B08_140G0218R0021-2_Attch_3_Revised_PWS.docx

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CORING LAKE POWELL Federal contract opportunity
Solicitation number
140G0218R0021
Issued by
Department of the Interior US Geological Survey

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140G0218R0021-2 Attch 3 Revised Performance-based Work Statement

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140G0218R0021 Amendment 0002 Attachment 3 Revised Performance-based Work Statement

PERFORMANCE-BASED STATEMENT OF WORK

Lake Powell Coring

1.0 GENERAL INFORMATION

1.1 Introduction

The Department of the Interior (DOI) U.S. Geological Survey (USGS) Utah Water Science Center (WSC), 2329 W. Orton Circle, Salt Lake City UT 84119, has a requirement to collect sediment cores for scientific study. Approximately 8–10 sediment cores, totaling about 500 meters (~1600 feet), will be collected, from the San Juan and Colorado River deltas, Lake Powell. Drilling will take place from late October through late November, 2018. During this time, approximately 28 days will be spent on the lake. There will be an estimated 10–14, 24-hour days of actual drilling/coring from a barge. The remainder of the time will be spent in transit to, from, and between drill sites. The contractor shall supply drill rig, all supplies related to its operation and maintenance on water, and trained personnel for the purpose of collecting continuous and undisturbed cores.

1.2 Background

This study will be carried out in cooperation with the Utah Department of Environmental Quality, Division of Water Quality. These scientific efforts are motivated by the August 5, 2015, Gold King Mine (GKM) spill from the Bonita Peak Mining District into the upper Animas River, which brought significant attention to the transport and fate of sediment in this watershed. The event released 3 million gallons of mine-impacted water, and transported 490,000 kilograms (~540 tons) of metals down the San Juan River. The vast majority of the fine-grained sand came to rest in Lake Powell by August 2016.
Sediment traps deployed by the USGS in 2015, and continuously operated since, indicate sedimentation rates in the San Juan delta of 8–180 cm/year. The San Juan delta continues to accumulate sediment with high potential for toxic concentrations of numerous metals (especially As, Cd, Cu, Hg, Pb, Se, and Zn). Cores from both the San Juan and Colorado River deltas will be analyzed for these and other trace metals to determine their total mass, spatial distribution, bioavailability, and potential risks posed to water quality in Lake Powell.

1.3 Study Objective

The objective of this phase of the study is to drill through the full thickness of both the San Juan and the Colorado River deltas in multiple locations. A longitudinal transect will be targeted for drilling in each delta. It is expected that continuous cores of deltaic sediment at each location will terminate either in pre-Lake Powell alluvial deposits (silt, sand, gravel) or sandstone bedrock of the Glen Canyon Group to ensure that the deltaic sediments have been drilled through their full thickness. The retrieved cores will be used to study mineralogy and geochemistry at the mm scale; therefore, specialized drilling equipment and experience is required to retrieve undisturbed sediment.

1.4 Scope of Work

Commercially available services, non-personal, to provide all plant equipment, labor, travel, and materials (unless otherwise provided herein) necessary for on-site, Lake Powell, sediment core collection described in this work statement.

Drilling will take place from a barge beginning late October, 2018. The water depth at most drill sites will not exceed 300 feet, but depths from 10 to 400 feet may be encountered. Coring locations will be predetermined by the USGS using 2017 bathymetry, and will have undergone detailed site surveys including geophysical work in September of 2018 to ensure the optimal location of drill sites. See attached Lake Powell map for approximate locations of coring sites in relation to two potential mobilization/demobilization sites (Bullfrog and Wahweap). Geographic coordinates with better than 10-meter horizontal resolution will be provided for each site, though small site moves may be required as drilling progresses and success is evaluated onsite. Priority drill sites will be 1) in the San Juan delta, and 2) in areas where deltaic sediment is estimated to be thickest. At these locations, the temporal resolution of the sediments will be highest, and more material can be retrieved per day. General sediment thicknesses are expected to vary from 50 to 300 feet, depending on the site’s position within the delta.
Actual drilling will take place 24 hours per day with two crews working in 12-hour shifts. Each shift will be accompanied by two representatives from the USGS. Inclement weather and unforeseen circumstances may arise that shorten or prevent data collection during any particular day or part of a day. Safety will be addressed daily and will never be compromised.

2.0 WORK REQUIREMENTS

2.1 Technical Requirements

2.1.1 Equipment: Contractor shall provide and mobilize/demobilize drill rig, and all related equipment needed for its operation. The NPS can provide to the contractor, at no charge, the use of a "flexi-float" barge. This barge is comprised of 6 each 10'x40' barge sections that can be configured and connected into various shapes. This barge also includes 2 each 10'x20' wedge sections that can be utilized for loading and unloading of equipment. Project specific modifications to this barge are relatively easy as the barge is constructed of steel which allows easy welding of components to the deck and structure. The NPS would ask that any and all modifications be removed and surfaces restored to their original condition prior to the barges being returned (see 4.0: Government Owned Equipment). The contractor shall provide a barge pusher to move the NPS barge to/from drilling locations. The only known barge pusher vendor on Lake Powell is Aramark Management Services. The contractor may subcontract with other barge pusher (tug boat) vendors provided the vendors comply with state and federal standards or laws that may include special licensing and invasive species inspections. Aramark has agreed to rent a barge pusher (pilot included) at the rate of $1,900.00 per day.

A critical task for the contractor will be developing a system for anchoring and/or mooring the barge during operations to be planned and implemented through consultations with the National Park Service (NPS), which manages Glen Canyon National Recreation Area with high priority on both visitor experience and preservation of the environment. Contractor shall provide all equipment needed to anchor barge in canyon areas and shall have hand-held communication devices to aid in guiding and anchoring barge at each site. Contractor shall configure the barge to meet their needs. Contractor shall load and secure the drill rig using equipment owned or leased by them, including any required cranes, forklifts, and dunnage. Contractor shall place the drill rig onto the barge and secure it for transport. The barge pusher shall adhere to safe driving practices and remain with the barge until the barge is properly anchored or given permission otherwise. Due to long transit times to the initial site, drillers shall plan to rig up during transit. Space in marinas for mobilizing is also of high value and shall only be occupied as needed. Mobilization and demobilization within a 24-hour timeframe is desirable. If the contractor cannot mobilize within 48 hours, any extra days will not be covered by mobilization costs nor by standby day rates. Standby rates will commence once the barge and drill rig are in transit to the first site.

Cell phone coverage is very limited. Contractor shall anchor the barge securely at each site in accordance with the tolerances of Glen Canyon National Recreation Area (NPS) personnel on the project. Contractor cannot drill permanent anchors into any rocks. Mooring to the shoreline may be acceptable if risk to recreational users can be mitigated. In the event that surface mooring is not acceptable, the contractor shall provide means of anchoring the barge that serve both the scientific needs of the project, and the environmental and safety concerns of NPS. Prolonged issues related to the logistics of anchoring the barge shall be rectified at no additional cost to the government.

The contractor shall provide standard safety equipment for their employees according to safety and health regulations for construction, outlined in 29 CFR 1926, including but not limited to U.S. Coast Guard-approved life jackets or buoyant work vests for working over water. Contractor shall provide a Draft Safety Plan to the USGS for review 45 days prior to mobilization. Contractor shall provide portable toilets on the barge.

Contractor shall remove the drill rig from the barge, and return the leased barge to the vendor. Drillers shall rig down during transit back to the demobilization site, and demobilize from the drill rig within a 24-hour timeframe. If the contractor cannot demobilize within 48 hours, any extra days will not be covered by demobilization costs nor by standby day rates. Standby rates will terminate once the barge is docked in the marina and demobilization begins. Cost for staff time to return the barge and clear the marina beyond the 48-hour timeframe shall be borne by the contractor.

Contractor shall ensure that enough spare components are available to provide for continuous operation, and that no routine service is scheduled during this project. Any routine maintenance of drilling equipment that will be due during the scheduled work should be done prior to mobilization. Contractor shall provide their own land-based storage container if needed for equipment. Contractor shall adhere to specifications determined by Glen Canyon National Recreation Area staff during pre-drilling consultations and planning. If contractor does not meet these specifications, contractor shall further restore the site at no additional cost to the government.

The USGS will provide a raft or small boat that will always remain with the barge for emergencies. The USGS will provide a support boat for transporting personnel during shift changes and to periodically move cores to a USGS-provided land-based storage container. The USGS will provide a satellite phone that will remain on the barge, replacement battery packs, and one SPOT for the support boat.

2.1.2Equipment operator(s): Contractor shall provide personnel for mobilizing, demobilizing, maneuvering and anchoring the barge, and operating all drilling and support equipment. Contractor shall provide qualified operators to support two shifts capable of safely and successfully drilling and collecting cores 24 hours per day.
Contractor shall provide a barge pusher to move the NPS barge to/from drilling locations. Contractor shall provide captains/pilots for the barge pusher that are properly licensed in accordance with state and federal law. The contractor may obtain services via subcontract from Aramark or may bring in their own barge pusher captain or pilot. The contractor shall assume responsibility for the qualifications of the subcontracted barge pusher pilot.

Two USGS personnel will be with drill crew at all times. USGS will provide an operator for the support boat for moving personnel to and from the barge during shift changes.

2.1.3 Supplies: Contractor shall provide all supplies needed for mobilizing, demobilizing, anchoring the barge, and operating the barge and drill rig, including fuel. Contractor shall not use any drilling fluids unless USGS personnel deem that it is necessary. In select instances, such as recovering problematic sediment core or withdrawing equipment, the use of environmentally safe drilling fluids shall be permitted. If needed, contractor shall provide and use only food-grade fluids. Contractor shall provide all supplies needed to collect, retain, cut, cap, and label up to 500 meters (1600 feet) of continuous lacustrine sediment cores. The USGS will provide crates to store and transport cut cores.

2.1.4 Acquisition of cores: Contractor shall collect continuous cores, using a wireline core drill and a custom PQ coring system to achieve cores of at least 2.5 inches in diameter. Cores shall be retrieved using a hydraulic piston corer and specially designed core catchers for lacustrine sediment.

Cores shall be acceptable for reconstruction of depositional history at the centimeter scale. Core recoveries (length of core sample/length of drive) are expected to be 75 percent or more for 80 percent of the cores collected. Cores should contain undisturbed sediment suitable for microstratigraphic work including scanning and sampling at millimeter to centimeter scale resolution. Core samples will be inspected in the field by designated technicians. If cores do not meet acceptable tolerances, contractor shall adjust drilling methodology to meet tolerances. For every 50 feet of drilling, if the 80 percent tolerance is not met, the contractor shall re-core that 50-foot depth interval in a new location at no additional cost to the government.

2.1.5 Drilling records and documentation: Contractor shall document all drilling and core retrieval efforts, making special notes of irregularities and problems. Personnel from the USGS will sign off on the drilling logs during each shift change, and the contractor will submit a summary drilling report upon completion of the project.

2.2 Technical Products and Deliverables

2.2.3 Cores: Contractor shall collect at least 100 meters and up to 500 meters (1600 feet) of undisturbed sediment core samples while drilling within the fixed 28-day program. The amount of core collected will be determined by the sediment and coring conditions encountered. Cores will be continuously collected by contractor at each drill site, and cut, capped, and cataloged by USGS personnel. The cores will be stored on the barge in crates until docked, or may intermittently be transported by USGS support boat to land-based storage container.

2.2.2Logs: Contractor shall provide two copies of all drill logs, and a summary drilling report, no more than 30 days after completion of drilling.
2.2.3Property and Data Rights: All cores shall become the property of the USGS. All data generated during the drilling process and from core analysis are the property of the USGS. The contractor shall not release any data or information about the drill sites without written approval form the USGS. The USGS will use data generated from core collection and subsequent analyses to address questions set forth in the objectives of this study. Results will be published and made available to the public.

3.0 SUPPORTING INFORMATION

3.1 Work to Be Addressed by Contractor

Contractor shall lease equipment that they do not own and configure the barge to meet their needs prior to drilling. Contractor is responsible for supplying all equipment, supplies, and trained personnel for the setup and operation of drill rig, the collection of undisturbed continuous cores, and for documenting the general operation. Contractor shall remove any garbage from barge, boats, launch and storage areas when demobilization is complete. Every effort shall be made by contractor to restore a work site to its original condition. Contractor is NOT authorized to conduct any work outside the scope of what is required in this Statement of Work.

3.2 Place of Performance

The proposed work shall be conducted on Lake Powell, southeastern Utah and northeastern Arizona. The exact staging and launch site on Lake Powell has yet to be determined but will be either Bullfrog or Wahweap Bay, or a combination of the two.

3.3 Period of Performance

Drilling/coring during October and November 2018 is necessary due to lower lake levels, reduced tourism, and availability of barge and barge pusher. Delays due to inclement weather may be unavoidable, and may push work into early December. The anticipated date of staging in preparation of launch is October 20, 2018, but the USGS reserves the right to modify the start date by two weeks either way if inclement weather looks eminent, for other unpredictable circumstances, or due to availability of barge, barge pusher, or appropriate personnel.

3.4 Work Hours

Work hours and conditions will meet or exceed OSHA standards and other Federal, state, and local statutes, laws, regulations, and codes. When the barge is in transit, work hours will continue as long as the barge can be safely navigated (potentially 24 hours a day). Once barge is anchored and drilling commences, work will continue 24 hours per day, using 2, 12-hour shifts when weather and lake conditions permit. Due to long transport times to and from the drilling sites it is expected that mobilization and demobilization will be expedited to save time and to reduce impact to marinas, these expedited efforts will be achieved by rigging up/rigging down during the initial and final site moves.

3.5 Travel

Contractor will be responsible for travel to/from the Lake Powell staging and launching site

3.6 Accommodations

The contractor shall provide land based lodging during mobilization and demobilization, as well as, accommodations during drilling (e.g., rented houseboat or similar suitable situation). The houseboat will provide a restroom, meal preparation area, and space for rotating shifts to sleep. The houseboat will be used by up to 4 personnel in addition to the contracted drill crew.

3.7 Insurance

Contractor must carry their own insurance in accordance with state and federal law for equipment and non-USGS personnel supplied under this Statement of Work. In the state of Utah, bodily injury/death and property damage insurance are required for all boats powered by engines of 50 horsepower or more. Each vessel must have at least $25,000/$50,000 for bodily injury/death coverage and $15,000 for property damage or a $65,000 combined minimum per accident. Proof of insurance must be carried onboard the boat whenever it is in operation. The USGS is not liable for any loss, damage, or injury occurred while working under this Statement of Work unless it is due to gross negligence of the USGS or its employees.

3.8 Security

Contractor shall provide the USGS with copies of government issued IDs of all employees who will be working under this contract. The USGS reserves the right to perform security checks on employees. If, in the judgment of the USGS, any employee fails to meet minimum security requirements, the contractor, upon request, shall remove employee from any work under this contract.

3.9 Safety

Personnel may be subjected to uncomfortable environmental conditions including boat movements that cause sea sickness, hot/cold air temperatures, intense sun, and close quarters. All USGS, NPS, and contracted-driller personnel will be expected to follow the on-site Safety Plan at all times, including, but not limited to, wearing PFD’s.

4.0 GOVERNMENT OWNED EQUIPMENT

The NPS can provide to the contractor, at no charge, the use of the "flexi-float" barge. This barge is comprised of 6 each 10'x40' barge sections that can be configured and connected into various shapes. This barge also includes 2 each 10'x20' wedge sections that can be utilized for loading and unloading of equipment. Project specific modifications to this barge are relatively easy as the barge is constructed of steel which allows easy welding of components to the deck and structure. The NPS would ask that all modifications be removed and surfaces restored to their original condition prior to the barges being returned. Any additional equipment associated with the operation and maintenance of the barge will be provided by the contractor. The contractor shall be responsible for inspecting the barge prior to check-out and returning the equipment in a condition that is reasonably equivalent to its initial state.

QUALITY ASSURANCE SURVEILLANCE PLAN (QASP)

Mobilization/demobilization and equipment quality assurance USGS scientists shall confirm that the barge and barge pusher are returned in a reasonably equivalent condition, less normal wear and tear, and that all modifications to the barge have been fully removed.

Acceptable tolerances for anchoring of barge at drill sites USGS scientists shall confirm that the contractor has anchored the barge at drill sites in accordance with NPS guidelines.

Acceptable tolerances for core samples USGS scientists shall determine that core samples have been collected and preserved such that they are in an acceptable condition for the purposes of this study.

Acceptable tolerances for site restoration USGS scientists shall determine that all drill sites are left in accordance with NPS guidelines.

Acceptable tolerances for personal and environmental safety USGS scientists shall be responsible that all personal and environmental safety measures are followed.

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