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Mr. Himanshu Mehta, P.E. Managing Director 2 February 2022 Page 2 PROJECT BACKGROUND Geosyntec cl consultants The IRCL Site is located in southern Indian River County, east of Interstate 95, south of Oslo Road, and west ofRangeline Road in Vero Beach, Florida. The IRCL Site serves the unincorporated Indian River County and municipalities of Vero Beach, Orchid, Fellsmere, Sebastian, and Indian River Shores. The SWDD administers the management and operation of the Class I Landfill at the IRCL Site and is the permittee. The IRCL Site occupies 276 acres, with approximately 141.5 acres permitted for Class I disposal, 19 acres permitted for C&D Debris disposal in Cell l of the C&D Debris Disposal Facility, and 2.5 acres permitted for a C&D Debris Recycling Facility. Cell 1 of the C&D Debris Disposal Facility went into operation in 1994. Since the C&D Debris Disposal Facility began operation prior to July 1, 2010, it is authorized to continue operation without a liner and leachate collection system, in accordance with paragraph 62-701.730(6)(a), Florida Administrative Code (F.A.C.). The C&D Debris Disposal Facility is currently operating under Permit No. 0128769 -025 -SO -24 (C&D Permit) which was issued on July 13, 2017 and expires on July 13, 2022. The permit renewal application is due by May 13, 2022. PROPOSED SCOPE OF WORK This project includes professional engineering services required to renew the Solid Waste Operation Permit for the C&D Debris Disposal Facility. The scope of work is based on the applicable requirements of Chapter 403, Florida Statue, Chapters 62-4 and 62-701, F.A.C., and Geosyntec's understanding of the project based on information provided by SWDD. Geosyntec will provide all engineering services necessary to prepare the 5 -year permit renewal application and address any RAI from the FDEP. Paragraph 9 of the Water Quality Monitoring Plan (WQMP) for the C&D Debris Disposal Facility (which is listed as Appendix 3 of the C&D Permit), states that "...sampling of all ten (10) C&D background and compliance wells shall be collected within 90 days prior to submittal of the next permit renewal." These monitoring wells would be MW --17S, MW --171, MW --18S, MW --18I, MW - 19S, MW -19I, MW -20S, MW --204 MW -215, and MW -21L The samples collected from the C&D Debris Disposal Facility monitoring wells are required to be analyzed for the 5 -year C&D Debris Facility renewal monitoring parameters listed in Paragraph 9 of the WQMP (in the C&D Permit) in accordance with paragraph 62-701.730(8)(d), F.A.C. Geosyntec was scheduled to perform the field sampling activities in January 2022 as part of the semi-annual compliance monitoring for the C&D Debris Disposal Facility as well as the Class I Landfill. This semi-annual sampling has been conducted. It should be noted that 90 days before NCP2021-3442UU1092_IRC CD Debris Disposal Facility Permit Renewal Application—FINAL engineers I scientists I innovators