings

7. Approval of shop drawings

8. Testing

9. Startup

10. Commissioning and Substantial Completion

11. Final Completion

1.10 CONSTRUCTION DRAWINGS AND CONSTRUCTION SPECIFICATIONS

A. Prepare and submit Construction Drawings and Construction Specifications for procurement and installation of the new equipment, as indicated in the Contract Documents. Attend meetings and workshops with WSSC to obtain approval of the documents prepared by the Design-Builder.

B. Construction drawings shall conform to WSSC Water Drafting Standards that can be found on the WSSC website at the following location: https://www.wsscwater.com/work-with-us/codes-standards-policies-and-procedures/wssc-civil-drafting-standards

C. Schedule a minimum of two 8-hour Design Review Workshop sessions with WSSC Water to review the Studies and Reports, Preliminary Technical Documents, and Construction Planning submittals during the Preliminary Stage.

https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.wsscwater.com%2Fwork-with-us%2Fcodes-standards-policies-and-procedures%2Fwssc-civil-drafting-standards&data=05%7C02%7CRJOSHI%40ramboll.com%7C0c124ab3a5b441777dd908dc0d4ab985%7Cc8823c91be814f89b0246c3dd789c106%7C0%7C0%7C638399861786655609%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=tDU8ccBRN6PlurZ6aGya27YbsVjI%2BesQEiuo9VXJ0lk%3D&reserved=0 https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.wsscwater.com%2Fwork-with-us%2Fcodes-standards-policies-and-procedures%2Fwssc-civil-drafting-standards&data=05%7C02%7CRJOSHI%40ramboll.com%7C0c124ab3a5b441777dd908dc0d4ab985%7Cc8823c91be814f89b0246c3dd789c106%7C0%7C0%7C638399861786655609%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=tDU8ccBRN6PlurZ6aGya27YbsVjI%2BesQEiuo9VXJ0lk%3D&reserved=0

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D. Make specified submittals for Studies and Reports, Preliminary Technical Documents, and Construction Planning submittals during the Preliminary Stage, participate in design review workshops, meetings, and teleconferences, and obtain approval of design elements prior to finalizing orders for equipment and proceeding with installation work.

1.11 SEDIMENT AND EROSION CONTROL

A. Conform to the Maryland Department of the Environment’s (MDE’s) Standard and Specifications for Soil Erosion and Sediment Control. The MDE Sediment and Erosion Control approval process is managed by the Prince George’s Soil Conservation District as the permitting authority, and local standards may apply in addition to those from MDE.

1.12 SUBMITTALS

A. In addition to conforming to the requirements described in the General Conditions and Conceptual Documents, submittals shall conform to Specifications Section 01330 Submittal Procedures, and to the following additional requirements.

B. Submittal Format

1. Submittals shall be electronic versions submitted via E-Builder.

2. Submittals shall have a complete Table of Contents with electronic bookmarked tabs corresponding to the Table of Contents headings.

C. Submittal Categories

1. Preliminary Stage Schedule

2. Field Survey Reports

3. Preliminary Technical Documents

4. Construction Planning

5. Completion Stage Schedule

6. Construction Drawings

7. Construction Specifications

8. Shop Drawings, including equipment drawings with a complete bill of materials and supporting manufacturer’s product data.

9. Product Data, marked to indicate precisely which items are proposed for this project.

10. Design Data, including design calculations, where specified

11. Closeout Submittals, including black line paper copy of Construction Drawings marked in red illustrating changes during construction, and re-drafted Record Drawings showing changes during construction.

D. Record Drawings: Maintain a full-size paper set of “black-line” Construction Drawings throughout the project, and carefully record in red ink any deviations from the design drawings. Scans of Record Drawing markups in PDF format shall be posted to Trimble (e-Builder) each month during the Completion (Construction) Stage. Upon Substantial Completion of the work, deliver the marked-up set of prints to WSSC Water. WSSC Water reserves the right to withhold final payment until Record Drawings are received.

1.13 DELIVERABLES

The selected PDB Team will provide the following deliverables during the Preliminary Stage of the Project.

Part 6 – Scope of Work Page 16 of 16

A. Study and Report Phase deliverables

1. Quality Assurance / Quality Control (QA/QC) Plan

2. Risk Register

3. Safety Plan

4. Basis of Design Report (BODR) to include:

a. Field investigation reports

b. Summary of sewer condition reports and identified deficiencies

c. Alternatives Evaluation and Recommendations

d. Required permit list

e. Preliminary property impacts and Right of Way/Right of Entry requirements

f. Evaluation of alternative rehabilitation methods, materials, and costs

g. Evaluation of flow control options and capacity of the Relief Sewer for flow bypassing

h. Recommendation of the preferred rehabilitation approach, including the siphon.

i. Cost estimate for design and construction of the recommended rehabilitation

B. Preliminary Technical Documents Phase Deliverables

1. Supporting documents for permit applications

2. Easement and right of entry documents

3. 30% design plans, outline specifications, and estimate

4. 70% design plans, specifications, and estimate

5. Proposed scope of work, schedule, risk register, and cost proposal for the Completion Stage work

D. Record Drawings: Maintain a full-size paper set of “black-line” Construction Drawings throughout the project, and carefully record in red ink any deviations from the design drawings. Scans of Record Drawing markups in PDF format shall be posted to...