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Home My WebLink About8803_INSP_20200128NORTH CAROLI D_EQ�� OepnMiml of Enrlrommenlal Ounl� FACILITY COMPLIANCE INSPECTION REPORT Division of Waste Management Solid Waste Section UNIT TYPE: Lined LCID YW Transfer Compost SLAS COUNTY: TRANSYLVANIA MSWLF PERMIT NO.: 8803-MSWLF-1975 Closed X HHW White Incin T&P FIRM MSWLF goods FILE TYPE: COMPLIANCE CDLF TireT&P/ Tire Industrial DEMO SDTF Collection Monofill Landfill Date of Site Inspection: 01/28/2020 FACILITY NAME AND ADDRESS: Transylvania County Landfill 163 Old Calvert Rd Brevard, NC 28712 Date of Last Inspection: 02/04/2019 GPS COORDINATES: N: 35.157995o W: 82.815017' FACILITY CONTACT NAME AND PHONE NUMBER: Name: Kenn Webb, Transylvania County Solid Waste Director Telephone: 828-884-6830 Email address: kenn.webb@transylvaniacounty.org FACILITY CONTACT ADDRESS: 500 Howell Rd Brevard, NC 28712 PARTICIPANTS: Kenn Webb, Transylvania County Dwayne "Smitty" Smith, Transylvania County Lee Hill, NCDEQ — Solid Waste Section STATUS OF PERMIT: Closure Letter issued for Permit #88-03 on December 21, 1995 PURPOSE OF SITE VISIT: Comprehensive Inspection STATUS OF PAST NOTED VIOLATIONS: A. CORRECTIVE ACTIONS IN PROGRESS:I5A NCAC 13B .0503(2)(a)(ii) states: "A site shall meet the following design requirements: The concentration of explosive gases generated by the site shall not exceed the lower explosive limit for the gases at the property boundary." Transylvania County has implemented the approved Landfill Gas Remediation Plan. Landfill gas monitoring data suggests that landfill gas levels are decreasing but are still exceeding 100% of the lower explosive limit in some wells. Additional measures may be required, should the plan fail to reduce landfill gas levels at the facility boundary. B. CORRECTIVE ACTIONS IN PROGRESS:I5A NCAC 13B .0203(d) states: `By receiving solid waste at a permitted facility, the permittee(s) shall be considered to have accepted the conditions of the permit and shall comply with conditions of the permit." The facility received a closure letter from the Solid Waste Section [Section] on December 21, 1995 which stated post closure conditions. Page 1 of 5 FACILITY COMPLIANCE INSPECTION REPORT Division of Waste Management NORTH CAROLINA Solid Waste Section The closure letter Post Closure Condition 1 states: "MANAGEMENT OF LANDFILL GAS: The owners shall take the measures necessary to ensure that the closed site shall continue to meet the design standards for landfill gas found in Rule .0503(2)(a)." Transylvania County has implemented the approved Landfill Gas Remediation Plan. Landfill gas monitoring data suggests that landfill gas levels are decreasing but are still exceeding 100% of the lower explosive limit in some wells. Additional measures may be required, should the plan fail to reduce landfill gas levels at the facility boundary. OBSERVED VIOLATIONS: None The item(s) listed above were observed by Section staff and require action on behalf of the facility in order to come into or maintain compliance with the Statutes, Rules, and/or other regulatory requirements applicable to this facility. Be 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 Laws, Regulations, Conditions of a Permit, or Order under Article 9 of Chapter 130A of the N.C. General Statutes. Further, the facility and/or all responsible parties may also 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. ADDITIONAL COMMENTS 1. All photos were taken by Lee Hill on January 28, 2020. 2. Water quality reports from the October 16-17, 2018, November 29, 2018, and April 22-23, 2019 sampling events were reviewed and the reports were sent to the section for review. 3. Results from the October 17, 2016 landfill gas monitoring revealed exceedances above the LEL in three wells: GP-3 (308% of LEL), GP-8 (302% of LEL) and GP-9 (1204% of LEL). These exceedances prompted the section to require a Landfill Gas Remediation Plan for the facility. On February 15, 2017, Joyce Engineering submitted a "Proposed Remediation Strategy" on behalf of Transylvania County. This plan included installing two new probes to replace existing probes GP-6 and GP-8 and quarterly monitoring for one year to determine if gas was migrating off site. On March 6, 2017, the Section approved the interim remedial measure under the condition that Transylvania County would submit a new landfill gas remediation plan if concentrations exceed the LEL for two consecutive quarterly monitoring events in either of the new landfill gas probes. The facility conducted monthly landfill gas monitoring from May 2017 to October 2017 in GP-6R and GP-8R which all exceeded the LEL. On October 19, 2017, Joyce Engineering submitted a Landfill Gas Remediation Plan which proposed installing two new landfill gas probes to replace GP-4 and GP-12. On December 6, 2017, the Section did not approve the plan and instead required Transylvania County to submit a Landfill Gas Remediation plan to reduce the methane concentrations below the LEL in GP-6R and GP-8R. On December 11, 2017, a revised Landfill Gas Remediation Plan was submitted and was approved by the Section on January 10, 2018. The approved plan included installing two new monitoring probes GP-4R and GP- 12R to replace GP-4 and GP-12. The monitoring data from the new and existing wells would be used to design a landfill gas intercept trench. On June 25, 2018, Joyce Engineering submitted details to the Section for the proposed landfill gas intercept trench and it was approved on June 26, 2018 with the following conditions: "Trench installation shall be completed within 60 days of this approval; LFG monitoring shall be conducted within 30 days of trench installation; a progress report on the installation and initial monitoring shall be submitted within 15 days of the initial monitoring; quarterly LFG monitoring shall be conducted thereafter on the normal schedule for the facility; and, a LFG Corrective Action update report evaluating the effectiveness of the trench to reduce methane levels to acceptable levels shall be submitted to the Section after one year of operation." During the construction of the intercept trench, random pockets of waste were found in the top two to three feet below the cover soil. On August 9, 2018, a sixty-day extension for construction of the landfill gas intercept trench was requested and approved. The random pockets of waste that were encountered during the construction of the trench were taken to the Transylvania County Landfill (8807-MSWLF-1992) for disposal. The trench was completed on September 26, 2018, thus allowing the county Page 2 of 5 NORTH CAROLI D_EQ�� UeVnNnenl of Enrtmmenbl Ouel� FACILITY COMPLIANCE INSPECTION REPORT Division of Waste Management Solid Waste Section to proceed with the other steps approved in the Landfill Gas Remediation Plan. The sampling events that have occurred since the installation of the trench have shown a decrease in landfill gas levels; however, exceedances of the lower explosive limit are still occurring in some wells. 4. The facility is secured by a gate which is located at the Calvert Road Convenience Site. 5. Good vegetative cover was established on the cap of the landfill. The landfill had been mowed in June 2019 by facility staff. 6. Woody vegetation and briars were observed growing on the southwest side of the landfill cap. Remove the briars and woody vegetation from the side slope of the landfill. 7. Two edge of waste markers (one marker on the east side of the landfill near the old maintenance building and one near the landfill gas intercept trench) had been knocked down during the mowing of the landfill. Repair or replace the displaced markers. 8. Monitoring wells GP12-R, GP-6R and GP-4R were observed to be locked at the time of inspection. Please contact me if you have any questions or concerns regarding this inspection report. Digitally signed by Lee Hill DN: cn=Lee Hill, o=Solid Waste Section, ou=Field Operations Branch, email=lee.hill@ncdenr.gov, c=US Date: 2020.02.0411:40:36-05'00' Phone: 828-296-4700 Lee Hill Environmental Senior Specialist Regional Representative Sent on: February 4, 2020 to X Email Hand delivery US Mail Certified No. fI Kenn Webb by Copies: Deb Aja, Western District Supervisor — Solid Waste Section Dwayne "Smitty" Smith, Landfill Coordinator — Transylvania County Jaime Laughter, County Manager — Transylvania County David McNeill — Assistant County Manager — Transylvania County Perry Sugg, Hydrogeologist — Solid Waste Section Page 3 of 5 of x• -.AS .�I yil a I'an lynx' AA '.r. �•��,'��a1� Ali � , �� 1 i�� nZ 4-;1HCA�INA Department pl Environmental Ouali� FACILITY COMPLIANCE INSPECTION REPORT Division of Waste Management Solid Waste Section Briars and Woody Vegetation Growing on Side Slope Page 5 of 5