This document summarizes the process for excavating and transporting heavily oil contaminated soil from Kuwait to a landfill. It involves several steps: delineating contaminated areas using satellite imagery and field verification; conducting surveys to identify underground utilities and unexploded ordnances; taking soil samples for analysis; establishing boundaries and depth of contamination; calculating soil volumes using software to create elevation grids; excavating and loading the soil; transporting by truck with weight and barcode screening; and disposing of the soil at the landfill. The contaminated soil volume is calculated using the trapezoidal rule based on upper and lower elevation grids clipped to the excavation boundaries.

1. EXCAVATION & TRANSPORTATION OF HEAVILY OIL
CONTAMINATED SOIL TO LANDFILL IN NORTH KUWAIT
AREA
Alghanim International
Fouad Alghanim & Sons Group Of Companies
Salah Bakry
Lead GIS Specialist
Project Activities Summery
and Contaminated Soil
Volume Calculation Methods

2. Excavation and Transportation of Heavily Oil Contaminated Soil to Landfill in North Kuwait Area
Overall Project Process Chart
UXO
BAC
Temporary Facility &
Gatch roads
Anomaly Avoidance
(FEIA, SSC, GT, TS)
Mechanical Excavation,
Sifting & Screening
(CSP)
UXO Geophysical Survey
(DOL, WOL, New Asphalt Rd,
Tarcrete, Access Gatch Rd, Coastal
Trench-Remediation areas)
Landmine Clearance
(Mechanical Demining)
(Coastal Trench – Minefield
Access Areas
Coastal Oil Deposits)
Ground Proofing (Mechanical
Technical Survey)
(Coastal Trench – Trench line & Oil
Spill Work areas)
Delineation of present boundary of
contaminated areas
Site Ground-Truthing
Satellite Image analysis & Field
Verification
Manual Slit Trenching
(1.0 m W * 1.5 m D)
Above & Underground utilities
GroundTruthing/Pre
-condition Survey
Total area of contaminated feature Depth of contaminated soil
Volume of Contaminated Soil
UXO
Removal of
Scrap
(From area to be
excavated)
Excavation & Transportation
Disposal of
Scrap
(Collect &
dispose)
Trial Pit
Excavation
(1m w * 1.5m L
* 2.5m D)
(Understand the
contamination
profile in the
field)
Field Density Testing
Density of soil for different
features (Kg/m3
)
Excavation & Loading
(Excavate the contaminated
soil)
(To mixing area –
WOL, WHP)
(To Landfill area)
Transportation Weighbridge /
Barcode Screening
Weighbridge /
Barcode Screening
Compaction & Testing
(90-95% of the maximum density of
the modified proctor)
Compliance Monitoring
(TPH < 5000 mg/Kg
Restoration / Backfilling
Weight of Soil
(Ton)
Volume of Soil (m3
)
Features
Oil Lakes (Dry & Wet)
Contaminated Soil Piles
Tarcrete
Coastal trench
Coastal Oil Deposits
Wellhead Pits
FEIA
QRA
PHSER # 3
PHSER # 4
PHSER # 5
HSE Studies Topographic Survey
Topo survey
Ground Elevation, Road/Pipe
crossings, existing utilities/facilities,
vegetation
Pre-Site Soil Characterisation
Sample collection & Analysis
Sample collection, analysis & soil
logging & analysis – Profile of
contamination, Thickness of
contamination layers, and depth of
contamination
Field Density Testing

3. Estimate soil volume before excavation
- Prepare Data to use it for volume Estimation
Excavation Zones
Boundary
Topographic
Surface Level
Contaminated Soil
Depth

4. Excavation Zones
Boundary
Topographic
Surface Level
Contaminated Soil
Depth
Software
- ArcGIS 10.1
Submission
- Report
- Shapefile for Excavation
zones attached with report
Software
- AutoCAD & Surfer
Submission
- Report
- Drawings for NGL & Contour
- Drawing for Utilities
Software :
- Surfer & ArcGIS
Submission:
- Report
- Shapefile for sampling
Locations
- Surfer Grids for Uber surface
and lower Surface
- The final inputs for volume calculation :
L1
L2
L3

5. Volume Calculation for Dry Lake ,example Zone 3 Area 1D
Methods 1 Using Upper and Lower Grids
1. Step 1 :
• To clip sampling data inside or close to excavation zone boundary
Sampling points and CIC Sampling points using ArcGIS

6. - Step 2 :
• To open zone3 Shapefile in Surfer ( to get fixed extent coordinates )
-Map
-New
-Base Map

7. - Step3:
• Save shapefile zone as BLN file in surfer to use it to Blanked (Clip)
other grids.
- File
-Export
-BLN File

8. - Step4:
• Create Upper surface Grid for Elevation from Topographic Survey
Level Spot points
- Grid
- Data
- Open NGL Excel file
- Select X,Y,Z
- Gridding Method
Kriging
- Fix Grid line
Geometry for Zone3
Extent
- Spacing 1X1 m

9. - Step4:
• Output grid for Upper surface

10. - Step5:
• Blanked ( clip ) Upper Surface Grid using Zone 3 BLN file
- Grid
- Blank
- Select grid to
blank
- Select BLN

11. - Step5:
• Output Upper Grid Blanked

12. - Step6:
• Create Grid from Lower Surface from:
Upper Surface Elevation – Contamination Depth = Lower Surface Elevation
- Grid
- Excel Cutoff Data
- Select Zone3
-Use X,Y, Contamination Level
- Use Same geometry and
spacing that used for Upper
surface

13. - Step7:
• planked ( clip ) Lower Grid using Zone 3 BLN file
- Grid
- Blank
- Select grid to
blank
- Select BLN

14. - Step7:
• Output Lower Grid Blanked

15. - Step8:
• Estimated Volume :
- Grid
- volume
- Select Upper
Surface
- Select Lower Surface

16. - Step8:
• Output Volume report
• Volume (Trapezoidal Rule) = 39854.94 m³

17. • Step1: Same methods
• Step2: Same methods
• Step3: Same methods
• Step 4: to create only 1 Grid from
(cutoff value selected by
environmental Team from Sampling
log)
Volume Calculation for Dry Lake ,example Zone 3 Area 1D
Methods 2 Using one grid created from Cutoff Value

18. Step 4: Output Grid
Excavation Depth
As total Contamination
value , not Elevation
value

19. - Step5:
• Calculate Volume : 38357
- Grid
- Volume
- Select upper surface from
Cutoff Grid
- Constant value is 0

20. - Grid
- Volume
- Step8:
• Output Volume report
• Volume (Trapezoidal Rule) = 38357.75 m³

21. Volume calculation for Contaminated Piles
• Export Topographic Survey data for Piles in excel file X,Y,Z
• Create surfer grid for each pile grid 5X5 or 1X1 m related to piles
boundary
• Create contour in surfer 0.1 m interval
• Show piles grid in 3D with contour
• Select contour line for base of pile
• Calculate volume from grid ( consider pile grid as Upper Surface and
base contour as constant Z value

22. • Pile Contour and 3D
- Base contour is 36.5
- So
- Grid
- Volume
- Piles grid is Upper surface
- Constant Z = 36.5