B08 Attachment 1_SOW CERC Pond 2 Leak Repair.doc

United States Department of the Interior

U. S. GEOLOGICAL SURVEY

Columbia Environmental Research Center (CERC) 4200 New Haven Road

Columbia, Missouri 65201

Statement of Work CERC Pond Leak Repair

1. General Information

a. Background: The Columbia Environmental Research Center (CERC) conducts research needed to address national and international environmental contaminant issues and effects of habitat alterations on aquatic and terrestrial ecosystems. The CERC conducts multidisciplinary research with emphasis on projects that address complex environmental issues on large geographic scales. Scientists at CERC form scientific information needed for management of the Nation’s resources. Research areas and services cover broad aspects of environmental toxicology and chemistry, biochemistry, ecology, large river ecology and technology transfer. The Center provides expertise in laboratory and ecological toxicology, analytical chemistry and field biology. Research is supported by a wide variety of standard and specialized instrumentation. The CERC science program is organized into the following branches, Toxicology, Environmental Chemistry, Biochemistry/Physiology, Ecology, River Studies, Field Station Research and Information Technology

b. Applicable Documents:

i. Attachment 1_Diagram #1

ii. Attachment 2_Diagram #2

iii. Attachment 3_Civil Drawings

c. Scope

i. Columbia Environmental Research Center (CERC) has a requirement for pond #2 excavation to be performed at the facility located at 4200 New Haven road in Columbia, Missouri. The contractor shall provide all labor, material, tools, equipment, and supervision necessary to address and stop any leakage from the pond. Water has been noticed on the northwest bank top and is believed to be leaking in this area.

2. Work Requirements

a. Technical Requirements: Contractor shall provide all labor, material, tools, equipment, and supervision necessary for the following work and conforming to the following minimum requirements:

i. Excavation:

1. Digging shall be between 10ft south of the concrete kettle to include the kettle to 20ft west of 90º radius of the northwest corner. This is the area believed to be where the leak exists.

2. Contractor shall excavate to appropriate depth to find and stop the leak, to be able to recompact and seal the pond bank. The pond shall not leak after the excavation.

a. Hand excavate areas under pipe where cuts/breaks are identified for repair.

b. Excavation operations shall be carefully executed so that pipe damage does not occur prior to removal.

c. Fill in around kettle and add pillar support to prevent the settling of the concrete platform.

d. Any pipe damage shall be removed/replaced with like kind material.

3. When excavating is completed, the pond should not leak water and hold water at maximum fill level. All known pipes and wires identified on the enclosed drawings shall not be damaged by the contractor. Reference applicable documents: Diagram #1, Diagram #2 and Civil Drawings.

ii. Pond Dredging and Bank Renovations:

1. Any damage to existing dikes and roads used for hauling shall be repaired by the contractor.

2. The contractor shall seed all dikes and other areas disturbed by construction with Kentucky 31 grass seed. Seed shall be tilled into the ground ¼-1 inch in depth. A standard layer of straw shall be placed on top of all seeded area. Initial watering shall take place for 2 hours to soak the seed.

3. The contractor shall maintain all equipment in good working order and ensure there are no significant leaks of oil, gas, lubricants, or other contaminates into pond sediment, backfill or topsoil.

iii. Pond Bank Stabilization:

1. Pond bank stabilization shall be achieved by the installation of limestone rip-rap. Water level design in ponds is 18” (45 centimeter) below dike grade. 4” (10 centimeter) rock shall be layered and compacted into pond banks 30” (76 centimeter) below the dike grade up to grade.

2. Rip-rap base shall be covered completely with a 2-inch layer of 1” (2.5 centimeter) up to 1½” (3.8 centimeter) clean rock gravel 30 inches down from dike grade.

iv. Any issues affecting project completion or delivery dates will be communicated to CERC facility staff as soon as practical but no later than 24 hours after the contractor becomes aware of the issue.

v. The contractor shall follow OSHA safety procedures.

vi. The contractor shall provide employees with standard personal protective equipment in the performance of the work under this order.

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

viii. Contractor personnel shall wear masks over nose and mouth while on site.

b. Deliverables

i. The contractor shall provide all labor, material, tools, equipment, and supervision necessary to address and stop any leakage from the pond.

3. Supporting Information

a. Place of Performance: CERC, 4200 New Haven Road, Columbia, Missouri 65201

b. Period of Performance: 30 days after the date the contractor receives the notice to proceed.

c. Government Furnished Property (GFP): None

d. Special Considerations:

i. The contractor shall perform work only during normal facility business hours of 7:00 AM to 4:30 PM, Monday thru Friday.

ii. Work shall not be performed on federal holidays or on any day the President of the United States, the Congress of the United States or the Center Director directs closure of the facility.

iii. Any changes affecting the scope of work shall be originated from and approved by the contracting officer.

iv. Contractor is responsible for visiting the worksite to verify measurements and to ascertain the nature and location of the work to be performed, and the general and local conditions which can affect the work or the cost thereof. Failure to do so will not relieve the contractor of his responsibility for estimating properly the difficulty or cost of successfully performing the work.

v. All materials and workmanship shall be subject to the inspection and approval of the Contracting Officer or the Contracting Officer’s Technical Representative. All work unsatisfactorily performed shall be corrected with 48 hours and made acceptable to the Government at no additional cost.

vi. The Contracting Officer’s Technical Representative reserves the right to stop all work under this order if established OSHA safety procedures are not followed or any equipment is deemed unsafe to use.