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HomeMy WebLinkAbout0603_ROSCANS_2012Ir sentTo C3 U C3 Robed Wiaemaa, County. Manager � Cti 1Avery County 1 P.O. Box640 Newland, NC 25657-0640 �� County of Avery Division of Solid Waste Management Post Office Box 640 Phone: (828) 737-5420 I! C EN LD - 5 202 SOL":D WASTE SECTION roSkEVILLE i2EGIONAL OFFICE Newland, NC 28657 Fax: (828) 733-8209 Henry C. Norris Jr. Director Eric Foster Asst Director November 2, 2012 Ms. Deborah Aja Environmental Senior Specialist NCDENR - Solid Waste Section Ashville Regional Office 2090 US HWY 70 Swannanoa, NC 28778 RE: Notice of Violation Facility Permit # 06-03 Avery County Landfill Spruce Pine, NC 28777 Dear Ms. Aja: Avery County received your Notice of Violation (NOV) letter dated October 25, 2012 (attached). The NOV outlined violations by Avery County for failure to cover waste as witnessed on the October 11, 2012 inspection (attached). The NOV listed two (2) conditions for compliance. This letter addresses the County's response to those conditions. Each condition is listed in italics followed by our response in bold. Compliance Schedule Response Condition 1: Immediately operate the solid waste management facility in accordance with the Solid Waste Management Rules, 15A NCAC 138, Article 9 of the Chapter 130A of the North Carolina General Statutes (NCGS 130A-290, et seq.), the conditions contained in Permit No. 06-03; and the approved plan. Response: The NOV was shared with staff. Avery County endeavors each and every day to be good stewards of the site, community and the environment. As such we acknowledge this condition. Ms. Aja November 2, 2012 Page 2 of 5 Condition 2: By November 5, 2012, cover all exposed construction and demolition debris waste with six inches of earthen material. In areas which will not have additional wastes placed on them for three months or more, but where final termination of disposal operations has not occurred, cover and stabilized with vegetative ground cover or other stabilizing material. Response: Following the site inspection, Avery County cut both subject areas back to a 3 horizontal : 1 vertical slope and covered the exposed waste areas with a minimum 6 inches of soil cover. Both areas were hydro -seeded the week of October 22, 2012. Pictures of the completed area are provided below. Additionally, we would like to respectfully disagree with this NOV due to the relative size of the subject area of concern. The area of insufficient cover is 0.004 acres. As we both know, the inherent issues associated with C&D type waste do not present the same vector attractions as that of municipal solid waste such that weekly cover is considered adequate. We acknowledge the department's point in this matter, but we, as the County, would have preferred this to be addressed as a concern rather than to have escalated to the severity of a NOV for 0.004 acres. Ms. Aja November 2, 2012 Page 3 of 5 Additional Comments The following statements from the October 11, 2012 inspection (attached) are being addressed by Avery County for the purposes of documentation. Comment 3 (page 4 of 7): The tipping floor had been cleaned. Cracks were visible throughout the tipping floor surface and there appeared to be extensive wear over the entire surface. There was no movement of broken concrete observed in the surface layer. However, leachate could become trapped in the cracks at the surface and potentially reach the base layers. Should the tipping floor base layer be compromised below the cracked surface it would be possible for leachate to be released underneath the building and outside the leachate collection system. Any release of leachate outside of the collection system would be a violation of the Solid Waste Management Rules and could require corrective actions. The facility should schedule making repairs to the floor as quickly as possible to remain in compliance and to avoid potential expensive remediation. Response: Avery County believes in a pro -active effort to maintain the integrity of the tipping floor and understands the concerns of the department. Therefore, we offer some additional background as follows: • When cracks were noted in September 2005 we undertook an improvement project to re -surface the floor. • On October 1, 2005 a temporary repair was made using Polytops MMA Grout, a methyl Methacrylate self -leveling grouting and patching material. The grout was applied to the affected area, per manufacturer's instructions, which completely sealed the wear damage. • In May 2007, the tipping floor was completely resurfaced using 8000 psi fiber reinforced concrete to a depth of 4-5 inches. • The additional floor height caused clearance issues over the entire span of the transfer station entrance. In July 2008 the entire transfer station entrance was raised resolving this issue. Based on historical events, we know the original tipping floor surface was not compromised to the point that would allow for Ms. Aja November 2, 2012 Page 4 of 5 any release of leachate outside the collection system, and are confident the current floor cracks are stable and superficial. As an additional precaution these cracks are monitored and will be sealed, if necessary, to further prevent substantial damage and further unnecessary cost to the County. Comment 28 (page 5 off: There was evidence of erosion in the intermediate cover over inactive cells in Phase I and Phase 3. Vegetation needs to be re-established in these areas. It was stated that re -seeding was scheduled. The Operations Manual [Environmental Management, 3.2.2] requires that intermediate cover that has been exposed for more than 30 days must be seeded immediately and repaired when erosion features are identified. Response: Based on your inspection day comments, we believe the aforementioned area is part of the current borrow and is considered active (more often than every 30 days). As required, this area has established erosion control devices and utilizes best management practices. Comment 29 (page 5 of 7): The storm water control devices (sediment ponds, skimmers, storm water control ditches, etc.) were observed. The Operations Manual [Environmental Management 3.2.2] requires that the on -site basin be inspected regularly for sediment build-up or erosion damage. The basin should be cleaned out when sediment fills the lower half of the basin. It was stated that the skimmer was operational. The basin below the closed portion of Phase 2 must also be cleaned out if sediment has filled the lower half of the basin. Please contact... Response: To date sediment levels in Basins 3 and 4 are approximately 10% impacted at their upper ends (15t baffle) and are functioning as designed. There is no indication of sediment buildup in the lower half of either basin, as indicated by stabilized vegetation. The skimmer is operational and remains the primary device for dewatering the basins effectively. Weekly surface water basin monitoring is conducted and recorded for preventative maintenance, as part of the NPDES permit routine. This process allows periodic monitoring as well as post -storm response to any issues at the site. We encourage review of our inspection records on your next visit such that we can demonstrate our efforts to maintain site compliance and minimize its impact on the environment. Ms. Aja November 2, 2012 Page 5 of 5 Conclusion Avery County is committed to training their personnel properly and maintaining their facility in compliance with applicable rules and requirements. At this time, we believe Avery County has met the conditions for compliance as outlined in the Notice of Violation. As the department has observed, Avery County has made significant improvements to the facility and its operations over the past five (5) years and will treat any concerns that the department may have with the highest importance. If you have questions, or require additional information, please contact me at your earliest convenience at 828-737-5420 or by email below. Y Ave ddy" Norris Solid Waste Director buddy. norris@averycountync.gov cc: Robert Wiseman, Avery County Manager Mark Poindexter, NCDENR Solid Waste Section Jason Watkins, NCDENR Solid Waste Section Jessica Montie, NCDENR Solid Waste Section Allen Gaither, P.E., NCDENR Solid Waste Section Kristen Hicklin, NCDENR Land Quality Section Stacey Smith, P.E., Smith Gardner, Inc. attachments