EBHD_Sewage_Lift_Station_SOO_Distributable_1.pdf

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Statement of Objectives (SOO)

Elephant Butte Historic District – Sewage Lift Station Replacement

1. Background The existing sewage lift station serving the project area is approaching the end of its service life and requires replacement to maintain reliable wastewater conveyance operations.

The existing lift station generally consists of:

Steel wet-well tank structure;

Reinforced concrete foundation pad and top slab;

Access hatch system;

Duplex pumping arrangement;

Associated piping, valves, controls, and appurtenances;

Existing 480-volt, 3-phase electrical service.

The project site is located within a federally managed historic district containing known and potentially significant cultural resources (see Figure 1). Previous excavation and construction activities within the project area identified archeological artifacts and cultural materials during ground-disturbing operations.

The Government intends to procure this project as a Design-Build contract for the complete replacement of the existing sewage lift station system.

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Figure 1. Elephant Butte Historic District vicinity map showing lift station and wastewater treatment plant locations.

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2. Design-Build Procurement This project shall be executed as a Design-Build procurement. The Contractor shall be responsible for the complete design, engineering, furnishing, installation, testing, startup, commissioning, and turnover of a fully operational sewage lift station replacement system meeting the requirements of this Statement of Objectives (SOO).

The Government is providing performance requirements, existing site information, and operational objectives only. The Contractor shall be responsible for the adequacy, completeness, constructability, coordination, and professional sufficiency of the final design.

Government review of Contractor submittals shall not relieve the Contractor of responsibility for design adequacy, errors, omissions, means and methods, or compliance with applicable codes and standards.

3. Objective The objective of this project is to provide a complete operational sewage lift station replacement system capable of safely and reliably handling existing wastewater system demands while minimizing service interruptions during construction.

The completed system shall:

Replace the existing lift station infrastructure;

Integrate with existing site utilities and infrastructure;

Provide reliable long-term wastewater conveyance operations;

Meet applicable safety, electrical, structural, environmental, and wastewater industry standards;

Be maintainable, serviceable, and safe for operations personnel.

4. Scope of Work The Contractor shall provide all labor, supervision, professional engineering services, materials, equipment, temporary facilities, transportation, testing, startup, commissioning, documentation, and incidentals necessary to provide a complete operational lift station replacement system.

The work generally includes:

Design and engineering services;

Field verification of existing conditions;

Temporary bypass pumping and maintenance of wastewater service;

Removal and disposal of the existing lift station system;

Excavation, trench safety, dewatering, and earthwork;

Design and installation of a replacement lift station system;

Structural foundation and reinforced concrete slab work;

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Duplex pumping system;

Electrical and controls replacement;

Utility connections and tie-ins;

Site restoration;

Startup, testing, training, and commissioning;

Cultural resource protection and coordination.

5. Contractor Design Responsibilities The Contractor shall be responsible for all engineering and design services necessary to provide a complete operational lift station replacement system.

The Contractor shall:

Perform all required engineering and design;

Verify all field conditions, dimensions, elevations, and utility locations;

Prepare all design calculations and construction documents necessary for execution of the work;

Coordinate structural, mechanical, electrical, controls, and civil design disciplines;

Ensure compatibility with existing infrastructure and operational requirements;

Prepare design drawings, fabrication drawings, shop drawings, and technical submittals;

Ensure the completed design complies with applicable codes, standards, and regulatory requirements;

Provide stamped engineering documents where required by applicable law or regulation.

Existing information provided by the Government is for informational purposes only and shall be independently verified by the Contractor.

6. Basis of Design Requirements The Contractor shall design and construct a replacement lift station system meeting the following minimum performance requirements:

6.1 Operational Requirements

The completed lift station system shall:

Safely and reliably convey existing wastewater flows;

Operate as a fully automated duplex pumping station;

Include one duty pump and one standby pump;

Include automatic pump alternation functionality;

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Include high-level alarm functionality;

Provide safe operator access for inspection and maintenance;

Be designed for long-term maintainability and corrosion resistance.

6.2 Structural Requirements

The replacement system shall include:

Structurally adequate wet-well system;

Reinforced concrete foundation system;

Reinforced concrete top slab/access slab;

Access hatch system suitable for maintenance and operational access;

Structural components capable of withstanding anticipated operational and environmental loading conditions.

6.3 Electrical and Controls Requirements

The Contractor shall provide:

• New lift station control panel;

• Pump controls and alternation controls;

• Alarm and monitoring functionality;

• New conduit, wiring, and electrical appurtenances;

• Integration with the existing 480-volt, 3-phase electrical service.

6.4 Utility Connections

The Contractor shall connect the completed lift station system to:

• Existing sanitary sewer infrastructure;

• Existing force main infrastructure;

• Existing electrical service;

• Any additional utilities required for complete operational functionality.

6.5 Temporary Bypass Pumping

The Contractor shall maintain continuous wastewater conveyance service throughout construction using temporary bypass pumping or other approved methods.

The Contractor shall be responsible for:

• Bypass system design;

• Temporary pumping operations;

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• Monitoring and maintenance;

• Spill prevention and response;

• Sequencing and tie-in coordination.

7. Contractor Construction Responsibilities The Contractor shall be responsible for:

• Means and methods of construction;

• Site safety and OSHA compliance;

• Excavation, trench safety, and shoring;

• Dewatering operations as necessary;

• Protection of existing utilities and infrastructure;

• Temporary traffic control and site access;

• Procurement and coordination of all subcontractors;

• Construction sequencing;

• Quality control and inspection;

• Startup, testing, and commissioning.

8. Design Submittals and Deliverables The Contractor shall provide, at a minimum:

8.1 Design Submittals

Conceptual design package;

Design calculations;

Structural calculations and details;

Electrical one-line diagrams and control schematics;

Pump selection and performance information;

Temporary bypass pumping plan;

Sequence of construction;

Shop drawings and fabrication drawings.

8.2 Construction Deliverables

Product data and equipment submittals;

Testing and commissioning documentation;

Startup reports;

Operations and maintenance manuals;

Training documentation;

Record drawings (as-builts);

Warranty documentation.

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9. Cultural Resource Protection Requirements The project site is located within a federally managed historic district containing known and potentially significant cultural resources.

The Contractor shall conduct all work in a manner that protects cultural and historic resources and complies with all applicable federal cultural resource protection laws, regulations, permit conditions, and agency requirements.

The Contractor shall:

Coordinate all ground-disturbing activities with Government-designated cultural resource personnel;

Provide qualified archeological monitoring personnel during excavation and other ground-disturbing activities as required by the Government;

Provide support and access for archeological monitoring activities as required;

Immediately cease work in the vicinity of discovered cultural materials, artifacts, features, or suspected human remains;

Protect discovered resources from disturbance until direction is provided by the Government;

Minimize unnecessary disturbance outside approved work limits.

The Contractor shall include anticipated costs for archeological monitoring, coordination, sequencing impacts, and cultural resource protection measures within the project schedule and construction planning.

10. Applicable Standards and Regulations All work shall comply with applicable:

Federal, state, and local regulations;

OSHA safety requirements;

National Electrical Code (NEC);

Wastewater industry standards;

Manufacturer installation requirements;

Environmental compliance requirements;

National Historic Preservation Act (NHPA);

Archeological Resources Protection Act (ARPA);

Applicable Section 106 consultation requirements and agency cultural resource stipulations.

11. Government Review

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Government review of Contractor design packages, calculations, shop drawings, submittals, schedules, and construction activities is intended only to evaluate general conformance with the SOO requirements.

Government review shall not relieve the Contractor of responsibility for:

Design adequacy;

Constructability;

Coordination;

Means and methods;

Errors and omissions;

Code compliance;

Safety;

Professional engineering responsibility.

12. Period of Performance The Contractor shall complete all work within the period of performance identified in the solicitation documents.

The Contractor shall provide a project schedule identifying:

Design milestones;

Procurement activities;

Long-lead equipment procurement;

Construction sequencing;

Bypass pumping duration;

Startup and commissioning activities.

13. Testing, Startup, and Training The Contractor shall perform all testing necessary to demonstrate complete operational functionality of the system.

Testing shall include:

Pump testing;

Electrical testing;

Alarm testing;

Control system testing;

Startup and commissioning;

Operational demonstration.

The Contractor shall provide operational training to Government personnel and/or concessionaires prior to final acceptance.

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14. Site Restoration The Contractor shall restore all disturbed areas resulting from construction activities, including:

Concrete surfaces;

Asphalt paving;

Base course;

Grading;

Surface restoration;

Disturbed utility or infrastructure areas.

15. Estimate and Procurement Assumptions The Government anticipates this project will be executed under a Design-Build delivery method utilizing contractor-developed solutions and shop-level construction documents.

The Contractor shall be responsible for all coordination to provide a complete operational system meeting the requirements of this SOO.