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HomeMy WebLinkAbout20200930 Ver 1_More Info Received_20200902Strickland, Bev From: Daniel Kuefler <daniel.kuefler@wetlands-epg.com> Sent: Wednesday, September 2, 2020 12:50 PM To: Johnson, Alan Cc: Len Rindner Subject: [External] Re: The foundry... Stanly county Attachments: Oakboro Blue Sky _PCN responses for DWR 090220.pdf • External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to Mff-rt-s—pam@nc.gov Alan, We heard back from the engineer today regarding your comments on this project (Oakboro - Blue Sky). To keep things organized, I've summarized and compiled the explanations / updates in the attached binder. Also note that they were able to slightly adjust the rail spur alignment to avoid any stream impacts onsite. The total permanent impacts on site is now limited to 0.079 ac of wetland impacts. Please let me know if you have any questions with the attached. Also, we've been told that they have equipment on site, engines running, etc., and are reaching some critical scheduling deadlines - if you are able to take a look and let us know relatively soon that would be greatly appreciated. Thanks very much, Daniel On Tue, Aug 25, 2020 at 9:32 AM Johnson, Alan <alanJohnson o,ncdenr.gov> wrote: I believe this is blue sky? Waiting on response. Checking in Thanks alan DWR WwWon of Water Resources Alan D Johnson — Senior Environmental Specialist NC Dept. of Environment & Natural Resources (NCDENR) Division of Water Resources - Water Quality Regional Operations 610 East Center Ave., Suite 301, Mooresville, NC 28115 Phone: (704) 235-2200 Fax: (704) 663-6040 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 unless the content is exempt by statute or other regulation. From: Johnson, Alan Sent: Monday, August 10, 2020 11:34 AM To: Daniel Kuefler <daniel.kuefler@wetlands-epg.com>; Len Rindner (len.rindner@wetlands-epg.com) <len. rindner@wetlands-ep g. com> Subject: The foundry... Stanly county What is up with this outfall. If it is overland runoff, then it should be allowed to run overland. Should a french drain be more appropriate to discharge into the weltnad? Is the 36 inche culvert going to be removed? 5 i- * PA *1 ' rim 41 F1 M .. +2 F7, ' - 12.4 N IPA= YAM AM ARF x RIP RAP APRON Tr, 6+ AC} s 'norm F1t151IWj ]¢f TOPOF� ? +• GMK rSYp r fLOVV DIRE ' D.N f A` _aE xr4 LF 1 k't UJO U, UIr HOW are they going to avoid impact more of the wetland if the fill is in the wetland. How are they going to ensure sediment does erode into the wetland if it is on the wetland.... immediate matting ... high hazard silt fence?? .XiST. 70P OF CAM MO) FLOW DlkM OVEWI ENT STREAM LF) } Mol AXW - + TEVPOWY WYE'TtAbO IMPACT 3 DWR Dlvislon of Water Resources Alan D Johnson — Senior Environmental Specialist NC Dept. of Environment & Natural Resources (NCDENR) Division of Water Resources - Water Quality Regional Operations 610 East Center Ave., Suite 301, Mooresville, NC 28115 Phone: (704) 235-2200 Fax: (704) 663-6040 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 unless the content is exempt by statute or other regulation. Daniel Kuefler Wetlands & Environmental Planning Group Leonard S. Rindner, PLLC www.wetlands-epg.com 336.554.2728 y ��� �. n: Fi/ xnt. Wn B Itn) Mf)lflYfNt SIRFNI� - Ift6�1 :N WFILA yf rrwruur wfturmW u�rect Reviewer Comment #1: What is up with this outfall? If it is overland runoff, then it should be allowed to run overland. Should a French drain be more appropriate to discharge into the wetland? Is the 36 inch culvert going to be removed? Response: The existing culvert is to remain and subsequently the riprap apron has been designed to decrease velocity from the bypass system, which handles a very large area of runoff, and therefore prevent erosion and reduce the likelihood of widening any existing, natural flow patterns, and additionally ensure proper drainage through the existing culvert. Also note that BMP 1 has been relocated so the outlet for that pond has moved downstream accordingly. The BMP relocation from the small sand filter at the north end of the stream to the southern end (larger Wet BMP) was designed for additional growth and additional lay down / storage yard. Also it is important to note that this was an approved location for a temporary sediment basin so the conversion into a permanent BMP will actually reduce the overall site disturbance area in the sense that this eliminates the need to build a temporary basin and fill it then dig out the permanent BMP in a new location to treat the same proposed runoff. M . w!a' 214-56j 1 MP q*saPP OR 4,,,-L F7 W-11 Fr Li7AC1Ei l VAR AM A"& . SAI Ktt IM.s.1PON ilt IF Reviewer Comment #2: How are they going to avoid impact more of the wetland if the fill is in the wetland? How are they going to ensure sediment does erode into the wetland if it is on the wetland.... immediate matting... high hazard silt fence?? Response: We ensured a minimum of 10ft clear zone for construction and now show the installation of a sediment control fence/super silt fence along the entire stretch of stream and wetlands in that area. Matting can also be added if DRW requires both controls. III TOPOFFLOW Djk5crd `+' STREAM A boundary?? BANS TYP i TEMPORARY WF1LANOWPACt C. Proposed Impacts Inventory 1. Impacts Summary 1 a. Which sections were completed below for your project (check all that apply): ❑X Wetlands ❑ Streams — tributaries ❑ Buffers ❑ Open Waters ❑ Pond Construction 2. Wetland Impacts If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted. 2a. Wetland impact number Permanent (P) or Temporary T 2b. Type of impact 2c. Type of wetland 2d. Forested 2e. Type of jurisdiction Corps (404,10) or DWQ (401, other) 2f. Area of impact (acres) W1 P Fill Headwater Wetland No Corps 0.034 W2 P Choose one Headwater Wetland No Corps 0.003 W3 P Choose one Headwater Wetland No Corps 0.011 W4 T Choose one Headwater Wetland No Corps 0.012 W5 T Choose one Headwater Wetland No Corps 0.003 W6 P Choose one Headwater Wetland No Corps 0.31 2g. Total Wetland Impacts: 0.094 2h. Comments: 3. Stream Impacts If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted. 3a. Stream impact number Permanent (P) or Temporary (T) 3b. Type of impact 3c. Stream name 3d. Perennial (PER) or intermittent (INT)? 3e. Type of jurisdiction 3f. Average stream width (feet) 3g. Impact length (linear feet) S1 - Choose one - S2 - Choose one - S3 - Choose one - S4 - Choose one - S5 - Choose one - S6 - Choose one - 3h. Total stream and tributary impacts 3i. Comments: Page 4 of 10 PCN Form — Version 1.4 January 2009 \ `� ` ✓ INTERMITTENT STREAM M\ PROJECT �) 11 \�I�.( (350 L. ��' ( O P) DARY WETLAND L r ii MAMI'- Ise PROJECT /BOUN(p) l Ty(� WETLANDS 01 i. INTERMITTENT �- ��/ll l 1 f WETLAND AW�i STREAM A� `� �1/ ���1 /IY� S l� '1 �(0\.`0(2 AC) \\(625 LF) I �����_�/=�111 �l. �� l WETLAND WETLAND ✓1\` I ��\ /_INTERMITTENT\ i l 1 �� �1 `W0.03AC1 \\���J>>>>� 111 �� = \7�%// / STREAM 0 - ( �/. ( ) WETLAND G ���t ` _ \ �) I\(L��� �(0.13AC) ) �J k (OPEN WAT R �\ \\ �// 11� ; \ `l.� �; )11(/�G/ C�'� >�� �(' `l\\� �C • / l � / ((0.96 r /, A WETLAND E\\ ��(\ �� ] ) PROJECT �(0.007AC) :\\\��-� , --'" )\ ��j BOUNDARY �11I l�`I LL�/ WETLAND F�J� 1 1� cal ` _Q (TYP) % �\✓� ��` \ — 1 l// (0.006 AC) AN--^ )\�� /\ ( f O (0.05 AC).) WETLAND K� , ) o �i ! ��� / �/ _0 Z ��� / (0.0311 AC) = t \� z: ��� �� Q \ _ 'PERENNIAL STREAMP— 1 PERENNIAL� ✓� �� (1.000 LF)� I LL \STREAM C�A / �\ \ (n C ROAD SR I I IL. Y \ PROJECT; w o N LL 7�\\\\� �� 350' 0' 350' 700' 1400' SCALE: I" = 700' 0 U) a 0� INTERMITTENT STREAM M � ; PROJECT � � � VFW (NO PROPOSED IMPACT) 1��BOUNDAARY @�A'�1 \� ) �'� 1 <�-y0�� /i WETLAND a/ (� �� (NO PROPOSED IMPACT) PROJECT" BOUNDARY u3 PERMANENT WETLAND IMPACT (0.034 AC) V j '1 ��� 1 (TYP) s E ��G�/� I I(SEESHEETS 3&4) boo PERMANENT WETLAND IMPACT (0.003 AC) TEMPORARY WETLAND IMPACT (0.003 AC)` — l / (SEE SHEET 5) _�_65' DUKE POWER \� \� -(DB 228-131, 95) / """ ./`�J✓ / / /� — 150' DUKE POWERETLAND N / -(DB 209-694,216-35) \ W, 1 \l J '� I� I I I� \� � ��` � � ��j)`\, ii T � �_� ��„✓� � J / �J^I) (NO PROPOSED IMPACT)_ PERMANENT WETLAND IMPACT (0.011 AC) TEMPORARY WETLAND IMPACT (0.012 AC) / / UINTERMITTENT STREAM O / (\\SHEET 5) POWER R/W `�\ =- (NO IMPACT PROPOSED) C r f (DB 315-619) `J�\\V -(l � '.�" '/ / ,`/1 \ PROP. SANITARY 1 1 ...\�\ ` �' % �� i( SEWER (TYP) WET 115 i IF �� POND \ \\\ \�# 1 o pJ PROJECT 1'a OFF"� _ BOUNDARY ��I 1 t >� FOUNDRY & 1 / (TYP) 1 i \\�� � SUPPORT -� PERMANENT WETLAND IMPACT % (0.031 AC) � /�/ / `-�'`. ® 1 a / / O 132' DUKE \�♦ ����V f� �' -6 I�I� 1///( POWER R/W I �• /� j�, n — Q SHEET 6 wer" / I POND - '� \ _ (DB 250 473 J�. LL �PJ'�/���/�\�J✓ ► // { / r // //i/ l r%J I / \ROJECT (TYP) WOUDARY I, yam♦ // -;V,'- PERENNIAL STREAMP� !POND j l /l /! (NO PROPOSED IMPACT)_ \ c - m O a J PROP. SANITARY 77 V O O < SEWER (TYP) I — j ,� Y W 68' DUKE FUTURE SEWER / f / (SR I8 AD / �l �j POWER R/W V �PUMP STATION - //// f )_� T(DB228197) /fI'I �� , �j m LEGEND: EXISTING WETLANDS c9 1 W (0.838 AC) z PERMANENT WETLAND o 0o No _ N n F I I \\ J IMPACT (0.079 AC) z N p _o �\ TEMPORARY WETLAND o LL / IMPACT (0.015 AC) < �; 5 O / \ 350' 0' 350' 7OO' 400� _ _ _ _ 21 STREAM CENTERLINE m .' SCALE: 1 = 700 ¢ � a N N 65 DUKE POWER R/W v/ _ //✓�� 150' DUKE POWER R/W / (DB 209-694,216-35) HW-111 / PROP. STORM 0661, 0 DRAINAGE (TYP) ,p 4 / 60" RCP RIP RAP APRON La = 38 FT, W = 44 FT dsa = 1.2 FT, T = 32.4 IN �/ IMPACTED WETLAND AREA ADDITIONAL RIP RAP APRON X X 72"a cp PERMANENT \ WETLAND IMPACT \ \ \\ \ (WETLANDB-TO \, 49' BE FILLED) \ \I \150' DUKE POWER R/WX� J l� (DB 209-69 \216I35) I ��••77// I /1 0 I49' DUKEI \ �POWERR/W \ (DB 315-619) � \ LFGFNI)- EXISTING WETLANDS (0.838 AC) PERMANENT WETLAND IMPACT (0.079 AC) TEMPORARY WETLAND IMPACT (0.015 AC) STREAM CENTERLINE cL6,- NCDOT SPECIAL SEDIMENT ,A CONTROL FENCE #1606.1 UA DI-130 36" RCP 536 =EXIST. TOP OF — BANK (TYP.) 526 1 ISTING 'CULVERT 520 \� 520 —WETLAND D — — (0.2AC)-� INTERMITTENT STREAM A / � J I I NCDOT SPECIAL SEDIMENT — / CONTROL FENCE #1606.1I 50' 0' 50' 100' 200' SCALE: I" = 100' Q z J O� Q � o om _ LL �. o �z Q V O (1) m o Yco d0U m x W CL W Q H m 0 z J LL �O U) M 550 550 _v �M 545 545 �M a �g TA:10+87.89 INV. IN: 524.50 (JB-110) INV. IN: 524.50 (HW-111) INV. OUT: 523.50 (FES-113) j_'JB-1 PROP. GRADE 540 540 HW-111 STA: 0+00.15 INV. OUT: 526.00 (JB-112) FES-113 STA: 1 +71.03 535 INV. IN: 523.08 (JB-112) 535 530 530 Z O u RIP La = d50 = RAP 38 FT, 1.2 APRON W FT, = 44 T = 32.4 FT IN 525 EXIST. GRADE 520A520 525 w N Z J o L O p[ Q �6 d C) O I ­_RAP T = LL u N d _� ZZ 0 m m O a V O a-• Q O Q - w \ / IMPACTED WETLAND ADDITIONAL APRON AREA RIP 83.15 LF OF 72" RCP @ 0.50% 87.73 LF OF 60" RCP @ 1.71 % 515 515 CL O U N O L co Lo 0+00 SCALE: � u) � � 0 m z Qd K F Z O O a ¢ ¢ w rn o w m N ~ c z o �p N o < LL hi°� 11 om a` uO 1+00 I" = 6' V 3' 0. 3' 2+00 3+00 b' 12' SCALE: I" = 60' H 30' 0. 30' 60' 120' DI-128 / \, �,p DI-129 i PERMANENT \ WETLAND IMPACT ��p (0.003 AC) PERMANENT WETLAND IMPACT NCDOT SPECIAL SEDIM T DI-131 (0.011 AC)- CONTROL FENCE #1606.1 DI-130 MW�36RCP 36' RCP I= PROP. SANITARY SEWER (TYP)\ I / DI-132 \ i 42" RCP 518 EXIST. TOP OF / ' -0 4 _ i — 515 BANK (TYP.) FL DIREC°TI _ _TEMPORARY�`— INTERMITTENT \ �� ��3 i _ _--WETLAND IMPACT' �� -EXIST. TOP OF f - STREAM A� \ TEMPORARY �\ `\ �_ —WETLAND IMPACT (0.012 AC) \�— ��BANK (TYP.) 530=� _ _ _WETLAND D / (0.2 AC) 0 —EXIST. STREAM / NCDOT SPECIAL SEDIMENT CONTROL FENCE #1606.1 i�ff h I 530 ,5c� �M OD Q W Z_ J W -0 Q U � � LL Q _0 CL c �Z Q mop o z V Q t; Q N m 0 J LU d0U W m 2 7 Z (7 Z Y 0) Qo K F Z O N W N p O N II o LL 50' 0' 50' 100' 200' F m o 3k �O SCALE: I" = 100' ¢ 16 (' a U'"' U) a PROP. SANITARY / SEWER (TYP) gS yS FOUNDRY & SUPPORT yc� `:::;•'• � 14 g5 PERMANENT / WETLAN(MPACT 0 31 AC) 5g yA� (WETLAND K - TO BE i FILLED) g PROP. SANITARY SS / SEWER (TYP) DI-140 y30 DI-134 P 60 RCP Rca l ` 68' DUKE I\ \ I N� POWER RAN \ \\ WET POND #2 53a 508 Z 520 J 526 / Q > 516 � � 518 a Q .0 514 0 - 00 LL �ECTLON '� T� �_ — 505HW-4 _� O s_? WETLAND E. �� EXIST. STREAM r / \05AC) \\\ — CENTERLINE y\� ✓\� WETLAND F \ \ \ \\ �J \ Y (0 EXIST. TOP OF ^ m O \ (0.02 AC) \ _PERENNIAL -� V BANK (TYP.) _ - v� / % \ S?\\ --STREAM C ✓ G-- 9.f L Q L p ' \(2,200 LF) /� == 5 //NCDOT SPECIAL SEDIMENT= — \�� d O () 51 -� CONTROL FENCE #1606.1 LEGEND: RIP RAP APRON EXIST. TOP OF w BANK (TYP.) m EXISTING WETLANDS Ledso F.25 4 IN, T 1 6.75FN Z �.- - . • W .--.- (0.838 AC) Q z PERMANENT WETLAND IMPACT Y U °4 rn ma er`l 0 z .e gM N � F N p z O O N II F o �� ALL 50' 0' 50' 100' 200' 0 m o O SCALE: I" = 100' a- ¢ U)