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HomeMy WebLinkAboutSW3220803_email_20230410 Peck, Kaitlin From:Farkas, Jim J Sent:Monday, April 10, 2023 2:38 PM To:Kiker, Matthew Cc:mmclendon@kolter.com Subject:RE: SW3220803 Cresswind Phase 4 Matt, I was looking over the additional information you provided on January 10, 2023. Everything looks good except for a few small issues: Please correct the following: - Prior Comment – Please upload the submitted plan sheets individually under the appropriate file types, not as a single file. o What was provided: A PDF containing 81 plan sheets uploaded as “Grading/Drainage Plan” o What is expected: Multiple smaller PDFs containing relevant subsets of the 81 page planset uploaded under the appropriate file types. This project will probably use file types such as cover sheet, existing conditions/survey, proposed conditions/site plan, existing drainage areas, proposed drainage areas, SCM details, miscellaneous details, etc… and each file should only have a couple of plan sheets included in it. Laserfiche (the software that we use for the electronic file uploads) renames & categorizes the uploaded files based on the file type selected and has issues with large files so that is why the planset needs to be broken down in this manner. - Application: o Section IV, 8 – The provided percent BUA for the entire site is shown as 54% whereas this value is shown as 55% in the Supplement-EZ Form. Based on the provided information (project area of 49.19 ac, New BUA of 27.03 ac, and no existing BUA = 55%), the Supplement-EZ Form appears to be correct. Please revise as needed. o Section IV, 10, % Impervious Area – The percent impervious area for the drainage area to the SCM as shown (55%) does not appear to correspond to the information provided for the SCM drainage area (drainage area of 42.25 ac, New BUA of 27.03 ac, and no existing BUA = 64%)/the information shown in the calculations (64%). Please revise as needed. - Supplement-EZ Form: o Cover Page:  Prior Comment – Line 2 – Please use the project area (found in Section IV, 7 of the Application (which does not include the on-site surface water area)) instead of the total project area (per Section IV, 4 of the Application (which does include the on-site surface water area)) o Drainage Areas Page:  Line 10, Roof – Line 10 is a breakdown of all of the BUA that is not allocated to an individual lot (i.e., located in the common areas). Roof area allocated to the individual lots should be shown on Line 6 (as is done on the form), but not shown on Line 10. The Line 10 Roof BUA type would be used for common roof areas, such as for an amenity center or other common area building. The items of Line 10 should add up to Line 7, and, for this project, the sum of Lines 6 & 7 should equal Line 5. Please revise as needed.  Pond 5 Column, Line 16 – Please revise this item (see earlier comment). o Wet Pond Page:  Prior Comment – Line 9 – The provided detail does not appear to indicate a drawdown orifice that could be used to dewater the entire pond. The response to this comment indicates a DIP & 1 sluice gate have been added to the detail, but these items do not appear to have been provided on the detail on plan sheet C3.29 (If I missed it, please let me know).  Line 25 – The temporary pool elevation is typically set by the invert of the lowest bypass elevation of the SCM (the weir @ 576.40’). Please revise.  Line 34 – The cleanout depth of the forebay is the distance from the permanent pool surface elevation (574.5’) to the top of the sediment storage zone in the forebay (570.0’) expressed in inches.  Line 35 – The design volume of the SCM is the volume that can be stored above the permanent pool surface elevation and below the temporary pool surface. NOTE: More recent versions of this form make a distinction between the minimum required treatment volume and the provided design volume of an SCM (the minimum required treatment volume is determined from the drainage area to the SCM (provided for this item), typically using the Simple Method, whereas the design volume is the treatment volume actually provided in the SCM). Please revise. Per the provided stage storage table, the storage volume provided above the permanent pool and below 576.40’ is approximately 98,000 cf. Please provide the following: - 1x electronic copy of the planset broken down by appropriate file type. - 1x hard copy & 1x electronic copy of the revised pages of the Application. - 1x hard copy & 1x electronic copy of the revised pages of the Supplement-EZ Form. - 2x hard copies & 1x electronic copy of the revised SCM detail sheet showing the dewatering orifice for the wet pond. - 1x hard copy (2x hard copies for plan sheets) & 1x electronic copy of anything else needed to address these comments. Hard copies should be mailed to me at the following address: For FedEx/UPS: Jim Farkas 512 N. Salisbury Street, Office 640M Raleigh, NC 27604 For USPS: Jim Farkas 1612 Mail Service Center Raleigh, NC 27699-1612 Hand Delivery: Please reach out to me prior to hand delivering a submission to make sure that I (or someone else in my group) will be able to receive the submission. Do not leave the package in the foyer with the security guard. NOTE: Hard copies should not be sent to a Regional Office. Doing so will delay the review process and the submission package may be lost while being sent from the Regional Office to me in the Central Office. Electronic copies should be uploaded at the following location: https://edocs.deq.nc.gov/Forms/SW-Supplemental-Upload Since these are really minor things, once I get the hard copies, anything else that may have changed from addressing these issues, and the documents are uploaded to Laserfiche (Provided everything is still in order), we can issue the permit without doing another formal review. Let me know if you have any questions. 2 Jim Farkas State Stormwater Engineer North Carolina Department of Environmental Quality Office: (919) 707-3646 Jim.farkas@ncdenr.gov From: Farkas, Jim J Sent: Thursday, November 10, 2022 2:10 PM To: mmclendon@kolter.com; Kiker, Matthew <kiker.m@tandh.com> Cc: Khan, Zahid <zahid.khan@ncdenr.gov> Subject: RE: SW3220803 Cresswind Phase 4 Good Afternoon, The Division of Energy, Mineral and Land Resources (DEMLR), received additional information for a Stormwater th Management Permit Application for the subject project on August 15, 2022. A review of that information has determined that the application is not complete. Attached is a letter describing the items that need to be submitted. If you have any questions, please feel free to contact me. My contact information is listed below. Thank you, Jim Farkas State Stormwater Engineer North Carolina Department of Environmental Quality Office: (919) 707-3646 Jim.farkas@ncdenr.gov From: Tran, Kieu M <kieu.tran@ncdenr.gov> Sent: Tuesday, August 16, 2022 12:00 PM To: mmclendon@kolter.com; Kiker, Matthew <kiker.m@tandh.com> 3 Cc: Farkas, Jim J <Jim.Farkas@ncdenr.gov>; Khan, Zahid <zahid.khan@ncdenr.gov> Subject: SW3220803 Cresswind Phase 4 Good afternoon, We received your post-construction stormwater permit application for the above mentioned project on 8/15/2022. Reviews under the standard permitting process generally take 75 calendar days, but can take up to 90 calendar days per statute (our other reviewer, Corey Anen, no longer works for the State, so this review may exceed 75 days). Please upload all documents that you mailed into our office through the link provided below. Be sure to choose the Central Office as the Primary Contact office. https://edocs.deq.nc.gov/Forms/SW-Supplemental-Upload IMPORTANT NOTE: Please ensure that each file is uploaded under its appropriate file type. Additional file types can be entered into the electronic form by clicking on the “Add Another Post-Construction File Upload” link directly below the “State Stormwater Information Uploads” section of the form. Please do not upload entire plan sets through this form, but rather upload the relevant individual sheets under the appropriate file type. Selecting the correct file type ensures that the files are properly named in the electronic repository and it helps expedite the review process. Please type in permit #: SW3220803 If you have any questions, please contact Jim Farkas Jim.Farkas@ncdenr.gov 919-707-3646. Thank you, Mrs. Kieu Tran Stormwater Program Administrative Assistant Office: (919) 707- 3640 Kieu.Tran@ncdenr.gov North Carolina Department of Environmental Quality Division of Energy, Mineral, and Land Resources Stormwater Program 512 N. Salisbury Street, Raleigh, NC 27604 (location) 1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing) Website: http://deq.nc.gov/about/divisions/energy-mineral-land-resources/stormwater Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties 4