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HomeMy WebLinkAbout6401_NOCV_DEQ_RESP_20190416ROY COOPER Governor MICHAEL S. REGAN Secretary MICHAEL SCOTT Director Zee Lamb Nash County Manager 120 W. Washington St. Suite 3072 Nashville, NC 27856 NORTH CAROLINA Environmental Quality July 8, 2019 SUBJECT: Compliance Inspection Report —April 16, 2019 Nash County Landfill Permit No. 6401-MSWLF-1983, 6401-CDLF-1999, 6403-CDLF-2000, DS64-006 Nash County, North Carolina Dear Mr. Lamb, The Solid Waste Section (Section) has reviewed the response letter, dated May 17, 2019, submitted by Nash County, and the accompanying corrective action plan letter, dated May 16, 2019, prepared by Garrett & Moore, Inc. The following are the Section's response to the County's outlined planned response actions to address issues noted in the April 16, 2019 compliance inspection report and proposed timeline for corrective actions: Past Noted Violations 1. Closed MSWLF —Storm water seeps Garrett & Moore believe the liquid observed at the surface of a recently graded area at the east face of the closure landfill is likely impounded stormwater in a saturated location seeping to the surface. However, any water that comes in contact with waste is leachate and must be treated. Garrett & Moore have taken samples to determine if the water released from the landfill is leachate. The laboratory analysis of those samples will inform the corrective actions needed to resolve this violation. Please submit the results to Ervin Lane. As a temporary measure, until the testing results have determined the presence or absence of leachate, the Section approves the method of adding soil in this area to reestablish a suitable grade (percent slope) allowing the saturated areas of the vegetated cover to drain and alleviate. NORTHCAROUNAD_E Q�I Uapartmmt of Envirentnental quality North Carolina Department of Environmental Quality I Division of Waste Management 217 West Jones Street 1 1646 Mail Service Center I Raleigh, North Carolina 27699-1646 919.707.8200 Zee Lamb Page 2 of 7 July 8, 2019 2. Closed MSWLF —Impounded surface water Donna Wilson, Solid Waste Section Permit Engineer, has reviewed the proposal and the Section approves installing weep drains in settled areas of the terrace berm ditches by July 31, 2019, to remedy the areas of impounded water over waste. During installation, on -site monitoring is needed to minimize disturbance of the final cover system, specifically the low -permeability infiltration layer. All areas where vegetation is disturbed need to be re -seeded and stabilized. All areas addressed on the MSWLF should be regularly inspected following the work to ensure ditches are functional, areas with previous impounded water are relieved, and stabilization occurs. Observed Violations 6401-MSWLF-1983 & 6401-CDLF-1999 (CLOSED LANDFILL) 1. Non -Water Supply Well Identification Plates The Section approves the July 31, 2019 deadline for permanent identification plates to be installed on MW5, MW3, MW6, and GP8 in compliance with state regulations. Additionally, all monitoring wells at the facility should be inspected for compliance, well structure integrity and security. Any observed issues should be addressed. The inspection report as well as all repair actions should be documented and maintained in the operating record. 2. Edge of Waste Markers The Section approves the July 31, 2019 deadline for edge of waste markers to be installed and/or replaced at minimum every 400-feet and at corners of the closed facility. Keep in mind during installation that the Edge of Waste Markers must be visible from one to the other. 3. Repair to the Landfill Cap a. ATVs Operating on the Landfill Cap The Section approves the July 31, 2019 deadline for installing additional signage as necessary and requesting increase in patrolling of the facility during closed hours. b. Damage to the Cap from heavy machinery NORTHCAROUNAD_E Q�� DeparMett of EnNran—tal Duality North Carolina Department of Environmental Quality I Division of Waste Management 217 West Jones Street 1 1646 Mail Service Center I Raleigh, North Carolina 27699-1646 919.707.8200 Zee Lamb Page 3of7 July 8, 2019 The Section approves the July 31, 2019 deadline for all damage to the cap from heavy machinery traffic to be repaired. Other routes to access the front (northern) portion of the facility should be initiated, and the closed landfill should not be used as a traffic route for heavy equipment. c. Trees and woody shrubs growing on the closed landfill The Section approves the June 30, 2019 deadline for maintenance by mowing to be performed; and grants the July 31, 2019 deadline for all trees and unwanted woody growth to be removed. Woody vegetation too large to remove by mowing should be hand -cut at ground level and removed with minimal disturbance to cap soils. Going forward, an inspection schedule of the closed facility should be implemented to identify potential issues and problem areas and to address in a timely manner. A maintenance schedule should be implemented to maintain the vegetation and more routinely eliminate unwanted growth. 6403-CDLF-2000 (OPERATING LANDFILL) 1. Burned Yard Waste from the Old Yard Waste Area The Section approves the deadline of July 31, 2019 for the materials in this stockpile that are substantially free of stumps and/or identifiable wood waste to be used in the planned stabilization of the inactive portions of the operating CDLF. All stumps and land clearing materials larger than can be used for this application, must be treated as yard waste in accordance with Nash County Landfill's Operation Plan, which states that yard waste will be ground, and Nash County Landfill's Permit to Operate which states, "at least 75% by weight of recyclable and recovery material must be removed from the site within one year." See the November 5, 2017 Fire Incidence Report for historical information on this material. 2. Edge of Waste Markers The Section approves the July 31, 2019 deadline for edge of waste markers to be installed and/or replaced at minimum every 400-feet and at corners of the closed facility. Keep in mind during installation that the Edge of Waste Markers must be visible from one to the other. 3. CDLF Cell No Longer Receiving Waste NORTHCAROUNAD_E Q�� DeparMett of EnNran—tal Duality North Carolina Department of Environmental Quality I Division of Waste Management 217 West Jones Street 1 1646 Mail Service Center I Raleigh, North Carolina 27699-1646 919.707.8200 Zee Lamb Page 4 of 7 July 8, 2019 a. Exposed Waste The Section approves the July 31, 2019 deadline for all areas with exposed waste to be soil covered as required. Incidental uncovered waste must be properly covered or removed and placed in the active C&DLF. b. No Vegetation and Erosion Rills on Side Slopes The Section approves the July 31, 2019 deadline for all exposed soil covered areas which will not have additional waste placed for three months or more, but where final termination of disposal operations has not occurred to be seeded and mulched. Seeded areas should be inspected regularly; bare areas should be re -seeded and mulched and managed in accordance to the approved sedimentation and erosion control plan and 15A NCAC 13B .0542 (k). Additionally, going forward all seeding events should be logged with a record of seeding activities maintained on site. 4. Water Impounding on the Terracing of the CDLF Cell No Longer Receiving Waste The Section approves the July 31, 2019 deadline for the CDLF to be re -graded to prevent impounding of water. All disturbed areas should be seeded and mulched. S. Removal of Sediment in the Sediment Basin Near CDLF Cell No Longer Receiving Waste The Section approves the July 31, 2019 deadline for the sediment basin to be cleaned out, removing sediment and establishing the pond to approximate design grades. Disturbed areas should be seeded and mulched upon completion. 6. The Cut in the Berm around the New CDLF Cell a. Any changes to design or construction of the CDLF must be approved by the Section The Section approves the July 31, 2019 deadline for the berm around the new C&DLF to be reconstructed per the approved plans. Additionally, revised plans should be submitted to the Section that reflect the County's desired removal of the soil berm between C&DLF Cells 4A and 413. b. Leachate must be contained onsite or treated prior to discharge NORTHCAROUNAD_E Q�� DeparMett of EnNran—tal Duality North Carolina Department of Environmental Quality I Division of Waste Management 217 West Jones Street 1 1646 Mail Service Center I Raleigh, North Carolina 27699-1646 919.707.8200 Zee Lamb Page 5of7 July 8, 2019 The revised Plan should describe landfill filling progression as to not impound water in the active cell. The County has suggested the possibility of using Cell 4B instead of Cell 4A during periods of rain. The Section has reviewed Nash County Landfill's Permit and determined that both cells can be in operation, however, be aware that doing so could increase the amount of contaminated runoff that needs to be managed. TEMPORARY YARD WASTE AREA 1. Non -Conforming Wastes in the Yard Waste Area The Section approves the July 31, 2019 deadline for all visible non -conforming waste to be removed from the yard waste area and hauled to the landfill for disposal (C&D wastes) or removed and managed as appropriate. Nash County, Garrett & Moore, and Section staff discussed via conference call on June 28, 2019, that all non -conforming waste mixed in the yard waste debris (non -visible) would be screened and removed at the time of processing the yard waste. The Section strongly encourages Nash County to implement better methods of screening the yard waste as it is received at the convenience sites or the landfill/yard waste area. Unacceptable waste must be removed right away and not comingled with the yard waste that will be processed. 2. Temporary Yard Waste Area was approved for one-year only on November 16, 2017 Nash County has proposed permitting a Land Clearing and Inert Debris (LCID) Landfill in the vicinity of the current CDLF. The proposed time frame for submittal of the application for the LCID is September 30, 2019. The Section agrees that this is a viable course of action for dealing with any future yard waste disposal. However, until the LCID is approved, the County must manage yard waste in accordance with Nash County Landfill's Operation Plan, which states that yard waste will be ground, and Nash County Landfill's Permit to Operate which states, "at least 75% by weight of recyclable and recovery material must be removed from the site within one year." 3. Ponding Water around or within Waste in Yard Waste Area NORTHCAROUNAD_E Q�� DeparMett of EnNran—tal Duality North Carolina Department of Environmental Quality I Division of Waste Management 217 West Jones Street 1 1646 Mail Service Center I Raleigh, North Carolina 27699-1646 919.707.8200 Zee Lamb Page 6of7 July 8, 2019 The Section approves the July 31, 2019 deadline for grading of the temporary yard waste area to allow positive drainage of surface water. This site was approved for temporary use that has exceeded the limits of the approval. Further, based on observations, this site appears to hold water. The section recommends that Nash County look into approval of a more suitable area on the property to receive and process Yard Waste until a more permanent solution is in place. DS64-006 (DISASTER -ASSOCIATED YW AREA) Non -conforming Waste in the Disaster Debris Area The Section approves the July 31, 2019 deadline for all visible non -conforming waste should be removed from the disaster debris area. Nash County, Garrett & Moore, and Section staff discussed via conference call on June 28, 2019, that all non -conforming waste mixed in the yard waste debris (non -visible) would be screened and removed at the time of processing the yard waste. 2. Disaster Debris Waste and Non -conforming Waste had been Compacted and Buried Nash County has proposed permitting a Land Clearing and Inert Debris (LCID) Landfill in the vicinity of the current CDLF. The proposed time frame for submittal of the application for the LCID is September 30, 2019. The Section agrees that this is a viable course of action for dealing with future disaster debris disposal. However, until the LCID is approved and constructed, the County must manage disaster debris in accordance with the approved DS64_006 Disaster Debris Emergency Site Selection Evaluation Sheet which states the intended use of the Disaster Debris is staging for chipping or burning (Nash County must have approval from the Division of Air Quality for burning). 3. Closure should be accomplished within 6 months of initial site approval, which for this site was March 13, 2019 The Section approves the July 31, 2019 deadline for the submittal of requested information required to be granted an extension. Nash County shall have the TDDSS closed out in the approved time of the extension request approval. NORTHCAROUNAD_E Q�� DeparMett of EnNran—tal Duality North Carolina Department of Environmental Quality I Division of Waste Management 217 West Jones Street 1 1646 Mail Service Center I Raleigh, North Carolina 27699-1646 919.707.8200 Zee Lamb Page 7 of 7 July 8, 2019 I will be conducting a follow up inspection the first week of August to see that corrective actions have taken place at Nash County Landfill. Please keep the Section posted on future progress. Should you have any questions about this letter, please feel free to contact me. Sincerely, Digitally signed by Davy Conners DN: cn=Davy Conners, o=Division of Waste Management, ou=Solid Waste Section, email=davis.conners@ncdenr.gov, c=US Date: 2019.07.12 12:29:11-04'00' Davy Conners Environmental Senior Specialist Division of Waste Management - Solid Waste Section 919-707-8290 cc: Ed Mussler, Solid Waste Section Chief, NC DEQ Solid Waste Section Carolyn McClain, Assistant Attorney General Jason Watkins, Field Operations Branch Head, NC DEQ Solid Waste Section Andrew Hammonds, Eastern District Supervisor, NC DEQ Solid Waste Section Jessica Montie, Compliance Officer, NC DEQ Solid Waste Section Amanda Freeman, Compliance Officer, NC DEQ Solid Waste Section Donna Wilson, Permit Engineer, NC DEQ Solid Waste Section Ervin Lane, Hydrogeologist, NC DEQ Solid Waste Section Ben Barnes, Nash County Craig Fortner, Garrett & Moore, Inc. Vance Moore, Garrett & Moore, Inc. NORTH CAROLJNAD_E lv Oepa6 of FmUenmm l flualz North Carolina Department of Environmental Quality I Division of Waste Management 217 West Jones Street 11646 Mail Service Center I Raleigh, North Carolina 27699-1646 919.707.8200