2021-125 - Laserfiche WebLink

Home Browse Search

Mr. Himanshu H. Mehta, P.E. 3 August 2021 Page 2 19 acres is comprised of Cell 1 C&D debris disposal facility, and 2.5 acres consists of a C&D debris recycling facility. The Class I landfill currently accepts both Class I waste and C&D debris for disposal under the Florida Department of Environmental Protection (FDEP) Construction and Operation Permit with permit numbers 0128769 -022 -SC and 0128769 -023 -SO and the subsequent modifications issued to this permit by the FDEP through December 16, 2020 (Class I Permit). The C&D debris disposal facility operates under FDEP Permit No. 0128769 -025 -SO -24, dated July 13, 2017 (C&D Permit). The Water Quality Monitoring Plan (WQMP) for each of the IRCL facility permits (which is listed as Appendix 3 of each permit) indicates that groundwater and surface water quality monitoring are required. Semi-annual sampling of the Class I landfill and C&D debris disposal facility groundwater monitoring wells shall be conducted in January and July 2020. The samples collected from the Class I landfill and C&D debris disposal facility monitoring wells shall be analyzed for the routine monitoring parameters listed in Section 11.3 (Class I Permit) and Paragraph 8 (C&D Permit) of the WQMP, respectively, as required by paragraphs 62- 701.510(5)(c) & (7)(a) and 62-701.730(8)(d), Florida Administrative Code (F.A.C.). Samples from one surface water monitoring site (SW -2) shall be collected semi-annually in January and July, if water is discharging from the stormwater pond. The surface water samples, if collected, shall be analyzed for the list of parameters listed in Section 11I.2 of the Class I Landfill WQMP, as required by paragraphs 62-701.510 (5)(d) and (7)(b), F.A.C. Water Quality Compliance Monitoring for the C&D Debris Disposal Facility Results of routine sampling of C&D debris disposal facility groundwater monitoring well (MW - 21S) in January 2017 indicated exceedances of benzene and sodium groundwater cleanup target levels (GCTLs). As a result, SWDD was requested by FDEP to initiate evaluation monitoring in accordance with subsection 62-701.510(6), F.A.C. Pursuant to this request SWDD installed one groundwater monitoring well (MW -49S) in July 2017, and subsequently other wells (MW -33S, MW -405, MW -505, MW -515, and MW -52S) in May 2019. These wells (MW -215, MW -33S, MW -355, MW -405, MW -49S, MW -505, MW -515, and MW -52S) and three surface water (SW) Lateral Canal (LC) sample sites (SW -LCI, SW-LC2, and SW-LC3) have been sampled quarterly from July 2017 to October 2019 under an evaluation monitoring program with FDEP. However, in correspondence from FDEP to SWDD dated 14 October 2019, the FDEP approved SWDD's request to replace the evaluation monitoring of the eight groundwater wells and three surface water sample sites with quarterly assessment monitoring and with the addition of other parameters (arsenic, benzene, naphthalene, and other semi -volatile organic compounds [VOCs]) to the suite of parameters to be analyzed for at these wells. The FDEP also requested NCP2020-3158/JL21057 GW Compliance Technical Support Services.doc