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04 <br /> Iffk ' ED. No G. BROWN JR. <br /> �9�;a GOVERNOR <br /> 6A7a MATTHEW RODRIQUEZ <br /> Water Oars SECRETARY FOR <br /> ENVIRONMENTAL PROTECTION <br /> Central Valley Regional Water Quality Control Board <br /> REC,C­" <br /> 25 June 2015 JUN 29 20115 <br /> NVIRC)NMNTA Hlug <br /> Dennis Leikem },/ '-AFI°DICES <br /> Environmental Manager <br /> Musco Family Olive Company <br /> 17950 Via Nicolo <br /> Tracy, CA 95377 <br /> FON®A CLEAN CLOSURE WORK PLAN, MUSCO FAMILY OLIVE COMPANY, SAN <br /> JOAQUIN COUNTY <br /> The Musco Family Olive Company (Musco) utilizes four Class II surface impoundments (Ponds <br /> A through D) to contain high strength waste generated from olive processing. These ponds are <br /> regulated by Waste Discharge Requirements (WDRs) Order R5-2015-0125. Pond-A is required <br /> by the WDRs to be decommissioned due to a non-functioning Leachate Collection Recovery <br /> System (LCRS). WDRs R5-2015-0125 requires a Final Closure Plan be submitted by 1 May <br /> 2015. <br /> Musco submitted the Final Closure Plan (the Plan) for Pond A on 1 May 2015 to comply with <br /> Provision H, Item 11.c, of WDRs R5-2015-0125. The Plan indicates that "Musco's intention is to <br /> remove all of Pond A's components including precipitates and settled solids and to recycle liner <br /> and LDS materials." Finding 9 of the WDR describes the components of Pond A which states: <br /> double lined with FML over LCRS over Clay. For Musco to receive clean closure, all Pond A <br /> components, as described in the WDRs must be removed. For clarification of requirements, <br /> Finding 121 of the WDRs explains the removal of the containment system for Pond A as "the <br /> liner system, LCRS, sludges, and any contaminated soil will be removed and taken to an off-site <br /> appropriately-permitted landfill or recycled. The soil underlying the impoundment will be <br /> sampled for the presence of contaminants, and if necessary will be removed and disposed of at <br /> the appropriate waste disposal site." Chapter 2, Article 2. Specific Definitions of Title 27, "liner <br /> systems" are defined as follows: Liner System: (SWRCB) means the entire sequence of <br /> individual liners, composite liners, and leachate collection system(s) which prevent or minimize <br /> releases from the waste management unit (WMU). <br /> Musco's plan proposes clean closure of Pond-A in accordance with Title 27, Section <br /> 21400(b)(1), which states: Mandatory Clean-Closure Attempt— Unless the discharger <br /> demonstrates, and the RWQCB finds, that it is infeasible to attempt clean-closure of the <br /> impoundment, then all residual wastes, including sludges, precipitates, settled solids, and liner <br /> materials contaminated by wastes, shall be completely removed from the impoundment and <br /> discharged to an approved Unit. Remaining containment features shall be inspected for <br /> contamination and, if not contaminated, can be dismantled. Any natural geologic materials <br /> beneath or adjacent to the closed impoundment that have been contaminated shall be removed <br /> for disposal at an appropriate Unit. For surface impoundments that are successfully <br /> clean-closed, as herein described, the RWQCB shall declare the Unit no longer subject to the <br /> SWRCB-promulgated requirements of this title. If, after reasonable attempts to remove such <br /> KARL E. LONGLEY SCD, P.E„ CHAIR I PAMELA C. CREEDON P.E., BCEE, EXECUTIVE OFFICER <br /> 11020 Sun Center Drive#200,Rancho Cordova,CA 95670 1 www.waterboards.ca.gov/centralvalley <br /> ✓`�RECYCLED PAPER <br />