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Mr. Vincent Burke, P.E July 27, 2020 Page 2 SCOPE OF WORK Task 1 — Mobilization - Fixed Fee $8,733.28 Upon notice to proceed, Tetra Tech will conduct the following activities: • Prepare a brief Work Plan for use by subcontractor and Tetra Tech field staff • Prepare a project specific Health and Safety Plan (HASP); • Procure Subcontractors Necessary for Project Completion (Certified Pollutant Storage System Contractor, laboratory, and equipment); • Permitting and notification. Tetra Tech will prepare the brief Work Plan, which is an internal document to communicate project requirements to field personnel in a clear and organized manner. The Work Plan will provide methods, materials, permits, and protocols required to complete site tasks and incorporate subcontractor procedures. The Work Plan will allow for the site work to be completed in an organized efficient manner and minimize the number of mobilizations to the Site. All site work will follow the Florida Administrative Code (F.A.C.) Chapter 62-780 and 62-762 and applicable FDEP SOPs. The plan will also include a summary of applicable permits, permit fees, and potential limitations associated with each permit as well as anticipated timeframe needed to obtain each permit. Tetra Tech will prepare a Site -Specific Health and Safety Plan in accordance with OSHA HAZWOPER requirements outlined in 29 CFR 1910. This will include the tank closure activity hazard analysis and include procedures for confined space entry. This plan will be prepared by a health and safety professional under the supervision of a Certified Industrial Hygienist. Technical specifications and subcontract agreement for required subcontracted work will be prepared under this task. These specifications will include, AST removal, concrete dike containment demolition and disposal, laboratory analysis of soil samples, and equipment. Tetra Tech will obtain all local and state permits and registration for AST removal which will be completed under this task. AST removal also requires prior notification to the FDEP. The tanks will require registration and financial assurance from IRCDUS prior to closure, and this was competed in June 2020. Note: permitting fees are not included in this proposal. Waste characterization for the liquids in the tank will be required, and samples may be required with analysis for: • BTEX and MTBE via USEPA Method 8260 • PAH via USEPA Method 8270 • TRPH via FLPRO • Arsenic via USEPA Method 6010 • Pesticide via USEPA Method 8081/8082/8141 • Herbicides via USEPA Method 815 This Task will be completed on a fixed fee basis. Task 2 — AST Closure - Fixed Fee $32,643.90 Tetra Tech and the subcontracted Certified Pollutant Storage System Contractor will be on site to properly complete the AST Closure Task. The objectives of this task will be to remove the 3 ASTs in Table 1 below and demolish and dispose of the concrete dike structure, and includes: • Closure, cleaning, removal, and transportation for recycling of 3 ASTs, as shown in Table 1. • Collection, transportation, and disposal of all sludge and liquids in the tanks. It is assumed the tanks are empty or contain less than one inch of product.