1669917spc_attachments (3 of 4).pdf

Repair 3rd Battalion Pond Causeway eProjects WON 1669917 MCRD Parris Island, SC

Final Design Submittal July 2024

TETRA TECH SINKHOLE REPAIR REPORT

Repair 3rd Battalion Pond Causeway eProjects WON 1669917 MCRD Parris Island, SC

Final Design Submittal July 2024

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To: Jose Parra, RPM NAVFAC MIDLANT

From: Mark Pisarcik, PM Tetra Tech EC, Inc.

Date: April 26, 2019

Subject: Draft Letter Completion Report, Sinkhole Repairs, MCRD Parris Island, SC

Project No. N62470-13-D-8007, Contract Task Order JM02

Document No. 4659-JM02-19-0097

1.0 INTRODUCTION

Tetra Tech EC, Inc. (TtEC) has been contracted by the United States (U.S.) Department of the Navy (Navy), Naval Facilities Engineering Command (NAVFAC) Mid-Atlantic under NAVFAC Atlantic Remedial Action Contract N62470-13-D-8007, Contract Task Order JM02 to perform culvert and causeway repairs at Site 3, Marine Corps Recruit Depot (MCRD) Parris Island, located on Parris Island, South Carolina. A Site Location and Vicinity Map for Site 3 is included as Figure

1. A Site Overview showing the two culvert areas is included as Figure 2. This Letter Completion Report has been prepared to document the field activities implemented to address newly formed sinkholes and other void areas at the north and south culvert areas of the causeway. The letter includes background information, a summary of field activities, a health and safety summary, a quality control summary, and supporting attachments.

2.0 BACKGROUND

In December 2018, new sinkholes were discovered at the causeway. These sinkholes were significant enough to require closing the causeway road, which is one of only two access roads to MCRD Parris Island. A preliminary geophysical survey of the culvert areas of the causeway was completed in January/February 2019. The findings were included in a letter from MCRD Parris Island to the U.S. Environmental Protection Agency and South Carolina Department of Health and Environmental Control, dated February 13, 2019 (MCRD 2019). The anomalies identified during the preliminary geophysical survey are shown on Figures 3 and 4. To address these anomalies, the Navy requested that TtEC perform immediate sinkhole repairs. A Letter Work Plan, outlining the operational approach to address the sinkholes and void areas by injecting structural polyurethane foam grout in the subsurface of the causeway at the north and south culvert areas, was prepared and submitted on February 21, 2019 (TtEC 2019a).

3.0 SUMMARY OF FIELD ACTIVITIES

The following field activities were implemented by TtEC and its subcontractors during March 2019 to complete the immediate sinkhole repairs at Site 3: mobilization, site preparation, injection activities, site restoration, waste management, and demobilization.

3.1 MOBILIZATION

Project personnel, equipment, materials, and temporary facilities were mobilized to MCRD Parris Island as needed to execute the field activities. Temporary facilities included portable toilets, a portable handwash station, and a dumpster for general trash service. The temporary facilities were installed in the support areas shown on Figures 3 and 4. Mobilization activities were completed on March 4 and 5, 2019.

TtEC followed the MCRD Parris Island Ground Penetrating Activity Standard Operating Procedure (SOP) during the execution of the immediate sinkhole repairs. The Ground Penetrating Activity Permit Request Form was completed and submitted to MCRD Parris Island.

In accordance with the SOP, South Carolina 811 was notified prior to submitting the request form so that the ticket numbers could be included. In addition, a third-party utility locator, Ground Penetrating Radar Systems, was utilized to locate and identify subsurface utilities in the work areas. A copy of the third-party utility locate report is included as Attachment 1.

3.2 SITE PREPARATION

Following mobilization, site preparation activities commenced on March 5, 2019. TtEC established work areas and support areas as required to complete the project activities. The causeway road remained closed during the sinkhole repair activities. To the extent possible, TtEC utilized the paved portion of the causeway for support areas to limit disturbance to grassy areas.

Two support areas were established, one on the land side of each culvert area, as shown on Figures 3 and 4. Vehicles and equipment accessed the culvert areas from the land side of each culvert area and were not permitted to travel over known sinkhole areas. The support areas were used to stage material and equipment during execution of the field activities. A poly-lined, bermed and covered staging area was established at the northwest end of the causeway for storage of bulk containers of injection material.

The proposed injection grid was marked out at both culvert areas and was adjusted slightly as needed to account for underground utilities and guard rails. In the north culvert area, one row of injection points was eliminated due the presence of an underground communication line. In the south culvert area, 10 injection points were added on the north side of the road to ensure all identified anomalies and surface depressions were captured by the injection grid. The as-built injection grid was surveyed to document the injection points. The survey is included in Attachment 2 and the injection points are shown on Figures 3 and 4.

As a precautionary measure, TtEC installed floating booms at both sets of culvert pipes on both ends of the pipes to catch injected material that could pass through the open lifting holes of the pipes and into the pond or marsh. The injection material is a foam product that floats on top of the water, making it easy to identify and recover using the boom to pull it to shore or using a pool skimmer. Injection material was observed floating on the water surface while injecting at the 6-foot and 9-foot depth intervals in the north culvert area, and while injecting at the 6-foot depth interval in the south culvert area. All observed injection material was captured by the booms, recovered using pool skimmers, and placed in a dumpster for disposal as general construction debris.

3.3 INJECTION ACTIVITIES

Following completion of the site setup activities, injection activities commenced on March 12, 2019. UMA Geotechnical Construction was subcontracted to provide the injection services.

Structural polyurethane foam grout was injected into the subsurface of the causeway at the north and south culvert locations. The injection material used was a two-part mixture consisting of BaySystems 486Star-4# Resin and Mondur MR Isocyanate. Product data for the injection material used is included in Attachment 3. The horizontal and vertical extents of the injection areas are shown on Figures 3 and 4. For the areas shaded blue, sacrificial injection rods were driven on a 4-foot by 4-foot horizontal grid at 3-foot and 6-foot vertical intervals to achieve the desired 6-foot treatment depth. For the areas shaded yellow, sacrificial injection rods were driven on a 4-foot by 4-foot horizontal grid at 3-foot, 6-foot, and 9-foot vertical intervals to achieve the desired 9-foot treatment depth. The structural polyurethane foam grout was then injected into the subsurface through the sacrificial rods. During injection activities, the injection volume was monitored and documented. The roadway surface was monitored for movement using a laser level with receivers surrounding the injection point. Injection was stopped at each injection point when movement of 1 to 2 millimeters was detected at the surface, when material was observed daylighting at the ground surface, or if high pressure was encountered at the injection gun. A total of 8,445 pounds of material was injected into the ground at the north culvert area, and a total of 8,727 pounds of material was injected into the ground at the south culvert area. The injection footprints and injection quantities are shown on Figures 3 and 4. Tables presenting the injection quantity at each point and depth are included as Attachment 4. Injection activities were completed on March 28, 2019.

3.4 SITE RESTORATION

Following injection activities, TtEC broke down the equipment, collected excess materials, and performed general cleanup and housekeeping of the work areas and support areas. The aboveground portions of the injection rods and surficial foam were removed and placed in a dumpster for disposal as general construction debris. The empty containers of injection material and the boom placed at the culvert pipes during site preparation were removed and taken off site for future reuse by the injection subcontractor. The remaining portion of the injection rods were driven below the ground surface, and, in asphalt areas, they were patched with non-shrink grout or asphalt patch. Surface depressions in grassy areas were filled with crusher run gravel, topsoil, and centipede grass sod. Surface depressions in the jogging path were filled with crusher run gravel. Settlement/erosion areas near the culvert headwalls were filled using rip rap and an underlying layer of non-woven geotextile. Site restoration activities were completed on March 29, 2019.

3.5 WASTE MANAGEMENT

The only wastes generated during the field activities were general municipal waste and construction debris. These were collected in a dumpster and shipped to a local landfill for disposal.

3.6 DEMOBILIZATION

Upon completing the activities described above and the final walkthrough described in Section 5.0, TtEC initiated demobilization activities. Site personnel, temporary facilities, equipment, and excess materials were removed from MCRD Parris Island. Demobilization was completed on March 29 and 30, 2019.

4.0 HEALTH AND SAFETY SUMMARY

Field activities conformed to the requirements and procedures included in the Final Accident Prevention Plan Culvert and Causeway Repairs at Site 3 (TtEC 2019b), submitted by TtEC to the Navy on February 11, 2019. Before beginning work, project personnel participated in orientation training as required by the Final Accident Prevention Plan. This training included a review of the site history and site-specific hazards. Safety meetings were conducted each day that work was performed on site. Applicable activity hazard analyses were reviewed and signed prior to initiating new tasks. During the sinkhole repair activities, TtEC and its subcontractors worked a total of 22 days and 1,463 hours with no recordable, first aid, lost-time, or vehicle incidents.

5.0 QUALITY CONTROL SUMMARY

The field activities were considered one definable feature of work, and the three phases of quality control (preparatory, initial, and follow-up) were utilized during the execution of the work. TtEC completed daily Contractor Production Reports and Contractor Quality Control Reports whenever on-site activities occurred. Copies of the daily reports are included in Attachment 5. At the completion of field activities, a final site walkthrough was conducted with the NAVFAC Construction Manager and the MCRD Parris Island Public Works Officer. No issues were noted during the walkthrough, and demobilization began the same day. Photographs were taken of the site to document progress before, during, and after fieldwork. A select number of photographs have been compiled into a photographic log included in Attachment 6.

6.0 REFERENCES

MCRD (Marine Corps Recruit Depot Parris Island). 2019. Letter to USEPA and SCDHEC. 13 February.

TtEC (Tetra Tech EC, Inc.). 2019a. Draft Letter Work Plan, Sinkhole Repairs, MCRD Parris Island, SC. Technical Memo to Jose Parra. 21 February.

TtEC. 2019b. Final Accident Prevention Plan Culvert and Causeway Repairs at Site 3, Marine Corps Recruit Depot Parris Island, Parris Island South Carolina. February.

Figures

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N

PARRIS ISLAND, SOUTH CAROLINA

SITE LOCATION AND VICINITY MAP

NOT TO SCALE

MCRD PARRIS ISLAND

FIGURE 1

SITE 3

3RD BN POND ROAD

MCRD PARRIS ISLAND

VICINITY MAP

LOCATION MAP

SITE 3

SITE OVERVIEW

NOT TO SCALE

FIGURE 2

SOUTH CULVERT SITE

3RD BN POND ROAD

MCRD PARRIS ISLAND

PARRIS ISLAND, SOUTH CAROLINA

NORTH CULVERT SITE

HORSE ISLAND

W

AK

E

BO

UL

EV

AR

D

RIBBON CREEK

SITE 3

NORTH CULVERT AREA INJECTION PLAN

FIGURE 3

3RD BN POND ROAD

MCRD PARRIS ISLAND

PARRIS ISLAND, SOUTH CAROLINA

SCALE (FEET)

SUPPORT AREA

SITE 3

SUBSURFACE ANOMALIES IDENTIFIED DURING

2019 GEOPHYSICAL SURVEY DESCRIBED IN

MCRD PARRIS ISLAND LETTER TO USEPA AND

SCDHEC DATED FEBRUARY 13, 2019

INJECTION POINTS

LEGEND:

INJECTION TO A 9-FOOT DEPTH

BELOW PAVEMENT SURFACE

INJECTION TO A 6-FOOT DEPTH

BELOW PAVEMENT SURFACE

FLOATING BOOM

FLOATING BOOM

SITE ACCESS

920 POUNDS OF MATERIAL

INJECTED IN THIS AREA

1,280 POUNDS OF MATERIAL

INJECTED IN THIS AREA

2,036 POUNDS OF MATERIAL

INJECTED IN THIS AREA

4,209 POUNDS OF MATERIAL

INJECTED IN THIS AREA

SOUTH CULVERT AREA INJECTION PLAN

SCALE (FEET)

FIGURE 4

3RD BN POND ROAD

MCRD PARRIS ISLAND

PARRIS ISLAND, SOUTH CAROLINA

SUBSURFACE ANOMALIES IDENTIFIED DURING

2019 GEOPHYSICAL SURVEY DESCRIBED IN

MCRD PARRIS ISLAND LETTER TO USEPA AND

SCDHEC DATED FEBRUARY 13, 2019

INJECTION POINTS

LEGEND:

INJECTION TO A 9-FOOT DEPTH

BELOW PAVEMENT SURFACE

INJECTION TO A 6-FOOT DEPTH

BELOW PAVEMENT SURFACE

SUPPORT AREA

SITE 3

FLOATING BOOM

FLOATING BOOM SITE ACCESS

1,886 POUNDS OF MATERIAL

INJECTED IN THIS AREA

2,370 POUNDS OF MATERIAL

INJECTED IN THIS AREA

1,540 POUNDS OF MATERIAL

INJECTED IN THIS AREA

2,931 POUNDS OF MATERIAL

INJECTED IN THIS AREA

Attachment 1

Third-Party Utility Locate Report

Subsurface Investigation to Locate Underground

Utilities Prepared For: Tetra Tech EC, Inc

Prepared By:

Andrew Marques Project Manager-South Carolina

2/28/2019

February 28, 2019

Tetra Tech EC, Inc Attn: Louie McTall Site: 3rd BN Pond Road Parris Island, SC

We appreciate the opportunity to provide this report for our work completed on 2/28/19 at the above address in Parris Island, SC.

PURPOSE

The purpose of this project was to search for underground utilities within the project boundaries provided by the client. Area was to be scanned for any utilities that may interfere with injections to fill voids under asphalt.

EQUIPMENT

• 350 MHz GPR Antenna. The antenna is mounted in a stroller frame which rolls over the surface. The surface needs to be reasonably smooth and unobstructed in order to obtain readable scans. Obstructions such as curbs, landscaping, and vegetation will limit the feasibility of GPR. The data is displayed on a screen and marked in the field in real time. GPR works by sending pulses of energy into a material and recording the strength and the time required for the return of the reflected signal. Reflections are produced when the energy pulses enter into a material with different electrical properties from the material it left. The strength of the reflection is determined by the contrast in signal speed between the two materials. The total depth achieved can be as much as 8’ or more with this antenna but can vary widely depending on the conductivity of the materials. Depths provided should always be treated as estimates as their accuracy can be affected by multiple factors. For more information, please visit: Link

• Electromagnetic Pipe Locator. The EM locator can detect the electromagnetic fields from live power or radio frequency signals. It can also be used in conjunction with a transmitter to connect directly to accessible, metallic pipes, risers, or tracer wires.

A current is sent through the pipe or tracer wire at a specific frequency and the resulting EM field can then be detected by the receiver. The receiver is moved over the surface without coming in contact with the ground so it is not affected by terrain. Depths provided should always be treated as estimates as their accuracy can be affected by multiple factors. Depths achieved can be as much as 20’ depending on the type of signal being traced or methods used. For more information, please visit: Link

PROCESS

Our process began with using the EM pipe locator to locate pipes or utilities throughout the scan area. We first sweep all areas with the receiver to detect live power or radio frequency signals followed by connecting to any visible risers or tracer wires that may be in the area provided that there is an exposed metallic surface. Locations and depths are painted or flagged on the surface. Depths cannot always be provided depending on the location method and can be prone to error.

Initial GPR scans were then collected in order to evaluate the data and calibrate the equipment. Based on these findings, a survey strategy is formed, typically consisting of scanning the entire area in a grid with 5’-10’ scan spacing in order to locate any potential utilities that were not found with the pipe locator. The GPR data is interpreted in real time and anomalies in the data are located and marked on the surface along with their depths using spray paint, pin flags, etc. Depths are dependent on the dielectric of the materials being scanned so depth accuracy can vary throughout a site. Relevant scan examples were saved and will be provided in this report.

https://www.gp-radar.com/GSSI-Antennas-Brochure.html https://www.gp-radar.com/RD-8100-Brochure.html

LIMITATIONS

Please keep in mind that there are limitations to any subsurface investigation. The equipment may not achieve maximum effectiveness due to soil conditions, above ground obstructions, reinforced concrete, and a variety of other factors. No subsurface investigation or equipment can provide a complete image of what lies below. Our results should always be used in conjunction with as many methods as possible including consulting existing plans and drawings, exploratory excavation or potholing, visual inspection of above ground features, and utilization of services such as One Call/811.

At this site, our scans were limited by guard rails, marsh embankment and exposed voids in road.

FINDINGS

We found that the soil allowed for maximum GPR depth penetration of 6’ in most areas. We were able to locate communication lines and one unknown line in first area with the GPR or RD.

The following pages will provide photos and further explanation of our findings.

3rd BN Pond Road

Parris Island, SC

GPR Data Screenshots and Photos

AREA 1

GPR data screenshot of Communication Line 1. Depth was approximately 2’ deep.

GPR data screenshot from Unknown Line. Depth approximately 4’.

Photo of Communication Line 2 markings.

Photo of Unknown Line running just inside of guard rail and slowing going under and appearing at far end of guard rail.

Photo of Communication Line 1 markings.

GPR data screenshot from Communication Line 2. Depth Approximately 2’-2.5’

GPR Data Screenshots and Photos

AREA 1

GPR data screenshot of Communication Line 3. Depth approximately 2.25’ deep.

Photo of Communication Line 3 running in roadway.

GPR Data Screenshots and Photos

AREA 2

GPR data screenshot from Communication Line 2. Depth approximately 1.75’.

Photo of Communication Line 1 markings..

Photo of Communication Line 2.

GPR data screenshot from Communication Line 1. Depth approximately 1.5’.

CLOSING

GPRS, Inc. has been in business for over 16 years, specializing in underground storage tank location, concrete scanning, utility locating, and shallow void detection for projects throughout the United States. I encourage you to visit our website (www.gp-radar.com) and contact any of the numerous references listed.

GPRS appreciates the opportunity to offer our services, and we look forward to continuing to work with you on future projects. Please feel free to contact us for additional information or with any questions you may have regarding this report.

Signed, Andrew Marques Project Manager – South Carolina

Direct: 803-873-1653 andrew.marques@gprsinc.com www.gprsinc.com http://www.gp-radar.com/ mailto:andrew.marques@gprsinc.com http://www.gprsinc.com/

Attachment 2

Injection Point As-Built Survey

Attachment 3

Injection Material Product Data

1 These items are provided as general information only. They are approximate values and are not part of the production specifications.

Page 1 of 2 - Document contains important information and must be read in its entirety.

BaySystems 486Star PUR

Product Information

Polyurethane Foam Grout System

Product Description BaySystems 486Star polyurethanes are a family of two component high density thermoset polyurethane foam systems. They are prepared by mixing the BaySystems 486Star Resin with Mondur MR Isocyanate. The Isocyanate is commonly referred to as the “A” Component, while the Resin is known as the “B” component.

When properly combined in a 1:1 ratio by volume, BaySystems 486Star PUR systems are capable of expanding by up to 25 times their original volume in unconfined spaces.

BaySystems 486Star PUR systems are formulated to obtain various foam densities and with different reactivities for specific project applications. These applications may include:

Slab Jacking and concrete lifting Soil stabilization to increase its load bearing capacity Infrastructure and foundation repairs Void filling Bridge approaches

Unique Properties BaySystems 486Star PURs have a composition that allows for its direct application in wet or very damp regions while still maintaining good physical properties. Because it contains a hydrophobic additive, BaySystems 486Star will react correctly even when being injected directly into water. This property makes it ideal for lifting and stabilizing in areas with elevated soil moisture. Because of the resulting foam’s hydrophobic nature, the BaySystems 486Star PURs will resist erosion and weakening from water.

The low viscosity of the BaySystems 486Star components lets it penetrate into the soil easily.

As it expands, it compacts loose soil and displaces water without detrimental dilution to the resin or loss of physical properties in the cured polyurethane.

Properties of Components1

Property Mondur MR

Isocyanate

BaySystems

486Star Resin

Appearance Dark Brown Liquid

Amber Liquid

NCO, Wt. % 31.5 -- Viscosity** at 25°C, mPas

200 Varies by grade Specific Gravity at 25°C 1.24 1.01 – 1.04 Flash Point, PMCC, °C 199 >93

Storage and Handling BaySystems 486Star components should be stored in tightly sealed containers out of direct sunlight.

The Mondur MR is sensitive to moisture, and can react with water to form solids and carbon dioxide gas, which may cause sealed containers to expand and rupture. It should be stored between 50° and 86°F.

BaySystems 486Star Resins may phase separate if stored at temperatures below 50°F for prolong periods. If separation occurs, the material must be warmed and thoroughly mixed prior to use.

Page 2 of 2 - Document contains important information and must be read in its entirety.

Typical Foam Physical Properties of Baysystems 486 PUR2

2Typical properties generated under controlled laboratory conditions. These properties may vary, depending on environmental conditions including atmospheric pressure (altitude) and other factors.

Health and Safety Information Appropriate literature has been assembled which provides information concerning the health and safety precautions that must be observed when handling this product. Before working with this product, you must read and become familiar with the available information on its risks, proper use, and handling. This cannot be overemphasized. Information is available in several forms, e.g., safety data sheets and product labels. For further information contact your Covestro LLC representative or the Product Safety and Regulatory Affairs Department in Pittsburgh, PA.

The manner in which you use and the purpose to which you put and utilize our products, technical assistance and information (whether verbal, written or by way of production evaluations), including any suggested formulations and recommendations, are beyond our control. Therefore, it is imperative that you test our products, technical assistance and information to determine to your own satisfaction whether our products, technical assistance and information are suitable for your intended uses and applications. This application-specific analysis must at least include testing to determine suitability from a technical as well as health, safety, and environmental standpoint. Such testing has not necessarily been done by us. Unless we otherwise agree in writing, all products are sold strictly pursuant to the terms of our standard conditions of sale which are available upon request. All information and technical assistance is given without warranty or guarantee and is subject to change without notice. It is expressly understood and agreed that you assume and hereby expressly release us from all liability, in tort, contract or otherwise, incurred in connection with the use of our products, technical assistance, and information. Any statement or recommendation not contained herein is unauthorized and shall not bind us. Nothing herein shall be construed as a recommendation to use any product in conflict with any claim of any patent relative to any material or its use. No license is implied or in fact granted under the claims of any patent.

This product is not designated as “Medical Grade” and therefore shall not be considered a candidate for the manufacture of a medical device or of intermediate products for medical devices, which are intended under normal use to be brought into direct contact with the patient's body (e.g., skin, body fluids or tissues, including indirect contact to blood). If the intended use of the product is for the manufacture of a medical device or of intermediate products for medical devices, Covestro LLC must be contacted in advance, in writing, to provide its agreement to sell such product for such purpose. Nonetheless, any determination as to whether a product is appropriate for use in a medical device or intermediate products for medical devices must be made solely by the purchaser of the product without relying upon any representations by Covestro LLC. For further information, please see the "Guidance on Use of Covestro Products in a Medical Application" document which can be located at www.productsafetyfirst.covestro.com

Note: The information contained in this bulletin is current as of March, 2017. Please contact Covestro LLC to determine whether this publication has been revised.

Covestro LLC

1 Covestro Circle Pittsburgh, PA 15205 Phone: 1-844-646-0545 www.covestro.com

Physical Property Test Method 684EXP 486STAR-3# 486STAR-4#BD 486STAR-4# 486STAR-4#GD 486STAR-6# 486STAR-8#

Apparent Density, min ASTM D 1622 2 lbs/ft

3 lbs/ft

4 lbs/ft

4 lbs/ft

4 lbs/ft

6 lbs/ft

8 lbs/ft

Compressive Strength ASTM D 1621 20 psi 30 psi 60 psi 60 psi 60 psi 100 psi 175 psi

Compressive Modulus ASTM D 1621 500 psi 1000 psi 2000 psi 2000 psi 2000 psi 3000 psi 4000 psi

Dimensional Stability ASTM D 2126

< 2% < 2% < 2% < 2% < 2% < 1% < 1%

< 15% < 2% < 2% < 2% < 2% < 1% < 1%

Flexural Strength ASTM D 790 30 psi 50 psi 90 psi 90 psi 90 psi 170 psi 280 psi

Flexural Modulus ASTM D 790 700 psi 950 psi 2000 psi 2000 psi 2000 psi 4000 psi 7000 psi

Shear Strength ASTM C 273 30 psi 35 psi 45 psi 45 psi 45 psi 70 psi 100 psi

Shear Modulus ASTM C 273 350 psi 500 psi 900 psi 900 psi 900 psi 1100 psi 1400 psi

Tensile Strength ASTM D 1623 50 psi 60 psi 90 psi 90 psi 90 psi 120 psi 150 psi

Tensile Modulus ASTM D 1623 700 psi 1700 psi 2000 psi 2000 psi 2000 psi 3000 psi 4000 psi

%Water Absorption ASTM D 2842 < 2% < 2% < 2% < 2% < 2% < 2% < 2%

Closed Cell Content ASTM D 6226 90% 90% 90% 90% 90% 90% 90%

Volume Change @ -40°F

Volume Change @ +200°F http://www.productsafetyfirst.covestro.com/

Attachment 4

Injection Quantity Tables

Structural Polyurethane Resin Injection Quantities

North Culvert Area

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

13 3 1 103 3 15 118 3 6 13 6 1 103 6 14 118 6 46 14 3 1 104 3 11 118 9 1 14 6 13 104 6 12 119 3 1 15 3 1 105 3 9 119 6 18 15 6 103 105 6 16 119 9 1 16 3 1 106 3 2 120 3 6 16 6 121 106 6 2 120 6 13 17 3 1 107 3 1 120 9 1 17 6 65 107 6 29 121 3 4 18 3 0 107 9 119 121 6 49 18 6 32 108 3 8 121 9 37 19 3 1 108 6 10 122 3 23 19 6 20 108 9 16 122 6 21 20 3 1 109 3 34 122 9 44 20 6 1 109 6 117 123 3 4 21 3 1 109 9 29 123 6 17 21 6 8 110 3 2 123 9 67 22 3 1 110 6 17 124 3 60 22 6 15 110 9 1 124 6 20 23 3 1 111 3 9 124 9 120 23 6 4 111 6 6 125 3 16 24 3 1 111 9 1 125 6 121 24 6 4 112 3 5 125 9 63 25 3 1 112 6 88 126 3 3 25 6 4 112 9 14 126 6 60 26 3 1 113 3 6 127 3 1 26 6 10 113 6 53 127 6 41 27 3 1 113 9 23 128 3 9 27 6 6 114 3 7 128 6 1 28 3 1 114 6 72 129 3 3 28 6 10 114 9 20 129 6 23 29 3 1 115 3 7 130 3 5 29 6 11 115 6 121 130 6 15 100 3 7 115 9 1 131 3 1 100 6 33 116 3 3 131 6 2 101 3 4 116 6 18 132 3 1 101 6 36 116 9 2 132 6 15 102 3 8 117 3 7 133 3 1 102 6 14 117 6 25 133 6 26

117 9 139

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 1 of 5

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

134 3 1 150 3 3 165 3 0 134 6 7 150 6 7 165 6 1 135 3 1 150 9 32 166 3 2 135 6 8 151 3 1 166 6 17 136 3 1 151 6 14 167 3 2 136 6 23 151 9 69 167 6 1 137 3 2 153 3 4 168 3 1 137 6 10 153 6 14 168 6 9 138 3 1 153 9 65 169 3 4 138 6 8 154 3 3 169 6 5 139 3 1 154 6 16 170 3 2 139 6 13 154 9 0 170 6 13 140 3 1 155 3 3 172 3 1 140 6 42 155 6 35 172 6 13 141 3 3 155 9 18 173 3 1 141 6 1 156 3 8 173 6 13 142 3 50 156 6 8 174 3 1 142 6 1 156 9 29 174 6 7 142 9 37 157 3 44 175 3 1 143 3 4 157 6 121 175 6 15 143 6 31 157 9 26 176 3 1 143 9 67 158 3 8 176 6 14 144 3 5 158 6 39 177 3 1 144 6 14 158 9 10 177 6 9 144 9 45 159 3 16 178 3 1 145 3 5 159 6 17 178 6 38 145 6 2 159 9 1 179 3 1 145 9 22 160 3 6 179 6 4 146 3 6 160 6 73 180 3 1 146 6 2 160 9 1 180 6 11 146 9 8 161 3 53 180 9 35 147 3 121 161 6 119 181 3 1 147 6 8 161 9 7 181 6 13 147 9 1 162 3 1 181 9 79 148 3 2 162 6 121 182 3 1 148 6 10 162 9 24 182 6 4 148 9 31 163 3 2 182 9 1 149 3 4 163 6 1 183 3 1 149 6 9 164 3 2 183 6 14 149 9 20 164 6 9 183 9 8

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 2 of 5

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

184 3 2 198 3 1 216 3 0 184 6 4 198 6 3 216 6 11 184 9 5 198 9 1 217 3 1 185 3 11 199 3 1 217 6 4 185 6 7 199 6 50 218 3 1 185 9 2 199 9 2 218 6 16 186 3 1 200 3 1 219 3 1 186 6 16 200 6 7 219 6 2 186 9 9 200 9 28 220 3 1 187 3 1 201 3 1 220 6 1 187 6 15 201 6 9 221 3 1 187 9 5 202 3 1 221 6 2 188 3 1 202 6 11 222 3 1 188 6 5 203 3 1 222 6 6 188 9 118 203 6 20 223 3 1 189 3 1 204 3 1 223 6 6 189 6 5 204 6 33 224 3 1 189 9 124 205 3 1 224 6 4 190 3 1 205 6 24 225 3 1 190 6 3 206 3 1 225 6 5 190 9 1 206 6 9 226 3 1 192 3 1 207 3 2 226 6 3 192 6 11 207 6 41 227 3 1 192 9 29 208 3 1 227 6 4 193 3 1 208 6 48 228 3 1 193 6 2 209 3 1 228 6 6 193 9 1 209 6 15 229 3 0 194 3 1 210 3 1 229 6 5 194 6 7 210 6 27 230 3 0 194 9 1 211 3 1 230 6 119 195 3 1 211 6 1 231 3 1 195 6 1 212 3 1 231 6 14 195 9 1 212 6 7 232 3 0 196 3 1 213 3 1 232 6 15 196 6 10 213 6 7 233 3 1 196 9 1 214 3 1 233 6 122 197 3 1 214 6 16 234 3 1 197 6 118 215 3 1 234 6 20 197 9 7 215 6 57 235 3 1

235 6 12

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 3 of 5

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

236 3 1 256 3 1 276 3 1 236 6 39 256 6 5 276 6 26 237 3 1 257 3 1 277 3 0 237 6 8 257 6 2 277 6 2 238 3 1 258 3 1 278 3 1 238 6 14 258 6 54 278 6 17 239 3 1 259 3 1 279 3 1 239 6 12 259 6 14 279 6 13 240 3 1 260 3 1 280 3 1 240 6 6 260 6 40 280 6 18 241 3 1 261 3 1 281 3 1 241 6 13 261 6 12 281 6 22 242 3 1 262 3 1 282 3 1 242 6 11 262 6 18 282 6 3 243 3 1 263 3 1 283 3 1 243 6 11 263 6 24 283 6 5 244 3 1 264 3 5 284 3 1 244 6 14 264 6 16 284 6 10 245 3 1 265 3 1 285 3 1 245 6 11 265 6 13 285 6 4 246 3 1 266 3 1 286 3 1 246 6 6 266 6 12 286 6 1 247 3 1 267 3 1 287 3 0 247 6 16 267 6 10 287 6 32 248 3 1 268 3 2 288 3 1 248 6 1 268 6 7 288 6 59 249 3 0 269 3 56 289 3 3 249 6 15 269 6 11 289 6 21 250 3 1 270 3 1 290 3 2 250 6 7 270 6 27 290 6 5 251 3 1 271 3 1 291 3 1 251 6 3 271 6 1 291 6 39 252 3 1 272 3 2 292 3 1 252 6 1 272 6 1 292 6 18 253 3 0 273 3 1 293 3 5 253 6 20 273 6 5 293 6 1 254 3 1 274 3 1 294 3 1 254 6 1 274 6 1 294 6 31 255 3 1 275 3 1 295 3 3 255 6 4 275 6 40 295 6 41

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 4 of 5

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

296 3 6 310 3 14 324 3 4 296 6 25 310 6 17 324 6 15 297 3 1 311 3 12 325 3 2 297 6 2 311 6 23 325 6 8 298 3 1 312 3 11 326 3 34 298 6 20 312 6 16 326 6 11 299 3 3 313 3 10 327 3 5 299 6 20 313 6 79 327 6 6 300 3 5 314 3 15 328 3 19 300 6 1 314 6 18 328 6 6 301 3 2 315 3 7 329 3 50 301 6 11 315 6 20 329 6 6 302 3 14 316 3 6 330 3 12 302 6 31 316 6 12 330 6 8 303 3 18 317 3 27 331 3 3 303 6 22 317 6 19 331 6 8 304 3 6 318 3 11 332 3 14 304 6 6 318 6 9 332 6 6 305 3 4 319 3 14 333 3 3 305 6 4 319 6 6 333 6 8 306 3 24 320 3 33 334 3 14 306 6 5 320 6 18 334 6 40 307 3 18 321 3 2 335 3 10 307 6 121 321 6 9 335 6 5 308 3 8 322 3 4 336 3 11 308 6 34 322 6 26 336 6 1 309 3 2 323 3 30 336 9 120 309 6 44 323 6 120 337 3 8

337 6 16

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 5 of 5

South Culvert Area

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

400 3 1 420 3 2 440 3 1 400 6 26 420 6 12 440 6 25 401 3 3 421 3 2 441 3 1 401 6 15 421 6 21 441 6 115 402 3 1 422 3 1 442 3 8 402 6 13 422 6 1 442 6 82 403 3 1 423 3 2 443 3 1 403 6 22 423 6 37 443 6 25 404 3 1 424 3 1 444 3 1 404 6 17 424 6 8 444 6 48 405 3 1 425 3 1 445 3 1 405 6 12 425 6 120 445 6 18 406 3 8 426 3 1 446 3 1 406 6 21 426 6 27 446 6 13 407 3 1 427 3 1 447 3 1 407 6 15 427 6 10 447 6 19 408 3 1 428 3 1 448 3 1 408 6 19 428 6 9 448 6 15 409 3 1 429 3 1 449 3 1 409 6 11 429 6 9 449 6 52 410 3 4 430 3 1 450 3 1 410 6 19 430 6 1 450 6 27 411 3 2 431 3 2 451 3 2 411 6 1 431 6 11 451 6 14 412 3 17 432 3 1 452 3 1 412 6 1 432 6 19 452 6 4 413 3 2 433 3 1 453 3 3 413 6 14 433 6 14 453 6 33 414 3 10 434 3 17 454 3 2 414 6 13 434 6 4 454 6 31 415 3 10 435 3 7 455 3 1 415 6 23 435 6 34 455 6 60 416 3 1 436 3 1 456 3 2 416 6 1 436 6 58 456 6 6 417 3 1 437 3 1 457 3 29 417 6 34 437 6 38 457 6 8 418 3 6 438 3 1 458 3 2 418 6 1 438 6 30 458 6 116 419 3 2 439 3 1 459 3 1 419 6 3 439 6 42 459 6 11

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 1 of 5

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

460 3 1 480 3 9 500 3 1 460 6 39 480 6 5 500 6 17 461 3 1 481 3 1 501 3 7 461 6 6 481 6 9 501 6 18 462 3 1 482 3 5 502 3 8 462 6 13 482 6 11 502 6 17 463 3 1 483 3 1 503 3 23 463 6 15 483 6 2 503 6 6 464 3 1 484 3 2 504 3 9 464 6 28 484 6 73 504 6 21 465 3 1 485 3 9 505 3 13 465 6 38 485 6 54 505 6 3 466 3 1 486 3 8 506 3 5 466 6 18 486 6 4 506 6 12 467 3 2 487 3 14 507 3 7 467 6 21 487 6 3 507 6 2 468 3 1 488 3 7 508 3 9 468 6 4 488 6 17 508 6 20 469 3 1 489 3 13 509 3 6 469 6 1 489 6 121 509 6 21 470 3 1 490 3 11 510 3 7 470 6 13 490 6 1 510 6 8 471 3 1 491 3 6 511 3 6 471 6 2 491 6 122 511 6 37 472 3 2 492 3 8 512 3 7 472 6 11 492 6 18 512 6 23 473 3 1 493 3 8 513 3 3 473 6 1 493 6 122 513 6 24 474 3 2 494 3 1 514 3 5 474 6 19 494 6 14 514 6 12 475 3 1 495 3 10 515 3 2 475 6 1 495 6 1 515 6 1 476 3 11 496 3 13 516 3 5 476 6 19 496 6 2 516 6 22 477 3 10 497 3 8 517 3 6 477 6 13 497 6 2 517 6 10 478 3 8 498 3 14 518 3 7 478 6 54 498 6 1 518 6 6 479 3 1 499 3 8 519 3 1 479 6 30 499 6 15 519 6 20

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 2 of 5

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

520 3 2 538 3 1 556 3 1 520 6 3 538 6 5 556 6 1 521 3 1 538 9 1 556 9 1 521 6 23 539 3 1 557 3 1 522 3 3 539 6 17 557 6 6 522 6 24 539 9 1 557 9 1 523 3 1 540 3 1 558 3 1 523 6 1 540 6 17 558 6 1 524 3 30 541 3 1 558 9 3 524 6 11 541 6 11 559 3 10 525 3 12 542 3 1 559 6 4 525 6 4 542 6 7 560 3 18 526 3 17 543 3 1 560 6 5 526 6 2 543 6 11 561 3 1 527 3 17 544 3 1 561 6 6 527 6 21 544 6 10 562 3 1 528 3 4 545 3 1 562 6 2 528 6 6 545 6 14 563 3 18 529 3 4 546 3 1 563 6 4 529 6 2 546 6 7 564 3 2 530 3 4 547 3 1 564 6 1 530 6 2 547 6 17 565 3 6 531 3 1 548 3 21 565 6 20 531 6 22 548 6 18 566 3 1 532 3 1 549 3 12 566 6 17 532 6 17 549 6 12 567 3 1 533 3 2 550 3 19 567 6 12 533 6 14 550 6 12 567 9 5 533 9 1 551 3 18 568 3 2 534 3 1 551 6 6 568 6 108 534 6 14 552 3 1 568 9 3 534 9 8 552 6 7 569 3 1 535 3 1 552 9 1 569 6 1 535 6 1 553 3 2 569 9 2 535 9 2 553 6 5 570 3 2 536 3 1 553 9 1 570 6 7 536 6 6 554 3 1 570 9 13 536 9 1 554 6 5 571 3 1 537 3 1 554 9 1 571 6 46 537 6 4 555 3 1 571 9 1 537 9 1 555 6 6

555 9 1

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 3 of 5

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

572 3 1 589 3 1 605 3 62 572 6 10 589 6 13 605 6 125 572 9 11 589 9 6 605 9 17 573 3 2 590 3 127 606 3 23 573 6 6 590 6 2 606 6 18 573 9 37 590 9 1 606 9 4 574 3 1 591 3 62 607 3 2 574 6 6 591 6 26 607 6 15 575 3 1 591 9 1 607 9 11 575 6 7 592 3 2 608 3 1 576 3 1 592 6 9 608 6 4 576 6 3 592 9 2 609 3 1 577 3 2 593 3 1 609 6 11 577 6 6 593 6 3 610 3 19 578 3 1 594 3 3 610 6 15 578 6 1 594 6 2 611 3 1 579 3 1 595 3 7 611 6 4 579 6 7 595 6 5 612 3 1 580 3 1 596 3 1 612 6 7 580 6 13 596 6 6 613 3 2 581 3 6 597 3 2 613 6 24 581 6 1 597 6 7 614 3 29 582 3 1 598 3 2 614 6 121 582 6 16 598 6 16 615 3 24 583 3 1 599 3 12 615 6 14 583 6 10 599 6 15 616 3 2 584 3 10 600 3 1 616 6 3 584 6 1 600 6 22 617 3 23 585 3 12 601 3 2 617 6 28 585 6 20 601 6 25 618 3 2 586 3 1 601 9 9 618 6 39 586 6 7 602 3 33 619 3 37 586 9 8 602 6 1 619 6 53 587 3 9 602 9 3 620 3 28 587 6 52 603 3 122 620 6 3 587 9 1 603 6 118 620 9 22 588 3 3 603 9 4 621 3 6 588 6 48 604 3 2 621 6 28 588 9 1 604 6 41 621 9 4

604 9 18

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 4 of 5

Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds) Point ID*

Injection

Depth

(feet)

Injection

Quantity

(pounds)

622 3 19 636 3 121 622 6 34 636 6 118 622 9 8 636 9 1 623 3 19 637 3 50 623 6 33 637 6 73 623 9 12 637 9 2 624 3 12 638 3 31 624 6 126 638 6 1 624 9 1 638 9 1 625 3 8 639 3 48 625 6 26 639 6 4 625 9 17 639 9 2 626 3 14 640 3 77 626 6 29 640 6 117 626 9 4 640 9 122 627 3 22 641 3 17 627 6 11 641 6 15 628 3 29 641 9 1 628 6 16 642 3 66 629 3 19 642 6 44 629 6 51 643 3 50 630 3 17 643 6 1 630 6 10 644 3 65 631 3 37 644 6 16 631 6 108 645 3 4 632 3 23 645 6 122 632 6 8 646 3 36 633 3 58 646 6 121 633 6 120 647 3 12 634 3 112 647 6 62 634 6 1 635 3 93 635 6 33 635 9 118

* Point IDs are shown on the as-built survey drawings included in Attachment 2. 5 of 5

Attachment 5

Contractor Production Reports and Contractor Quality Control Reports

Date:

3/5/2019 Contract No. Title & Location: Report No.

Work Performed Today Work Location & Description Employer Number Trade Hours

TtEC 2 Management 20 UMA 6 Injection Sub 49.5

Yes: X No:

Yes:

No: X

Yes:

No: X

Yes:

No: X

03/05/19 Date

Contractor: Superintendent:

TETRA TECH EC, INC.

Page 1 of 2CONTRACTOR PRODUCTION REPORT

Culvert and Causeway Repairs at Site 3 MCRD Parris Island, SCN62470-13-D-8007

Tetra Tech EC, Inc. Richard Claydon AM Weather: PM Weather:

Low: 42 Rain 0.25" wind NW 13 mph High: 53 Fair wind W 18 mph

List safety actions taken today/safety inspections conducted:

Mobilized equipment to the site, conducted site orientation for all staff. Completed the injection layout grids at the north and south culvert locations. Began drilling through the asphalt for the injection rods at the north culvert location. Prepared the injection rods and installed sacrificial tips.

Was a job safety meeting held this date?

(If yes, attach a copy of meeting minutes.)

Total work hours on site this date: 69.5

Were there any lost time accidents this date?

(If yes, attach a copy of completed OSHA report.) Cumulative work hours from previous report: 0.0Was trenching/scaffolding/HV electrical/high work done this date?

(If yes, attach statement or checklist showing inspection performed.)

Was hazardous material/waste released to the environment? Cumulative work hours since start of work: 69.5(If yes, attach description of incident and proposed action.)

Conducted site orientation with field crew which included review of APP and AHA for Mobilization and Site Setup

Remarks:

Will need to secure portable toilets with rebar pegs planned for 3-6-19

Contractor Superintendent

Page 2 of 2 3/5/2019

Contract No. Title & Location: Report No.

N62470-13-D-8007 1

Dodge 2500 Barco 1155689 3/5/2019 10 12/31/19 Nissan SUV 10 Dumpster 10 Portable Toilet x2 10

Materials one bundle of 5/8" diameter injection rods UMA 1163447 4/30/2019 One tank of BaySystems 486 Star resin UMA 1163447 250 G 250 G 4/30/2019 One tank of Mondur MR Light isocyanate UMA 1163447 250 G 205 G 4/30/2019

03/05/19 Date

CONTRACTOR PRODUCTION REPORT

Culvert and Causeway Repairs at Site 3 MCRD Parris Island, SC

Rental Equipment Vendor PO/MOA# Charge # Start Date Rate Daily Hrs

Contractor Superintendent

P.O.P.

Expires

Vendor PO # Charge # QTY REC'D ACCUM QTY P O QTY P.O.P.

Expires

JM02 QCR 001 3-5-19 Page 1 of 1

REPORT NO:

PROJECT:

PROJECT NO:

SUBCONTRACTOR:

LOWER TIER SUB:

DATE:

TASK:

LOCATION

NAME: Louie McTall

SIGNATURE: DATE: 3-5-19

TETRA TECH EC, INC 001

NAVFAC LANT RAC VI

REMEDIAL ACTION CONTRACT (RACVI) JM02 Culvert and Causeway Repairs

Deficiencies Noted with Proposed or Implemented Corrective Action:

No deficiencies noted or corrective actions implemented.

CONTRACT NO. N62470-13-D-8007 UMA

N/A

CONTRACTOR QUALITY CONTROL

REPORT

5-Mar-2019 Injection Field Activities

Site 3 SEE CONTRACTOR DAILY PRODUCTION SUMMARY REPORT FOR INFORMATION ON SAFETY, WEATHER, SUBCONTRACTOR HOURS AND AREAS OF RESPONSIBILITY.

SUMMARY OF CONSTRUCTION PROGRESS AND QUALITY CONTROL ACTIVITIES PERFORMED:

Mobilize to site and begin site setup activities. Receive portable toilets and dumpster. Layout injection grid at both the north and south culvert areas per Letter Work Plan figures. Cut injection rods and install couplings on injections rods to achieve proper lengths. Install sacrificial tips on injection rods. Begin drilling through asphalt at injection points in the north culvert area so rods can be driven into underlying soil.

Tests Performed and Results:

No testing performed today.

Materials Received:

UMA mobilized two trailers to the site which contained various tools and consumable materials, one bundle of 5/8" diameter injection rods, and two internal tanks of injections materials. One tank (approx 250 gallons) of BaySystems 486 Star resin and one tank (approx 250 gallons) of Mondur MR Light isocyanate.

JOB SAFETY: (LIST OBSERVATIONS)

Conducted site orientation with field crew which included review of APP and AHA for Mobilization and Site Setup.

COMMENTS: ADDRESS ANY CHANGES (FCR/DCN), MEETING RESULTS OR OTHER INFORMATION

None.

Contractor's Verification: On behalf of the Contractor, I certify this report is complete and correct, and all materials used and work performed during this reporting period are in compliance with the contract plans and specifications to the best of my knowledge, except as may be noted above.

TITLE/COMPANY: PQCM / Tetra Tech EC

3/6/2019 Contract No. Title & Location: Report No.

Work Performed Today Work Location & Description Employer Number Trade Hours

TtEC 2 Management 20 UMA 6 Injection Sub 53

Yes: X No:

Yes:

No: X

Yes:

No: X

Yes:

No: X

03/06/19 Date

Safety briefing Working near water

Remarks:

Secure portable toilets with rebar pegs completed 3-6-19. Col Traux visited the site asked about the injection process and ensured that adequate sanitation was available.

Contractor Superintendent

List safety actions taken today/safety inspections conducted:

Continued drilling through the asphalt for the injection rods at the north culvert location. Prepared the injection rods and installed sacrificial tips.

Was a job safety meeting held this date?

(If yes, attach a copy of meeting minutes.)

Total work hours on site this date: 73.0

Were there any lost time accidents this date?

(If yes, attach a copy of completed OSHA report.) Cumulative work hours from previous report: 69.5Was trenching/scaffolding/HV electrical/high work done this date?

(If yes, attach statement or checklist showing inspection performed.)

Was hazardous material/waste released to the environment? Cumulative work hours since start of work: 142.5(If yes, attach description of incident and proposed action.)

Tetra Tech EC, Inc. Richard Claydon AM Weather: PM Weather:

Low: 33 Fair wind NNW 13 mph High: 51 Fair Calm

Contractor: Superintendent:

TETRA TECH EC, INC.

Page 1 of 2CONTRACTOR PRODUCTION REPORT

Culvert and Causeway Repairs at Site 3 MCRD Parris Island, SCN62470-13-D-8007

3/6/2019

Contract No. Title & Location: Report No.

N62470-13-D-8007 2

Dodge 2500 Barco 1155689 3/5/2019 10 12/31/19 Nissan SUV 3/5/2019 10 Dumpster 3/5/2019 10 Portable Toilet x2 3/5/2019 10 Hand wash station 3/6/2019 10

Materials

One bundle of 5/8" diameter injection rods UMA 1163447 4/30/2019 One tank of BaySystems 486 Star resin UMA 1163447 250 G 250 G 4/30/2019 One tank of Mondur MR Light isocyanate UMA 1163447 250 G 205 G 4/30/2019 BaySystems 486 UMA 1163447 6648 lbs. 6648 lbs. 4/30/2019 Mondur MR Light isocyanate UMA 1163447 8268 lbs. 8,268 lbs. 4/30/2019

03/06/19 DateContractor Superintendent

P.O.P.

Expires

Vendor PO # Charge # QTY REC'D ACCUM QTY P O QTY P.O.P.

Expires

CONTRACTOR PRODUCTION REPORT

Culvert and Causeway Repairs at Site 3 MCRD Parris Island, SC

Rental Equipment Vendor PO/MOA# Charge # Start Date Rate Daily Hrs

JM02 QCR 002 3-6-19 Page 1 of 1

PROJECT:

PROJECT NO:

SUBCONTRACTOR:

LOWER TIER SUB:

DATE:

TASK:

LOCATION

NAME: Louie McTall

SIGNATURE: DATE: 3-6-19

JOB SAFETY: (LIST OBSERVATIONS)

Reviewed requirements for working near water at morning safety meeting. Ensured proper unloading and staging of injection material.

COMMENTS: ADDRESS ANY CHANGES (FCR/DCN), MEETING RESULTS OR OTHER INFORMATION

None.

Contractor's Verification: On behalf of the Contractor, I certify this report is complete and correct, and all materials used and work performed during this reporting period are in compliance with the contract plans and specifications to the best of my knowledge, except as may be noted above.

TITLE/COMPANY: PQCM / Tetra Tech EC

Deficiencies Noted with Proposed or Implemented Corrective Action:

No deficiencies noted or corrective actions implemented.

CONTRACT NO. N62470-13-D-8007 UMA

N/A

CONTRACTOR QUALITY CONTROL

REPORT

6-Mar-2019 Injection Field Activities

Site 3 SEE CONTRACTOR DAILY PRODUCTION SUMMARY REPORT FOR INFORMATION ON SAFETY, WEATHER, SUBCONTRACTOR HOURS AND AREAS OF RESPONSIBILITY.

SUMMARY OF CONSTRUCTION PROGRESS AND QUALITY CONTROL ACTIVITIES PERFORMED:

Continue site setup activities. Receive portable handwash station. Continue to cut injection rods and install couplings on injections rods to achieve proper lengths. Continue drilling through asphalt at injection points in the north culvert area so rods can be driven into underlying soil. Hand dig to locate underground utilities in the north culvert area.

Conduct preparatory meeting for injection activities with UMA superintendent and Tetra Tech site management.

Receive delivery of injection materials. Materials staged in a poly-lined, bermed, and covered area at the northwest end of the causeway.

Tests Performed and Results:

No testing performed today.

Materials Received:

UMA recieved delivery of injections materials. A total of 6,648 pounds (3 totes) of BaySystems 486 Star resin and 8,268 pounds (3 totes) of Mondur MR Light isocyanate were received today.

TETRA TECH EC, INC 002

NAVFAC LANT RAC VI

REMEDIAL ACTION CONTRACT (RACVI) JM02 Culvert and Causeway Repairs

3/7/2019 Contract No. Title & Location: Report No.

Work Performed Today Work Location & Description Employer Number Trade Hours

TtEC 2 Management 20 UMA 5 Injection Sub 47.5

Yes: X No:

Yes:

No: X

Yes:

No: X

Yes:

No: X

03/07/19 Date

Contractor: Superintendent:

TETRA TECH EC, INC.

Page 1 of 2CONTRACTOR PRODUCTION REPORT

Culvert and Causeway Repairs at Site 3 MCRD Parris Island, SCN62470-13-D-8007

Tetra Tech EC, Inc. Richard Claydon AM Weather: PM Weather:

Low: 35 Fair wind S 7 mph High: 57 Fair S 12 MPH

List safety actions taken today/safety inspections conducted:

Continued drilling through the asphalt for the injection rods at the north and south culvert locations. Prepared the injection rods and installed sacrificial tips. Began installing injection rods at the north culvert location. Installed floating boom at the south culvert location and to the west of the north culvert location.

Was a job safety meeting held this date?

(If yes, attach a copy of meeting minutes.)

Total work hours on site this date: 67.5

Were there any lost time accidents this date?

(If yes, attach a copy of completed OSHA report.) Cumulative work hours from previous report: 142.5Was trenching/scaffolding/HV electrical/high work done this date?

(If yes, attach statement or checklist showing inspection performed.)

Was hazardous material/waste released to the environment? Cumulative work hours since start of work: 210.0(If yes, attach description of incident and proposed action.)

Injection AHA reviewed

Remarks:

Driving the injection rods in the roadway areas has proved difficult with the electric hammer drill. UMA will mobilize a pneumatic hammer to drive the injection rods on Monday. As all the injections rods in the same location (at 3,' 6' and 9') need to be installed before the foam injection can be started, this will push the start of the foam injection to…