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HomeMy WebLinkAbout4501_ROSCANS_2010to IL rl.l . IT7L r�= USE co 1-1711 Postage $ nj Certified Fee f J M O Return Receipt Fee Postmark H/ 0 (Endorsement Required) ❑ Restricted Delivery Fee (Endorsement Required) O ul R r Total Postage & Fees $ ru Sent To - Marcus ]ones, Director Henderson County - Engineering& Facility Services -_.._...________-_____ Street, Apt. No.; 100 North King Street 1-3 or PO BOX No. Hendersonville, NC 28792 City, Stafe, ZI15+4 ` - M ____ 11. �...k SENDER.- COMPLETE a li • ON ON DELIVERY ®. Complete Items 1 2, and 3. Also complete A. Signature item 4 if Restricted Delivery is desired. ❑ Agent ® Print yournam'e"and address on the reverse ,. ❑ Address so that we can return the card to you. B. Received y (Printed Name) 'C:-Date of DOM ■ Attach this dard-to'the,badl of"the mailpiece, fv or on the front if space permits.' D. Is delivery address different from item 1? El Yes 1. Article Addressed to = Marcus ]ones, Director If YES, enter delivery address below: ❑ No I Henderson County Engineering & Facility Serv_ ices - - 100 North King Street Hendersonville,. NC 28792 3. Service Type =KCeitified Mail ❑ express Mail ❑ Registered ASkReturn Receipt for Merohandi ❑ Insured Mail ❑ C.O.D. 4. Restricted Delivery? (Extra Fee) ❑ Yes 2. Article Number 7006 2150 0005 2458 9228 (Transfer from service _ PS Form 3811, February 2004 Domestic Return Receipt - 102595.02-M-t: AAla NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES UNIT WE: Lined LCID YW Transfer Compost SLAS COUNTY: HENDERSON MSWLF PERMIT NO.: 45-01 Closed X HHW White mein T&P FIRM MSWLF goods FILE TYPE: COMPLIANCE Closed X Closed X Asbestos X TVA X DEMO X SDTF CDLF CDLF atop Disposal Industrial Closed Area(s) Landfill MSWLF Date of Audit: 03/10/2010 FACILITY NAME AND ADDRESS: Henderson County Solid Waste Landfill Date of Previous Site Visit: 02/11/09, GPS COORDINATES: N: 35.35558, E:-82.49531 FACILITY CONTACT NAME AND PHONE NUMBER: Marcus Jones — Henderson Co. Director of Engineering 100 N. King Street Hendersonville, NC 28792 FACILITY CONTACT ADDRESS: Henderson County Solid Waste Transfer Facility 802 Stoney Mountain Road Hendersonville, NC 28971 (828) 697-4505 AUDIT PARTICIPANTS: Andrea Keller — DENR Solid Waste Section Bill Wagner — DENR Solid Waste Section Will Sagar— Henderson Co. Solid Waste Director Natalie Berry — Henderson Co. Asst. County Engineer Rebecca Coplin — Henderson County SW Dept. STATUS OF PERMIT: MSWLF Transition Plan Approval — November 13, 1995 MSWLF stopped receiving waste — December 31, 1997 MSWLF and C&DLF on top of closed MSWLF Closure Permit — April 11, 2006 C&DLF stand-alone PTO — October 4, 2001 C&DLF stand-alone — Inactive (waiting on formal closure letter from the Section) PURPOSE OF AUDIT: COMPREHENSIVE NOTICE OF VIOLATION(S): Closed stand-alone C&DLF 15A NCAC 13B .0531 Applicability (c) states: that Owners and operators of C&DLFfacilities and units must conform to the requirements of Rules .0531 through .0547 of this Section as follows: C&DLF units permitted to 15A NCAC 13B .0510 of this section requires that a disposal site be closed in accordance with rule. 0505 of this Subchapter. 15A NCAC 13B .0505(4)(a) states: Adequate erosion control measures shall be practiced to prevent excessive on -site erosion. 15A NCAC 13B .0505 (6)(a) states: Within six months after final termination of disposal operations at the site or a major part thereof or upon revocation of a permit, the area shall be stabilized with native grasses. During the comprehensive inspection it was determined that the stand-alone closed C&DLF exhibited excessive rills, discharge, and uncovered waste with little to no stabilization with native grasses. See items 1, 2, and 3 noted below in the Areas of Concerns and Comments section. Henderson County is in violation of 15A NCAC 13B .0505(4)(a) for failure to prevent excessive on -site erosion at the stand-alone C&DLF unit. Henderson County is in violation of 15A NCAC 13B .0505(6)(a) for failure to stabilization the site with native grasses within six months of final termination of disposal operations. In order to achieve compliance, Henderson County must, by June 4, 2010, correct the settlement, subsidence, erosion, and vegetation requirements at the C&DLF unit. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. Closed MSWLF 15A NCAC 13B .1627 (d) Post -closure criteria (1)(A) states: Maintaining the integrity and effectiveness of any cap system, including making repairs to the cover as necessary to correct the effects of settlement, subsidence, erosion, or other events, and preventing run-on and run-off from eroding or otherwise damaging the cap system; During the comprehensive inspection it was determined that the MSWLF with a C&DLF on top exhibited erosion rills, discharge, and uncovered waste. The surface water drainage in the drainage ditch; as it passes through solid waste, is considered leachate and must be treated accordingly. Additionally, woody tree growth was established on the lower slopes of the MSWLF. See items 2 and 4 noted below in the Areas of Concerns and Comments section. Henderson County is in violation of 15A NCAC 13B .1627(d)(1)(A) for failure to maintain the integrity and effectiveness of the closed MSWLF cap system. In order to achieve compliance, Henderson County must, by May 7, 2010, submit a plan to the Section detailing how the County intends to achieve compliance regarding the settlement, subsidence, erosion, and woody vegetation at the closed MSWLF unit and the closed C&DLF unit atop the MSWLF unit. This plan must include a reasonable timeline for corrective actions. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. You are hereby advised that, pursuant to N.C.G.S. 130A-22, an administrative penalty of up to $15,000 per day may be assessed for each violation of the Solid Waste Statute or Regulations. For the violation(s) noted here, you maybe subject to enforcement actions including penalties, injunction from operation of a solid waste management facility or a solid waste collection service and any such further relief as may be necessary to achieve compliance with the North Carolina Solid Waste Management Act and Rules. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 4 of 10 2. Future site maps submitted to the Section, including proposed site plans regarding the new Transfer Station, access roads, Material Recovery Facility, and convenience center drop off locations should indicate all site fill areas in relation to the proposed activities. In addition, per the memorandum dated May 29, 2009 (Subject: Permanent Edge -of -Waste Markers at Construction and Demolition Debris Landfill, Industrial Solid Waste Landfills, and Municipal Solid Waste Landfills), owners and operators of all active, inactive and closed landfill units should install and maintain permanent edge -of -waste (EOW) markers for all landfill units. (See attached memo). Further discussion regarding EOW issues are found below. 3 In addition to the above -noted fill activities, there is an active beneficial fill area located south of the current white goods area (governed under the 45-04T permit). The beneficial fill area must be controlled in order to 03/10/2010 photos #1: painted block, rebar, porcelain and some plastics were noted. 15A NCAC 13B .0562 Beneficial Fill (1) states: the fill material consists only of inert debris limited to concrete, brick, concrete block, uncontaminated soil, rock, and gravel. While most of the material noted at the site conforms with the above -stated definition, this area is not considered a disposal site for solid waste and thus all non -conforming materials must be sorted and removed from this fill area for proper disposal. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 4 of 10 2. Future site maps submitted to the Section, including proposed site plans regarding the new Transfer Station, access roads, Material Recovery Facility, and convenience center drop off locations should indicate all site fill areas in relation to the proposed activities. In addition, per the memorandum dated May 29, 2009 (Subject: Permanent Edge -of -Waste Markers at Construction and Demolition Debris Landfill, Industrial Solid Waste Landfills, and Municipal Solid Waste Landfills), owners and operators of all active, inactive and closed landfill units should install and maintain permanent edge -of -waste (EOW) markers for all landfill units. (See attached memo). Further discussion regarding EOW issues are found below. In addition to the above -noted fill activities, there is an active beneficial fill area located south of the current white goods area (governed under the 45-04T permit). The beneficial fill area must be controlled in order to 03/10/2010 photos #1: painted block, rebar, porcelain and some plastics were noted. 15A NCAC 13B .0562 Beneficial Fill (1) states: the fill material consists only of inert debris limited to concrete, brick, concrete block, uncontaminated soil, rock, and gravel. While most of the material noted at the site conforms with the above -stated definition, this area is not considered a disposal site for solid waste and thus all non -conforming materials must be sorted and removed from this fill area for proper disposal. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 5 of 10 4. Surface water runs between the closed MSWLF and the fill area listed at 1982 Disposal Area (may also be MSWLF), and then passes along the east border of the TVA 1978 fill area. This drainage/creek area appears to have a build up of surface waste (metals and plastics), windblown material, and/or possible uncovered waste (unable to determine fill areas on older, closed fill units as there are no EOW markers in place). 03/10/2010 photo #2 This material should be removed for proper disposal as this activity could be considered the establishment of an illegal open dump site. It is recommended that this clean up be conducted before visibility is lost due to vegetation growth over the spring/summer months. INACTIVE (stand-alone) C&DLF CONEAENTS: The stand-alone C&DLF had met closure requirements at the time of the required engineering submittal. However, in the months following this documentation of final cap thickness and grading at the closed C&DLF the landfill unit cap has suffered considerable erosion and slumping. 1. The erosion ditch pictured below had exposed waste and appeared to be outside of the existing EOW markers in place at the C&DLF. This may be due to erosion of a previous fill area, or of transport of waste off the 2. EOW markers will need to be re-established for the closed C&DLF. The wooden stakes currently in place are not stable. It is recommended that EOW markers be: visible in line of site from marker to marker, made of materials able withstand the elements, and labeled `BOW" or similar. FACILITY COMPLIANCE AUDIT REPORT Division `of Waste Management Solid Waste Section . Page 6 of 10 0/10 EOW markers Slumping was visible on the southwestern slope of the landfill. Additionally, several leachate seeps were noted. This area requires soil cover and vegetation for erosion control. The leachate seeps appeared to stay ze should be investigated by the county to verify. 03/10/10 The access road on the C&DLF is slumping and eroding and the ground cover appears unstable (visible cracking). The EOW markers are on the outside edge of the access road are being pushed along with the 03/10/10 Items 1, 2 and 4 need to be addressed as required in the Notice of Violation section within this audit report. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 7 of 10 CLOSED MSWLF COMMENTS: The closed MSWLF footprint is considerably larger than the current area marked with EOW markers. Correct the EOW markers as soon as possible. Due to the planned site construction activities, and with reference to the attached memorandum regarding EOW markers, a survey of EOW should be conducted for all fill areas. 2. The access road located on the MSWLF waste fill area (leading up to the white goods, closed C&DLF, and grinding operation areas) currently shows EOW markers to the "outside" or left of the road (see photo below). Per Mr. Sagar and site maps referenced earlier, the EOW is actually 100-300' past these EOW markers. In this region, significant vegetation has taken root. This area must be accessible, mowed regularly, and must not contain any woody vegetation (trees). 03/10/10 photo 43 While the MSWLF was closed under the .1600 Rules and the C&DLFs, Demolition LF, and TVA disposal area were closed under the .0500 Rules, all Areas must meet the Post -Closure General Condition stated in the permit such that the owner or operator shall maintain the integrity and effectiveness of any cap system. The woody/tree growth is encroaching upon the cap system. As these types of root systems will most likely extend beyond the erosion layer into the impermeable layer of the cap (thus destroying the integrity of the cap system and creating a path for water into the landfill), and as trees both inhibit the proper mowing and necessary maintenance of the cap while impeding on the ability to visually inspect the cap integrity, this woody shrub/tree growth must be eliminated. Any stumps and root systems of larger trees must be removed and the cap system repaired. 3. The closed MSWLF Post -Closure Conditions (April 11, 2006) in the Letter of Closure and the .1600 Rules are the governing regulations for this landfill unit. The list of Approved Documents includes Closure Plans, Post - Closure Use Plan, Methane Gas Remediation Plan, and a Ground Water Corrective Action Plan. During the next scheduled site visit, the Section wishes to review these documents, in particular Part C: Methane Gas Remediation Plan — please have this available at the landfill at the time of the site inspection. 4. The closed MSWLF has a drainage ditch running on the "inside" of the access road. This drainage ditch exhibited erosion to the extent that solid waste was exposed and the landfill cap exhibited erosion such that rills had formed and discharge was draining into the drainage ditch. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 8 of 10 03/10/10 Rills/discharge from landfill into drainage ditch, photos #4 Drainage ditch/waste #.5 03/10/10 Post Closure General Condition #2 states that the owner or operator shall maintain the integrity and effectiveness of any cap system, including making repairs to the cover as necessary to correct the effects of settlement, subsidence, erosion, or other events, and preventing run-on and run-off from eroding or otherwise damaging the cap system. Item number 2 and 4 need to be addressed as required in the Notice of Violation section within this audit report. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. 5. The groundwater monitoring data was available and currently under review by the Section hydrogeologist. 6. The landfill gas (LFG) monitoring plan was unavailable at the time of the audit. However, the collected data was available. Henderson County utilizes Enerdyne for maintenance of the gas extraction system and for the collection of LFG monitoring data. While monitoring data was available for review, due to the lack of a Plan it was difficult to determine the following: Number of wells and location of wells, whether the methane data was in %Volume or % LEL, and what the other data points on the spreadsheet represented (structures on/off property?). Additionally, two of the LFG monitoring wells located on the north side of the property (in the region where, historically, methane migration had occurred) were not capped, locked, or labeled. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 9 of 10 03/10/10 LFG Monitoring well. #6 7. No data was available that appeared to represent monitoring in the facility site structures (office buildings, scale house, etc.) as required in both Rule and in Closure Condition #12: The owner or operator shall maintain and operating the gas monitoring system to ensure that: (a) The concentration of methane gas generated by the facility does not exceed 25% of the lower explosive limit for methane in facility structures (excluding gas control or recovery system components); and (b) The concentration of methane gas does not exceed the lower explosive limit for methane at the facility property boundary. Please provide evidence that all facility structures have been monitored for LFG. If the LFG Monitoring Plan does not include all structures, or is out of date with current site activities and future plan, an updated LFG Monitoring Plan should be submitted during the next permit application/amendment/renewal cycle. 8. During the site inspection, it was stated (W. Sagar) that groundwater monitoring wells had been screened for methane as part of an assessment activity pertaining to groundwater contamination at the site. It was also stated that the %Vol of methane in at least one of these wells was >35% methane. Depending on the actual readings and the location of this well(s), this information should have been immediately communicated to the Section hydrogeologist (Jaclynne Drummond, 919-508-8500) to determine a potential course of action. Per Closure Condition #13: If methane gas levels exceeding these limits are detected, the owner or operator must take all steps required in Rule .1642(4)(c). Methane gas remediation plans approved by the Division are described in the list of Approved Documents, Attachment 1, Part C. Please provide the LFG data collected from this assessment activity to Ms. Drummond. Please contact me if you have any questions or concerns regarding this audit report. Phone: (828) 296-4700 Andrea Keller Environmental Senior Specialist Regional Representative Mailed on : 04/08/10 by Hand delivery US Mail Certified No. [ 7006 2150 0005 2458 9228 ec: Mark Poindexter, Field Operations Branch Supervisor Deb Aja, Western District Supervisor Page 10 of 10 Donald Herndon, Compliance Officer Larry Frost, Permit Engineer Jaclynne Drummond, Section Hydrogeologist Natalie Berry, Assistant County Engineer: nber;y@hendersoncountync.org Steve Wyatt, County Manager: snatta,hendersoncouniync.org Rebecca Coplin, Admin. Asst. Solid Waste Division: rcopliii@,hendersoncountync.org NCDEN North Carolina Department of Environment and Division of Waste Management Beverly Eaves Perdue Dexter R. Matthews Governor Director May 29, 2009 Memorandum Natural Resources To: Construction and Demolition Landfill Owners and Operators Industrial Solid Waste Landfill Owners and Operators Municipal Solid Waste Landfill Owners and Operators From: Solid Waste Section Dee Freeman Secretary Subject: Permanent Edge -of -Waste Markers at Construction and Demolition Debris Landfills, Industrial Solid Waste Landfills and Municipal Solid Waste Landfills 15A North Carolina Administrative Codes (NCAC) 13B .0540(1) and (2) and 13B .1619(d)(1) require operators and owners of construction and demolition (C&D) landfills, industrial solid waste landfills (ISW) and municipal solid waste (MSW), respectively, to establish and maintain buffers. This requirement is intended to prevent accidental disposal of waste outside permitted disposal units during the active life of the facility and to be able to identify the boundaries of the disposal unit during the post -closure period. In order to comply with this requirement, effective January 1, 2010 owners and operators of all active, inactive and closed C&D landfill units, ISW landfill units and MSW landfill units shall install and maintain permanent edge -of -waste markers for all landfill units. Markers shall be placed to clearly delineate the edge -of -waste around the perimeter of every active, inactive and closed disposal area. All markers must be maintained throughout the life of the landfill and throughout the required period of post -closure care. In addition, facility staff should be aware of and be able to show Division staff the permitted boundary of the facility. A compliance survey may be required as per NCAC 13B .0542 (m) and .1604 (b) (2) (M). If you have any questions concerning this requirement, please contact the Environmental Senior Specialist in your area. See www.wastenotnc.org/swhome/FieldOpMapC.pddf for contact information. 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone: 919-508-84001 FAX: 919-715-40611 Internet: www.wastenotnc.org An Equal Opportunity 1 Affirmative Action Employer One NorthCarolina Aahlrall'l� f N gMcGill A S S O C I A T E S May 5, 2010 Ms. Andrea Keller Environmental Senior Specialist Solid Waste Section Division of Waste Management North Carolina Department of Environment and Natural Resources 2090 U.S. Highway 70 Swannanoa, North Carolina 28778 Dear Ms. Keller: MAY - 5 2010 SOLID WASTE SECTION ASHEVILLE REGIONAL OFFICE RE: Facility Compliance Audit Report Henderson County Solid Waste Landfill Henderson County, North Carolina Permit # 45-01 On behalf of Henderson County, North Carolina, we are providing this response to the Facility Compliance Audit Report dated March 10, 2010 and the subsequent Partial/ Follow-up Facility Compliance Audit Report dated April 28, 2010. Based on McGill Associates review of the specific site conditions, we have prepared this response to generally correspond with the indentified Notice of Violations in the audit report as well as the Areas of Concern for each identified facility. Closed Stand -Alone C&DLF 15A NCAC 13B .0505 (4)(a) - Failure to prevent excessive on -site erosion at the stand- alone C&DLF unit. 15A NCAC 13B .0505 (6)(a) — Failure to stabilize the site with native grasses within six months of final termination of disposal operations. In order to achieve compliance, Henderson County must, by June 4, 2010, correct the settlement, subsidence, erosion, and vegetation requirements at the C&DLF unit. The seepage/leachate release issue must be addressed immediately to ensure that leachate doe not leave the site. E n g i n e e r i n g e P l a n n i n g F i n a n c e McGill Associates, P.A. • P.O. Box 2259, Asheville, NC 28802 • 55 Broad Street, Asheville, NC 28801 828-252-0575 • Fax: 828-252-2518 Ms. Andrea Keller May 5, 2010 Page 3 Closed MSWLF 15A NCAC 13B .1627 (d)(1)(A) — Failure to maintain the integrity and effectiveness of the closed MSWLF cap system. In order to achieve compliance, Henderson County must, by May 7, 2010, submit a plan to the Section detailing how the County intends to achieve compliance regarding the settlement, subsidence, erosion, and woody vegetation at the closed MSWLF unit and the closed C&DLF unit atop the MSWLF unit. This plan must include a reasonable timeline for corrective actions. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. The County has been addressing the seepage/leachate releases on the closed MSW Landfill facility. Some of the seepages/leachate releases have been repaired in general conformance with the enclosed detail titled "Leachate Weep Repair" and the County is in process of completing the remainder. Continued periodic inspections of the closed MSW Landfill facility will be conducted to ensure that other apparent leachate seepages/releases are promptly noted and repaired to prevent leachate from leaving the site. The County will begin repairs to the closed MSW Landfill cap system relative to any settlement, subsidence and erosion upon completion of the cap repair activities associated with the stand-alone C&D Landfill. This repair activity associated with the closed MSW Landfill should be complete by August 16, 2010. Activities will initially include repairing those areas specifically noted in the March 10, 2010 Facility Compliance Audit Report. The cap system will then be assessed by the appropriate County/landfill staff to identify other areas of the cap system that appear to have suffered some degree of settlement, subsidence or erosion. Each area will be assessed and an appropriate repair method will be selected. This may be as minor as simply filling with appropriate soil material, compacting, regrading and grassing and mulching. Other areas may require more extensive regrading to reestablish the required lines and grades to ensure the proper runoff of surface water. Erosion protection matting may be required in some areas until the reestablishinent of a substantial vegetative cover has occurred. Drainage channels along the access roads will be reestablished to ensure proper coverage of waste material while still providing the necessary drainage patterns to control surface runoff and prevent the ponding of surface water on the landfill cap system. Various types of drainage channel armament and/or check dams or other types of erosion control devises may need to be installed to stabilize the channel and minimize further erosion until such time as a substantial vegetative cover is reestablished. Ms. Andrea Keller May 5, 2010 Page 4 The County acknowledges that certain areas of the closed MSW Landfill have been encroached upon by the uncontrolled growth of woody type vegetation. In certain areas this growth is of a type and/or size that may be mowable by a tractor pulled rotary type cutter/mower. The County is in the process of attempting to mow all accessible areas of the closed MSW Landfill cap system at this time. Other areas encroached upon by larger woody shrub/tree growth may require the expertise of a grading contractor in order to adequately remove the vegetation, associated stumps/root systems and repair the cap system to its original condition. The County proposes to include the more extensive vegetation removal as a part of the upcoming planned capital improvement project associated with the upgrading/relocation of the commercial entrance and citizen's convenience center. This project is proposed to be out for bid sometime during the summer of 2010 with work beginning late summer or early fall. The clearing and grubbing of the landfill cap system for the closed MSW Landfill would be stipulated as an initial project in the construction phase. The edge of waste (EOW) markers will be established and are addressed for the facility as a whole in a subsequent paragraph under General Comments. Landfill Gas Monitoring Plan — Please provide evidence that all facility structures have been monitored for LFG. If the LFG Monitoring Plan does not include all structures, or is out of date with current site activities and future plan, an updated LFG Monitoring Plan should be submitted during the next permit applicatioiz/ainendment/renewal cycle. The County is still in the process of reviewing their records to attempt to locate a Landfill Gas Monitoring Plan for the facility. The County has apparently located a loose copy of a Methane Gas Remediation Plan; however, this plan will need to be further reviewed and compiled into a readable format. While the County's subcontractor for the operation of the landfill gas extraction system has been collecting landfill gas readings from the known monitoring points, strategically located around the closed MSW Landfill, they apparently have not been monitoring the facility site structures. The existing site structures will be monitored and the readings recorded during the next scheduled landfill gas monitoring cycle — in particular the activity building, landfill office, scale house, landfill shop, transfer station structures and the Trace barn. Should the County not be able to locate a Landfill Gas Monitoring Plan in their records then a plan will be prepared and submitted during the next permit application/amendment/renewal cycle. Ms. Andrea Keller May 5, 2010 Page 5 The County has addressed the issue of LFG monitoring wells not properly capped, locked or labeled with their subcontractor responsible for operating the landfill gas extraction system. Monitoring points MP-5 and MP-6 have been capped and the other noted deficiencies will be promptly addressed. In addition, the six approved landfill gas monitoring points and the three remaining Trace property monitoring points will be fitted with a port system similar to that of the landfill gas extraction wells. During the site inspection, it was stated (W. Sagar) that groundwater monitoring wells had been screened for methane as part of an assessment activity pertaining to groundwater contamination at the site. Please provide the LFG data collected from this assessment activity to Ms. Drummond. The County is presently reviewing their records for this data. Should this information be found, it will be properly compiled and promptly submitted to Ms. Drummond. GENERAL COMMENTS: Edge of Waste Markers (EOW) The County proposes the following plan to establish the edge of waste for all disposal sites known to exist within the facility's property boundary. There are presently several drawings available that depict the general boundaries of the waste facilities. The County, with the assistance of their consultant, will review these drawings in conjunction with the latest aerial photography and prepare a single drawing depicting the best fit for areas known to contain waste material. This drawing will be submitted to the Department of Environment and Natural Resources (DENR) for general concurrence by June 15, 2010. Once general concurrence is received, the County intends to have the boundaries preliminarily staked in the field. The County's Staff, in conjunction with their consultant, will review the boundaries in the field and make any adjustments deemed appropriate due to actual field conditions. The waste boundaries will then be resurveyed as necessary to incorporate any adjustments and the data recorded on an updated site map drawing. The County intends to provide the DENR with an updated waste boundary map within forty- five (45) days of receipt of concurrence with the preliminary waste boundary map. The permanent EOW markers, meeting the requirements of the DENR, will be installed based upon the final determination of the waste boundaries. The existing wooden stakes that were erroneously placed to mark the edge of waste will be immediately removed. Ms. Andrea Keller May 5, 2010 Page 6 Beneficial Fill Area 15 NCAC 13B .0562 Beneficial Fill (1) states: the fill material consists only of inert debris limited to concrete, brick, concrete block, uncontaminated soil, rock, and gravel. While most of the material noted at the site conforms with the above -stated definition, this area is not considered a disposal site for solid waste and thus all non -conforming materials must be sorted and removed from this fill area for proper disposal The County will attempt to remove the visible and more readily accessible non- conforming materials from the beneficial fill area to include the painted block, rebar, porcelain and plastics. The removed items will be disposed of in an appropriately permitted disposal facility. Steps will be taken to more closely inspect incoming loads destined for the beneficial fill area to ensure non -conforming materials are not disposed of in this area. Future haulers of beneficial material waste will be required to remove non -conforming materials at the time of disposal for proper disposal in a properly pennitted disposal facility. Surface Water Drainage Path The Facility Compliance Audit Report noted a surface water drainage area between the closed MSW Landfill and the fill area listed as the 1982 Disposal Area that passes along the eastern border of the TVA landfill area as containing a buildup of surface waste. The cleanup of this area is presently being addressed by the landfill staff and should be completed within the next couple of weeks. April 28, 2010 Facility Compliance Audit Report, Areas of Concern and Comments Item No. 12: Conversations with the County and with Mr. Pasko indicated that the drainage ditch (detailed in comment #4 of the Closed MSWLF Comment section in the previous audit report) follows the inside of the LF access road until it reaches a point at which it can potentially discharge into surface water. As this drainage ditch has exhibited exposed waste and potential leachate seeps, the County must contact the Section Hydrogeologist (Jackie Drummond, 919-508- 8599) to discuss assessment activities in order to determine if leachate has left the MSWLF site. The County will be in contact with Ms. Drummond to discuss the situation and work with her to reach an agreeable course of action to determine if leachate, if any, has possibly migrated off the MSW Landfill site. Ms. Andrea Keller May 5, 2010 Page 7 Henderson County is sincere in their efforts to address the issues raised in the Facility Compliance Audit Report and will work diligently to correct the noted deficiencies. The County is intent on operating the facility in full compliance with all applicable rules and regulations. To facilitate this course of action, the County is presently advertising for the position of Solid Waste Manager. Once this position is filled, it will be their ongoing responsibility to ensure that the facility and all applicable records are maintained in an orderly fashion. Currently assistance with compliance assurance has been tasked to the Assistant County Engineer, Natalie Berry, PE. The County appreciates your consideration of their response to the deficiencies noted in the March 10, 2010 Facility Compliance Audit Report and should you have any questions or require additional information please give us a call. Sincerely, McGILL ASSOCIATES, P.A. WILLVanager Proje Enclosure cc: Mr. Marcus A. Jones, PE, Director, Henderson County Engineering and Facilities Services, w/enclosure Ms. Natalie J. Berry, PE, Assistant County Engineer, Henderson County, w/enclosure P:\2009\09.00728\Letters\10 0505 - A Keller - NOV Response.doe 1T o NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section UNIT TYPE: Lined LCID YW Transfer Compost SLAS COUNTY: HENDERSON MSWLF PERMIT NO.: 45-01 Closed X HHW White Incin T&P FMM MSWLF goods FILE TYPE: COMPLIANCE Closed X Closed X Asbestos X TVA X DEMO X SDTF CDLF CDLF atop Disposal Industrial Closed Area(s) Landfill MSWLF Date of Audit: 03/10/2010 FACILITY NAME AND ADDRESS: Henderson County Solid Waste Landfill Date of Previous Site Visit: 02/11/09, GPS COORDINATES: N: 35.35558, E:-82.49531 FACILITY CONTACT NAME AND PHONE NUMBER: Marcus Jones — Henderson Co. Director of Engineering 100 N. King Street Hendersonville, NC 28792 FACILITY CONTACT ADDRESS: Henderson County Solid Waste Transfer Facility 802 Stoney Mountain Road Hendersonville, NC 28971 (828) 697-4505 AUDIT PARTICIPANTS: Andrea Keller — DENR Solid Waste Section Bill Wagner— DENR Solid Waste Section Will Sagar — Henderson Co. Solid Waste Director Natalie Berry — Henderson Co. Asst. County Engineer Rebecca Coplin — Henderson County SW Dept. STATUS OF PERMIT: MSWLF Transition Plan Approval — November 13, 1995 MSWLF stopped receiving waste — December 31, 1997 MSWLF and C&DLF on top of closed MSWLF Closure Permit — April 11, 2006 C&DLF stand-alone PTO — October 4, 2001 C&DLF stand-alone — Inactive (waiting on formal closure letter from the Section) PURPOSE OF AUDIT: COMPREHENSIVE NOTICE OF VIOLATION(S): Closed stand-alone C&DLF 15A NCAC 13B .0531 Applicability (c) states: that Owners and operators of Cc&DLF facilities and units must conform to the requirements of Rules . 0531 through. 0547 of this Section as follows: C&DLF units permitted to FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 2 of 10 operate prior to January 1, 2007, and which do not receive solid waste after June 30, 2008, must comply with the Conditions of the Solid Waste Permit and Rule.0510 of this Section 15A NCAC 13B .0510 of this section requires that a disposal site be closed in accordance with rule. 0505 of this Subchapter. 15A NCAC 13B .0505(4)(a) states: Adequate erosion control measures shall be practiced to prevent excessive on -site erosion. 15A NCAC 13B .0505 (6)(a) states: Within six months after final termination of disposal operations at the site or a major part thereof or upon revocation of a permit, the area shall be stabilized with native grasses. During the comprehensive inspection it was determined that the stand-alone closed C&DLF exhibited excessive rills, discharge, and uncovered waste with little to no stabilization with native grasses. See items 1, 2, and 3 noted below in the Areas of Concerns and Comments section. Henderson County is in violation of 15A NCAC 13B .0505(4)(a) for failure to prevent excessive on -site erosion at the stand-alone C&DLF unit. Henderson County is in violation of 15A NCAC 13B .0505(6)(a) for failure to stabilization the site with native grasses within six months of final termination of disposal operations. In order to achieve compliance, Henderson County must, by June 4, 2010, correct the settlement, subsidence, erosion, and vegetation requirements at the C&DLF unit. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. Closed MSWLF 15A NCAC 1313.1627 (d) Post -closure criteria (1)(A) states: Maintaining the integrity and effectiveness of any cap system, including making repairs to the cover as necessary to correct the effects of settlement, subsidence, erosion, or other events, and preventing run-on and run-off from eroding or otherwise damaging the cap system; During the comprehensive inspection it was determined that the MSWLF with a C&DLF on top exhibited erosion rills, discharge, and uncovered waste. The surface water drainage in the drainage ditch, as it passes through solid waste, is considered leachate and must be treated accordingly. Additionally, woody tree growth was established on the lower slopes of the MSWLF. See items 2 and 4 noted below in the Areas of Concerns and Comments section. Henderson County is in violation of 15A NCAC 13B .1627(d)(1)(A) for failure to maintain the integrity and effectiveness of the closed MSWLF cap system. In order to achieve compliance, Henderson County must, by May 7, 2010, submit a plan to the Section detailing how the County intends to achieve compliance regarding the settlement, subsidence, erosion, and woody vegetation at the closed MSWLF unit and the closed C&DLF unit atop the MSWLF unit. This plan must include a reasonable timeline for corrective actions. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. You are hereby advised that, pursuant to N.C.G.S. 130A-22, an administrative penalty of up to $15,000 per day may be assessed for each violation of the Solid Waste Statute or Regulations. For the violation(s) noted here, you may be subject to enforcement actions including penalties, injunction from operation of a solid waste management facility or a solid waste collection service and any such further relief as may be necessary to achieve compliance with the North Carolina Solid Waste Management Act and Rules. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 3 of 10 STATUS OF PAST NOTED VIOLATIONS: NONE AREAS OF CONCERN AND COMMENTS: GENERAL COMMENTS: 1. On site to conduct comprehensive audit of the closed MSWLF, closed C&DLF located on top of the closed MSWLF, and the inactive stand-alone C&DLF (awaiting formal closure from the Section). In addition to these three fill areas, the following fill activities are located within the facility boundary (a 1992 Gas Monitoring Probe Location Map, sheet one; a 1992 Base Area Existing Solid Waste Disposal Facility map, sheet 1; and a 1993 Site Plan Proposed Final Contours/Existing Contours sheet 2): a. Closed TVA Disposal Area (1978) b. Closed Disposal Area 1982 Permit c. Demolition Landfill (inactive) d. Asbestos disposal site (inactive) e. Asbestos disposal site (proposed) Asbestos Disposal Site v` partial 1992 site map Closed Demolition Landfill Area of Closed stand-alone C&DLF KWYl4SSiet3'.'r4'..:?i. 1�1f Closed NA Disposal Area FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 4 of 10 2. Future site maps submitted to the Section, including proposed site plans regarding the new Transfer Station, access roads, Material Recovery Facility, and convenience center drop off locations should indicate all site fill areas in relation to the proposed activities. In addition, per the memorandum dated May 29, 2009 (Subject: Permanent Edge -of -Waste Markers at Construction and Demolition Debris Landfill, Industrial Solid Waste Landfills, and Municipal Solid Waste Landfills), owners and operators of all active, inactive and closed landfill units should install and maintain permanent edge -of -waste (EOW) markers for all landfill units. (See attached memo). Further discussion regarding EOW issues are found below. 3. In addition to the above -noted fill activities, there is an active beneficial fill area located south of the current white goods area (governed under the 45-04T permit). The beneficial fill area must be controlled in order to 03/10/2010 photos MI.: painted block, rebar, porcelain and some plastics were noted. 15A NCAC 13B .0562 Beneficial Fill (1) states: the fill material consists only of inert debris limited to concrete, brick, concrete block, uncontaminated soil, rock, and gravel. While most of the material noted at the site conforms with the above -stated definition, this area is not considered a disposal site for solid waste and thus all non -conforming materials must be sorted and removed from this fill area for proper disposal. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 5 of 10 4. Surface water runs between the closed MSWLF and the fill area listed at 1982 Disposal Area (may also be MSWLF), and then passes along the east border of the TVA 1978 fill area. This drainage/creek area appears to have a build up of surface waste (metals and plastics), windblown material, and/or possible uncovered waste (unable to determine fill areas on older, closed fill units as there are no EOW markers in place). 03/10/2010 photo #2 This material should be removed for proper disposal as this activity could be considered the establishment of an illegal open dump site. It is recommended that this clean up be conducted before visibility is lost due to vegetation growth over the spring/summer months. INACTIVE (stand-alone) C&DLF COMMENTS: The stand-alone C&DLF had met closure requirements at the time of the required engineering submittal. However, in the months following this documentation of final cap thickness and grading at the closed C&DLF the landfill unit cap has suffered considerable erosion and slumping. 1. The erosion ditch pictured below had exposed waste and appeared to be outside of the existing EOW markers in place at the C&DLF. This may be due to erosion of a previous fill area, or of transport of waste off the 2. EOW markers will need to be re-established for the closed C&DLF. The wooden stakes currently in place are not stable. It is recommended that EOW markers be: visible in line of site from marker to marker, made of materials able withstand the elements, and labeled `BOW" or similar. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 6 of 10 0/10 EOW markers 3. Slumping was visible on the southwestern slope of the landfill. Additionally, several leachate seeps were noted. This area requires soil cover and vegetation for erosion control. The leachate seeps appeared to stay within the footprint of the C&DLF but this issue should be investigated by the county to verify. 03/10/10 4. The access road on the C&DLF is slumping and eroding and the ground cover appears unstable (visible cracking). The EOW markers are on the outside edge of the access road are being pushed along with the 03/10/10 Items 1, 2 and 4 need to be addressed as required in the Notice of Violation section within this audit report. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 7 of 10 CLOSED MSWLF COMMENTS: The closed MSWLF footprint is considerably larger than the current area marked with EOW markers. Correct the EOW markers as soon as possible. Due to the planned site construction activities, and with reference to the attached memorandum regarding EOW markers, a survey of EOW should be conducted for all fill areas. 2. The access road located on the MSWLF waste fill area (leading up to the white goods, closed C&DLF, and grinding operation areas) currently shows EOW markers to the "outside" or left of the road (see photo below). Per Mr. Sagar and site maps referenced earlier, the EOW is actually 100-300' past these EOW markers. In this region, significant vegetation has taken root. This area must be accessible, mowed regularly, and must not contain any woody vegetation (trees). 03/10/10 photo #3 While the MSWLF was closed under the .1600 Rules and the C&DLFs, Demolition LF, and TVA disposal area were closed under the .0500 Rules, all Areas must meet the Post -Closure General Condition stated in the permit such that the owner or operator shall maintain the integrity and effectiveness of any cap system. The woody/tree growth is encroaching upon the cap system. As these types of root systems will most likely extend beyond the erosion layer into the impermeable layer of the cap (thus destroying the integrity of the cap system and creating a path for water into the landfill), and as trees both inhibit the proper mowing and necessary maintenance of the cap while impeding on the ability to visually inspect the cap integrity, this woody shrub/tree growth must be eliminated. Any stumps and root systems of larger trees must be removed and the cap system repaired. 3. The closed MSWLF Post -Closure Conditions (April 11, 2006) in the Letter of Closure and the .1600 Rules are the governing regulations for this landfill unit. The list of Approved Documents includes Closure Plans, Post - Closure Use Plan, Methane Gas Remediation Plan, and a Ground Water Corrective Action Plan. During the next scheduled site visit, the Section wishes to review these documents, in particular Part C: Methane Gas Remediation Plan — please have this available at the landfill at the time of the site inspection. 4. The closed MSWLF has a drainage ditch running on the "inside" of the access road. This drainage ditch exhibited erosion to the extent that solid waste was exposed and the landfill cap exhibited erosion such that rills had formed and discharge was draining into the drainage ditch. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 8 of 10 03/10/10 Rills/discharge from landfill into drainage ditch, photos #4 Drainage ditch/waste #5 03/10/10 Post Closure General Condition #2 states that the owner or operator shall maintain the integrity and effectiveness of any cap system, including making repairs to the cover as necessary to correct the effects of settlement, subsidence, erosion, or other events, and preventing run-on and run-off from eroding or otherwise damaging the cap system. Item number 2 and 4 need to be addressed as required in the Notice of Violation section within this audit report. The seepage/leachate release issue must be addressed immediately to ensure that leachate does not leave the site. 5. The groundwater monitoring data was available and currently under review by the Section hydrogeologist. The landfill gas (LFG) monitoring plan was unavailable at the time of the audit. However, the collected data was available. Henderson County utilizes Enerdyne for maintenance of the gas extraction system and for the collection of LFG monitoring data. While monitoring data was available for review, due to the lack of a Plan it was difficult to determine the following: Number of wells and location of wells, whether the methane data was in %Volume or % LEL, and what the other data points on the spreadsheet represented (structures on/off property?). Additionally, two of the LFG monitoring wells located on the north side of the property (in the region where, historically, methane migration had occurred) were not capped, locked, or labeled. FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 9 of 10 03/10/10 LFG Monitoring well. #6 7. No data was available that appeared to represent monitoring in the facility site structures (office buildings, scale house, etc.) as required in both Rule and in Closure Condition #12: The owner or operator shall maintain and operating the gas monitoring system to ensure that: (a) The concentration of methane gas generated by the facility does not exceed 25% of the lower explosive limit for methane in facility structures (excluding gas control or recovery system components); and (b) The concentration of methane gas does not exceed the lower explosive limit for methane at the facility property boundary. Please provide evidence that all facility structures have been monitored for LFG. If the LFG Monitoring Plan does not include all structures, or is out of date with current site activities and future plan, an updated LFG Monitoring Plan should be submitted during the next permit application/amendment/renewal cycle. 8. During the site inspection, it was stated (W. Sagar) that groundwater monitoring wells had been screened for methane as part of an assessment activity pertaining to groundwater contamination at the site. It was also stated that the %Vol of methane in at least one of these wells was >35% methane. Depending on the actual readings and the location of this well(s), this information should have been immediately communicated to the Section hydrogeologist (Jaclynne Drummond, 919-508-8500) to determine a potential course of action. Per Closure Condition # 13: If methane gas levels exceeding these limits are detected, the owner or operator must take all steps required in Rule .1642(4)(c). Methane gas remediation plans approved by the Division are described in the list of Approved Documents, Attachment 1, Part C. Please provide the LFG data collected from this assessment activity to Ms. Drummond. Please contact me if you have any questions or concerns regarding this audit report. Phone: (828) 296-4700 Andrea Keller Environmental Senior Specialist Regional Representative Mailed on: 04/08/10 by Hand delivery US Mail Certified No. 17006 2150 0005 245 8 92281 ec: Mark Poindexter, Field Operations Branch Supervisor Deb Aja, Western District Supervisor FACILITY COMPLIANCE AUDIT REPORT Division of Waste Management Solid Waste Section Page 10 of 10 Donald Herndon, Compliance Officer Larry Frost, Permit Engineer Jaclynne Drummond, Section Hydrogeologist Natalie Berry, Assistant County Engineer: nbeM�nheiidei-soncouiiiyiic.org Steve Wyatt, County Manager: swyattcuhendersoncountync.or), Rebecca Coplin, Admin. Asst. Solid Waste Division: rcoplin e,hendersoncount.�ny c.org