GEOTECHNICAL INVESTIGATION REVIEW CHECKLIST

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--- SCOPE OF WORK & OBJECTIVES ---
[ ] Describe the project's intended use and structural load requirements.
[ ] Summarize the stated objectives of the geotechnical investigation as outlined in the proposal/contract.
[ ] Was the scope of work sufficient to address the project's needs? (Yes, No, Unsure)
[ ] Estimated design loads (e.g., kPa or psf).
[ ] Describe any limitations or assumptions stated in the scope of work.
[ ] Which aspects of the project were explicitly covered in the scope? (Foundation Design, Slope Stability, Earthwork, Retaining Walls, Seismic Design, Pavement Design)

--- SITE CHARACTERIZATION & GEOLOGY ---
[ ] Briefly describe the site's geological setting (e.g., near a fault line, in an area of known landslides).
[ ] Maximum Slope Gradient (in degrees) observed at the site.
[ ] Topographic Map (showing contours, drainage patterns, and existing structures)
[ ] Was a review of historical aerial photographs/satellite imagery performed? (Yes, No, Not Applicable)
[ ] Describe any visible signs of instability (e.g., cracks in the ground, tilted trees, evidence of past erosion).
[ ] Are there any known geological hazards in the vicinity (e.g., active faults, karst topography)? (Yes, No, Unknown)
[ ] Describe the soil profile at the ground surface based on visual inspection (e.g., topsoil, sand, clay).

--- BOREHOLE/TEST PIT LOCATIONS & DENSITY ---
[ ] Number of Boreholes/Test Pits
[ ] Justification for Borehole/Test Pit Density
[ ] Borehole/Test Pit Location Accuracy (GPS Coordinates)
[ ] Were Boreholes/Test Pits located to investigate areas of concern (e.g., fills, slopes)? (Yes, No, Not Applicable)
[ ] Description of any deviations from proposed borehole/test pit locations
[ ] Were borehole/test pit locations representative of the site? (Yes, No, Uncertain)
[ ] Site Plan Showing Borehole/Test Pit Locations

--- SOIL/ROCK PROPERTIES & CLASSIFICATION ---
[ ] Soil Classification System Used? (Unified Soil Classification System (USCS), ASTM Soil Classification, Other (Specify in LONG_TEXT))
[ ] Detailed Description of Soil Types Encountered
[ ] Dry Density (lbs/ft³)
[ ] Moisture Content (%)
[ ] Liquid Limit (LL)
[ ] Plastic Limit (PL)
[ ] Plasticity Index (PI)
[ ] Laboratory Tests Performed (Select all that apply) (Grain Size Analysis, Atterberg Limits, Specific Gravity, Moisture-Density Relationship, Triaxial Test, Direct Shear Test, Other (Specify in LONG_TEXT))
[ ] Notes/Comments regarding Soil/Rock Properties

--- GROUNDWATER CONDITIONS ---
[ ] Highest Recorded Groundwater Level (ft below ground surface)
[ ] Lowest Recorded Groundwater Level (ft below ground surface)
[ ] Groundwater Flow Direction (based on piezometers/field observations) (North, South, East, West, Uphill, Downhill, Uncertain/Not Determined)
[ ] Groundwater Flow Rate (estimated) (Low, Moderate, High, Not Determined)
[ ] Description of any observed groundwater quality (e.g., color, odor, presence of contaminants)
[ ] Attach any piezometer data logs or monitoring records
[ ] Was a drawdown test performed? (Yes, No, Not Applicable)

--- SEISMIC DESIGN PARAMETERS ---
[ ] Peak Ground Acceleration (PGA) - Horizontal
[ ] Peak Ground Acceleration (PGA) - Vertical
[ ] Design Response Spectrum Period (T)
[ ] Seismic Design Category (SDC) (A, B, C, D, E, F)
[ ] Description of Seismic Hazard Assessment Methodology
[ ] Seismic Hazard Maps or Data
[ ] Site Class (per relevant code) (A - Hard Rock, B - Medium Rock, C - Soft Rock, D - Medium Soil, E - Soft Soil)

--- RECOMMENDATIONS & DESIGN CONSIDERATIONS ---
[ ] Evaluate Adequacy of Foundation Recommendations
[ ] Assess Slope Stability Recommendations (if applicable)
[ ] Verify Recommended Bearing Capacity (psf/kPa)
[ ] Review Retaining Wall Design Recommendations
[ ] Recommended Ground Improvement Techniques (Select all that apply) (Vibro Compaction, Dynamic Replacement, Soil Mixing, Stone Columns, None Required)
[ ] Describe any concerns regarding settlement predictions
[ ] Foundation Type Recommended? (Shallow Foundations, Deep Foundations (Piles/Caissons), Other - Specify in Long Text)
[ ] Notes regarding recommendations for Dewatering (if required)

--- REPORTING & DOCUMENTATION ---
[ ] Overall Clarity and Readability Assessment
[ ] Report Date Verification
[ ] Original Geotechnical Report
[ ] Units of Measurement Consistency (Consistent, Inconsistent - Requires Review)
[ ] Summary of Key Findings & Assumptions
[ ] Report Accuracy - Data Validation (Verified and Accurate, Requires Further Verification)
[ ] Notes on any missing information or potential errors

--- COMPLIANCE & REGULATIONS ---
[ ] Were applicable local building codes consulted? (Yes, No, Not Applicable)
[ ] Was the investigation performed in accordance with ASTM standards? (Yes, No, Not Applicable)
[ ] ASTM Standard Version Used (e.g., ASTM D420-21)
[ ] Describe any deviations from standard practices or regulations and justification.
[ ] Upload any permits or approvals related to the geotechnical investigation.
[ ] Was the investigation performed by a licensed geotechnical engineer? (Yes, No, Not Applicable)

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