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HomeMy WebLinkAboutWPO201400030 Correspondence 2014-04-15 John Anderson From: John Anderson Sent: Monday, August 18, 2014 3:13 PM To: Scott Collins; Nena Cc: Glenn Brooks Subject: Planning Application Review for WPO201400030 Briarwood Underground Detention. Attachments: WPO201400030-briarwood underground wpo approval.pdf; WPO201400030—UG storage- Briarwood -081814rev-3.pdf The Review for the following application has been completed: Application Number=WPO201400030 Reviewer=John Anderson Review Status =Approved Completed Date =08/18/2014 Attached—Approval Memo 1 John Anderson From: Andrew Kellerman Sent: Wednesday, August 20, 2014 3:46 PM To: John Anderson Subject: RE: Briarwood WPO 2014-030 Excellent.Thanks. From: John Anderson Sent: Wednesday, August 20, 2014 2:08 PM To: Andrew Kellerman Cc: Glenn Brooks; Ana Kilmer Subject: RE: Briarwood WPO 2014-030 Yes, Approved 8/18. Ana is processing bond request- Thanks! From: Andrew Kellerman Sent: Wednesday, August 20, 2014 1:57 PM To: John Anderson Subject: Briarwood WPO 2014-030 John, Could you please provide a quick update on the status of this application? Thank you, Andrew Kellerman Code Enforcement Officer II County of Albemarle (434)296-5832 ext. 3415 1 John Anderson From: Scott Collins [scott @collins-engineering.com] Sent: Friday, August 15, 2014 12:52 PM To: John Anderson Cc: Nena; Glenn Brooks; Mark Graham; Todd Shifflett;Ana Kilmer; David Benish; Christopher Perez;Troy Austin; Adam Long; Graham Murray Subject: RE:WPO approval delayed-Briarwood John- I am just following up on Adam Long's conversation with you for the record. The removal of the riprap ditch in the right- of-way was a topic of discussion at the meeting on August 7th. Troy Austin with VDOT,who controls what improvements are constructed in the r/w,asked us to remove the riprap ditch during the meeting. Max Greene, in the meeting, concurred with Troy and we removed the ditch, as instructed in the meeting by VDOT. Collins Engineering takes great professional pride and goes to many steps to ensure that plans that are produced meet county regulations, and that we do not mistakenly or deliberately removed items prior to County approvals. I can assure you that this did not happen in this case as well, and we were instructed during the meeting to remove this riprap. We have very meticulous notes from this meeting, and we followed them completely with this last submission for approval. Please let me know if you need anything else from us, but I trust that once Troy confirms to you that this was done at his request,we can proceed forward with our approvals. Please feel free to call me directly today if you need to speak to me personally. Thank you again for the help with the Briarwood project. Scott Collins, PE Collins Engineering 434-987-1631 (cell) From:John Anderson [mailto:janderson2 @albemarle.org] Sent: Friday,August 15, 2014 12:01 PM To:Scott Collins Cc: Nena; Glenn Brooks; Mark Graham;Todd Shifflett;Ana Kilmer; David Benish; Christopher Perez;Troy Austin Subject:WPO approval delayed-Briarwood Scott, I do not understand why a feature that was not topic of discussion Aug-7 (VDOT, Planning, Engineering, Nena,Wendell, Collins Engineering/COB)and shown on plans left with me that day(site-WPO)would be revised. When the site plan is distributed for comment next week,we will request this feature be restored. I am required to review plans submitted Aug-8, plans I took to be identical with Aug-7 plans—that was the point of meeting,to present final plans. WPO bond estimates are not an issue. WPO review is. WPOs are not approved. When I wrote Aug-7, I had compared Aug-4 comments against plans left that day. I wrote Aug-7, not Aug-8. I must review WPOs submitted Aug-8. This cannot happen immediately. We have multiple deadlines. I had planned to finish this today. If you sense disappointment, it is worse. If reviews must start over each time—or if trust fails—the process strains to point of breaking. Ana, 1 I encountered revisions while preparing Ias WPO estimate. WPO bond estimates are based on plans left Aug-7, and presented as final. Plans, in one instance at least, have changed. I stated in writing I would approve WPOs today. I regret this cannot happen. I must retrieve WPO5 from Glenn's office, review for accuracy. I can't say when this will be. WPO approval is delayed. Thank you- John L.Anderson,PL I Civil Engineer II Department of Community Development 1 County of Albemarle,Virginia 401 McIntire Road I Charlottesville,VA 22902 434.296.5832 ext.3069 2 John Anderson From: Mark Graham Sent: Wednesday, August 13, 2014 7:07 PM To: John Anderson Subject: Re: var10-12-101227 Hi john, I'm comfortable with you going ahead with their bond once you think they have the issues addressed and just waiting for others. Sent from my iPad On Aug 12, 2014, at 9:17 AM, "John Anderson" <ianderson2 @albemarle.org>wrote: Thank you From: Nena [mailto:ulcwww@lembargmail.com] Sent:Tuesday, August 12, 2014 8:49 AM To: Glenn Brooks; John Anderson Subject: Fwd: var10-12-101227 Glenn/John, Please see below. Is there anyway you can accept this so we can get our WPO permit? They will not give me a date.They told me yesterday they have sent 1,000 letters and have 4000 to go. If they go alphabetical,we are on bottom if list. Would appreciate your help. Thanks, Nena Harrell Count your RAINBOWS not your THUNDERSTORMS Begin forwarded message: From: "Moore,Sarah (DEQ)"<Sarah.Moore @deq.virginia.gov> Date:August 12,2014,8:25:40 AM EDT To: "ulcwww @embargmail.com" <ulcwww @embargmail.com> Subject:var10-12-101227 Hi Nena, Received the check and have all the requirements for the reissue for Briarwood. Letters will be mailed over the next few weeks. Now- Thank you, Sarah Moore VA-DEQ 2 John Anderson From: Graham Murray[graham @collins-engineering.com] Sent: Wednesday, August 13, 2014 12:33 PM To: John Anderson Subject: RE: Briarwood Underground Detention Systems-Cost Estimates Attachments: FW: NEW PROJECT: Briarwood-Gas Station Plans CRM:0113030; FW: Briarwood Underground Detention- Filterra CRM:0110108 Good afternoon John, Please see the attached e-mails and cost estimates. Thanks, Graham From: John Anderson [mailto:janderson2Oalbemarle.orq] Sent: Wednesday, August 13, 2014 11:35 AM To: Graham Murray Cc: Glenn Brooks; Scott Collins; Nena Harrell; Ana Kilmer Subject: RE: Briarwood Underground Detention Systems- Cost Estimates Graham, Nena requested WPO bond estimates yesterday. Can you furnish estimates for Filterra units proposed for Briarwood, as you did for Contech? I recall you mentioned that Filterra units are installed by Mfr. Purchase of multiple units may also affect per unit price. I appreciate your anticipating need for installation expense for Contech. Could you do that for Filterra? Will AmeriCast install units, require contractor support that should be included in installation estimate? I want to prepare estimates quickly, accurately—SWM, ESC, channels E of U.S. 29 (road, UG detention,gas station plans; MS-19 for combined development [ESC ITEM]). Help with Filterra expense for road/gas station WPOs may help improve estimates. I appreciate your support. Thank you, Graham! John E.Anderson,PEI Civil Engineer II Department of Community Development I County of Albemarle,Virginia 401 McIntire Road I Charlottesville,VA 22902 434.296.5832 ext.3069 From: Graham Murray [mailto:graham@ collins-engineering.com] Sent: Friday, August 01, 2014 11:02 AM To: John Anderson Subject: FW: Briarwood Underground Detention Systems- Cost Estimates Good morning John, Please see below for the two Contech underground detention system cost estimates.Also,the three SWM sheets I e-mailed you yesterday evening are being dropped off to your attention as we speak. Thanks, Graham From: Lowell, Aaron M [mailto:ALowelk conteches.com] Sent: Friday, August 01, 2014 10:56 AM To: Graham Murray Cc: Vanderwarker, Brad Subject: RE: Briarwood Underground Detention Systems- Cost Estimates 1 Graham, I have put together cost estimates for the two detention systems. Please see below.The estimate is for the material cost and includes delivery to the job site.The estimates do not include installation. Please ballpark 75-100%of the material cost for installation. Briarwood—542 If of 66"CMP, 16 gage Estimated Cost:$42,275 Briarwood Gas Station—81 If of 120"CMP,12 gage Estimated Cost:$19,270 Let me know if you need anything else. Thanks, Aaron M.Lowell Stormwater Design Engineer Virginia,West Virginia, DC Contech Engineered Solutions LLC 605 Global Way,Suite 113 i Linthicum, MD 21090 Off:443-457-1509 Fax:410-740-8492 alowell@conteches.com www.ContechES.com From: Graham Murray [mailto:graham©collins-engineering.com] Sent:Thursday, July 31, 2014 1:50 PM To: Lowell, Aaron M; Vanderwarker, Brad Subject: RE: Briarwood Underground Detention Systems- Cost Estimates Second Cost Estimate From: Graham Murray Sent:Thursday, July 31, 2014 1:23 PM To: 'Lowell, Aaron M'; 'Vanderwarker, Brad' Subject: RE: Briarwood Underground Detention Systems- Cost Estimates First cost estimate From: Graham Murray Sent: Thursday, July 31, 2014 1:22 PM To: 'Lowell, Aaron M'; Vanderwarker, Brad Subject: Briarwood Underground Detention Systems- Cost Estimates Good afternoon Aaron and Brad, The County has requested two cost estimates for the installation and materials for the two proposed underground detention systems at Briarwood. Is this something you can provide me with,two separate costs?The County will use your estimates to establish the construction bonds and it doesn't have to be exact at this point. Due to file sizes, I will send two follow up e-mails with the PDF attachments for the two projects. If you do not receive these two follow up e-mails please let me know. Thanks, 2 Graham Graham Murray,P.E. COLLINS ENGINEERING www.collins-engineering.com 200 Garrett Street, Suite K Charlottesville,VA 22902 Cell: (434) 566-3011 grahamecollins-enaineerina.com The information contained in this message may be confidential and/or proprietary,and legally protected from disclosure.If the reader of this message is not the intended recipient.or an employee or agent responsible for delivering this message to the intended recipient,you are hereby notified that any retention, dissemination,distribution or copying of this communication is strictly prohibited. If you have received this communication in error,please notify us immediately by replying to the message and permanently deleting it from your computer.Thank you.Contech Engineered Solutions LLC 3 John Anderson From: Nena [ulcwww @embargmail.com] Sent: Tuesday, August 12, 2014 8:49 AM To: Glenn Brooks; John Anderson Subject: Fwd: var10-12-101227 Glenn/John, Please see below. Is there anyway you can accept this so we can get our WPO permit? They will not give me a date.They told me yesterday they have sent 1,000 letters and have 4000 to go. If they go alphabetical, we are on bottom if list. Would appreciate your help. Thanks, Nena Harrell Count your RAINBOWS not your THUNDERSTORMS Begin forwarded message: From: "Moore,Sarah (DEQ)"<Sarah.Moore @deq.virginia.gov> Date:August 12, 2014,8:25:40 AM EDT To: "ulcwww @embargmail.com"<ulcwww @embarqmail.com> Subject:var10-12-101227 Hi Nena, Received the check and have all the requirements for the reissue for Briarwood. Letters will be mailed over the next few weeks. Thank you, Sarah Moore VA-DEQ 1 Todd Shifflett From: Jenni Pack[jenni @collins-engineering.com] Sent: Friday, August 08, 2014 3:16 PM To: Todd Shifflett Subject: Re: WPO Re-submittals Hi Todd, Sorry about that. I will fill out an application for each of these sets of plans and get it signed. I'll send them back to you as soon as I can. Thanks, Jenni On Aug 8, 2014, at 3:07 PM, "Todd Shifflett"<tshifflett @albemarle.org>wrote: Good Afternoon Jenni, The below re-submittals need to have signed applications with them to be able to move through the process. I talked with John and he wasn't aware that Glenn had changed the application to capture re- submittals yet. It will be the same process that we used to follow where an application has to be submitted each time. If anything with that changes"again" later I will let you know. You can either drop them off or email them to me. WP02013-18—Briarwood Underground Detention WP02013-72—Briarwood Commercial Lots WP02014-59—Briarwood Commercial Lots(Gas Station) Thanks, Todd Todd Shifflett Community Development Engineering Division (434)296-5832 ext. 3072 tshifflett @albemarle.org 1 Now ,0000, John Anderson IN _ I /_1 _\. H / I /I111I From: Graham Murray[graham @collins-engineering.com] Sent: Wednesday, August 06, 2014 3:52 PM To: John Anderson Subject: Briarwood SWPPP Exhibit Attachments: 140806 SWPPP Exhibit.pdf Good afternoon John, I want to follow up on your comment regarding the SWPPP. I've attached a revised exhibit that I believe addresses the comments listed below,but was hoping you could take a look at this to see if you are in agreement.The other remaining items are specific to the report itself or WPO plan sheets(i.e.the construction entrance detail). Also, I'd like to confirm that at this time there is only one individual responsible for the reporting, recordkeeping and notification as questioned in your comment letter.The corrective actions will be the responsibility of Scott at this time. Thanks, Graham -EXHIBIT TO SHOW CONCRETE WASH OUT,PORTA-JOHNS,AND FUELING AREA(7/21/14): Show concrete wash out area(not shown). Concrete wash out area/s may not drain to storm inlets.Propose treatment for concrete wash waters. [§ 17-404.B.] -Show on-site dumpster.Provide treatment(or detention)of dumpster drain water.Dumpster runoff may contain contaminants that may not discharge freely downslope,to a storm inlet,or to any stream.Provide silt fence or earthen berm at ports johns as containment in event of spill.Furnish impermeable containment,a barrier to infiltration designed to hold the entire volume of stored fuel in event of spill,with freeboard measure of safety,for each fueling tank shown in the SWPP exhibit. - 17-404.B.1.a.Wash waters—"Minimize the discharge of pollutants from equipment and vehicle washing,wheel wash water,and other wash waters.Wash waters must be treated in a sediment basin or alternative control that provides equivalent or better treatment prior to discharge."Propose treatment for wash water. -Construction entrance with wash rack to the north does not drain to a sediment basin;propose treatment. Graham Murray,P.E. COLLINS ENGINEERING www.collins-engineering.com 200 Garrett Street, Suite K Charlottesville, VA 22902 Cell: (434) 566-3011 graha mecollins-engineerina.com 1 John Anderson From: Graham Murray[graham @collins-engineering.com] Sent: Monday, August 04, 2014 2:48 PM To: John Anderson Subject: FW: Briarwood Underground Detention- Filterra CRM:0110108 John, Please see this afternoon's e-mail below for the estimated construction costs for the Filterra inlets located at the Briarwood Underground Detention System development. Thanks, Graham From: Vance Fuller [mailto:vfuller @ filterra.com] Sent: Monday, August 04, 2014 2:43 PM To: Graham Murray Subject: RE: Briarwood Underground Detention - Filterra CRM:0110108 Graham, Filterra pricing for Briarwood project: F-28: 6'x4' $9600.00 F-30: 6'x4' $9600.00 F-36:8'x4' $10,300.00 F-38: 8'x4' $10,300.00 As mentioned in previous email if you use 30%of the price of the Filterra that is a good budget number for installation of each unit. Regards, Vance Fuller Territory Manager Filterra®Bioretention Systems A Division of Americast, Inc. 11352 Virginia Precast Road Ashland, VA 23005 (804)971-0400 (Mobile) Toll Free: (866)349 3458 Fax: (804) 798 8400 Email: vfuller @filterra.com Web: www.filterra.com. IMPORTANT NOTICE:This message(including any attachments)may be privileged and/or confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this e-mail in error please notify the sender by return e-mail and delete this message from your system. Any unauthorized use or dissemination of this message or the attachments in whole or in part is strictly prohibited.Any views expressed in this e-mail are those of the individual sender,except where the sender specifies and with authority,states them to be the views of Americast. 1 From: Drew Quinn Sent:Thursday, July 31, 2014 3:07 PM To: Vance Fuller Subject: FW: Briarwood Underground Detention - Filterra CRM:0110108 Vance, Please provide a cost estimate for Graham. The units are listed below in my review response. Thank you, Drew Quinn Engineering Support Technician Filterra®Bioretention Systems A Division of Americast, Inc. 11352 Virginia Precast Road Ashland, VA 23005 Phone:(804) 752-1415 Fax:(804) 798-8400 Email: dquinnna,flterra.com Web:www.filterra.com From: Graham Murray [mailto:graham(acollins-engineering.com] Sent: Thursday, July 31, 2014 1:33 PM To: Drew Quinn Subject: RE: Briarwood Underground Detention - Filterra CRM:0110108 Good afternoon Drew, The County has requested a cost estimate for the installation and materials for the Filterra inlets proposed with the Briarwood Underground Detention system plans,attached and shown on sheet 5. Is this something you can provide me with?The County will use your estimate to establish the construction bond and it doesn't have to be exact at this point. Thanks, Graham From: Drew Quinn [mailto:DQuinn filterra.com] Sent: Monday, June 09, 2014 10:12 AM To: Graham Murray Subject: Briarwood Underground Detention - Filterra CRM:0110108 Graham, Thank you for specifying Filterra®Stormwater BMPs on the Briarwood Underground Detention project located in Charlottesville,VA. As you are aware, part of Americast's operating procedure is to review all plans of our system to ensure best use and placement for your project. We find the placement and size appropriate for the following specified Filterra® units as per plans dated/revised 06-09- 14: F-28:6'x4' 2 Nifty, Nftioi F-30: 6'x4' F-36: 8'x4' F-38:8'x4' Thanks again for specifying Filterra®for your project's stormwater needs, please feel free to contact me if you should require any additional information or assistance. I have attached a review letter for you to submit with your plans. Regards, Drew Quinn Engineering Support Technician Filterra®Bioretention Systems A Division of Americast, Inc. 11352 Virginia Precast Road Ashland, VA 23005 Phone:(804) 752-1415 Fax:(804) 798-8400 Email:dquinn(&,,filterra.com Web:www.filterra.com 3 John Anderson From: Graham Murray[graham @collins-engineering.com] Sent: Friday, August 01, 2014 11:02 AM To: John Anderson Subject: FW: Briarwood Underground Detention Systems-Cost Estimates Good morning John, Please see below for the two Contech underground detention system cost estimates.Also,the three SWM sheets I e-mailed you yesterday evening are being dropped off to your attention as we speak. Thanks, Graham From: Lowell, Aaron M [mailto:ALowell@ conteches.com] Sent: Friday, August 01, 2014 10:56 AM To: Graham Murray Cc: Vanderwarker, Brad Subject: RE: Briarwood Underground Detention Systems- Cost Estimates Graham, I have put together cost estimates for the two detention systems. Please see below.The estimate is for the material cost and includes delivery to the job site.The estimates do not include installation. Please ballpark 75-100%of the material cost for installation. Briarwood—542 If of 66" CMP, 16 gage Estimated Cost:$42,275 Briarwood Gas Station—81 If of 120"CMP, 12 gage Estimated Cost:$19,270 Let me know if you need anything else. Thanks, Aaron M. Lowell Stormwater Design Engineer Virginia,West Virginia, DC Contech Engineered Solutions LLC 605 Global Way,Suite 113 Linthicum, MD 21090 Off:443-457-1509 Fax:410-740-8492 alowell@)conteches.com www.ContechES.com From: Graham Murray [mailto:graham©acollins-engineering.com] Sent: Thursday, July 31, 2014 1:50 PM To: Lowell, Aaron M; Vanderwarker, Brad Subject: RE: Briarwood Underground Detention Systems- Cost Estimates Second Cost Estimate 1 From: Graham Murray Sent: Thursday, July 31, 2014 1:23 PM To: 'Lowell, Aaron M'; 'Vanderwarker, Brad' Subject: RE: Briarwood Underground Detention Systems- Cost Estimates First cost estimate From: Graham Murray Sent: Thursday,July 31, 2014 1:22 PM To: 'Lowell, Aaron M'; Vanderwarker, Brad Subject: Briarwood Underground Detention Systems- Cost Estimates Good afternoon Aaron and Brad, The County has requested two cost estimates for the installation and materials for the two proposed underground detention systems at Briarwood. Is this something you can provide me with,two separate costs?The County will use your estimates to establish the construction bonds and it doesn't have to be exact at this point. Due to file sizes, I will send two follow up e-mails with the PDF attachments for the two projects. If you do not receive these two follow up e-mails please let me know. Thanks, Graham Graham Murray,P.E. COLLINS ENGINEERING www.collins-engineering.com 200 Garrett Street, Suite K Charlottesville,VA 22902 Cell: (434) 566-3011 graham acollins-engineerina.com The information contained in this message may be confidential and/or proprietary,and legally protected from disclosure.If the reader of this message is not the intended recipient,or an employee or agent responsible for delivering this message to the intended recipient.you are hereby notified that any retention, dissemination,distribution or copying of this communication is strictly prohibited.If you have received this communication in error,please notify us immediately by replying to the message and permanently deleting it from your computer.Thank you,Contech Engineered Solutions 2 Noi John Anderson From: Graham Murray[graham @collins-engineering.com] Sent: Thursday, July 31, 2014 4:52 PM To: John Anderson Subject: Briarwood Underground Detention system WPO Attachments: 140731 UGD WPO Plan- REVISED sheet 3.pdf Good afternoon John, I have revised sheet 3 of the Briarwood Underground Detention system WPO plans per our conversation this afternoon. I understand this is not a formal submission, however if further revisions are required to address your concerns please let me know. Should you feel inclined to reference this document in your review letter being distributed next week that's fine too. Thanks, Graham Graham Murray,P.E. COLLINS ENGINEERING www.collins-engineering.com 200 Garrett Street, Suite K Charlottesville,VA 22902 Cell: (434) 566-3011 graham ncollins-engineerinq.com 1 John Anderson From: Graham Murray[graham @collins-engineering.com] Sent: Thursday, July 31, 2014 9:41 AM To: John Anderson Subject: RE: Briarwood Underground Detention System Plans Attachments: Briarwood Underground Detention No. 1-Final Buildout.txt; Briarwood Underground Detention No. 1-Post Development.txt; Briarwood-Contech System 2-Revised.txt John, You had mentioned on the phone this morning you had to check my routing calculations for Briarwood. I'm not sure if this will save you some time or not,but I've attached the text files for your convenience. Please note I did not attach the routing calculations for the extended detention facility associated with the Road Plan WPO because these calculations were not required to be modified with the recent submittal. Thanks, Graham From: Graham Murray Sent:Thursday, July 31, 2014 9:11 AM To: 'John Anderson' Subject: RE: Briarwood Underground Detention System Plans I'm free from 3 to 3:30 today. Thanks,Graham From: John Anderson [mailto:janderson2Ca�albemarle.orq] Sent: Thursday, July 31, 2014 9:01 AM To: Graham Murray Subject: RE: Briarwood Underground Detention System Plans Graham, Are you free at 3-3:30? I have the Channel Adequacy report,thank you. Thanks for this information. From: Graham Murray [mailto:grahamCacollins-engineering.com] Sent:Thursday,July 31, 2014 8:59 AM To: John Anderson Subject: Briarwood Underground Detention System Plans Good morning John, Thank you for your assistance with the review&approval of the Briarwood plans. I've attached the most recent County Engineering comments for the underground detention system plans,along with our comment response letter. If you need the channel adequacy report and exhibit that accompany this set of plans and the adjacent Briarwood developments please let me know and I can provide you with this as well. Thanks and if you have any questions feel free to contact me. Graham Graham Murray,P.E. COLLINS ENGINEERING www.collins-engineering.com 200 Garrett Street, Suite K Charlottesville,VA 22902 1 John Anderson From: Graham Murray[graham @collins-engineering.com] Sent: Thursday, July 31, 2014 8:59 AM To: John Anderson Subject: Briarwood Underground Detention System Plans Attachments: WPO201400030—UG storage-Briarwood -071614rev-1.pdf; 140717 WPO Comment Response Letter.docx Good morning John, Thank you for your assistance with the review&approval of the Briarwood plans. I've attached the most recent County Engineering comments for the underground detention system plans,along with our comment response letter. If you need the channel adequacy report and exhibit that accompany this set of plans and the adjacent Briarwood developments please let me know and I can provide you with this as well. Thanks and if you have any questions feel free to contact me. Graham Graham Murray,P.E. COLLINS ENGINEERING www.collins-engineOng.com 200 Garrett Street, Suite K Charlottesville, VA 22902 Cell: (434) 566-3011 graham( collins-enoineerinq.com 1 Nippy Niviv John Anderson From: Scott Collins [scott @collins-engineering.com] Sent: Thursday, July 24, 2014 11:57 AM To: Glenn Brooks; Adam Long; Nena Harrell Cc: John Anderson; Max Greene Subject: RE: WP0201300030, Briarwood, underground detention Glenn- Thanks for the email. The SWPP and pollution prevention plan was submitted yesterday. The SWPP incorporates all (3) of these projects, since they all fall under the same registration number. Thank you. Scott Collins From:Glenn Brooks [mailto:GBROOKS @albemarle.org] Sent:Thursday,July 24, 2014 11:07 AM To:Adam Long; Nena Harrell; Scott Collins Cc:John Anderson; Max Greene Subject:WP0201300030, Briarwood, underground detention We have received your VSMP application for Briarwood Commercial Lots,WP0201300030. This application does not appear complete. A copy of the SWPPP and Pollution Prevention Plan was not found. Your registration statement indicates you have an existing general permit and number with DEQ. In this case,you would need to submit directly to DEQ for a continuation of that permit(VA10-12-101227). This appears to be the same permit number you used for WP0201400059 and 72. It is not clear how the SWPPP document will incorporate multiple E&S and SWM plans,or if the proper fees have been paid for each application. Your application has been checked for completeness per section 17-409 of the County Code. All items must be received and correct for the application to be deemed complete. Glenn Brooks,P.E. County Engineer Albemarle County • ate: COLLINS =' NNW' 200 GAR_ST,SUITE K CHARLOTTESVILLE VA 22902 434.293.3719 PH 434.293.2813 FX www.collins-engineering.com July 17th,2014 John Anderson, P.E. Community Development County of Albemarle 401 McIntire Road, Room 227 Charlottesville,VA 22902 RE:Briarwood Commercial Road Plan WPO(WPO 201400030) Thank you for your comments on the project referenced above. Please let this letter supplement the revised plans in response to your stormwater management comments dated July 16th, 2014. Please also note this plan has not been submitted for erosion and sediment control review,as this area will be covered under a separate ESC plan (WPO 201300072). L: ,. - A. Stormwater Management Plan.' 1. 'Comment addressed,'as indicated in review letter. 2. 'Comment addressed,'as indicated in review letter. 1\3.. 'Comment addressed,'as indicated in review letter. 4. The revised Road Plans now show proposed su• antial riprap at the outfall points of the I 'ng 24"CMP r <-7 - an,, the 18"concrete pipe beneath ro '= The proposed riprap channels are shown to � tom':pezoidal �) ��- tches 6'wide(2'at the bottom)an 'de-• (See road plan SUB 201400066 sheet 10 for •-.ign deta'js).---- e channel adequacy calculations provl.ed with this plan have been updated to reflect this to ensure an ,a curate account of the maximum permissible velocity for these reaches,and channel cross sections have 11\ •een provided as well.The riprap channel beneath the existing 18"concrete pipe is proposed to extend to the limits of the eastern route 29 VDOT right-of-way,as noted on sheet 10 of the road plans. The limits of , the riprap from the outlet of the existing 24"CMP are now proposed to extend to the stream banks. It was determined in a July 16th phone conversation and a subsequent e-mail that day,that these revisions would resolve this comment and comment#5 below. 5. Please see comment#4 response above. 6. 'Comment addressed,'as indicated in review letter. 7. 'Comment addressed,'as indicated in review letter. Note,future impervious area credit is now 29,500sf. 8. 'Comment addressed,'as indicated in review letter. Note,this assumes minimum standards are based off pre July 1st requirements. DEQ is currently backlogged with projects and once this information is obtained it will be furnished to County Engineering. 9. 'Comment addressed,'as indicated in review letter. 10. 'Comment addressed,'as indicated in review letter. 11. 'Comment addressed,'as indicated in review letter. 12. 'Comment withdrawn,'as indicated in review letter. 13. 'Comment addressed,'as indicated in review letter. 14. 'Comment addressed,'as indicated in review letter. Nye Noe 15. Please let this letter serve as formal confirmation for County files that Contech has approved the proposed underground detention system.Also, in accordance with prior conversations between Mr. Murray of Collins Engineering and Mr.Anderson of Albemarle County,the debris cage detail shown is as clear as it can be.The official 1999 VSMH technical bulletin#7 shows this detail and it's a blurry scan. In efforts to provide a clearer image the applicant went to the manufacturer's website directly to obtain a clearer scan of this debris cage. Because the applicant has obtained this detail directly from the manufacturer,and it's clearer than the VSMH detail,the applicant requests this be enough to resolve this comment since little more can be done. Please note in efforts to resolve this comment further the applicant has also added a note to sheet 4 beneath this detail linking it to the official 1999 VSMH technical bulletin#7. 16. 'Comment addressed,'as indicated in review letter. If you have any questions regarding the proposed SWM plans please do not hesitate to contact me. Sincerely, Scott Collins, PE John Anderson From: John Anderson Sent: Wednesday, July 09, 2014 10:59 AM To: Andrew Kellerman; 'Scott Collins'; Glenn Brooks Cc: Amelia McCulley; 'Nena Harrell'; Christopher Perez; David Benish Subject: RE: Briarwood From: John Anderson Sent: Wednesday, July 09, 2014 10:03 AM To: Andrew Kellerman; Scott Collins; Glenn Brooks Cc: Amelia McCulley; Nena Harrell; Christopher Perez; David Benish Subject: RE: Briarwood All- I was out of office in mid-June (Jun-11-Jun-23). I am reviewing SDP201300035 this morning,an amended site plan (mitigation plan) received Jun-23. Plan was resubmitted yestef ay,7-7, prior to design engineer receiving Engineering Div comment on Jun-23 plan submittal. A WPO for Briarwood underground detention was approved 8-20-13 (WPO201300018), but ACCD received request to amend approved WPO201300018 on 22-Nov-13; request was denied, 19-Dec-13. Elements of SWM facilities now proposed reflect changes in proposed development(commercial lot, road design revision). We received request to approve change to WPO201300018 (now WPO201400030)Apr-11, 2014; I furnished comment 22-May. Revised plans received 16-Jun. It is 9-Jul. I have had tel/e-mail exchange with applicant on WPO for road, UG storage, commercial lot. This note does not cover all details of all Briarwood applications, but all aspects of Briarwood are front and center this week. Please feel free to call if you have any questions. Thank you- John E.Anderson, 'E I Civil Engineer H Department of Community Development 1 County of Albemarle,Virginia 401 McIntire Road l Charlottesville,VA 22902 434.296.5832 ext.3069 From: Andrew Kellerman Sent: Wednesday, July 09, 2014 9:35 AM To: Scott Collins Cc: Amelia McCulley; John Anderson; Nena Harrell Subject: RE: Briarwood Scott, From what I am seeing in the system, there are currently two(2)separate WPO applications under review. WPO2014-059—Briarwood Commercial Lots/Gas Station—Listed as Pending since 6/13/14 WPO2014-030—Briarwood Underground Detention(the application that I am most interested in)—John Anderson requested changes to the plan on 5/22/14. Please coordinate with John Anderson so that we can move this along and toward abatement of these violations. y.., ..r' Andrew Kellerman Code Enforcement Officer II County of Albemarle (434) 296-5832 ext. 3415 From: Scott Collins [mailto:scottCa collins-engineering.com] Sent:Tuesday, July 08, 2014 11:38 AM To: Andrew Kellerman Subject: Briarwood Andy- Thanks again for meeting with us last week. As discussed, we resubmitted the mitigation plan to Chris Perez yesterday, and I believe all the comments have been addressed. He is hoping to put this on the BOS consent agenda next month. Also, any help that you and Amelia can provide to help free up our WPO plan for this area,so we can start grading this area at the end of the month would really be helpful. Thx. Scott 2 COLLI NS 5 NNW' 204101ARRETT ST, SUITE K CHARLOTTESVILLE VA 22902 434.293.3719 PH 434.293.2813 FX www.collins-engineering.corn John Anderson, P.E. Community Development County of Albemarle 401 McIntire Road, Room 227 Charlottesville,VA 22902 RE: Briarwood Underground Detention SWM Amendment(WPO 201400030) Thank you for your comments on the project referenced above. Please let this letter supplement the revised plans in response to your comments dated May 22nd, 2014. A. Stormwater Management Plan 1. The routing calculations have been revised to eliminate what was previously shown as structure 3,the access manhole. It should be noted this structure was hydraulically irrelevant so it did not have an impact on the resulting calculations. Additionally, previous outlet structure 1,which simulates the emergency spillway,was revised to no longer be analyzed as a weir and is now simulated via an orifice per the recommendation of County Engineering. Please also note that all stormwater management(SWM) calculations have been updated throughout the plans and take into account revisions associated with other comments. And lastly, the length of pipe shown in the calculations was not revised from 181'to 175' due to the additional 6' of 66" pipe at the outfall junction.This additional 6' can be viewed best on sheet 4. Per a meeting held on May 29th, 2014 between Mr. Murray of Collins Engineering and Mr.Anderson of Albemarle County Engineering this was deemed acceptable. 2. The plans have been updated to correctly label the existing critical slopes as 'managed' critical slopes.The applicant has confirmed with County GIS that these slopes are managed. 3. The stormwater management plans have been updated at the request of the reviewer such that the watersheds are consistent with the drainage divides previously shown on the drainage analysis page of the road plan. All stormwater management calculations have been updated accordingly and are now consistent. Also,the approved grading associated with the adjacent development currently under construction can be shown in the pre-development scenario, if desired. This was concluded in the aforementioned May 29th meeting. 4. A revised MS-19 report and channel adequacy exhibit have been provided separately for Engineering approval.The revised plan takes into account all current design elements and extends the analysis further downstream, hereby addressing this comment. 5. The applicant would like to confirm the revised report, channel cross sections and photographs correctly correspond to the analysis points. 6. The plans have been corrected to address this comment. Drainage area#1C now has a higher CN value in the post-development state and the calculations are consistently shown throughout. Nese N.00, 7. The plans and calculations have been revised and the facility can now handle a future impervious area of 30,000sf.The plans have been updated accordingly. 8. The plans have been revised to provide water quality treatment for the proposed access road via four Filterra inlets. Please see this plan,the road plan and the SWM narrative on sheet 3 for additional information.This was deemed acceptable during the May 29th meeting with County Engineering. 9. Elm Tree Court is approved under a different set of plans and receives treatment via the approved facility to the north, which is not proposed or modified with this plan.Approved storm sewer, curb and grading direct this runoff away from the proposed development.This was confirmed with County Engineering during the May 29th meeting and is this comment is therefore no longer applicable. 10. The plans have been revised to show the approximate location of the existing pipes beneath route 29 extended to the west side of route 29. 11. The plans have been revised to no longer show the underground detention system in the pre- development state. 12. The inverts shown on the plan are correct and are not off by 0.36".The underground detention system consists of two pipes at the ends of the three elongated pipes.These two short pipes run perpendicular to the elongated three pipes and the spot shots were therefore placed at the respective centered inverts. During a phone conversation between Mr. Murray and Mr. Anderson on June 2nd this was confirmed to be adequately shown. Please also note during prior meetings with County Engineering it was determined the two short pipes could be lumped in with the three elongated pipes in the hydraulic analysis of the system to avoid complications, provided the overall linear footage of the pipes were accurately displayed. This was previously displayed correctly, and remains displayed correctly. No revisions were actually made to the underground detention system itself, only the contributing watersheds. 13. During the May 29th meeting with County Engineering Mr. Murray was advised by Mr. Anderson that this comment could be simply addressed by showing the existing riser and barrel being removed. 14. The 'bypass/overflow pipe' shown on sheet 4 is proposed to bypass large storm events at the inlet to prevent water from spilling over onto Briarwood Drive. Smaller storms will be directed to the underground detention system,where water will backup behind the 1'tall weir plates and will slowly be released into the remaining portion of the system via the three 3" orifices. It is during this backup the initial 1xWQV is detained. The runoff exiting the three 3" orifices, and runoff that overtops the 1'weir in larger storm events, will be discharged downstream within the system through the weir plate. At this point the runoff will be directed to the water quality swale. It is only during significant rainfalls that the 'bypass/overflow pipe' is activated. During the phone conversation described above on June 2"d with Mr.Anderson this was explained and was determined to be acceptable, hereby addressing this comment. 15. The underground detention system was submitted to Contech with the prior submittal and Collins Engineering received approval from Contech. Because the revisions associated with this resubmittal have not been related to the Contech underground detention system itself,their prior approval is still valid. The applicant has attached this approval with the revised plans, hereby addressing this portion of the comment.Additionally, during the June 2nd phone conversation it was determined the two details that were not legible were the 'reinforcing table' and the VSMH 'debris cage'. The plans have been revised to more clearly show these details. 16. At the request of the reviewer,the plans have been revised to address this comment and now show the diameter and length of the proposed and existing culverts beneath Briarwood Drive at its intersection with Route 29. Please see sheet 3 for evidence of this. B. Erosion Control Plan The erosion and sediment control for the proposed SWM amendment will be covered and reviewed under the WPO plans for the road.This is in accordance with an e-mail between Mr.Anderson and Mr. Murray on June 2"d, 2014. If you have any questions regarding the proposed plans please do not hesitate to contact me. Sincerely, Graham Murray, PE