The URL can be used to link to this page

Home My WebLink About20190288 Ver 1_401 Application_20190226CLearWater--)��a�� C1earWater Environmental Consultants, Inc. February 21, 2018 www cwenv com PAID AID Ms. Amanda Jones Ms. Karen Higgins US Army Corps of Engineers NC DWR, 401 & Buffer Permitting Unit Asheville Regulatory Field Office 512 N. Salisbury Street, 9' Floor 151 Patton Avenue, Room 208 Raleigh, North Carolina 27604 Asheville, North Carolina 28801-2638 Subject: Request to Modify Corps 404 Permit Buckeye Reservoir, Town of Beech Mountain Watauga & Avery Counties, North Carolina` I� USACE Action ID SAWC084-N-095-0319 Dear Ms. Jones and Ms. Higgins, Please find this letter requesting a Permit Modification of the subject permit issued on November 28, 1984 (Appendix A) for the Town of Beech Mountain's Buckeye Lake and water supply reservoir. The 1984 Notice of Authorization approved the construction of the Buckeye Lake by installing a dam and fill material. The permit also requires special conditions to maintain permit compliance and includes the two following conditions: a. A minimum flow release of 1.5 to 1.6 cubic feet per second will be maintained at all times. b. During the months of October through December of every year a minimum flow release of 2.8 cubic feet per second will be maintained at the base of the dam to ensure adequate flows for the reproduction of brook trout. The Town has since been unable to maintain these outflow levels due to several reasons including, Buckeye creek inflow, Town water supply needs, Town water system losses, and drought conditions (Appendix B). Future permitting will be pursued if required for an alternative water supply. The permittee requests to modify the 1984 Permit conditions regarding dam outflow levels as listed below to account for variable flow conditions on Buckeye Creek. The permit conditions will be based on Low -Flow and High -Flow conditions of Buckeye Creek upstream of the reservoir. Low -flow conditions of the stream are defined as flow that is less than 1.0 cubic feet per second (cfs). High-flow conditions are defined as flow that is more than 1.0 cfs. The Low -Flow value of 1.0 cfs represents the estimated 7Q10 discharge entering the lake based on a published USGS regression equation for estimating flows in ungauged streams. This information is documented in the attached 32 Clayton striings Environmental Hydrologic Study dated November 12, 2018 (Appendix Q. Asheville, NC 28801 828-698-9800 Tel The applicant requests that Special Conditions A of the permit state: 1. Inflow to the reservoir will be continuously measured using a stream flow gauge station upstream of the reservoir. 2. During Low -Flow conditions, stream flow downstream of the reservoir will be maintained to match inflow by adjusting the outflow gate valve. 3. During High -Flow conditions, stream flow downstream of the reservoir will be maintained at 1.0 cfs or higher. Permit modification conditions may include: 1. Install and maintain two recording streamflow gauge stations, one upstream and one downstream of the reservoir (Appendix D). • The downstream location was installed December 18, 2018. <httys://waterdata.usgg.gov/nwisW. no=0347927164> • The upstream location was installed February 5, 2019. <httt)s://waterdata.usgss.gov/nwis/uv?site no=0347927162> 2. Upfit the dam gate and valve with a mechanized valve and gate (Appendix E). It should be noted that flow in excess of the 7QI0 will be stored for drinking water supply in the reservoir. Once the reservoir is at capacity, outflow will match inflow by adjusting the dam gate valve or releasing water over the spillway. After at least three years of hydrologic data collection using the above-mentioned gauge stations, the 7Q10 flow requirement may be modified based on measured flow data. The applicant respectfully requests that the 1984 Permit be modified to reflect the above changes. Should you have any questions or comments concerning this project please do not hesitate to contact me at 828-698-9800. Sincerely, Anna Priest, P.W.S. Environmental Scientist R. ClementC�WW.. Principal Appendices: A: USACE Permit - November 28,1984 B: NC Division of Water Resources Report — February 1, 2016 C: Jennings Environmental Hydrologic Study - November 12, 2018 D: Photos of USGS Installed Gauge Stations E: West Consultants Buckeye Lake Drain Gate Repair Plans -- February 2019 cc: US Fish and Wildlife Service — Byron Hamstead NC Wildlife Resources Commission — Andrea Leslie NC Division of Wildlife Resources — Sue Homewood CLearWaLer Department of the Army Wilmington District, Corps of Engineers Attn: Scott McLendon, Chief Regulatory Division PO Box 1890 Wilmington, NC 28402-1890 -and- NC DWR, Webscape Unit Attn: Karen Higgins 512 North Salisbury Street Raleigh, North Carolina 27604 I, the current landowner/managing partner of the property identified below, hereby authorize C1earWater Environmental Consultants, Inc. (CEC) to act on my behalf as my agent during the processing of jurisdictional determination requests and permits to impact Wetlands and Water of the US subject to Federal jurisdiction under Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act of 1899. CEC is authorized to provide supplemental information as needed at the request of the USACE or DWR. Additionally, I authorize representatives of the Wilmington District, US Army Corps of Engineers to enter upon the property herein described for the purposes of conducting onsite investigations and issuing a determination associated with Wetlands and Waters of the US subject to Federal jurisdiction under Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act of 1899. Property Owner of Record: � w f Property Owner Address: Phone Number: Email address: ? ��T / l Property Location: Owner/Managing partner Signature: Owner/Managing printed name: Date: 32 Clayton Street Asheville, NC 28801 Phone: 828-698-9800 www.cwenv.com I Buckeye Lake t^v"j .J� . - hN L 4�" hi 184 Bout . -11mimr. 0 2,500 5,000 10'000 INE IN Feed Drawn by. APP 12 17 18, CEC Prcjgct# D95 Avery & Watauga County, G-earWar Vicinity Map North Carolina 32 Clayton Street Figure 1 Asheville. North Carolina 28801 n der lip 4 1 I%L ft, jpA Ad .1 -V— ,no Buckeye Lake Adjoining Property Owners Avery and Watauga Counties, North Carolina Buckeye Lake OWNER NAME __ MAILING ADDRESS _;CITY STATE BEECH _MOUNTAIN_, TOWN OF 403 BEECH MTN PKWY 'BEECH MOUNTAIN NC BEECH MOUNTAIN, TOWN OF i 403 BEECH MTN PKWY BEECH MOUNTAIN NC BEECH M_TN SANITARY_ DISTRICT ' PO BO_X 3_16_ (BANNER ELK i— NC BEECH MOUNTAIN TOWN OF 403 BEECH MOUNTAIN PARKWAY (BANNER ELK_ NC TOWN O_F BEEC_H M_OU_NTAIN_ 403 BEECH MOUNTAIN PKWY__ BEECH MOUNTAININC BEECH MOUNTAIN TOWN OF 14 — 1403 BEECH MOUNTAIN PARKWAY��BANNER ELK ` �NC ZIP _ _ PARCEL NO. _ 28604 1941-17-1093-26 2860_4 1941-17-_2017-27_ _ _28604 1941-17-2115-20 28604_8012 19_41-21-7249-000 _ _ 28604 1941-20-0212-000 28604-8012 1941-20-8984-000 COUNTY Avery tauga Appendix A USACE PERMIT November 28,1984 DOvaber 3 a j 1964 Iftuletory kaiak ausaaar' Fila No, WJIMM--01PS4319 Mr. Fred p ChaLzsm 3se0b 'bmtein 8aaitary District Post Offies an 316 Down Elk, Ifwk Carolina 2W4 Dow Mr. Pfohl, 14 aesordaeee with the written mpast of July 11, 19548 asd the eaauiap aialAistra bs reoard, easlosed is a pecan to emstract a daw to Plus ill, "aerial rias 1yys pffaek at Snob ,Yawintain 8awsp wth o! try aop Cssatiea, Dsrth • Oawet in*. 1f any ahaage in the wthorLud work Le required bssswws of aaforeeeen or altered 000ditiaw or par sir ether among Pus piing revised to shay the shame wast be Dant Promptly to this effics. Ruch action is upcona ry ra rsw►isad plana out be reviewwd and the poswit Wdified. Hands clae#ully teed Baur permit. The tawrat and speeiai oonditimw as iispwtantTows laiim to o®piy with than oeaditioas earld Penult in a tiolatios of 7adw4 tar, aw"is sipWasat 6eneval so>wiitiau require tbats a. YOU suet aaWtate oanOrwptioa belom Decmbw 61, 1967. b. You oust notify this office is "Tom a to wd�en Pw intend to sossm"S ad owlete Verb. a. You mist alcor repreaentatiaes free thia office to maks pariadfa mita to 70-Waconite m dsssed essess",y to ansate aaac ssoplie With yemip ptow dad aoaditioaa. 'fie enaload Notice of Authosisa Lan# 1916 Foam 49369 out be aeaapiauoudy 4UP14yad pt yew "Wksite. RECEIVED MAR ;:J WU OF YOM ... 1hu�loatiret . 6inoereL��r. - Lkowald Coban 4ugs 61 1"jOARS Uyedr C.j:rkl in jM Wal�aaee A. Denson Oole=t, Corppss of b6i", District DnRi*eer -x� dopy famished aitb copy permit: D#xeatox, etlaatic Haiti" Center matisoal O"As survey. M" AMt OAMe 438 Weat Yank street Norfolk, Vitblaia 23510 cop► luralshed with espy epee Coed b lima{ Office of Coastal xmgexaesat !forth Carolina uperM tt of 11stural ltssonreea a" Community Davelop mat 1!049 office bm 759 Wnbead City Nwth Oetoline •28557 V., S. fish rwd Vildlife service 8a42 Of tie a :enc 23085 JM;Oith• Hopctb Carolina 27611-3039 ut. i 6wW l Meek AQ e O Pr -s �E u.,p ' NttION4 U49109 JImbadaa eery ,Ln Fast Off Lee us 570 Usaforts NOVO Carolina 28316 SO Why Spec Land S plans i Inapeator • WIN UNW-E8/u=l •�ppllauaa No. • d • iisnwolAppfleaMNwoh_Hol "ft gM ta1;9 Dtetrj4t Etfeetivo osto Lvksum Date f!ldkvvmmbio it bftm b w 1807 DEPARTMENT OF THE ARMY PERMIT Warring to writtma regaeet dopa 17 JWJZ Ion fa s pa mmu pea I i Padorm work in or SUSO g aav*b1v watara of tb vahad 8tatm spos tb summaadstion of the Chief of BagFaaara, Pwm"to ffseeisn 10 of this RIMS aces Harbor. Aotof Mard a. IM W UAC 4wk M Dfaebaep a UU aupdm Imo waters of do Unaw BMW span the issuance of a per" gross the 8aorstory of a* A mi' esdag th v t6a t+ W d 10961100111 0nnaant to 8aWn 404 of the Class Wee Act (H U.S. C JU0 I I Transport, dredged m twist far tha puepoaa d dmplw u Into .a.n wales span The Women of a permit from the 8eodW of tis Arsr save j fbrongk t6a Cbiif of Ea�Oaon Pntanant to section IW of tka ltodaa Progoeioo, llaorrab enol 8anetua—,Am&of W7=p ftL nftp.& Q4m 1lt. lead Flobl a Maimpas smock mo ntatit ofti a y ustsus 2rfot offt" Boit 316 Donna uke vetch cawo2sa ft ttoo�'oa16i� to of dot is 8uakge Crook n Basch 11Wifata"s .swat of dao w Uke 1wev aced Vayugp CoWat"11 a 1lfitsf b Cuou" IN aeootdease *its *6 phase anddrawl sueshod ascot. whM an incarperapd is and mads a part m"psrmft po Prow. a'IwlBrwaw6preawwd�aUeliarf�rlionawjal eub�eattotba followlnpmedigeon � ��Gortu o. TtatAll aottviUse identified sad authorized hank; shall be coulmeot with the teems sad conditions of this permit; and that, w alaivRiM not apsdflco iy MdaGWW sad suthoefaad basis shaU OOoetaap a violation of the terata and eonditioaa of this Falb► Qalawhich ay �C�na osh in the r kdlfiation. swpsedan or revocation of this pandit, to whole or in part„ ss est forth prose ant nay consider appropriate, wk@thw a asst" �aperm t bay bans� M tb United &ales Oovsra- pravisudy mod�peaded err eavoked iIt, whole or to ENO FORM 1721. 99P82 WWROFIJUL77980O oLM "„sirs b. Tiet all sotivida sutharind horain shall, it WWey Involve, during their conotrudan at operation. any discharge of pollataate lob wstsn of fhs U"W stater or ossa waters, be at all times consiatebt with applicable water quality standards, ditm 1lmiwfona asdimadards of p dormwos. prohibitions. pretreatment standards and manopment preside" estabud. od pasuut to the Chu Water Act 10 U.S. Q L244 this 114ariae Protudes, itessmob and Seaetuarin Act of IM M& OR-W& 86"L lam or puraaeat to applicable state ad decal low. a. That when the acdvUy authorized herein Involves a discharge dumas Its construction or opersties. er my pollutant 001Miuprn6pd or AN UstaWl, tato waters of the linked steam the authorised &Wvity shall. lt eppllesble waw qualky stew dards nes revised or amdifled during the term of this permit, he modifie& it aseeasary, to cmk m with such revised or mocIUM motor quaff Amdards wkhia p months of the dfsdive dela of soy revislss or modifbatlen of water quedw stawkws. or a dW ded by u Implowentatim plan Contained In such nwhed or modified standards. or within scab Waller period of dms am the DirkM llaplaser. In onaltWm Mich this 8eplonal Administrator of the Zhvfra tel PraHotion Amu, may detenralue to bermemsbis ander theokeumemuse. d. That tb iocbarp will sotdeetror a throateaod cr eaduparod epseies se Identified andor the Sadasprod Species Ant. or eadaspNhe a ltkal habitat or sack spseles. a That the paratiwe wenn to make every Meonable effort to promote the condruation or operatdoa of this work soil Ind tends la a amasser so as to mlaImW awy advsrn hapset ON Bob. wdhillle, and Malan! sadrume W valaee. L That du perarWM agrees that he WM prosecute the aouttuedoa or worst andmised herdn is a mussy es er to mialmlu ay. dewdedmet water quality. D Ud the permMn shall dhow the District Reamer er his autthodrad espmeentelive(s) or dedpssspl is mole periodic In- aeoarduca oft tha Meme sad mailgima grow" ha tin, �tba aativlty bolas pertaraed order isatboriq► d We paemtt fa !a L That ibis Versailles shop aniatds the structure er work asthariaed bersiw In peed cmdldon and In reemeable as cmdeaoe wlib the pleas and drawlap auubsd home 1, 'That fhb prank dose not envoy my p WaV rWa.OMW In oW orotate or material, or my snelaatw privilowt and Nut it den at authorlse cosy bjwy to psopesq or Invasion of rftku or say h*bpseewt of FW@rat. Stile. ar ked Iaws or I That this permit does not obviate this requlress" to obtain elate sr local assent required bylaw for the edtvlfpr m9biarle. ad iasis. dL Thai this pwmlt any be elth a oWlib 1, soopoWW or nvakW in obab or is part personal to this polkles and pre- esdomo of As CPIs X6.9, E That m iseaiwp this pamlt, the Goveraaomt has rdkd an the information sed date wbkb the parmldes ba providod in aasedioa whit kis peradt OPOSSUM 14 suboMm at to the laauana of this permit, auh intormstba sad dam prove to be mstedady film maNcislly iaeoyplets or luccurds, tbb permit may be moddfiad, mopuded or rmlr4 is whole or in park aed/erthin tioverassect my, in oddttien.Isatkats appropriate bpd proseedoge. IL That aby modtAgtka, euspsaolon, or rwoeadoa of thio persaltahA not be the beele for say oialm for domaps Asadost tbpeRadStaiu. a That the pwnktes shell soft do Distdkt Sug war se what doe do activity autiortoW bersia wW be coauoand, as far Is adveaes of ** dw of essaxweemrat as the Distslet 8asinssr may opecity. and of any supasim at week, 9 for a period of soon thea ase week, nwmpdos of work wad Its completion. a 7k" it the aiettvdty auWhorind bowie k oot eomplaW m ar before Iri.s.— day et k_ .1Y _ .I&W Yash PONS fife date of kesaapr of WW Swab sakes a0muke ayeept dl this permit, It set previously revoked or spmlflally sounded, shall wtoeaatkaity eocpdrs. la Tial til patsaltdosa sot watheri�s or opprovs tba cobetreetlsa et particaias ntn►etaew, tie sathorl:stloa a approval of Wytch may regodrs suthorlsatioa by the Coaprns or other s;maiee of the Federal Qoveruwat. INE. q. That fi and when do permltWe dealm b ebandu the activity setiorhad her" unless such absadownest Is part of s tes ester Wocsdare by wllcb the permittee Is transferring his Intereate herein to a third party poraaut to General Quill" t horsd, be must notion she area tos, oobdltioa saW facksy b the Dletrkt Jnr. r. That U the recorAq of"persaft in possible, under applicable Sim or local low, the perodues shod take sub adiab AN MY his aen007 to record this psrmk with do Resister of Doods or other appropriate of&W duupd with the reepossiblUq far mabitdaies rscoede of dde to and Interests la nal propety. a. That thus shall be ao mtraeaoaable fgfafaeoa whh aaviptloa by ON esietem or M of tss AdMtY Authorised berde} t That this P mB may amt be ftuterred to a third pArty wkbmg prior wrioeo modes to the Diewid BoEJaaer, altier by the traosbwae's wd" WQIMI at to eompty with AU tame and cosidtiloas of 64 p=19 or by the trasafares subeerhing to thll Won in the epees provided blew, and tbasby apeabg to comply wdtb all IMM sad COB"= of this permit h addb Neo d dw peroi 11 bRush sib bkrnts aatharimd bards by eoavgesee of vmky, the dad nbeB rafeaaee this permit cud tie tams amd asadiuoae apsWW benia Aad this psrmlt @WM bo raaorded dog with the and wkh the 8eatsbr of Dsade or ante apprepeby offidal >L That u the pamkha dtut proeeeWM of du work aathedzed basis. eaoowtlaa a pmvioauifr added W a. absoloslaf ar otbu c kwd nsaeme w 4bla the area robjwA to Mpetanat of the Any► jurWfodan dun misbt be dlpibb for Ifettaj in the Nsdooal NegMa sf AMMrk plass, bo"imoediatoly welty the dlstdet vaguer. Q. �ao1N Ca1d1� loin (Nae't.e Nowdem "bit tpespferlq, is at PVWW M"Ouver MA "thetiMd by dupwoft a. A uiaiauu flow release of 1.5 to 1.6, cubic feet per second will be mistained at 411 tiros esaept as noted is condition No. 2 at the base of the dna. b. Dusirag the uooths of October through December of every yeas a siuimtrra flaw release of 2.8 cubic feet per second will be uaiststud at the base of the dote to erasure adequate flown for the reproduction of brook trost. e. Provisions will be made to eaeure tbst all flows released from the dm an of appropriate twperaturs and oxnan levels to not violate State rates quality attaadasde for trout raters. d. Fish that are trapped in stream pools by construction activities will be relocated to a flowiag atresm to prevent mortalities. a. All concrete pours will be "dry poarsu such that no live concrete comes 14 Contact with the flowing stream. !* strict erosion control measures Will be employed during and after coogtruet400 to.ainimike,siltati" is $uckeye Creek to, the etasimu4t � g. All borrow material will cons from sat upland source. b. Turbidity levels in bvckays Creek will not be iacreased by more than -So M,8 as a result of the authorised agtivity atter a reasonable opportunity for dilation sed mixture. 8 The MOWN 8pntd faosdtdoss wW be appllable when appropriate: tingc11M IN OR ARKnoM HAvmuff WATon of TME umm sTATa w. lhAd ds parmli doe not oodmime the istschrraos wleh any a bdnp ar lIre sed Federal projeat sad dist the prmitee shall act be mmUW to osnyseost4n dor dames or Injury to do etrsotuaa a work sathmind demo which may be caused by or vault dam odabg a ft*m m operation nodoruAm by the Uatad Bbbe Is des p MW Iataest IL 'l'wt to awmpt shag be mods by iia poodges to pervutl the toll cad Imo dao by the pablb of all aavk "waters at or v4ssestts dna ndvlty aaibalsed by dhb permit 9. %ai It d w dbpisy of IVA sed sipols on any structure or +tort susboripd bards b eat admwla pmvMW far by kw, such 1*0 sad dpasle a mad► bo proscribed by an United Own Coat Guard skaU be Isstdled sad mak4lned by mod at the oxpsan of We psradums. d. Us the pwalttaor vM r slpt of a sodas of rrvoosilm of this permit or opoa tta apiratbo balsa oomploft of do solhodsrd dna tam or work, obA wkbsat apneas in tie Uaftad Stags sad Is sash time and meaner as lbs Sseretiry of thu Army er bit o 4sclaed reprseestadve mer dk"% reatom the wabeway to iia toemar coadidom U the p umlgas falls to ower ti ply with abs direction of lbe Ssarwry, of Um Amy ar hb sulbo&W rgpvmsbdv% du Socrssary or his dedpu many rostme ' tics wabrwa y to lle brmarposdlttem by 011111e90 or otbuewb9, aid ewesvar ebf nal thereof h m the Pmkb 9. .y ' A 84mames for Bm;li Raw lug peralmo balky iaoopniae da padb ft dime the etraapm porsisad heels may be add"" *map by wws yah ken pasft v="IL Tbs boasaa of"pmk dose cot mini da pumm" drab taktug an prupsr stupe to bsora the hAmpfty at the wustuo paratNisd hurls aadlhe Balmy of bow moaned thceoto kom domes b wave waived d o punMes shag sot bold tie Uedbd 8tw9lbble for soy asah do nstp KKKRXKNXX DIit91AEQEi OF Ot#ISOt#p OR f ILl /iAT�AL fNTO wATOi OF 11th IN�81ip fTA7Bt ' ' ' ' a. lbodo dkWmp wig be earbd out Is omfim W with the polo and obJeetivpo of lbs SPA GuMdba oombbobod Par- sum awsnarl in 8ostlsm 401lbl of do Cion Nater Act sod pablisbed in 40 CpR Wol b. Ttiat lis dbabarp rylll amasbt ajeatltabv ssatseial deo rem t.;ia polbtasts Iei to}k amsspb. a ?bei do Illi mossad by do diadtsrp wM be property mdoWsod to pr~ stosba and outer me"Wo soarers of pNlar Wer 011WI MLOPOINDIIdrMATMIALMOCKMINATMt e4 That do dbpoesl wW be carded est lo'embro ft with the pals. objadva, and requizonals of the EPA sharia sgabg"panasat a 8901308 lm of do Manua Prebc*A, Ruaaeb and ftedso a Ad of 1891, powlshod b 40 CtR RM SK b. Ad the porsoWn mW pbcs a copy of /btu psmlt Is a cosepkwus pia b the wsool to be used for lbs fssnap ulatiss aad/oe+dMpad at the dnd8sdmagdeil a aMborissd herds.. ,, ... + , , ThIm pormilahaf! h!opme eBicdveoa the deb of the Dratria>j ~& dpahu& Paemltthe}9eaby csmpty rrkb ti9;sems gad asdidoss of thb p9rmiL nzo non, lifiUl AI{f '80ITARY P107RICT r TE 8v AY1NONfv Fro MCiEM I' VIE AWAVo n �4 times PIS' WAYNE A. HAWN, COLONftt, Cx6e if Eae oAn Dommlilf kim '- , rostrxt En;japr "AWIT*COWS O/ VON= TrudembosslWagrm to ="Iy with do toms and conditions d dhb pun$• TRAMVEAEE 4 DATE GRA85•�... C,aP a su.d IL w;Q +� ar-T • �� s + 1. VPNITY : MAP*: X1000 I , r- dt '�1p�:1 : "dF'GCl•� MO�iw1`c'o.t�J • MeA" µ►c+4 %4wram d .' 1 �"jewcaildtsA-f W WC01R. • n j111-04 • S 4�l.$ ' N1a �� •� G•;f h o�ra �J-{`i - APRRow. aSo�o :COU' exu•VAT av i�Row~ PL&%n ba-re Akio �, / �ye� �-1 � coo" 5089") 5085") dseas t.s L,vAlL S eft.,, ( Awa P1-"ILIP 1 • a 4 e t L.L. ". 4 SURFOX0 A1O aP•��j 1P-F�oP , oo:, ~••orae 1p, 00 P'QoPabao C,o+.LGRiTIR. • �� •• � • .AOp2ox. 5bS c..� APDRaK, %-10 c.y. coNcaA�Te., IP<.�sa�o •IrJ :'tipu.�:vyo� . R�1xQa0 PuacAp • • - QtZ0PEQ-r-j o1F - 4� 5h10wv _ p +ea plea woo �____ •" Tows at~ �P_G1.1 t.noo..tYa►+a •• � ... .� ... ... , suwveyto NY DAVIS - MARTIN - POWELL A; ASSOC., INC. ENGINEERING 4 LAND SURVEYING MIGH'POINT. MONTH CAROLINA •D&VCJyVq & .SCAL.r(l1�JOB No.E6 SUiWCVCD rL.ATTSD OV F•; • I ft•Yr/ IV ftp � Re�geR�otR;. 046v-,1'4 SPILL LAa-f .. ZUcAwYr' G9tfte1 vo W&T4uwa 4 aveal cout-AT1e5 D�I••I` MPu+Jret*J °`.+a►�ttTe�►��{, PL`aiR.1G1' 0.0� PJCK 31ta Jut,. �4,198a SN��Y 1 of 2 f, 'r ' �O wlGf$Ii.TOL i . 9090bcO ",Tw i STOOC(Ua e. POR.. • : Co u.1 P1.16t1t CUT. " w pip d RSP+ •Tom: �p0 00" ' AP PROX7 pop e:1C a e � • 40ECTI0A. .9zogQ*fto.. Pam ...: cawuaes•ce. ' suwvsv:o By .. .`RetiS�R,�atR �: DQ► :5Pit_LWA,�( DAVIS • MARTIN • POWELL & ASSOC., INC. � ENo1N99RtNa Ol LAND suRVCYtNo Wo'i6.0 G4 4 Avea*I . cou to n * 5 X19*1"PO1NT. 140 RTK CA 190 LIN A NoQTN 04OL00144 DATE ..HWMOU►.tTiDlwj �JGhll'fd�Z� OI',,iRl�'t' i 166 ICAl.c 11'40' jam No. P.D. lba4".3t(p-- •,..: . iVAV[YiO r�ATYco cr ►� - ..�lw� SW. IR.L.1C1 1 JUL,( lc oci 84. 51-fta"r' S. of 2 f 0 41X0+10.4 1 1 9 Appendix B NC DIVISION OF WATER RESOURCES REPORT February 1, 2016 Environmental Quality February 1, 2016 Attn: E. Rick Miller, Mayor Town of Beech Mountain 403 Beech Mountain Pkwy Beech Mountain, NC 28804 Re: Buckeye Creek Reservoir Required Minimum Release Reevaluation Mayor Rick Owen, PAT MCCRORY DONALD R. VAN DER VAART Sema, Below is a proposal for the Town of Beech Mountain regarding the formal request to Jay Zimmerman, Division of Water Resources Director, dated Dec. 7, 2015, requesting a reevaluation of the required minimum releases for the Buckeye Creek Reservoir. Buckeye Creek Reservoir is the current primary water source for the Town of Beech Mountain. Discussions with regulatory agencies are currently underway regarding a potential intake on the Watauga River, which would provide a supplementary water source for the town when Buckeye Creek Reservoir is low. A reevaluation of the required minimum releases Is being discussed at this time because of this related supplementary water supply proposal from the Watauga River. If acceptable, this proposal, as presented in Tables 2a and 2b, would be included as a condition in the subsequent Clean Water Act Permit, per Sections 404 and 401, for the proposed supplemental Watauga River intake. The proposed changes to the minimum release requirements are based upon the assumption that any supplemental water will be released into the existing Buckeye Creek Reservoir. Table 1 details the current minimum release requirements, Table 3 provides information from the Town of Beech Mountain's Water Shortage Response Plan (WSRP), and Table 4 discusses available water supply at various stages. Table 1. Current Minimum Release Requirements per Section 404 permit for construction of the dam. (Mean Annual Flow (MAF)) CFS Tier Flow Stat. (assume MAF=7.0) 1 (Oct. — Dec.) 40% MAF 2.8 1 (Jan. —Sep.) 20% MAF 1.4 "'O Nothing Compares',, State ofNoith(..(4im F. allAadhy I¢(11MJiilS.tvk(.(rn;ai i FLA*jI No Af.+bu).ltr)!-1hOi 919 ?117 t( j Tables 2a and 2b. Proposed Draft Minimum Release Requirements. an ary 1—Aoril 15 Tier Flow Statistic CFS (assume Triggers = existing WSRP 1 20% MAF MAF --7.0) 0&1 2 15% MAF 1.0 "es 1 40% MAF 2.8 0&1 2 20% MAF 1.4 2&3 3 10% MAF 0.7 4&5 April_1.6 — December 31 Tier How Statistic CFS (assume MAF --7.0) Triggers = existing WSRP stages 1 20% MAF 1.4 0&1 2 15% MAF 1.0 2&3 3 10% MAF 0.7 4&S Table 3. Existing WSRP staees and asseuiatpd trioaare WSRP Stage Trigger Primary Action 0 Water surface at top of spillway, 1 but no longer flowing over (ele. Voluntary 3428 amsl). Restrictions 2 Water surface 4.0 feet below Mandatory spillway Restrictions (10% reductions) 3 Water surface 6.5 feet below Mandatory spillway (top of upper intake) Restrictions (20% reductions) 4 Water surface 13.5 feet below Emergency spillway p way (top of middle intake) Restrictions (25% reductions) 5 Water surface 23.5 feet below spillway (top of lower intake) Water Rationing Table 4. Percentage of available water suuDly at the WSRP stases elevation notes WSRP stages available water supply (mgal) % storage 3440 top of dam 3428 weir crest Stage 1 36.647 100% 3424 4 ft below weir Stage 2 26.688 73% 3421.5 invert - first Intake Stage 3 22.159 60% 3414.5 Invert - second intake Stage 4 11.275 31% 3404.5 1 invert -third Intake Stage 5 0 0% Please contact Harold Brady (harold.m.bradliftov or 919-7079005) If you have any questions regarding the above described minimum release proposal or would like to discuss the next steps in the proposed water supply project. Thank you, JJZJrrmnman Director, Division of Water Resources cc; Lee Spencer Robert Heaton, Town of Beech Mountain Jes Scott, Town of Beech Mountain Benjl Thomas, West Consultants Lori Beckwith, USACE - Asheville Field Office Tasha Alexander, USACE —Asheville Field Office Amanda Bowen, TVA Anthony Summitt, TVA Linwood Peele, DWR Dennis Ramsey, DWR Tom Fransen, DWR Fred Tarver, DWR Chris Goudreau, NCWRC Andrea Leslie, NCWRC Vann Stanch, NCWRC Appendix C JENNINGS ENVIRONMENTAL HYDROLOGIC STUDY November 12, 2018 7 Samuel Ashe Drive Asheville, NC 28805 greg@jenningsenv.com Buckeye Creek Hydrologic Study for Town of Beech Mountain, NC Prepared for: West Consultants, PLLC c/o Benjie Thomas, PE 405 S. Sterling Street, Morganton NC 28655 828-413-4428 bthomas@west-consultants.com Prepared by: Jennings Environmental LLC Gregory D. Jennings, PhD, PE 7 Samuel Ashe Drive, Asheville, NC 28805 919-600-4790 greg@jenningsenv.com Date: November 12, 2018 This Report documents findings of a hydrologic study to support a requested change in permitted minimum discharge rates for Buckeye Lake in the Town of Beech Mountain, NC. The location of the creek upstream of the lake is Lat, Lon: 36.21748, -81.90812. Project objectives are to document hydrology, geomorphology, and ecology conditions downstream of the Town's water supply reservoir to establish a basis for permitting allowable minimum flow rates in the creek. Project results will be used in communications with permitting agencies and Town representatives to establish reasonable permit requirements. TASK 1: Stream Condition Assessment The stream was visited on August 1, 2018, and on September 19, 2018, to evaluate stream channel geomorphology and ecology conditions upstream and downstream of Buckeye Lake. Flow conditions in Buckeye Creek upstream of the lake on August 1, 2018, were very low and estimated to be less than 1.0 cfs. Flow conditions on September 19, 2018, following heavy rains were estimated to be greater than 20 cfs. Attached photos document the flow conditions observed during these site visits. Table 1 summarizes observations during the site visits and also hydrology information obtained from USGS StreamStats(https://streamstats.usgs.gov/ss/). Low -flow predictions listed in Table 1 were calculated using USGS regression equations published in the 1993 USGS Water Supply Paper 2403, Low - flow characteristics of streams in North Carolina (https://pubs.usss.gov/wsp/2403/report.pdf). An image of Table 3 from that document is pasted below for reference. Buckeye Creek Hydrologic Study, Town of Beech Mountain, NC Table 1. Buckeye Creek Geomorphology and Ecology Conditions. Parameter Buckeye Creek Upstream of Lake Buckeye Creek Downstream of Lake Buckeye Creek Downstream of Confluence with Grassy Gap Creek Drainage Area (sq mi) 3.16 3.42 4.40 Channel Width (ft) 14 to 21 16 to 26 18 to 28 Channel Depth (ft) 1.5 to 3.5 2.5 to 6.0 2.2 to 3.5 Channel Slope (ft/ft) 0.02 to 0.03 0.03 to 0.07 0.02 to 0.05 Channel Substrate Gravel/Cobble Bedrock/Gravel Gravel/Cobble Sinuosity (ft/ft) 1.1 to 1.2 1.0 to 1.1 1.1 to 1.2 Rosgen Classification Cab B1 Ob Bankfull Velocity Estimate (ft/s) 4 to 6 6 to 9 5 to 7 Pool Depth from Water Surface (ft) 0.5 to 1.2 0.5 to 1.5 0.5 to 1.2 Pool Length (% of Reach) 30 to 50 20 to 40 30 to 60 Step Height (ft) 0.5 to 1.5 0.5 to 8 0.5 to 1.5 Flow Estimates using USGS Regression Equations Mean Annual Flow, MAF (cfs) 6.32 6.84 8.80 10% MAF (cfs) 0.63 0.68 0.88 20% MAF (cfs) 1.26 1.36 1.76 40% MAF (cfs) 2.52 2.72 3.52 7Q10 (cfs) ^ 1.00 1.08 1.39 W7Q10 (cfs) ^ 1.56 1.69 2.17 7Q2 (cfs) ^ 1.78 1.92 2.47 30Q2 (cfs) ^ 2.17 2.35 3.03 MAF estimated using a factor of 2.0 cfs/sq mi. ^ Low -flow rates estimated using USGS regressions equations shown below. Jennings Enviromnental LLC www.jenningsenv.com greg@jenningsenv.com Buckeye Creek Hydrologic Study, Town of Beech Mountain, NC Regression equations published in 1993 USGS Water Supply Paper 2403, Low -flow characteristics of streams In North Carolina (https://pubs.uses.gov/wsp/2403/report.pdf). Table 3. Low -flow frequency regresw on equations for seletUd hydrologic areas' i^QM flow. the miramum +i -consecutive -day dra#uge, in cubic feet per second. with a probability of 1/m of occurring m any o� clunwc Year, W7Q10 [low takes 1� aocolmt only the months or November through Mach R', cOerrlC1er11 of deu mmatma. DA, dramap aces cn squaw nules, MAF, mean annual flow m cubic feel per aecond] Nrdrologic area Number gptwslon tequ lmSM a, g of tsstbtrtata roma ane nusrtbar of arras for nQM flow (Pae"tf)numbbwer Sand Hills (HA3) 24 7Q10=0 431DA 0 n 086 55 3 W7Q10=0 789DA 090 94 34 4 7Q2-0 655DA 091 93 37 5 30Q2-0 830DA a 91 95 3I 6 Raleigh and Chartme 60 7Q10-0 196DA 0 ss 35 92 7 and Milton Belts W7Q10-0 270DA 0 79 67 65 8 (HAA and HA9, 7Q2=0 253DA O 7' 69 61 9 combated) 30Q2=0 316DA e u 78 49 10 Western Pmdmont 299 7Q10=0 155MAF' o' 87 so 11 and mountains W71Q10-0 252MAF 0 99 90 40 12 (HA10) 7Q2=0 281MAF' O0 92 37 13 3]Q2-0 344MAF 1 O0 93 33 14 'See table 2 for drainage arca limas below which indicated )ow -flow statistics arc generally zero Equations should not be used for drainage areas lest than these limits or for drunage areas greater than 400 square nolo Number or sites may differ alightly from those shown to table 2 because sites with zero values for flow characteristics were not used to develop regression cqunimns In summary, the upstream reach of Buckeye Creek has typical geomorphology and ecology conditions expected for the drainage area and watershed conditions. The downstream reach of Buckeye Creek for 1,000 linear feet is typical of a sediment -starved stream reach located downstream of a dam. The channel is incised down to bedrock for the most part and contains many large vertical drops. The estimated velocities in this reach during high flows are very high due to channel dimensions, slope, and roughness. After the confluence with Grassy Gap Creek, the conditions of Buckeye Creek are more typical of those found upstream of the lake. The low -flow estimates from USGS regression equations predict a 7Q10 of approximately 1.0 cfs upstream of the lake and 1.4 cfs below the confluence 1,000 feet downstream of the dam. This 7Q10 flow rate is less than the regulatory agency recommendation estimated using 20% of mean annual flow (1.4 cfs). The estimated W7Q10 is 1.6 cfs upstream of the lake and 2.2 cfs downstream of the confluence. The Installation of USGS gauging stations upstream and downstream of the lake will provide long-term data to document actual flow conditions. The gauges can also be used to document actual flows during drought conditions so that dam releases can be adjusted to match inflow conditions. During a meeting with regulatory agencies on October 15, 2018, the NC Wildlife Resources Commission stated that a field-based instream flow study is not necessary at this time due to the fact that reproducing brook trout are no longer found downstream of the lake. The wild rainbow trout that exist downstream of the confluence and large bedrock waterfall have different spawning periods from brook trout which are highlighted in the 1984 permit. The NCWRC recommendation is to maintain sufficient reservoir outflow levels to sustain wild rainbow trout year-round, including their seasonal spawning period of January 1 to April 15. Jennings Environmental LLC www.jenninpenv.com greg@jenningsenv.com Buckeye Creek Hydrolq* Study, Town of Beach Mountain, NC 4 Based on field assessments and communications with regulatory agencies, current recommendations are to: 1. Collaborate with USGS to install flow gauging stations upstream and downstream of the lake to document In -stream flows during low flow periods. This information will be valuable for documenting permit compliance and for future adjustments to flow requirements. During extreme low -flow periods, the outflow may be reduced to match upstream Inflow rates. 2. Upgrade the dam release gate to provide rellabie control of flow rates to meet permit conditions. 3. Request permit modifications to provide reasonable downstream flow conditions based on measured low flow data. Respectfully, A.,.n b. �� Gregory D. Jennings, PhD, PE President, Jennings Environmental LLC Jannlnp Environmental LLC www.jenninpenv.com ~jenningsaw.corn Buckeye Creek Hydrologic Study, Town of Beech Mountain, NC Attachment: Photos of Buckeye Creek Buckeye Creek Downstream of Lake, August 1, 2018 5 Buckeye Creek Downstream of Lake, September 19, 2018 Jennings Environmental LLC www.jenningsenv.com greg@jenningsenv.com Buckeye Creek Hydrologic Study, Town of Beech Mountain, NC 6 Buckeye Creek Upstream of lake, August 1, 2018 - r . Buckeye Creek Upstream of Lake, September 19, 2018 Jennings Environmental LLC www.jenninpenw.com greg@)ening m.cotn Appendix D PHOTOS OF USGS INSTALLED GAUGE STATIONS 1 140, 41 t aAA Iry 4, Sk se om- pe 140, 41 t aAA �� .'fes i � � + � {r:t �;� � ..t .�' `�1 " ic��r �•�..+': — Y 7 , $�„/�' f. a' _-�j� fie•` • Appendix E WEST CONSULTANTS BUCKEYE LAKE DRAIN GATE REPAIR PLANS February 2019 ACTUATOR UNDERGROUND ELECTRIC SERVICE AND CONTROL CIRCUIT TO ACTUATOR MOTOR IN CONDUIT. / 41 i / J- X// / JX/ El CENTERLINE OF FENCE X X X } OVERHEAD ELECTRICAL SERVICE TO POWER POLE UE GATE \ \ c \ \ \ \ \ TOWN OF BEECH MOUNTAIN IWATER TREATMENT PLANT ------y x \ \ I\ \ x \ \ x \ x � � I \ x x x x 1 CONCRETE FOUNDATION Io o IO zo NEVE mw OWE I GRAPHIC SCALE - FEET i"=io' QZ IL �a Z_ d J Zw0 ¢�Q Z w U � Q = 0 U a Z w C LL Y z Z50 UJ 0O w 7 U F 7Q m3 SHEET 1 of 2 -w- 6- 1 12- 1 12' 1 6' 4 G e WE D (TYP.) f'0 E 6- LONG CONCRETE ANCHOR BOLTS (TYP) P 72' 66• a p ACTUATOR ROD • (TO BE PROVIDED BY OTHERS) . EXISTING GATE CONNECTION EXISTING G 46' WIDE GATE • G EXISTING GATE CO—NCR—ETE FOUNDATION - SO- MADE v 112• LONG GATE SECTION V= 11A.. am 12' 24' 2P �{ ACTUATOR ROD WELD (TYP.) ^ (TO BE PROVIDED BY OTHERS) SUPPORT BEARING CTYP.) TO BE PROVIDED BY OTHERS SL`' STAINLE -END PLATE SAME AS STEEL ANGLE (TVP.) FOR GUIDE RAIL (TYP.) ACTUATOR BASE SECTION 1" = 1'-0" 304 STAINLESS ANGLE(TYP.) SAME AS FOR GUIDE RAIL Ina O O 3'X3'%1.304 STAINLESS STEEL ANGLE. FIELD WELD TO PLATE ONCE FINAL LENGTH IS DETERMINED. O O END PLATE FOR ACTUATOR BASE 1/2"= V-0" 6"46--304 STAINLESS STEEL PLATE WITH 4 X!- LONG CONCRETE ANCHOR BOLTS (TPJ d EXISTING A CONCRETf, ACTUAZOR' a BASE •--� 1 �- '4 _ . • ACTUATOR MOTOR (BY OTHERS) . . , C ail 6-E6•4•304 STAINLESS STEEL PLATE NOTES: 1. THIS PLAN IS A REPAIR FOR THE BUCKEYE LAKE DRAIN GATE FOR THE TOWN OF BEECH MOUNTAIN. 2 ALL METAL COMPONENTS ARE PROPOSED TO BE 304 STAINLESS STEEL. 3. ALL CONCRETE ANCHORS SHALL USE STAINLESS STEEL FASTENERS. 4. ALL CONNECTING HARDWARE SHALL BE STAINLESS STEEL. 6. THE INTENT OF THIS PLAN IS TO PROVIDE SECTIONS THAT CAN BE PLACED ON THE EXISTING CONCRETE SUPPORT STRUCTURES BY HAND AND THEN BOLTED TOGETHER TO COMPLETE A SUPPORT ASSEMBLY CONTINUOUS FROM THE DRAIN GATE TO THE ACTUATOR BASE. 6. THE ACTUATOR MOTOR AND ROD WILL BE PROVIDED BY OTHERS. THE EXISTING DRAIN GATE IS PROPOSED TO REMAIN. 7. THIS COMPLETED UNIT WILL REQUIRE 1 GATE SECTION, 1 ACTUATOR BASE SECTION, AND 9INTERMEDIATE GUIDE RAIL SECTIONS. 3'.3'%3/1' ACTUATOR ROD PPORT BONING tO E V LONG CONCRETE SU 304 STAINLESS STEEL ANGLE ANCHOR BOLTS (TYP.) (TYP)` (TYP., FIELD LOCATE) 1 24' END PLATES FOR GUIDE RAILS (TYP. FOR EACH END) INTERMEDIATE GUIDE RAIL SECTION 1" = 1'-0" �.( ,• (-O BOLT HOLES 1' 3N3'k3/S- ANGLE WELDED TO PLATE END PLATE DETAIL NTS Fi W ■1wy� gm z a z 0 W O <ma Z W L1' tea= OOd. 2z0 x zz LULU F , Y � zg0 Wa FO Y 7 V F � Q m3 M14*11 2 OF 2 WELD 3Y3'a' 301STAINLESS (TYP) 24L'END STEEL ANGLE(TYP.)( I AIL SSIEEE DDE" f� PLATESLij I �' • - �I (SEE DETAIL WELD trvPi Dy J I ol 2t• EXISTING 2k2' tY (TYP.) CONCRETE PAD ACTUAR (TVP.) ROD ,20' 1 24' END PLATES FOR GUIDE RAILS (TYP. FOR EACH END) INTERMEDIATE GUIDE RAIL SECTION 1" = 1'-0" �.( ,• (-O BOLT HOLES 1' 3N3'k3/S- ANGLE WELDED TO PLATE END PLATE DETAIL NTS Fi W ■1wy� gm z a z 0 W O <ma Z W L1' tea= OOd. 2z0 x zz LULU F , Y � zg0 Wa FO Y 7 V F � Q m3 M14*11 2 OF 2