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HomeMy WebLinkAboutSW6210502_Response To Comments_20210916ROY COOPER Governor DIONNE DELLI-GATTI Secretary BRIAN WRENN Director Jeffrey A. Nobles, PE PO BOX 53787 Fayetteville, NC 28305 NORTH CAROLINA Environmental Quality September 14, 2021 Subject: Second Request for Additional Information Stormwater Permit No. SW6210502 James Farm — Phase 2 Hoke County Dear Mr. Nobles: The Division of Energy, Mineral and Land Resources (DEMLR), received a Stormwater Management Permit Application for the subject project on August 6, 2021. A review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Original Comment 1— "There does not appear to be a Public airport located within 5 miles of the project area (Section 11, 5). " The airport information location information (Section II, 5 of the Application) is located on the first page of the Application, which was not provided in the resubmission (only revised pages 2 and 3 of the Application were provided). Please provide a revised page 1 of the Application with the noted revision. Corrected sheet included with this submittal. 2. Original Comment 3 — "Per the prot,idecl USGS topographic inap, there appears to be surface waters located within the project area (Gully Branch). Please... identifi, the surface area of the sii fcice Crater in the main set of plans (Section VI, 810, and show the iequired iegetated setbacks (Section VI, 8p) in the main set of plans. " Please show the surface area of the on -site surface water in the main set of plans (we ask for this so that we can verify the surface area information shown in the Application. Since the surface water is shown as a line on the plans, we cannot measure the surface area ourselves). Please show the required vegetated setback from the on -site surface water in the main set of plans. The vegetated setback requirements for this project can be found in 15A NCAC 02H .1003(4) & 15A NCAC 02H .1017(10). Also, while not explicitly stated, the surface water area information (Line 4 on the Cover Page of the Supplement-EZ Form) and vegetated setback information (Lines 7 & 8 on the Cover Page of the Supplement-EZ Form) should have also been updated. (Comments on the Supplement-EZ Form were not all provided in the prior request for information letter since it was unclear at the time of area has been labeled on plans along with veg. setbacks. Supplement forms have been updated as well. North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources 512 North Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612 o.�mw.�Mro� r 919.707.9200 review if this project would be a modification to the Phase 1 permit or if Phase 2 would receive its own permit). Original Comment 4b — "Chan e flie project area (Section IV, 4 & "Total Drainage Area" in Section IV. 10),for• this submission so that Phase I is not included, recalculating the percent impervious area cis needed. " While not explicitly stated, this update to the project area should have also been carried out in the Supplement-EZ Form (Line 2 on the Cover Page, and the drainage area information on the Drainage Area Page). Line 2 on the Cover Page should correspond to the project area as shown in Section IV, 7 of the Application and the drainage area information on the Drainage Area Page should correspond to the informntion chnwn in Section IV. 1 0. Areas have been updated on Supplement 4. Original Comment 11— "The ditch in formation shotrn on sheet C-04A .shows ... the BUA trithin the drainage area to Stt,ale 7 as 22,965 sf (0.53 ac) ►rhereas the calculations show 0.55 ac. " The calculations show the BUA within the drainage area to Swale 7 as 23,865 sf whereas plan sheet C-04A shows the BUA within the drainage area to Swale 7 as 22,965 sf (i.e., this issue was not resolved). Please revise as needed. The lots allowance for swale 7 had a typo causing the difference. The plans and supplement 5. Please correct the following inconsistencies between the calculations and the Supplement-EZ Form: Updated and corrected. 7&8 slopes were swapped, but other data was correct. New talcs for 5 have been included. correct slope is 4.83%. a. Swale 5 — The slope of Swale 5 is shown as 4.83% in the Supplement-EZ Form and as 7.83% in the calculations. b. Swale 7 — The slope of Swale 7 is shown as 2.09% in the Supplement-EZ Form and as 0.4% in the calculations. c. Swale 8 — The slope of Swale 8 is shown as 0.4% in the Supplement-EZ Form and as 2.09% in the calculations. 6. Provide pdfs of all revisions, 2 hardcopies of revised plan sheets, and 1 hardcopy of other documents. a. Pdfs must be uploaded using the form at: https://edocs.deg.nc.gov/Forms/SW_Project_submittal b. Hard copies must be mailed or delivered to the following address: Jim Farkas 512 N. Salisbury Street 1612 Mail Service Center Raleigh, NC 27699-1612 Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to October 14, 2021, or the application will be returned as incomplete. The return of a project will necessitate resubmittal of all required items, including the application fee. Please reference the State assigned project number SW6210502 on all correspondence. If you need additional time to submit the information, please submit your request for a time extension to the Division at the contact below. The request must indicate the date by which you expect to submit the required in!-0niiation. The Division is allowed 90 days from the receipt of a completed application to issue the permit. The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation Erosion Control Plan, is a violation of NCGS 143-215.1 and is subject to enforcement action pursuant to NCGS 143-215.6A. If you have any questions concerning this matter please feel free to contact me at im.Farkas@ncdenr.gov or (919) 707-3646. Sincerely, )"'41' Jim Farkas Environmental Engineer Stormwater Program cc: Fayetteville Regional Office