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HomeMy WebLinkAboutSW6221001_email_20230615 Peck, Kaitlin From:Farkas, Jim J Sent:Thursday, June 15, 2023 9:12 AM To:hwadsworth@gradientnc.com Cc:lee.p.ward.civ@army.mil; david.a.heins.civ@army.mil Subject:RE: SW6221001 Macridge & Chicken Road Intersection Improvements Mr. Wadsworth, I looked over the information you provided on 3/21/2023. Please correct the following with the design: - Bioretention cells that have an underdrain are required to have internal water storage (Please refer to Part C-2 of the Manual, specifically, the second paragraph on page 6). Please either remove the underdrain or reconfigure the design to meet the MDCs. - Please update the Bioretention Cell Page of the Supplement-EZ Form to reflect the proposed design of the SCM. This item was not updated despite changes to the proposed design of the SCM (For example, if the IWS is being removed and the bottom of the SCM is being raised, this should be reflected in the form). Please provide the following: - 2x hard copies & 1x electronic copy of the revised plans. - 1x hard copy & 1x electronic copy of the revised page of the Supplement-EZ Form. - of the y (2x hard copies for plans) & 1x electronic copy of anything 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 Let me know if you have any questions. 1 Jim Farkas State Stormwater Engineer North Carolina Department of Environmental Quality Office: (919) 707-3646 Jim.farkas@deq.nc.gov From: Farkas, Jim J Sent: Thursday, March 16, 2023 4:25 PM To: 'hwadsworth@gradientnc.com' <hwadsworth@gradientnc.com> Cc: 'lee.p.ward.civ@army.mil' <lee.p.ward.civ@army.mil>; 'david.a.heins.civ@army.mil' <david.a.heins.civ@army.mil> Subject: RE: SW6221001 Macridge & Chicken Road Intersection Improvements Mr. Wadsworth, Sorry for the delay in the review of this information. I was looking over the information you provided on 12/20/2022 and there is one outstanding issue: Please correct the following: - Based on the provided revised soils report, there appears to be insufficient separation between the SHWT and the bottom of SCM 1. The revised SHWT information shows a SHWT elevation of 257.9’ and a bottom elevation of the SCM is shown as 259.7’ (259.7’ – 257.9’ = 1.8’ < 2.0’ (Per Bioretention MDC 1)). Please revise as needed. NOTE: Per the provided soils report, the soil permeability is such that, per Bioretention MDC 4, an underdrain and internal water storage are not required and per Bioretention MDC 5(b)(i), the depth of the media layer can be reduced to 24” deep. - NOTE: The other outstanding issues have been addressed. Please provide the following: - 1x hard copy (2x hard copies for plans) & 1x electronic copy of anything 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. 2 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. Jim Farkas State Stormwater Engineer North Carolina Department of Environmental Quality Office: (919) 707-3646 Jim.farkas@ncdenr.gov From: Farkas, Jim J Sent: Monday, December 12, 2022 3:53 PM To: hwadsworth@gradientnc.com Cc: lee.p.ward.civ@army.mil; david.a.heins.civ@army.mil Subject: RE: SW6221001 Macridge & Chicken Road Intersection Improvements Mr. Wadsworth, I was looking over the information you provided on 10/3/2022. Everything looks good except for a few small issues: Please correct the following: - Please provide the existing ground surface elevations for the soil borings so that the SHWT elevations can be determined (this item is required per Bioretention MDC 1). It is noted that the depth from the existing ground surface elevation to the SHWT is provided, however, we need to be able to verify the elevation of the SHWT. - Please correct the following issues with the Supplement-EZ Form: o Drainage Areas Page:  Line 18 – Please include the %BUA for the entire site and two drainage areas (This information should correspond to Section IV, 8 & 10 of the Application respectively). o Bioretention Cell Page:  Line 24 – Please clarify the peak attenuation elevation/depth. The provided peak attenuation depth for SCM2 (5”) is less than the ponding depth of the design storm (7”). If the peak attenuation elevation/depth is based on a large storm event (such as the 10-year or 100-year 3 storm event) these values should be updated to reflect this. If the SCMs are not designed to attenuate peak flows, these items (and Lines 23 & 25) should be revised to reflect this.  Line 26 – For an SCM with multiple soil borings, either the more conservative infiltration rate or the average infiltration rate should be used. Please revise as needed (providing the existing ground surface elevations for the soil borings will allow us to verify the infiltration rate valued used). Please provide the following: - 1x hard copy & 1x electronic copy of the existing ground surface elevation information for the SHWT borings. - 1x hard copy & 1x electronic copy of the revised pages of the Supplement-EZ Form. - 1x hard copy (2x hard copies for plans) & 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. Jim Farkas State Stormwater Engineer North Carolina Department of Environmental Quality Office: (919) 707-3646 Jim.farkas@ncdenr.gov 4 From: DeBerry, Margie <Margie.DeBerry@ncdenr.gov> Sent: Tuesday, October 4, 2022 8:13 AM To: david.a.heins.civ@army.mil; lee.p.ward.civ@army.mil; hwadsworth@gradientnc.com Cc: Lawyer, Mike <mike.lawyer@ncdenr.gov>; Farkas, Jim J <Jim.Farkas@ncdenr.gov> Subject: SW6221001 Macridge & Chicken Road Intersection Improvements Good morning, We received your post-construction stormwater permit application for the above mentioned project on 10/3/2022. 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 #: SW6221001 If you have any questions, please contact Jim Farkas Jim.Farkas@ncdenr.gov 919-707-3646. Thank you, Margie DeBerry Environmental Specialist, Division of Energy, Mineral, and Land Resources North Carolina Department of Environmental Quality Office: (919) 707-9209 margie.deberry@ncdenr.gov 5 6