A04_SOW.pdf

Scope of Work (SOW) Project Title: Super-Silent 56kW Generator Rental including Installation and Utility Connection

Location: Mount Rushmore National Memorial, Keystone, South Dakota

PART 1 – GENERAL

ITEM 1 – DESCRIPTION OF WORK

1.1 Background

The National Park Service (NPS) requires the temporary provision, delivery, installation, grounding, operation support, and removal of one (1) super-silent or whisper-rated 56kW generator system to provide temporary electrical power to two (2) existing ground-level mobile trailers located at Mount Rushmore National Memorial in Keystone, South Dakota.

The generator system shall provide safe, continuous temporary electrical service during a scheduled operational event period. Due to the public-facing nature of the site and proximity to visitors, all generator equipment shall be low-noise (“super-silent” or “whisper-rated”) and configured to minimize sound transmission, exhaust exposure, fuel hazards, and environmental impacts within the National Park setting.

The Contractor shall furnish all labor, transportation, supervision, fuel, grounding systems, spill containment, electrical distribution equipment, temporary cabling, connectors, startup/testing, monitoring, maintenance, removal, and restoration necessary to provide a complete temporary power system compliant with OSHA 29 CFR 1926, NFPA 70 (National Electrical Code), NFPA 70E, NFPA 110, EPA spill prevention requirements, and all National Park Service operational and environmental protection requirements.

1.2 Work Covered by the Contract Documents

Project Location

Mount Rushmore National Memorial – Keystone, South Dakota.

Exact trailer and generator placement locations shall be coordinated with the appointed Project Inspector prior to mobilization.

Work Includes

The work under this contract consists of furnishing, delivering, installing, connecting, and removing one (1) temporary 56kW generator system serving two (2) ground-level mobile trailers, including but not limited to the following:

• Furnish one (1) minimum 56kW diesel-powered generator.

• Generator shall be “super-silent,” “whisper-rated,” or equivalent sound-attenuated configuration specifically designed for noise-sensitive environments.

• Provide all transportation, delivery, setup, and installation services.

• Provide all temporary electrical distribution equipment, feeder conductors, disconnects, grounding systems, and weatherproof electrical connections.

• Verify electrical compatibility and load requirements for both trailers prior to energization.

• Install NEC-compliant grounding system in accordance with project grounding requirements.

• Provide spill containment berm or integrated containment system.

• Provide all fuel required for operation during the period of performance unless otherwise directed.

• Provide startup testing, operational verification, and shutdown procedures.

• Maintain generator during operational period.

• Remove generator and all temporary systems upon completion.

• Restore disturbed areas to original condition.

Generator Technical Requirements

Generator shall meet the following minimum requirements:

• Minimum 56kW rated output.

• Diesel-powered.

• “Super-silent,” “whisper-rated,” or equivalent low-noise sound attenuated enclosure.

• Easy-start capability.

• UL-listed and compliant with NFPA 110.

• Complete manufacturer make/model specifications shall be submitted to the appointed Project Inspector prior to mobilization.

• Generator shall include weatherproof acoustic enclosure.

• Generator exhaust shall face away from trailers, tents, buildings, air intakes, and openings.

• Exhaust discharge shall maintain minimum 5-foot clearance from openings and air intakes.

• Generator shall be enclosed within:

o Integrated spill containment system, OR o External spill prevention berm.

• Generator placement shall maintain minimum 10-foot clearance from:

o Trees o Tall vegetation o Tents o Temporary membrane structures o Flammable or combustible materials.

• Generator shall include external emergency shutoff.

• Generator shall comply with EPA diesel emissions requirements.

Grounding Requirements

Contractor shall provide complete grounding system meeting NEC Article 250 and project requirements including:

• Grounding rod installed minimum 18 inches into soil substrate.

• Grounding rod dimensions:

o Minimum 1-inch diameter o Minimum 24 inches in length

• Grounding conductor:

o Minimum #10 AWG copper wire

• Grounding conductor bonded between equipment grounding lug and grounding rod.

• Ground rod shall be installed vertically only.

• Ground rod shall include safety rebar cap.

• Ground rod shall be minimum 2 feet from outer edge and outside tree dripline.

• Grounding installation shall avoid underground utilities and root disturbance.

Delivery and Removal Dates

• Generator delivery, installation, and hookup shall occur during the afternoon of

June 24, 2026.

• Generator removal and complete demobilization shall occur no later than close of business on July 7, 2026.

Period of Performance

• June 24, 2026 through July 7, 2026.

• Inclusive of:

o Delivery o Installation o Operational support o Maintenance o Demobilization o Site restoration o Any other costs

ITEM 2 – EXISTING UTILITIES

2.1 Existing Utilities

Contractor shall coordinate with utility locating services and the appointed Project Inspector prior to installation of grounding rods or any ground penetration activities.

2.2 Utility Protection

Contractor shall protect all known and unknown underground utilities. Any utility damage caused by Contractor operations shall be repaired at no cost to the Government.

ITEM 3 – CONTRACTOR’S USE OF PREMISES

3.1 Conduct of Operations

All operations shall comply with National Park Service regulations and park operational requirements.

Contractor shall:

• Maintain safe public circulation.

• Protect visitors and staff from noise, exhaust, and trip hazards.

• Minimize environmental impacts.

• Maintain clean work areas at all times.

3.2 Environmental Protection

Contractor shall:

• Prevent fuel spills and soil contamination.

• Maintain spill response kits on site.

• Immediately report spills to the appointed Project Inspector.

• Prevent disturbance to vegetation and park resources.

3.3 Noise Management

Due to the high visitor traffic and interpretive environment at Mount Rushmore National Memorial, generator equipment shall be low-noise (“super-silent” or “whisper-rated”) and suitable for operation in noise-sensitive public environments.

Generator sound levels shall not exceed manufacturer-rated low-noise operational levels and shall comply with park noise restrictions.

3.6 Housekeeping

Contractor shall maintain orderly staging and remove waste materials daily.

ITEM 4 – COMMENCEMENT, PROSECUTION, AND COMPLETION

Contractor shall:

• Deliver and install generator on June 24, 2026.

• Complete hookup and startup same day.

• Remove generator and restore site on July 7, 2026 by close of business.

ITEM 5 – ABBREVIATIONS AND STANDARDS

Applicable standards include:

• OSHA 29 CFR 1926

• NFPA 70 (NEC)

• NFPA 70E

• NFPA 110

• EPA SPCC Requirements

• UL 2200

• ANSI/NETA ATS

• ASTM grounding standards

ITEM 6 – ACCIDENT PREVENTION

Contractor shall submit Site-Specific Accident Prevention Plan (APP) including:

• Generator safety procedures

• Fuel handling plan

• Spill response procedures

• Fire prevention procedures

• Electrical safety and lockout/tagout procedures

• Emergency contact procedures

Weekly toolbox safety meetings are required.

All PPE shall comply with OSHA and ANSI requirements.

ITEM 7 – SUBMITTALS

Submit minimum 15 days prior to mobilization:

• Generator manufacturer data and specifications

• Noise rating documentation

• Product data sheets

• Electrical hookup diagrams

• Grounding details

• Spill containment details

• Fuel handling procedures

• APP

• Schedule

• Fire extinguisher documentation

• SDS documentation

ITEM 8 – TEMPORARY SERVICES

Contractor shall provide:

• Temporary barriers

• Cable protection ramps

• Fueling services

• Spill kits

• Fire extinguishers

• Temporary lighting if required

ITEM 9 – PROJECT CLOSEOUT

Contractor shall:

• Remove all temporary systems.

• Remove grounding rods and restore soil.

• Remove spill containment systems.

• Restore disturbed surfaces.

• Remove all debris and materials.

• Submit closeout documentation and photographs.

Final acceptance shall occur only after appointed Project Inspector verification of complete restoration.

PART 2 – PRODUCTS

2.1 Generator

• Minimum 56kW diesel-powered generator

• Super-silent or whisper-rated acoustic enclosure

• UL-listed

• Weatherproof enclosure

• Integrated fuel tank

• External emergency stop

• Voltage regulated

• Easy-start capability

2.2 Grounding Materials

• 1-inch diameter copper-clad grounding rod

• Minimum 24-inch length

• #10 AWG copper grounding conductor

• UL-listed grounding clamps

2.3 Spill Containment

• EPA-compliant containment berm

• Fuel-resistant liner

• Capacity exceeding total fuel tank volume

PART 3 – EXECUTION

Phase 1 – Mobilization & Delivery

• Coordinate delivery timing with the appointed Project Inspector.

• Deliver generator afternoon of June 24, 2026.

• Verify approved placement area and setbacks.

• Protect pavement and pedestrian areas during mobilization.

Phase 2 – Grounding Installation

• Install grounding rod vertically minimum 18 inches into soil.

• Install outside tree dripline.

• Bond #10 AWG copper conductor between generator lug and rod.

• Install safety rebar cap.

Phase 3 – Generator Placement & Containment

• Position generator on stable level surface.

• Install spill containment system.

• Verify minimum 10-foot clearance from combustibles and vegetation.

• Orient exhaust away from trailers and air intakes.

Phase 4 – Electrical Hookup

• Install temporary feeder conductors.

• Provide weatherproof connections and disconnects.

• Verify voltage compatibility and load balancing.

• Protect cables using ADA-compliant cable ramps where pedestrian crossings occur.

Phase 5 – Testing & Startup

• Verify grounding continuity.

• Perform startup testing.

• Verify voltage and frequency stability.

• Verify operation of both trailer connections under load.

• Correct deficiencies prior to operational turnover.

Phase 6 – Removal & Restoration

• Disconnect electrical systems safely.

• Remove generator before close of business July 7, 2026.

• Remove grounding system and containment systems.

• Restore disturbed surfaces.

• Submit closeout photographs and documentation.