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Task # Task Description Cost Assumptions
<br />1 Pre-Field Activities
<br />SLR Labor $12,260
<br />Principal Geologist $2,340
<br />Associate Scientist $5,280
<br />Senior Staff Geologist $4,000
<br />CADD Specialist $640
<br />Equipment/Expenses $2,605
<br />boring permit from SJCEHD $2,100
<br />mileage $115
<br />Misc. Supplies $50
<br />Expense Markup (15%) $340
<br />Total Task 1: $14,865
<br />2 Field Activities (Subsurface)
<br />SLR Labor $11,700
<br />Principal Geologist $1,560
<br />Associate Scientist $2,640
<br />Senior Staff Geologist $7,500
<br />Subcontractors $36,435
<br />Utility Locating Contractor $1,500
<br />CCTV Inspection Contractor $2,400
<br />Direct push contractor to advance soil borings using MiHPT $23,743
<br />Investigation Derived Waste Contractor (IDW) (soil) $1,700
<br /> Lab Analysis $2,290
<br />Lab EDFs $50
<br />Subcontractor Administration (15%) $4,752
<br />Equipment/Expenses $3,283
<br />mileage $805
<br />PID $1,050
<br />Misc. Supplies $700
<br />Shipment of Samples to Lab $300
<br />Expense Markup (15%) $428
<br />Total Task 2: $51,418
<br />3 Data Evaluation and Reporting
<br />SLR Labor $13,840
<br />Principal Geologist $3,120
<br />Associate Scientist $5,280
<br />Senior Staff Geologist $4,000
<br />CADD Specialist $640
<br />Admin $800
<br />Total Task 3: $13,840
<br />4 Indoor/Outdoor Air Sampling
<br />SLR Labor $4,710
<br />Principal Geologist $390
<br />Associate Scientist $1,320
<br />Senior Staff Geologist $3,000
<br />Subcontractors $2,496
<br />Passive Samplers + Lab Analysis for Indoor and Outdoor Samples $2,120
<br />Lab EDFs $50
<br />Subcontractor Administration (15%) $326
<br />Equipment/Expenses $782
<br />mileage $230
<br />PID $150
<br />Misc. Supplies $100
<br />Shipment of Samples to Lab $200
<br />Expense Markup (15%) $102
<br />Total Task 4:$7,988
<br />5 Project Management
<br />SLR Labor $9,180
<br />Principal Geologist $3,900
<br />Associate Scientist $5,280
<br />Total Task 4:$9,180
<br />Total Cost Estimate:$97,290
<br />2/26/2021
<br />Table 1:
<br />Cost Estimate for Supplemental Environmental Site Assessment
<br />4555 North Pershing Avenue, Stockton, CA
<br />Venetian Square Shopping Center
<br />Includes:- Review of MiHPT logs, charts, and sub-surface lithology.- Comparison of soil vapor and sub slab soil vapor concentrations with applicable screening levels.
<br />- Data table preparation, QA/QC, analysis, and data analysis summary.
<br />- Preparation of figures showing the sample results.- Preparation of draft Supplemental Environmental Assessment report summarizing the subsurface field activities and discussing the analytical results.
<br />- Comparison of indoor air and outdoor air sample concentrations with applicable screening levels.
<br />- Review of local meteorological data.
<br />- Incorporation of comments and feedback from client.
<br />- Preparation of final Supplemental Environmental Assessment report.
<br />Includes:
<br />- Preparation of a work plan for staff to follow during field activities.
<br />- Preparation and submittal of a permit application for drilling activities.
<br />- Payment of permit application fees.
<br />- Coordination and scheduling with property owner/tenant and subcontractors.
<br />- Coordination and scheduling of analytical laboratories.- Personnel time and supplies to achieve appropriate site-specific sampling locations.- Update of the site-specific health and safety plan.- Site visit for USA Dig Alert marking; USA notification.
<br />Includes:
<br />- Utilize private line locating service prior to drilling.
<br />- Site visit for CCTV sewer alignment inspection.
<br />- Review building CCTV sewer inspection and finalize sampling locations.
<br />- Install ten direct push borings to 25 ft bgs using MiHPT.
<br />- Install 3 direct push borings to 10 ft bgs for the installation of 3 dual-nested soil vapor probes at 5 and 10 ft bgs
<br />- Install 4 sub slab Vapor Pins.
<br />- Decommissioning of 13 borings under San Joaquin County Environmental Health Department inspection.
<br />- Collect 6 soil vapor samples and 4 sub slab vapor samples.
<br />- Shipment of samples to laboratory for analysis.- Laboratory analysis of soil vapor and sub slab soil vapor samples for VOCs by EPA TO-15.- Disposal of IDW (spoils from hand auger) as non-hazardous waste.
<br />Includes:
<br />- Property manager/tenant interface, client updates, scheduling, cost tracking, budget review, and overall project
<br />coordination.
<br />Includes:
<br />- Pre-sampling building survey performed in accordance with the DTSC Supplemental Guidance: Screening and
<br />Evaluating Vapor Intrusion (February 2020). - Placement of passive samplers at 6 (5 + 1 dup) indoor locations and 2 outdoor locations.
<br />- Collection of 48 to 72 hour air samples at 6 (5 + 1 dup) indoor locations and 2 outdoor locations.- Shipment of samples to laboratory for analysis.- Laboratory analysis of indoor air and outdoor air samples for VOCs by EPA TO-17.
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