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Home My WebLink About20211123 Ver 1_Revised_Wetland-Impacts 9 3 2021_20210903Strickland, Bev From: Don Sever, PE <don.sever@summitde.net> Sent: Friday, September 3, 2021 1:46 PM To: Cohn, Colleen M Cc: Norton, April R CIV USARMY CESAW (USA) Subject: [External] RE: Highland View Subdivision Attachments: Highland View Revised_Wetland-Impacts 9 3 2021.pdf CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Report Spam. Colleen, Thanks for the email. I needed to check on a couple of things before I got back to you. We have concurrently addressing your review comments and April's comments. Regarding your comment, Exhibit 3 is showing the existing roadway culvert being replaced. The roadway was built prior to any buffer rules being in effect. The existing pipe angle skew is 50 degrees. To make the culvert crossing more perpendicular, we would have to relocate the stream. We didn't think that was a very good solution so we decided to keep the pipe at its present angle. Reviewing your comment, we are showing the wetland impacts but failed to realize that the buffer still exists even with this impact. The attached exhibit shows the revision. You mentioned about the crossing of streams being allowable with mitigation. Is mitigation required in this instance? On exhibit 5, since the roadway existed prior to the buffer rules, the zone 2 buffer stops where the maintenance ends for the existing roadway. We have determined that to be approximately 30' from the centerline at this location. Does this address your questions? Thanks Don Don Sever, PE Senior Project Manager Tel: 919-322-0115 x3239 Fax: 919-732-6676 DESIGN AND ENGINEERING SERVICES EEO Title v"r From: Cohn, Colleen M <colleen.cohn@ncdenr.gov> Sent: Wednesday, September 01, 2021 4:35 PM 1 To: Don Sever, PE <don.sever@summitde.net> Cc: Norton, April R CIV USARMY CESAW (USA) <April.R.Norton@usace.army.mil> Subject: Highland View Subdivision Mr. Sever, I am reviewing the application for the above reference project, and in order to complete the review process, some additional information is required: 1. Please provide the Division a copy of your response to the August 30, 2021 email from the U.S. Army Corps of Engineers requesting additional information. [15A NCAC 02H .0502(c)] 2. The road crossing in Exhibit 3 does not appear to be a perpendicular crossing (between 75 and 105 degrees), and it is unclear from the plans if there are any buffer impacts at this crossing. Road impacts other than perpendicular crossings of streams are allowable with mitigation upon authorization. Please provide more detail about the angle of this crossing and buffer impacts. [15A NCAC 02B .0714(11)] 3. I am having difficulty seeing where Zone 2 of the riparian buffer is located in relation to the proposed impervious roadway in Exhibit 5. Please provide an updated plan with the edges of Zone 2 and the proposed roadway clearly defined. [15A NCAC 02B .0611(b)(1)(F)] Thank you, Colleen Cohn Environmental Specialist II North Carolina Department of Environmental Quality Division of Water Resources Raleigh Regional Office 380o Barrett Drive Raleigh, NC 27609 Office: 919-791-4258 E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties. 2 i l LEGEND: PERMANENT STREAM IMPACT TEMPORARY STREAM IMPACT PERMANENT WETLAND IMPACT TEMPORARY WETLAND IMPACT MITIGATED WETLAND AREA PERMANENT ZONE 1 IMPACT TEMPORARY ZONE 1 IMPACT PERMANENT ZONE 2 IMPACT TEMPORARY ZONE 2 IMPACT STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - TOTAL PERMANENT SF AC STREAM (LF) S-1 56 0.001 RIPARIAN BUFFERZONE1 4519 0.104 RIPARIAN BUFFERZONE2 2189 0.050 WETLAND 19632 0.451 MITIGATED WETLAND 28874 0.663 N ET WETLAND I MPACT 0 0 STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - TOTAL TEMPORARY SF AC STREAM (LF) 20 - RIPARIAN BUFFERZONE1 2150 0.049 RIPARIAN BUFFER ZONE 2 2248 0.052 WETLAND 25802 0.592 EXHIBIT 1 150 GRAPHIC SCALE 0 75 150 300 600 (IN FEET) 1 inch = 300 ft. REVISIONS PROJECT NO. 19-0063 DRAWING NAME: 19-0063_IMPACTS SHEET NO. EXH-OVERALL / z If/I11i/� l�j 11.11144* l \ 2y 20 SF I I a RAL7IIAq // d WEIIT AIIJD-fMPAC f �II / I P RM�tTIVIE ILI I IMPAC/77II/ �I II �(III III I \ II or/ -- (I I (( // _) PERT E I Or I/PNAFOREAT 00EXISTI G PAVrEMENT AL AT INE '0 \fr � lz\v a END SIDEWALK AT PROPERTY LINE IVIYORARY ,713 ETL D IMPACT �1 1 06N*tRUCTEI�'WE LANd" MI (GATED AREA 1,290 SF \ TEMPORAIRY WETLAND IMPACT 2,986 SIB L \ \V\ \\kl\krfr \fr Lk \fr1 H \fr\ S STORMWATER EASEMENT SCM (STORMWATER POND) STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT 1 PERMANENT SF AC STREAM (LF) RIPARIAN BUFFER ZONE 1 RIPARIAN BUFFER ZONE 2 WETLAND 12767 0.293 MITIGATED WETLAND 11290 0.259 STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT 9 TEMPORARY SF AC STREAM (LF) - RIPARIAN BUFFER ZONE 1 RIPARIAN BUFFERZONE2 WETLAND 6072 0.139 NOTE: CONTRACTOR IS TO STRIP THE TOP FOOT OF THE CONSTRUCTED WETLAND AREA AND STOCKPILE IT. THE POND SHALL BE GRADED ONE FOOT LOWER, THEN THE CONTRACTOR IS TO BE PLACE THE STRIPPED MATERIAL TO CREATE THE FINAL GRADES. THE USE OF THE EXISTING MEDIA SHOULD ALLOW FOR THE REESTABLISHMENT OF THE WETLAND AREA TO ITS ORIGINAL CONDITION QUICKLY. LEGEND: PERMANENT STREAM IMPACT TEMPORARY STREAM IMPACT PERMANENT WETLAND IMPACT TEMPORARY WETLAND IMPACT MITIGATED WETLAND AREA PERMANENT ZONE 1 IMPACT TEMPORARY ZONE 1 IMPACT PERMANENT ZONE 2 IMPACT TEMPORARY ZONE 2 IMPACT GRAPHIC SCALE 25 0 12.5 25 50 100 ( IN FEET ) 1 inch = 50 ft. DRAWING NAME. 19-0063_IMPACTS SHEET NO. J 2 MITGATED WETLAND AREA = 2,028 SF isv Th..771\ Xcis 13,788 SF TEMPORARY WETLAND IMPACT 3,729 SF PERMEN ETLAND IMPACT 1,793 SF J J STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT 2 PERMANENT SF AC STREAM (LF) RIPARIAN BUFFER ZONE 1 RIPARIAN BUFFERZONE2 WETLAND 6637 0.152 MITIGATED WETLAND 2028 0.047 STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT 2 TEMPORARY SF AC STREAM (LF) - RIPARIAN BUFFER ZONE 1 RIPARIAN BUFFER ZONE 2 WETLAND 18815 0.432 NOTE: CONTRACTOR IS TO STRIP THE TOP FOOT OF THE CONSTRUCTED WETLAND AREA AND STOCKPILE IT. THE POND SHALL BE GRADED ONE FOOT LOWER, THEN THE CONTRACTOR IS TO BE PLACE THE STRIPPED MATERIAL TO CREATE THE FINAL GRADES. THE USE OF THE EXISTING MEDIA SHOULD ALLOW FOR THE REESTABLISHMENT OF THE WETLAND AREA TO ITS ORIGINAL CONDITION QUICKLY. GRAPHIC SCALE 25 0 12.5 25 50 100 ( IN FEET ) 1 inch = 50 ft. LEGEND: PERMANENT STREAM IMPACT TEMPORARY STREAM IMPACT PERMANENT WETLAND IMPACT TEMPORARY WETLAND IMPACT MITIGATED WETLAND AREA PERMANENT ZONE 1 IMPACT TEMPORARY ZONE 1 IMPACT PERMANENT ZONE 2 IMPACT TEMPORARY ZONE 2 IMPACT DRAWING NAME. 19-0063_IMPACTS SHEET NO J.; \ 8. 9 0\4- N\A �1- ti 6 172 SF 0140 AC /‘/Sgg,4 16aF TEMPORARY \- WETLAND IMPACT 188 SF \TEMPORARY ZONE 2 1975 SF 10' BUILDING / SETBAfoK -, \AI a •-z„\^ DJj �r TF POIC(RY STREAM IMPACT MPORARY 1536 SF TEMPO Y D IMPAC1 STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT 3 PERMANENT SF AC STREAM (LF) S-1 56 0.001 RIPARIAN BUFFER ZONE 1 4279 RIPARIAN BUFFER ZONE 2 2067 WETLAND W-3 228 0.005 MITIGATED WETLAND STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT 3 TEMPORARY SF AC STREAM (LF) S-1 20 - RIPARIAN BUFFER ZONE 1 1536 RIPARIAN BUFFER ZONE 2 1975 WETLAND W-3 915 0.021 LEGEND: PERMANENT STREAM IMPACT TEMPORARY STREAM IMPACT PERMANENT WETLAND IMPACT TEMPORARY WETLAND IMPACT MITIGATED WETLAND AREA PERMANENT ZONE 1 IMPACT TEMPORARY ZONE 1 IMPACT PERMANENT ZONE 2 IMPACT TEMPORARY ZONE 2 IMPACT GRAPHIC SCALE 25 0 12.5 25 50 100 ( IN FEET ) 1 inch = 50 ft. J m REVISIONS STREAM AND WETLAND IMPACTS - EXHIBIT 3 PROJECT NO. 19-0063 DRAWING NAME: 19-0063_IMPACTS SHEET NO. EXH-3 /01 itic5/(7)f\cY1 /, 44scF�I Y �t / /r)i_P/ /,12/7,0 /7)f(01T/11- /// l �f 1 J / CO STRUCITUNETL bl (M") ,L) irf‘l 6° 36' 1"E f / 383.E / 15672— 0.36 AC c //// /I YDRIC�501LS� STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS- EXHIBIT4 PERMANENT SF AC STREAM (LF) RIPARIAN BUFFER ZONE 1 RIPARIAN BUFFER ZONE 2 WETLAND MITIGATED WETLAND 15556 0.357 STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT TEMPORARY SF AC STREAM (LF) RIPARIAN BUFFER ZONE 1 RIPARIAN BUFFER ZONE 2 WETLAND LEGEND: PERMANENT STREAM IMPACT TEMPORARY STREAM IMPACT PERMANENT WETLAND IMPACT TEMPORARY WETLAND IMPACT MITIGATED WETLAND AREA PERMANENT ZONE 1 IMPACT TEMPORARY ZONE 1 IMPACT PERMANENT ZONE 2 IMPACT TEMPORARY ZONE 2 IMPACT GRAPHIC SCALE 40 0 20 40 80 160 ( IN FEET ) 1 inch = 80 ft. DRAWING NAME: 19-0063_IMPACTS SHEET NO. /z , Afae , 525�' ViVhemiiaWISMS Alt-Firr '100-0:--- ir-Oriv, iv-/IIII.P- ci* _-_,- ___.6-- --......q4----•ems Miiirmaglio...--orwmania — PERMANENT ZONE 2 jMPACT 122 SF TEMPORARY ZONE 2 IMPACT 130 SF TEMPORARY - 31.4 ZONE 2 IMPACT ►i f • SF Aline 5p� 12 g1 � \\ TEMPORARY ZONE 1 IMPAC-, -- \Z MA C 316 SF �\ TEMPORARYG , Z9.NE 1JMRAef— 29$ SE 61 23820 SF / Nw\ STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT 5 PERMAN ENT SF AC STREAM (LF) RIPARIAN BUFFERZONE1 240 0.006 RIPARIAN BUFFERZONE2 122 0.003 WETLAND MITIGATED WETLAND STREAM, RIPARIAN BUFFER, AND WETLAND IMPACTS - EXHIBIT 5 TEMPORARY SF AC STREAM (LF) RIPARIAN BUFFER ZONE 1 614 RIPARIAN BUFFER ZONE 2 273 WETLAND LEGEND: PERMANENT STREAM IMPACT TEMPORARY STREAM IMPACT PERMANENT WETLAND IMPACT TEMPORARY WETLAND IMPACT MITIGATED WETLAND AREA PERMANENT ZONE 1 IMPACT TEMPORARY ZONE 1 IMPACT PERMANENT ZONE 2 IMPACT TEMPORARY ZONE 2 IMPACT GRAPHIC SCALE 25 0 12.5 25 50 — _ ( IN FEET ) 1 inch = 50 ft. 100 J REVISIONS STREAM AND WETLAND IMPACTS - EXHIBIT 5 PROJECT NO. 19-0063 DRAWING NAME: 19-0063_IMPACTS SHEET NO. EXH-5