A2-_SOW_Final.pdf

SCOPE OF WORK

Subsurface Investigation and Geotechnical Laboratory Testing, Kure Beach Storm Damage Reduction Project, Borrow Site B Investigation New Hanover County, NC

September 19, 2017

I. GENERAL REQUIREMENTS

1. General. The Contractor shall furnish all services, labor, equipment, supplies, tools and incidentals necessary to perform vibracore sampling, development of drilling logs, laboratory testing of soils, and other services as specified herein. Vibracore borings are located within the Carolina Beach/Kure Beach Offshore Borrow Area B, located approximately 0.5 to 2.5 nautical miles offshore of Carolina Beach, NC.

The borrow area covers approximately 2.0 square miles, and targeted vibracore locations lie in water depths ranging from -25 to -45 feet, mean lower low water (MLLW) (Figure 1). Vibracore locations denoted within this Scope of Work (SOW) were selected from the analysis of 2012 coring data and respective estimations of recoverable sand thicknesses from within the borrow area (Figure 2). Results from drilling performed under this SOW will be evaluated by the Wilmington District of the U.S. Army Corps of Engineers (USACE) to assess in-situ borrow material movement, as well as the volume, quality, and suitability for beach fill placement.

2. Responsibility. The Contractor shall furnish qualified personnel to ensure the accomplishment of work specified in this SOW. Additionally, the Contractor shall furnish all services, equipment, personnel, and travel required in connection with this SOW. The Contractor shall be responsible for maintaining the submittal timeline outlined in Table 1.

3. Direction. The Contractor shall accept directions only from the Wilmington District Contracting Officer (KO), Ms. Ros Shoemaker (910-251-4436) or her designee. Requests or desires of the Users, Using Agency, or any other party made directly to the Contractor shall be immediately brought to the attention of the KO for this Contract. Any changes to this SOW must be authorized in writing by the KO.

4. Request for Payment.

The Contractor shall provide a copy of the invoice on completion of agreed services. The invoice shall be provided through the US Postal Service or email, to the Technical Point of Contact or the Contractor Officer’s Representative (POC / COR) named below. The contractor shall ensure that the following are included on the invoice:

Contract #

Invoice #

Company Name

Invoiced Line Item(s) must match the Contract Line Item(s)

Small Business, Veteran Owned, or 8A – If applicable, indicate on invoice

5. Coordination. The COR is Mr. Carl Baynard, P.E. (910-251-4089), and he shall be the Contractor’s point of contact (POC) for all submittals and timeline execution (see Paragraph 9, Submittals Timeline).

The Wilmington District technical POC for this task order is Mr. Walter Haven, P.G. (910-251-4495). In his absence, contact shall be maintained with Mr. Baynard. The Contractor shall designate a project manager who shall be the principal point of contact for the Wilmington District in administering this contract. The Contractor's project manager shall be responsible for all coordination to ensure the work is accomplished in a professional manner. Any directions given that are viewed by the Contractor as a change to the SOW affecting contract fee and time shall be brought to the immediate attention of the KO or the COR.

COR and technical POC mailing and email information follows:

Carl F. Baynard, P.E.

(Carl.F.Baynard@usace.army.mil) U.S. Army Corps of Engineers Wilmington District Attn: Carl Baynard 69 Darlington Avenue Wilmington, NC 28403-1343

Walter T. Haven, P.G.

(Walter.T.Haven@usace.army.mil) U.S. Army Corps of Engineers Wilmington District Attn: Carl Baynard 69 Darlington Avenue Wilmington, NC 28403-1343

II. STATEMENT OF SERVICES

1. Description of Work. The Contractor shall perform a total of thirty-nine (39) vibracore borings for this contract. The borings shall be advanced to a maximum depth of 20 feet below the ocean floor. Sampling procedures for all borings shall be accomplished in accordance with the paragraph “Vibracore Sampling.” Preliminary and Final Drilling Logs for all borings shall be accomplished in accordance with the paragraph “Drilling Logs.” In addition to Preliminary and Final Drilling Logs, the Contractor shall take detailed photographs of the cores that highlight changes in lithology. The top and bottom of the boring shall be referenced to the MLLW vertical datum. Laboratory testing on USACE-designated samples shall be accomplished in accordance with the paragraph “Laboratory Testing Procedures.”

2. Purpose. Vibracore drilling, sampling and laboratory testing are necessary to verify the quality and quantity of material remaining within the offshore borrow area, which will be used for the Kure Beach Storm Damage Reduction Project.

3. USACE Furnished Materials. Maps showing vibracore boring locations are provided in Figures 1 and

2. Coordinates are provided in Table 2 in North American Datum (NAD) 1983 Stateplane NC Federal Information Processing Standard (FIPS) 3200 Feet. A gINT database, which includes the SAW Form 1836- A (Vibracore Boring) that is to be used to generate the drilling logs, will be furnished after contract award. GIS files of borings, project bathymetry, and historical data shall be provided on request.

Designated sampling intervals for laboratory testing shall be provided by Wilmington District, based upon the Contractor’s Preliminary Drilling Logs.

4. Vibracore Sampling. Vibracore borings shall be performed within 20 feet of the locations provided by the Wilmington District (Table 2). Vibracore drilling shall be accomplished by vibrating a sampling tube to a depth of 20 feet below the ocean floor or to refusal. Penetrometer data collection shall be recorded and presented to verify vibracore refusal. Vibracore refusal is defined as the sampling barrel having a penetration rate of less than 0.2 feet over a 5-minute period. If vibracore refusal is encountered at the sea bed, the Contractor shall offset up to 20 feet and conduct at least two additional vibracore attempts. Each location where refusal is encountered shall be recorded. For each drilled vibracore location, real-time kinematic (RTK) Global Positioning System (GPS) surveying techniques shall be utilized to provide accuracies of 0.2 feet both vertically and horizontally. Boring identification shall file:///C:/Users/k7ecpwth/Documents/Carolina_Kure_Beach/Carl.F.Baynard@usace.army.mil mailto:Walter.T.Haven@usace.army.mil be designated according to Table 2. Completed vibracores shall be carefully transported to the Contractor’s designated facility for processing, field logging, and visual soils classification. A photographic mosaic log depicting the stratigraphic horizons relative to depth shall be produced for each core. Vibracores shall be field classified and logged in accordance with ASTM D2488 “Standard Practice for Description and Identification of Soils (Visual-Manual Procedure)”. The top and bottom of the vibracores and core photos shall be referenced to MLLW. Once field classification of the core lithology is complete, the Preliminary Drilling Logs, core photographs, and penetrometer records shall be submitted to the Wilmington District to select samples for laboratory testing.

5. Drilling Logs. All drilling logs shall be developed using SAW Form 1836-A (Vibracore Boring), dated June 2016. Preliminary Drilling Logs, at a minimum, shall include the date and time each boring was taken, run time for the boring, the horizontal location of the boring (NAD 1983 Stateplane NC FIPS 3200 Feet), tide-corrected ocean bottom elevation (MLLW), and a visual description of the stratigraphy and the lithology in accordance with ASTM 2488-09A. Supplemental information including depths for the entire length of recovered material, boring recovery, and refusal depth shall also be denoted. The Wilmington District shall determine the sample intervals to be tested from the Preliminary Drilling Logs, in comparison with core photos and penetrometer data. Samples sent for lab testing shall be designated “S-1, S-2, S-3, etc…” on the drilling logs under “column f” on SAW Form 1836-A, with top and bottom depths listed. Wilmington District review and comment period for the Preliminary and Final Drilling Logs shall be in accordance with the submittal timeline provided in Table 1.

6. Laboratory Testing Procedures. Laboratory testing shall be the responsibility of the Contractor.

Laboratory tests shall be conducted by a USACE validated soils testing lab, or a North Carolina Department of Transportation soils testing lab. A listing of USACE validated laboratories is available at:

http://www.erdc.usace.army.mil/Media/Fact-Sheets/Fact-Sheet-Article-View/Article/476661/materials-testing-center/. For estimating purposes, four (4) samples are proposed to be collected from each core for laboratory testing. The maximum number of samples for which laboratory testing is required shall not exceed 156 samples. The Wilmington District shall determine the depth intervals for each test sample based on the Preliminary Drilling Logs. Draft lab test results shall be submitted to the COR or technical POC in accordance with the submittal timeline provided in Table 1. The final laboratory test results shall be included in the Final Report and on the Final Drilling Logs. The laboratory test reports shall include the project name, laboratory name, boring number, sample identification number and date the sample was tested.

Three (3) test procedures shall be performed on each sample:

1) ASTM D6913, “Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis”. The following sieve sizes shall be used: 3/4-in., 3/8-in., No. 4, No. 7, No. 10, No. 14, No. 18, No. 25, No. 35, No.

45, No. 60, No. 80, No. 120, No. 170, No. 200, and No. 230;

2) ASTM D2487 “Standard Practice for Classification of Soils for Engineering Purposes (Unified Soils Classification System);” and

3) Visual, volumetric percentage of shell and rock fragment determination. Visual percent shell content and visual percent rock fragment content shall be estimated for the 3/4-in., 3/8-in., and No. 4 sieve sizes.

7. Cost Proposal. The Contractor shall submit a sampling plan to the USACE as part of his or her proposal. The sampling plan shall include the type of vibracore machine, the size of the vibracore tube, the material from which the tubes are made, the size and description of the vessel(s) to be used, the http://www.erdc.usace.army.mil/Media/Fact-Sheets/Fact-Sheet-Article-View/Article/476661/materials-testing-center/ http://www.erdc.usace.army.mil/Media/Fact-Sheets/Fact-Sheet-Article-View/Article/476661/materials-testing-center/ number of boat and drill crew members, the qualifications of the laboratory performing analyses, and a description of the survey equipment to be used to collect coordinate and elevation data. For the cost proposal, the Contractor shall assume 39 vibracore borings, 156 soil gradation tests, 156 soil classifications, 156 visual determinations of shell and rock fragment content for the no.4, 3/8 in., and ¾

in. sieves, 39 Preliminary Drilling Logs in gINT format, 39 photographic mosaic logs, a gINT database, an Excel summary spreadsheet of all laboratory data, and a Final Report including Final Drilling Logs and laboratory analyses. The estimate shall include daily costs for vessel operation and number of days required for the vibracore drilling effort.

8. Reporting Requirements. The Contractor shall furnish a preliminary field data package and a Final Report to the Wilmington District. The preliminary field data package shall consist of the following:

Preliminary Drilling Logs; core photographic mosaics; and penetrometer data. These items shall be submitted within 15 calendar days of completing drilling operations, in accordance with the submittals timeline on Table 1. The core photographic mosaics, penetrometer data and drilling logs shall be submitted at the same time to allow USACE to select samples for testing. USACE review and feedback of Contractor submittals shall be in accordance with the submittal timeline shown in Table 1. A Draft Final Report shall be submitted to USACE for review and final comments. The Final Report shall include a description of the work, a map with the final vibracore boring locations, Final Drilling Logs, penetrometer records, core photographic mosaics, and lab test data, complete with gradation tables and curves for each sample tested and a summary table. In addition to the hard copy of the Final Report, the Contractor shall furnish electronic/digital files containing all the lab test data in Excel and PDF formats, the gINT project database file, and ArcGIS shapefiles, layers, feature classes, or geodatabase information showing vibracoring locations. Electronic/digital lab test data files shall contain the project name at the top, boring number, sample identification number, depth of sample, visual classification, and percentage passing each sieve (highlight #200 sieve), and visual percent of rock and shell content.

9. Submittals Timeline. The Contractor is responsible for maintaining the Submittal Timeline shown below.

Table 1. Submittals Description and Timeline.

Event Expected Duration USACE Responsibility

Contractor Responsibility

Contract Award 1 Calendar Day

E-Verify (Initial) List of Designated Employees Submittal

3 Business Days

Safety Plan Submittal 4 Calendar Days

USACE Safety Plan Approval 3 Business Days

Notice to Proceed 1 Business Day

Mobilization & Drilling 11 Calendar Days

Cut, Photograph & Log Vibracores

15 Calendar Days

Preliminary Drilling Log, Photograph & Penetrometer Submittal

1 Calendar Day

USACE Sample Selection 2 Business Days

USACE Review & Comment Preliminary Logs

5 Business Days

Draft Lab Test Submittal 24 Calendar Days from USACE sample selection

Draft Final Report Submittal 6 Calendar Days from Contractor 's receipt of lab data

USACE Review & Comment Draft Final Report

5 Business Days

Final Report Submittal 4 Calendar Days

Contract Closeout 10 Calendar Days

Approximate Total 100 Calendar Days

If the Contractor encounters unforeseen delays in meeting an event on the timeline, he or she shall notify the KO and COR in writing NLT 5 business days prior to the due date. The Contractor shall describe the circumstances that led to the delay, his or her immediate actions to mitigate impacts to schedule, and event/timeline updates.

Submittals shall be sent electronically to the KO, COR and Technical POC’s listed below:

Rosalind.M.Shoemaker@usace.army.mil (or her designee);

Carl.F.Baynard@usace.army.mil; and

Walter.T.Haven@usace.army.mil.

The Final Report shall be bound and titled; “Subsurface Investigation and Geotechnical Laboratory Testing Results, Kure Beach Storm Damage Reduction Project, Borrow Site B Investigation”, containing all the elements and meeting the requirements herein. Two hard copies of the Final Report shall be submitted, and be deemed acceptable before final payment is made.

Final Submittals shall be made to the following recipient:

Mr. Carl Baynard, P.E. (CESAW-ECP-EG), Civil Engineer, Geotechnical and Dam Safety Section, 69 Darlington Avenue, Wilmington, NC 28403-1343.

One hard copy of the Final Report shall be mailed to Mr. Carl Baynard and a digital copy shall be provided (via share portal) to the technical POC, Mr. Haven.

10. Safety. Safety of all parties is a major concern. The Contractor shall coordinate the work effort with the U. S. Coast Guard and comply with all their requirements and requests. The Contractor shall ensure that drilling operations have a minimal effect on navigation. The Contractor shall comply with guidance established in the Corps of Engineers Safety Manual, EM 385-1-1, dated 30 NOV 2014 and any applicable State, Federal, and U. S. Coast Guard regulations. The Contractor shall submit an Accident Prevention Plan to USACE for approval no more than four (4) calendar days following contract award. No work shall be performed until the plan is approved by USACE. The plan shall follow the guidelines established in EM 385-1-1 to include: the location of the work site; verified emergency contact information to the local US Coast Guard station; evacuation plan to the nearest medical facility; emergency radio frequencies and telephone numbers; required safety equipment; certified first aid personnel; spill prevention and HAZMAT information; and an Activity Hazard Analysis. The Contractor shall be responsible for conducting a daily Safety Brief and Risk Assessment prior to commencing work each day. All personnel shall be properly clothed and protected for working on the water. Wilmington District reserves the right to halt drilling operations for any safety violations. The Wilmington Safety Officer is Mr. Bill Harris and he may be reached at 910-251-4698.

11. Anti-Terrorism and Operations Security.

The Contractor shall pre-screen candidates using the E-Verify Program (http://www.uscis.gov/e-verify) website to meet the established employment eligibility requirements. The vendor shall ensure that each Candidate has two valid forms of government issued identification prior to enrollment to ensure the correct information is entered into the E-Verify System. An initial list of verified/eligible candidates shall be provided to the COR no later than 3 business days after the initial contract award. When contracts are with individuals, the individuals shall be required to complete a Form I-9, Employment Eligibility Verification, with the designated Government representative. This Form shall be provided to the KO and shall become part of the official contract file.

mailto:Carl.F.Baynard@usace.army.mil mailto:Walter.T.Haven@usace.army.mil http://www.uscis.gov/e-verify

12. Boring Coordinates and Figures (attached).

Table 2. Coordinates for Kure Beach Storm Damage Reduction Project, Borrow Site B Vibracore Targets. Horizontal Datum is NAD 1983 Stateplane NC FIPS 3200 Feet.

Vibcore ID Easting Northing Maximum Penetration

Vibcore ID Easting Northing Maximum Penetration

KBV-18-01 2341568 111444 20 ft. KBV-18-21 2347002 111551 20 ft.

KBV-18-02 2341463 110499 20 ft. KBV-18-22 2346495 110542 20 ft.

KBV-18-03 2341533 109402 20 ft. KBV-18-23 2346488 109509 20 ft.

KBV-18-04 2342491 111506 20 ft. KBV-18-24 2347523 110495 20 ft.

KBV-18-05 2342592 110622 20 ft. KBV-18-25 2347365 109492 20 ft.

KBV-18-06 2342552 109662 20 ft. KBV-18-26 2347143 108577 20 ft.

KBV-18-07 2342443 108499 20 ft. KBV-18-27 2348428 110569 20 ft.

KBV-18-08 2343472 112608 20 ft. KBV-18-28 2348525 109499 20 ft.

KBV-18-09 2343531 111499 20 ft. KBV-18-29 2348579 108426 20 ft.

KBV-18-10 2343872 110515 20 ft. KBV-18-30 2347997 107366 20 ft.

KBV-18-11 2343925 109542 20 ft. KBV-18-31 2349456 110617 20 ft.

KBV-18-12 2343456 108548 20 ft. KBV-18-32 2349643 109562 20 ft.

KBV-18-13 2344538 112576 20 ft. KBV-18-33 2349009 107509 20 ft.

KBV-18-14 2344645 111461 20 ft. KBV-18-34 2349317 106615 20 ft.

KBV-18-15 2344540 108506 20 ft. KBV-18-35 2349405 105863 20 ft.

KBV-18-16 2345559 112534 20 ft. KBV-18-36 2350016 108502 20 ft.

KBV-18-17 2345504 111548 20 ft. KBV-18-37 2349995 107440 20 ft.

KBV-18-18 2345521 110342 20 ft. KBV-18-38 2350041 106285 20 ft.

KBV-18-19 2345488 109523 20 ft. KBV-18-39 2350643 109576 20 ft.

KBV-18-20 2345523 108579 20 ft.