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Home My WebLink About20111023 Ver 1_401 Application_20111118 � � � 1 102 3 Robert J Goldstean r�nd Associates, Inc RJ(�&A �NVtRONMENT AL C UNSUt 1 ANTS 1221(orporaUOi�[arkway Su�te 100 Since 1J85 1 el (919)872 1174 Raicigh North Camluia 27fi IU i'aa (919)872 9214 c mad reoldtitein a RfGAcaroima com ��ebstte �+�+v�v KJC;Acvnlu�a cona REC�IVED 10 November 2011 N C L�pR of�N(2 �o� �s za�a Mr Andy Wdliams Wlnston-Satem US Army Corps of Engmeers Re �ona�ot�� 3331 Heritage Trade Orive suite 105 Wake Forest NC 27587 p ��a�� Ms Sue Homewood D NC Diwsion of Water Quahty ��IU V DENR Wmston Salem Regional Office � g 20�1 585 Waughtown Street �ENR W�nston Salem NC 27107 yr��,�� R��n, nch Re PCN for Lake Reidsvdle Dam Repairs Rockingham County(Jordan Lake basm} Dear Andy and Sue � Attached is the PCN(NWP 3)far the C�ty of Reidsvdle s proposed repairs to lake Reidsvdle Dam on Troub�esome Creek in southeastern Rockingham County Based on my conversations with Sue in August the pro�ect complies with 401 General Certfication 3687 cond�tions and no wr�tten approval from DWQ Es requ�red The attached PCN copy we are sending to Sue is therefore a courtesy copy Lake Reidsv�lle s existing spd{way has structural probiems due to erosion beneath the concrete slab and the lake has been maintamed four feet belaw normal pool for most of the past year to mmimize further damage and risk of catastrophic fatlure Schnabel Engmeenng of Greensboro �s designing the replacement spdiway which wdl be smaller than and ent�rely within the footp�int of the existing spolway No wetlands or stream channel will be affected by the pro�ect Impacts w�ll occur in the lake(open waters although at present most of this impact area�s dry to the drawdown} and Jordan Lake ripanan buffer as itemized in the PCN The existing emergency spolway wdl no longer be needed and wdl be filled The pro�ect wd! �estore the lake to its normal pool level and wtli not affect the size or water use capacity of the lake The raw water mtake and WTP w�ll rema�n in operation durmg canstruction We delineated two wetland a�eas on the Troublesome Creek floodplain�ust downstream of the proposed impact area as shown m Figure 5(attached) We have not included stream and wetland data forms m the PCN because these features wdl not be affected but�f you want the data forms let me know and I will fonrvard them NhPA 8 SEPA Erniratruenla!Doctrnre�NS tA fTS GE J Jrnisrlrclro�rnl{Yerla�rd&S1rea�+Bi�er Uebneatrorwc 1 404 407 Pernnls 1 G1S/GPS hlaypr tg 1 liate QuuMy Su�dtes l Strennr&1i e!!n x!M�trgarron mrd Reslorunoii 1 F�rdrnrgered Spec res Sun crys 1 Brologrca!Azsess ue�ils&Carsenatrmll laus/ 1Vir1e�In��rkes�R Ilesenars J 1f'atei I nres R Tma1 nerif Pluirrs 1 Seis e�f�iee�lYa te�are 7�r�lm��J! /nslream Flo�v A»a!y ses I /nlerbnslir 1�oiufe�Cerleficales ! Wale�shed Assess�xrxl&Ma ragenrenr 1 Archarologrcnl 5r ive}s aul 7 esHr�g/ PI Us /Sr[e Assess enls/Parks c�(r e ni a�s Plmxur�g/C{f M71 GraN Apphcanvns a 9 Robert J Goldstein �rn�l Assocrates, lnc RJG&A �NVIRONMLNTAL CUNSUL IANTS ` Feel free to emaii or call me at 919 872 1174 if you have any questions about�urisdictional , waters and buffers at the site or the PCN applicatron Contact Rob Ind�i at Schnabel Engineenng (336 274 9456)or Kevin Easan at C�ty of Reidswlle Publtc Works(919 996 3940) Ef you have questions about pro�ect desrgn and construction details or WTP operat�on Sincerely �� Gerald Pottern sernor biologist gpottern a�RJGAcarolina com � 1 age 2 oE wqr�9 —_ � � Office Use Only '� Corps aciion ID no o c 1 i > 1 � ,�, � o Y qWQ pro�ect no F�rm Version 1 3 Dec 10 2U08 P�e-Construction Notificat�on (PCN) Form � A A I�cant Information Y 1 Processing 1a Type(s)of approval sought from the Corps �Section 404 Perm�t ❑Section 10 Permit 1b Speafy Nationwide Permit(NWP)number NWP 3 or General Perm�t(GP) number 1c Has the iVWP or GP number been verifred by the Corps� �Yes Andrew W�liiams ❑No 1 d Type(s)of approval sought from the DWQ(check all that apply) �401 Water Quality Certification—Regular ❑Non 4Q4 Junsdretional General Permit ❑401 Wate�Quality Certificat�on—Express �Ripanan Buffer Authorization 9 e Is this noti�cation sofely for the record For the recard only for DWQ 4fl1 For the record only for Corps Permit because wntten approval is not requ�red� Cert�fication �Yes ❑No []Yes � No 1f Is payment into a mit�gation bank or in I�eu fee program proposed for mitigation �Yes �No of�mpacts� If so attach the acceptance letter from mitigation bank or�n lieu fee program 1 g Is the pro�ect focated m any of NC s twenty coastal count�es If yes answer 1 h ❑Yes �No below 1 h Is the pro�ect located within a NC DCM Area of Enviranmental Concern(AEC)� ❑Yes �No 2 Pro�ect Informat�on 2a Name of pro�ect Lake Reidsville Dam Sptllway Repa�r 2b County Rockingham 2c Nearest murncipality/town Reidsv�ile 5 m►les sauth of downtown 0 S m�west of US 29 BlJS 2d Subdivis�on name NA 2e NCDOT only T I P or state NA pro�ect no 3 Owner Informat�on 3a Name(s)on Recorded Deeds C�ty of Re�dsv�lle 3b Deed Book and Page No NA 3c Responsible Party(for LLC if Re�dsv�tle Public Works Dept appiicable) 3d Street address Re�d Lake Road � 3e Mailmg Address i 100 Vance Street Reidsv�lle NC 27602 3f Telephone no 919 996 3940 3g Fax no 919 996 7633 3h Emad address keason@ci rcidsv►Ile nc us Page 1 of 12 PCN Form—Version 1 3 December 10 2008 Version 4 Appl�cant Information{if different from owner) � � 4a Applicant is UN ller ❑Agent ❑Other specify 4b Name Kev�n b Eason P C Reidsville Pubhc Works D�rector 4c Business name See Owner Informltian 4d St�eet address 4e C�ty state zip � � 4f Telephane no 4g Fax no 4h Emad address 5 AgentlConsultant Information(�f appl�cable) Sa Name Verald Pattern (L nvironmental Consultant) 5b Business name Robert J Goldstcin&Assoc�ates Inc 5c Street address t221 Corporauon Pkwy suite 100 5d Crty state zip Raletgh NC 27G10 5e Telephone no 919 872 1174 5f Fax na 9l9 872 9214 5g Emad address Gpottern@RJGAcamlmA com 6a Name Robert Indi� P� (�ngmeermg Consultant) 6b Business name Schnabel�ngmeermg 6c Street address 1 f A Oak Branch D►�ve 6d City state z�p Greensboro NC 27407 6e Telephone no 336 274 9456 6f Fax no 336 274 948G 6g Email address rtndri@schnabc) eng com � Page 2 of l2 PCN Form—Version 1 3 December 10 2008 Version B Pro�ect Information and Prior Pro�ect H�story 1 Property IdenUficat�on 1a Property identification no (tax PIN or parcel ID) Parcel Na 142027 PIN #7992U13G6892 1 b Site coordinates(in decimal degrees) i at�tude 'i6 2805 Lon�itude 79 6621 1c Property size Parcel— 1130 acres Lake surface area 600 acres 2 Surtace Waters 2a Name of nearest body of water(stream river etc) Lake Reidsviile on Troublesomc Creek 2b Water Quality Classificat�on of nearest receiwng water Lake WS III NSW CA Creetc WS V NSW 2c River basin Haw R�ver Jordan Lake basin USGS 030300Q2 3 Pro�ect Description 3a Descnbe the existing condifions on the site and general land use in the pro�ect vicirnty at time of th�s application Lake Re�dsville was bwlt�n 1974 and�tnpounds roughly 720 acres at normal pool elevatron w�tha watershed area of 53 sq mi 1 he dam is !720 feet long,w�th a hydraul�c he�ght af 33 6 feet The existmg prim�ry spolway at the southeast corner of the (ake is a�prox�mately 450 feet wide at the crest 380 fec.t wide at ihe foot and 300 feet tong from crest to foot A t00 foot w�de drop chute section runn�ng down the center of the spillway carr�es normal flows and large storm flows that overtop the drop chute spread out across the full width of the spillway A 70 foot w�de grassed aux�tiary spillway channel to the r�ght (soe�th)of the primary spol�vay conveys extre�ne storm flows beyond the primary sp�llway capac�ty The primary sp�llway is unstable due to erosional undercutting and the lak�level �s currently mamtained four teet below norma!pool usmg siphons as mstructcd by NC Dam Safety Most of the lake shorei�ne ts forested except along ttze dam and a few farm fields that encroach toward the shorel�ne T he Re�dswl(e water treatment plant(WTP)is located 1 100 feet north oi the spillway ammed�ately east of the dam and the raw water miake is 800 feet north of thc spillway Reid Lake Road prov�des access ta the WTP and dam from the north ��st off US 29 Bus There is no road access from the south s�de Surround�ng land use�s low density res�den4al and ruraUagr�cuitural There are several homes along Re�d Lake Road the nearest one to the lake�s 70Q feet north of the WTP 7'he nettrest residence to the souih�s 800 feet south of the spiHway and buffered from the pro�ect construction area by 600 feet of forest Two ch�nnels convey flow below Lake Reidsv�lle dam Tlie southern channel created when the dam was bu�lt carr�es flow from tl�e pr�mary sp�liway at the southeast conier af the lake The northem channel�s the ortgmal pre impoundment channel of Troublesome Creek tocated 1 000 teet north ofthe spolway and carraes excess flow from the raw water pump skation plus WTP process wastewater from the sed�ments�t�on ponds These two channels converge 1 80Q feet east of the dam Troublesome Creek downstream of Lake Re�dsvElle Dam ancludmg the two channels above the�r confluence �s a low grad�ent swamp stre�m Multiple beaver dams mamtam standing water m these channels durmg dry weather There is no USGS gage on Troublesome Creek but Reidsv�lle W fP staffreport that the water elev�t�on and lateral extent of impoundment on Troublesome Creek at the US 29 BUS brid�e 3 300 feet downstreatn of the dan�,shows httte fluctuat�on between periods of normal versus low ramfall 3b List the total estimated acreage of ali existing wetlands on the properly Two wetlands are located on the Troublesome Creek floodptam�mmedtately downstream(east)ofthe proaeet cunstruction area Wetl�nd RB �s a 0 U26 acre Imear atluvtal forest wetland(delineated}�ust below the boulders at the faot of the spiliway Wetland RA�s located 250 ft NNE of Wetland RB Only the southwest corner of th�s wetland was delmeated(apE�rox 0136 acre)clo5est to thc,profect area Wetland RA cont�mies eastward and northward total size is unlcnown There�s no wetland along the lake sharelme withm !00 feet ot the praposed construct�on area Other wetlands may exist on the reservoir property along the lake shoreline and on the creek floodplam below the dam but were not mvestigated � Page 3 of 12 PCN Form—Version 1 3 Oecember 10 2008 Version 3c List the total estimated linear feet of all existing streams{�ntermiftent and perenniaf)on the property � The two cl�amiels of Troubl�somc Cr�,ek plus a 65 R lon�mterm�ttent trtbutary ofthe southern channel are all doHnst�eaEn (east)ot the proposed construchon are� Total stream Iengdt on the reservorr property cast of Ihe dam�s approx�mately 3 000 fcet There ts no siream flow�ng mto the lake within 100 feet of the pioposed construc,bon area Lake feedar streams may exast on the reservo�r property elsewhere along the l�ke shorehne but wt,re not mvestigated The reservoir pooi(opcn watei s)and dam spillway are thc,only water areas�n the pro�ect consU uct�on area 3d Explain the purpose of the proposed pro�ect In 2010 a concrete slab on tlae edgc of the spolway cotlapsed due to undercutttng and eros�on oFthe beddmg mater�al beneath the spillway To prevent further darnage the C�ty lowc,red ihe lake ievel tour feet below normal pool with s�phons and made temporary repairs wrth gravel and concrete fill but further erosion beneath the spiliway slab contmues to thteaten the structure Schnahel Engineenng of Greensboro investigated sever�I rc.pa�r alternaUves and determined that spillway replacement�s needed to control flow and eros�on beneath the slab and halt the ongomg deteraorat�on The new pr�mary spillway w�ll occupy the same footprrnt as the ex�st�ng o��c but will be slightty smaller ui both length and width �nd is designed to convey the dc.s�gn storm flaw(3/4 PMP flow)without an auxil�ary sp�llway Tlie ex�sUng auxiliar} spillway �ust south ofthe nght spillwtty tra�mng wall will be blocked off by extendm�,the right dam embankment across�t No change is proposed to the water mtake structure located SUU teet north of the pr�m try sp�llway 71ie water mtake and WTP�vdl rema�n m serv►ce during thc spillway replacement work 3e Describe the overail pro�ect m detad �ncluding the type of equipment to be used Contractors wrlf access the sp�llway construction area through the WTP property to d�e north no new temporary access road�s needed The exisUn6 mowed area between the WTP and spolway will be used for construcUon stagmg na fore5t cteanng ts requued A portable colferdam will be placed at the existuag edge ot water upstream of the sp�llway and flow wil)be bypassed araund the sp�llway area us�ng s►phons oe other means so tl�at all construction work�s conducted dry Sand and sediment m the dewatered spillway approach arez betwecn the cot�'erdam and the spillway(320 x 100 —0 734 acre)witl be excavated ciown to 4 feet below normat poal Because the lake has been dra�vn down 4 teet for nearly a year the material to be excavated �s already dewatered and neglig�ble runoff from the excavated sed�ment w�ll oc�ur The excavated sand and so�l will be used as shell material for extendm�the embankment sect�ons on the repiacetnent spiliway ) The ex�stmg sp�llway sfab w�lt be demolished and the debr�s removed or reused on stte as fil!matenal�f su�table Port�ons of the ex�stmg end sill w�ll remam and the boulder and forest area below the end s�ll w�ll not be disturbed The proposed replacement w�ll be a concrete Ogee sp�llway constructed on the fa�tprmt of the old spillway slab 12 inches th�ck with 2 feet of dram fil)below The new spil(way crest elevation wili be at the exisUng low stage weir(drop chute)elevat►on of 690 7 feet The new spiliway w�ll be steeper and slightly shorter than the exist�ng sp�llway and the crest width will be reduced from the ex�stin�,450 feet to 280 feet New concrete trainmg walls w�ll be erected or►each s�de of the new narrower slab then the old traming walls wdl be demohshed and the dam embankments wdl be extended on each side ta fill the void between the old (outer)�valls and to the new(mner}walis New core material for the embankment extens�ons wilf necd to be imported and materrat from the spilJway and approach channel excavat�on will 6e su�table tor embankment shell matenal The proposed sp�tlway chute w�ll bc steepened to reduce the overal) le.n�th of the spillway The ex►sting 70 ft wide auxif�ary spiliway(ad�acent to the right trammg�vall)wdl no longer be requ�red to pass the des�g�� storm and hydraulic modeling tnd�cates it would be unstabie durmg design storm flows(depth�5 ft)�f left m place 7 0 prevent failure the right embankment sect�on will be extende.d southward across the auxiliary spiflway to prevent lal.e outflow from entenng�t Spo�f mater�al from excavation of the old spillway slab will be used to construct this embankment The Lake Re�dsville raw water mtake and WTP wdl rcma�n m operation durmg spillway repla�ement work All demol�tion excavat�on and conshuction work wift be compteted in the d►y so turb�d►ty ampacts at the rdw water�ntake should be neg(ig►ble However as an added precaution tb protect raw water qual�ty a turbidity curtain will be installed m tlie reservoir between tt►e coffer dam and tfie mAin lake area ►n addriion to land based eroston&sed�mentat�on cootrol measures Page 4 of 12 PCN Form—Vers�on 1 3 December 10 2008 Version � � 4 Jurisdictional Determmatfons v y J� ��~ � 4a Wave�unsdictional wetland or stream determinations by the Corps or State been requested or obtained for this property/ ❑Yes � No ❑Unknown pro�ect(includ�ng all priar phases}m the past� 4b tf the Corps made the�urisdictional determination what type �preUmmary ❑Final � of determination was made� 4c If yes who delmeated the�unsdictional areas� Agency/Consultant Company Name(if known) Chnstopher Hopper RJG&A Other Robert J Goldstcin&Assoc�ates (delmeated July 20l 1 not yet ACl'ver�fied} 4d if yes list the dates of the Corps�urisdictional determmations or State determmat�ons and attach documentat�on 5 Pro�ect History 5a Have permits or certifications been requested or obtained for �Yes ❑No � Unknown this pro�ect(mcluding al1 pnor phases)�n the past� 5b If yes explam tn detaU according to help file instructtons Prior repairs to th�s sp�llway�vere made�n 1994 As far as we are a�vare no 404-00! perm�t appl�cation was reqiured or prepaced for ihe previous repa�r work 6 Future Pro�ect Plans � 6a Is this a phased pro�ect� ❑Yes �No 6b If yes explam Page 5 of 12 PCN Form—Version 1 3 December 10 2008 Version Proposed Impacts inventory 1 lmpacts Summary � 1 a Wh�ch sections were compfeted below for your pro�ect{check all that apply} Wetlands ❑Streams tributanes � 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 2b 2c 2d 2e 2f Wetland impact Type of Junsdiction number— Type of impact Type of wetiand Forested (Corps 404 10 Area of impact Permanent(P}or (if known) DWQ—non 404 other) (acres) Tem ora T W1 ❑P Q T none ❑Yes ❑Corps ❑ No ❑DWQ W2 �P O Y ❑Yes [] Corps ❑No ❑DWQ 2g Total wctland�mpacis 2h Comments Wetlands occur an the Troublesome Creek floodplam downstream of the dam and spillway 7his area w�ll bc avoided and no�mpact to wetlands w�ll occur durmg pro�ect construct�on 3 Stream Impacts ~ If there are perenrnal or interm�ttent stream impacts(includmg temporary impacts}proposed on the site then complete this question for all stream sites impacted r 3a 3b 3c 3d 3e 3f 3g Stream impact Type of impact Stream name Perennial Type of�unsd�ction Average Impact number (PER)or (Corps 404 10 stream length Permanent(P}or intermittent DWQ—non 404 vindth (Imear Temporary(� (INTj? other) (feet) feet) S1 ❑P Q T nonc ❑PER ❑Corps ❑INT ❑DWQ S2 �P 0 T ❑PER ❑Corps ❑INT ❑ DWQ 3h Totaf sfream and tr�butary rmpacts 3i Comments Troublesame Creek(two perennial channels)and a smali interm�uent stream occur downstrea►n of the ciam and spillway This area w�il be avo�ded and no�mpact to streams wili occur durm�pro�ect construcpon 4 Open Wate�Impacts If there are proposed impacts to lakes ponds estuar�es tnbutanes sounds the Atiantic Ocean or any other open water of the U S then indEVidually list ail open water impacts below 4a 4b 4c 4d 4e Open water Narrte of waterbody impact number— (if appl�cable) Type of impact Waterbody type Area of impact(acres) Permanent(P)or Tem ora 01 ❑P�T Lake Re�dsv�lle Cofferdam 8i Bed ExcavaUon Lake 0 734 acre 02 ❑P�T �ke Reldsville pemolish and Rebudd Spiliway Dam spillway 0 688 acre Dam Sp�llway 03 �PQT 4f Total o�en water�mpacts Temp— l 422 acre Page 6 of 12 PCN Form—Version 1 3 December 10 2008 Version � 4g Comments The sp�llway approACh a�ea of'the lake bed�vill be excavated 1 to 4 ft dtep�r but no loss of lake funct�an�vdl occur 1 his area was non vegetated lake bed p��or to dewatenng Afler construct�on the pi oJect will allow mne mtles of dewatered httoral shorelme habrtat ro be re submei ged and lake et�vaUon and surface area will return to 2010 c�ndit�ons 'i he sp�lh�ray open water area�s calculated based on the central diop chute(100 x 300 feet=0 G88 acre)that cai�ies Ord�nary High Water flow 3 Pond or Lake Construction ff ond or lake construction ro osed then com lete the chart below 5a 5b 5c 5d 5e Wetland Impacts(acres� Stream Impacts(feet) Upland Pond ID proposed use or purpose of � (acres) number pond Flooded Fdled Excavated Flooded Ftlled Excavated Ftooded p1 NA 0 0 0 0 0 0 0 p2 NA 0 0 0 0 Q 0 0 5f Total U 0 0 0 U 0 0 5g Comments Ex�stmg water supply reservo►t b�ilt m 1974 5h Is a dam high hazard permit required? Lake Retdsvdte Dam is classitied 6y NC,Dam �Yes ❑No If yes permit!D no Safety Program as a h�gh liazard dam NC Dam Safety NID iD#NC01559 State ID#ROCICI 027 5i Expected pond surface area(acres} 720 acres(ex�stu�g) 5� Size of pond watershed(acres) 34 000 acres(existing) Sk Method Of construction Earthen embankment concrete sp�llway 6 Buffer Impacts(fpr DWQ) If p�o�ect wdl impact a protected r�panan buffer then complete the cha�t below If yes then mdiwduaffy list all buffer�mpacts below If any�mpacts require mitigat�on then you MUST fill out Section D of th�s form 6a ❑Neuse Tar Pamlico �Other Jordan Lake Pro�ect is in which protected basin� ❑Catawba ❑ Randleman 6b 6c 6d 6e 6f 6g Buffer�mpact Reason for impact Buffered Water Buffer Zone 1 impact Zone 2 impact Permanent(P)or or Stream name mitigation (square feet) (square feet) Tem ora T re u�red� B1 �P Q 7 �xcAVate upland Lnke Retdsv�fle ❑Yes 3384 490 �onvert ta lake �No B2 � P�T Crade abutmcnt and Lakc Retdsville ❑Yes 650 1320 restore grass �Na B3 ❑P�T Grade abutment and Lake Re�dsv�lle �YeS 1840 1600 restore grass �No B4 ❑P�T Rebu�ld spolway I ake Re�dsvdle �No S 8350 6380 and restorc concrete 6h Total buffer�mpacts 14220 9790 6i Comments Cx�stmg buffer areas to be disturbed are either grassed or concrcte All grassed buffer areas wdl be restored with grass after�,radmg ExiStmg concrete(old sp�llway)areas w�ll be restored with concrete(new sp�llway)or grass(abutments) Page 7 of 12 PCN Form—Vers�on 1 3 December 10 2008 Version � D Impact Justification and M�tigation � 1 Avoidance and Minimization 1 a Specificaily describe measures taken to avoid or mirnm�ze the proposed impacts m designing pro�ect The replacement spillway has been designed n�rrower and steeper thai�the old spillway and will be budt enhrely wtthm thc footprmt ot the old spillway 7 he existu�g end sill wal)and boulder area beyond�t whete Troublesome C reek resutnes as a skreatn cltanne! wiil not be m�pacted The proposed 4 ft deep excavation�n front of the spilhvay wdl help prevent fake sediment from wash�ng over the new spillway and depnsitm�m Troublesome Greek below the dam The new sp�liway w►II safcly convey the design storm 1�ow and chmmate the need for mauuauunb the aux�l�ary spiflway alongs�de the pnmary spilfway 1 b Specifically descnbe measures taken to avaid or minimize the proposed tmpacts through construct+on techrnques The replae.ement sp�llway has been des�gncd narrower�nd steeper than the old sprilway and wiil be budt enUrely wrthin the footprmt of the old spolway The ex�st�ng end sill wall and boulder are�beyond�t where Troublesamc.Creek resumes as a stream channei wdl itot be�mpncted The proposed 4 ft deep excavation m frant of the spillway will help prevent lake sediment fro�n washmg over the ne�v sp�llway and depasiting m Troublesome Creek belo.v the da�n The new spillway Hdl safcly convey the des�gn storni flow and el�mu�ate the need for matntammg ihc auxd�ary sptllway alongside the pnmary spolway 2 Cvmpensatory M�tigation for Impacts to Waters of the U S or Waters of the State a Does the pro�ect require Compensatory Mitigat�on for Yes �No impacts to Waters of the U S or Waters of the State� 2b If yes mit�gat�on�s requ�red by(check a!I that apply) DWQ ❑Corps Mit�gat�on bank c If yes which mitigation opt�on wdl be used for this pro�ect� Payment to in lieu fee prog�am Permittee Responsibte Mitigabon 3 Compfete if Using a M�tigation Bank 3a Name of Mifigation Bank NA 3b Credits Purchased(attach receipt and tetter) ype NA uantity NA c Comments NA � 4 Complete if Making a Payment to In I�eu Fee Program a Approval letfer from in I�eu fee program is aitached Yes b Stream mdigation requestgd A linear feet c if using stream md�gat�on sfream temperature warm ❑cool Qcold d Buffer mitigation requested(DWQ only) � A square feet e Riparian wetland mit►gatEOn requested A acres f Non npanan wetland mitigat�on requested A acres g Coastal(tidai)wetland mitigation requested A acres h Comments ' Complete if Using a Perm�ttee Responsible M�tigat�on Plan Page 8 of 12 PCN Form—Vers�on 1 3 December 10 2008 Version a If usmg a permittee responsibte mitigation plan provide a descnption of the p�oposed m�t�gation plan NA 6 Buffer Mit�gation(State Regulated Riparian Buffer Rules)--required by DWQ a W�II the pro�ect result m an impact within a protected riparian buffer that requ�res ❑Yes � No buffer mitigation� b If yes then identify the square feet of impact to each zone of the riparian buffer that requires mitigation Calculate the amount of mitEgation required c d 6e Zonc Reason for impact Totat impact Multiplier Required mitigation (square feet) (square feet) Zone 1 NA NA 3(2 for Cafawba} NA Zone 2 NA NA 1 5 NA 6f Totai buffer mitigat�on required NA g tf buffer m�trgation is required discuss what type of mitigation is proposed(e g payment to pnvate mitigation bank permittee responsibie r�panan buffer restoration payment into an approved�n lieu fee fund) NA h Comments NA E Stormwater Management and Diffuse Flow Plan(required by DWQ) 7 D�ffuse Flow Pian 1 a Does the pro�ect include or�s�t ad�acent to protected npanan buffers rdentified �Yes ❑ No within one of the NC Riparian Buffer Protection Rules? 1 b If yes then is a d�ffuse flow plan mcluded� if no explain why COmmentS No new tmperv�ous surf'ace will be added The new spipway wall be budt �Yes � No within the footpr�nt of thc old spiltwuy D�ffuse flo�v�s not appl�cable on a dam spillway carry�ng concentrated outflow from a lakc 2 Stormwater Mana ement Plan 2a What is the overali percent imperviousness of this pro}ect? NA% 2b Does this proJect require a Stormwater Management Plan� ❑Yes �No 2c If this pro�ect DOES NOT require a Stormwater Management Pian explam why See response� i b above 2d if thrs pro�ect DOES require a Stormwater Management Plan then prov�de a bnef narratwe descript+on of the plan ❑Certified Local Government 2e Who wdl be responsibte far the review of the Stormwater Management Plan? ❑pWQ Stormwater Program ❑DWQ 401 Un�t 3 Certifled Local Government Stormwater Rev�ew 3a In which local government s�urisdiction is�th�s proJect? C�ty of Re�dsv�lle Page 9 of 12 , PCN Form—Vers�on 1 3 December 10 2008 Version ❑ Phase 11 � N5W 3b Which of the following locally implemented stormwater management programs �(�SMP apply(check all that apply) �Water Supply Watershed � ❑Other 3c Has the approved Stormwater Management Plan with proof of approval been [i Yes � No NA attached� 4 DWQ Stormwater Pro ram Rev�ew ❑ Coastal counties ❑ HQW 4a Wh�ch of the following state implemented stormwater management programs apply � ORW (check all that app�y) ❑ Session Law 2006 246 ❑ Other 4b Has the approved Stormwater Management Plan with proof of approval been attached� ❑Yes � No NA 5 DWQ 401 Umt Stormwater Rev�ew 5a Does the Stormwater Management Plan meet the appropnate requirements? �Yes ❑No Sb Have al!of the 401 Urnt submittal requirements been met� [�Yes ❑No F Supplementary Information 1 Environmentai Documentat�on(DWQ Requirement) 1 a Does the proJect mvolve an expenditure of pubiic(federal/state/local)funds or the �yes ❑No use of publ�c(federal/state}fand� 1 b If y�u answered yes to the above does the p�oJect require preparation of an enwronmental document pursuant to the requrrements of the NaGonat or State ❑Yes �No (North Carol�na)Environmental Poficy Act(fVEPA/SEPA)? 1 c if you answered yes to the above has the document review been final�zed by the State Clearing House� (If so attach a copy of#he NEPA or SEPA final approval letter) ❑Yes �No Comments Mamtenance and rehab�litation of an ex�stmg dam does not requ�re ShPA review according to NC DENR mmimum cntena Z Vioiations(DWQ Requ�rement) 2a Is the site in violahon of DWQ Wetland Rules(15A NCAC 2H 0500) Isolated Wetland Rules(15A NCAC 2H 1300) DWQ Surface Water ar Wetland Standards ❑Yes �No or Riparian Buffer Rules(15A NCAC 26 0200)� 2b Is this an after the fact permit application? ❑Yes �No 2c If you answered yes to one or bofh of#he above questions prov�de an explanation of the violat�on(s) NA 3 Cumulative impacts(DWQ Requi�ement) Page 10 of 12 PCN Form—Version 1 3 December 10 2008 Version 3a Wdl this pro�ect(based on past and reasonabty anticipated future impacts)result m �Y�S � No add�tianal development which could impact nearby downstream water quality? 3b If you answered yes to the above submit a qualitative or quantitative cumulative impact anafysis in accordance v►nth the mosi recent DWQ policy If you answered no provide a sho�t narrative descnption NA 1'he proJect w�ll not�ncrease lake elevat�on or usable capacity �t�s solety for dAm safety pu�poses not for growth 4 Sewage Disposal(DWQ Requirement) 4a Cfearly detad the uttimate treatment methods and disposition(non discharge or discharge}of wastewater generated from the proposec!pro�ect or avadable capacity of the sub�ect facility NA The proJect will iiot generate sanitary wastewater Wastewatc.r from the ex�stmg WTP�s plumbed to the Criy sewer system W f I'process wastewater�s d�scharged to the northern ciiannel of 1 roublesome Creek 700 feet northeast of the sp�llway 5 Endangered Species and Des�gnated Cr�t�cal Nab�tat(Corps Requlrement) 5a UVili this pro�ect occur m or near an area w,th federa!!y protected speaes or �Yes �No habitat� 5b Have you checked with 1he USFWS conceming Endangered 5pecies Act �Yes ❑No impacts? � Raleigh 5c If yes mdicate the USFWS Field Office you have contacted ❑ Ashevdle 5d What data sources did you use to determ�ne whether your site would impact Endangered Species or Designated Critical Nabitat� US FWS and NC NHP onl�ne lists of protected species rc,ported from Rockingham County�nclude three federally I�sted spec�es James Spinymussel Roanoke Logperch and Smooth Coneflowee A field survey by RJG&A in July 2011 detnonstrated that no suitable hab�tat for tederally endangered or threatened species ex�sts m the proJect area A coneurrence letter from John Etlis at the Raletgh FWS office�s included wtth this PGN ***attach 6 Essent�ai F�sh Habitat(Corps Requfrement) 6a Wdi this pro�ect occur in o�near an area designated as essentiai fish habFtat? �Yes �No 6b What data sources d►d you use to determ�ne whether your site would impact Essent�ai Fish Habitat� NC DMN and NC WRC 7 H�storic or Prehistor�c Cultural Resources(Corps Requirement) 7a Wiil this project occur in or near an area that the state federal or t�ibal governments have des�gnated as hav�ng h�stonc or cuitural preseroat�on �Yes �No status{e g Nationai H�stonc Trust des�gnation or prope�ties significant m North Carolina h►story and archaeology)? 7b What data sources did you use to determine whether your s�te woutd impact historic or archeologicat�esources� Lake Re�dsvilie Dam�s nol a historic s�tructure and the pro,�ect construct�on area�s all prev�ously d�sturbed land tbat was filled and graded when the dam was budt�n 1974 There is virtually na likel�hood of s�gntficant archaeologtcal or h�stor�cal resources remam�ng m the pro�ect area Page l 1 of 12 PCN Form—Version 1 3 December 10 2008 Version 8 Flood Zone Designation(Corps Requirementj 8a Will this project occur m a FEMA designated 100 year floodpfaFn� �Yes ❑No 8b If yes explam how pro�ect meets FEMA requirements A Conditional Letter of Map Revision(CLOMR)documenfmg the mciease in the 100 year floodpla�n elevaUons has been prepared and wdl be submitted to North Carolina Floodplam Mapp�n�, Program(NCFMP)ta mcet T�MA rec�wrements 8c What source(s)did you use to make the floodplain determinat+on� Digitai Floodplam Insurance Rate Maps(DF'IRMs)for definmg the l00 year effectrve floodplam elevntEOns were used 1-IE,C RAS models were obtamcd fiom NCFMP The�nodels were mod�fied to mcorporate the proposed spiliway cond�t►ons and evaluate tmpacts to the 100 yea� floodplam of the proposed spillv�ay Kevin E Eason P h �i u -�-� ,— Re�dsv�lfe Publ�c Works D�rector <l�'t� 26 October 2011 ppl�canUAgent s Signature A IicantlA ent s Prmted Name �a9e nature is valid orr�tyy�f an$uthorizahon letter irom the appUCant Date PP 9 �s pravteed} ? � � Page 12 of 12 PCN Fo�m—Version 1 3 December 10 2008 Version -----.._ F �.lnrted Sta�es �epartmcnt of the Intertor � � 1 [Sl[AND W(L,DLIFE S) RVICf Ralei�,h F�eld OFfice aQ Post()f�'icc Rox 33726 '4R� e Rnl�i�ti North Caiolm�27636 3726 Se�tembei IS 2f)11 Gerald Pottern Robe�t J Goldste�n &Assac�ates Inc 1221 Col porat�on Parkway,Su�te 100 Ralci�;h NC 27610 Re Rcidsv�lle Lftke Spillw iy Rockui�,ham Caunty Dea� Mr Potte�n I hzs Ictte� is to mform you that a l�st of all federally protected eudangered and threatci�cd species with known oc�urrences in No�th(,arolina is now avatlable on the U S F�sh and W�tdlife Sei v�ce s(Serv�ce)web page at http//www fws gov/raleigh Therefore if you have pro�ects that occur within the Rale�gh Field Office s area of resl�ons�bility(see attached county [ist) you nn longe� need to contact the RAleigh Nield Office toi a i�st af fc,deially protected spee�es Uw wcb pa�c contams a comp(eEc and itequently t�ndated l�st of�Il endangered and threatened spee,ies proteeted by the piov�sions of tiie�nciangered Spec�es Act of 1973 as�mended(1� U S C I S3 l et aeq)(Act},and a list of federai spec�es of concern� that are known to occur in cacli county in North Carolina Sect�on 7 of the Act requ�res that all;federa!agenc�es(oi theii des�gnated non-federal repieseritative) in consultat�on wtth the Serv�ce �nsure that any action federally author�zec�, fimded,or carried out by such agencies is not likety to�eopardtLe the continued existence of any fec�eratly i�sted eRda�igered or tl�reatened spec�es A biolog�cat assessment or evaluahon may be prepared to fulfill that requirement nnd �n deterrrt�mng whether addtttonAt consultat�on with the Se�v�ee is neeessary In add�tton to the federally protec,tcd species list intormation on the spec�es life h�stoncs and hab�tats and mfornnatson on canpleting a b�ological assessment or evaluation and can be found on our web pa�e at http//www fws gov/rale�gh Please check the web srte often for updated mformat�on o� changes � Thc term fedcral sp�ies of coitcertt �efers to thosc species which the Service belicv�s nit�,ht be�n need of concentratecl conservat►an achons Federal specaes of conc�rn rece�ve no legal protechon and their des�gnation does not�tec,essl�ily unpl} th�t thc s�ccics will evc.ntually hc f�ropos�d foi list�E�g as�federally endangered or IhreAtened sl�twes i-(oweve� we tecommc�id th�t nll pincttcablc mc,asures bc flkc.n to�vo�d or mminuze adverse tmpac�s to fcde�ul spec�es of conce�n s� w �� ,� � ' If your pto�ect contalns su�table habxtat for any of the federaily iisted specics known to be ptes�nt withzn the county wheie your pro�ect occurs tlle proposed actton has the potenfial to adversely zffect thosc species As such,we recommend that surveys be conducted io determ�ne the spcc�es presence oi absence with�ti the pio,�ect area The use of North Carolina Ndtu�al �-leiit tge progeam d�ta should not be subst�tuted for actual field su�veys If you determuie that the pi oposed action may affect(i e lrkely to adversely af�eet ot not likely tn adversely�ffect)a#ederally protected spec�es you shnuld not�fy th�s office w�tk�your determ�natjon the results of yaui sur��eys survey methodologies and an analys�s of the effects of the actian vn I►sted spec�es tncivding consideiation of d�rect,�ndirect and cumulatave effects befo�e conducting any achvtties that m�ght affect thc speeies If you determine fhat the proposcd act�an w�ll h�ve no effect(�e,no benefie�ai or adverse d�reet or mdirect effect)on fedetally l�sted spec�es, then you a�e not rcRtuied to contaet our oflice for coneunence(unless an hnv�zonmental Impact Statement �s p�epared) However you should mamta�n a complete reca►d of the assessment �ncludmg st�ps Icad�nb to yaur detei minataon of effect,the quaht�ed personnel condticttng the assessnient, habitai cond�t�ons, ti�te�hoTographs and any other ielated articles With iegltd to the above referenced pro�ect we offer the fotlo�vmg remarks Our comments are submitted�urszrant to,and in accordance with prov�sions of the Endangered Species Act Based on the tnformation provided and otl�er informat�on available �t appears that the pro�oscd �ct�on�s not l�kely to adversely affect any federally l�sted endingered or threatened spec�es, the.ii foinially des�gnated cr�t�cal h�bit�t,o► spectes currently proposed for(isting under the Act at tl�ese sites We bel�eve that the�cqutrements of sect�on 7{a){2)of the Act have been sat�s�ed foi youi pro�ect Please remember that obl�gations unde� sectso�i 7 consultataon must be seconstdered if (1)new anforniat�on�eveals�mpacts of thas iclentified achon that may affect listed spec�es or critical hab►tat in a manner not prev�ously cons,deied,(2}t}us act�on �s subseqt�ently mod�6ed in a manner thlt was not considered m this review,or,(3)a new species is Lsted or critical habrtat derernuned that may be affected by the�denhfied actton However, the Service�s canc,erned about the potential �mpacts the proposed act�on mtght have on aquat�c species Aquatic resources are h�ghly susceptable to sedimentation Therefore,we iecommend that all pract�cable measures be taken to avoid adverse impacts to aquatic spec�es' including implemenftng directtonai boring methods and str�ngent sed�ment and erosion control nieasures An�ros�on�nd sed�menwtion control plan shouid be subindted to and appiov�d by the North Carol�na D�vis�on of Land Resources Land Quali�y Section prioi to canstruc.tian Crosion and sedtmentation controls should be�nstalled and ma�nta�ned between ihe coastniction s�te and any neart�y down gradient surflce waters In nddition,we recommend ma�ntaimng natural vegetated buffers on all str�,ams and creeks ad�acent to the pro�ect s�te The North Carolina Wildl�fe ltesources Commissian llas develop�d a Gutdance Memorandum(a copy can be found on oui website at(htlp//www fws govJralei�l�)to address and matigate s�condary and cumulative impaets to�quatic and terrestr�al wildi�fe iesaurces and water yual�ty We recommend that yot►consider th�s dociunent in the 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