NC0006351_Power point plant upgrades_20220617

Strickland, Bev
From: Jonna Stein <[e-mail]>
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Ulishney, Adam; Xiao, Min; Pitner, Andrew; Mcgee, Keyes
Subject: [External] NCDEQ Slides Venator Harrisburg Solids Mgmt
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The business of sustainability© Copyright 2022 by ERM Worldwide Group Limited and/or its affiliates (‘ERM’). All Rights Reserved. No part of this work may be reproduced or transmitted in any form or by any means, without prior written permission of ERM.Status Update Onsite Landfill and SWMU-5 Reconfiguration DesignVenator Chemicals, LLC FacilityHarrisburg, NCFacility ID: NCD 048 467 427-R2Presented to: NCDEQ DWQ & DWMPresented by: Venator/ERMJune 2022
www.erm.comAgenda Attendees1. Project Background – SWMU-52. Onsite Landfill & SWMU-5 Reconfiguration3. NCDEQ Stakeholders Refresh4. Local Government Approvals -Harrisburg5. Near Term Landfill Site Suitability Studies6. Next Steps7. Schedule2Roberto Scheller Senior Environmental Specialist - DWQAdam Ulishney Hazardous Waste Section Chief - DWMAndrew Pitner Assistant Regional Supervisor - DWQRob McDaniel Hydrogeologist – HWSSherri Stanley Branch Head – Solid WasteRose Pruitt Environmental Specialist – HWSClaire Osborn Environmental Engineer – Solid WasteDoug Dowden Supervisor, NPDES PermittingMin Xiao Environmental Engineer, NPDES PermittingKeyes McGee Environmental Engineer, NPDES PermittingJonna Stein Site EHS ManagerTim Smart USA Operations Director Thomas Hayes Global Environment and Legacy Leader; UKAlan Martin, P.G. Project ManagerDave Wasiela, P.E. Technical AdvisorRick Tarravechia, P.G. Partner in Charge
www.erm.comTitle of Presentation (Insert > Header & Footer to edit)3(3.5 ac.)STREAMGAUGE #1STREAMGAUGE #2
www.erm.comProject BackgroundSWMU-54• Process wastewater with sediments discharge to unlined pond• Sediments settle and water discharged via NPDES permit to Rocky River• NPDES permit renewal pending with DWQ• Pond near capacity with non-hazardous sediments• Base of sediments seasonally inundated by groundwater • Elevated nitrates and manganese levels in groundwater
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www.erm.comOn-Site Industrial Landfill for SWMU-5 Sediments7• Plan to develop onsite industrial landfill to serve facility long-term• Local landfills in the area have limited life spans; on-site landfill expected to have 60+ year lifespan• Permit onsite landfill with NCDEQ –Division of Waste Management• Landfill footprint of approximately 3.6 acres• Develop onsite borrow area to serve long term landfill operational and closure needs• Landfill will contain a synthetic liner system along with leachate collection system• Leachate will discharge to reconfigured lined SWMU-5• Landfill will be developed in phases to minimize active areas• Landfill will be utilized to dewater and collect sediments from existing SWMU-5• Temporary surge tanks will be needed during SWMU-5 dewatering
www.erm.comSWMU-5 Reconfiguration Plan8• Raise floor elevation above seasonal high water table elevations • Install synthetic liner system to reduce infiltration• Consolidate pond footprint; reduce from 3.4 acres to 2.2 acres• Remove current berm and concrete wall along Rocky River• Pond exterior slope maximum 3H:1V along Rocky River• Increase buffer between SWMU-5 and Rocky River• Add sediment filtration prior to discharge to SWMU-5 (forebay or clarifier)
www.erm.comLandfill & SWMU-5 – NCDEQ Stakeholders9• NCDEQ – Division of Waste Management – Solid Waste Section• Lead Permitting Authority for Landfill• Any Changes in Regulatory Framework?• Site Suitability / Hydrogeologic Reviewer?• NCDEQ – Division of Water Resources NPDES• Lead Contact for NPDES Permit Modification• Project Communications?• Desired Frequency for Project Updates?• NCDEQ – DWM - Hazardous Waste Section• Lead Contact for Project Communications?• Desired Frequency for Project Updates?• RCRA Permit will be updated
www.erm.comLandfill – Town of Harrisburg Land Use & Zoning 10• Site has reached out to Town of Harrisburg and submitted a Preapplication Meeting Summary Request• Items that need clarification• Current Zoning Requirements• Current Approved Land Use per Zoning Designation.• Whether a Special Use Permit is Required• Vested Rights from Long-Term Established Industrial Area – Existing Solid Waste Disposal Units.• Site needs approval letter stating that development of an Onsite Industrial Landfill is Allowed.
www.erm.comLandfill – Near Term Site Suitability Activities11• Site Reconnaissance (Complete)• Physically walk the proposed area of the industrial landfill• Develop preliminary boring location plan; access, clearing required, physical obstructions;• Locations of existing monitoring wells to preserve and/or utilize;• Rock outcrops;• Potential wetland areas or springs;• General site conditions.• Prepare Regional Site Studies (Underway)• Site property boundary• Land use and zoning• Location of all homes, industrial buildings, public or private utilities and roads• Location of wells, watercourses, dry runs, and other details regarding general topography• Floodplains• Known groundwater users• Potential or existing sources of groundwater and surface water pollution• Water intakes• Airports and runways• Subdivisions• Public parks, State Parks, Federal Parks
www.erm.comTitle of Presentation (Insert > Header & Footer to edit)12Landfill - Preliminary Hydrogeologic Subsurface Exploration Plan
www.erm.comLandfill – Near Term Site Suitability Activities13• Prepare Local Site Studies (Underway)• Correspondence from State Historic Preservation Officer for potential to impact Cultural Resources• Correspondence from NC Fish & Wildlife for potential to impact threatened or endangered species and/or habitats• Buffers from Waters of the United States and wetlands• Environmental Justice Screening (Underway)• Follow NCDEQ, Division of Waste Management, Solid Waste Section, “Guidance Specific to Solid Waste Management Permit Applicants for Identifying Underserved Communities and Determining Enhanced Public Engagement Methods” to develop “Screening Report”.• Submit “Screening Report” to Division of Waste Management separate from all other site suitability studies for comment.
www.erm.comLandfill – Near Term Site Suitability Activities14• Meeting with NCDEQ - Division of Waste Management –Conceptual Plan Review• Include NCDEQ Hazardous Waste and NPDES Water Quality,• Receive preliminary agreement with approach.• Meeting with Town of Harrisburg • Land Use and Zoning• Next Steps Necessary for Granting Approval• Pending Town’s review of preliminary plans
www.erm.comTasks to be completed in 2022 - Site Suitability Study1527-May 3-Jun 10-Jun 17-Jun 24-Jun 1-Jul 8-Jul 15-Jul 22-Jul 29-Jul 5-Aug 12-Aug 19-Aug 26-Aug 2-SepPotential Jurisdictional Wetlands - Site WalkSubsurface Exploration and Hydrogeologic StudiesRe-engage NCDEQ - Division of Waste Management - MeetingSite Suitability Application - Submittal to NCDEQ - Receive Approval September 30, 2022Site Suitability Study, Report, Submittal (assumes survey and topo complete)Buffer RequirementsRegional Siting StudiesLocal Siting StudiesLocal Government Approvals - Zoning & Land UseGeneral Topography, Rock Outcrops, Surface Waters (Site Walk)Cultural Resources and Archeological Signifacance submittal/approvalEndangered & Threatened Species submittal /approvalDevelop Conceptual DesignSite Suitability Submittal to Division of Waste Management
www.erm.comTasks to be completed in 2022/2023 – Application For Permit1614-Oct 21-Oct 28-Oct 4-Nov 11-Nov 18-Nov 25-Nov 2-Dec 9-Dec 16-Dec 23-Dec 30-Dec 6-Jan 13-Jan 20-JanApplication for Permit to Construct - Submittal to NCDEQ - Receive Permit March 15, 2023Closure PlanPost Closure PlanDesign Hydrogeologic PlanGroundwater Monitoring PlanEngineering Report - Supporting Design CalculationsApplication Submittal PackageApplication for Permit to Construct -Submittal to NCDEQDesign Plan Set, Details, Cross SectionsOnsite Borrow Area Plans & Permitting - E&S ApprovalTechnical Specifications for ConstructionConstruction Quality Assurance (CQA) PlanOperations Plan
www.erm.comSWMU-5 Reconfiguration Plan17• Preliminary Reconfiguration Plans – 4Q2022/2023
www.erm.com18Questions