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Home My WebLink About0601_AveryCounty_MSWLF_LFG_FID1819568_20231025DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 14 N. Boylan Ave, Raleigh, NC 27603 Facility Representative Address F1370 NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 DENR USE ONLY ❑Paper Report [:]Electronic Data - Email CD (data loaded: Yes / No Doc/Event #: NC DENR I I Environmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 213 surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Smith Gardner, Inc. Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Seth C. Rickerts, P.G. E-mail: seth@smithgardnerinc.com Phone: 919-828-0577 x 135 NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24, 2006) Avery County Closed MSW Landfill Brushy Creek Road, Spruce Pine, NC 06-01 .0500 September 8, 2023 Environmental Status: (Check all that apply) ❑ Initial/Background Monitoring ❑ Detection Monitoring ❑X Assessment Monitoring Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells ❑X Groundwater monitoring data from private water supply wells ❑ Leachate monitoring data El water monitoring data Methane gas monitoring data Corrective action data (specify) Other(specify) Notification attached? e No. No groundwater or surface water standards were exceeded. Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. ❑X Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. Seth C. Rickerts, P.G. Project Geologist 919-828-0577 x 135 Tt�IR8@ 4!Tifttive Name (Print) Title (Area Code) Telephone Number SC�n iZ1el�ct�5 10/25/2023 Affix NC I icancPri/ Prnfascinnal CPniogist Seal ChA SEAL 10/�5/�023 2758 Co JJff J/II fA Ilk 11"Vj11 Date DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 SMITH GARDNER ADDRESS TEL WEB 14 N. Boylan Avenue, Raleigh NC 27603 919.828.0577 www.smithgardnerinc.com October 23, 2023 Ms. Jaclynne Drummond NCDENR DWM Solid Waste Section 2090 U.S. 70 Highway Swannanoa, North Carolina 28778-8211 RE: Operations, Monitoring, and Maintenance Report — September 2023 Avery County Closed MSW Landfill (Permit No. 06-01) Spruce Pine, North Carolina Dear Ms. Drummond: On behalf of Avery County (County), Smith Gardner, Inc. (S+G) is pleased to present this report regarding the operation and maintenance (0&M) of the Avery County Closed MSW Landfill (Permit No. 06-01) Landfill Gas Collection and Control System (LFGCCS), and the perimeter monitoring probes for September 2023. Site details are provided below. SITE HISTORY The Avery County Closed MSW landfill is located approximately 0.6 miles southeast of the intersection of Highway 19 and Brushy Creek Mountain Road next to the Avery County Airport and the Unimin Corporation mine facility. There is no active mining in the immediate vicinity of the landfill. The MSW landfill was operated from 1970 until it closed in 1993. The property consists of approximately 14.4 acres, with the landfill footprint occupying approximately 9.6 acres of the site. Landfill topography ranges in elevation from approximately 2770 ft. msl to 2670 ft. msl, and slopes downhill toward Brushy Creek. Landfill gas monitoring and LFGCCS maintenance is completed on a monthly basis due to Landfill gas concentrations detected in monitoring probes off -site. LFG COLLECTION AND CONTROL SYSTEM MONITORING ACTIVITIES The site has an active Landfill Gas Collection and Control System (LFGCCS) consisting of 10 Landfill gas extraction wells (W-1 through W-10), HDPE piping for transmission of collected Landfill gas, a one and a half (1.5) horsepower blower, a condensate trap and storage tank, a candlestick flare, and associated valves and gauges. During the May 2023 monitoring event, repairs were made to the system which included the installation of a new one and a half (1.5) HP blower and replacement of the flare ignition device. Well field and flare station data are provided in the attached Table 1. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 Ms. Drummond October 23, 2023 Page 2 of 4 LFG Extraction Well Field • W-1 through W-10: S+G performed methane (CH4), oxygen (02), and carbon dioxide (CO2) monitoring as well as temperature and pressure monitoring. In general, gas quality varies across the wellfield. All wells with the exception of W-6, W-7 and W- 10, had recorded an oxygen level below 5% this sampling event. The wells will continue to be tuned to limit the concentration of oxygen in the landfill gas. Flare Station Gas quality measured at the flare is nominal with moderate levels recorded of methane, and low levels recorded of oxygen. The wellfield will continue to be monitored, tuned, and maintained as necessary to identify potential issues with the system and to improve gas quality levels. LFG MONITORING WILL (PERIM[TER) MONITORING PROGRAM S+G performed monitoring of the perimeter LFG monitoring network during this event. The network consists of probes P-1 through P-13 located around the facility, and in some cases, on adjacent properties. Monitoring results for this month indicate the following probes have detectable methane concentrations: • P-1 • P-3 • P-7 Monitoring probes P-1, P-3, and P-7 both had observed concentrations above the lower explosive limit (LEL); the concentration in P-1 was 12.3%, P-3 was 1.5% and P-7 was 6.0%. Overall, the three (3) probes with detectable levels of methane saw a decrease in concentration from the August 2023 monitoring event. The cause of the general decrease in methane concentration is believed to be the result of the new 1.5 horsepower blower being installed in May 2023. Attachment 1 includes the monitoring forms with results while Attachment 2 provides a CH4 concentration graph over time for monitoring wells that have historically had methane present. Monitoring of the current well network will continue, and data will be reported to NCDEQ and the County. CONCLUSIONS Monitoring probes P-1, P-3, and P-7 will continue to be monitored closely. S+G will continue to monitor the methane concentrations at the site monthly, and advise the County as needed on repairs required to maintain an effective collection system. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 Ms. Drummond October 23, 2023 Page 3 of 4 The next monitoring event is scheduled for October 2023. If you have any questions, or require additional information, please contact us at your earliest convenience at 919-828-0577 or by e-mail (address below). Sincerely, SMITH GARDNER, INC. EDocuSigned by: i4.vUj U tvu, "4ie.o 5DD73DOAEAB2442... Daniel J. Pantaleo Environmental Technician ext. 140 daniel(dsmithaardnerinc.com Attachments cc: Eric Foster - Avery County file DocuSigned by: E can c. ItZ�", 3B8305CMEME6... Seth C. Rickerts, P.G. Project Geologist ext. 135 sethfdsmithaardnerinc.com 0 •`,02�''�GeN�F C� p.. SEAL / 10 15 2758 oD ............... �0,. 023 DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 Ms. Drummond October 23, 2023 Page 4 of 4 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 MUM DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 ti 41 r -10 1• owiw . y• + r CIE ! �* " w r \O.� AR- Oil r., al� 4' i •.' • A M '�• t y ,� *fit•' � 6 �,. -7,/ ,,�J � r� - ..r - .. do •,w . .' &A% I d, o • 1 w r ■".1-1 7 . ; / ' • -. . lop /h aAVERY COUNTY �r ` BPI, ft �► #. tPT V LANDFILL ►■ i or a �r 1 Opp ' • LEGEND • T� ' 1 • . 0 EXISTING LANDFILL GAS PROBE • +• ® OFFSITE STRUCTURE TO BE ' •^ ■ MONITORED ,,. •�;�` REFERENCES «� 1. ADJACENT PROPERTIES ARE FROM AVERY COUNTY GIS MAPPING DEPARTMENT. _• r 2. MONITORING WELL LOCATIONS FROM FIELD SURVEY DATED 1/14/08, BY SURVEYING SOLUTIONS, P.C. 3. PROPERTY LINE FROM FIELD SURVEY DATED APRIL 9, 2010, BY .1�►.,N APPALACHIAN PROFESSIONAL LAND SURVEYORS & CONSULTANTS. • 4. LFG PROBES LOCATIONS FROM FIELD SURVEY DATED APRIL 9, 2010, BY APPALACHIAN PROFESSIONAL LAND SURVEYORS & CONSULTANTS. �, • • PROBE P-2, P-3, AND P-9 THROUGH P-13 LOCATIONS WERE NOT ; SURVEYED AND ARE APPROXIMATE. yy �\•1 or•�411F 00 0 N 0 m w w z z a w � J O U -) a Z 1u U > C G w Q o Qa � Z J cn o W m d C/7 C j � U Q >- y x cm y o J V J a z c' z o U W >— c.3 x x W d Q en DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 TABLES DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 SMITH GARDNER • 3.is O• • . •% • `�? • • • DQE October 23, 2023 B( DJP IhAoeID [ate 04 02 CY Etla-w Irit.TerWatLre Irit.3atic Resare P4.Satic FResare Irit.DFF. Resare* Irit.Rav N.R �em Resare m-d dcV yyyy % % % % deg F i n FEO i n I-0 i n I PO 3fm Wm i n I PO AVERY-W1 9/8/2023 73.3 26.6 0.1 0 71.2 -48.44 -48.44 -0.115 0 0 -48.47 AVE RY-W2 9/8/2023 57.3 24.8 0 17.9 69.7 -47.21 -47.23 -1.154 0 0 -48.62 AVERY-W3 9/8/2023 70.9 27.7 0 1.4 69.2 -47.09 -47.09 -1.377 0 0 -48.64 AVE RY-W4 9/8/2023 32.6 20.2 0 47.2 68.2 -48.92 -48.95 0.008 2.7 2.7 -48.87 AVERY-W5 9/8/2023 25.6 25.1 0.4 48.9 70.7 -47.77 -47.77 -1.494 0 1 0 -49.04 AVERY-W6 9/8/2023 8.3 15.4 6.1 70.2 70.7 -21.46 -21.01 0.022 8.6 8.5 -49.3 AVERY-W7 9/8/2023 5.1 13.3 6 75.6 71.5 -14.12 -5.81 -5.01 0 0 -49.12 AVERY-W8 9/8/2023 49.7 35.5 0.1 14.7 73.8 -49.38 -49.38 0.007 0.2 0.2 -49.09 AVERY-W9 9/8/2023 35.3 27 0.5 37.2 68.3 -48.58 -48.61 0.034 0.4 1 0.3 -48.53 AVERY-W10 9/8/2023 16.9 7.7 15.1 60.3 67.5 -48.89 -48.89 0.024 0.3 0.3 -40.67 Av-Flare 9/8/2023 30.2 19.1 4.7 46 76.3 0.85 0.86 0.751 19.8 16.4 1.11 *The differential pressure measurement should be positive. A negative differential pressure may indicate no gas flow. Negative differential pressure can be the result of dirt or water obstructing the pitot tube perforations. Overpul ling by adjacent extraction wells may also result in negative pressure being displayed. NR= not recorded DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 ATTACHMENT 1 PERIMETER MONITORING PROBE DATA DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 NC Division of Waste Management - Solid Waste Section Landfill Gas Monitoring Data Form Notice: This form and any information attached to it are 'Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Facility Name: Avery County Closed MSW Landfill Permit Number: 06-01 Date of Sampling: 09/08/2023 NC Landfill Rule (.0500 or .1600): .0500 Name and Position of Samnle Collector- Daniel J. Pantaleo - Environmental Technician Type and Serial Number of Gas Meter: GEM5000, G506472 Date and Time of Field Calibration: 09/08/2023, 0840 Calibration Date of Gas Meter: 01 /2023 Type of Field Calibration Gas (15115 or 35/50): 35/50 Expiration Date of Field Calibration Gas Canister: 10/2023 Pump Rate of Gas Meter: 0.5 LPM Ambient Air Temperature: 65 F Barometric Pressure: 28.45 in Hg General Weather Conditions: Sunny Instructions: Under "Location or LFG Well" identify the monitoring wells or describe the location for other tests (e.g., inside buildings). A drawing showing the location of test must be attached. Report methane readings in both % LEL and % methane by volume. A reading in percent methane by volume can be converted to % LEL as follows: % methane by volume = % LEL/20 Location or LFG Well ID Sainple Tube Purge Time Time Pumped (s) Initial °,ZEL Stabilized °,,ZEL Of4L-H4 by Volume %02 %CO2 Notes H 2 S p p m P-1 >60s 1007 >60s 274 274 12.3 13.7 7.6 3 P-2 >60s 1003 >60s 12 12 0.6 19.9 0.5 3 P-3 >60s 0958 >60s 30 30 1.5 18.3 2.6 3 P-4 >60s 0954 >60s 6 6 0.3 20.3 0.0 3 P-5 >60s 0949 >60s 6 6 0.3 17.7 3.4 3 P-6 >60s 0943 >60s 6 6 0.3 19.4 0.8 3 P-7 >60s 0939 >60s 120 120 6.0 1.3 17.3 3 P-8 >60s 0934 >60s 6 6 0.3 17.7 3.7 3 P-9 >60s 1012 >60s 6 6 0.3 18.6 2.0 3 P-10 >60s 1015 >60s 6 6 0.3 18.6 1.4 3 P-11 >60s 1022 >60s 6 6 0.3 19.2 0.9 3 P-12 >60s 0936 >60s 6 6 0.3 19.9 0.1 3 P-13 >60s 1233 >60s 6 6 0.3 19.0 0.3 3 Airport Structures >60s 1235 >60s 6 6 0.3 20.1 0.0 3 If your facility has more gas monitoring locations than there is room on this form, please attach additional sheets listing the same information as contained on this form. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. DocuSignedl/Vb'1y: kvuj V 14V�iv eo SIGNATURE Environmental Technician TITLE DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 ATTACHMENT 2 HISTORICAL PERIMETER MONITORING PROBE TRENDS DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 This page intentionally left blank. DocuSign Envelope ID: ABCC9ECE-DAAB-4093-B295-767788EF9573 SMITH+GARONER 80.0 W9/P3 Connection 3ristal I 70.0 (September 1J, 2014 Installation of P7/W8 60.0 (September 3, 2015) E 50.0 0 1 40.0 a x * 30.0 _ 20.0 10.0 AeyQu1ybBNedill bill Cbs KhTtDnrgPcbeliwak By. DJP Date: 10/23/2023 New Blower Loss of Blower Motor Motor Installed (October 2022) ' (May 2023) 0.0 N N ti N .�i eNi N � � N ti N N N ti ti W W W aD � Of � Oit OI O N N N N N N N N N N N N No w o l o I N o I N o I N o I N o l o N o I N z z v+ z z z z z z z —P1 m O P3 o- -P7