Attachment 1 - Specifications.pdf

STATEMENT OF WORK

USGS Closed Population Fence Repair

1) Project Background

The USGS Closed Population facility is surrounded by a two-way barrier that prevents emigration or immigration of brown treesnakes (Boiga irregularis). The fence is constructed of 1.5-m height chain-link fence over a concrete footer. The fence is covered by ¼” metal mesh with a bulge on each side to prevent climbing by brown treesnakes. The 5-ha site (225-m x 225-m) is located in Northwest Field North on Andersen Air Force Base on Guam.

Construction of the new firing range associated with the Marine Corps relocation to Guam was planned so as to avoid impacting the USGS Closed Population, representing a significant military investment in maintaining the integrity and functionality of the study site. However, the barrier was constructed in 2004 using steel mesh and although carefully maintained over the past 16 years has been exposed to the corrosive environmental conditions on Guam (salt spray). Therefore, portions of the mesh have rusted beyond reasonable repair and complete replacement of the mesh overcoat is required to maintain the integrity of CP as a study site for brown treesnake control and management. This Statement of Work (SOW) concerns 1) constructing a temporary barrier out of plywood or erosion cloth, 2) disassembling the entrance ramp, 3) removing the old mesh overcoat, 4) coating the underlying chain link with rust control paint, 5) replacing the mesh overcoat, and 6) reassembling the entrance ramp.

2) Project Location

USGS Closed Population Enclosure

Northwest Field North, Andersen Air Force Base

Yigo, Guam, 96913

Latitude: 13ᴼ23’23” Longitude: 144ᴼ51’33”

3) USGS Points of Contact (POC)

USGS Contracting Officer: Robert Valdez

USGS, Denver Acquisition Branch rvaldez@usgs.gov

ALL QUESTIONS RELATED TO THIS SOLICITATION SHALL BE SUBMITTED TO:

Robert Valdez email: rvaldez@usgs.gov

Facility Manager/Project Manger: Melia Nafus

USGS Brown Treesnake Project mnafus@usgs.gov

970-226-9255 Office

970-416-2878 Cell http://binged.it/1MePWw2 mailto:rvaldez@usgs.gov mailto:mnafus@usgs.gov

Site Representative: Charlene Hopkins

Email: cbhopkins@usgs.gov

Cell: (671) 687-9533

Tom Hinkle

Email: Thomas_hinkle@usgs.gov

(671) 687-0547

The location of this contract will be the USGS Closed Population which is an enclosure used for the purposes of brown treesnake research on Guam. The enclosure is to remain operational throughout the life of this contract and optimally preservation of a temporary boundary will be constructed to reduce movement of snakes in and out of the enclosure. In areas where work is required and the USGS must maintain data collection activities, work shall be conducted with minimal disruption to the USGS’s data collection activities, and in close coordination with the onsite USGS representative and/or USGS Facility Manager.

4) Hours of Operation

Normal working hours shall be 7:00am-5:00pm, Monday-Friday. The contractor shall not work Saturdays, Sundays, legal holidays, or non-normal working hours, unless otherwise authorized by the Contracting Officer. Requests to work times other than normal hours shall be made in writing.

5) Description of Work

Mesh Overlay Deficiency Statement

A standard chain-link fence was covered with ¼“ x ¼“ mesh made of galvanized steel, with a circular “bulge” at the top to prevent climbing or other methods of entry or exit by an arboreal snake. Due to the highly corrosive environment on Guam, the outer mesh layer and the ground footing (Fig. 1 and 2) has corroded extensively and requires complete replacement to maintain the integrity of the facility. Complete removal of the footer and replacement of the mesh is required.

Contractor shall:

1. Inspect the installation technique of the metal footer strip and document exact assembly.

2. Inspect the mesh layer and document method and structure of assembly.

3. Remove the metal strip (Fig. 2) on the inside and outside of the barrier via a sectional process (One side of the four sides will be disassembled and repaired before moving to the next section)

4. Remove the ¼” mesh outer layer.

5. Inspect the chain-link fence and advise USGS is repairs are required.

a. Clean rust and corrosion from chainlink via power washing to remove lichen or moss.

b. Paint chainlink fence with a rust inhibitor.

6. Install new mesh (galvanized or stainless-steel material may be used, specifications are provided in Fig. 4 – 6 below) using the same technique used in original construction (wires, clips installed in same orientation as original to prevent climbing mailto:cbhopkins@usgs.gov mailto:Thomas_hinkle@usgs.gov by snakes).

7. Install new metal footer strip (galvanized or stainless steel material may be used).

8. Disassemble the entry/access platform (if required to properly install mesh outer layer)

9. Reassemble the entry/access platform. Specifications can be provided at request of the contractor.

10. For steps 1-9 contractor must verify that all metals used for assembly do not have properties that will interactively increase the rate of corrosion.

11. For steps 1-9 contractor will follow original fence assembly design to ensure that snakes cannot climb the fence.

12. Ensure final product can withstand wind damage from typhoons due to adequate attachment and reinforcement linkages between the chainlink fence and mesh overlayer.

13. Inspect the final product to verify stability, snake containment standards are met, and bulge is sufficiently uniform across the entire enclosure.

6) General Performance and Requirements

The contractor shall:

1. Be aware that all metallic materials used in this project will need to be compatible in corrosive effects; meaning they will not interactively accelerate the rate of corrosion. Those metal materials that are necessary for the completion of the project will need to be checked by the USGS prior to use. This may involve sending metallurgical composition of materials and/or samples of proposed materials to

Facility Manager in Fort Collins Colorado for approval. Failure to meet these criteria will be unacceptable. Any non-compliant or non-approved metals will be removed and replaced by contractor at no cost to the government.

2. Remove any supplies, equipment, or tools at the end of the work day unless prior approval from Department of Defense has been granted to store equipment onsite.

The contractor shall comply with all stipulations required by Department of Defense and ensure joint coordination between DoD personnel, Facility Manager, and onsite

USGS representative.

3. Keep dust and dirt pollution to a minimum and ensure safety of all persons in the work area.

4. Take all necessary precautions to prevent fires or injury to the public or damage to property of others during the performance of this contract.

5. All personnel must be able to acquire access to United States Department of Defense land to access the site.

6. Contractors may require an escort to be present during working hours and may thus need to coordinate with the onsite representative daily.

7) Schedule

The contractor shall (a) commence work under this contract once given the Notice to Proceed

NTP by the Contracting Officer, (b) prosecute the work diligently, and (c) complete the work no later than 180 days from the Notice to Proceed. The time for completion shall include https://en.wikipedia.org/wiki/Non-ferrous_metal final cleanup of premises.

8) Pre-Construction Meeting

After the NTP has been issued, a pre-construction meeting with USGS Facility Manager and/or Contracting Officer to discuss timelines, questions, and concerns regarding the project. The pre-construction meeting shall be held before construction begins and is determined at a time agreed upon by each party involved. Additional meetings will be scheduled as deemed necessary by the contractor or USGS officials.

9) Special Site Considerations

There is no long-term storage on-site for the contractor to utilize due to ongoing construction of a military firing range located in the vicinity of this site. If the contractor requires storage to protect materials from rain, wind, etc., the contractor must provide their own storage location. Materials that will be used in a given week may be stored in place with permission from DoD. However, said storage must be located with the approval of the USGS Facility

Manager and/or USGS Site Representative. Additionally, all personnel assigned to this task may be required to pass a federal background investigation in order to be eligible to access military property. Contractors may require a USGS representative onsite for all days in which personnel will be present.

10) Quality Assurance

1. The contractor shall be responsible for visiting and inspecting the site to verify measurements, ascertain the nature and quality of the work to be performed, inform themselves of the general and local conditions (which can affect the work or the cost thereof), and compare the specifications with the work to be performed. Failure to do so will not relieve the successful contractor of his or her responsibility for estimating properly the difficulty or cost of furnishing materials and successfully performing the work in accordance with the true meaning of the specifications without additional costs to the government.

2. In any case of discrepancy in the specifications, the matter shall be immediately submitted to the Contracting Officer, without whose decision said discrepancy shall not be adjusted by the contractor, save only at his own risk and expense.

3. The USGS shall designate a parking area (or areas) for the contractor to park vehicles, as determined by Andersen Air Force Base specifications and requirements.

Vehicles shall be limited to only those vehicles established for contractor operations and supervisor use. Personal vehicles should not be used. Egress and ingress routes need to remain clear as much as possible to allow for emergencies.

4. The contractor is not to use the Owner's facilities. Bathrooms (Porta Johns) are to be located at the discretion of the onsite USGS Representative and/or Facility Manager.

5. Any changes affecting the scope of work shall originate from or be approved by the

Contracting Officer in writing.

6. All materials and workmanship shall be subject to the inspection and approval of the

USGS Facility Manager or USGS Technical Representative designated by the USGS.

All work unsatisfactorily performed shall be promptly corrected and made acceptable to the Government at no extra cost.

7. The Contractor shall confine all work on the Government premises to areas authorized or approved by the USGS Facility Manager or a USGS Representative.

8. The contractor shall be responsible for making all arrangements for the receipt of materials and supplies at the job site. Government personnel are not permitted to receive or sign for items delivered to the site.

9. The USGS Facility Manager or a USGS Representative, designated by the USGS, shall perform final inspection, and acceptance with the contractor on-site upon completion of job performance.

10. Contractor may submit progress payments no more frequently than monthly. Refer to

Clause GS1126 Invoicing and Performance Statement Instructions (JUL 2001).

Figure 1. Fence of the USGS Closed Population, composed of a chainlink fence with an outer layer of ¼” x ¼” mesh, with a “bulge” on the top, and affixed directly to the concrete footer.

Figure 2. Galvanized steel strapping tape affixing the outer mesh layer to the concrete footer.

Figure 3. Aerial location of the USGS Closed Population facility. Forest area outlined by fence.

Blue arrow points to NW fence corner.

Figure 4. Cross section specifications of the USGS Closed Population fence.

Figure 5. Front description of the USGS Closed Population Fence.

Figure 6. Corner Sections of the USGS Closed Population Fence

SPECIAL INSTRUCTIONS:

The warranty of construction provisions are included providing a minimum of one (1) year construction warranty per the clause or greater to all manufacturer, subcontractor, prime contractor warranties (FAR 52.246-21 Warranty of Construction). This warranty shall cover repair of damage to work resulting from rusting, deterioration, accelerated weathering or snake escape, caused by faulty materials or installation, at no additional cost to USGS.

Product Data: The contractor shall provide manufacturer’s technical product data for each type of material product that will be used. All products are subject to the approval of the Project Manager (PM) and Technical Representative

(COTR) prior to use.

Safety Plan: The contractor shall provide a site safety plan that meets the requirements of OSHA site safety plans.

This plan shall be submitted with the Technical Proposal

Contamination Safety Data: The Contractor shall provide Material Safety Data Sheets (MSDS) for all products used in conjunction with work under this order. All construction materials brought on to the site require approval by the

COR prior to use. COR will be notified 24 hours in advance of any delivery.

Project Schedule: Prior to Notice-to-Proceed, the contractor shall submit to the PM and COTR a written schedule of construction for the project for their approval. The schedule shall indicate the dates the contractor and/or subcontractors will be on site. The schedule shall indicate the start date and completion date, and the dates that major milestones will be accomplished. When preparing the schedule, the contractor shall consider lead times for material procurement, and shall consider the permitted hours of work indicated in Time of Work Performance clause above. The contractor shall notify the COTR immediately if any anticipated on-site date is expected to change from the original schedule.

Storage: Storing, positioning, and use of equipment, tools, materials, scraps, and trash in a manner likely to present a hazard to the public or building occupants by its accidental shifting, ignition, or other hazardous qualities is prohibited. Store materials in a location protected from weather, clear of ground and moisture. When stored outdoors, cover materials with tarpaulins. If materials have to be replaced due to damage, the materials shall be new materials

Handling: Protect materials from damage during delivery, storage and handling per manufacturers written recommendations.

Any changes affecting the scope of work shall originate from or are to be approved by the Contracting Officer and project manager in writing. In case of discrepancy in the specifications, the contractor shall immediately notify the

Project Manager, the COTR and/or the Contracting Officer for resolution. The contractor will assume all risk at his or her own expense if a discrepancy in the specifications is not resolved and the work is changed without approval of the USGS project manager, the COTR and the Contracting Officer.

The contractor shall be responsible for complying with all Federal, State and local laws, codes and regulations in connection with the execution of the work.

ACCIDENT PREVENTION AND FIRE HAZARDS

The contractor shall take all necessary precautions to prevent fires, and injury to the public and building occupant(s), or damage to property of others during the performance of this contract. For the purpose of this contract, the public or building occupant shall include all persons not employed by the contractor or a subcontractor working under his/her direction. Contractor shall protect existing structures and finishes, both interior and exterior, from damage during construction. Contractor shall be responsible for the repair or replacement of damaged building material or components resulting from the demolition or installation of items under this contract. Materials and methods shall match existing.