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HomeMy WebLinkAboutSW8121103_HISTORICAL FILE_20130819STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW8 1211 D3 DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE ❑ COMPLIANCE EVALUATION INSPECTION DOC DATE 20181 q YYYYMMDD Nelson, Christine From: Michael Gallant (gallantmc@yahoo.com] Sent: Thursday, August 15, 2013 5:14 PM To: Nelson, Christine Subject: Re: IC Life Christine, I made the changes to the calculation spreadsheet (head =( 54. 2.5)/3= .96667 ft), and used required volume for dd time (calculated at 4 days). I will get you revised talc sheet and supplement tomorrow. You can make the other changes by hand. Thanks for all your help. Michael C. Gallant, PE PO Box 4039 Surf City, NC 28445 910.448.1046 www.michaelgallantengineer.com From: "Nelson, Christine" <christine.nelson@ncdenr.gov> To: Michael Gallant <gallantmc@yahoo.com> Sent: Thursday, August 15, 2013 4:49 PM Subject: RE: IC Life Michael, I'm so sorry to keep going back and forth on this. I was updating the information in our check sheet and I found that the calculated drawdown time wasn't quite matching up with what you listed. In looking at your talcs, I don't understand your average head calculation. It looks like you are using (TP vol / PP sa / 3). In section 3.52 of the BMP manual, the average head is Ho/3. Ho is defined as the driving head from the centroid of the orifice (or PPE) to the TP elevation. In other words it is a third of the difference between the TP elevation and the PP elevation. Why are you using the volumes and surface areas? Also, it looks like you are using the provided temporary volume to determine the drawdown time. The required volume should be used as it's the required volume that needs to drawdown in 2-5 days, not the additional volume. I have attached an old schematic that may or may not help make sense of all of this. Am 1 looking at your calculations correctly? . Thanks for your assistance as we try to wrap this one up. Christine Finail correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: Mlchael Gallant [mailto:gallantmc rt yahoo.com] Sent: Monday, August 12, 2013 5:21 PM To: Nelson, Christine Subject: Re: IC Life I will show the temp pool at 5.4 ft and revise the temp pool volume and surface area. The QIO is not a local requirementjust something I do because I think it is good engineering practice if possible. You will have the changes tomorrow. Michael C. Gallant, PE PO Box 4039 Surf City, NC 28445 910.448.1046 Nelson, Christine From: Nelson, Christine Sent: Thursday, August 15, 2013 4:56 PM To: 'MIchael Gallant' Subject: RE: IC Life Once again, I'm so sorry - I thought I looked at everything, but realized you had provided an updated pond detail sheet. I have two small comments on that plan: On the pond cross-section, the temporary pool elevation of 5.4 is labeled as "Perm. Pool El". The outlet structure detail lists the temporary pool elevation as 5.00 instead of 5.4. Can I either get revised plans or written permission to make the changes by hand? Thanks! Christine Email correspondence to and from this address is subject to the North Carolina Public Records Low and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: Nelson, Christine Sent: Thursday, August 15, 2013 4:50 PM To: 'MIchael Gallant' Subject: RE: IC Life Michael, I'm so sorry to keep going back and forth on this. I was updating the information in our check sheet and I found that the calculated drawdown time wasn't quite matching up with what you listed. In looking at your talcs, I don't understand your average head calculation. It looks like you are using (TP vol / PP sa / 3). In section 3.52 of the BMP manual, the average head is Ho/3. Ho is defined as the driving head from the centroid of the orifice (or PPE) to the TP elevation. In other words it is a third of the difference between the TP elevation and the PP elevation. Why are you using the volumes and surface areas? Also, it looks like you are using the provided temporary volume to determine the drawdown time. The required volume should be used as it's the required volume that needs to drawdown in 2-5 days, not the additional volume. I have attached an old schematic that may or may not help make sense of all of this. Am I looking at your calculations correctly? Thanks for your assistance as we try to wrap this one up. Christine Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: MIchael Gallant [mailto:gallantmcCalyahoo.com] Sent: Monday, August 12, 2013 5:21 PM To: Nelson, Christine Subject: Re: IC Life I will show the temp pool at 5.4 ft and revise the temp pool volume and surface area. The QIO is not a local requirementjust something 1 do because 1 think it is good engineering practice if possible. You will have the changes tomorrow. Michael C. Gallant, PE PO Box 4039 Michael C. Gallant PE, PA Engineering / Consulting / Design Christine Nelson Environmental Engineer NCDENR-DWQ, WiRO 127 Cardinal Drive Wilmington, NC 28403 Augaust 13, 2013 Re: I C Life Christine, In response to your email on August 12, 2013, please find the following revisions and information regarding your comments: The plan sheet C4.3 has been revised to show the temporary storage elevation at 5.40 ft. The Pond Spreadsheet has been revised to show the temporary storage elevation at 5.40 ft and the temporary volume has increased as a result. This also increased the drawdown time to 4.7 days. The supplement form has been revised to show the changes in temporary storage elevation, volume and drawdown time. Please find two copies of all the revised documents attached. If you have any questions please feel free to call me at 910.448.1046. Sincerely, U& Michael C. Gallant, PE gal Iantmc@yahoo. corn tel 910.448.1046 AUG 13 2013 P.O. Box 4039 Surf City, NC 28445 Nelson, Christine From: Nelson, Christine Sent: Monday, August 12, 2013 5:05 PM To: 'Michael Gallant Subject: RE: IC Life Michael, If the next available outlet is set at 5.4, then the temporary pool needs to be reported as 5.4 ft throughout the application documents. As you know, changing this elevation affects other information presented in the documents: temporary pool surface area, drawdown time, etc. Please keep in mind that with the drawdown calculations, the entire provided head must be considered along with the required storage volume. Please have the revised documents submitted by August 30, 2013. Is the Q10 pre/post a local requirement? Christine Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: MIchael Gallant [mailto:aallantmc(d)yahoo.coml Sent: Monday, August 12, 2013 4:44 PM To: Nelson, Christine Subject: Re: IC Life Christine, To meet the burden of the States requirement for storage, the temporary pool would reach an elevation of 5 ft. In order to lower the Q10 out fall for the pond to less than the pre development Q10 the outlet needs to be at 5.4 ft. There is no intermediate orifice or weir for the 5 ft temporay pool. Another way to look at it is that I am providing excess storage by .4 feet. Michael C. Gallant, PE PO Box 4039 Surf City, NC 28445 910.448.1046 www.michaelpallantent,ineer.com From: "Nelson, Christine" <christine.nelson(a)ncdenr.gov> To: Michael Gallant <gaIlantmc(o)vahoo.com> Sent: Monday, August 12, 2013 3:53 PM Subject: RE: IC Life Michael, 1 have just gone through the revised documents submitted on July 30, 2013. It seems there still is some confusion over the temporary pool elevation. The temporary pool elevation is considered to be the elevation of the next available outlet. Above the permanent pool, set at 2.5, what is the elevation of the next available outlet? From the outlet structure detail, it appears to be at an elevation of 5.4 ft. I don't see an outlet identified at an elevation of 5 ft. Can you help clarify? Christine Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. 1 r/ From: Nelson, Christine Sent: Monday, August 12, 2013 11:42 AM To: 'Mlchael Gallant' Subject: RE: IC Life Michael, I have the project in front of me and ant trying to review it today. I've been a bit side tracked this morning. Christine Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: Mlchael Gallant [mailto:eallannnc a vahoo.com] Sent: Monday, August 12, 2013 11:13 AM To: Nelson, Christine Subject: IC Life Christine, Just following up my phone call with an email. I was wondering if you needed anything else on IC Life. I dropped off the revisions from your request for add info while you were away. Thanks for all your help. Michael C. Gallant, PE PO Box 4039 Surf City, NC 28445 910.448.1046 www.michaelpaIlantenFineer.com Michael C. Gallant PE, PA Engineering / Consulting / Design Christine Nelson Environmental Engineer NCDENR-DWQ, WiRO 127 Cardinal Drive Wilmington, NC 28403 July 30, 2013 Re: I C Life Christine, In response to you additional information request dated July 24, 2013, please find the following revisions and information regarding your comments: 1. The plans have been revised to show the outlet swale from the vegetated filter to be sod instead of rip rap. The outfall for the Q10 storm is less than 1 cubic foot per second and the resultant velocity in that channel is less than 2 feet per second. 2. The outlet channel is flat and some additional spot elevations have been added. This change can be seen on sheets C4.0 and C4.3 (attached). A detail of the channel cross section is shown on C4.3. 3. A note has been added to the narrative to indicate that the pervious concrete driveways are a requirement of the Town of Surf City. These drives are not credited to a reduction of impervious area in this plan and are, for the purposes of this plan, considered impervious. 4a. The wet pond supplement and the calculation sheet (attached) have been revised to show the correct area of the pond bottom. 4b. The forebay area and the pond area are to be graded to an elevation of -5.0 as per the cross section. The pond bottom is considered to be at elevation -4.0 leaving the required 1 foot of sediment storage. The areas for these contours has been revised as previously noted. 4c. The required temporary pool elevation for the 1 year event is at a stage of 5.0 feet. This plan goes beyond that requirement and considers the peak stage of the 10 year event. This plan reduces the outfall for the 10 year event to less than the predevelopment flow. Sheet C4.3 has been revised to show both the temporary pool elevation and the 10 year peak stage. The supplement has been revised to show storage above the temporary pool. Please note that this causes an error in the spreadsheet which I have manually deleted. According to the formula for that cell any other elevation other than the temporary pool elevation will yield and error (cell B65 "Elevation of Additional Volume"). 4d. The permanent pool elevation is at elevation 2.5 and the plans have been revised to show that on Sheet C4.3. ga Ilantmc@yahoo. corn tel 910.448.1046 P.O. Box 4039 Surf City, NC 28445 ECEIVE JUL 3 0 2013 BY: Michael C. Gallant PE, PA Engineering / Consulting / Design Please find two copies of all the revised documents attached. If you have any questions please feel free to call me at 910.448.1046. Sincerely, Michael C. Gallant, PE gallantmc@yahoo.com t e 1910.448.1046 P.O. Box 4039 Surf City, NC 28445 Michael C. Gallant PE, PA Engineering / Consulting / Design Project Narrative for I C Life General Information Project Name: I C Life P('FIVE JUL 3 0 20±3 V! BY:�_ This roject was previously permitted as Lattier Landing. The permit number was SW8 121103 A request for a Storm Water Management Permit was dated November 6, 2012. G� 0 bS i Address: Little Kinston Rd. Surf City, NC Pender County Acres in Tract: 3.11 Acres Acres Being Disturbed: 1.45 Acres Acres in Wetlands: 1.66 acres of wetlands. There will be no impacts to wetlands on this project. Ownership Information: Thomas Nelson 3075 AB Carter Rd. Fayetteville, NC 28312 Description of Development Proposal: The applicant wishes to construct home sites on 10 lots. The tax parcel IDs for the lots property is 4235-62-2044-0000 Pre 1988 Built Upon Area: There is no pre built upon area on the project. Phasing and Storm Water Facilities: The project will be developed in one phase. The project includes the development of 10 home sites that front on an existing public right of way. The project will adhere to the requirements of a high density plan. The built upon area will not exceed 50%. The project drains to Topsail Sound which is designated as class SA waters. A wet detention basin has been designed for the project. The basin is designed to remove 90% of TSS and is in series with a level spreader/vegetated filter. This basin will serve as a skimmer gallantmc@yahoo.com tel 910.448.1046 P.O. Box 4039 Surf City, NC 28445 t� Michael C. Gallant PE, PA Engineering / Consulting / Design basin during construction and will be cleaned out before being put into final service as a wet.detention basin. Please note that lots 5-8 are required to have pervious concrete driveways per the LFasZes ofSurf City Planning requirements. This plan takes no credit for this area anthat this area is impervious. Water and Waste Water Treatment: Water and sewer utility service will be provided by the Town of Surf City. Historic Sites and Public Monies: To the best of my knowledge, there are no historic sites on the property. The project will be privately funded and no public monies will be utilized. Non Compliance Issues: To my knowledge there are no non-compliance issues associated with the site apart from the fact that the original site plan was never developed. The property was in foreclosure and this resulted in a compliance inspection report and a letter requesting a permit application (attached). Stormwater and Soil Erosion Information Basin and Stream Information: The project drains to Topsail Sound (SA, HQW). A copy of the classification documentation is included. This project lies within the White Cape Fear River basin. Density Classification: High Density Proposed Impervious Surface: 50% Proposed Treatment and Collection: Run off from the project will sheet flow over the roadway to a flume that will deposit flow in to the wet detention basin. The basin is designed for 90%TSS removal. The basin is followed by a level spreader and vegetated filter. The vegetated filter outlets to a rip rap swale that flows to the on -site wetlands. These wetlands border on the Topsail Sound (ICWW). The outlet of the swale does not fall within the Division of Coastal Management's Area of Environmental Concern. The distance to the surface gallantmc@yahoo.com tel 910.448.1046 P.O. Box 4039 Surf City, NC 28445 Michael C. Gallant PE, PA Engineering / Consulting / Design waters from the swale outlet is approximately 268 feet at the shortest distance. These on - site wetlands should act to further treat and infiltrate the wet detention basin effluent. In designing the basin, the seasonal high water table (SHWT) was taken from previous plans to be at an elevation of 3 feet MSL. During a file review the site inspection and infiltration site visit request was found and is included in the supplemental information packet. It appears that the site evaluation shows the SHWT 24" below grade. This would coincide with an elevation between 2.5 and 3 feet MSL. In reviewing the topography of the site it appears that the wetlands line corresponds with the 2 and 3 foot contour lines. Given this information the permanent pool for the wet basin was designed at 2.5 feet MSL. All disturbed areas will be stabilized within 7 days from the completion of work. The preferred method of stabilization is hydroseeding. This project lies within the % mile for SA waters. There will be no offsite fill brought to the site. Built Upon Area Collection: All built upon areas will sheet flow.to the surrounding grassed yard areas. Buffer Requirements: None. DCM AEC: None on site. Offsite Water: NA Road Access: The project will be accessed directly by the Town of Surf City public right of way. Soils: An NRCS soils report for the site is attached. Off Site Improvements: No off site improvements are planned at this time. gallantmc@yahoo.com tel 910.448.1046 P.O. Box 4039 Surf City, NC 28445 Nelson, Christine From: Nelson, Christine Sent: Wednesday, July 24, 2013 3:10 PM To: 'Michael Gallant' Subject: RE: IC Life - request for additional info Thanks for that clarification! Maybe add a similar note to the narrative? With just the note on the plans, it looks a bit misleading from a state stormwater permitting perspective. Thanks! Christine Email correspondence to and from this address is subject to the North Carolina Public Records Low and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: MIchael Gallant (mailto:gallantmcColyahoo.com] Sent: Wednesday, July 24, 2013 3:03 PM To: Nelson, Christine Subject: Re: IC Life - request for additional info Thanks Christine. I will turn these around and get them to you when you return. BTW the comment #3 about pervious concrete driveways - that is a Surf City requirement for those lots. I am not treating like a pervious structure or trying to get any credit for it in this plan. 1 am not sure why they require it onjust those lots. All lots on the island are required to have pervious pavement driveways or to be gravel. Enjoy your time off. Michael C. Gallant, PE PO Box 4039 Surf City, NC 28445 910.448.1046 www.michaelgallantenpineer.com From: "Nelson, Christine" <christine.nelsonno ncdenr.gov> To: MIchael Gallant <gaallantmc(cDvahoo.com> Sent: Wednesday, July 24, 2013 2:51 PM Subject: IC Life - request for additional info Mike, I am attaching a copy of the request for additional information for this project. Copies will also be sent out in the mail. As I mentioned to you earlier this week, I will be out of the office starting tomorrow, July 25 and will likely return on August 7th. If you get a chance this afternoon, please take a look and let me know if you have any questions about these items. Thanks! Christine Christine Nelson Environmental Engineer State Stormwaler Program NC Division of Water Quality 127 Cardinal Drive Ext. Wilmington, NC 28405 Phone: 910-796-7323 FWA NC®ENR North Carolina Department of Environment and Natural Resources Pat McCrory Governor July 24, 2013 Mr. Thomas Nelson 3075 AB Carter Road Fayetteville, NC 28312 Division of Water Quality Thomas A. Reeder Acting Director Subject: Request for Additional Information Stormwater Project No. SW8 121103 IC Life Pender County Dear Mr. Nelson: John E. Skvarla, III Secretary The Wilmington Regional Office received and accepted a State Stormwater Management Permit Application for IC Life on June 11, 2013 with additional information provided on July 22, 2013. A preliminary in-depth review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 01 Please provide an explanation as to why riprap is necessary to stabilize the outlet and channel from the pond. Vegetated conveyances are the preferred method. Please provide additional grading information along the outlet channel as well as a detail of the channel. The plans indicate that lots 5 — 8 must have a pervious drive. Please explain what this note means or provide a detail of the proposed drives. If permeable pavement will be used, please submit the necessary information associated with pervious pavement. 4. Please ensure the information is presented consistently among the application documents. The following items were noted: ✓a. The wet detention pond supplement indicates that the pond bottom surface area will be 101 ft2 while the calculations indicate it will be 500 ft2. /b. The forebay pond bottom surface area at elevation -4 It was identified as 0 ft2 in the calculations, however the plans indicate the forebay provides the required 1 foot of sediment storage below the -4 ft elevation. Please confirm that there is sediment storage available within the forebay below an elevation of -4 ft. �. c. The calculations and the supplement indicate that the temporary pool elevation will be 5 ft; however plan C4.3 indicates that the rim elevation for the precast riser will be either 5.4 ft or 4.9 ft. Please confirm the temporary pool elevation and ensure it is accurately presented on the plans. d. The pond cross section indicates that the vegetated shelf will be between elevations 1.5 and 2.5 ft; however the supplement indicates the vegetated shelf will be between 2 and 3 ft. Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 One Phone: 910-796-72151 FAX: 910-350-20041 DENR Assistance: 1$17-623-6748 NorthCarolina Internet: w .nmaterquality.org a��/.'/rry//� An Equal Opportunity l Affirmative Action Employer (/{v bi4 al Thomas Nelson July 24, 2013 Stormwater Application No. SW8 121103 Please remember that a change to one number may have a domino effect on other numbers. Please check all plans, calculations and forms to ensure that the numbers are consistent throughout. Please note that this request for additional information is in response to a preliminary review. The requested information should be received in this Office prior to August 16, 2013, or the application will be returned as incomplete. The return of a project will necessitate resubmission of all required items, including the application fee. If you need additional time to submit the information, please mail, email or fax your request for a time extension to the Division at the address and fax number at the bottom of this letter. The request must indicate the date by which you expect to submit the required information. 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. Please reference the State assigned project number on all correspondence. Any original documents that need to be revised have been sent to the engineer or agent. All original documents must be returned or new originals must be provided. Copies are not acceptable. If you have any questions concerning this matter please feel free to call me at (910) 796-7215 or email me at christine.nelson@ncdenr.gov. Sincerely, Christine Nelson Environmental Engineer GDS/can: S:\WQS\Stormwater\Permits 8 Projects\2013\121103 HD\2013 07 addinfo 121103 CC' Michael Gallant PE Wilmington Regional Office Stormwater File Page 2 of 2 Nelson, Christine From: Nelson, Christine Sent: Thursday, July 18, 2013 12:15 PM To: 'Michael Gallant' Subject: RE: Charlestown Plantation Monday morning should be fine. Thanks. Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: MIchael Gallant rmailto:gallantmc(o)vahoo.com] Sent: Thursday, July 18, 2013 12:13 PM To: Nelson, Christine Subject: Re: Charlestown Plantation I could have them to you Monday morning when I come for the working group meeting. If that's ok let me know and 1 will get them to you. Michael C. Gallant, PE PO Box 4039 Surf City, NC 28445 910.448.1046 www.m ichael pal lantengi neer.com From: "Nelson, Christine" <christine.nelson(a)ncdenr.gov> To: Michael Gallant <gallantmc(o)vahoo.com> Sent: Thursday, July 18, 2013 11:37 AM Subject: RE: Charlestown Plantation Thanks! Actually, I have been assigned to review IC Life. It was going to be the next project I pick up. When do you think you might be able to submit the changes? 1 would like to review it in the next few days as I will be out for approx2 week starting the 251h. Christine Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties unless the content is exempt by statute or other regulation. From: MIchael Gallant rmailto:pal lantmc@yahoo.com] Sent: Thursday, July 18, 2013 1 1:30 AM To: Nelson, Christine Subject: Charlestown Plantation Christine, See the �second —page second paragraph. Anything else just let me know. Also, a\ `re you looking.at-[ e?' If you are or know who is that may change ever so slightly. There are 9 lots and a pool area and the developer would want 10 lots and no pool area the BUA per lot would change from 2052 to 2034 sf. Everything else would stay the same. I could get the changes in before the review is done if no one has looked at it yet. Let me know. Thanks for all your help. Casmer, Jo From: Casmer, Jo Sent: Tuesday, June 25, 2013 10:21 AM To: 'gallantmc@yahoo.com' Subject: I C Life, Stormwater Permit SW8 121103 The Wilmington Regional Office of the Division of Water Quality received the Stormwater Permit Application and $505.00 fee on June 12, 2013. Your project will be assigned to a staff member and reviewed within 75 days of receipt. You will be notified if additional information is needed. Please be advised that the construction of built -upon area may not commence until the Stormwater Permit is issued. We have no email address for the owner so we ask that you please advise them on this status update. Jo Cesmer Administrative Assistant for the Division of Water Quality NC Department of Environment & Natural Resources Division of Environmental Assistance & Customer Service 127 Cardinal Drive Extension Wilmington, NC 28405 Phone: (910) 796-7336 Fax: (910) 350-2004 Email correspondence to and from this address may be subject to the North Carolina Public Records taw and may be disdosed to third parties Completeness Review Checklist Project Name: Project Location: Rule(s) 20tt08 Coastal 5 Type of Permit: ew or ti Density: HD or LD %: a3.3 (%OK?) Subdivided?: Sy 1visignn Paperwork 1995 ,_ Permit Type: Commercial or Aside`latial Stream Class:\AtD� ®SA Map Single Lot nORW Ma Emailed Engineer on: Received Date: t Accepted Date: (;; /ld-j 1"� Universal 01988 Coastal la I103 �PE Cert on File? to SW8 ®Supplement(s) (1 original per BMP) BMP Type(s): `-bco '?oN D To L.5wE5 (sAt ) ®O&M with correct/original signatures (1 original per BMP except LS/VFS and swoles) QC-(;�c+ V� pplication with correct/original signa�os',, yv \o, (tNo Luc/iec eed IDQltn� l l �stay� �rp or LLC: Sig. Auth. er S letter o ®Email Address: Design Engineer �505 (within 6mo) • ®Email Address: Owner ®Soils Report O� Note to Reviewer: is (si ed) �� • OUs errors • ` monAa PCIW f sLb : _ 1 Plans TV t i ❑Z S ®Grading _�1 ®Vicinit �Iti(�pV Legend _ nonom: Visited: Additional Information: Permitted \ UA (sf) (sf) (el) 11NT (el) 1th (ft) Town h)CT S ( camas W IdcVA d . "/'hd 4. 10'r ctly vet 4V P. Rorr ANIP ff c walks, BMPs, Buildings, etc) Aw KW MAO Wetlands imensions) o� _ `% WhU Offsite V I ' (f- oils Report � ex Masi Lot #:�jWT ZA ��for Ma t# M� ste P: ster): sf fpffsitek �A sf � o•e!V• ���!w §d;.�„ _�'�`�q,�,` `i:_' `� �:� • 'ham • �'.. Y ^'• � `�' //� � ..pp.. �� tr �t rj 'frA G 4. pot) �•;+ .44 �,,. �1' + , a , � t I a� •g `ta b 10Ct 401 V Ike 41-16 ellkJ tltlT (M_ ,gC� • 4'1"d` Fr t '� fe '`t✓,. #, 1, •�+"�1 A way ^;:rye ' cF' I Vy 't r. 44 A,&y ,�k • 1-f,a• ' •`` F,: • "fit! o a Ara. f ttZfi t:. Johnson, Kelly From: Johnson, Kelly Sent: Thursday, June 13, 2013 12:38 PM To: 'Michael Gallant' Subject: RE: I C Life Storrriwater Application Michael, I talked to Georgette about this situation. We are going to accept the project, and the reviewer will contact the "other half/the HOA/SW8 121104" about what to do for that site. This is a tricky situation. Thanks, Kelly From: MIchael Gallant [mailto:gallantmc(d)vahoo.com] Sent: Wednesday, June 12, 2013 3:14 PM To: Johnson, Kelly Subject: Re: I C Life Stormwater Application When I did my file review I had a hard time figuring out just what part of the project they were addressing. At first it appeared that they were only collecting water on my client's half. I did not see how the collector swales were connecting to the proposed system. There seems to be a lot of pervious concrete and I see a tench that feeds the pump station but I am not sure how the water gets there. I do not see a road cross section on the original plans provided me by my client. It appears that some of the water was supposed to infiltrate through the pervious pavement to the ground below. I also did not see any spot elevations, contours or flow arrows for the driveway and road areas. Michael C. Gallant, PE PO Box 4039 Surf City, NC 28445 910.448.1046 www. in ichaeleallantengineer. coin From: "Johnson, Kelly" <kellv.pJohnsonCcDncdenr.gov> To: MIchael Gallant <gallantmcta7yahoo.com> Sent: Wednesday, June 12, 2013 1:26 PM Subject: RE: I C Life Stormwater Application From what I gather it was foreclosed, and the bank split it into two owners. The issue is that the BMP for the original is on your client's side, and so the question becomes what to do with the I-IOA side's water if that 13MP "goes away". I am still going through it but the DA map from 2006 is odd. It is going to take some work to figure out what is supposed to drain where, and then to figure out what to do about it if that changes. I figured you were only working for `9talf', but I thought I would check to see if you knew what the other side was doing. The 11 /2012 letter asked the two sides to either 1.) Get a transfer from the original owner and then modify the permit to suit each side's needs, or 2.) Each side get their own permit. 1 will have to ask Georgette about what to do with a single side's application once 1 set a handle on the situation. Nothing is ever simple.. O Thanks, KJ From: MIchael Gallant [mailto:gallanunen.vahoo.coni] Sent: Wednesday, June 12, 2013 1:19 PM To: Johnson, Kelly Subject: Re: I C Life Stormwater Application Kelly, I do not know those folks. As far as I am aware it is an HOA. When 1 did my file review I saw that the pennit looked like it had been split into two permits. 1 assumed that the question of requiting permits was already put to all parties involved. Please let me know if I can help you in this matter. Michael C. Gallant, PE PO Box 4039 Surf City, NC 28445 910.448.1046 www.michaelgal lantentgineer.coin From: 'Johnson, Kelly" <kellv.12.iohnson(a;ncdenr.eov> To: Mlchael Gallant <kallantmcrcilvahoo.com> Sent: Wednesday, June 12, 2013 l 1:34 AM Subject: I C Life Stormwater Application Mike, Are you in any way associated with the other "half' of the original SW8 060716 Lattier Landing development, or do you know if there is a plan to get a permit for the other "half'? I need to figure out the best way to handle this administratively. It is unusual. Thanks, Kelly Kelly Johnson Kelly Johnson Environmental Engineer Division of Water Quality Stormwater Permitting 127 Cardinal Drive Extension Wilmington, NC 28405-3845 Office: 910.796.7331 Fax: 910.350.2004 Johnson, Kelly From: Johnson, Kelly Sent: Wednesday, June 12, 2013 2:15 PM To: Scott, Georgette Subject: Transfer Question - SW8 060716 (Lattier Landing) Georgette, This project was foreclosed, and the bank split it into two owners. We sent both sides a letter last fall asking them to either: 1.) Transfer the current permit to the two current owners, and then modify the permit to reflect the current subdivided state under separate permits. 2.) Apply for a new permits for each of the two subdivided parcels. We have received an application for one of the pieces, but not the other. The main issue is that the "half' that we have is the piece where the original BMP was going to be. Now, that "half' is changing the BMP and only treats its own water such that if we permit the half that has been submitted it leaves the other side in limbo without treatment. I think I will have to return the application because this doesn't offer a full solution to the problem. But, I wanted to verify this with you first because the application by itself could be a valid permit and the applicant for this permit doesn't have control over getting the other side to cooperate. Any thoughts on this? Here is a summary for the file (so I don't have to re-create this later): 1. 8/16/06: Originally issued to Michael Cole (private owner, no LLC or Inc.) 2. 10/3/12: Thomas Nelson called G. Scott. He had bought a portion of SW8 060716 from the bank. It had been foreclosed on. 3. 10/4/12: D. Cox inspected the site. It was under construction. 4. 11/6/12: K. Johnson mailed a letter: a. Addressed to the original permittee and created two new permit numbers (one for each half): i. SW8 060716: Michael Cole ii. SW8121103: Thomas Nelson (Phase Il: west side of SW8 060716 if it splits into two) iii. SW8121104: Lattier Landing Phase I HOA (Phase I: east side of SW8 060716 if it splits into two) b. Options: I. Transfer SW8 060716 to the two new owners, then mod ii. Apply for two new permits 5. 6/11/12: Received application for the SW8121103 portion (not including the SW8121104 portion). a. Rule Subject: i. Keep Old Rule per Previous Discussion: Per 5/6/13 discussion (8 email documentation), a project that applies for a new permit to replace an active HD permit can keep the old rule (1995 in this case) unless the modification is a major modification under the 2008 rule. 1. Impervious Increasing in 6/11/12 Application?: Previous application didn't split the impervious into these two sides. I don't know the amount that was permitted for each side in 2006. 2. BMP Size Increasing in 6/11/12 Application?: Changing BMP type (trench to pond) doesn't trigger this requirement alone. ii. This Application: Applied as HD under 2008 rules, subject to SA requirements. 1. Treatment is 90% wet pond to a LSNFS as the 2nd BMP 2. Percent Impervious: 23.3% (LID under 1995 b/c 25% max, but would probably be a POHD). iii. Note: The 6/11/12 application shows that it is a modification, but it is a new permit. It has a number already because it is registered (stormsub sent). b. Fate of SW8121104 Permit Area: i. 2006 Permit: This was a HD permit with an infiltration trench on the side that will be SW8 121103. So, if that trench is not built we have to figure out what to do with the water that was designed to drain to that trench. ii. 2006 BMPs: Infiltration trench (with a pump system) and permeable pavement. (But, permeable pavement isn't referenced in the permit text so I don't know for sure that it was part of the State Stormwater-required design. I also don't know if the impervious data is before or after the permeable pavement credit was applied.) iii. 2006 DA Map: 1. SW8 121103: Phase II (west side/Nelson): Included in the drainage area. 2. SW8 121104: Phase I (east side/HOA): The 2006 narrative says that the stormwater management plan only covers the area that was not yet constructed in 2006; buildings 101, 103, 105, and 107 and the surrounding area as shown in the DA map. The "existing" townhomes are excluded from the DA map (buildings 202, 204, 206, and 208). (It is unclear why this was done.) iv. 2006 Impervious Summary: The data was not split into two pieces (for Phase I and Phase.2), so I don't know the amount of impervious on the SW8 121104 (the HOA's) side. V-6LUjokVUS0lti Kelly Johnson Environmental Engineer Division of Water Quality Stormwater Permitting 127 Cardinal Drive Extension Wilmington, INC 28405-3845 Office: 910.796.7331 Fax: 910.350.2004 • + ,M Michael C. Gallant PE, PA Engineering / Consulting / Design Storm Water Permitting June 10, 2013 NCDENR-DWQ, WiRO 127 Cardinal Drive Wilmington, NC 28403 Attn: Kelly Johnson Re: I C Life Kelly, Please find the attached re -submittal package for the review of the above referenced project. If you have any questions please feel free to call me at 910.448.1046. The package includes in duplicate the following: • A check for $505. • The project plans and calculations. • A brief Narrative for the project. • The property deed. • NOAA Data for the site. • Completed applications, supplement forms and O and M forms. • USGS Quad Map with the site marked. • Stream classification data for the site. • NRCS Soils Report for the site. Sincerely, 0(� Mike Gallant, PE gal Iant in c@yahoo. corn tel 910.448.1046 ECEIVE JUN 112013 Br - P.O. Box 4039 Surf City, NC 28445 NC®ENR North Carolina Department of Environment and Natural Resources Division of Water Quality Beverly Eaves Perdue Charles Wakild, P. E. Dee Freeman Governor Director Secretary November 6, 2012 Mr. Michael Cole, SW8 060716 permittee 255-A 1 South Kerr St Wilmington NC 28403 Mr. Thomas Nelson (Owner, Plat 00440031) 3075 AB Carter Rd Fayetteville, NC 28312 Lattier Landing Phase 1 Homeowner's Assn Inc. (Representative, Plat 00400099) C/o Newbddge Bank PO Box 18807 Greensboro, NC 27419 Subject: Request for State Stormwater Management Permit Application SW8 060716 • Lattier Landing SW8121103 - Lattier Landing -Nelson Property, Plat 00440031 SW8121104 • Lattier Landing -Phase 1 HOA Property, Plat 00400099 Pender County Dear Property Owners and Representatives On November 1, 2012 staff of the Wilmington Regional Office of the Division of Water Quality performed a file review of State Stormwater Permit Number SW8 060716. Pender County property records show that the land covered by State Stormwater permit number SW8 060716 which was most recently issued on August 16, 2006 has been subdivided into the two subject parcels, and that each parcel is under new ownership. Copies of the county records have been included for your use. State Stormwater permits do not automatically transfer with the sale of the land. In order to continue coverage by a State Stormwater permit, please either: 1.) Transfer the current SW8 060716 permit from Mr. Cole to the two current owners and then modify the permit to reflect the current subdivided state under separate permits. A name/ownership change form is available on our website http://portal.ncdenr.org/web/wq/ws/su/statesw/forms_docs, or 2.) Apply for a new permits for each of the two subdivided parcels. Either a Stormwater Permit Application Package including 2 sets of plans, completed application form, fee, and supporting documentation, or a written response regarding the status of this project and the expected submittal date must be received in this Office no later than December 6.2012. Failure to respond to this request may result in the initiation of enforcement action, and construction may experience a subsequent delay. Wilmington Regional Office 127 Cardinal Drive Extension, Wilmington, North Carolina 28405 Phone: 910-796-72151 FAX: 910-350-20041 DENR Assistance: 1-877.623-6748 Internet: w .ncwaterquality.org NorthCarolina Natumliff An Equal Opportunity 1 ARrma6ve Action Employer If you have any questions, please do not hesitate to call Kelly Johnson, Environmental Engineer in the Wilmington Regional Office of the Division of Water Quality, (910) 796-7215. Sincerely, 57m Charles Wakild, P.E., Director Division of Water Quality GDS/kpj: S:IWQSIStormwater\Permits&Projects120061060716 HD1201211 req_SWapp 060716 GDS1kpj: S:IWQSIStormwaterlPermits&Projects120121121103 Registered1201211 req_SWapp 121103 GDS1kpj: S:IWQSIStormwater Permits&Prolects120121121104 RegisteredQ01211 req_SWapp 121104 enc: State Stormwater Permit SW8 060716 Property Records, Plat 00440031 Property Records, Plat 00400099 cc: Georgette Scott, DWQ WiRO Stormwater File Page 2 of 2 Map Page 1 of 1 Scale: 1:100 / ��Py16l - 0 a,91WItG/ PIN: 4235.61-0979-0000 NAME: NELSON THOMAS W et al ADDR: 3075 AB CARTER RD CITY: FAYETTEVILLE STATE: NC ZIP: 28312 PROPERTY ADDRESS: 401 WATERWAY LN PROPERTY DESCRIPTON: 2.52 AC PB 44/31 COMMON AREA DATE:10/3/2012 SALE PRICE: Null PLAT: 00440031 ACCOUNT: 950637.000000 TOWNSHIP: 102 TNSH DESC: TOPSAIL ACRES: 2.52 LAND VALUE: $456,000.00 BUILDING VALUE: $80,441.00 TOTAL VALUE: $536,441.00 DEFERRED VALUE:$0.00 SUBDIVISION: LATTIER LANDING ZONE: RSM TAX CODES: G01 CS3 R40