A21 - (B) PWS_Brandt Island_FY26_GEOTECH_Final_18AUG25.pdf

PERFORMANCE WORK STATEMENT

FOR BRANDT ISLAND

SUBSURFACE INVESTIGATION AND SOIL ANALYSIS,

MOREHEAD CITY HARBOR,

CARTERET COUNTY, NC

August 18, 2025

1. Purpose. A subsurface investigation is required for the purpose of collecting soil and strength parameters for the existing dike and foundation soils. These data will be used to complete slope stability analysis and determine beneficial use options to potentially increase disposal area capacity. Brandt Island is approximately 168 acres in size and located south of the existing Port of Morehead City, across the Morehead City Harbor Channel (Figure 1).

The active portion of Brandt Island disposal area encompasses approximately 64 acres and has a top of dike elevation of approximately 37 feet mean sea level (MSL).

Figure 1 – Site Location Map

2. Description of Services. The Contractor shall mobilize all necessary personnel, equipment, and materials to Brandt Island to conduct a comprehensive geotechnical investigation (Figure 2). Methods of investigation should accurately locate changes in the soil strata. Equipment shall be able to traverse the site in wet, soft, or dry conditions. The scope of work includes the execution of the following subsurface exploration and laboratory testing services:

• Standard Penetration Test (SPT) Borings:

• Twenty (20) SPT borings shall be performed within the contained disposal area to a depth of 60 feet below ground surface (BGS).

• Eight (8) SPT borings shall be performed in the adjacent waters surrounding the disposal area to a depth of 20 feet below the mudline.

• Five (5) SPT borings shall be conducted along the shoreline perimeter to a depth of 20 feet (BGS).

• Cone Penetration Test (CPT) Soundings:

• A total of sixteen (16) CPT soundings shall be completed to depths ranging from

100 feet (BGS) or refusal, whichever comes first, both within the existing dike structure and in the area immediately outside the dike, to assess soil stratigraphy and engineering properties.

• Undisturbed (UD) Borings:

• UD borings shall consist of collecting Shelby tubes in cohesive materials at depths determined from companion/nearby SPT Borings and/or CPT soundings.

• Up to twelve (12) Shelby tubes, three (3) per UD boring, shall be collected to obtain high-quality samples for advanced laboratory analysis not to exceed (NTE) a depth of 60 feet (BGS).

In addition to fieldwork, the Contractor shall be responsible for the collection, transportation, processing, and geotechnical laboratory analysis of soil samples.

Testing shall be performed in a laboratory validated by the U.S. Army Corps of Engineers (USACE). Laboratory testing shall be conducted in accordance with USACE guidelines and relevant ASTM standards to support future engineering evaluations and design activities.

All work shall be completed in accordance with applicable safety, environmental, and regulatory requirements, and coordinated with USACE representatives throughout the duration of the investigation.

The Contractor shall be fully responsible for the transportation of all personnel, equipment, and materials to and from Brandt Island for the duration of the geotechnical investigation.

Brandt Island is only accessible by water vessel; therefore, the Contractor must make all necessary arrangements for marine transportation to support field operations. No reliable land access is available.

3. Site Information. Site maps, navigation charts, and bathymetric maps may be acquired from the technical point of contact (POC). Historical tide data can be acquired from the NOAA Tides and Currents website;

https://tidesandcurrents.noaa.gov/noaatidepredictions.html?id=8665728. Borehole coordinates are given in Table 1 through Table 5 and historical boring logs can be provided upon request.

4. Water Vessel Requirements. All waterborne vessels shall be compliant with established US Coast Guard guidelines and regulations.

5. Field Work. As previously stated, this contract requires thirty-three (33) SPT borings, four

(4) UD sample borings, and sixteen (16) CPT) soundings be conducted.

Standard Penetration Testing (SPT).

a. Each SPT boring is to be advanced by using mud rotary or hollow stem auger with cleanout to the top of the next sample as described in EM 1110-1-1906 and ASTM D1586. The location of the borings is shown in Table 1. Borings shall be performed within 50 feet of the proposed locations and located in the field with a Real time Kinematic (RTK) Global Positioning Systems (GPS) unit. The RTK GPS unit shall have an accuracy within 0.2 feet. The approximate coordinates and locations of the SPT borings are shown in Table 1 through Table 3 and Figure 2. Proposed Boring Location Plan.

Figure 2 – Boring Location Plan

Table 1 – SPT Water Boring Locations

BORING NO. LATTITUDE LONGITUDE DEPTH

BI-26-SPT-WB-01 34.709812 -76.694996 20 FT. below mudline BI-26-SPT-WB-02 34.708996 -76.694198 20 FT. below mudline BI-26-SPT-WB-03 34.710332 -76.695558 20 FT. below mudline BI-26-SPT-WB-04 34.710595 -76.696234 20 FT. below mudline BI-26-SPT-WB-05 34.708565 -76.694218 20 FT. below mudline BI-26-SPT-WB-06 34.709436 -76.703286 20 FT. below mudline BI-26-SPT-WB-07 34.710172 -76.702706 20 FT. below mudline BI-26-SPT-WB-08 34.70988 -76.703076 20 FT. below mudline

Table 2 – Shoreline SPT Boring Locations

BORING NO. LATTITUDE LONGITUDE DEPTH (ft BGS)

BI-26-SPT-SL-01 34.710227 -76.696295 20 FT.

BI-26-SPT-SL-02 34.709607 -76.695558 20 FT.

BI-26-SPT-SL-03 34.708767 -76.694745 20 FT.

BI-26-SPT-SL-04 34.709343 -76.702764 20 FT.

BI-26-SPT-SL-05 34.709962 -76.702385 20 FT.

Table 3 – Inner Cell SPT Borings

BORING NO. LATTITUDE LONGITUDE DEPTH (ft BGS) Notes

BI-26-SPT-01 34.709366 -76.701788 60 FT.

BI-26-SPT-02 34.710325 -76.698926 60 FT. Bulk Sample

BI-26-SPT-03 34.709459 -76.696223 60 FT.

BI-26-SPT-04 34.709684 -76.698741 60 FT.

BI-26-SPT-05 34.709327 -76.69794 60 FT.

BI-26-SPT-06 34.708888 -76.697115 60 FT.

BI-26-SPT-07 34.708148 -76.697308 60 FT.

BI-26-SPT-08 34.709076 -76.699655 60 FT. Bulk Sample

BI-26-SPT-09 34.709325 -76.700397 60 FT.

BI-26-SPT-10 34.70859 -76.699731 60 FT. Bulk Sample

BI-26-SPT-11 34.707528 -76.697197 60 FT.

BI-26-SPT-12 34.707055 -76.698223 60 FT.

BI-26-SPT-13 34.708336 -76.701563 60 FT.

BI-26-SPT-14 34.70799 -76.700994 60 FT. Bulk Sample

BI-26-SPT-15 34.70737 -76.700081 60 FT.

BI-26-SPT-16 34.706893 -76.699194 60 FT.

BI-26-SPT-17 34.708921 -76.701091 60 FT.

BI-26-SPT-18 34.705955 -76.698759 60 FT.

BI-26-SPT-19 34.711177 -76.700568 60 FT.

BI-26-SPT-20 34.711273 -76.698649 60 FT.

b. Continuous split spoon samples should be taken in the upper twenty feet then at five-foot intervals thereafter (e.g. 0’-2’, 2’-4’, 6’-8’, 8’-10’, 10’-12’, 12’-14’, 14’-16’, 16’- 18’, 18’-20’, 23’-25’, 28’-30’, etc.). Topsoil/rootmat depths should be recorded on the boring logs, as well as material breaks within the split spoons.

c. Four bulk samples shall be taken at the specified SPT borings in Table 5. Bulk samples shall be taken in approximate 5-foot intervals and at depths ranging from 0 to 15 feet beneath the ground surface.

d. The depth to water table during drilling and at 24 hours shall also be noted on the drill logs only for borings completed on land. The split spoon sampler shall be driven by a 140 lb. automatic safety drive hammer free falling 30 inches for each blow count. Soil sampling is to be performed carefully to minimize inclusion of drilling sludge in the samples taken. Hammer efficiency of the rig should be provided to USACE.

e. Split spoon refusal is defined as less than 12” of split spoon penetration after a minimum of 100 blows from a 140 lb. safety hammer. Each boring shall be backfilled with bentonite. Open holes shall be covered when no drilling is being done to prevent damage, or injury to animals and people.

f. Soil conditions within the interior are expected to vary in material, including but not limited to: OH, OL, SM, SC, SP, MH, ML, CL, and CH.

g. Approximately 1,500 feet of SPT sampling is estimated for this task. The depths, boring name, and approximate coordinates are shown in Table 1.

Undisturbed Sampling

a. Four auger/rotary borings will be advanced to a depth of up to 60 feet below the ground surface (BGS), for the undisturbed samples. Assume twelve (12) Shelby tubes, three undisturbed samples per auger boring, up to 60 feet BGS. The depth of the undisturbed samples shall be determined from the data collected from the companion/nearby SPT Boring and the CPT soundings. Prior to pushing the proposed Shelby tube sample, depths shall be submitted to USACE for approval. The proposed location and name of the Undisturbed Borings is shown in Table 4.

Table 4 – UD Borings

BORING NO. LATTITUDE LONGITUDE DEPTH (ft

BGS)

BI-26-UD-01 34.710638 -76.70089 60 FT.

BI-26-UD-02 34.708217 -76.702124 60 FT.

BI-26-UD-03 34.704693 -76.694929 60 FT.

BI-26-UD-04 34.70825 -76.698826 60 FT.

b. Undisturbed samples shall be obtained with a three (3) inch outside diameter, thin-walled, Shelby tube sampler, continuously pushed with a fixed-piston type sampler (Hvorslev fixed-piston sampler or equivalent) for a penetration of 30 inches. The overall length of the sampling tube shall be 36 inches. Undisturbed samples are to be taken in accordance with ASTM D 1587, “Thin-Walled Tube Sampling of Soils.”

c. Once samples have been removed from the boreholes for undisturbed soil borings, they shall be sealed within the sampling tube with wax, end caps, and the ends taped prior to shipment to the laboratory for extrusion, classification, and testing. All tubes shall be identified and labeled immediately to ensure correct orientation and to accurately identify the samples. ENG Form 1742 and/or ENG Form 1743 (or equivalent) and should be completed and securely fastened to each sample. Sample tubes shall be shipped to the testing laboratory such that they are not allowed to roll around in the shipping vehicle, nor should they be dropped or otherwise roughly handled. Samples shall be protected from extreme temperatures and exposure to moisture. All storage, extrusion and shipment procedures shall be done in accordance with EM 1110-1-1804, Chapter F, paragraphs 6-5 through 6-7.

d. 240 feet of auguring/mud rotary drilling is estimated for the UD sampling for this task.

Cone Penetration Test Soundings

a. A total of sixteen (16) Cone Penetration Tests (CPT) should be performed to depths shown in Table 7 or CPT push refusal, whichever occurs first. If shallow CPT refusal, less than 20 feet beneath the ground surface is encountered, the sounding shall be offset and re-attempted. This totals approximately 1,600 feet of drilling. The CPT soundings should be performed in accordance with ASTM D5778. The proposed location and name of the soundings is shown in Table 5.

Table 5 – CPT Sounding Locations

BORING NO. LATTITUDE LONGITUDE DEPTH Notes BI-26-CPT-01 34.711393 -76.700013 100 FT. or Refusal Dissipation in sand BI-26-CPT-02 34.711203 -76.699967 100 FT. or Refusal Shear Wave Test/Dissipation in sand BI-26-CPT-03 34.710819 -76.701119 100 FT. or Refusal Dissipation in sand BI-26-CPT-04 34.709559 -76.702345 100 FT. or Refusal Shear Wave Test/Dissipation in sand BI-26-CPT-05 34.708217 -76.702159 100 FT. or Refusal Dissipation in sand BI-26-CPT-06 34.705527 -76.70141 100 FT. or Refusal Shear Wave Test/Dissipation in sand BI-26-CPT-07 34.703702 -76.698783 100 FT. or Refusal BI-26-CPT-08 34.708089 -76.702714 100 FT. or Refusal Dissipation in fine-grained BI-26-CPT-09 34.707987 -76.703162 100 FT. or Refusal BI-26-CPT-10 34.705938 -76.698719 100 FT. or Refusal Dissipation in sand BI-26-CPT-11 34.70459 -76.694855 100 FT. or Refusal Dissipation in fine-grained BI-26-CPT-12 34.707147 -76.694455 100 FT. or Refusal Dissipation in fine-grained BI-26-CPT-13 34.709221 -76.695224 100 FT. or Refusal BI-26-CPT-14 34.709119 -76.695751 100 FT. or Refusal Dissipation in sand BI-26-CPT-15 34.710561 -76.697592 100 FT. or Refusal BI-26-CPT-16 34.7103 -76.697785 100 FT. or Refusal Dissipation in fine-grained

b. Raw data files (.txt or cpt) shall contain depth, tip friction, sleeve friction, and porewater pressure. Raw data files, porewater dissipation test files (.dis) and seismic files (.smc) shall be provided to the Technical Point of Contact (POC) and Contracting Officer Representative (COR) via DoDSAFE. CPT sounding logs for the CPT soundings shall be provided to Wilmington District (SAW) personnel as well as entered into OpenGround. Groundwater readings should be taken at the CPT sounding locations at the completion of drilling. CPT soundings should be filled with bentonite. CPT sounding logs shall include depth, tip friction, sleeve friction, porewater pressure, N160, undrained shear strength, and constrained modulus of elasticity. CPT data shall be entered into USACE Bentley OpenGround Cloud.

c. Perform a total of twelve (12) porewater dissipation tests. For budgeting purposes eight porewater pressures should be performed in sand beneath the water table and the test shall last until 100% dissipation is achieved. Four porewater pressures shall be performed in fine grained soil and should last until 50% dissipation is achieved.

The time for 50% dissipation shall be assumed to take up to 2 hours.

d. Shear wave velocity testing shall be conducted at 3 CPT soundings to 100 ft. or refusal, whatever occurs first.

6. Work Plan. USACE-SAW requests the Contractor to provide a detailed work plan outlining schedule and cost of exploration with submission of their offer.

7. Subsurface Investigations.

a. Location. The Brandt Island Dredge Disposal Area is located within the Morehead City Harbor.

b. Equipment. All equipment will be in safe, working condition not requiring repair when brought to the job site and supplies shall be expected to perform within manufacturer's specifications. Any equipment determined unsatisfactory or unsuitable for performing the work will be replaced immediately.

c. Communications. A cellular phone or other suitable communications equipment needs to be on-site in the event of an emergency.

d. Drilling Rig. The Contractor shall furnish a drill rig that is capable of performing SPT and CPT soundings as specified. The rig should be an ATV capable of drilling on relatively soft ground. The Contractor shall assume that mats may be necessary to access the drilling locations. Drilling equipment furnished by the Contractor needs to include at least two standard 1-3/8-inch I.D. x 2-inch O.D. x 2 feet-long splitspoon samplers (ASTM D-1586 dimensions), bits capable of drilling through gravel, and at least 100 feet of “N” rods, drilling machinery of a type or types approved by USACE, complete with a "safety" drive hammer of 140 lb. weight, safety-hammer and all other accessories for taking SPT samples of soil at the locations shown. Supplies shall include all casing, rods, piping, pumps, drilling mud, sample jars, power, mats, and all equipment necessary to accomplish the required borings, soundings, and sampling. Mechanical clearing will be needed to access the boring and sound locations.

e. Safety Equipment and Accident Prevention Plan. All work will comply with safety guidelines and regulations referenced within EM 385-1-1, “Safety and Health Requirements Manual” dated 15 March 2024. As a minimum, the lead driller will conduct a safety meeting prior to starting work to discuss hazards of the work site and maintain a medical evacuation plan to the nearest medical center. In accordance with EM 385-1-1, an Accident Prevention Plan is required prior to commencing work, and is to be provided to the SAW Safety Officer.

8. Personnel. The Contractor shall provide the appropriate crew, and any additional personnel needed to conduct such subsurface investigation. It is permissible for some of the personnel to serve multi-purpose functions provided that the work can be accomplished safely and satisfactorily.

9. Work Details

a. Mobilization and Demobilization. All drilling equipment and supplies necessary to perform approved work at Brandt Island Disposal Area shall be mobilized to the area.

All equipment and supplies must be removed from the area immediately after the work is completed or as directed by Wilmington District. Refuse disposal should comply with applicable local, state, and federal laws and regulations.

b. Clearing and Cutting. Mechanical clearing of vegetation is anticipated to be required to access the SPT and CPT locations. Some minor clearing of brush, cutting of limbs and small trees, and running over of phragmites should be anticipated. Holes shall be located within 20’ of the proposed location. Contact the technical POC and COR if borings must be offset more than 20’ from the proposed location.

c. Boring Database. Provide all drilling and soil testing data utilizing USACE Bentley OpenGround Cloud configured for the FY26-BRANDT ISLAND-GEOTECH project. USACE will provide necessary permissions to Contractors entering data.

Provide a list of users with name and emails for the Government to grant access. If the Contractor does not already have a license for OpenGround cloud, the Contractor must obtain user-specific "named user" or concurrent licenses. Enter the data for all drill holes and lab results obtained on the project.

d. Backfilling of Boreholes. SPT boreholes and UD boreholes shall be grouted to full depth in accordance with State of North Carolina regulations. Grout mix should consist of 2-parts cement and 1-part bentonite and shall be tremie grouted from the bottom of the hole to the ground surface. CPT soundings shall be backfilled with bentonite.

10. Environmental protection. Little to no environmental impact is expected because drilling mud will be contained within a recirculation tub and will be performed inside the confinement area.

11. Laboratory Testing

General Requirements. Laboratory tests shall be conducted by a soils lab validated by the Corps of Engineers. The Contractor is to provide the name of the USACE validated lab they propose to use. Soils testing shall be the responsibility of the Contractor.

Proposed soil tests should be provided to the technical POC and COR for acceptance prior to conducting. The Contractor shall provide the Wilmington District Corps of Engineers a report that contains all test results. The ASTM standards that will be used for the laboratory tests are shown below in Table 6 along with the estimated number and type of soil tests. The laboratory test results shall be entered into OpenGround by the Contractor.

a. For grain size testing, ASTM D6913, The following sieve sizes shall be used, No.

3/4, No. 4, No. 10, No. 20, No. 40, No. 60, No. 120, and No. 200.

b. Split Spoon Sampling and Bulk Samples. For estimating purposes, the tests for split spoon samples and bulk samples are shown in Table 6.

Table 6 – Laboratory Test for Splits Spoon and Bulk Samples

Test ASTM Standard Quantity Notes

Sieve Analysis w/ hydrometer ASTM D422 60

Following sieves should be used: No.

3/4, No. 4, No. 10, No. 20, No. 40, No.

60, No. 120, and No.

200.

Moisture Content ASTM D2216 60 Soil Classification ASTM D2487 60

Atterberg Limits Multi Point ASTM D4318 20 Organic Content ASTM D2974 15

Dispersive Clay Double Hydrometer ASTM D4221 4

Permeability Constant Head ASTM D2434 3

Conducted at 95% standard proctor, +/-

3% optimum moisture

Direct Shear of soil (single point) ASTM D3080 3

Conducted at 95% standard proctor, +/-

3% optimum moisture

Standard Proctor ASTM 698 3

CBR ASTM D1183 2

Conducted at 95% standard proctor, +/-

3% optimum moisture

Undisturbed Testing. For estimating purposes, the tests for the undisturbed soil samples are shown in Table 7. The approximate depth of the tests, based on the top and bottom depths of the Shelby tube, shall be shown on the report.

Table 7 – Laboratory Tests for Undisturbed Samples

Test ASTM Standard Quantity Notes

Sieve Analysis w/ hydrometer ASTM D422 12

Following sieves should be used: No.

3/4, No. 4, No. 10, No. 20, No. 40, No.

60, No. 120, and No.

200.

Moisture Content. ASTM D2216 12 Soil Classification ASTM D2487 12 Organic Content ASTM D2974 12

Consolidation Testing ASTM D2435 12 10- loads, 8 curves

Unconsolidated Undrained Triaxial Compression Test ASTM D2850 12 points 3 points per tube

Consolidated/Undrained Triaxial Compression Test ASTM D4767 24 points 3 points per tube

Atterberg Limits Multi Point ASTM D4318 12

Permeability Falling Head Rising Tail ASTM D5084 4

Dispersive Clay PinHole Dispersion ASTM D4647 4

12. Boring Database and Records

a. Digital Logging The Contractor is encouraged but not required to utilize tablets in the field for borehole logging, with the software Dataforensics pLog, which is seamlessly integrated with Bentley OpenGround to import data from the field into the database. If a digital data-gathering device is utilized, the Contractor must be able to produce a written or printed backup of field data in case an equipment malfunction causes a data loss. In the event of a data loss, the Contractor is responsible to re-log the hole from the soil samples and must take all necessary steps to ensure the data has been captured prior to soil disposal or storage as applicable.

For digitally collected logs, the geologist or engineer who completed the logs must perform the required verification quality control (QC) of the data in the database, and the Government-approved digital log format must be used to produce PDFs of the logs for submittal according to the same requirements as manually completed logs.

b. Manual Logging- If logs are completed manually, enter the data into the

OpenGround cloud database within 48 hours of the hole being drilled. The geologist or engineer who logged the hole must perform the data entry for continuity, and a separate geologist must perform the QC verification of the data in OpenGround within 96 hours of the hole being drilled.

Provide legible digital scans of the original boring logs to the COR and technical POC via DoD Safe, in PDF format within 48 hours of completion of the hole.

c. Data Entry and PDF Drill Logs- For data entry into OpenGround, Contractor shall provide all field data, in-situ testing data and laboratory test results in OpenGround. Contractor shall utilize fields with dropdown lists where applicable for describing soil, rock and discontinuities in the Field Geological Descriptions Soil, Field Geological Descriptions Rock and Discontinuities tables. Only use additional descriptions for text entry of data when a dropdown list for that feature does not exist. Contractor shall verify there is no applicable field for a data type before using the Comments/Remarks fields in any table to enter data. For example, all laboratory data must be stored in the proper fields and not typed into remarks when the results have the relevant field in the database.

Produce PDF logs of each hole from the Cloud and send to the technical POC via DoD Safe within 24 hours of hole entry into OpenGround and submit in accordance with requirements in SUBSURFACE DRILLING AND SAMPLING.

Submit a notification to the Government that the Finalized OpenGround Cloud Borehole Database is ready for review in the cloud environment within 96 hours of the final hole for the project being drilled.

13. USACE Furnished Materials

An Open Ground database, which includes the Open Ground core log template, shall be used to generate the drilling logs and will be furnished after contract award.

Existing boring logs and laboratory test data performed on the site will be available upon request after the contract is awarded.

14. Reporting Requirements

a. Geotechnical Data Report: The Contractor is responsible for creating a

Geotechnical Data Report. The geotechnical data report, at a minimum, should include the following: a summary of the subsurface exploration, description of the soils encountered, final boring logs, ground water depths encountered during the subsurface exploration, final CPT logs, laboratory test results, a summary table with results of the laboratory test results, and a printout/graph for each soil test conducted. Findings from the tests, (undrained shear strength, effective friction angle, initial void ratio, permeability, percent fines, etc.) should be included in the summary tables for each of the tests conducted.

The Final Report shall be bound and titled; “Brandt Island, 2026 Geotechnical Investigation and Laboratory Analysis Report” containing all the elements and meeting the requirements herein. One hard copy of the Final Report shall be submitted by the Contractor and deemed acceptable by USACE before final payment is made. The geotechnical report shall be signed by at least one professional engineer.

Final Submittals shall be made to the following recipient:

Mrs. Candice M. Barnes (CESAW‐ECE‐G), Civil Engineer, Geotechnical and Dam Safety Section, 69 Darlington Avenue, Wilmington, NC 28403‐1343.

One hard copy and digital copy of the Final Report shall be mailed to Mrs. Barnes.

15. Schedule. The schedule for the work is shown in Table 8. Period of performance for the Geotech work listed in this contract is 180 calendar days from contract award.

16. Cost Proposal. A detailed cost proposal shall be provided. The cost proposal shall include all necessary costs to perform the work as stated in this scope of work. The table to use for the cost proposal is shown in Table 9.

17. Coordination. The principal technical point of contact for this work is Mrs. Candice Barnes (910-251-4546). Submittals shall be made to the Technical POC, with final acceptance from the COR.

18. Bi-Weekly Status Reports. By every other Wednesday following award of the contract, the

COR and technical POC, will be contacted by phone and/or email and provided a brief oral overview of the activities for the previous two weeks. This time will also be used to discuss potential problems and solutions related to contract performance or conditions that might affect performance.

19. Survey. Surveying shall include the determination of the x, y, and z coordinates of each SPT, Undisturbed Boring, and CPT for top of the ground surface utilizing a Real Time Kinetic (RTK) Global Positioning Satellite (GPS) unit with a horizontal and vertical accuracy within

0.2 feet.

20. Survey Control. All vertical control datum shall be in NAVD 88 and horizontal control datum shall be North Carolina State Plane NAD 83.

21. Safety. Safety of all parties is a major concern. The Contractor shall ensure that waterborne transport of personnel and equipment, as well as on-site drilling operations will have a minimal effect on navigation. The Contractor and subcontractor(s) shall comply with all U.S.

Coast Guard requirements and requests, applicable State requirements, and guidance established in the U.S. Army Corps of Engineers Safety Manual. All work shall comply with EM 385-1-1, 15 March 2024 edition, and all applicable Federal, State, and local safety standards. EM 385-1-1 may be viewed and downloaded online at:

https://publications.usace.afpims.mil/USACE-Publications/Engineer-Manuals/. Additionally, all equipment shall be operated in accordance with the manufacturer’s written recommendations.

a. The Contractor shall submit an Accident Prevention Plan to USACE for approval no more than ten (10) 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 at the site and for being transported 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.

b. No person shall be required or instructed to work in surroundings or under conditions that are unsafe or dangerous to his or her health.

c. Contractors with non-English speaking workers shall have a person(s) fluent in the language(s) spoken as well as English to interpret and translate as needed.

https://publications.usace.afpims.mil/USACE-Publications/Engineer-Manuals/

d. Prior to commencement of work, the Contractor shall submit for acceptance, an Accident Prevention Plan (APP) and Activity Hazard Analysis (AHA) for all work associated with the contract. See Attachment 1 for the APP worksheet and Attachment 2 for the AHA form. Work shall not commence without an accepted APP and AHAs. Ten (10) business days, fourteen calendar days, shall be allowed for review of the APP and AHAs, as well as revised APP and AHAs.

e. Daily safety meeting shall be held prior to commencement of work to discuss the day's activities, including weather conditions that may affect the activities. Issues from the previous day's activities shall also be discussed. The COR shall be notified of the time of the meetings and afforded an opportunity to attend. The meetings shall be documented on SAW Form 4. See Attachment 3.

Site Safety and Health Officer. The Contractor shall have a designated Level 3 Site Safety and Health Officer (SSHO). See Chapter 2 of EM 385-1-1 for the definition of Level 3 SSHOs. The SSHO shall be on the project site anytime work is underway.

When the SSHO is off-site, an alternate, equally qualified SSHO shall be on site until the primary SSHO returns. The SSHO shall have a minimum of 3-years of experience in managing safety for barge operation.

f. Employees are responsible for reporting all work-related injuries or illnesses, and property damage as soon as possible to their employer or immediate supervisor.

Employers and immediate supervisors shall report all work-related injuries or illnesses, and property damage to the Procuring Contracting Officer (PCO) within 24 hours. All work-related accidents will be investigated to determine cause. An accident that results in a fatal injury, permanent partial or permanent total disability shall be immediately reported to the PCO. The Final Accident Report shall be submitted to the PCO on ENG Form 3394, Mishap Investigation Report (July 2021) not later than seven days after occurrence of the accident. See Attachment 4.

g. The Contractor shall submit by the fifth day of the current month hours worked for the previous month. See Attachment 5 for the form for submitting monthly exposure hours.

h. Employees working alone shall be provided an effective means of emergency communications. This may be by cellular phone, two-way radio, or other acceptable means. The selected means of communications must be readily available and must be in working condition. No one shall work alone when performing extremely high or high hazard work.

i. Hazardous Substances. When any hazardous substance is procured, used, stored, or disposed, Safety Data Sheets (SDS) for the substances shall be available at the worksite. All employees using, storing, or disposing of hazardous substances shall receive training in the information contained in the SDS for the substance and any general safety and health instruction required to understand the information. When the eyes or body of any person may be exposed to corrosives, strong irritants, or toxic chemicals, suitable facilities for quick drenching or flushing of the eyes and body shall be provided within 10 seconds of the worksite. The Contractor shall submit for acceptance a written Hazard Communication Program.

j. Heat Stress Management. The Contractor shall have a Thermal Stress Management Program that complies with Chapter 6, paragraph 6-7.g of EM 385-1-1. The Contractor shall submit the program for acceptance.

k. Drinking Water. Employees shall be provided an adequate supply of potable drinking water in all places of employment. Cool water shall be provided during hot weather.

Workers shall be encouraged to drink water when working in hot environments.

l. First Aid and CPR. A minimum of two employees on each shift shall be certified to administer first aid and CPR. A minimum of one Type III, 16-unit first aid kit shall be provided.

m. Personal Protective Equipment. Minimum Requirements. Employees shall wear clothing suitable for the weather. Minimum dress shall be short sleeve shirt, long pants (excessively long or baggy pants are prohibited, safety-toe boots. Safety-toe boots shall comply with ASTM F2413. All personnel must wear hard hat, safety glasses, and have hearing protection available.

n. Gloves. Persons involved in activities that subject the hands to cuts, abrasions, punctures, burns, and chemical irritants shall select and use gloves appropriate for the hazard. Gloves shall conform to ANSI 105.

o. Equipment shall be allowed to cool down prior to refueling.

p. Lockout/Tagout. Before an employee performs any servicing or maintenance on any equipment where the unexpected energizing, start up or release of any kinetic or stored energy could occur and cause injury or damage, the equipment shall be locked or otherwise disabled to prevent unexpected energizing, start up or release from occurring.

q. Safety violations should be reported to the Wilmington District Safety Officer, Mr.

Bill Harris, 910-251-4698.

22. Schedule. The estimated schedule for this work is as follows:

Table 8 – Submittals Description and Timeline

Activity Duration (calendar days)

USACE

Responsibility

Contractor Responsibility

Contract Award 1 Accident Prevention Plan (Total Days) 30 APP – Draft and Submit 10 USACE Review of Draft APP 10 APP Revisions and Resubmittal 5 USACE Review of Revised APP & Acceptance 5 Field Work and Geotech Analysis (Total Days) 100 Mobilization of CPT & SPT rig 10 CPT Drilling 10 SPT Drilling 30 Logging – Generate and Submit 10 Laboratory Analysis 40 Geotech Data Report (Total Days) 50 Draft Report - Generate and Submit (electronic copy) 15

SAW Review of Draft Report 10 Report Revisions and Resubmit 10 SAW Review of Final Report and Acceptance 10

Final Submittal (Final Report Hard Copy and Electronic Files)

Total Calendar Days 180Calendar Days

23. Direction. The Contractor shall accept directions only from the Wilmington District

Contracting Officer (KO), Ms. Rosalind 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.

24. Quotes. Contractor quotes shall include the following contract line-item numbers (CLIN):

Table 9 - CLIN Structure for Contract Items

CLIN Unit Unit Cost Subtotal Cost

001 Mobilization/Demobilization to jobsite Job

002 SPT & UD Investigation. Job

003 CPT Investigation Job

004 Lab Testing & Reporting Job

*Workdays, and weather days not utilized by the government will not be paid to the Contractor. The job price and payment made for each item listed constitutes full compensation for furnishing all labor, materials, and equipment, and performing any associated Contractor quality control, safety requirements, and for performing all work required for which separate payment is not otherwise provided.

25. 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 (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

26. Coordination. The COR is Mr. Michael Ellis, P.E. (910-251-4571), and he shall be the

Contractor’s point of contact (POC) for all timeline execution (see Paragraph 22, Schedule).

The Wilmington District technical POC for this task order is Mrs. Candice Barnes, E.I.T.

(910-251-4546). In her absence, contact shall be maintained with Mr. Ellis. The Contractor shall designate a person who shall be the principal point of contact for the Wilmington District in administering this contract. The Contractor's POC 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:

Mike Ellis, P.E.

(michael.m.ellis@usace.army.mil) U.S. Army Corps of Engineers Wilmington District Attn: Mike Ellis, P.E.

69 Darlington Avenue Wilmington, NC 28403-1343

Candice M. Barnes, E.I.T.

(candice.m.barnes@usace.army.mil) U.S. Army Corps of Engineers Wilmington District Attn: Candice Barnes, E.I.T.

69 Darlington Avenue Wilmington, NC 28403-1343

27. Contractor Personnel. The Contracting Officer may direct the Contractor to replace any employee(s) that the KO or COR deems incompetent, careless, insubordinate, under the influence of intoxicating drugs, beverages, etc. or whose continued employment is deemed to be contrary to the public interest. The Contractor shall be responsible for the immediate replacement of any employee under the conditions identified above, in addition to any costs associated with the replacement of an unsuitable employee.

The Contractor shall be responsible for ensuring that all its employees and employees of subcontractors strictly observe the laws of the United States, North Carolina, local counties where work is to be performed, and any other governing bodies which may affect the work to be completed under this contract. Contractors with non-English speaking workers shall have a person(s) fluent in English to be onsite while work is being performed.

28. Anti-Terrorism and Operations Security.

a. General security requirements and guidance: The security requirements described below apply to all contract personnel (including employees of the prime Contractor (“Contractor”) and all subcontractor employees) supporting the performance requirements of this contract. The Contractor is responsible for compliance with these security requirements. Questions regarding security matters shall be addressed to the designated Government representative (e.g., Contracting Officer Representative (COR), Requiring Activity (RA) representative, or Contracting Officer (if a COR or other RA representative is not appointed)). Contract personnel are critical to the overall security and safety of US Army Corps of Engineers (USACE) installations, facilities and activities, and security awareness training contributes to those efforts.

The Department of Defense (DoD) and Army security training requirements specified below, if applicable, are performance requirements; all applicable contract personnel shall complete initial training within 30 days of contract award or the date new contract personnel begin performance on the contract. Within five business days from the completion of training, the Contractor shall provide written documentation (e.g., email or memorandum) to the Government representative. The documentation shall include the names of contract personnel trained and which training they completed;

the Contractor shall maintain training records as part of their contract files and be prepared to provide copies of training certificates to the Government representative.

Contractor personnel and vehicles are subject to search when entering federal installations. Additionally, all contract personnel shall comply with Force Protection Condition (FPCON) measures, Random Antiterrorism Measures (commonly referred to as “RAMs”), and Health Protection Condition (HPCON) measures. The Contractor is responsible for meeting performance requirements during elevated FPCON and/or mailto:michael.m.ellis@usace.army.mil mailto:candice.m.barnes@usace.army.mil

HPCON levels in accordance with applicable RA plans and procedures --this includes identifying mission essential and non-mission essential personnel. In addition to the changes otherwise authorized by the changes clause of this contract, should the FPCON or HPCON levels at any individual facility or installation change, the Government may implement security changes that affect contract personnel. The Contractor shall ensure all contract personnel are aware of their security responsibilities, including any site-specific requirements identified in local policies or procedures.

b. Physical security and access control requirements: All contract personnel requiring physical access to a federal installation or facility shall comply with the access control procedures of that location. Contract personnel requiring unescorted access to meet contract performance requirements on a DoD installation in the US shall be vetted by the installation/facility Provost Marshal/Directorate of Emergency Services/Security Office using the National Crime Information Center-Interstate Identification Index (commonly referred to as “NCIC-III”) and Terrorist Screening Database (commonly referred to as “TSDB”). Contract personnel shall comply with all personal identity verification requirements specified in installation/facility policies and procedures. Contract personnel who do not meet requirements for unescorted access to USACE facilities shall coordinate escorted access with the Government representative, as needed. Contract personnel who receive keys, access cards, or lock combinations that provide access to government-owned property shall comply with key and lock control procedures of the RA.

c. Pre-screen candidates using E-Verify Program: Contractors shall comply with the requirements set forth in FAR clause 52.222-54 Employment Eligibility Verification and FAR Subpart 22.18 in using the E-Verify Program at (https://www.e-verify.gov/) (website subject to change) to meet the contract employment eligibility requirements.

Contractors are encouraged to cooperate with Federal and State agencies responsible for enforcing labor requirements to include eligibility for employment under United States immigration laws in accordance with FAR 22.102-1(i). An initial list of verified/ eligible candidates shall be provided to the COR no later than three business days after the initial contract award. When contracts are with individuals, the individuals will be required to complete a Form I-9, Employment Eligibility Verification, and submit it to the Contracting Officer to become part of the official contract file.

7. Subsurface Investigations.