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Home My WebLink About8003_Rowan_MSWLF_CDLF_Notification_FID1624177_20211109NC DEQ 14-Day Notification of Groundwater Division of Waste Management - Solid Waste Protection Standard Exceedance(s) per rule: 15A NCAC 136.1633(c)(1) 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 applicable groundwater protection standards. Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDEQ-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): Golder Associates NC, Inc. on behalf of Rowan County Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Darrem Cox Phone: 336-852-4903 E-mail: decox@golder.com Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # October 20-24, 2006) Rowan County Landfill 789 Campbell Road August 25-27, 2021 and (Active MSW) Woodleaf, NC 27054 80-03 October 8, 2021 Environmental Status: (Check all that apply) Initial/Background Monitoring �X Detection Monitoring Assessment Monitoring FCorrective Action Additional Information: ❑X A notification of values exceeding a groundwater protection standard as defined in 15A NCAC 13B .1634(g)(h) is attached. It includes a list of groundwater monitoring points, dates, analytical values, NC 2L groundwater standard, NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. ❑X A re -sampling event was conducted to confirm the exceedances. Q Alternate Source Demonstration(s) have been approved for the following constituents with report date: Site -specific GPS for Vanadium and Thallium approved by NCDEQ on June 5, 2018 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. Rachel P. Kirkman, PG Principal and Senior Consultant 336-852-4903 Facility Representative Name (Print) Title (Area Code) Telephone Number p Affix NC Licensed/Professional Geologist or Professional II—ri'2( Engineer Seal Signature Date Golder Associates NC, Inc., 58 Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address C-399/C-2862 NC PG/PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2016 gip. �V ^•' iu�rF. GOLDER MEMBER OF WSP November 9, 2021 Ms. Jackie Drummond Department of Environmental Quality Division of Waste Management, Solid Waste Section 2090 US Highway 70 Swannanoa, NC 28778 14-DAY NOTIFICATION ROWAN COUNTY ACTIVE MSW AND C&D LANDFILL, PERMIT NO. 80-03 ROWAN COUNTY, NORTH CAROLINA Dear Jackie, 21456818.101 On behalf of Rowan County, Golder Associates NC, Inc. (Golder) is submitting this 14-Day Notification as required by North Carolina Solid Waste Management Regulation (NCSWMR) 15A North Carolina Administrative Code (NCAC) 13B .1633(c)(1) and 13B .0545 (d)(2). The 14-Day Notification of Groundwater Protection Standard Exceedance(s) form is included as Attachment 1. 1.0 14-DAY NOTIFICATION [15A NCAC 13B .1633(C)(1)] Table 1 and Table 2 (shown below) summarize the estimated concentrations of NC Appendix I constituents that were detected above their respective NC 2L Groundwater Standards or Solid Waste Section Groundwater Protection Standards (GWPSs) during the second semi-annual water quality monitoring event conducted at the Rowan County active municipal solid waste (MSW) landfill and closed C&D landfill on August 25 - 27, 2021. Per 15A NCAC 02L .0202 (b)(1), "where the standard (i.e., the NC 2L Standard) for a substance is less than the practical quantitation limit (PQL or in this case the MRL), the detection of that substance at or above the PQL constitutes a violation of the standard." The NC 2L Standards for cobalt and vanadium are 1 micrograms per liter (ug/L) and 0.3 ug/L, respectively; the PQL for cobalt and vanadium is 10 ug/L. As presented, during the 2021 second semi-annual water quality monitoring event, the cobalt, vanadium, and thallium concentrations were reported below the respective PQLs and are considered estimated (i.e., not quantifiable) with the exception of cobalt at MW-18R2. Although some of the concentrations are above the alternate GPS approved by NCDEQ on June 5, 2018, they are estimated below the PQL. As referenced above, the estimated concentrations below PQLs detected during the August sampling event do not constitute violations of the NC 2L Groundwater Standards. Further, per NC Session Law 2021-153, references to Interim Maximum Allowable Concentrations (IMACs) are no longer applicable to solid waste facilities. Laboratory certificates -of -analysis re submitted under separate cover along with well locations maps as part of the second semi-annual water quality monitoring report. Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North Carolina, USA 27407 T: +1 336 852-4903 F: +1 336 852-4904 Engineering Lic. No. C-2862/Geology Lic. No. C-399 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. Golder and the G logo are trademarks of Golder Associates Corporation. golder.com Ms. Jackie Drummond 21456818.101 Department of Environmental Quality November 9, 2021 Table 1: 14-Day Notifications — MSW Facility PMO Constituent Location Total Result (pg/L) Dissolved Result (Ng/L) PQL (tag/L) IMAC (pg/L) Approved ASD Approved GPS* (ug/L) Cobalt French Drain 1.41 J -- 10 1 No 8.00 Cobalt MW-28R 3.59 J -- 10 1 No 8.00 Vanadium MW-9 3.14 J -- 10 0.3 Yes 5.32 Vanadium MW-11 1.70 J -- 10 0.3 Yes 5.32 Vanadium MW-13 4.29 J -- 10 0.3 Yes 5.32 Vanadium MW-25 7.13 J -- 10 0.3 Yes 5.32 Vanadium French Drain 7.19 J 6.47 J 10 0.3 Yes 5.32 Notes: pg/L = micrograms per liter, ND = not detected above laboratory detection limit, J = estimated value below practical quantitation limit (PQL), -- = no data available *Per ASD response dated May 25, 2018 and approved by NCDEQ on June 5, 2018. Table 2: 14-Day Notifications — C&D Facility Constituent Location Total Result (Ng/L) Dissolved Result (Ng/L) PQL (tag/L) NC2L or GWPS (Pg/L) Approved ASD Cobalt MW-18R2 84.0 82.8 10 1 No Iron MW-18R2 7,500 7,840 50 300 No Manganese MW-18R2 15,500 15,300 10 50 No Manganese MW-17 54.8 -- 10 50 No Manganese MW-19R 73.5 -- 10 50 No J aa� R Ms. Jackie Drummond Department of Environmental Quality 21456818.101 November 9, 2021 Total MW-18R2 1,200,000 -- 500,000 500,000 No Dissolved Solids Thallium MW-18R2 0.228 J -- 2 0.2 Yes Benzene MW-18R2 3.1 -- 1 1 No Notes: pg/L = micrograms per liter, ND = not detected above laboratory detection limit, J = estimated value below practical quantitation limit (PQL), -- = no data available 2.0 CLOSING Unless otherwise directed by NC DEQ, Rowan County will continue monitoring the uppermost aquifer beneath the MSW facility in accordance with the requirements of the Detection Monitoring Program as outlined in Title 15A NCAC 13B .1633. Rowan County will submit an Assessment Monitoring Work Plan for the C&D Landfill by February 7, 2022 per Title 15A NCAC 13B. 0545.(a)(2). The next compliance monitoring event for this facility is tentatively scheduled for January 2022. If you have any questions, please contact the undersigned at 336-852- 4903. Sincerely, Golder Associates NC, Inc. Darren Cox Staff Environmental Scientist DEC/RPK/dec ItZ Rachel P. Kirkman, PG Principal and Senior Consultant CC: Caleb Sinclair, Director, Rowan County Environmental Management, 1102 N Long Street Extension, Salisbury, NC 28144, caleb.sinclair(aDrowancountync.pov Jeff Boyd, Landfill Manager, Rowan County Environmental Management, 1102 N Long Street Extension, Salisbury, NC 28144, ieff.boycl6" .rowancountvnc.gov Mike Plummer, PE, HDR, 440 South Church Street, 101h Floor, Charlotte, NC 28202, molummer(o)_hdrinc.com GOIDER .a�n�R�er wad Ms. Jackie Drummond 21456818.101 Department of Environmental Quality November 9, 2021 Attachment: Attachment 1 — 14-Day Notification of Groundwater Protection Standard Exceedance Form https://goiderassociates.sharepoint.com/sites/151227/project files/5 technical work/phase 101 active 2nd sa 2021/200 deliv/200 draft issued/wqmr report - 2nd semi-annual 2021/2021 august notification asd rowan active.docx aaL R