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HomeMy WebLinkAbout5002_JacksonCounty_MSWLF_CDLF_May24LFG_FID1897487_20240917Anchor QEA of North Carolina, PLLC ANCHOR 231 Haywood Street 0EA Asheville, North Carolina 28801 828.281.3350 September 13, 2024 Transmitted via email to chadporker@jacksonnc.org Chad Parker Director Jackson County Solid Waste Department 876 Skyland Drive Sylva, North Carolina 28779 Re: 2024 Second Quarter Landfill Gas Screening Jackson County Closed Municipal Solid Waste Landfill Dear Mr. Parker, Attached are the quarterly landfill gas measurements collected at the Jackson County Closed Municipal Solid Waste Landfill (Permit No. 50-02) on May 7, 2024, by Anchor QEA of North Carolina, PLLC. These measurements were taken from the headspace of the landfill gas probes (GPs) near the perimeter of the landfill (Figure 1) and from the air space at various locations within the County Transit Office, Green Energy Park buildings (Figures 2 and 3), and the Animal Rescue Center (Figure 4) in accordance with the Landfill Gas Monitoring Plan.' Landfill Gas Probe Monitoring Measurements from 27 GPs were collected with a GEM5000 landfill gas monitor (Table 1). This device records percent methane by volume, as well as the measured percentage of methane's lower explosive limit (LEL), percent carbon dioxide by volume, and percent oxygen by volume. The following list summarizes the findings of the current round of measurements (second quarter of 2024) collected from the GPs (Table 1): • Methane was detected in one GP (GP-05) at a concentration of 13.5%, which is greater than the 5% limit for methane. • Methane concentration readings were 0.0 or 0.1% in the remaining GPs that were monitored. The methane concentration at GP-05 was 4.5% during the November 2023 monitoring event and was not detected during the February 2024 monitoring event. Anchor QEA (Anchor QEA of North Carolina, PLLC), 2017. Landfill Gas Monitoring Plan. Prepared for Jackson County Solid Waste Department. May 2017. \\WCL-FS1\Asheville\Projects\Jackson County\01_Landfill Gas`Quarterly Reports\2024\Q2_May\Text\May 2024 Landfill Gas Screen ing_Jackson County Closed MSW Landfill.docx September 13, 2024 Page 2 Anchor QEA understands that efforts are made by the County to ensure the extraction system remains on when methane is not being used by the Green Energy Park, which may result in lower observed methane concentrations in the landfill. Ambient and Indoor Air Quality Monitoring The County Transit Office (Sample IDS 1 through 9 in Table 2 and Figure 2), Green Energy Park buildings (Sample IDS 1 through 6 and 8 through 14 in Table 3 and Figure 3), and Animal Rescue Center (Sample IDS A through P in Table 4 and Figure 4) were screened for volatile organic vapor compounds using a Foxboro Toxic Vapor Analyzer 1000 Flame Ionization Detector (FID), with and without an activated charcoal filter. The FID readings performed with the charcoal filter allow methane concentrations to be determined by filtering out other organic vapors. For the Green Energy Park buildings, the highest filtered organic vapor concentration reading (representing the methane concentration) was -1.95 parts per million (ppm), measured under the sink in the Green Energy Park bathroom (Sample ID 6; Table 3). Note that near -zero negative readings on the FID can occur when the instrument is calibrated in ambient air containing a slight amount of volatile organic compounds. Based on the relatively large action level of 12,500 ppm for methane (25% of methane's LEL2), these occurrences are considered non -consequential. For the transit office, the cabinet space in the women's restroom contained the highest filtered organic vapor concentrations of 3.25 ppm (Sample ID 2; Table 2). For the animal shelter, the highest filtered organic vapor concentrations of methane detected was -1.31 ppm in the laundry room behind the washer unit (Sample ID J; Table 4). Screening measurements at the County Transit Office, Green Energy Building, and Animal Rescue Center building continue to yield methane concentrations well below the action level of 25% of methane's LEL (12,500 ppm3). All methane concentrations measured during the May 2024 event were well below action levels, except for the 13.5% methane concentration measured in GP-05, which is greater than 100% of the LEL for methane (5%). Methane will be measured and reported during the next quarterly landfill gas monitoring event scheduled for August 2024. z Anchor QEA 2017. a Anchor QEA 2017. September 13, 2024 Page 3 Please feel free to call me at (919) 880-3137 or email me atjvolker@anchorqea.com with any questions or comments. Sincerely, Jason Volker, PE, LSS Managing Engineer cc: Timm Muth, Green Energy Park Attachments Table 1 Quarterly Landfill Gas Probe Readings Table 2 County Transit Office — Organic Vapor Analyzer Screening Worksheet Table 3 Green Energy Park Buildings — Organic Vapor Analyzer Screening Worksheet Table 4 Animal Rescue Center — Organic Vapor Analyzer Screening Worksheet Figure 1 Gas Probe Location Map Figure 2 Methane Monitoring Locations — County Transit Office Figure 3 Methane Monitoring Locations — Green Energy Park Buildings Figure 4 Methane Monitoring Locations — Animal Rescue Center Tables Table 1 Quarterly Landfill Gas Probe Readings Name of Person Taking Reading: T. Arrowood Date: 5/7/2024 Weather Conditions: Mostly cloudy Ambient Temperature (°F): 65' Gas Monitoring Equipment: GEM5000 Plus Serial Number: G506450 LFG Probe Time % CH4 % CO2 % Oz Calculated LEL (% LEL) Probe Pressure or Vacuum (inches of H20) Comments Exceedance limit: 5.0 -- -- 100 GP-01A 12:53 0.0 0.9 20.0 0.0 0.06 GP-02 13:01 0.0 1 3.1 17.3 1 0.0 0.07 GP-03 13:09 0.0 3.1 17.7 0.0 0.07 GP-04 13:14 0.0 1.0 20.1 0.0 0.04 GP-05 12:02 13.5 5.5 0.4 > 100 -1.44 GP-06 10:53 0.1 1.6 18.3 2.0 -0.03 Missing casing lid and lock GP-07 11:02 0 1.7 17.5 0.0 1.16 GP-08 11:34 0.0 1.4 17.4 0.0 0.03 Casing buried in dirt and debris GP-09 11:19 0.1 0.7 19.1 2.0 0.03 Broken casing lid, buried in dirt and debris GP-10 14:07 0.0 0.1 21.3 0.0 0.09 GP-11s 13:43 0.0 0.5 20.5 0.0 0.07 GP-11 i 13:41 0.0 0.8 20.2 0.0 0.16 GP-11d 13:38 0.0 0.4 20.6 0.0 -0.6 GP-12s 13:28 0.0 0.4 20.6 0.0 0.06 GP-12i 13:23 0.0 1.8 18.9 0.0 0.15 GP-12d 13:26 0.0 0.7 20.0 0.0 0.08 Probe requires new valve and barb GP-12d-1 13:21 0.0 1.1 19.4 0.0 0.28 GP-14s 10:31 0.1 1.4 19.4 2.0 -0.04 GP-14d 10:33 0.1 4.6 16.5 2.0 -0.02 GP-15s 10:40 0.1 3.1 16.1 2.0 -0.01 GP-15i 10:43 0.1 10.4 3.6 2.0 0.04 Water in casing GP-15d 10:38 0.1 2.6 16.8 2.0 0 GP-17 11:44 0.0 0.2 20.8 0.0 0.02 GP-18 11:47 0.0 0.4 20.4 0.0 0.04 GP-19 12:39 0.0 6.0 14.8 0.0 0.07 GP-20 12:26 0.0 0.2 20.7 0.0 0.03 GP-21 12:32 0.0 1.0 19.9 0.0 0.06 Notes: All measurements were collected with the intake hose of a GEM5000 Plus landfill gas analyzer at the barbed nipple on the wellhead of the gas probes, unless otherwise noted. All gas probes were purged for a minimum of 30 seconds before readings LFG Probes GP-13d and GP-13s were removed during first quarter 2021 construction; GP-20 and GP-21 installed 1/3/24 CH4: methane CO2: carbon dioxide DNM: did not measure, equipment error H2O: water LEL: lower explosive limit 02: oxygen 2024 Second Quarter Landfill Gas Screening Page 1 of 1 Jackson County Closed Municipal Solid Waste Landfill September 2024 Table 2 County Transit Office - Organic Vapor Analyzer Screening Worksheet Name of Person Taking Readings: J. Mayers Date: 5/7/2024 Time: 10:07 Sample ID Analysis Unfiltered Tip Total VOC (ppm) Charcoal Filtered Tip Methane (ppm) Sample Description Exceedance limit: 12,500 Ambient air PID -0.27 -0.62 Parking lot FID -0.51 -2.82 Sharpie lid PID 19.76 -0.15 Parking lot FID 208.00 -2.69 1 PID -0.03 0.00 Men's restroom (cabinet space) FID 1.04 -2.92 2 PID 0.36 0.59 Women's restroom (cabinet space) FID -3.13 3.25 3 PID -0.02 0.02 Near front corner of building (office) FID 0.95 -3.05 4 PID 0.00 0.08 IT room FID 0.98 -3.18 5 PID -0.09 0.00 Near former plumbing drain FID -2.98 0.87 6 PID -0.01 0.11 Steel support beam FID -0.13 -3.23 7 PID -0.07 -0.04 Conduit at steel support beam FID -0.13 -3.31 8 PID 0.00 0.00 Conduit at steel support beam FID -0.10 -3.18 9 PID -0.09 -0.17 Near former floor drain (now carpeted conference room) FID 0.95 -2.87 Notes: PIDread ings not collected due to malfunctioning component in the TVA-1000 unit. FID: flame ionization detector PID: photoionization detector ppm: part per million VOC: volatile organic compound 2024 Second Quarter Landfill Gas Screening Page 1 of 1 Jackson County Closed Municipal Solid Waste Landfill September 2024 Table 3 Green Energy Park Buildings - Organic Vapor Analyzer Screening Worksheet Name of Person Taking Readings: J. Mayers Date: 5/7/2024 Time: 09:40 Sample ID Analysis Unfiltered Tip Total VOC (ppm) Charcoal Filtered Tip Methane (Ppm) Sample Description Exceedance limit: 12,500 Ambient air PID -0.27 -0.62 Outside of buildings FID -0.51 -2.82 Sharpie lid PID 19.76 -0.15 Outside of buildings FID 208.00 -2.69 1 PID -0.15 -0.22 Stained glass area (crack in floor) FID -0.80 -3.05 2 PID -0.16 -0.13 Blacksmith bathroom FID -0.60 -3.17 3 PID -0.10 -0.14 Crack in floor (blacksmith shop area) FID -0.62 -3.22 4 PID -0.13 -0.11 Seam in floor (blacksmith shop area) FID -0.66 -3.22 5 PID -0.12 -0.09 Storage room in back of blacksmith shop FID -0.88 -3.31 6 PID 0.13 -0.15 Bathroom (under sink) FID 7.16 -1.95 8 PID -0.41 0.00 Corner of gallery (back right from entry door) FID -0.65 -3.21 9 PID -0.46 -0.16 Corner of gallery (back left from entry door) FID -0.58 -3.06 10 PID -0.01 -0.18 Corner of kiln room (back left from entry door) FID 1.60 -2.79 11 PID -0.04 -0.28 Crack in floor of kiln room FID 1.31 -2.58 12 PID -0.12 -0.09 Seam in floor of glass studio, farthest from bay door FID -0.34 -3.15 13 PID -0.16 -0.11 Crack in floor of glass studio FID -0.59 -3.11 14 PID -0.11 -0.06 Seam in floor of glass studio, closest to bay door FID -0.67 -3.13 Notes: PID readings not collected due to malfunctioning component in the TVA-1000 unit. Sample IDs 7 and 15 were removed during first quarter 2021 construction. FID: flame ionization detector NM: not measured PID: photoionization detector ppm: part per million VOC: volatile organic compound 2024 Second Quarter Landfill Gas Screening Page 1 of 1 Jackson County Closed Municipal Solid Waste Landfill September 2024 Table 3 Animal Rescue Center - Organic Vapor Analyzer Screening Worksheet Name of Person Taking Readings: T. Arrowood Date: 5/7/24 Time: 0911 Sample ID Analysis Unfiltered Tip Total VOC (ppm) Charcoal Filtered Tip Methane (ppm) Sample Description Exceedance limit: 12,500 Ambient air PID -0.27 -0.62 Outside of buildings FID -0.51 -2.82 Sharpie lid PID 19.76 -0.15 Outside of buildings FID 208.00 -2.69 A PID -0.23 -0.28 Room 127 Floor drain FID -0.31 -3.03 B PID -0.29 -0.27 Room 126 FID -0.02 -2.85 C PID -0.28 -0.21 Hall Sink FID 0.25 -2.59 D PID -0.39 -0.20 Room 125 floor drain (dog grooming room) FID 0.07 -3.03 E PID -0.36 0.00 Break room FID 2.40 -2.62 F PID -0.43 -0.19 Staff bathroom floor drain FID 2.98 -2.52 G PID -0.17 -0.18 Water line (yard hose fitting in wall) FID -0.36 -2.82 H PID -0.11 -0.17 Water line (yard hose fitting in wall) FID -0.40 -3.12 I PID -0.43 -0.33 Industrial sink, sink drain FID 2.95 -2.59 J PID -0.45 -0.15 Laundry room, behind washer unit FID 6.26 -1.31 K PID -0.29 0.46 Room 113, custodian room floor drain FID 0.62 -2.74 L PID -0.54 0.53* Bathroom; floor drain FID 0.20 -3.10 M PID -0.52 -0.20 Bathroom; floor drain FID 0.41 -2.92 N PID -0.46 -0.23 Hallway sink drain FID 0.66 -2.62 O PID -0.41 -0.35 Boiler room, ambient reading FID 2.42 -2.36 F-P PID -0.40 0.58 Water fountain FID 0.43 -3.07 Notes: PID readings not collected due to malfunctioning component in the TVA-1000 unit. Sample IDs 7 and 15 were removed during first quarter 2021 construction. FID: flame ionization detector NM: not measured PID: photoionization detector ppm: part per million VOC: volatile organic compound 2024 Second Quarter Landfill Gas Screening Page 1 of 1 Jackson County Closed Municipal Solid Waste Landfill September 2024 Figures n Publish Date: 2024/06/12, 4:18 PM I User: emueller Filepath:\\GSTFile01\GIS\Jobs\JacksonCounty-NC-1480\Maps\2022\Figure 1 - Methane Monitoring Locations.mxd lszANCHOR QEA P 1 f t� - i GP-07 � f S GP 17 GP-15S,, GP=151- �° Green Energy Park 1 } GP-13D +' GP-13S County Transit Office own LEGEND: Gas Probe Location Former Gas Probe Location Landfill Gas Extraction Well Jackson County Property Boundary Stream Road Elevation Contours (20-Foot Interval) NOTE: 1. Gas probe locations are approximate SOURCES: 1. Aerial Imagery: NC OneMap 2020 2. Roads and Streams: Jackson County GIS 3. Topographic Contours: NCDOT Lidar 2007 0 0 200 R Feet Figure 1 Gas Probe Location Map Landfill Gas Screening Jackson County Closed Municipal Solid Waste Landfill EQUIPMENT STORAGE ry Ul HAYWOOD ROAD SOURCE: Drawing prepared based on visual inspection during site visit. NOTES: 1. This figure is for informational purposes and is not NOT TO SCALE intended to serve as an evacuation plan. 2. Numbers indicate monitoring locations. Publish Date: 2021/08/16 10:36 PM I User: cpatterson Filepath: A:\Projects\Jackson County\Dillsboro LFG\Figures\CAD\2021 Green Energy Bldg LFG Monitoring Locations Bentley.dwg AQ-A-Land ANCHOR Figure 2 Q Methane Monitoring Locations - County Transit Office Z Landfill Gas Screening Jackson County Closed Municipal Solid Waste Landfill GREEN ENER 6 2 5 14 13 12 GLASS STUDIO 3 BLACKSMITH 9 8 SHOP 11 STAINED GLASS 4 KILN GALLERY 1 10 SOURCE: Drawing prepared based on visual inspection during site visit. NOTES: 1. This figure is for informational purposes and is not intended to serve as an evacuation plan. 2. Numbers indicate monitoring locations. Publish Date: 2020/11/17 5:18 PM I User: cpatterson Filepath: \\asheville1\asheville\Projects\Jackson County\Dillsboro LFG\Figures\CAD\2020 Green Energy Bldg LFG Monitoring Locations.dwg AQ-A-Land ANCHOR Figure 3 (� Methane Monitoring Locations - Green Energy Park Buildings Z Landfill Gas Screening Jackson County Closed Municipal Solid Waste Landfill 0 N M P I I L I I JF9 K - I I � I I I F E ti I e� j 11- L� D LL B 17 JC A r. i H I� � I I G * a SOURCE: Drawing prepared based on fire escape plan provided by County and visual inspection during site visit. NOTES: NOT TO SCALE 1. This figure is for informational purposes and is not intended to serve as an evacuation plan. 2. Letters indicate monitoring locations. Filepath: \\WCL-FS1\Asheville\Projects\Jackson County\01 Landfill Gas`Quarterly Reports\2023\Q3 August\Figures\Figure 4 - Animal Rescue Center Monitoring Locations.docx kzANCHOR Figure 4 QEA�.�" Methane Monitoring Locations - Animal Rescue Center Landfill Gas Screening Jackson County Closed Municipal Solid Waste Landfill