B08_-_Attachment_1_-_SOW_-_DINO_Inspection_and_Cleaning_of_Water_Reservoir_-_Updated_July_2026.docx

Dinosaur National Monument

STATEMENT OF WORK:

Inspection, Cleaning, and Minor Repair of Potable Water Reservoirs Utilizing Divers Dinosaur National Monument

PMIS # 322519

DATED: April 2026 Revised: July 2026

NATIONAL PARK SERVICE

Inspection, Cleaning, and Minor Repair of Potable Water Reservoirs Dinosaur National Monument SOW DINO

1. Background National Park Service manages potable water systems at Dinosaur National Monument to support visitor use, employee housing, and operational facilities. The monument maintains multiple concrete water storage reservoirs constructed circa 1960.

Due to age-related deterioration, including cracking, spalling concrete, and corrosion of embedded metal components, these reservoirs require routine inspection, cleaning, and minor repairs to ensure continued compliance with potable water standards and safe operation.

These reservoirs are classified as critical infrastructure systems.

1.1 DESCRIPTION

A. Park water storage tanks need to be cleaned and inspected to remove the normal buildup of sediment and identify any equipment deterioration that may require repairs in the future. Routine cleaning will ensure the potable water system remains within regulated standards.

B. The scope of work for this contract consists of cleaning seven (7) tanks at seven (7) areas within the park (see Table 1 at the end of this section). Repair work identified during the inspection process that can be accomplished by the diving contractor as part of this contract will be presented to the Movement in a change order quote. The Government has the right to accept or reject the proposal.

C. The Contractor shall provide all materials and labor required to perform the work specified.

1.2 LOCATION

A. Al job sites are located within DINOSAUR NATIONAL MONUMENT (DINO NM) (see Figure 1 at the end of this section). The project sites for tank cleaning are:

· Quarry Visitor Center, Uintah County, UT;

· Split Mountain Campground, Uintah County, UT;

· Green River Campground, Uintah County, UT; Echo Park Campground, Moffat County, CO

· Delridge Campground, Moffat County, CO Headquarters, Moffat County, CO;

· Gates of Lodore, Moffat County, CO.

1.3 PERFORMANCE PERIOD: Work shall commence on or about September 2026. The total performance period is approximately 90 calendar days.

1.4 FIELD VERIFICATION

A. The Contractor shall field verify all existing dimensions affecting the work in this contract before ordering any equipment/materials.

1.5 MATERIALS AND EQUIPMENT

A. All materials and equipment shall be Contractor-furnished from outside the park.

DINOSAUR NATIONAL MONUMENT

WATER STORAGE FACILITY DATA

(Feet unless noted by inches Height (Feet) Nominal Capacity (Gallons) Overflow Level (Gallons) Operating Level (Gallons) Tank Bottom Area

39.83 x 20.0

797 sq Ft

39.83 x 40.5

(114628)

9.0 Feet

(108595) 1,613 sq Ft 1,613 sq Ft

(56,606) 9 Feet (53,627) 797 sq Ft

Deer lodge CG, 2 Cell

TABLE 1

Notes:

1. All water tanks are rectangular below grade cast-in-place concrete constructed in the 1960's.

2. The water source at all locations is good.

3. All reservoirs have a minimum 24-inch square access hatch and an inside ladder.

4. Reservoirs at Green River, and Gates of Lodore are accessible at a minimum by a 4x4 pickup truck with trailer. Echo Park accessible by high clearance 4X4. The Quarry, Split Mountain, and Headquarters reservoirs are only accessible by portable equipment.

2. Objective The objective of this contract is to provide all labor, materials, equipment, and supervision necessary to:

· Perform routine inspection and condition assessment of potable water reservoirs

· Clean and sanitize interior surfaces

· Conduct minor repairs to maintain structural integrity and sanitary conditions

· Ensure compliance with applicable standards, including NPS-83 and U.S. Public Health Service drinking water requirements

3. Scope of Work

1.1 GENERAL

A. Underwater Operations:

1. All Dive Maintenance Technicians and associated in-tank equipment shall be fully disinfected in accordance with AWWA Standard C652-02. All System entries shall be conducted in accordance with applicable OSHA regulations pertaining to Diving in Confined Space; including 1910.401 through 1910.441. Specialty equipment may include but is not limited to; appropriate OSHA climbing and personal fall protection, AWWA and ADC approved commercial diving equipment dedicated to in-service potable water operations.

2. Dive team shall consist of a minimum of three people. If two divers are submerged at the same time a minimum of a five-person diving team is required. All dive team members must have ANSI/ACDE 01-1993 minimum commercial diver training. This requires a certificate of graduation from an ACDE certified commercial diving school or equivalent military or other training (minimum 600 hr.).

3. Dive team must have OSHA approved Standards, Procedures, and Safe Practices Manual present and available for review at each dive location.

1.2 CLEANING PROCEDURES

Cleaning procedures shall combine vigorous brushing of surfaces cleaned, in addition to removing material from the reservoir by vacuum or water suction. Use of a stationery or fixed brush inside or outside the vacuum head for this purpose is not allowed. The potable water reservoir will be in service during cleaning. The cleaning procedures should not create any visible turbidity in the water column. In addition to cleaning all sediment or other material from the floor of the reservoir, the divers shall ensure that all sediment is removed from the floor to wall seams, support column bases, plumbing fixtures and supports, man entries, or any other areas where the vacuum does not reach during normal floor cleaning.

B. Diving contractor should clean the vertical wall surfaces with similar equipment and procedures as used in cleaning the floor. Cleaning procedures shall combine vigorous brushing of surfaces cleaned, in addition to removing material from reservoir by vacuum or water suction and must be done in such a manner that does not create turbidity inside the reservoir.

C. Maximum discharge rate during the cleaning operations shall be 200 gallons per minute. The Contractor shall make every effort to minimize the quantity of water discharged. All water discharged during cleaning operations shall be de-chlorinated using sodium-metabisulfite or approved equal. Water may be discharged to the ground to a location within 200 feet of the tank as approved by the Contracting Officer.

INSPECTION

Because the tanks are concrete, a NACE inspector is not required.

The inspection shall be accomplished as a continuous process by the driver and include a detailed final inspection. Contractor shall submit a comprehensive inspection checklist detailing all areas of inspection. The Movement will approve the inspection list or amend the inspection list if necessary.

A. Diver should have a helmet-mounted video camera with adequate lighting capable of supplying live video feed to the surface. The live video will be set up so that surface personnel can view underwater procedures as they are performed and so that procedures can be recorded on video tape along with live voice narration. This also provides the Movement with a method of monitoring quality control, to ensure job is done completely and that the diver does not create turbidity. The video camera must have infinite focal range. Cameras with a limited short focal range are not acceptable. Handheld cameras and handheld video cameras, if used, will be used for still or detail images only.

1.3 INSPECTION REPORT

A. Inspection report shall include a high-resolution color video DVD with real time imprint and a time log indicating where each feature or problem area may be found. The DVD shall be narrated live by the divers and/or other personnel (in the control trailer). Provide one hard copy of the computer-generated report with still color images of the fixtures and problem areas, along with a schematic diagram of each tank, and an updated Table 1 with field verified dimensions. The contractor shall also provide the complete report in a single Adobe PDF file, and a copy of all editable individual files in the original format/soft, are that was used to make the report on CD medium.

1.5 REPAIRS

A. Although repair work is not a part of the scope of work for this project, repairs can be made by the diving contractor at the discretion of the Government as an option to this contract. Based on inspection recommendations, the Contractor shall submit a proposal/quote for consideration. Repair work requirements are outlined in Section 13210.

SECTION 13210 REPAIRING POTABLE WATER STORAGE TANKS UTILIZING DIVERS

1.1 GENERAL

A. Underwater Operations: All Dive Maintenance Technicians and associated in-tank equipment and repair materials shall be fully disinfected in accordance with AWWA Standard C652-02. The recommended repairs, materials, and work methods shall meet industry and government standards for potable water systems. This includes the USDA, AWWA, and NSF.

1.2 REPAIR PROCEDURES

A Repair procedure shall combine vigorous brushing of surfaces cleaned, in addition to removing material from reservoir by vacuum or water suction. The potable water reservoir will be in service during repairs, the repair procedures shall not create any visible turbidity in the water column. Repair of cracks and corrosion shall be made with epoxy or polyurethane material in accordance with manufacturer recommendations.

1.4 SUBMITTAL AND APPROVAL PROCEEDURES

A. The Contractor shall submit manufacturers data sheets on all materials that will be used for repairs.

B. All submittals shall be transmitted to the Contracting Officer via email with cover letter. C. All submittals shall be carefully reviewed by the Contractor prior to submission to the government to eliminate errors.

D. The Contractor shall forward submittals to the Contracting Officer prior to the Post Award Meeting.

E. Dinosaur personnel will review and approve, or provide comments to submittals in as short a timeframe as possible but not to exceed 7 business day

3.1 Reservoir Locations

Work shall be performed at the following locations within Dinosaur National Monument:

· Green River Campground, Uintah County, UT

· Split Mountain Campground, Uintah County, UT

· Echo Park Campground, Moffat County, CO

· Deerlodge Campground, Moffat County, CO

· Quarry Visitor Center, Uintah County, UT

· Lodore Campground, Moffat County, CO

· Headquarters Area, Moffat County, CO

3.2 General Requirements

A. Underwater Operations

· Provide all necessary labor, supervision, tools, materials, and equipment

· Coordinate work schedules with the Contracting Officer’s Representative (COR)

· Comply with all applicable federal, state, and local regulations

· Ensure all personnel are trained and certified for confined space entry and potable water system work

3.3 Inspection and Condition Assessment

The Contractor shall perform a comprehensive inspection of each reservoir, including:

· Interior concrete surfaces (walls, floors, ceilings)

· Structural integrity (cracks, spalling, settlement impacts)

· Metal components (ladders, stair treads, rebar corrosion)

· Evidence of contamination, sediment accumulation, or biological growth Deliverables:

· Written condition assessment report for each reservoir

· Photographic documentation of deficiencies

· Recommendations for repair or further evaluation

3.4 Cleaning and Disinfection

The Contractor shall:

· Coordinate with park staff to maintain water system continuity

· Remove sediment, debris, and biological growth in seasonal water systems.

· Clean interior surfaces using methods approved for potable water systems (e.g., pressure washing, approved chemical cleaning agents)

· Dispose of waste materials in accordance with environmental regulations

· Disinfect reservoirs in accordance with Centers for Disease Control and Prevention and state drinking water guidelines

· Refill and return reservoirs to service

3.5 Minor Repairs

The Contractor shall perform minor repairs, including:

· Patching small cracks and spalled areas using potable water-safe materials

· Stabilizing or treating corroded metal components

· Minor surface sealing where appropriate Note:

Major structural repairs are excluded and shall be documented and reported to the Contracting Officer for separate action.

3.6 Safety Requirements

The Contractor shall:

· Comply with Occupational Safety and Health Administration standards, including confined space entry (29 CFR 1910.146)

· Develop and submit a site-specific Health and Safety Plan (HASP)

· Implement lockout/tagout procedures where applicable

· Ensure use of appropriate personal protective equipment (PPE)

3.7 Environmental Protection

The Contractor shall:

· Prevent contamination of potable water systems during all operations

· Comply with Environmental Protection Agency regulations

· Protect surrounding natural and cultural resources within the monument

· Properly manage and dispose of wastewater and cleaning residues

4. Deliverables The Contractor shall provide:

1. Work Plan and Schedule (within 10 days of award)

2. Health and Safety Plan (HASP)

3. Inspection Reports (per reservoir)

4. Cleaning and Disinfection Logs

5. Minor Repair Documentation

6. Final Summary Report, including:

· Completed work description

· Before/after photos

· Identified deficiencies and recommendations

5. Period of Performance The period of performance shall be 90 days from notice to proceed with work scheduled to minimize disruption to visitor services and water system operations.

6. Quality Assurance The Government will:

· Assign a Contracting Officer’s Representative (COR) to oversee performance

· Inspect completed work for compliance with contract requirements

· Require corrective action for deficiencies at no additional cost

7. Applicable Standards and References Work shall comply with, but is not limited to:

· Federal Acquisition Regulation

· NPS-83

· U.S. Public Health Service Drinking Water Standards

· OSHA Confined Space Standards

· EPA Drinking Water Regulations

8. Acceptance Criteria Work will be considered acceptable when:

· Reservoirs are cleaned, disinfected, and returned to service

· Inspection reports are complete and accurate

· Minor repairs are properly executed

· No contamination or system disruption occurs

· All deliverables are submitted and approved by the Contracting Officer

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