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HomeMy WebLinkAbout19930331 Ver 1_COMPLETE FILE_19930503SLATE G? ?,3a 5„ v of Z MN 2 1,093) State of North Carolina WArEVQjt ,ry Department of Environment, Health, and Natural Resources 512 North Salisbury Street • Raleigh, North Carolina 27604 James B. Hunt, Jr., Governor October 27, 1993 Jonathan B. Howes, Secretary Dr. G. Wayne Wright Corps of Engineers P. O. Box 1890 Wilmington, NC 28402 Dear Dr. Wright: In keeping with your request, this office has circulated to interested state review agencies U. S. Army Corps of Engineers Public Notice Action ID. 199203603 dated September 23, 1993 which describes a request by the USDA Forest Service to complete the dredging of Lake Powhatan and restoration of a section of Bent Creek, below the dam. The project is located in Pisgah National Forest, Asheville in Buncombe County. During the course of the review, important comments were submitted by four cooperating agencies. At this writing, four agencies, including the Divisions of Health, Archives and History, Land Quality and State Property have yet to respond. Inasmuch as the due date has passed and in an effort to allow the Forest Service to move forward, we offer the following summary of comments for the record: Wildlife Resources Commission - in an October 5 memorandum, provided an indepth review with important recommendations. A copy of this, according to the memorandum, has been provided your Asheville office by the Commis- sion and a copy, is provided herein; Division of Environmental Management - issued the required Section 401 Water Quality Certification on October 1. Certification No. 2855 provides important safeguards and conditions for restoration agreed to in a joint meeting; Division of Water Resources - recommends a continuous minimum flow during the project completion (see attached); Division of Parks & Recreation - cautions about an endangered plant species (see attached). P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-4984 Fax # 919-733-0513 An Equal Opportunity Affirmative Action Employer 50% -yded/10% p,M,-mnau F-Ptr A a.. Dr. G. Wayne Wright Page 2 October 27, 1993 Should you require additional input from the state on this matter, do not hesitate to contact this office or the responding agencies. Very sincerely, Jo R. Parker, Jr. Inland '404 Coordinator JRP: jr/aw cc: Wildlife Resources Commission Division of Environmental Management Parks & Recreation Division of Water Resources COE--Asheville Enclosure ? . .. s State of North Carolina Department of Environment, Health and Natural Resources • • Division of Environmental Management James B. Hunt, Jr., Governor F= Jonathan B. Howes, Secretary ? H N 11 A. Preston Howard; Jr., P.E., Director October 21, 1993 Randle G. Phillips Acting Forest Supervision U.S. Forest Service U.S. Federal Court House Building 100 Otis Street P.O. Box 2750 Asheville, N.C. 28802 Dear Mr. Phillips: Subject: Certification Pursuant to Section 401 of the Federal Clean Water Act, Proposed Lake Powhatan dredging and Bent Creek cleanup Project # 93331, COE # 199203603 Buncombe County Attached hereto is a copy of Certification No. 2855 issued to U.S. Forest Service dated 21 October, 1993. If we can be of further assistance, do not hesitate to contact us. Sincerely, 4 I -reston- owar , Jr. P.E. i ector Attachments cc: Wilmington District Corps of Engineers Corps of Engineers Asheville Field Office Asheville DEM Regional Office Mr. John Dorney John Parker, Division of Coastal Management Central Files P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone 919-733-7015 FAX 919-733-2496 An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post-consumer paper Randle G. Phillips October 21, 1993 Page 2 NORTH CAROLINA Buncombe County CERTIFICATION THIS CERTIFICATION is issued in conformity with the requirements of Section 401 Public Laws 92-500 and 95-217 of the United States and subject to the North Carolina Division of Environmental Management Regulations in 15 NCAC 2H, Section .0500 to N.C. Forest Service in Buncombe County pursuant to an application filed on the 24th day of September,1993 to drain and dredge Lake Powhatan and remove sediment from Bent Creek. The Application provides adequate assurance that the discharge of fill material into the waters of Lake Powhatan in conjunction with the proposed development in Buncombe County will not result in a violation of applicable Water Quality Standards and discharge guidelines. Therefore, the State of North Carolina certifies that this activity will not violate Sections 301, 302, 303, 306, 307 of PL 92-500 and PL 95-217 if conducted in accordance with the application and conditions hereinafter set forth. Condition(s) of Certification: 1. That the activity be conducted in such a manner as.to prevent significant increase in turbidity outside the area of construction or construction related discharge (increases such that the turbidity in the stream is 25 NTU's or less are. not considered significant). 2. U.S. Forest Service shall preform channel restoration work on Bent Creek downstream of Lake Powhatan at specific sites to be selected by DEM. Restoration is to include the removal of sediments from the creek by use of small sized heavy equipment with rubber tires. The equipment should be capable of selectively removing sediments with minimal streambank and natural bottom disturbance. Portable dredge equipment and hand labor (in combination with the above) may also be necessary and are authorized in order to complete the required channel restoration work. 3. Excavated material resulting from the channel restoration to be placed on high ground as far from the bank of the creek as is practical as long as it is not jurisdictional wetlands. The material is then to be spread in an effort establish a thin soil layer that is easily integrated into the surrounding environment. All such areas are to be seeded and mulched as soon as is possible. is to i Randle G Phillips October 21, 1993 Page 3 4. Established instream sediment retention basins (1 at the upstream base of the dam and 3 downstream of the dam) are to be maintained throughout the life of the project and will be cleaned out and left in place following project construction. The basins are to be monitored on no less than a weekly basis and more frequently where storm events may require. All material generated from this maintenance activity is to be placed and retained on high ground well away from waters or wetlands. 5. Before any work begins, the permittee and his contractor will meet onsite with a representative of N.C. Department of Environmental Management to review project conditions and insure overall compliance with this permit. 6. The work authorized herein includes periodic maintenance which may be performed for ten years from the date of this permit provided: a. The permittee will advise Department of Environmental Management in writing at least two weeks before he intends to undertake any maintenance dredging. b. The proposed area to be dredged, method of dredging and disposal of dredged material will be in strict accordance with that authorized by this permit. Violations of any condition herein set forth shall result in revocation of this Certification. This Certification shall become null and void unless the above conditions are made conditions of the Federal or Coastal Area Management Act Permit If this Certification is unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty (30) days following receipt of this Certification. This request must be in the form of a written petition conforming to Chapter 150B of the North Carolina General Statutes and filed with the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 27611-7447. Unless such demands are made, this Certification shall be final and binding. This the 21st day of October, 1993. DIVISION OF ENVIRONMENTAL MANAGEMENT reston Howard, P.E. rector WQC# 2855 State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management P.O. Box 29535 Raleigh, North Carolina 27626-0535 WATER QUALITY SECTION FAX # (919) 733-1338 TELECOPY TO. FAX NUMB FROM: - PHONE-- ' 0 NUMBER OF PAGES, INCLUDING THE COVER SHEET: TRANSMISSION REPORT ( OCT 22 '93 08:01AM ) * * * DATE START REMOTE TERMINAL MODE TIME RESULTS TOTAL DEPT. FILE TIME IDENTIFICATION PAGES CODE NO. * * * OCT 22 07:59AM USDA FOREST SERVICE G3E ST 01'33" OK 04 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management P.O. Box 29535 Raleigh, North Carolina 27626-0535 WATER QUALITY SECTION FAX # (919) 733-1338 TELECOPY TO: FAX 90 qJ _?? r7 L-_ 7 1j FROM: PHONE• V NUMBER OF PAGES, INCLUDING THE COVER SHEET: -1 . w r _ TRANSMISSION REPORT *sk>kW>k%K*>k>k>K>K*>k>ksf:>k>K>kslc>k>k?f:>k>k%F:>k*sk>k>k ( OCT 22 '98 08:20AM ) >k>k>k ?k>K *>k>k>K>K>k 3k>k>K>K>k>k>K>K>K>k>k>K : K: k>k>k>k>K.f: * * ?f: * %k %k * ?i: * * * * %k *>k>K %k *>k>k>k>K * %k: k sk sk>k>k -K * * 3k>K %k * * * %k *>K sk * %K -K %K>k %k>k>k>K sk %K>k %k *>k>k>k>k>k>k >K * >k * DATE START REMOTE TERMINAL MODE * TIME RESULTS TOTAL DEPT. FILE * TIME IDENTIFICATION PAGES CODE NO. * * * * k OCT 22 08:18RM COE-ASHEVILLE GDE ST 01'47" OK 04 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * >K ?k ?F:>K N<>k ?F:>k>F:>k>k>Ic>k>K>K ?f,>k N<>k %k %k * * *,+? * * * ?f. * * * *• ?k>k ?F. * ?k ?:3k: Y. ?k %k>k>k>k>k * :f ?>k>k>K 3k ?Ic>k>F: %K>K>k>k ?k>k>k>k>k>K %k>k>k>k>K>k>k>k>k>k>k: F:>F: %F:>k>k: k>k;K *>k>k>k>k>k>V: IMPORTANT To Date AT> Time WHILE Y7E OUT M of Phone v ? - t 0 ?"f AREA CODE NUMBER EXTENSION TELEPHONED PLEASE CALL Message CK At 1 Cid S? Q. ? t u 5 ? Signed CALLED TO SEE YOU WILL CALL AGAIN WANTS TO SEE YOU URGENT RETURNED YOUR CALL N.C. Dept. of Environment, Health, and Natural Resources 5 Printed on Recycled Paper MEMO DATE: TO: SUBJECT: ,t-5s Q 41 ? eo-v- From: ?.STATfq.A.UC?? M?v 10. y: North Carolina Department of Environment, Health, and Natural Resources ? Printed on Recycled Papei Gunn IMPORTANT To _ Date Time WHILE YOU WERE OUT M of_ _ Phone AREA CODE NUMBER EXTENSION Messaged "''? , "ILI Signed TELEPHONED PLEASE CALL CALLED TO SEE YOU WILL CALL AGAIN WANTS TO SEE YOU URGENT RETURNED YOUR CALL I -I N.C. Dept. of Environment, Health, and Natural Resources MEMO TO: 0t ? 0 DATE: 12 SUBJECT: C c-, ??'?\ (? ?W ?? S ? `7 ' ? ?G C?-z? i Div c, c?vc;,nJ j?tL S L?? P---c?'WT\ ct?rti- ?(? e S! CC), / env?i ?N ? G?K-`,cam ?' ? ? l From: Mc STATE a ?d North Carolina Department of Environment, Health, and Natural Resources . ounn+N?,Y ?? Printed on Recycled Paper OCT 20 '93 09:01 COE-ASHEVILLE . 4 ASHE??LLL LA7OfTi Y A EG& COM-MEWE rsss TELECOPIER COVER SHEET TO: .IOn/ UOR"???j FAX:f--qty 733 133 9 OFFICE: NUMBER OF PAGES INCLUDING COVER SHEET: REFERENCE: r-o,e 1?14,Z-/-) 1?;1?2_631603 P. 114 US ARMY CORPS OF ENGINEERS Regulatory Field Office Rm 75, Grove Arcade Building 37 Battery Park Avenue Asheville, NC 28801-2714 FROM: L?c) 6 ?o>~fn/.???J FAX: (704) 271-4858 PHONE: (704) 271-4854 COMMENTS- ??, {' ?:? ? If D e;? Con/ d. .?-r ? c L?1f ? ? ??'` / D??-? , L??"/? E ? / ,f U .f? F c? ?d?f d GYi ? / i ? aC ?U? i%?./ J GLIv - 44e..vC 0 C - / i.s- /0 Gam- / f, c° 7`/ n/ 4 4-'w L° / r? •??? Go A-' !;?•'l? 14 Please Deliver Immediately PRIORI'T'Y - Please Deliver As Soon As Possible ROUTINE - Please Deliver This Business Day For Your Information v a r..- Idle _r 4-,y & C*V, ?&/ -..-v -(, / N. C. DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES ASHEV'ILLE REGIONAL OFFICE DIVISION OF ENVIRONMENTAL MANAGEMENT WATER QUALITY SECTION TO: FAX #: FROM: U FAX ##: 704/251-6452 DATE: A-) ` 3 # OF PAGES INCLUDING THIS COVER: 6 MESSAGE: _If questions, please call 704/251 TB'd 8S2T222,6TGT6 01 aNH39 0?1 ajitnaysd WOad 8Z:ST S66T-BZ-100 IV State of North Carolina Department of Environment, ffl:.8?FA Health, and Natural Resources / Division of Environmental Management I 6v James B. Hunt, Jr. Governor C Jonathan B. Howes, Secretary F1i Nann Guthrie, Regional Manager Asheville Regional Office WATER QUALITY SECTYON October 20, 1993 MEMORANVU14 TO: John Dorney, Special Projects Supervisor Program Planning Unit THROUGH: Forrest R. Westa Regional Water Qua ervisor FROM: Max L. Haner, Envi nmental Che ist Water Quality Section / ARO SUBJECT: Additional Recommendations 401 Certification of Permit 819 (1993) (Continuation of Permit Number 92395) Sediment Removal from Stream Segment Downstream of Lake Powhatan Dam French Broad River Basin Buncombe County, North Carolina As you are aware, ARO's recommendation for issuance of a 401 Water Quality Certification for this project was conditioned to require removal of sediment material from the 2-3 mile Bent Creek segment between Lake Powhatan and the French Broad River. Sediment material was drained into Bent Creek from Lake Powhatan as result of damage to the gate structure in the dam during preliminary work in accordance with Corp of Engineer (COE) Permit Number 92395 (mechanical dredging of lake). Significant modification to the project caused the COE to request permit reapplication by the USDA Forest Service which when submitted was without reference to sediment removal from the stream segment downstream of the dam. Bent Creek bears a Class "WSIV" classification for this segment with the last 0.4 mile being classified as "WSIV CA" due to the proposed french Broad River intake by the Asheville/Buncombe Water Authority. Even though this stream segment is not protected as trout water by DEM classification, it is managed and recognized as a well-known trout water fishery. Release of sediment material caused violation of the Antidegradation Policy administered by this Division and certain (albeit not measured) violation of turbidity standards assigned to Interchange guiding, 59 woodfin Place, !Asheville, N.C. 28801 Telephone 704/251-6208 Paz 704/251-6254 ZGa*d 822TSSL6 % % Ol INHDG 0?J aIITA`ySH Wo?I BZ:ST S66T-OE-i00 r , . John Dorney Memorandum October 20, 1993 Page Two these waters. Tn addition, I am advised that no erosion control plan was prepared for this activity. A meeting held in this office on Friday, October 15, 1993, to resolve these concerns resulted in agreements between the Forest Service, COE, US Fish & Wildlife, Wildlife Resources Commission and this Department's Division of Land Resources that satisfies ARO's condition for the subject 401 Certification. The list of proposed COE permit conditions outlining these agreements is enclosed herewith and you will note that Conditions 1 & 2 positively address the sediment question in the impacted stream segment.below the dam. Given the merit of each one of these proposed conditions, however, it is recommended that if possible the entire list be referenced as basis for the 401 Water Quality Certification of this project.. Should you have questions, please advise. Enclosure ?7'Gl'A R'7T5°7).FTFTF nl NNH?IQ MI att?naysH WONJ 6Z:ST S66T-0E-100 ANT Date /(./ WHILE YOU WE OUT M of Phone AREA CODE NUMBER EXTENSION TELEPHONED PLEASE CALL CALLED TO SEE YOU WILL CALL AGAIN WANTS TO SEE YOU URGENT RETURNED YOUR CALL Message J Signed N.C. Dept. of Environment, Health, and Natural Resources DZP Printed on Recycled Paper J. r l ® North Carolina Wildlife Resources /b7#rWn-'1s-sbW 512 N. Salisbury Street, Raleigh, North Carolina 27604-1 88, 9-733-3391 9 Charles R. Fullwood, Executive Direct r W' A wArER AS /?OUP ITY??OT,nrV MEMORANDUM TO: John R. Parker, 404 Coordinator Division of Coastal Management FROM: Stephanie E. Goudreau, Mt. Region Coordinator Habitat Conservation Program ORIGINAL SIGN )D Y". DATE: October 5, 1993 STEFR&NIE OU R U SUBJECT: U.S. Army Corps of Engineers Public 199203603, Review of an application National Forest in North Carolina f permit to continue and complete the dredging of Lake Powhatan in Pisgah Bent Creek, Buncombe County. Notice No. by the USDA Dr an after-the-fact lake drawdown and National Forest, The North Carolina Wildlife Resources Commission (NCWRC) has reviewed the information provided by the U.S. Army Corps of Engineers (Corps), and Mr. Micky Clemmons conducted a site visit with Corps and U.S. Forest Service (USFS) personnel on September 14, 1993. These comments are provided in accordance with provisions of the Clean Water Act of 1977 (33 U.S.C. 466 et seq.), and the Fish and Wildlife Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d.). Initially the USFS proposed to drain Lake Powhatan, remove lakebed sediments by trackhoe and improve the beach area by adding sand in order to upgrade recreation facilities at Bent Creek and reduce existing erosion problems. Complications associated with lake drawdown and misunderstandings over what permits were needed resulted in discharges into Lake Powhatan and Bent Creek, as well as the release of hundreds of cubic yards of sediment downstream into the stream channel. Therefore several activities are proposed as either after-the-fact activities or activities needed to correct resulting poor environmental conditions. The applicant proposes to leave or construct 4 sediment traps to catch sediment that was flushed downstream below the dam and additional sediment that may continue to erode from the lakebed. In addition, the applicant proposes to leave a newly Memorandum Page 2 October 5, 1993 constructed equipment pad within the lakebed until the end of the project when the pad will be removed. At that time a new stream channel will be excavated through the lakebed if needed to reduce erosion. Bent Creek and Lake Powhatan are Hatchery Supported Designated Public Mountain Trout Water (DPMTW). Bent Creek offers fair habitat for trout and may support a small wild trout population as well as populations of other fish species. Lake Powhatan can support trout during the colder spring months and supports small populations of other fish species. Both Bent Creek and Lake Powhatan are heavily fished by anglers. The water depth in Lake Powhatan has been greatly reduced due to accumulated sediment and increasing the depth of the lake will improve fisheries habitat. No federal or state listed threatened or endangered species are known to be present at this site. The NCWRC is concerned about adverse impacts to aquatic resources resulting from this project. The NCWRC does not object to the issuance of the permit, provided the following conditions are met by the applicant. Below are general recommendations that should be applied to the entire project and specific recommendations which address each project activity. 1) The USFS should develop a mitigation plan that addresses damage to aquatic habitat in Bent Creek below the dam. Measures may include removal of sediment by suction, removal of sediment using settling basins, revegetation of areas damaged by heavy equipment, and restocking of fish killed by the release of sediment from the dam. We recommend that the USFS develop various options, then meet with the Corps, U.S. Fish and Wildlife Service (USFWS), and NCWRC to discuss the preferred course of action for mitigating damage done to Bent Creek. 2) When the dam is repaired a riser system should be installed that prevents the accumulation of sediment against the release gate. The design should also include a coldwater release. 3) The possibility of installing a trap upstream of the lake that would catch sediment before it enters the lake should be investigated. This structure would allow for the regular removal of the sediment on a smaller scale. 4) This after-the-fact application is an indication of the general confusion that exists among USFS personnel about what activities are permitted by the Corps. This confusion is understandable because many USFS activities are exempt from Section 404 permitting. We recommend that meetings be arranged between the Corps and each Ranger District to Memorandum Page 3 October 5, 1993 clarify when the USFS should obtain 404 permits. Mechanical dredging of lake bottom sediments 5) This action will improve fisheries habitat in the lake and improve angler experiences. -However, removal of sediment should not be done near running water. If sediment removal must be done near the active stream channel, a new stream channel should be excavated, stabilized and the stream moved into it before excavation begins so that water flow of good quality is maintained in Bent Creek downstream of the dam. Construction of a temporary equipment pad 6) Erosion should be controlled by seeding and stabilizing the pad while it is in place. Temporary ground cover (e.g. hardwood mulch, straw, etc.) should be placed on all bare soil. The pad should be removed before the lake is filled, and the lake bank at this site should be revegetated. Permanent vegetation in this area should be established within 15 days of project completion to provide long term erosion control. 7) Waste earthen material should not be placed in any stream, wetland, or below the normal high water mark of the lake, or within the 30-foot riparian zone of any stream. Excavation of deepened stream channel 8) This activity should not be undertaken unless the USFS, Corps, USFWS, and NCWRC determine that the sediment traps are not capable of collecting the sediment being transported downstream. 9) The objective of this action could be realized by dredging a new channel within the lakebed in the area the application indicates will be dredged. When this new channel is stable the active stream could be moved into it. Temporary instream sediment traps 10) Sediment traps appear to be the best option for controlling both sediment that has been flushed out of the lake and additional sediment that continues to erode from the lakebed. These traps should be inspected at least once a week and more often if rainy weather occurs and should be cleaned out when one-half full to maintain their efficiency. 11) If sediment continues to be transported below the lowest basin, additional sediment traps should be constructed and other options should be considered. The applicant should Memorandum Page 4 October 5, 1993 conduct regular inspections of the stream below the lowest trap to determine if sediment is accumulating in this area. Construction of a temporary sediment trap within the lake 12) We support this added protective measure. Placement of sand in public swimming area 13) We do not oppose this activity. Thank you for the opportunity to review and comment on this project. If there are any questions regarding these comments, please contact Mr. Micky Clemmons at 704/452-0422. cc: Mr. Micky Clemmons, District 9 Fisheries Biologist Ms. Janice Nicholls, USFWS, Asheville Mr. John Dorney, DEM Mr. Steve Reed, DWR Mr. David Baker, Corps, Asheville C A Of` i State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management P.O. Box 29535 Raleigh, North Carolina 27626-0535 WATER QUALITY SECTION FAX # (919) 733-1338 TELECOPY TO:_ FAX NUMBER:- FROM:__ ?04 - a51- a63 PHONE: qIJ -733 1-7? NUMBER OF PAGES, INCLUDING THE COVER SHEET: TRANSMISSION REPORT ( OCT 14 '93 12:04PM ) %K>k>K%k-Y•%k>k>k>k>K>K>ksk>k>k%k>k>k>k>k>k>k>k>k>K>k>k>k>k*%k>k>k>k>k>k>K>K>k>k>k>k>k>K>k>k>k>k>k>k>k:K>Kjk>k7k>k>k>k?K>K%Ksk>k>k>k>k>k%k%k>k*.>1:>k>k>k>k>k>K>k>k>k>Y.>F:>K?1:*%k>k%k*>k >k * :k * DATE START REMOTE TERMINAL MODE TIME RESULTS TOTAL DEPT. FILE * TIME IDENTIFICATION PAGES CODE 110. * * * OCT 14 12:01PM USDA FOREST SERVICE GSE ST 02'16" OK 05 * * * h: * .k >k * Nc * * * * >k * * >k * * :K >k * >k * >k * >k * * * * * >k * >k>k>Y. * %k %k jl:>k>k>F:>k>k>k>k>k>k:?k * sk>I:>I:>f: %K>k>k>k>k>k * %k %k>k %k>k *>k * *>k %k: f: %K -k>k>k>k>f:>Y.:k *>k %k sk>k>k>k>F:>k %k>k sk>k *:k>K %k ?k>k>k>k>k %K>k>k>K>k>k *>k>K>k>k>k>k>K>k *;k %k %k>I: %k State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management P.O. Box 29535 Raleigh, North Carolina 27626-0535 WATER QUALITY SECTION FAX # (919) 733-1338 TELECOPY TO: K, FAX NUMBER: FROM:_ PHONE- NUMBER OF PAGES, INCLUDING THE COVER SHEET: y . w TRANSMISSION REPORT ( OCT 14 '93 11:03RII ) * * * * * DATE START REMOTE TERMINAL MODE TIME RESULTS TOTAL DEPT. FILE TIME IDENTIFICATION PAGES CODE NO. * * * * * OCT 14 11:01AN ASHEVILLE RO G3E ST 81'48" OK 85 * * * * * * * * * * * * * * * * * * * * .yc * * * * * * * * * * * * * TY:EAP qIN,, ',"T' m J,.-.hn Do-?~ney Planning Branch SUIBJECT : WETLAND STAFF REPORT AND Y*EAC'.H ITEM MUST BE ANSW PERMIT YR: ? PERMIT N APPLICANT NAME: PISGAH NATIONAL PROJECT TYPE: DREDGE SEDIMENTS COE #: RCD_FROM _CDA: nPP REry_OFFICE: ARO STREAM-CLASS : (,OS l Ird-6 T?,i WL__-IMPACT?: W"L_REQUEti== ,'ED : /UOA).Z WL_S CORE (#) : '70,)-S HYLRO_t'NECT? : ON MITIGATION-TYPE: ?te- Re ?T.e.:?rer :._.?? ??' __ oho AAA TnT?:.? ':upv? . -------DATE: ONS MTTIGATION_SIZE: RECOMMENDATION OMRECOMMENDATION (Circle One) : ISSUE IS::,?JE!C'ONT? DENY ti-e- An coo v A7 a- IS WETLAND RATING SHEET ATTACHED : Y, ?,? CO???1iET?fTS : -T-14-o- ZS? Ooo ?/4C? 3 v V`-?-- mod &,r,- ? Cfc?o-,? Central Files ?A?a?? '???c M??J? 1/[?-^! ? l T_?s_?i?_ c?,_Q., "TO T?N-? T`??'GA "1_?rY1t 8. -Qq?1?J2.`.Q - / c c:: Regional Of ? ,e e Ij?,.A-?iit? (- - {/ ilu, 4-0 1 c.ca.? .si?y,?-?? ? ??.c'?r??e? -:t f ??GC?-? tom. taj,4 4W &C'c?d Ric.^ec ?- C ?vs `?- p.[? TINT ???!:T+?ES : L': , N/ r`T 7:_PPLI{'AELE) ?T ?)C 1'? QTY: PL?NC;t>ME:E U?osG PElR?IT TYPE : S J9!22; a kISTEk__AId-D`S;?l'Il_BASIIV__# : $&Yr en.,¢QIC. STk__ I ND EX_NO: "7 (1, 04.-03^O2 WATER IMPACTED BY FILL?; ON WL_ACR_EST? : `f N O?a?.l /420 MITIGATION?: `i N . . s Project name (.CLka Y County_ Ajar Hydrologically connected >,I.earest road McAkyy z 1-7' 1 'es Wetland width feet Date ? Hydrologically Isolated Wetland type (select one) ? Other ' ? Swamp forest Shoreline • ? Bottomland hardwood forest ? Brackish marsh ' ? Carolina bay ? Freshwater marsh ? Pocosin ? Bog/Fen • ? Pine savannah ? Ephemeral wetland ; ? Wet flat . The rating system cannot be ap plied to salt marshes. ' .••.••••..•.•.•.....••• Water storage .sum ......• •...,..•.•.•.• ..•....,? . Bank/Shoreline stabilization 4 00 Pollutant r emoval . • Sensitive watershed Trave corridor 1.50 l • w score ... Special ecological attributes .............. .... . Wildlife habitat x 1.50. Aquatic life value Recreation/Education 3 Economic value << x 0.25 '';?>> 49 i\. •Fu State of North Carolina Department of Environment, Health, and Natural Resources Asheville Regional Office James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Ann B. Orr Jonathan B. Howes, Secretary WATER QUALITY SECTION Regional Manager May 7, 1993 MEMORANDUM TO: John Dorney, Special Projects Supervisor Program Planning Unit _ /I Through: Forrest R. Westall? Regional Water Quali Pa isor / ARO From: Max L. Haner, En" ro h7tn/?A Water Quality Secti n / ARO Subject: Comments and Recommendation for Modification of 401 Certification Permit Number 92395 Proposed Sediment Removal by USFS - Lake Powhatan French Broad River Basin Buncombe County, North Carolina The proposed modification to subject project as submitted by USES on April 23, 1993, is simply for a change in the method of removing solids from Lake Powhatan and approval of those additional measures that will be employed to minimize downstream siltation and water quality problems. Repair to the outlet structure must be scheduled prior to dredging activities instead of after this work as originally proposed. Solids will still be deposited in the same upland disposal area, but will utilize a mechanical dredge instead of suction for their removal from the lake. DEM initially approved this project on 9/18/92. Those measures proposed by USFS to (1) maintain a settling pool behind the dam to allow removal of solids prior to lake discharge, (2) regulated the rate of discharge from the dam as much as possible, and (3) place check dams or erosion control structures instream to diffuse tributary flows into the lake during dredging activities are consistent with agreements made with Forrest R. Westall of this office on or about mid April, 1993. These measures should reasonably minimize downstream water quality problems from this project. Therefore, it is recommended that the proposed modification be approved and the project allowed to proceed to completion under the original certification as requested. Should you have questions, please advise. Interchank•c Ruilding, 59 WN-din Place, Asheville, N.C. 28801 • Telephone 704-151-6108 An Equal Opportunity Af innative Action Employer 4P - t DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 IN REPLY REFER TO September 30, 1993 S: November 30, 1993 Regulatory Branch Action ID. 199203603 Mr. John Dorney Water Quality Section Division of Environmental Management North Carolina Department of Environment, Health and Natural Resources Post Office Box 27687 Raleigh, North Carolina 27611-7687 Dear Mr. Dorney: Enclosed is the after-the-fact application of the U.S. Forest Service, for Department of the Army authorization and a State Water Quality Certification to retain fill material discharged into Lake Powhatan and Bent Creek in conjunction with lake drawdown in preparation for mechanical dredging of accumulated sediment from the lakebed. Continuation of the work proposed by the USFS will include discarges of dredged and/or fill material associated with beach expansion, temporary movement and stockpiling of sediment below the plane of ordinary high water, creation of islands and peninsulas, and dam resurfacing and gate replacement. Your receipt of this letter verifies your acceptance of a valid request for certification in accordance with Section 325.2(b)(ii) of our administrative regulations. We are considering authorizing the proposed activity pursuant to Section 404 of the Clean Water Act, and we have determined that a water quality certification may be required under the provisions of Section 401 of the same law. A Department of the Army permit will not be granted until the certification has been obtained or waived. In accordance with our administrative regulations, in most cases, 60 days after receipt of a request for certification is a reasonable time for State action. Therefore, if you have not acted on the request, or asked for an extension of time, by November 30, 1993, the District Engineer will deem that waiver has occurred. Questions or comments may be addressed to David Baker, Asheville Regulatory Field Office, telephone (704) 271-4856. Sincerely, G. W e Wri Chief, Regult r anch Enclosure • s -2- Copy Furnished (without enclosure): Mr. John Parker Division of Coastal Management North Carolina Department of Environment, Health and Natural Resources Post Office Box 27687 Raleigh, North Carolina 27611-7687 SEP 22 '93 08:17 COE-ASHEVILLE P.2/12 . y D Z/ United States Forest National orests United Stares Federal ?..,, -Department of Service in North Carolina Court House Building Agriculture 100 Otis Street P.O. .Box 275b _ __?_ _ _ ,l 99 D d 3 Asheville, NC 28802 Reply to. 2510 Date: September 20, 1993 Mr. Robert Johnson U.S. Army Corps of Engineers Regulatory Field Office 37 Battery Park Avenue, Room 75 Asheville, NC 2$$01-2714 Dear Mr. Johnson: Enclosed is an application for a Corps of Engineers (COE) 404 permit to repair/replace the outlet structures of the dam of Lake Powhatan and to dredge sediments from the lake. This application covers all pQtentially regulated work in the project area. Please note that some of the work, such as the excavated stream channel, will only be constructed if it is deemed necessary to control excessive erosion of the lake sediments. As noted in Black 8, some work on this project has already been accomplished, as you are well aware. This includes the construction of the temporary equipment pad and the temporary deposition of sediments and wasted gate structure on the lake bottom. Additionally, the three sediment traps below the dam were built following the'COE verbal approval given on site on September 14, 1993• Please be assured that it was never the intention of the Forest Service to initiate this project without the proper Section 401E (clean Water Act) permit from the COE. Work was started on the gate structure repair based on Donley Hill's understanding, following discussions with the burps and N.C. Department of Environmental. Management (NC-DEN) that the drawdown.'and-gate repair did not require a permit. We do understand now that the minor temporary deposition of fill for the equipment pad and near-outlet sediments do indeed need a permit. We would appreciate that the review and permitting process as possible. We want to proceed with the gate repair and once the contract is awarded so we can further reduce the sedimentation. S Caring for the lend and Serving People be expedited as much sediment dredging risk of downstream F54200-200192) . , SEP 22 '93 00:18 COE-RSHEVILLE P. 3:'12 GO'Mr Robert Johnson 2 By copy of this letter to Mr. John Dorney, NC-DEM, we are requesting a State 401 Water Quality Certification for the project. Both Micky Clemmons of the N.C. Wildlife Resources Commission and Max tuner of the N.C. Divfsioft of Environmental Management. Water Quality Section, have been cn site to review what is being done.. We will send each of these agencies copies of this application for their Comments. Sincerely, RANDLE G. PHILLIPS Acting Forest Supervisor Enclosure cc! Micky Clemmons. NC-WRC, Waynesville Forrest Westall, NC-DEM. Asheville John Dorney, NC-DEM, Raleigh Caring for the Land and Serving People FS-6200-2SM3192} SEP 22 99 oe:ie COE-ASHEVILLE P.4i12 APPLICATION FOR DEPARTMENT OF TH9 ARMY PERMIT ON& APPROVAL NO. 01104003 (W CFR 325) EKpirsts SO Sdpfembar Im i'ubitc rspadng burden lar this colm ad mn of knfornnndan is ssdmWWd b average 6 hours put rssponss for Nis majority d uses. W.1hu Ytp 0 t<nN far !wlswlrq fnaducdom. swcW.y existing data sourm, gadwrkng and mei Wning dw data nsadsd, and wnvW*v and mvlswirp On cokedon of infamadw. Appkado,w for isw or more OMVW pmki %. or dross kn ecaologkcelt f s4mOve areas. muW take up Io 504 hours. Send cormma toga** f" burden atimaw or arty other aspect of Us aWaawn d Ink tfon, i .&Aknp wggestiom for mdurdrq ft burden, to Depaftmt of Won", Washington Headgwrten Servkoe, Dkoonrau *w Iqk mwaporl Opsmdoru and pn***# 1216 ,ieQemw Davis Mghwaay, 5ulte 1204. Ar*Vwn. VA 2220-43172; and o the ofRoe of Mwmgw wt and 8udpst, Papanvwk PoWucoan Frojsst (07164M). Wawlri V%m% 00 24608. plume 04 W) T RVMRN your complNsd form to eftfter of dose addassses. Completed spokadon ettost tae sarbmitted /o tho Dbufat Englnesr having jttrl.dctfen wm tM Watlon of rtes propawd M "V, The Department of the AM permit program Is nuft KaW by $@Cdon 10 of the Rivers and Harbont Ac (of 1 t oo, SoCkm 404 of dw Clam Waw Aug wW Section 100 of to Wine, Prot edm t'kmoch and S anctuarles Act These saws require pemrits autir AVV stavttsas In or affecting no'Agabls Waaers of the W9ted Sratae, ms diedmup of dredged or fill mahwlol Into ureters of the Unkaed States. and tine transportmdon d dredoed material for the purpose of dumptreg it Im ocean watere. Info? provided on Us loan wit be need In eveluadng the appYwti t for a permlL Inlormadon in tfti,t applWan is made a matter of pubic raw# #wwoh issuem* of s public notice. Dtsdaa w* of Ow infomtadw mqueassrd is volun aryt h m*v*r, dta data requested are rreossavy In &dw w a mmunk a wiya die *W am and b evpluaw tine permit ippfiWion. If nsoatt q information is not WOWWed. she permit app radon Cannot bo protwsesd na can a peanb be 4ausd. One set of w1girisl drawings or good reprod KNe copies ~ WXAW rho losatlon and d aroctm of tits proposed .Cavity must be WAawd Io tiffs appikadm pus sample drawings and ft1rudefa) and be wbirzined to dw Mvkct Engt.,eer having Jurrisdtcyon owr dw loaatkon of to prcpoaed ac"ty. An spoked w that Is not awnplmwd in tW rap be rsaxned. t. APPLICATION NWBER (To be assigned by Coma) 3. NAM. AODRESS. AND THE OF AUTHORIZED AGENT Richard G. Burns, Forest Hydrologist ?c •r ,7 'i? USDA Forest Service, P. 0. Box 2750 1 f 9Z[?,3(?,0'-_:? Asheville, NC 28802 Telephone no. during business hms 2. HAIIG Ate A130RESS OF APPLICANT Forest Supervisor. AaC( f lfiesldsrtees National Forests in North Carolina u01704) ---- 25 ?..4"' toroo.} P.O. Box 2750 StAtwwtg Autttsr th?feby d"t mn area wi t ire Asheville, NC 28802 SIC 4?r? r.'_QL?a? naainmy Teisphau nw d Arv buak*n twos b"I as nnr agent itt Ow pmc*" g of W* pantrt wpffmfm and b finnimh. upon reatrest suppiv wntal Infoanadan In support of rho applimWa. Act ) (Ramidmrtrs} SK NA7URE OF APPLICANT DATE AA C( 700257-0,00 _ (OIGW) 4. 0ETALCO DESOgIi'TION OF PROPMED ACTMTY 4a. ACTNITY This application is for a multi-activity project in Lake Powhatan Recreation Area, Pisgah National Forest. The project includes: (1) kiechanically dredging sediment from the lake bottom; (2) Construction of a temporary equipment pad; (3) Excavation of a deepened stream channel through the existing lake sediments;.(4) Excavation and construct- ion of three temporary in-channel sediment traps; (5) Construction of a temporary sediment trap above the dais; (6) Placement of sand on the lake bottom for a public swine ning area. These activities are described in detail on the attached sheets. 4b.PuRpm The purpose of the project is to: (A) Repair the outlet structures (gate valves, etc.) of the dam which were no long ,Functioning; (B) Enhance public fishing opportunities, in particular, from the barrier free access fishing pier; (C) Improve aquatic habitat by providing deeper water pools; (D) Improve swi.itmaing conditions at the heavily used public swimming area. 46. DW AMEOFDWOWDORFILLMATEAK The diacharpe of dredged or fill material is described in the attached sheets descr•i.hi.ng each part of the project. C"v rvrf nR 4J40, ZMP V1 taurrrara of auv vt w OUSMET f -V&%w+t: CE{ WaOAI . . . ? SEP 22 "9c, 02:15 C OE-PSHEVILLS P. 5/4.2 6. A4 wES AND ADMESS ES OF AaZiMW G oPeRTY OWNERS. LESUESS. eTC.. WWAM PROPEMY ALSO AD.K.iM THE WAMWAY -The only downstream riparian property owlier. i.s the North Carolina Arb:or?tun; _ :?he:tettt;?ining land is part of the National Forest. A. WATERk=Y PkW LOW" CM WATEMODY WHBr4 AC'"Vr Y 1D(WS OR LS MOPOSED The project is located in Fake Powhatan, .a renen-mime lake on Bent Creek (NC Stream Index 6-67) a tributary to the Prench Eroad River,. Lake Powhatan has a State water quality classificat:ic of WS-IV B-Trout and Bent Creek is classified WS-IV. Thew water supply classification is due to A -pr izf? a ?y nraka on the hrexidi Rrr ij Fj= the ri-Ly,,_nf Aahpvi 11 e- - ^ ; a 1^njagLL i 4 i n 7. LOCATION C04 MDW'HEA9A+C:NiTYMSTSORISPRCOOSW ///Bi-mcombe County, south of Asheville (see attached PA / / &i.cini ty naps). Lake Powhatan is located in the Bent Creak Experimental Forest, Pisgah Ranger District, Pisga %tional Forest. This is about 2 miles south of I-26, off NC 191, Just north of the Blue S RWr. ROAD. ROUTE OR OTHER DE"VMVE LOCAPON - - Ridge Parkway. The project is in Buncombe County, North Carolina. CoUNIY UTATE Ztp CODE L,OM CICWERNMN3 BODY Wt'fai JLIW6TJb rO4 OVER ttE E. 0 any porrian of 0* ecwty for whkh w.haricwt w1, is w0gh1 WW eampleta? ? YES CI NO - ?.. It 19W At ill, "bear' ohm 1411AMw aWth and YAW 9,A Galivity was WWP* Wd. kxhcarrl the "Sling Wask 011 the d(dW nom. WTork was started uAn er,the mismderstanding that all n6cessary permits had been secured, including the COE 404 (COE Atition ID 199203603). Wien the original work plan was changed, both the COE and NC.-DEM was contacted. The State indicated in conversations that a 401 certificate was not required for the new work and our understanding from the COE was that, *:; 9. List alt aWauaM or CWJ1z6Oww anct dal , rbeeive4 irwn .& #"Kai. WWatate' Stets G( toast aowd&* for Onv suuerurea, carlstruC110A. dWdwrQM or COW OcWkies dawAbed In !%W WVpGcatiotr. 156UWG AOF.NV TYK Ai'NROVAL ME101FIGAT" NO. DATE OF APPLK)AT1oN OATS OP APPFtovAL DATE OF Da 04L COE 404 approval 199203603 7/23192 9/28/9 NC-M. 401 approval 92395 7/23/92 9/18/92 NC-DEM 401 extension 92395 4/:3/93 5/1.8/93 WC-DLM erosion control. -- letter dated 3/10/93 **therefore, a new 4,04 was not needed. After work was started, it is now understood that a CAE 404 pe-Mit: is needed for some of the project work. 10. A UM it ta( MW made, For s paruut a p MWIS to butt Ugo the aCra fiM deactibW hWain. t cattily ?hat L am daa iar with Ohs tntormdt+an corlteiasad In tltrr t dkitio(?. SW rhae w UW beat Of aW MOWM eflac and MW such inWme m Is uw, Cc:rlaptsw. and eemsta. I Fulthw &w ify that l paste rtlt) aSttflWaty to ar4wtaka it* Drapowd acthiitirr ur i m wwng m um duly tWi WV..,W apen2 at the 8ppiicsnr. C .0c 03NA OP ADPt1CAW DATE ? 9i ATUW QF A19t _ DATE " The sp#Joeffon must bat SVne i by Grp W304 who ddfirlrs A) underto Ole prOPCSeiy acdviW (APP6GA M) De it MOV bd Signod by a duty "Ibc ie,ad aunt it dw *Mfi rirant k) NO(* 3 has been Wed out and t r0neui 18 1,1.8.0. Se0bon 1001 PA7AJas t At t/dta Wee. its atly 111:1n W wlfiwl Sho Vi nadiclion of arty OeWnwt or minty of Tho UnilWd SW" im? MW WWUNy f MkW C+c WA , or CGS up by Arty vk*. adwurr^ at d a roust nW Wal yr nom any False. l ctibma or fraudukW. tttaSements ci reErrases;WAX1* or nuiltes tv uses a&/ ,Nnwv or dt t WI&MMt dWW to Wntaw any Wise 8tctitiat,a or fras nt OPAB twd of tknsy. ohs be A root M" assn $10.000 of irrotisated rat arore than &0 years, ar Ugh. ru+*weat Ot trdwar tSaN "U.S. Oawrmtru YOAV r ftw 1*61 rise rxEr'agea? (L 11( ?Atto us ta+.s+ l PO „o;?c u) ?, r.?fi.-`y a ea?k LaZ4 Ik G ov u vw?J, td c l • 9EP 22 '93 Oe:20 COE-ASHEVILLE P.6%13 ATTACHMENT #1 page 1 of 3 Description of Project Activities 1. Mechanically dredging (removal) of lake bottom sediments. Sequentially, this activity will involve: (a) Draw-down-of the lake to the extent possible; (b) Removal of the existing inoperable outlet gate-valve apparatus; (c) Loading de-watered sediments into trucks and hauling to disposal site; (d) Repair of outlet valves; (e) Refilling lake to previous levels. The draw-down of the lake was accomplished to the extent possible through the outlet structure. The bottom release valve was not functional. A temporary equipment pad was constructed onto the lake bottom sediments to allow a track-hoe to physically remove all the outlet apparatus, leaving only a 24" metal pipe through the dam. Although some sediments immediately above the pipe were. removed, several hundred yards of material passed through the pipe and were deposited in the channel immediately below the dam. Once the remaining lake bottom sediments have de-watered they will be loaded into trucks and hauled to a disposal site (see vicinity map) that is located in an upland area. It is estimated that there are about 35,000 cubic yards of sediments in the lake. The amount to be removed will be determined by the cost of the operation, however, the estimated removal is about 30,000 cubic yards. Only those areas indicated on the attached map will be dredged (see lake sediment map); no emergent wetlands will be dredged. If the funds available do not permit dredging of all desired fisheries habitat areas, some -remaining sediments may be pushed and paled into islands or penisulas to create deeper water habitat. This pushing and piling will not exceed 20,000 cubic yards. A new outlet valve structure will be constructed for the dam, This will consist of a bottom gate valve, a low-level outlet, and associated concrete and pipe structure. This low-I.evel outlet will provide cool water to enhance the downstream conditions for a cool water fisheries. All the lake sediments immediately above the outlet will be removed from the lake. When no longer needed the temporary equipment pad will be removed from the lake bottom. Once all the in--lake activities are complete the lake will be refilled. Sufficient water will be allowed through the dam during lake filling to maintain some streamflow in the channel below the dam. . SEP cc '93 08:20 COE-ASHEVILLE P.7/12 ATTACHMENT #1 page 2 of 3 2. Construction of a temporary equipment pad. A temporary equipment pad was constructed of logs, brush and soil fill on the lake bottom near the dam. This pad is about 30' wide by 75' long, with an estimated volume not to exceed 300 cubic yards. All this fill material will be removed from the lake before the lake is refilled. 3. Excavation of deepened stream channel The existing stream channel over / through the lake sediments may be deepened to stabilize it and reduce bank sloughing and bed erosion. The channel will"excavated with a track-hoe down to the stable lake bottom. The channel will be located at the approximate edge of the dredging, as shown on the sediment map. The channel will constructed with a trapezoidal shape, about 20 feet wide at the bottom with side-slopes of about 1:1.• The excavated material will temporarily piled at the edge of the channel and will removed later during the general dredging. 4. Temporary in-stream sediment traps. Three in-stream sediment traps have been constructed to trap sediment passing through the dam. The first is in a natural pool just below the dam. Sand bags have been added to the lower edge of this pool to make the lower edge more impermeable and increase the trapping efficiency. These sand bags will be removed once the project is finished. Sediment has been removed from the poll several times as was spoiled in a bermed area on the flood plain that is immediately adjacent the site.' This material has been and will continue to be stabilized. The dredged material may be hauled to the upland disposal site if needed and practicable. The second trap was constructed at the direction of the COE about 150 yards downstream from the dam. it consists of a low dam about two feet high. It is made of small riprap, faced With silt fence and 3inch diameter stone outside the cloth. The pool (streambed) was excavated about 13 inches to increase the trap capacity. All of the added fill material will be removed once the project is finished. Sediments collected by the trap will be removed and deposited on upland areas as needed. The third trap is located about 50 yards below the second. It consists of a sand bag dam in a narrow rock-walled section of the channel. All the fill material will be removed once the project is finished. Sediments collected by the trap will be removed and deposited on upland areas as needed. SEP 22 '99 05:21 CUE-ASHEVILLE P.8/12 ATTACHMENT #1 page 3 of 3 5. Construction of temporary sediment trap within the lake. A temporary sediment trap may be constructed immediately above the outlet pipe to provide initial trapping of sediments eroded from the lake. It will involve dredging all the sediments above the outlet pipe for about 40 feet and sloping the remaining banks back (about 1400 cubic yards). The dredged material will be piled on existing sediments for later removal. A low dam about 30 inches tall consisting of sand bags will be constructed about 8 feet in front of'the outlet. All the fill material will be removed when the project is finished. Sediment in the trap will be removed whenever necessary and will either be hauled to the upland disposal site or piled for later removal. `6. Placement of sand in the public swimming area. Approximately 1650 cubic yards of sediment (150'x300'x1') will be removed from the public swimming area. After removal, approximately 400 cubic yards of beach sand will be placed on the lake boLtom to improve the swimming conditions and aesthetics. a ,XXr 3l 08'2 '2 • -OE-ASHEUI, LLE, _ ;-, fj ,.• .. .a . ti ?? `gf 12 m 00 ? ? r-n 00 All CD R y? I , c el I ??' y , •) i .. i ice' i. '?'• ? , ?"`-'r / ?t .`? •,`? ??i? J3f '111 %? 4.. _ i•. IM , "r ., SEP 22 '93 09:23 COE-ASHEVILLE 11 r i S rn d m ell, ?`? 3> ?y -!? 7ly ?1 1 r M • ? f M r 7zo , y l a ail N1 l'} A Rd X C3 ,4. i M9-4 .4 x 7 Mr ? Uf "U ? 4 s 44 b 1,16 a P. 10'12 v b ? 0 4 M R i" I?• R • ? U '11 4 ? T ,-l/ kin .? ,?,.._.? -? ?i -a United States Forest National Forests United States Federal l yw Department of Service in North Carolina Court House Building Agriculture 100 Otis Box 2750 P.O. Asheville, NC 28802 Reply to: 2510 Date: September 20, 1993 Mr. Robert Johnson U.S. Army Corps of Engineers Regulatory Field Office 37 Battery Park Avenue, Room 75 Asheville, NC 28801-2714 Dear Mr. Johnson: Enclosed is an application repair/replace the outlet sediments from the lake. work in the project area. excavated stream channel, control excessive erosion for a Corps of Engineers (COE) 404 permit to structures of the dam of Lake Powhatan and to dredge This application covers all potentially regulated Please note that some of the work, such as the will only be constructed if it is deemed necessary to of the lake sediments. As noted in Block 8, some work on this project has Calready been accomplished, as you are well aware. This includes the construction of the temporary equipment pad and the temporary deposition of sediments and wasted gate structure on the lake bottom. Additionally, the three sediment traps below the dam were built following the COE verbal approval given on site on September 14, 1993• Please be assured that it was never the intention of the Forest Service to initiate this project without the proper Section 404 (Clean Water Act) permit from the COE. Work was started on the gate structure repair based on Donley Hill's understanding, following discussions with the Corps and N.C. Department of Environmental Management (NC-DEM) that the drawdown and gate repair did not require a permit. We do understand now that the minor temporary deposition of fill for the equipment pad and near-outlet sediments do indeed need a permit. We would appreciate that the review and permitting process be expedited as much as possible. We want to proceed with the gate repair and sediment dredging once the contract is awarded so we can further reduce the risk of downstream sedimentation. Ms Caring for the Land and Serving People FS-6200-28b(3/92) Mr. Robert Johnson 2 By copy of this letter to Mr. John Dorney, NC-DEM, we are requesting a State 401 Water Quality Certification for the project. Both Micky Clemmons of the N.C. Wildlife Resources Commission and Max Haner of the N.C. Division of Environmental Management, Water Quality Section, have been on site to review what is being done. We will send each of these agencies copies of this application for their comments. Si ncerely, ` //? ? ?- RANDLE G. PHILLIPS Acting Forest Supervisor Enclosure cc: Micky Clemmons, NC-WRC, Waynesville Forrest Westall, NC-DEN, Asheville John Dorney, NC-DEM, Raleigh L--' V 4!S Caring for the Land and Serving People FS-6200-28b(3192) 9'?q/ ? MENNNEEMM? APPLICATION FOR DEPARTMENT OF THE ARMY PERMIT ONB APPROVAL NO.0T104iW3 (33 CFR 325) Expires 30 September 1092 Public reporting burden for this collection of information Is esilmead to average S hours per response for the majority of eases. Including to time for reviewing Instructions. searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Applications for larger or more complex projects, or tale In ecologically sensitive areas. could take up to 500 hours. Send cortrnenta regarding this burden estimate or any otwr aspect of this collection of Inlormation. Including suggestions for reducing tmle burden, to Department of Deter". Washington Headquarters Service, Direct raw for Information Operations and Projects, 121S Jefferson Davis Highway. Suits 1204. Arlington, VA 222024302: and to the Ofllce of Management and Budget, Paperwork Reduction Project (0710-0003), Washington. DC 20600. Please DO NO? RETURN your oompieted form to either of these addresses. Completed application must be submitted to the District Engineer having juried{etlon over the location of the proposed activity. The Department of the Army permit program is authorized by Section 10 of the Rivers and Harbors Act of I M. Section 404 of the Clown Water Act and Section 103 of the Marine, Protection, Research and Sanctuaries Act These laws require pemm tB authorizing activities in or affecting navigable waters of the United States. the discharge of dredged or NI material into waters of the United States, and the transportation of dredged material for the purpose of dumping it Into ocean waters. Information provided on this form will be used in evaluating the application for a permit information in this application is made a matter of pubic record trough issuance of a pubic notice. Disclosure of ter information requested Is voluntary: however, the data requested are necessary in order to comrNxllcate with the applicant and to evaluate the permit application. k necessary Indomtation Is not provided. the permit application cannot be processed nor can a permit be Issued. One eat of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this application (sea sample drawings and instructions) and be submitted to to District Engineer having jurisdiction over the location of is proposed activity. An application that is not completed in full will be returned. 1. APPLICATION NUMBER (To be assigned by Corps) 3. NAME, ADDRESS. AND TITLE OF AUTHORIZED AGENT Richard G. Burns, Forest Hydrologist USDA Forest Service, P. 0. Box 2750 Asheville, NC 28802 Telephone no. during business hours 2. NAME AND ADDRESS OF APPLICANT Forest Supervisor AIC( ) (Residence) National Forests in North Carolina =(704) 257-4214 (Office) P. 0. Box 2750 Statement of Au ation: I hereby designate and autarize Asheville, NC 28802 Rt c440 G, 8140"S to act in my Telephone no. during business hours behalf as my agent in the processing of this permit application and to furnish, upon request. supplemental information in support of the application. AIC ( ) (Residence) SIGNATURE OF APPLICANT DATE A'c ( 704) 257-4200 (Office) 4. DETAILED DESCRIPTION OF PROPOSED ACTNITY 4a. ACTIVITY This application is for a multi-activity project in Lake Powhatan Recreation Area, Pisgah National Forest. The project includes: (1) Mechanically dredging sediment from the lake bottom; (2) Construction of a temporary equipment pad; (3) Excavation of a deepened stream channel through the existing lake sediments; (4) Excavation and construct- ion of three temporary in-channel sediment traps; (5) Construction of a temporary sediment trap above the dam; (6) Placement of sand on the lake bottom for a public swimming area. These activities are described in detail on the attached sheets. 4b. PURPOSE The purpose of the project is to: (A) Repair the outlet structures (gate valves, etc.) of the dam which were no long functioning; (B) Enhance public fishing opportunities, in particular, from the barrier free access fishing pier; (C) Improve aquatic habitat by providing deeper water pools; (D) Improve swimming conditions at the heavily used public swimming area. 4C. DISCHARGE OF DREDGED OR FILL MATERUL The discharge of dredged or fill material is described in the attached sheets describing each part of the project. 1 0 W R p SEP2210 F toEA?19 -W2 - MR VOW klWd WWARUS-O'S'n. )9m avo l mg p olm"u) ijM )o %)W eq mtp em )ou Pulxku! )0 Oo0'Ot$ mo wm lou Pmt eq Mp 'AAU9 A Weave" p)eWe4 jo sno" wM Aue tlteluoo of ewes Ww#aq luowloop )o Duwm to )cue seen )o ee>!ew )o mmplueso)deu jo queumew wWVne4 )o w anN 'wM Am seWw )o 1M pueow a 9mW jo,wo4oe "M Am Aq do 2*A00 30 'e1eMM VMJMM An IPM PUG A ftANOA ems Pwn ou p Aa)see )o wuewlmW Am p uoi1O!pomw as wow )elxmw Am u ')9Aww ;Ms mP!Aoid tool uogoes 'o's'n 9t 'peu0ls pue !no pelNJ ueeq sey E 1!oo!q u! )usumism etp 1! )us0e pezuoWne AN?p a Aq peu0!9 eq Am 8 io (Jueo!!dde) Al!Apos pesodoid etp 91!ej)epun of sei!sep o4m uosied etp Aq pe^ eq lsrnu uopeogdde eyl 31y0 1N30V d0 3H(UVNW 31va 1NVOrlddv d0 3Hn1VNM OZ' 1uealddt etp 101u9pt P8!b4Vw MV" 20 DMOe um I )o Oellwlot pmdold 9W oWliamm of ft"Ir g 94l sseesod 11e41 .lgww maml I -oopimooe pug 'el9owoo '9nn a ualew)Olu! 40M le!Ieg put 9ppe mmM Alu p wN an of 1041 Pug 'uo!lg?!pdt OR u! peu!elum ualeWblt! 941 41!M le!Ilulel Wg 13041 AI!1 I 'u!e)84 Peg!+omP ge!lwlae -a Oz4041ne o1 41!1W9d )0 1!11tlOd a p1 Aqe-4 gl uo!lgo!pdy '01 •?jzoM :loaCo.zd aq-3 jo atuos aoj papaau sT -1 nuzad +70+7 HOD P :jeqI poOIsaapun Mou ST IT 'palzels sum xaoM aaIJV •papaau IOU sEM +7017 Mau a 'azoja.aaq.3** £6/01/£ PaIep J9139T - ToaIuoo uorsoaa WHG_DN £6/81/5 £6/£Z/+7 S6£Z6 uorsuaIxa 10+7 WaG-ON Z6/81/6 Z6/£Z/L S6£Z6 Tuno.adde 10+7 WH(I-ON Z6/8Z/6 Z6/£Z/L Z09ZOZ661 TunO.zdde 170+7 SOO lvlN30 d0 31VO lVAOWW d0 aLVO NOUVOIIddv d0 31VO *ON NOLLVOI-M30 IVNOllddv 3dA1 AON30V emnssl •uo!lgo!Iddt s!4l q peq!lxep se!wj leylo 1o sednl4os!p 'ua10ni1suoo c9ml is Aue pl serJlieee Ieoo1 10aisle 'elglsre)u! 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'v m p R1... A 0 m a r „ D ' m z D M O m r n C m i l _D m z w Z Z IN -' I Imo- - r co,J, O'\ n? 9 O M Z ti ATTACHMENT #1 Description of Project Activities page 1 of 3 1. Mechanically dredging (removal) of lake bottom sediments. Sequentially, this activity will involve: (a) Draw-down of the lake to the extent possible; (b) Removal of the existing inoperable outlet gate-valve apparatus; (c) Loading de-watered sediments into trucks and hauling to disposal site; (d) Repair of outlet valves; (e) Refilling lake to previous levels. The draw-down of the lake was accomplished to the extent possible through the outlet structure. The bottom release valve was not functional. A temporary equipment pad was constructed onto the lake bottom sediments to allow a track-hoe to physically remove all the outlet apparatus, leaving only a 24" metal pipe through the dam. Although some sediments immediately above the pipe were removed, several hundred yards of material passed through the pipe and were deposited in the channel immediately below the dam. Once the remaining lake bottom sediments have de-watered they will be loaded into trucks and hauled to a disposal site (see vicinity map) that is located in an upland area. It is estimated that there are about 85,000 cubic yards of sediments in the lake. The amount to be removed will be determined by the cost of the operation, however, the estimated removal is about 30,000 cubic yards. Only those areas indicated on the attached map will be dredged (see lake sediment map); no emergent wetlands will be dredged. If the funds available do not permit dredging of all desired fisheries habitat areas, some remaining sediments may be pushed and piled into islands or penisulas to create deeper water habitat. This pushing and piling will not exceed 20,000 cubic yards. A new outlet valve structure will be constructed for the dam. This will consist of a bottom gate valve, a low-level outlet, and associated concrete and pipe structure. This low-level outlet will provide cool water to enhance the downstream conditions for a cool water fisheries. All the lake sediments immediately above the outlet will be removed from the lake. When no longer needed the temporary equipment pad will be removed from the lake bottom. Once all the in-lake activities refilled. Sufficient water will during lake filling to maintain are complete the lake will be be allowed through the dam some streamflow in the channel below the dam. ATTACHMENT #1 page 2 of 3 2. Construction of a temporary equipment pad. A temporary equipment pad was constructed of logs, brush and soil fill on the lake bottom near the dam. This pad is about 30' wide by 75' long, with an estimated volume not to exceed 300 cubic yards. All this fill material will be removed from the lake before the lake is refilled. 3. Excavation of deepened stream channel The existing stream channel over / through the lake sediments may be deepened to stabilize it and reduce bank sloughing and bed erosion. The channel will excavated with a track-hoe down to the stable lake bottom. The channel will be located at the approximate edge of the dredging, as shown on the sediment map. The channel will constructed with a trapezoidal shape, about 20 feet wide at the bottom with side-slopes of about 1:1. The excavated material will temporarily piled at the edge of the channel and will removed later during the general dredging. 4. Temporary in-stream sediment traps. Three in-stream sediment traps have been constructed to trap sediment passing through the dam. The first is in a natural pool just below the dam. Sand bags have been added to the lower edge of this pool to make the lower edge more impermeable and increase the trapping efficiency. These sand bags will be removed once the project is finished. Sediment has been removed from the poll several times as was spoiled in a bermed area on the flood plain that is immediately adjacent the site. This material has been and will continue to be stabilized. The dredged material may be hauled to the upland disposal site if needed and practicable. The second trap was constructed at the direction of the COE about 150 yards downstream from the dam. It consists of a low dam about two feet high. It is made of small riprap, faced with silt fence and 3 inch diameter stone outside the cloth. The pool (streambed) was excavated about 18 inches to increase the trap capacity. All of the added fill material will be removed once the project is finished. Sediments collected by the trap will be removed and deposited on upland areas as needed. The third trap is located about 50 yards below the second. It consists of a sand bag dam in a narrow rock-walled section of the channel. All the fill material will be removed once the project is finished. Sediments collected by the trap will be removed and deposited on upland areas as needed. ATTACHMENT #1 page 3 of 3 5. Construction of temporary sediment trap within the lake. A temporary sediment trap may be constructed immediately above the outlet pipe to provide initial trapping of sediments eroded from the lake. It will involve dredging all the sediments above the outlet pipe for about 40 feet and sloping the remaining banks back (about 1400 cubic yards). The dredged material will be piled on existing sediments for later removal. A low dam about 30 inches tall consisting of sand bags will be constructed about 8 feet in front of'the outlet. All the fill material will be removed when the project is finished. Sediment in the trap will be removed whenever necessary and will either be hauled to the upland disposal site or piled for later removal. 6. Placement of sand in the public swimming area. Approximately 1650 cubic yards of sediment (150'x300'xl') will be removed from the public swimming area. After removal, approximately 400 cubic yards of beach sand will be placed on the lake bottom to improve the swimming conditions and aesthetics. r G W 9 0 n w 0 G rt w N• 0 A G w a _n b En x ?e CD 0 a A G w a Z 3 ? i U. 0 f - i c r ? . 1 b 0 o '~ ?c 0 I 1 I W W J a a 6-4 Q N CL I-jW?.t-ZW ?+ H H a n. N I ch ? ? tY w o o V I Z ? v 1 1 N j - 7- 1 ~ A I = Q 0 A z a J CL p? z L? Q Q N 0 . o d. H- -ZED L?J H A Q LAJ (4 _j O? 4 od- M N X T n Y _ s L .v .. v v +4 ? .. ?' ? y t as P ' a. N Cn Q ?J O 4.1 -- Q` r3e 1?1f , J +1 , 1 i . Q 4o I + ® • M I 2@ ti C i r v ? o ? q ZINN 1 V ? 397 4.1 % "Its M N e + r 41-1 h s 4 s ? o ?b ? r? D d H rTl z -i -0 ? aD r D D ? tJ r Z a Z Z z c? -? c G Z y ? 70 %0 to y fyrl D ? m Z? C ?.< • ?' 3 ? Z m a y O d .? r^ r = r *i e ZI b v ? ti 3 0 0 s C §-4 1 '? I L 0 In ? c Z X State of North Carolina Department.of Environment, Health and Natural Resources Division of Coastal Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary Roger N. Schecter, Director September 28, 1993 MEMORANDUM TO: Mr. A. Preston Howard, P.E., Director Division of Environmental Management FROM: John R. Parker, Jr. Inland 1404' Coordinator SUBJECT: 1404' Project Review L*.W?FA A&141 7e IDEHNFi The attached U. S. Army Corps of Engineers Public Notice for Action No. 199203603 dated September 23, 1993 describing a proposed project by The USDA Forest Service, is being circulated to interested state agencies for comments on applicable Section 404 and/or Section 10 permits. Please indicate below your agency's position or viewpoint on the proposed project and return this form by October 8, 1993. If you have any questions regarding the proposed project, please contact me at 733-2293. When appropriate, in-depth comments with supporting data is requested. REPLY This office supports the project proposal. No comment. Comments on this project are attached. Signed This office objects to the project as proposed. r Date P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-2293 FAX 919-733-1495 An Equal Opportunity Affirmative Action Employer 50% recycled/ 1 0% post-consumer paper f State of North Carolina Department.of Environment, Health and Natural Resources Division of Coastal Management James B. Hunt, Jr„ Governor Jonathan B, Howes, Secretary Roger N. Schecter, Director September 28, 1993 MEMORANDUM TO: Mr. A. Preston Howard, P.E., Director Division of Environmental Management FROM: John R. Parker, Jr. Inland 1404' Coordinator SUBJECT: `404' Project Review A&4 ED EHNR The attached U. S. Army Corps of Engineers Public Notice for Action No. 199203603 dated September 23, 1993 describing a proposed project by The USDA Forest Service, is being circulated to interested state agencies for comments on applicable Section 404 and/or Section 10 permits. Please indicate below your agency's position or viewpoint on the proposed project and return this form by October 8, 1993. If you have any questions regarding the proposed project, please contact me at 733-2293. When appropriate, in-depth comments with supporting data is requested. REPLY Signed This office supports the project proposal. No comment. Comments on this project are attached. This office objects to the project as proposed. Date P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919-733-2.293 FAX 919-733-1495 An Equal Opportunity Affirmative Aclion Employer 50% recycled/ 10% post-consumer paper f h DEPARTMENT OF THE ARMY Wilmington District, Corps of Engineers Post Office Box 1890 Wilmington, North Carolina 28402-1890 Action ID. 199203603 September 23, 1993 PUBLIC NOTICE The USDA FOREST SERVICE, NATIONAL FORESTS IN NORTH CAROLINA, POST OFFICE BOX 2750, Asheville, North Carolina 28802 has applied for a Department of the Army (DA) after-the-fact permit TO CONTINUE AND COMPLETE THE LAKE DRAWDOWN AND DREDGING OF LAKE POWHATAN IN PISGAH NATIONAL FOREST, Asheville, Buncombe County, North Carolina. This public notice does not imply, on the parts of the U.S. Army Corps of Engineers or other agencies, either favorable or unfavorable opinion of the work performed; but it is issued to solicit comments on the factors listed above on which a final decision will be based. The following description of the work is taken from data provided by the applicant and from observations made during onsite visits by representatives of the Corps of Engineers. Complications associated with the lake drawdown resulted in discharges into Lake Powhatan and Bent Creek, as well as the release of hundreds of cubic yards of sediment downstream into the creekbed. A malfunctioning gate valve necessitated the construction of a 30-foot wide by 75-long equipment pad, consisting of 300 cubic yards of logs, brush and earthen fill within the lakebed, to allow for removal of the valve and accumulated debris. Three temporary sediment traps were strategically located and constructed downstream in Bent Creek for collection and periodic removal of accumulated sediment. The basins were constructed of a combination of sandbags, cobble and boulders, quarry rock, clean washed gravel, and filter cloth. A fourth temporary sandbag sediment trap is to be constructed immediately above the dam outlet pipe before any further excavation activities are undertaken. Maintenance of the dam structure is to include the installation of a new cool water release gate structure and regrouting of the dam. Plans submitted with the application show areas scheduled for mechanical dredging and removal of approximately 30,000 cubic yards of accumulated sediment, while the lake is drawn down. Sediment removal depths vary from 1.5 foot to 13 foot. The dewatered sediment will be loaded onto trucks for disposal at an upland site located off Ledford Branch Road. Approximately 20,000 cubic yards of remaining sediment are to be relocated within the lakebed to form islands or peninsulas to create deeper water habitat elsewhere. No impacts are to occur to the emergent wetlands at the head of the lake. 1,650 cubic yards of sediment will be excavated from the perimeter r -2- of the swimming beach to allow for the deposition of 400 cubic yards of beach sand to. improve swimming conditions and aesthetics. The purpose of the work is to-'perform needed maintenance to the dam and gate structure; enhance public fishing opportunities, in particular from the handicapped fishing pier; improve aquatic habitat by providing deeper water pools; and to improve swimming conditions at the heavily used swimming area. Plans, showing the work are included with this public notice. The State of North Carolina will review this public notice to determine the need for the applicant to obtain any required State authorization. No Department of the Army permit will be issued until the coordinated State viewpoint on the proposal has been received and reviewed by this agency, nor will a DA permit be issued until the North Carolina Division of Environmental Management (DEM) has determined the applicability of a Water Quality Certificate as required by PL 92-500. Approval of this permit will give Federal authorization for maintenance dredging for a period of time not to exceed 10 years from the date of permit issuance. The permittee will be required to present plans to the District Engineer a minimum of 2 weeks prior to commencement of such.maintenance work. All maintenance would be performed in accordance with Federal., State, and local permits and regulations governing such activities at the time the maintenance is undertaken. This application is being considered pursuant to Section 404 of the Clean Water Act (33 U.S.C. 1344). Any person may request, in writing within the comment period specified in the notice, that a public hearing be held to consider this application. Requests for public hearing shall state, with particularity, the reasons for holding a public hearing. The District Engineer has consulted the latest published version of the National Register of Historic Places for the presence or absence of registered properties, or properties listed as being eligible for inclusion therein, and this worksite is not registered property or property listed as being eligible for inclusion in the Register. Consultation of the National Register constitutes the extent of cultural resource investigations by the District Engineer, and he is otherwise unaware of the presence of such resources. Presently, unknown archeological, scientific, prehistorical, or historical data may be lost or destroyed by work under the requested permit. The District Engineer, based on available information, is not aware that the proposed activity will affect species, or their critical habitat, designated as endangered or threatened pursuant to the Endangered Species Act of 1973. The decision whether to issue a permit will be based on an evaluation of the probable impacts, including cumulative impacts, of the proposed activity and its intended use on the public interest. Evaluation of the probable -3- impacts which the proposed activity may have on the public interest requires a careful weighing of all those factors which become relevant in each particular case. The benefits which reasonably may be expected to accrue from the proposal must be balanced against its reasonably foreseeable detriments. The decision whether to authorize a proposal, and if so the conditions under which it will be allowed to occur, are therefore determined by the outcome of the general balancing process. That decision should reflect the national concern for both protection and utilization of important resources. All factors which may be relevant to the proposal must be considered including the cumulative effects thereof. Among those are conservation, economics, aesthetics, general environmental concerns, wetlands, cultural values, fish and wildlife values, flood hazards and flood plain values (in accordance with Executive Order 11988), land use, navigation, shore erosion and accretion, recreation, water supply and conservation, water quality, energy needs, safety, food and fiber production, mineral needs, considerations of property ownership, and, in general, the needs and welfare of the people. For activities involving the placement of dredged or fill materials in waters of the United States, a permit will be denied if the discharge that would be authorized by such permit would not comply with the Environmental Protection Agencies' 404(b)(1) guidelines. Subject to the preceding sentence and any other applicable guidelines or criteria, a permit will be granted unless the District Engineer determines that it would be contrary to the public interest. The Corps of Engineers is soliciting comments from the public; Federal, State and local agencies and officials; Indian Tribes and other interested parties in order to consider and evaluate the impacts of this proposed activity. Any comments received will be considered by the Corps of Engineers to determine whether to issue, modify, condition or deny a permit for this proposal. To make this decision, comments are used to assess impacts on endangered species, historic properties, water quality, general environmental effects and the other public interest factors listed.above. Comments are used in the preparation of an Environmental Assessment and/or an Environmental Impact Statement pursuant to the National Environmental Policy Act. Comments are also used to determine the need for a public hearing and to determine the overall public interest of the proposed activity. - Generally, the decision whether to issue this DA permit will not be made until the DEM issues, denies, or waives State certification required by Section 401 of the Clean Water Act. The DEM considers whether or not the proposed activity will comply with Sections 301, 302, 306, and 307 of the Clean Water Act. The application and this public notice for the Department of the Army permit.serve as application to the DEM for certification. Additional information regarding the Clean Water Act certification may be reviewed at the offices of the Environmental Operations Section, North Carolina Division of Environmental Management, Salisbury Street, Archdale Building, Raleigh, North Carolina. Copies of such materials will be furnished to any person requesting copies upon payment of reproduction costs. -4- The North Carolina Division of Environmental Management plans to take final action in the issuance of the Clean Water Act certification on or after November 15, 1993. All persons desiring to make comments regarding the application for Clean Water Act certification should do so in writing delivered to the North Carolina Division of Environmental Management, Post Office Box 27687, Raleigh, North Carolina 27611-7687, on or before November 10, 1993, Attention: Mr. John Dorney. Written comments pertinent to the proposed work, as outlined above, will be received in this office, Attention: David Baker, until 4:15 p.m., October 8, 1993, or telephone (704) 271-4856. SD 0 n 0 rr A C CY C Z co C. A tW _ :3. y SEP 22 '93 08:23 COE-ASHEVILLE P.10r'12-_ M ril 3> re ce All a d ch r zai t r 1 lb Al. W a Z 4-A ? q to t- z r ?? „e G ?+ p U 0 tr „ -? .,,? c t ... .Y -li r J? r DEPARTMENT OF THE ARMY Wilmington District, Corps of Enginee Post Office Box 1890 Wilmington, North Carolina 28402-18 Action ID. 199203603 PUBLIC NOTICE September 23, 1993 The USDA FOREST SERVICE, NATIONAL FORESTS IN NORTH CAROLINA, POST OFFICE BOX 2750, Asheville, North Carolina 28802 has applied for a Department of the Army (DA) after-the-fact permit TO CONTINUE AND COMPLETE THE LAKE DRAWDOWN AND DREDGING OF LAKE POWHATAN IN PISGAH NATIONAL FOREST, Asheville, Buncombe County, North Carolina. This public notice does not imply, on the parts of the U.S. Army Corps of Engineers or other agencies, either favorable or unfavorable opinion of the work performed; but it is issued to solicit comments on the factors listed above on which a final decision will be based. The following description of the work is taken from data provided by the applicant and from observations made during onsite visits by representatives of the Corps of Engineers. Complications associated with the lake drawdown resulted in discharges into Lake Powhatan and Bent Creek, as well as the release of hundreds of cubic yards of sediment downstream into the creekbed. A malfunctioning gate valve necessitated the construction of a 30-foot wide by 75-long equipment pad, consisting of 300 cubic yards of logs, brush and earthen fill within the lakebed, to allow for removal of the valve and accumulated debris. Three temporary sediment traps were strategically located and constructed downstream in Bent Creek for collection and periodic removal of accumulated sediment. The basins were constructed of a combination of sandbags, cobble and boulders, quarry rock, clean washed gravel, and filter cloth. A fourth temporary sandbag sediment trap is to be constructed immediately above the dam outlet pipe before any further excavation activities are undertaken. Maintenance of the dam structure is to include the installation of a new cool water release gate structure and regrouting of the dam. Plans submitted with the application show areas scheduled for mechanical dredging and removal of approximately 30,000 cubic yards of accumulated sediment, while the lake is drawn down. Sediment removal depths vary from 1.5 foot to 13 foot. The dewatered sediment will be loaded onto trucks for disposal at an upland site located off Ledford Branch Road. Approximately 20,000 cubic yards of remaining sediment are to be relocated within the lakebed to form islands or peninsulas to create deeper water habitat elsewhere. No impacts are to occur to the emergent wetlands at the head of the lake. 1,650 cubic yards of sediment will be excavated from the perimeter s„ 9w t of theb beach to allow for the deposition of 400 cubic yards of beach sand o,3'bli?jye swimming conditions and aesthetics. The purpose of the work is to perform needed maintenance to the dam and gate structure; enhance public fishing opportunities, in particular from the handicapped fishing pier; improve aquatic habitat by providing deeper water pools; and to improve swimming conditions at the heavily used swimming area. Plans showing the work are included with this public notice. The State of North Carolina will review this public notice to determine the need for the applicant to obtain any required State authorization. No Department of the Army permit will be issued until the coordinated State viewpoint on the proposal has been received and reviewed by this agency, nor will a DA permit be issued until the North Carolina Division of Environmental Management (DEM) has determined the applicability of a Water Quality Certificate as required by PL 92-500. Approval of this permit will give Federal authorization for maintenance dredging for a period of time not to exceed 10 years from the date of permit issuance. The permittee will be required to present plans to the District Engineer a minimum of 2 weeks prior to commencement of such maintenance work. All maintenance would be performed in accordance with Federal, State, and local permits and regulations governing such activities at the time the maintenance is undertaken. This application is being considered pursuant to Section 404 of the Clean Water Act (33 U.S.C. 1344). Any person may reques?, in writing within the comment period specified in the notice, that a public hearing be held to consider this application. Requests for public hearing shall state, with particularity, the reasons for holding a public hearing. The District Engineer has consulted the latest published version of the National Register of Historic Places for the presence or absence of registered properties, or properties listed as being eligible for inclusion therein, and this worksite is not registered property or property listed as being eligible for inclusion in the Register. Consultation of the National Register constitutes the extent of cultural resource investigations by the District Engineer, and he is otherwise unaware of the presence of such resources. Presently, unknown archeological, scientific, prehistorical, or historical data may be lost or destroyed by work under the requested permit. The District Engineer, based on available information, is not aware that the proposed activity will affect species, or their critical habitat, designated as endangered or threatened pursuant to the Endangered Species Act of 1973. The decision whether to issue a permit will be based on an evaluation of the probable impacts, including cumulative impacts, of the proposed activity and its intended use on the public interest. Evaluation of the probable r i -3- impacts which the proposed activity may have on the public interest requires a careful weighing of all those factors which become relevant in each particular case. The benefits which reasonably may be expected to accrue from the proposal must be balanced against its reasonably foreseeable detriments. The decision whether to authorize a proposal, and if so the conditions under which it will be allowed to occur, are therefore determined by the outcome of the general balancing process. That decision should reflect the national concern for both protection and utilization of important resources. All factors which may be relevant to the proposal must be considered including the cumulative effects thereof. Among those are conservation, economics, aesthetics, general environmental concerns, wetlands, cultural values, fish and wildlife values, flood hazards and flood plain values (in accordance with Executive Order 11988), land use, navigation, shore erosion and accretion, recreation, water supply and conservation, water quality, energy needs, safety, food and fiber production, mineral needs, considerations of property ownership, and, in general, the needs and welfare of the people. For activities involving the placement of dredged or fill materials in waters of the United States, a permit will be denied if the discharge that would be authorized by such permit would not comply with the Environmental Protection Agencies' 404(b)(1) guidelines. Subject to the preceding sentence and any other applicable guidelines or criteria, a permit will be granted unless the District Engineer determines that it would be contrary to the public interest. The Corps of Engineers is soliciting comments froth the public; Federal, State and local agencies and officials; Indian Tribes and other interested parties in order to consider and evaluate the impacts of this proposed activity. Any comments received will be considered by the Corps of Engineers to determine whether to issue, modify, condition or deny a permit for this proposal. To make this decision, comments are used to assess impacts on endangered species, historic properties, water quality, general environmental effects and the other public interest factors listed above. Comments are used in the preparation of an Environmental Assessment and/or an Environmental Impact Statement pursuant to the National Environmental Policy Act. Comments are also used to determine the need for a public hearing and to determine the overall public interest of the proposed activity. Generally, the decision whether to issue this DA permit will not be made until the DEM issues, denies, or waives State certification required by Section 401 of the Clean Water Act. The DEM considers whether or not the proposed activity will comply with Sections 301, 302, 306, and 307 of the Clean Water Act. The application and this public notice for the Department of the Army permit serve as application to the DEM for certification. Additional information regarding the Clean Water Act certification may be reviewed at the offices of the Environmental Operations Section, North Carolina Division of Environmental Management, Salisbury Street, Archdale Building, Raleigh, North Carolina. Copies of such materials will be furnished to any person requesting copies upon payment of reproduction costs. t -4- The North Carolina Division of Environmental Management plans to take final action in the issuance of the Clean Water Act certification on or after November 15, 1993. All persons desiring to make comments regarding the application for Clean Water Act certification should do so in writing delivered to the North Carolina Division of Environmental Management, Post Office Box 27687, Raleigh, North Carolina 27611-7687, on or before November 10, 1993, Attention: Mr. John Dorney. Written comments pertinent to the proposed work, as outlined above, will be received in this office, Attention: David Baker, until 4:15 p.m., October 8, 1993, or telephone (704) 271-4856. 0 m 0 R F+? A Q7 S7. Ac r 1 c n CD F+/ r?r ^M ryWry YW t?n •i SEP 22 '92 08:23 COE-ASHEVILLE P. 10/12 1I V1 ' .S? 1 t riy s C b 1 rn i c l , Cj a z _ a I m r y ? d p K ? 0 ?w ..a 3p rolZ 1,v b R b ti 0 n ? ? L y U 0 U .? ...? U ,....? United States Forest National Forests Department of Service in North Carolina Agriculture United States Federal Court House Building 100 Otis Street P.O. Box 2750 Asheville, NC 28802 Reply to: 2600 Date: April 23, 1993 Mr. John Dorney N.C. Dept. Health and Environmental Resources 512 N. Salissbury St. Raleigh, North Carolina 27604 Dear John: I am writing to request that the North Carolina Department of Health and Environmental Resources let stand the 401 water quality permit issued for the dredging of Lake Powhatan, but for mechanical removal and transport rather than by suction dredging. The principal difference will be that we will have to draw the lake down and repair the outlet structure prior to sediment removal rather than after as was planned for the suction dredging process. We will utilize the same upland disposal area and will probably actually dispose of less accumulated sediment. In terms of water quality effects, I anticipate more downstream sediment transport in the initial stages of the project as a result of the Pre-dredging drawdown, but there should be less of a chronic increase in turbidity and siltation downstream of the lake because there should be no turbid water return from the spoil area as there would have been with the suction dredging. As you requested, I discussed the project with Forrest Westall and he recommended the following mitigation measures: 1. Draw the lake down slowly so as to allow fish in the lake to move into headwater tributaries and to lessen the likelyhood of entraining oxygen deficient water. 2. Minimize lake bottom scouring by maintaining a small pool just behind the dam or by utilizing check dams, etc wherever they might reduce head cutting and scouring. Although there is some uncertainty about how closely we can control initial discharge because the outlet valve and associated structure is in disrepair we will attempt to effect a slow drawdown and should be able to accomplish this mitigation action. We will also employ the suggested mitigation tactics to minimize erosion and scouring of the lake bottom sediments. We should be able to employ several erosion control techniques toward this objective. S Caring for the Land and Serving People FS-6200-28b(3/92) „,i-obn Dorney 2 ?P I would appreciate it if you can expedite this request to let stand our " existing 401 water quality permit for this important fisheries habitat improvement project. We have twice solicited bids for suction dredging as proposed in our original permit request and now will be hard pressed to complete the project by the end of our fiscal year. I discussed the modified project proposal with Bob Johnson (Asheville Office U.S.C.O.E.)this morning and he agreed to issue a short fused notice of intent to modify our existing 404 permit pending your approval from a water quality standpoint. I will appreciate any support you can lend. Sincerely, Donley M. 11, Fisheries Program Manager cc Bob Johnson, U.S.C.O.E. Forrest Westall, N.C. Dept. Health and Env. Res. Micky Clemmons, NCWRC s Caring for the Land and Serving People FS-6200-28b(3/92)