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HomeMy WebLinkAboutWPO200400087 Review Comments 2004-11-05 ‘OY � �'IRGINIP COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 Project: WPO-2004-087,Longacre Subdivision, SWM Plan Plan preparer: Mr.Nat Perkins,NP Engineering (fax 434.823.9746) Owner or rep.: Mr.Nat Perkins,Bend Properties LLC (fax 434.823.9746) Date received: 07 October 2004(plan rev. date 07 October 2004) Date of Comment: 05 November 2004 Lead Engineer: Allan Schuck,Engineer The SWM plan for Longacre Subdivision received on 04 November 2004 has been reviewed. The Engineering review recommends approval of the SWM plan. A. Stormwater management plan comments: (Allan Schuck) Reviewed under WPO-2004-00087 by Jack Kelsey,PE 1. The applicant needs a completed stormwater management facilities maintenance agreement and fee. [17-323] 2. The SWM bond amount is$22,000.00 and needs to be posted by the applicant. Please contact Ms. Pam Shifflett at 296.5861 about bond. Copy: WPO-2004-00084 ESC, SUB-2004-00266 Plat,WPO-2004-00100 Mitigation Plan Yadira Amarante File:E3_wpo_ADS_04-087 Longacre Subdivision A it ( P P4-10vI - - have-- ‘ceeitliExi-4 cu/pa J�� co,AL,,---"i , 1 '. .. r-�Tii. ,r .(►( 08 zoo4) J way us-MP vinGINZs COUNTY OF ALBEMARLE ********************************************************************* The following facsimile message is being sent from: Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone: (434)296-5832 Fax: (434)972-4126 Date: 08 November 2004 Number of Pages(including cover): 2 Sent To: Mr.Nat Perkins, PE Fax: 434.823.9746 Phone: 434.531.5586 Sender: Allan Schuck RE: Longacre Subdivision Division: Community Development Message: Enclosed are the SWM review comments.The SWM plan,rev. dated 03 November 2004 has been reviewed and approved. The SWM bond needs to be posted and the SWM maintenance agreement needs to be submitted to Sherry Short for review. Thanks, fe020,6441ci Allan Schuck 401 McIntire Road,Room 227 � Charlottesville, Virginia 22902-4596 4111.00 (434)296-5832 Fax(434)972-4126 Project Name: La AG,Pf- Fq From(Name or Firm): ,c1 f�LikiEize, L Date: 11/41/0 (Please separate plans for review by different individuals) ❑ EROSION & SEDIMENT CONTROL PLAN or PLAIN AMENDMENT ❑ First Submittal ❑ Revision ❑ Additional copies only -narrative(2 copies) - narrative(2 copies) (usually after approval) -plan(2 copies) - plan(2 copies) -application and fee ❑ STREAM BUFFER MITIGATION PLAN ❑ First Submittal ❑ Revision -plan(2 copies) - plan(2 copies) -application and fee • STORMWATER MANAGEMENTBMP PLAN ❑ Conceptual Plan ❑ First Submittal VRevision -plan(2 copies) - plan(2 copies) -plan(2 copies) -computations;water quality -computations;water quality, -computations as revised (2 copies) hydrology,hydraulics,map(2 copies) (2 copies) -application and fee ❑ ROAD PLAN (PUBLIC OR PRIVATE) (all items, 2 copies for private roads, 5 copies for public) ❑ First Submittal ❑ Revision ❑ As-built -plan -plan -plans -pavement design sheets -pavement sheets -plats -computations(&maps) -computations ❑ FINAL SITE PLAN OR AMENDMENT (First Submittals are to the Development Process Manager) ❑ Revision -plans(3 copies, incl.retaining walls if applicable) -computations as revised(2 copies) ❑ CERTIFIED ENGINEERS REPORT (addressing each performance criteria of the Zoning Ordinance) ❑ First Submission ❑ Revision -letter and documentation -plans or sketches ❑ CBR REPORTS ❑ Public Roads ❑ Private Roads -pavement design sheets -pavement design sheets (4 copies) (1 copy) ❑ TRAFFIC STUDIES O Public Roads 0 Private Roads (2 copies) (1 copy) BEND PROPERTIES LLC November 4,2004 Mr.Allan Schuck Albemarle County Department of Engineering 401 McIntire Road Charlottesville,VA 22901 RE: Longacre Farm Revised Stormwater Management Plan—WP0200400087 Dear Mr. Schuck, I received your comments dated November 3,2004 and have made the following revisions to address these comments. Plan Sheet: 1) Revised the plan to specify EC-3 Type B ditch lining; 2) Provided a typical planting layout and plant schedule to the SWM plan as per option 1 in the comments; I trust these revisions adequately address your comments and I want to thank you in advance for your time and consideration in this matter. If you have any questions,please feel free to contact me at(434)531- 5586. Sinc rely • tY Manager 1850 BROWNS GAP TURNPIKE • CHARLOTTESVILLE, VA 22901 PHONE• 434-823-1228 • FAX• 434-823-9746 U$ srry-9� rfo NIRG�t, COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 Project: WPO-2004-087, Longacre Subdivision, SWM Plan Plan preparer: Mr.Nat Perkins,NP Engineering (fax 434.823.9746) Owner or rep.: Mr.Nat Perkins,Bend Properties LLC (fax 434.823.9746) Date received: 07 October 2004 (plan rev. date 07 October 2004) Date of Comment: 03 November 2004 Lead Engineer: Allan Schuck, Engineer The SWM plan for Longacre Subdivision received on 07 October 2004 has been reviewed. The Engineering Depaitnient does not recommend approval of the SWM plan until the following items are addressed: A. Stormwater management plan comments: (Allan Schuck) Reviewed under WPO-2004-00087 by Jack Kelsey, PE 1. Please make the required changes on the SWM plan asked for by Mr. Jack Kelsey, PE and resubmit two(2) copies of the SWM plan. Mr. Kelsey's review comments are shown below. 2. The applicant needs a completed stormwater management facilities maintenance agreement and fee. [17-323] 3. The SWM bond amount is $22,000.00. Please contact Ms. Pam Shifflett at 296.5861 about bond. Mr. Kelsey's review comments for the stormwater management plan for Longacre Subdivision. Allan, I have reviewed the stormwater control plan and computations. In concept he has followed the buffer enhancement and adequate channel alternative that I suggested, based on the discussion of this issue by staff. However, the comments below will need to be addressed before we approve this plan. Adequate Channel Computations The velocity computations provided by Mr. Perkins (V=Q/A) assume the full cross-sectional area and wetted perimeter of the channel is used for both the 10-year and 2-year flows. However, the channel is not flowing full and this changes the velocities. Using a Mannings Equation based program I computed the depths and velocities below. d10 = 0.95' V10 = 8.43 fps • d2 = 0.86' V2 = 7.87 fps Therefore, the 2-year velocity exceeds the limit for EC-3 Type A. The plan will need to specify EC-3 Type B which has a velocity range of 7— 10 fps. Stormwater Control Plan Mr. Perkins needs to include the same information for the "Stormwater Planting Area" that we required him to provide for the "Buffer Enhancement" on the stream buffer mitigation plan. The note in the lower right corner does not adequate address the layout, type and quantity of plantings. Mr. Perkins has two alternatives for providing the information. Option 1: Provide a "typical planting layout" detail and "plant schedule" on the Stormwater Control Plan, similar to that provided on the Stream Buffer Mitigation Plan; OR Option 2: On the Stormwater Control Plan, add a note to the "Stormwater Planting Area" referring to the mitigation plan for the planting details. Then revise the Stream Buffer Mitigation Plan to: 1. Show and label the "Stormwater Planting Area". 2. Change the title of Schedule #1 to "Mitigation and Stormwater Planting Area Plantings". 3. Revise the "total counts" in Schedule #1 to reflect the plantings need for the Stormwater Planting Area. Sincerely, Jack M. Kelsey, PE County Engineer Copy: WPO-2004-00084 ESC, SUB-2004-00266 Plat Yadira Amarante File: E2_wpo_ADS_04-087 Longacre Subdivision 76V A4411101 L8 (A�X n�ms I _pj teT®'-® `� IS 13 vinciNt�' COUNTY OF ALBEMARLE ********************************************************************* The following facsimile message is being sent from: Department of Community Development 401 McIntire Road, Room 227 Charlottesville, Virginia 22902-4596 Phone: (434)296-5832 Fax: (434) 972-4126 Date: 03 November 2004 Number of Pages(including cover): 3 Sent To: Mr. Nat Perkins, PE Fax: 434.823.9746 Phone: 434.531.5586 Sender: Allan Schuck RE: Longacre Subdivision Division: Community Development Message: Enclosed are the SWM review comments. The SWM portion of the Water Protection Bond referenced by this plan is$22,000.00. The SWM portion of the Water Protection Bond referenced by the mitigation plan is$3,000.00. Please make the needed changes and resubmit two(2)copies of the revised SWM plans. Thanks, Allan Schuck PROJECT NAME: Longacre Subdivision FILE#: WPO-2004-00087 DATE APPROVED: SWM Plan dated 07 October 2004(NOT APPROVED) BMP Type Blo-filter and Buffer Enhancement Item Unit Amount Unit Cost Subtotal site clearing acre 1 $7,100.00 $7,100.00 dam const.on site material cubic yard 0 $4.00 $0.00 dam const.off site material cubic yard 0 $15.00 $0.00 Trees&Shrubs seedlings planted with tubes 210 $12.50 $2,625 wq treatment bioretention construction volume in cf 0 $6.40 $0 trees&shrubs ball/burlap planted 5 $100.00 $500 wetland plants planted 0 $2.00 $0 wetland seed mix acre $1,500.00 $0 stream stabilization linear foot 0 $50.00 $0 underdrain stone cubic yard 25 $17.00 $425 underdrain pipe,4"PVC linear foot 50 $1.35 $68 filter fabric square yard 25 $10.00 $250 sand/soil mixture cubic yard 50 $20.00 $1,000 Filterra 6x6 each 0 $6,100.00 $0 Filterra 4x6 each 0 $5,500.00 $0 Filterra 12x6 each 0 $12,100.00 $0 EC-1 outlet protection each 1 $200.00 $200 class 1 rip-rap square yard 0 $55.00 $0 class 2 rip-rap square yard 0 $110.00 $0 48"concrete riser structure each 0 $1,000.00 $0 Stream Buffer Sign Installed each 0 $50.00 $0 EC-2 EC-3 ditch stabilization linear foot 100.00 $10.00 $1,000 maintenance road linear foot 20.00 $8.00 $160 Concrete pipe linear foot $25.00 $0 EC-3,EC-2 matting square yard 0.00 $10.00 $0 gabions,class 1 rip-rap square yard 25.00 $165.00 $4,125 concrete anti vortex each $1,500.00 $0.00 paved concrete ditch linear foot 0.00 $55.00 $0 pavement demolition square yard $5.00 $0 green roof square foot 0.00 $12.00 $0 turf stone(porous pavement) square foot $5.00 $0 RCP underground detention cubic foot installed $7.00 $0 Conser Easement RR>50% acre 0.00 $39,000.00 $0 Conser Easement RR<50% acre 0.00 $25,000.00 $0 Pond drain gate valve(6") each 0.00 $500.00 $0 Delaware Sand Filter linear foot installed $706.00 $0 Flow Splitter each installed $2,000.00 $0 SUBTOTAL $17,453 25%Contingency $4,363 TOTAL $21,816 ROUNDED TOTAL $22,000 MINIMUM TOTAL AFTER REDUCTION $4,400 Page l of 1 Jack Kelsey From: Jack Kelsey Sent: Wednesday, November 03, 2004 12:07 PM To: Allan Schuck Subject: Longacre Allan, I have reviewed the stormwater control plan and computations. In concept he has followed the buffer enhancement and adequate channel alternative that I suggested, based on the discussion of this issue by staff. However, the comments below will need to be addressed before we approve this plan. Adequate Channel Computations The velocity computations provided by Mr. Perkins (V=Q/A) assume the full cross-sectional area and wetted perimeter of the channel is used for both the 10-year and 2-year flows. However, the channel is not flowing full and this changes the velocities. Using a Mannings Equation based program I computed the depths and velocities below. d10 = 0.95' V10 = 8.43 fps d2 = 0.86' V2 = 7.87 fps Therefore, the 2-year velocity exceeds the limit for EC-3 Type A. The plan will need to specify EC-3 Type B which has a velocity range of 7 — 10 fps. Stormwater Control Plan Mr. Perkins needs to include the same information for the "Stormwater Planting Area" that we required him to provide for the "Buffer Enhancement" on the stream buffer mitigation plan. The note in the lower right corner does not adequate address the layout, type and quantity of plantings. Mr. Perkins has two alternatives for providing the information. Option 1: Provide a "typical planting layout" detail and "plant schedule" on the Stormwater Control Plan, similar to that provided on the Stream Buffer Mitigation Plan; OR Option 2: On the Stormwater Control Plan, add a note to the "Stormwater Planting Area" referring to the mitigation plan for the planting details. Then revise the Stream Buffer Mitigation Plan to: 1. Show and label the "Stormwater Planting Area". 2. Change the title of Schedule #1 to "Mitigation and Stormwater Planting Area Plantings". 3. Revise the "total counts" in Schedule #1 to reflect the plantings need for the Stormwater Planting Area. Sincerely, Jack M. Kelsey, PE County Engineer Community Development Department County of Albemarle, Virginia jkelsey@albemarle.org (434)296-5861 ext 3376 11/3/2004 �� ALA t IRGINZP COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 Project: WPO-2004-100, Longacre Subdivision, Stream Buffer Mitigation Plan Plan preparer: Mr.Nat Perkins,NP Engineering (fax 434.823.9746) Owner or rep.: Mr.Nat Perkins, Bend Properties LLC (fax 434.823.9746) Date received: 12 October 2004 (plan rev. date 11 October 2004) Date of Comment: 15 October 2004 Lead Engineer: Allan Schuck, Engineer The stream buffer mitigation plan,rev. date 11 October 2004,has been reviewed. The engineering review recommends approval to the mitigation plan. A.Mitigation Plan comments: (Allan Schuck) Reviewed under WPO-2004-00100 1. All previous review comments appear to be adequately addressed with this submission. 2. The mitigation portion of the SWM plan bond amount is$3,000.00. It shall become a part of the whole Water protection bond amount. Please contact Ms. Pam Shifflett with any comments or questions concerning this bond. Copy: WPO-2004-00087 SWM, SUB-2004-00266 Plat Yadira Amarante File: E2_wpo_ADS_04-100 Longacre Subdivision Mitigation BEND PROPERTIES LLC October 6,2004 Mr.Allan Schuck Albemarle County Department of Engineering 401 McIntire Road Charlottesville,VA 22901 RE: Longacre Farm Revised Stormwater Management Plan—WP0200400087 Dear Mr.Schuck, I received your comments dated September 21,2004 and have made the following revisions to address these comments. 1) The detention waiver will be granted(per my discussions with Jack Kelsey on 9/24/04)if an adequate channel is provided from the outflow of the SWM Bio-filter to the stream and if stream buffer plantings are provided to reduce stormwater runoff effects.Based on this discussion,I have shown in the attached calculation sheets and on the revised SWM plan the proposed ditch and required lining and have provided buffer enhancement plantings totaling approximately 8,000 sf (area of impervious area from road not draining to the bio-filter).This planting will have the same schedule and specifications as the mitigation plantings for the driveway encroachment into the stream buffer for Lot 2. 2) Calculation sheet shows the volume of the bio-filter adequate to capture the first'/2 inch of runoff from the impervious area draining to the bio-filter. 3) The drainage area of the bio-filter is shown on the drainage area map as provided. 4) Calculations show the bio-filter to meet the 2.5%rule of impervious area. 5) The bio-filter can be built as shown on the SWM plans.The intent is to replace the soil from the temporary EC basin back to the original ground elevations.Grading will be per the details of the bio-filter with side slopes and bottom dimensions as shown on the plans. 6) Required note as stated has been added to the SWM plan. 7) Applicant will complete stormwater management facilities maintenance agreement and fee as soon comments on plan are completed. 8) Applicant is awaiting SWM bond amount to post. I trust these revisions adequately address your comments and I want to thank you in advance for your time and consideration in this matter. If you have any questions,please feel free to contact me at(434)531- 5586. Sinc ly, Manager 1850 BROWNS GAP TURNPIKE • CHARLOTTESVILLE, VA 22901 PHONE: 434-823-1228 • FAX: 434-823-9746 Charlottesville, Virginia 22902-4596 v11_•,..,�: ai (434)296-5832 Fax(434)972-4126 � V O L Project Name: From(Name or Firm): P 'i,,} Date: 101 (i) ( Ott (Please separate plans for review by different individuals) ❑ EROSION & SEDIMENT CONTROL PLAN or PLAN AMENDMENT ❑ First Submittal ❑ Revision ❑ Additional copies only -narrative(2 copies) - narrative(2 copies) (usually after approval) -plan(2 copies) - plan(2 copies) - application and fee ❑ STREAM BUFFER MITIGATION PLAN ❑ First Submittal ❑ Revision -plan(2 copies) - plan(2 copies) ' ,��//� - application and fee L1"STORMWATER MANAGEMENT/BMP PLAN � ❑ Conceptual Plan ❑ First Submittal !__" vision -plan(2 copies) - plan(2 copies) -plan(2 copies) - computations; water quality -computations; water quality, -computations as revised (2 copies) hydrology,hydraulics, map(2 copies) (2 copies) - application and fee ❑ ROAD PLAN (PUBLIC OR PRIVATE) (all items, 2 copies for private roads, 5 copies for public) ❑ First Submittal ❑ Revision ❑ As-built -plan -plan -plans -pavement design sheets -pavement sheets -plats -computations (&maps) -computations ❑ FINAL SITE PLAN OR AMENDMENT (First Submittals are to the Development Process Manager) ❑ Revision -plans (3 copies, incl. retaining walls if applicable) - computations as revised(2 copies) ❑ CERTIFIED ENGINEERS REPORT (addressing each performance criteria of the Zoning Ordinance) ❑ First Submission ❑ Revision - letter and documentation -plans or sketches ❑ CBR REPORTS ❑ Public Roads 0 Private Roads -pavement design sheets -pavement design sheets (4 copies) (1 copy) ❑ TRAFFIC STUDIES O Public Roads ❑ Private Roads (2 copies) (1 copy) OCT.0 7.2004 WATER RESOURCES AND STORMWATER CHAPTER 5 storm or less. In those cases, it is necessary to control the rate and velocity from smaller storms in order to address stream channel erosion. This requirement will be applied on a site-specific basis in critical watersheds that are identified by the Department of Engineering. 2. Exemptions It is very important during project planning to ascertain whether a certain activity is exempt from detention requirements or whether an exemption from the Engineering Department is warranted and/or advised. Code 17-314(f) describes the specific categories that are exempt from the detention requirements. Code 17-314(g) describes an exemption that may be granted by the program authority provided specific conditions are met. The intent of this exemption is to protect and preserve natural stream channels within a rural development to the extent achievable. The County is making the value judgment that it is preferable to maintain streams in their natural state rather than impounding them for the purposes of providing detention, if detention would have marginal downstream benefits, and/or is not warranted to protect public health and safety. For exemptions granted under authority of this subsection, it is critical to demonstrate that the stream channels can be protected from runoff and erosion. 3. Waiver of Detention Basins per Code 17-314(g) It is acknowledged that the construction of detention basins often involves disturbance of existing vegetated areas and encroachment into stream channels and drainage networks. In granting such an exemption, it is essential that the stormwater design address issues of adequate channels and the concentration of runoff. In many cases, it will be necessary to provide energy dissipaters, level spreaders, or other mechanisms to ensure that runoff does not damage the stream channels that are to be protected. The program authority will require these measures, when necessary, as a condition for granting a detention exemption under this subsection. 4. Waiver of Detention for Large Lot Divisions per Code 17-314(g) This waiver may be granted for residential subdivisions with lots greater than 2 acres when determined there is no reasonable collection point to capture stormwater runoff from the roadways, driveways and roofs; and that the collection and discharge of the runoff in concentrated form would be more detrimental than the dispersed discharges or sheet flow prevalent in these subdivisions. In the review and approval of a waiver request, the program authority may consider and/or require stream buffer enhancements or other alternative mitigation measures deemed appropriate. 01 September 2004 Revised Design Standards Manual 5 - 24 COUNTY OF ALBEMARLE Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone(434)296-5832 Fax(434)972-4126 Project: WPO-2004-087,Longacre Subdivision, SWM Plan Plan preparer: Mr.Nat Perkins,NP Engineering (fax 434.823.9746) Owner or rep.: Mr.Nat Perkins,Bend Properties LLC (fax 434.823.9746) Date received: 20 August 2004(plan date 20 August 2004) Date of Comment: 21 September 2004 Lead Engineer: Allan Schuck,Engineer The SWM plan for Longacre Subdivision received on 20 August 2004 has been reviewed. The Engineering Department does not recommend approval of the SWM plan until the following items are addressed: A.Stormwater management plan comments: (Allan Schuck) Reviewed under WPO-2004-00087 1. The engineering review is not granting a waiver from the detention requirements of Chapter 17- 314 for this project. Please provide detention with the proposed SWM facility,which will include the submission of routing computations through the SWM facility. [17-317] 2. As specified in the VSMH,please provide volume computations for the SWM facility that shows enough volume is available to capture the first''Y2 inch of runoff from the impervious areas. 3. Please show the drainage area for the biofilter on the SWM plans. 4. The surface area of the biofilter,containing the soil mix,needs to be at least 2.5%of the impervious areas.Please provide the area computations that show this occurs. It was hand written that 8143 SF of area is required,but only 475 SF is shown on the SWM plan. 5. It does not appear the biofilter can be built as shown on the SWM plans. (a) Please show the needed grading to build the biofilter on the SWM plans. Please (b) Please label the dimensions of the soil mix area. This is required to show that 2.5%of the impervious area is available. (c) It appears that a dam might be needed at the downstream section of the biofilter. 6. Please add the following note to the SWM plan: Contractor shall contact the water resources inspector 24 hours prior to backfilling the biofilter and request an inspection and approval under- drain installation and the soil mix. 7. The applicant needs a completed stormwater management facilities maintenance agreement and fee. [17-323] 8. The SWM bond amount has not been determined at this time. Copy: WPO-2004-00084 ESC, SUB-2004-00266 Plat Yadira Amarante File:E1_wpo_ADS_04-087 Longacre Subdivision A X IIn) & ',i1 21 c �. ,�. j3; l3 © -" `IRGINiP COUNTY OF ALBEMARLE ********************************************************************* The following facsimile message is being sent from: Department of Community Development 401 McIntire Road,Room 227 Charlottesville,Virginia 22902-4596 Phone: (434)296-5832 Fax: (434)972-4126 Date: 21 September 2004 Number of Pages(including cover): 3 Sent To: Mr.Nat Perkins,PE Fax: 434.823.9746 Phone: 434.531.5586 Sender: Allan Schuck RE: Longacre Subdivision Division: Community Development Message: Enclosed are the ESC review comments, sent to you yesterday via E-mail, and the SWM review comments. The mitigation plan has not been reviewed. Please make the needed changes and resubmit the plans. Thanks, Allan Schuck Page 1 of 4 Glenn Brooks From: Nat Perkins [nperkins@cms-builds.com] Sent: Wednesday, September 22, 2004 5:08 PM To: Glenn Brooks Cc: Mark Graham; Alan Schuck Subject: FW: detention waiver request Longacre Subdivision Importance: High Glenn. I did not hear from you today in response to my previous email so I am providing justification for the waiver request for stormwater detention. Per Section 17-314G of the ordinance(and my previous meeting with Mark Chambers): 1)The site is in a water supply protection area; 2)Historically,the County has granted stormwater detention waiver requests for large lot rural subdivisions.Due to how spread out a rural subdivision may be,it is difficult to catch most or all of the stormwater.Typically,the amount of disturbance to install and size of the structure would not be in the best interest of the public for the benefits received. 3)The proposed bio-filter will satisfy the stormwater quality aspects of ordinance. 4)Due to the large lot size,the proposed stormwater bio-filter will not"draw attention"to it but a large stormwater detention basin would. Based on precedence,I am requesting that this issue be considered.As I mentioned in a previous email,I am very anxious to begin this project and want to cut to the chase on what is required for approval.I additionally request that we sit down and discuss this by the end of the week so that can be resolved as expeditiously as possible. Your attention to this matter would be greatly appreciated.I can be reached at 531-5586(mobile)to schedule a meeting. Thanks. Nat Original Message From: Nat Perkins [mailto:nperkins@cros-builds.com] Sent: Wednesday, September 22, 2004 10:05 AM To: Glenn Brooks Subject: RE: detention waiver request Longacre Subdivision Glenn, Thanks for the response.Next Thursday or Friday will be too late.As mentioned,I need to make revisions and submit so I can start on Oct 1.Do you have time later today? Nat Original Message From: Glenn Brooks [mailto:GBROOKS@albemarle.org] Sent: Wednesday, September 22, 2004 9:25 AM To: 'nperkins@cros-builds.com' Cc: Jack Kelsey; Mark Chambers; Allan Schuck Subject: RE: detention waiver request Longacre Subdivision Please put your reasons in writing before we meet, so we have time to consider your justification, and so you do not feel that your reasons are"lost" in future when the right people are not present, or not all agree on what might have been said. Certainly we do not dictate"it will be"(!) The ordinance language, as stated below, is fairly clear. I must follow it. 9/24/2004 Page 2 of 4 The earliest I could meet would be next week on Thursday or Friday. Mark Chambers, Allan, and probably Jack should be there, so the time would have to work around their schedules also. From: Nat Perkins [mailto:nperkins@cros-builds.com] Sent: Wednesday, September 22, 2004 9:04 AM To: Glenn Brooks Cc: Alan Schuck Subject: RE: detention waiver request Longacre Subdivision Glenn, Thanks for the email response but I am disappointed that the goal of my objection to the decision was lost. As I had discussed with Alan earlier this morning, I would like an opportunity to sit down and discuss what can be done on this project rather than having it dictated that"it will be"! I spent time with Mark Chambers discussing this site,how I could meet the County requirements,and what would be a reasonable plan. I discussed with Mark the reasons of the waiver request. I would like the opportunity to discuss with you,or Alan,or whomever is reviewing my plan,a course of action that meets the County requirements,based on the merits of the project. I would like to set up a meeting sooner than later,I have contracted with a site contractor for beginning work on October 1. I can he reached at 531-5586. Thanks. Nat Original Message From: Glenn Brooks [mailto:GBROOKS@albemarle.org] Sent: Wednesday, September 22, 2004 7:27 AM To: 'Nat Perkins' Subject: RE: detention waiver request Longacre Subdivision From: Glenn Brooks Sent: Tuesday, September 21, 2004 4:09 PM To: 'nperkins@cms-builds.com' Cc: Allan Schuck; Mark Chambers Subject: RE: detention waiver request Longacre Subdivision Mr. Perkins, Allan brought your waiver request to me, since I am now acting as the Program Authority of the Water Protection Ordinance for those plans reviewed by Current Development. Since this was my decision, I will attempt to answer your question, although I anticipate by your request to involve the Director of Community Development, that it is not so much a question, as it is an objection. Please be aware that your process for appeal, or objection, should be first to the County Engineer, Jack Kelsey, and then to the Board of Supervisors according to 17-311 of the Water Protection Ordinance. First, your request provided no justification, or even any statement as to why this development should be granted a detention waiver. We tried to evaluate the plans submitted on their own merits. 9/24/2004 Page 3 of 4 Second, under item 17-317G.2, of the Water Protection Ordinance, it must be demonstrable that the"application of the requirements of this article would cause damage to the environment to an extent which exceeds the benefits of the strict application of all the requirements of this article;" After examining your plan and discussing it with other staff members, I felt that providing detention would not be damaging, or especially difficult, since the proposed biofilter/basin/silt-trap conversion is already proposed to capture runoff from the entire roadway. It would not involve significantly more grading or disturbance. As to your discussion with Mark Chambers; he is away at a conference until Friday. It is unfortunate if he gave you the wrong impression, but I have not had the opportunity to discuss it with him yet. I will when he returns. I can tell you that each of these waivers is examined for its unique circumstance. For example, these waivers have been granted in very close proximity to significant watercourses before, because the timing of peak flows does satisfy 17-317G.2, in that bad timing can give worse results (i.e. higher peaks). Usually, enhanced water quality measures are substituted. The proximity of your development to a major watercourse does not appear close enough to use this justification. I hope you find this helpful. Glenn Brooks, P.E. Albemarle County From: Allan Schuck Sent: Tuesday, September 21, 2004 3:18 PM To: Glenn Brooks Subject: FW: SWM review comments for Longacre Subdivision Importance: High From: Nat Perkins [mailto:nperkins@cros-builds.com] Sent: Tuesday, September 21, 2004 1:43 PM To: Mark Chambers; Allan Schuck Cc: Yadira Amarante; Bill Fritz Subject: RE: SWM review comments for Longacre Subdivision Importance: High Allan, I met with Mark Chambers regarding the SWM plan prior to submittal and he mentioned that the variance for detention could be supported based on previous actions. Could you re-evaluate this?1 would like to meet with you,Mark Chambers and Mark Graham to see why this variance for detention is not supported. Nat Original Message From: Allan Schuck [mailto:aschuck@albemarle.org] Sent: Tuesday, September 21, 2004 1:24 PM To: 'nperkins@cros-builds.com' Cc: Bill Fritz; Yadira Amarante Subject: SWM review comments for Longacre Subdivision 9/24/2004 Page 4 of 4 Nat: Here are the SWM review comments as submitted under review WPO- 2004-00087. Please make needed changes and resubmit the plans for another review. Thanks, Allan Schuck 9/24/2004 BEND PROPERTIES LLC August 20,2004 Albemarle County Engineering Department 401 McIntire Road,Room 218 Charlottesville,VA 22902 RE: SUB 04-023—Longacre Farm Stormwater Management Plan To Whom It May Concern: lam writing to request a waiver for the detention requirements for the aforementioned subdivision stormwater management plan as per Section 17-314G. I want to thank you in advance for your time and consideration in this matter. If you have any questions,please feel free to contact me at(434)531-5586. Sinter y, 41( Nat Per Bend Properties,LLC Manager 1850 BROWNS GAP TURNPIKE • CHARLOTTESVILLE, VA 22901 PHONE: 434-823-1228 • FAX: 434-823-9746