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Home My WebLink About310017_Add-Info Request_20220408ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director NORTH CAROLINA Environmental Quality April 8, 2022 CERTIFIED MAIL - # 7018 1830 0001 RETURN RECEIPT REQUESTED Ironside Investment Management, LLC DM Farms Sec 2 Sites 1-4 PO Box 1139 Wallace, NC 28466 Subject: Additional Information Request Application No. AWS310017/AWI310017 DM Farms Sec 2 Sites 1-4 Duplin County Ironside Investment Management LLC: The Animal Feeding Operations Program of the Division of Water Resources (Division) has completed a preliminary review of the subject application received on April 22, 2021 for permit modification to cover the existing DM Section 2, Site 2 and DM Section 2, Site 3 lagoons converting them into digesters (Digester A and B, respectively) to capture biogas as a part of the proposed waste -to -energy system modification at the DM Farms Sec 2 Sites 1-4 facility. Additional information is required before we may continue our review. Please address and submit the following item(s) within 30 (thirty) days of receipt of this letter. ❑ Permit Type Requested — Please clarify if the proposed modification is requested under the current Individual Permit or General Permit. Are you requesting rescission of the alternate permit? Do you wish to withdraw the AWI310017 renewal application received September 10, 2021? ❑ Liner design information — Please provide all available design information for the existing earthen liner for the proposed Digesters A and B (lagoons 2-2 and 2-3, respectively). O Land Application/Irrigation Map — Please provide a land application/irrigation map that aligns with the Waste Utilization Plan. AROLINA ' omm ep..orEMr nment o�.i DE NORTH C North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11636 Mail Service Center I Raleigh, North Carolina 27699-1636 919.707.9129 8035 4380 Ironside Investment Management, LLC AWS310017/AWI310017 Additional Information Letter April 8, 2022 Page 2 of 3 ❑ Watershed Classification Map — The Watershed Classification Map submitted shows the location of a proposed NEW digester that is not indicated anywhere else in the application package. Please clarify. ❑ Design Volumes/Calculations — The design volumes shown for Lagoon 2-2 (Digester A) and Lagoon 2-3 (Digester B) are the same. The (West) Volume Calculations sheet shows Digester A (lagoon "2-2") in the table heading. The (East) Volume Calculations sheet shows Digester A (;lagoon "2-3") in the table heading. The data in both tables are identical; however, the site plan clearly shows that the two lagoons are not identical in construction. Please provide clarification regarding the discrepancy, particularly for the Digester Volume Calculations which might better be based on the as -built designs. ❑ Tank Digesters — Please describe how existing tank digesters will be used, decommissioned or officially closed. ❑ Operation & Maintenance — Contact Information — The contact information you have listed for me is out of date, by some years. My current phone number is 919-707-3664. Please verify that information for all contacts is accurate and update the O&M Contact List. ❑ Stormwater Outlet — Please provide a typical detail for outlet for stormwater removed from digester cover. Please also indicate location. ❑ Gas Utilization — Please provide information for the intended onsite and/or offsite use of the biogas. The current designated use is electrical generation. If this is not the case, please provide information regarding the decommissioning of generator and gas conditioning equipment. ❑ Clarification of Flare Model — Please verify that a separate flare will be kept on -site for use for each digester — a total of two. Where will these flares be stored? Will they be tested periodically? ❑ Gas Generation Estimate — Please submit an estimate for the daily volume of biogas to be generated by the proposed Digester. Please be aware that you are responsible for meeting all requirements set forth in North Carolina rules and regulations. Any oversights that occurred in the review of the subject application package are still the responsibility of the applicant. In addition, any omissions made in responding to the above items shall result in future requests for additional information. DE NORTH CAROLINA gaparMeM of Environment,/quay North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11636 Mail Service Center I Raleigh, North Carolina 27699-1636 919.707.9129 Ironside Investment Management, LLC AWS310017/AWI310017 Additional Information Letter April 8, 2022 Page 3 of 3 Please reference the subject application number when providing the requested information. All revised and/or additional documentation shall be signed, sealed and dated, submitted to my attention at the address below. Failure to provide this additional information on or before the above requested date may result in your application being returned as incomplete. If you have any questions regarding this letter, please feel free to contact me at (919) 707-3664. Sincerely, CIIDocuSiigned by: C,U,VYS i t, 15. LaysOtA, 715598463EA94B7... Christine B. Lawson Engineer Animal Feeding Operations cc: Wilmington Regional Office, Water Quality Regional Operations Section — via email Gus Simmons, Cavanaugh & Associates — via email Laserfiche — File No. 310017 D_E NORTH CARCLINA gaparhneM of Environment,/quay North Carolina Department of Environmental Quality I Division of Water Resources 512 North Salisbury Street 11636 Mail Service Center I Raleigh, North Carolina 27699-1636 919.707.9129