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HomeMy WebLinkAbout19950521 Ver 1_COMPLETE FILE_19950523State 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 Colonel Robert J. Sperberg District Engineer U.S. Army Corps, of Engineers. Wilmington District P.O. Box 1890 Wilmington, NC 28402-1890 November 28, 1995 A 'wA A14 D ? E NR REFERENCE: DCM95-74 Modify ACTID-95-2056 The Nature Conservancy, Experimental Burning Project Site, Green Swamp, Brunswick County Dear Colonel Sperberg: The State of North Carolina has completed its review of the Corps Public Notice Modification for project number Action ID-199502056, application by the Nature Conservancy to excavate and place dredged or fill material in wetlands of the Green Swamp for an experimental burning project. The modification, which changes the location of the project site within the Green Swamp, is needed because soils at the site originally proposed could not support the equipment necessary to mow the fire lines. Based upon our review we agree to amend our consistency position, dated August 18, 19952 to include the new site selected for the project. All conditions of our original consistency position remain in effect. Please note that an approved sedimentation and erosion control plan will be required for this project. Also, during our review the Division of Environmental Health noted that the proposed work will create mosquito breeding habitat. The Nature Conservancy should contact the Brunswick County Mosquito Control Office to discuss methods for mosquito control. Should either you or the Nature Conservancy have any questions, please contact Mr. Stephen B. Benton or 4s. Caroline J. Bellis, Division of Coastal Management, at (919)733-2293. Sincerely, ,,-',v.-Roger N. Schecter cc: Bob Stroud, Division of Coastal Management, Wilmington John Dorney, Division of Environmental Management Bennett Wynne, Wildlife Resources Commission Dan Sams Division of Land Resources Michael Mosey, Wilmington District Army Corps of Engineers 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/ 10% post-consumer paper State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B, Howes, Secretary A. Preston Howard, Jr., P.E„ Director October 16, 1995 Ms. Linda Gintoli The Nature Conservancy 321 North Front Street Wilmington, N.C. 28401 Dear Ms. Gintoli; FIFAA 4 9 A&I71rA E:) FE F1 FILE C?Subject: Certification Pursuant to Section 401 of the Federal Clean Water Act Revised application Experimental fire management practices Project # 95521, COE # 199502056 Brunswick County On 14 July 1995, the North Carolina Division of Environmental Management issued Water Quality Certification No. 3008 to The Nature Conservancy for your project to fill 23.6 acres of wetlands to conduct an experimental fire regime in the Green Swamp. On 6 October 1995, we received a revised application for this project at a new location. We have no objections to this plan and Certification No. 3008 is hereby transferred, to the new site. Please call Mr. John Dorney at 919-733-1786 if you have any questions. Sincerely, ston Howa r. P.E. wgc3008.rev cc: Wilmington District Corps of Engineers Corps of Engineers Wilmington Field Office Wilmington DEM Regional Office Mr. John Dorney Mr. John Parker, DCM 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 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 August 18, 1995 Colonel Robert J. Sperberg District Engineer `- U.S. Army Corps of Engineers Wilmington District P.O. Box 1890 Wilmington, NC 28402-1890 AT!N F ID EH F1 RECEIVED vtP ? ? 1995 E?rRONW NTA ,X, REFERENCE: ACTID-95-2056 The Nature Conservancy, Discharge Dredged or Fill Material in Wetlands Impacting 23.6 Acres Wetlands in the Green Swamp, Brunswick County Dear Colonel Sperberg: The State of North Carolina has completed its review for consistency with the North Carolina Coastal Management Program, pursuant to 15 CFR 930, of Corps Public Notice number Action ID- 199502056, regarding an application by the Nature Conservancy to excavate and place dredged or fill material in wetlands of the Green Swamp, impacting a total of approximately 23.6 acres of wetlands. The purpose of the work is to test models that predict ignition and consumption of organic soils and to evaluate the vegetation response to different level of peat consumption. Based upon our review, we agree with the applicant's determination that the proposed activity is consistent with the North Carolina Coastal.Management Program, provided the following conditions are met: 1. A 401 Water Quality Certification is issued for the project by the North Carolina Division of Environmental Management. 2. The Wildlife Resources Commission has expressed concern that the deposition of ditch spoil in wetlands could alter soils in the affected area to the point where a non-wetland vegetation response is induced. To address this concern, the vegetation response in the cleared, filled areas shall be compared to that of a cleared, unfilled area. The results shall be carefully documented and provided to the Wildlife Resources Commission and the Division of Coastal Management. 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/ 10% post-consumer paper 3. An approved sedimentation and erosion control plan may be required for this project. If required, the plan must be submitted to the NC Division of Land Resources at least 30 days prior to the initiation of land disturbing activities. Should either you or the applicant have questions regarding our finding or conditions, please contact Mr. Stephen B. Benton or Ms. Caroline J. Bellis, Division of Coastal Management, at (919)733-2293. .q inr•rmrrzl -,r Zz? ,4j Roger N. ?t Sche er cc: Bob Stroud,' Division of Coastal Management, John Dorney, 'Division of Environmental Management Bennett Wynne, Wildlife Resources Commission Michael Hosey, Wilmington District Army Corps of Wilmington Engineers .... . ,. NAMES- ? 9 ? // A ? 1 r? wr + n TO: t j j}y ?( q ' , , . t --1Bj}-_- Vft t. STAFF LJEi..!(-:IJT : {;..1 Ir- -' - T.M M35 T .. ANSWERED (USE NIA ..aO NOT a l PERMIT YR: 95 PERMIT NO: r t -' t RPT35TCANT GAME: NATURE Y+ -t {` 0.4. -_ ' -_ .. _ .. 1 RIVER,AND,SURnBAQTN,V 10-70 W L l M. "'A ? E. : AE °- _ :?r7 ? -TYPE: x ; _ r - FILL?: O WATER IKIN PTO YOV ,. ;. MORE TNTOT: Y/60 IS WE TnANQ RATING SHEET ATTACHED!: Y/46_0 HAVE Rt.-11_i.... A1 ...,,1,... _...1._, i. ! O ..: BEEN 1 '(l :-D 1'.1I.'.;i f.. l_P Tt.'+. ,. .... .-i..' C ----------- - ----- -------- Regional 05fice FECB ED 'JUL 7 on ENVROWNTALWIMES - ,,:_I q Fj oC2 c? RECEIVED DEPARTMENT OF THE ARMY 1995 Wilmington District, Corps of Engineers EWIRONMENTAL SCIENCES Post Office Box 1890 ODAkwsw Wilmington, North Carolina 28402-1890 Action ID No. 199502056 October 6, 1995 PUBLIC NOTICE MODIFICATION ON MAY 18, 1995, A DEPARTMENT OF THE ARMY PUBLIC NOTICE ANNOUNCED THAT THE NATURE CONSERVANCY, ATTN: LINDA GINTOLI, 321 North Front Street, Wilmington, North Carolina 28401, applied for a Department of the Army (DA) permit TO DISCHARGE DREDGED OR FILL MATERIAL INTO WETLANDS RESULTING IN ADVERSE IMPACTS TO AN ESTIMATED 23.6 ACRES OF WETLANDS IN THE GREEN SWAMP, north of Supply, Brunswick County, North Carolina. On October 2, 1995, the applicant submitted a revised plan for the proposed project, changing the site to another area within their Green Swamp Preserve. The change in location was necessary because the soil at the original site could not support equipment to mow fire lines. The following description of the work is taken from revised data and site plans (attached) provided by the applicant. The applicant proposes to impact 23.2 acres of wetlands located in the Green Swamp as a result of the discharge of dredged or fill material. The project areas where the discharges and impacts would occur include the following: 1.03 acres for the excavation of 3600 linear feet of 12.5-foot wide V-ditches to be used in the manipulation of ground water levels on the site by pumping water in and out of the ditches; 8.2 acres for experimental plots which will be hydrologically modified and burned, resulting in the loss of up to 18 inches of the organic soil surface; 8.4 acres for fire breaks which will be cleared by mowing and partially filled by spreading of excavated material from the ditches; and 5.5 acres for a buffer between experimental plots which will be hydrologically altered and may be partially mowed and filled by spreading of ditch spoil and/or partially burned during the experimental burning. The applicant describes the area's vegetation as disturbed pocosin. The proposed site is located within a one square mile plot known as "the test square" which had been planted with slash pine during an attempt to turn the area into a pine plantation during the late 60's and early 701s. This area has already been somewhat hydrologically modified by ditches and plow lines. The purpose of the proposed work is to field test models used to predict ignition and consumption of organic soils by forest fires and to evaluate the vegetative response to two different levels of peat consumption. The experimental procedure calls for two burn plots(a wet plot and a dry plot) separated by a buffer. Ground water levels in the plots will be controlled by pumping water in and out of the perimeter ditches. Ground water levels in the dry plot will be lowered to 18 to 24 inches below the surface to allow the consumption of 12 to 18 inches of the organic soil surface during the experimental burn. Ground water levels in the wet plot will be maintained at 2 to 4 inches below the surface to insure only the surface vegetation is consumed by the fire. The applicant has indicated that the hydrological impacts to the site should be short term. The applicant contends that because there is no outlet for the ditches, the natural hydrology will return to the area after pumping activities have stopped. The proposal does not include filling in the ditches after the experiment, due to the applicant's concern that the restoration activity will result in more harm to the area than leaving the spread spoil in place. The ditch spoil has been proposed to be spread over the fire lanes and buffer area to avoid the potential fire hazard caused by stockpiled organic material. The applicant suggests that any open water areas, including the -2- ditches, created by the experiment are similar to open water areas created by natural deep burns. The applicant has indicated that all disturbed areas will be allowed to naturally revegetate. The applicant proposes to monitor regeneration of the vegetation through stem counts and photo plots. The area will also be monitored to avoid any invasion by exotic species. 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 (NCDEM), Post Office Box 27687, Raleigh, North Carolina 27611-7687, on or before October 16, 1995, Attention: Mr. John Dorney. Written comments pertinent to the proposed work, as outlined above, will be received in this office, Attention: Mr. Michael Hosey, until 4:15 p.m., October 23, 1995, or telephone (910) 251-4441. lpD COS IA s COO Y N D ?3? ll S'S N ® v-ditch ® sump 12ba h goo = iaooo0 x 2. ZY?vvv G 5` x 100 00 x ? A R. A MowP? L c l.03 ? Attachment B: Experimental Burn Plan and layout of v-ditches. LWA1[at Ut iQE CtW L'W-tr "Al u" RISER V A7M Ok M IZ Ai A .,a N 7 i '[r M M N E h r 1O' '_ 00 M C/? U W rA 0 o w a? v co r y' ?W S 4 r.. r? ..r rF 1, .1 QtP :Y. '?. ? ?r-X 7q (?/ore ?- p 4070 rlfM pw f,"40- %r'1? f Qva? P y s /jar ? J Y I 1 fir' LE L.rr. ..•r , S"???jj77 fYf !„ J. Q? ! 1. :1• J .? y?y?Y .? ?.1 `f ti y? ? ? Y tj y f ? '. _.?t ??+Y r 1 y 3.( ? y / ;t?? ors `A} Zi i r 1, J ?f + ?J T qtr !? :7. - r- tY s r :!. 17 }, ',It ?., __., ? ?, n 4r .??,?,,tds +? c. r r^ • ? !` ? t t`` i Nrt €., ! r ?y?,,hr?????•-? ?1.-?i r ?:r r kit.. s? t: ? i ?. ?? j'"?1 '•r''??. ` Spa w-L -s,? ? ? r f ? .H • t. f' ?S. ? ,rr,. ?1 ., r _+ rJ f }? alt ,,..''N+'-J Yr1F 7 e r:.t r, i - rei r'i cJ.o '? +'ry :t`??? ?JS.Jr T?`J?ri??,{`ir(;??{ ?+ i., i t ? 1 / ,? r 9i ? ?.. ,rr? ?'r r (? r? ??t ??rf XutX .; ? s• + a s ?. ?? ? n 7° y r??t ? i {?.) ?" ='f' / .c• J r rf.;J s f j?,.c; r_w.y{ r?ly?,?"S i.. *lb?s+ ! +-.! r, s>tl `ji 1r?? *?rlt5??? J'.-1'-?' r; ; wj'??fk?T ` 1?y,1?I '`t'5'µ•1" sv ?. ?Y ?' - -... , . .? ? tv _ ?. .._ , , .." J c ! ,? ? .... ! l LZ _ x? vt r ti ? + rA t y,,r?'rj •+ Y ? J ?i? v t } J r C ?r?r r? r- '? State of North Carolina Department of Environment, Health and Natural Resources Division of Environmental Management James B. Hunt, Jr., Governor Jonathan B. Howes, Secretary A. Preston Howard, Jr., P.E., Director Ms. Linda Gintoli The Nature Conservancy 321 N. Front Street Wilmington, N.C. 28401 Dear Ms. Gintoli: A14 Ole ID EHNR FILE COPY Subject:' Certification Pursuant to Section 401 of the Federal Clean Water Act, Proposed experimental fire management practices Project # 95521, COE # 199502056 Brunswick County Attached hereto is a copy of Certification No. 3008 issued to Nature Conservancey dated 14 July 1995. If we can be of further assistance, do not hesitate to contact us. Attachments 3008.wgc July 14, 1995 Sincerely, lk? ston o d, Jr. P.E. R cc: Wilmington District Corps of Engineers Corps of Engineers Wilmington Field Office Wilmington DEM Regional Office Mr. John Dorney Mr. 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 NORTH CAROLINA Brunswick 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 The Nature Conservancy resulting in 23.6 acres of wetland impact in Brunswick County pursuant to an application filed on the 18th day of May of 1995 to conduct experimental fire regimes in pocosins. The Application provides adequate assurance that the discharge of fill material into the waters. of Green Swamp'in?conjimction with the proposed development in Brunswick County will not result in a violation of applicable -W?attr 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 (50 NTUs in streams and rivers not designated as trout waters by DEM; 25 NTUs in all saltwater classes, and all lakes and reservoirs;. 10 NTUs in trout waters). 2. DEM shall be copied on all interim and final reports concerning the changes in hydrology and vegetation. A detailed soil description shall also be submitted to six feet. 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 404 and/or Coastal Area Management Act Permit. This Certification shall expire upon expiration of the 404 or CAMA permit. If this Certification is unacceptable to you, you have the right to an adjudicatory hearing upon written request within.sixty (60) 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 14th day of July, 1995. DIVISION OF ENVIRONMENTAL MANAGEMENT Pre ton Ho? P.E. . WQC# 3008 DIVISION OF ENVIRONMENTAL MANAGEMENT WATER QUALITY SECTION MEMORANDUM: TO: John Dorney FROM: Ron Ferrell REF SUBJECT: Green Swamp Experimental Burn Project Brunswick County DATE: June 21, 1995 At the request of Jim Gregson I have reviewed the subject project. The purpose of the project is to test models that predict ignition and consumption of organic soils and to evaluate the vegetation response to 2 different levels of peat consumption. The project will require the excavation of perimeter ditches around the experimental plots that are 7.5 feet wide and 5.5 feet deep but will not be connected to any outlet ditch. A fire line 50 to 100 feet in width will be constructed around the plots. Water levels will be temporarily controlled by pumping water from the ditches. Due to the fire hazards associated with stockpiling organic soils the ditches will not be filled after the termination of the experiment. The spoil material will be evenly distributed throughout the fire line. It is my understanding that Jim has recently submitted a recommendation that the 401 WQC be issued for the project. I concur with his recommendation but request that the following condition be included in the certification: Copies of all interim reports, including a detailed description of the soil profile to a depth of six feet, and final report documenting the changes in hydrology and vegetation, if any, shall be submitted to the Division of Environmental Management, Water Quality Section. SOUTHEAST COASTAL PLAIN RECEIVED STEWARDSHIP OFFICE 321 North Front Street MAY 3 11995 Wilmington, NC 28401 ENVIRONMEnNrTALsCIENCES 919/762-6277 May 26, 1995 Mr. Michael Hosey, Regulatory Branch DEPARTMENT OF THE ARMY Wilmington District, Corps of Engineers P.O. Box 1890 Wilmington, NC 28402-1890 Dear Mr. Hosey: SUBJECT: GREEN SWAMP EXPERIMENTAL BURN, ID No. 199502056 Thank you for the opportunity to respond to additional questions you have regarding our application for a 404 permit to conduct needed support activities for the previously described experiment. You may remember from our application dated April 6, 1995 and our on the ground meeting of last week some of the following points: * Fire is a natural part of the pocosin ecosystems, and fire shaped the development of the associated plant communities. Interactions between fire and hydrology have been instrumental in the formation of the peat soils of this region and the maintenance of biodiversity in these wetland areas. * Fire suppression has altered the historical impact of fire in these plant communities. As a result, fuel amounts have increased and pocosins are more susceptible to uncontrollable and damaging wildfires. Prescribed fire seeks to reduce fire hazards (and the potential damage to the ecosystem from suppression activities), to reduce the extent of damage by wildfire, and to keep them smaller and within acceptable limits when wildfire occurs. * Experiments in these specific wetland community types are necessary to gain scientific data to understand the ecological consequences of different degrees of organic soil consumption. We also need to develop information for managers that would help them successfully implement a prescribed burning program that is environmentally sound and reduces the impacts of unwanted wildfires. * We need to conduct these experiments in wetland areas. Uplands, without organic soil, are not suitable for understanding the processes in organic soil systems. We have conducted an extensive search for suitable sites over a period of two years. This site at the Green Swamp meets all of our criteria for scientific purposes and for the purposes of having a safe controllable burn, which is a major concern for the North Carolina Forest Service. * The size of the plots, buffer area, and fireline surrounding the area have been minimized to satisfy the scientific, fire control, and hydrology needs. We have consulted with a hydrologist, an engineer, and soils folks about ditch design and procedures that would provide our needs with the minimum impact. * The original design called for connecting the drainage ditches to canals across the road. We changed the design so the ditches constructed are self contained and the water levels will be regulated by pumping. This design minimizes the loss of water and results in no change in the site hydrology except for the short period of pumping in preparation for the prescribed burn. * The ditches proposed in the plan are the minimum needed to achieve successful water control in preparation for the prescribed burning experiment. * When the prescribed burn is completed (November, 1995) the natural water flow will be restored. The ditches will not cause any drainage from the area or bring in outside water. Open water will be available in these ditches, but should not affect the natural water table levels, except for a small amount of additional evaporation during periods of low water tables. * The depth of the organic soil and the underlying clay are deep enough that the bottom of the planned ditches will not penetrate below the clay layer. Thus the ditches should not provide any other avenue of drainage for the perched water. * Except for the 1.2 acres of ditches that will have open water, drainage and discharge of dredged material from the construction of the ditches should not have any impact on the wetland vegetation. The vegetation is expected to reestablish itself within the range of what occurs as a result of historical wildfires and wildfires that typically occur during our current time period. It is natural for wildfires to consume 1 to 2 feet organic should and even up to 3 or 4 feet during dry periods. Observations from the 1994 Fish Day wildfire at the Croatan National Forest show that depth of peat consumption ranged from a few inches to several feet. Since all impacts are deemed to be temporary in nature and will serve to enhance not only the wetland system of the impact area but also the management of the remaining 14,000 acres of Green Swamp pocosin, we propose no mitigation beyond the monitoring and restoration described in our permit application. I hope I have answered you questions adequately. The time frame you gave me to respond does not permit much review on our part. If you need additional information, do not hesitate to contact me again. Sincerely, Linda K. Gintoli, SECP Steward cc. Mr. John Dorney NC Div. of Environmental Management. A REc?WD 5 DEPARTMENT OF THE ARMY MA? 23 ?? DES Wilmington District, Corps of Engineers ??ptSC?E Post Office Box 1890 SFMRON oar.`^N Wilmington, North Carolina 28402-1890 Action ID No. 199502056 May 18, 1995 PUBLIC NOTICE THE NATURE CONSERVANCY, ATTN: LINDA GINTOLI, 321 North Front Street, Wilmington, North Carolina 28401, has applied for a Department of the Army (DA)'permit TO DISCHARGE DREDGED OR FILL MATERIAL INTO WETLANDS RESULTING IN ADVERSE IMPACTS TO AN ESTIMATED 23.6 ACRES OF WETLANDS IN THE GREEN SWAMP, north of Supply, Brunswick County, North Carolina. The following description of the work is taken from data provided by the applicant. The applicant proposes to impact 21.3 acres (area 1200 feet by 775 feet) of wetlands located in the Green Swamp as a result of the discharge of dredged or fill material. The project areas where the discharges and impacts would occur include the following: 1.2 acres for the excavation of 4000 linear feet of 12.5-foot wide V-ditches to be used in the manipulation of ground water levels on the site by pumping water in and out of the ditches; 8.2 acres for experimental plots which will be hydrologically modified and burned, resulting in the loss of up to 18 inches of the organic soil surface; 6.3 acres for fire breaks which will be cleared by mowing and filled by spreading of excavated material from the ditches; and 5.5 acres for a buffer between experimental plots which may be partially mowed and filled by spreading of ditch spoil and/or partially burned during e e perimental burning. It has also been determined that an additions 2.3 acres outside the experimental area will be t, orarily impacted due to ra' d and/or lowered ground water levels, caused by t e p anned ma ipulation of the ground water levels during the experiment (total impacts approximately 23.6 acres). Plans showing the proposed work are included with this public notice. The applicant describes the area's vegetation as natural low to medium pocosin. The entire area has been mapped as Croatan soil by the Natural Resources Conservation Service. The purpose of the proposed work is to field test models used to predict ignition and consumption of organic soils by forest fires and to evaluate the vegetative response to two different levels of peat consumption. The experimental procedure calls for two burn plots(a wet plot and a dry plot) separated by a buffer. Ground water levels in the plots will be controlled by pumping water in and out of the perimeter ditches. Ground water levels in the dry plot will be lowered to 18 to 24 inches below the surface to allow the consumption of 12 to 18 inches of the organic soil surface during the experimental burn. Ground water levels in the wet plot will be maintained at 2 to 4 inches below the surface to insure only the surface vegetation is consumed by the fire. The applicant has indicated that the hydrological impacts to the site should be short term. The applicant contends that because there is no outlet for the ditches, the natural hydrology will return to the area after pumping activities have stopped. The proposal does not include filling in the ditcl s after the experiment, due to the applicant's concern that the restoration activity will result in more harm to the area than leaving the spread spoil in place. The ditch spoil has been proposed to be spread over the fire lanes and buffer area to avoid the potential fire hazard caused by stockpiled organic material. The applicant suggests that any open water areas, including the -2- ditches, created by the experiment are similar to open water areas created by natural deep burns. The applicant has indicated that all disturbed areas will be allowed to naturally revegetate. The applicant proposes to monitor regeneration of the vegetation through stem counts and photo plots. The area will also be monitored to avoid any invasion by exotic species. The applicant has determined that the proposed work is consistent with the North Carolina Coastal Zone Management Plan and has submitted this determination to the North Carolina Division of Coastal Management (NCDCM) for their review and concurrence. This proposal shall be reviewed for the applicability of other actions by North Carolina agencies such as: a. The issuance of a Water Quality Certification under Section 401 of the Clean Water Act by the North Carolina Division of Environmental Management (NCDEM). b. The issuance of a permit to dredge and/or fill under North Carolina General Statute 113-229 by the North Carolina Division of Coastal Management (NCDCM). C. The issuance of a permit under the North Carolina Coastal Area Management Act (LAMA) by the North Carolina Division of Coastal Management (NCDCM) or their delegates. d. The issuance of an easement to fill or otherwise occupy State-owned submerged land under North Carolina General Statute 143-341(4), 146-6, 146-11, and 146-12 by the North Carolina Department of Administration (NCDA) and the North Carolina Council of State. e. The approval of an Erosion and Sedimentation Control Plan by the Land Quality Section, North Carolina Division of Land Resources (NCDLR), pursuant to the State Sedimentation Pollution Control Act of 1973 (NC G.S. 113 A-50-66). The requested Department of the Army (DA) permit will be denied if any required State or local authorization and/or certification is denied. No DA permit will be issued until a State coordinated viewpoint is received and reviewed by this agency. Recipients of this notice are encouraged to furnish comments on factors of concern represented by the above agencies directly to the respective agency, with a copy furnished to the Corps of Engineers. 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 beheld 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 site 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 A w -3- 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 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 (EA) and/or an Environmental Impact Statement (EIS) pursuant to the National Environmental Policy Act (NEPA). 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 Department of the Army (DA) permit will not be made until the North Carolina Division of Environmental Management (NCDEM) issues, denies, or waives State certification required by Section 401 of the Clean Water Act. The NCDEM 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 (DA) permit serves as application to the NCDEM for certification. -4- 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 (NCDEM), Salisbury Street, Archdale Building, Raleigh, North Carolina. Copies of such materials will be furnished to any person requesting copies upon payment of reproduction . 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 (NCDEM), Post Office Box 27687, Raleigh, North Carolina 27611-7687, on or before June 9, 1995, Attention: Mr. John Dorney. Written comments pertinent to the proposed work, as outlined above, will be received in this office, Attention: Mr. Michael Hosey, until 4:15 p.m., June 16, 1995, or telephone (910)251-4441. l r ' • LUl Ai lOH q l y? CdLEM sluiilr w?iun lmsiiii- ........ 1V 1111111111' 1 1 1 , F` ,I. , HTrAc? me Ai f? \\\ Ioca ><?n/1 /?j a (? f. 51..,1 • ?' ,'! , R Federal Paperboard Plantations north boundary road 0 0 N d 3 ® sump Attachment B: Experimental Burn Plan ?N and layout of v-ditches. lSi?r?SQ c Q ? ( ! ?I? ??evet 1 U;1I'i III i '?OP? I I I , ' ' ' .??' c? ( 1 /rya. ?i e rye c 4' 5o - oo 1 - F??la? ?vn 1 - i- Imo! ?IPI 44, 10 Jfidl ?, OIN O IN AA, e, s p -' O vri Kj( 31 A • r DEPARTMENT OF THE ARMY WILMINGTON DISTRICT, CORPS OF ENGINEERS P.O. BOX 1890 WILMINGTON, NORTH CAROLINA 28402-1890 REPLY TO ATTENTION OF May 22, 1995 Regulatory Branch Action ID No. 199502656 Mr. John Dorney Division of Environmental Management North Carolina Department of Environment, Health and Natural Resources 4401 Reedy Creek Road Raleigh, North Carolina 27611-7687 Dear Mr. Dorney: 0 q?? `??* Goo ??9l .YA ?y J'p? V In F1, Enclosed is the application of The Nature Conservancy, Attn: Ms. Linda Gintoli, for Department of the Army Section 404 authorization and a State Water Quality Certification for a proposed burn experiment that would impact 23.6 acres of wetlands in the Green Swamp, north of Supply, Brunswick County, North Carolina. 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 is 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 July 11, 1995, the District Engineer will deem that waiver has occurred. Questions or comments may be addressed to Mr. Michael Hosey, Wilmington Field Office, Regulatory Branch, telephone (910) 251-4441. Sincerely, 4'e Wrig t egula ry Branch Enclosure Copies Furnished (without enclosure): Mr. John Parker Division of Coastal Management North Carolina Department of Environment, Health and Natural Resources Post Office Box 27687 1 ' h N +- 1, C ro ling 27611-7687 Ra eig or a Printed on 0 Recycled Paper L' 1 RECEIVED P 1995 J REGULATORY BRANCef Y April 6, 1995 Southeast Coastal Plain Stewardship Office 321 N. Front Street Wilmington, NC 28401 910/762-6277 Mr. Michael Hosey, Biologist U.S. ARMY CORPS OF ENGINEERS Wilmington District, Regulatory Branch P.O. Box 1890 Wilmington, NC 28402 Dear Mr. Hosey: SUBJECT: PERMIT APPLICATION - GREEN SWAMP EXPERIMENTAL BURN Attached you will find a revisions to our form 4345, Application for Department of the Army Permit, to construct fire lines and a water management system to support a research project on the Green Swamp Preserve, Brunswick Co., NC. We have been able to reduce the impacts to the associated wetland system significantly with additional input from soil scientists and hydrologists from NC State and ASCS. The revisions include oriented the study plots in an east west direction, deletion of the need of a water control structure, mowing rather than blading the fire line, and changing the dimensions of the plots. To do all this has required the need for additional ditching. The changes in calculations and wording of the permit application are indicated on the attached by ..... for deletions and underlining for additions to the-text. If you have any questions, please feel free to contact me at (910) 762-6277. Sincerely, Linda K. Gintoli Steward Enclosure A. 1 l 18. feature of Activity (Description of project, include all features) See Attached 19. Project Purpose (Describe the reason or purpose of the project, see instructions) See Attached USE BLOCKS 20-22 IF DREDGED AND/OR FILL MATERIAL_IS_TO_BE DISCHARGED 20. Reason(s) for Discharge Construction of the proposed ditches will require excavation of soil. Dredged material will be spread as evenly as possible over bladed fire line to avoid berming and alteration of surface water flow. 21. Type(s) of Material Being Discharged and the Amount of Each Type in Cubic Yards S 1-7 0 Approximately cu. yds. of peat or Coatan soils. 22. Surface Area in Acres of Wetlands or Other Waters Filled (seeinstructions) Dredge material will be feathered over 4.13 to 8.28 acres of bladed fire line. 23. Is Any Portion of the Work Already Complete? Yes No IF YES, DESCRIBE THE COMPLETED WORK 24. Addresses of Adjoining Property Owners, Lessees, Etc., Whose Property Adjoins the Waterbody (If more than can be entered here, please attach a supplemental list). Federal Paper Board Company PO Box 338 Bolton, NC 28423 25. List of Other Certifications or Approvals/Denials Received from other Federal, State or Local Agencies for Work Described in This Application. AGENCY TYPE APPROVAL" IDENTIFICATION NUMBER DATE APPLIED DATE APPROVED DATE DENIED "Would include but is not restricted to zoning, building and flood plain permits 26. Application is hereby made for a permit or permits to authorize the work described in this application. I certify that the information in this application is complete and accurate. I further certify that I possess the authority to undertake the work described herein or am acting as the duly authorized agent of the applicant. SIGNATURE OF APPLICANT DATE SIGNATURE OF AGENT DATE The application must be signed by the person who desires to undertake the proposed activity (applicant) or it may be signed by a duly authorized agent if the statement in block 11 has been filled out and signed. 18 U.S.C. Section 1001 provides that: Whoever, in any manner within the jurisdiction of any department or agency of the United States knowingly and willfully falsifies, conceals, or covers up any trick, scheme, or disguises a material fact or makes any false, fictitious or fraudulent statements or representations or makes or uses any false writing or document knowing same to contain any false, fictitious or fraudulent statements or entry, shall be fined not more than $10,000 or imprisoned not more than five years or both. U. S.GPO:1994.520.478/82018 t. APPLICATION FOR \RTMENT OF THE ARMY PERMIT s3 CFR 3251 OMB APPROVAL NO. 0710-003 Expires October 1996 Public reporting burden for this collection of information is estimated to average 5 hours per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send i:,,mments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Department of Defense, Washington Headquarters Service Directorate of InformationOperations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 22202-4302; and to the Office of Management and Budget, Paperwork Reduction Project (0710-0003), Washington, DC 20503. Please DO NO RETURN your form to either of those addresses. Completed applications must be submitted to the District Engineer having jurisdiction over the location of the proposed activity. H f? PRIVACY ACT STATEMENT Authority: 33 USC 401, Section 10; 1413, Section 404. Principal Purpose: These laws require permits authorizing, activities in, or affecting, navigable waters of the United States, the discharge of dredged or fill material into waters of the United States, and the transportiticif of dredged material for the purpose of dumping it into ocean waters. Routine Uses: Information provided on this form will be used in evaluating-the application for a permit. Disclosure: Disclosure of requested information is voluntary. If information is not provided, howevei,`the,petrtut application cannot be processed nor can a permit be issued. One set of original drawings or good reproducible copies which show the location and character of the proposed activity must be attached to this application (see sample drawings and instructions) and be submitted to the District Engineer having jurisdiction over the location of the proposed activity. An application that is not completed in full will be returned. 1. APPLICATION NO. 12. FIELD OFFICE CODE 13. DATE RECEIVED 14. DATE APPLICATION COMPLETED /ITFIUC RFI nW TA RAC 911 1 Fn RV APPI ICANTI 5. APPLICANT'S NAME B. AUTHORIZED AGENT'S NAME AND TITLE /an agent is not required) Linda K. Gintoli, SECP Steward 6. APPLICANT'S ADDRESS 9. AGENT'S ADDRESS The Nature Conservancy 321 North Front Street Wilmin on NC 28401 7. APPLICANT'S PHONE NOS. W /AREA CODE 10. AGENT'S PHONE NOS. W AR A COD a. Residence 910-762-2793 a. Residence b. Business 910-762-6277 b. Business 11. STATEMENT OF AUTHORIZATION I hereby authorize, to act in my behalf as my agent in the processing of this application and to furnish, upon request, supplemental information in support of this permit application. APPLICANT'S SIGNATURE DATE NAME, LOCATION AND DESCRIPTION OF PROJECT OR ACTIVITY 12. PROJECT NAME OR TITLE (see instructions) Green Swamp Burning Experiments 13. NAME OF WATERBODY, IF KNOWN ti/app#cabie) Green Swamp 15. LOCATION OF PROJECT Brunswick COUNTY NC STATE 16. OTHER LOCATION DESCRIPTIONS, IF KNOWN, lsee instructions! 14. PROJECT STREET ADDRESS li/appiicabiel Honey Island, NC Quadrangle about T 80 N, R 51 E - Please see attacment A Block 16 17. DIRECTIONS TO THE SITE North on SR 211 from Supply (SR 17 Intersection) approximately 6 miles. Go North and East on dirt road just North or past Driving Creek (Juniper Creek on some maps) for approximately 4.2 miles, study site is on SE corner of intersection. ENG FORM 4345_ Fah 94 EDITION OF SFP 91 IS ORSOI FTF. rooonent: C;ECW-ORI x ' _ ,r .•• LOl:AT1UH Ut Iit6 CHEEM ' 6MlUtP NAIURE RBSL8Y6 f t ' - f ? tlw.i?'rt!'tt" ? 1 ? •?'? ..?,' n fain ?„ 1 i' ••...,.... fr.•g.,r '.MO••r. M'?/Tir?r`?l' A•, 1 •.. ? xa,• tr•n••11 • ^ n.?r?•..r U 1 NVV frotl.l.nr,rJ C 1 p l ?1 ».•: '" rn• +EW Ur U.. S u '1 1 i min to t?l? /? ?wr.. Mrr ifri, ` '\ ww• n10•r "? Iw•[ •••'1 r C11r? ?. ?t ) >> 1 `I'YM•Jr•1•W IIli M•M.1 .i? 1 ?• 1'?1/1 t M,•..ww lM.r u1 A• ? wxrr , p wr.,•y, , f ' 13 ,lam ••rw rf. w•r ' ? ? CfI x . ? .ter ..: ••M•.•. ••\ t fw, ti?1u, t..r 1 r.r..+ Do.% 11 f1•Iw? 1•••« 7 Crr Jrri• ?. M. 01 lh1.w ?? ?!!•?? r1Y.ItfM ONt? 1 1 `? ?1 ? a•O.ww ' 1 )ft'T1' 111?.CJ• Irr1 f `f?}..._?.f l„••i?l f•,13) ! w... N.rr•nIi `I.w t?1 1 Y (!J .r??,JI'??r f.n??1 ll "???IC?.. b/..•'•.•fw '1 w t f J L; ?' 41 er• .I?i •? • fi:. w..w.r.r ?.? • • f fto 1 1 q..r .n? 44 '.??u ru, wlw +?if? ?• •Klfi ir'•'•ii'•.? 'k IrCMrrr. err' n»•1 1 1 ?,, M f IfaA 1it _ T » if 41 ..Wq not . )1•un I?7TACh "Ile A-1 As f t w .tnta-line I/[ a n f. •1 tl tt • ?r.r O L • j ?, •rr•_r r,r? 1 n • I -_ = MIUBESREgERys _ V Summary for the whole project Ditches constructed for this project are for the purpose of controlling the water table depth in the two experimental burn plots, with a minimum of effect on the surrounding undisturbed pocosin. These ditches will not be connected to any outside drainage system. Removal or addition of water from the plots will be done by pumping, so unless we are pumping, our activities will not alter the natural hydrology of the pocosin in the local area or back into the center of the swamp. The following figures summarize the total length and volume of spoil for the ditches. The discharge that is excavated will be feathered back into the firebreak around the plots or into the buffer area between the plots. We do not want to create a large berm that will provide a good source for the initiation of ground fire. * total length of ditch - 4,000 ft. * total excavated spoil - 5,680 cu. yd. * surface area in ditches = 1.1 Acres * surface area in firebreaks - 6.0 Acres * burn area (plots + buffer) - 9.6 Acres S,z a IN ?Ta C C' Cal C d cc ' "O' S o -F ? s P 0i'L") ILSI/ t BLOCK 18. NATURE OF ACTIVITY The primary purpose for this experiment is to test models that predict ignition and consumption of organic soils and to evaluate the vegetation response to 2 different levels of peat consumption. To accomplish the objectives of the study, as described in Block 19, a site within The Nature Conservancy, Green Swamp Preserve has been selected. A site with deep organic soils, where heavy equipment can.easily access and where we can adequately document pre-burn fuels, burning conditions, fire characteristics, and evaluate post-burn effects on vegetation and soils is needed for the experiment. The soils of the selected site are mapped as Croatan, and cursory examination indicate this to be true. The vegetation is natural low to medium pocosin. The details, and conditions required for the two treatments are described below. Because we recognize the difficulty of burning large tracts of pocosin, we propose three experimental units, each of about four acres in size. One plot will be burned under wet conditions to consume above ground vegetation but will avoid soil ignition by wetting the area. The second plot will be burned under dry conditions (< 150% moisture content) and soils burned to a depth of 12 to 18 inches. The third plot will be used as a control and receive no treatment. The proposed burns must be conducted so that fire is contained within the burn plots and smoke produced does not exceed EPA Air Quality Standards. To burn pocosin vegetation and soils to meet the study objectives and be within NC Forest Service safety guidelines, fire lines need to be constructed around both burn plots. The ability to control water using V-ditches, and or sprinklers is required to obtain the desired moisture levels within the burn plots and to protect the adjacent area. A diagram of the proposed alterations to the project site follows, Attachment B. 1. DRY Treatment - In this 4 acre treatment unit we want to initiate ground fire and consume 12 to 18 inches of organic soil (includes the root mat and some of the underlying muck). To obtain this amount of consumption the water table will need to be 18 to 24 inches below the surface and the moisture content of much of the soil above the water table needs to be 150 % or less (dry weight basis). 2. WET Treatment - In this 4 acre treatment unit we want the fire to consume only above ground vegetation with no ground fire initiated. To achieve this result the water table will need to be at the surface or within 2 to 4 inches of the surface. Moisture content of the organic materials should be greater than 350 % (dry weight basis). The experimental plots (each 4 acres in size) will be oriented with the long axis in a east-west direction. We propose that each plot be 300 ft. wide by 600 ft. long with a 400 ft. buffer between the dry and wet units. Vegetation in the buffer will not be disturbed, before burning, other than for ditch construction. The whole burn area will be ringed by a 50-100 foot wide fire break, which will be bush-hogged. Fire Line The prescribed burning of any area and particularly pocosin vegetation can be a hazardous activity if proper safety precautions are not taken. Under dry conditions pocosin vegetation can be highly flammable, with flame lengths exceeding 20 feet and spotting of areas outside the burn area likely, and peat soils are likely to smolder for many days. Therefore good fire lines are needed to secure the prescribed fire within the planned burn area. NCDFR recommends a 50-foot minimum to 100-foot wide bush-hogged or chopped fire break to control burns within pocosin vegetation. For the Green Swamp Experimental Burn we propose a 50 - 100 foot wide line around all four sides of the study area in addition to the width of the existing road and ditch and the proposed constructed ditch for fire control safety concerns. The actual width is variable and will depend on vegetation conditions (height and density) around the plots. ...... The fire lines will be constructed by bush-hogging or mowing vegetation at the ground surface and mashing litter into the soil. Some uprooting of shallow rooted vegetation may occur. Litter and turf will be feathered out as far as possible on the line (not pushed into windrows). Some rutting of soils may occur. Lines next to the burn plots 15-20 feet wide will be cleaner than the rest of the line and will serve as the actual fire break. * 262.000 sq. ft. or 6.0 acres of pocosin_vegetation will be temporarily impacted. * See Attachment B for cross section of fire lines Water Management for the Experiment There are four objectives for water management associated with this experiment: 1) help provide the desired soil moisture conditions required for the burning treatments; 2) manage water to keep the planned burns within the prescribed treatment areas; 3) provide water for fire suppression purposes in the event it is needed; and 4) all water management activities are temporary and natural hydrologic regime will be returned once burning activities are completed. Dry Treatment The dry plot will be located 50 ... feet east of the west road and 750 feet south of the north boundary road. We propose to construct a standard 5.5 ft. deep ditch around the whole plot Q00 by 600 ft.) with a (12 X 12 X 6 foot) sump hole at the southwest corner. * total length of ditch - 1800 feet * total excavated soil - 2556 cu. yd. with an average ditch width of 7.5 feet and depth of 5.5 feet * surface area of disturbance - 21,600 sq. ft or 0.5 acres * spacing between ditches - 300 ft. The plan would be to use the drainage system around the 4 acre plot to remove water from the root mat and aid evapo- transpiration to a small extent in lowering the water table in the muck under the root mat. The drainage system is not meant to be in lieu of a dry period. The drainage system could also be used to control the depth of the water table to some extent by pumping water into the system or by holding water back to help us hit our target water table depth and moisture content in the soil. In addition, the drainage system will be useful later for controlling ground fire if and when it needs to be mopped up, and for holding the ground fire within the plots. Wet Treatment We propose to locate the wet plot 300 ft. east of the dry plot, oriented in the same direction as the dry plot, and also 250 by 700 feet. The objective for ditches around this unit is totally different than for the dry treatment. The ditches will serve to store water in case it is necessary to pump water into the unit to maintain the water fable at 2 to 4 inches below the surface and to extinguish fire. Initially we are proposing to construct ditches around the west and south sides to hold water on the unit if we determine that we need to pump water on to the unit. If we accomplish our objective with ditches on these two sides it would require the following: * total length of ditch - 2200 ft. * total excavated spoil - 3124 cu. yd. with an average width of 7.5 feet and depth of 5.5 feet. * surface area of disturbance - 26,000 sq.ft. or 0.6 A. * connection to other ditches for drainage would not be required. spoil Currently, plans call for using a backhoe to dredge the ditches and spread spoil evenly over the fire line. The dredging of ditches for fire control will result in the removal of approximately 5,700 cubic yards of soil from the wetland system. This spoil will be feathered out over the fire line to fill ruts created by the fire line construction and to avoid berming of spoil and the resultant alteration of surface water flow. To leave berms along the ditched area would create a hazardous situation for possible ground fire. Because bermed organic matter is above the natural surface of the wetland, the soils are dryer than surrounding areas. These berms tend to ignite easier and smolder for longer periods of time than the surrounding surface soils. Any ground fire within these berms would be counter to the study objectives. Therefor dredge material from the ditch construction will be feathered out over the fire line. The total area of construction of the fireline is 5.7 acres. Water control structure Deleted. Restoration of Area The final objective of this project is to maintain the area in as natural condition as possible. To do so requires that the draw down of water from the site be strictly of short term duration. Therefore, once burning activities are complete, no further pumping or other drainage of the area will occur. Vegetation within the fire line will be allowed-to regenerate just as it will within the burn plots. By feathering out the soil dredged from the ditches we will permit the pocosin vegetation to come back from the released seeds within the soil or from sprouting of the remaining underlying root mat. Monitoring of the regrowth of vegetation will be continuous via stem counts and photo plots. Monitoring of the water table and flow of ground water will be done throughout the project with the aid of shallow ground water monitoring wells with inferred remote sensors. Because the area will be disturbed the exposed soils may be vulnerable to exotic species invasion. Monitoring for the evidence of exotics will be a priority and immediate action taken should invasion occur. We do not intend to refill the ditches with soil. We believe the need to stockpile the dredged soils, the possibility of the bermed soils igniting during the fire, and the additional heavy equipment . 3 work needed for moving the soil back into the ditches would cause more disturbance to the site than is acceptable to the study. Because refilling the ditches would cause more damage to the area than leaving them in place, water levels will return to normal because their is no outflow from the ditches. The resultant open water areas of the ditches will be quite similar to the open water that results from deep peat burning. It needs to be stressed that the changes to the landscape within the study area are deemed to be short term in nature and that natural processes will be allowed to play their role in the future. BOCK 19. PROPOSED PROJECT PURPOSE. Site Description The Nature Conservancy's North Carolina Chapter owns and manages a nearly 16,000 acre preserve in Brunswick County known as the Green Swamp Preserve. The lands and waters of this natural area are protected to preserve the plants, animals and natural communities that represent the diversity of life within the long leaf pine savannas and pocosin ecosystems of North Carolina's southeast coastal plain. The proposed study will take place in the northwest corner of the preserve, an area dominated by pocosin soils and vegetation. By definition, pocosins are shrub dominated swamps with organic soils. The soils of the study area are mapped as Croatan muck. The surface layer is well decomposed muck to a depth of 39 inches with a mineral content of 30 percent and organic content of 70 percent. Surface runoff is very slow to ponded. The soil has slow to moderately rapid permeability and high volume change when it dries. Water can move more freely laterally through the root mat in the upper portion of the peat soils. Hence drainage channels are most effective as long as the water table is above or at the root zone and in close proximity of the channels. The organic material is extremely acid. The areas vegetation is described as low pocosin or dense shrubby vegetation of persistently low stature (less than 1.5 meters tall) dominated by fetterbush, Lyonia lucida, titi, Cvrilla racemiflora, or honeycups, Zenobia pulverulenta, with frequent blaspheme-vine, Smilax laurifolia. Pond pine, Pinus serotina, swamp red bay, Persea palustris, loblolly bay, Gordonia lasianthus, and sweetbay, Magnolia virginiana, emerge as widely scattered and stunted as the canopy species. Background Fire is a key ecological process in the pocosin ecosystem. Flammability and intensity of fires in these plant communities is well known, and the prevalence of charcoal in the peat profile is a testimony to the longterm importance of fire. Fire is important to the persistence of a number of pocosin species as evidenced by the variety of fire adaptations. Nevertheless, few studies of the impact of various fire treatments on vegetation response have been done. Typically, burning of pocosins is accomplished to avoid burning of the peat soils; but historically, peat burns were important in the development process of pocosins, creating landscape diversity and often creating open water as a result of deep peat burning. We need to understand the ecological consequences of peat burning. As part of cooperative studies with the U.S. Fish and Wildlife Service, researchers at the Intermountain Fire Science Lab in Missoula, Montana have initiated studies on "Heat Transfer into the Duff and Organic Soil". Our agreement with the Fish and Wildlife Service calls for the Forest Service to conduct research into: The ignition and combustion processes in organic soils, the physical processes of heat transfer in duff and organic soils, and the physical and biological effects of fire on soils. The work described in this application is specific to the Green Swamp prescribed burn, but is complimentary to ongoing studies on the Croatan National Forest. Cooperators: North Carolina Nature Conservancy, North Carolina Forest Service, North Carolina State University, and U.S. Forest Service, Intermountain Fire Sciences Lab. Objectives: 1. Test ignition and consumption models for organic soils that have been developed and refined in laboratory experiments: Identify soil moisture relationships and spatial factors as related to microtopography and surface conditions. 2. Document burning characteristics of smoldering peat such as: Temperature histories during ground fire, depth of consumption, residence time for smoldering at a given point, and burnout of soil in relation to soil moisture and water table depth. 3. Contrast the vegetation response for treatments where no peat is consumed to treatments where 12 inches or more of peat is consumed. Identify the initial plant community composition and the rate of development after the fire. 4. Better understand the conditions when-peat will,ignite under controlled conditions so that we can better manage fire suppression activities on wildfires of natural pocosins. For example, using less hydrologic altering methods of fire control under certain moisture conditions. 5. Maintain the natural interaction of hydrologic and fire processes within the biological pocosin system. Related Activities: Throughout the course of the study information will be gathered on: Prefire and postfire vegetation cover and composition; Available fuel sampling; Soil temperature measurements; Soil nutrient sampling; Site micro-topography; Ignition and soil consumption evaluation; Water table monitoring; Ground water flow; Soil's water conductivity; and Photo monitoring. Time Period of Project: The preparation of fire lines and construction of drainage ditches must occur during the dry period of the year. May or June of 1995 is projected to be the best time to access heavy equipment onto the peat soils of the study site. Vegetation and soil sampling will begin as soon as permit is approved. The drainage ditches will be used to dry the dry burn plot until weather conditions allow the site to be burned safely and adequately. After the desired soil consumption by the fire has occurred ..... the water table will be permitted to return to natural conditions. It may be necessary to pump water back onto the site to extinguish any smoldering soils. The postfire monitoring will continue for at least two years. ..... The ditches will remain in place to avoid further damage to the site and to provide a site for future research. Final Results It is crucial to the project that the natural hydrology of the study area be returned immediately after the burning activities. The hydrologic regime is a major controlling factor in the natural regrowth of vegetation and the physical processes must go back to natural regimes if monitoring activities are to have any validity. Researchers will be monitoring the composition of vegetation regrowth for many years into the future. Our data will have no validity if water levels and other natural processes are not allowed to function. Federal Paperboard Plantations QN CO 0 CO 0 U) N 0) 3 ® v-ditch ® sump Attachment B: Experimental Burn Plan and layout of v-ditches. north boundary road I ?I P ll .i.? I a - ?j QCclIC Jq(ic9? f p S ,C b fcr V\ Cy C 6, 3 I ?o?o! z 1,3 Federal Paperboard Plantations canal- north boundary road r50 gged fireli et Plot CV) 600' >_ 0 m 3 0 0 Buffer 0 v plug 0 Dry Plot 0 CV) 600' \100' bush-hogged fireli v-ditch quo x 12. s = to ¢3sbo ® sump 11 tl ; ?tlto S L • ) =- Attachment B: Experimental Burn Pla and layout of v-ditches. 30o A too = I50oo0 36 0000 .?-3s6 0 D?rh ?lc?s L?00 A 600 = 240000 X60 6,3 13,8 Lql,Js 1100 X too )Ioood Ovo X S0 = 5500 0 '775 A /00 = 7 ??0 0 6i s x s? = .?a62s ? Z?3.75oo 356,4 G1, S t>MY ? C'6? Federal Paperboard Plantations north boundary road E sump 4N c4f 62 ?. Qc??S 4 2, 3 a 2 Jt. 6{{ ct c r c S GI-S N f ? U L s; Attachment B: Experimental Burn Plan and layout of v-ditches. 2 3 a Cies I ? I rid ('y ? ?.`o N.rl a J r (4; T t, ?. c S it ?S V,/,I( C? . ,5 f 1 y(4,1 S/ ISO ?Qa? nwdy dO i v 4 199.7 March 28, 1997 Mr. G. Wayne Wright, WILMINGTON DISTRICT, P.O. Box 1890 ? s-) t' Chief, Regulatory Branch CORPS OF ENGINEERS Wilmington, NC 28402-1890 Dear Mr.. Wright: SUBJECT: EXPERIMENTAL POCOSIN BURN AT GREEN BRUNSWICK COUNTY, NORTH CAROLINA PERMIT NUMBER 199502056 - PROGRESS ?'JpK (tg rc' SWAMP PRESERVE, REPORT In accordance with the general conditions of our permit (ID. 199502056), I am writing to update you on the status of the pocosin burning project. Mowing of the fire lines and digging the ditches around the two study plots occurred last year. Although we had some trouble with the contractor, we eventually did get two plots of usable, if somewhat smaller in size than planned (a diagram of the site study site is attached). Monitoring wells were installed last spring and data of water levels was downloaded last week. We have not analyzed the well data yet. We began sampling vegetation this month and should complete preburn sampling by the first of June. Our hopes are to burn this area with the assistance of the NC Dept. of Forest Resources this summer or fall, weather permitting. Two points of interest: One, bears do not like wells in their l.ra all... 11Y ti1 q.1ci a...Y J am. :--f the 71Tr, - 0 ._ ._ ,. soils transport water much quicker than percolation tests might indicate. As we dug the ditches we revealed many holes, about one inch in diameter, with water streaming through them. The ditches we had dug filled with water nearly as fast as the backhoe could work. The big question we of course have is whether or not we will be able to drain the ditches enough to burn the plots?? Sincerely, Linda K. Ginto-1.1 SECP Steward cc: A. Preston Howard, Jr. P.E. DEM c ?'`'?';. ... '? ? : i