Loading...
HomeMy WebLinkAbout19960338 Ver 1_COMPLETE FILE_19920101December 4, 1998 MEMORANDUM TO: Gloria Putnam THROUGH: John DomeOP) FROM: Eric Flee (=- RE: Ensign Harbor Marina (PAMLICO, NCDENR# 953, DWQ# 12293) Based on a review of the EA, the 401 Wetlands Unit offer the following: 1) The FONSI should address what (if any) additional or new rip-rap or bulkhead will be required for the additional boat slips. Is this expansion going to be completed without the use of these materials? If new or additional rip-rap or bulkheads are going to be used how many (linear feet) and how much fill waterward of MHW will be required? 2) The most recent SAV survey was completed in 1992. A new survey should be conducted in the immediate vicinity to document the presence of any SAV within the project's proposed footprint. If there is SAV, its distribution in relation to the expanded marina footprint should be included in the FONSL If there are any further questions regarding this matter please feel free to contact me at (919) 733- 1786 or eric-fleek@h2o.enr.state.nc.us Environmental Review Tracking Sheet DWQ - Water Quality Section Date: It 1-.'1 f 9 MEMORANDUM TO: Env. Sciences Branch (WO Lab) O Trish MacPherson (end. sps) d Kathy Herring (forest/ORW/HQW) O Larry Ausley (ecosystems) O Matt Mathews (toxicology) O Jay Sauber (intensive survey) Non Discharge Branch (Archdale 9th) O Kim Colson (Permitting) Wetlands (WQ Lab) (g4,'ha,pomey(, orps,.401,,construction) 1? O Cyndi Bell (DOT) O Eric Fleek (dredging) O DENR # 9.53 d ?? ¢ DWQ # / a,20-3 OEC i O Asheville O Mooresville O Washington O Fayetteville O Raleigh O Wilmington O Winston - Salem Planning Branch (Archdale 6th) O Alan Clark (basinwide planning) O Boyd DeVane (classifications & standards) O Annette Lucas (management planning) O Jeff Coutu (water supply) O Ruth Swanek (modeling) (Archdale 9th) Point Source Branch (Archdale 9th) O Dave Goodrich (NPDES) O O' Bradley Bennett (Stormwater) O O Tom Poe (Pretreatment) (Archdale 7th) O FROM Gloria Putnam, Local Government AssisLUnit, Planning Branch, 7th Floor, Archdale PROJECT: ?. ?\ \\ Attached is a copy of the above document. Subject to the requirements of the North Carolina Environmental Policy Act, you are being asked to review the document for potential significant impacts to the environment, especially pertinent to your jurisdiction, level of expertise or permit authority. Please check the appropriate box below and return this form to me along with your written comments, if any, by the date indicated. Thank you for your assistance. Suggestions for streamlining this process are greatly appreciated! r sa1t-.13d le;uawuaaAo$aa;uj 7y and;el912aT JO aaUJp ao;eulpaooZ) le;uawuoalnug aaJabli vglaw :01 NIM13'a (s;uounuoo goulle Jo r jioods).iaglo ? momp.i alalduroo of uoquuuo3rn luwojUnsul ? jumnuoz) ON ? -posodold se loafold of uoi;oaCgo ON ? (olquoilddu llu ?oago) osuodsod :,Coua2V/raMarnag asnoH-ul :a1uQ :uoBa p u??s ?a?eu¢YS ,, ?ij rnb lry ? .ialumpunolg ? ?l ,igno aale / uotluaJoad W s"1JU iatpo ? tualuS-uo;su>? uoilooloJd uopurpqj ? soomosa-d puu-l ? uolfurugmM ? IUISW QISLIA1 PHOS ? saomosag jsaJO3 ? auullnsuoD luuoijuwoa? J? uolgm-gsu tplEaH luluatuuonnu A JaauiSug ,C;TlunZj puu?? gialu2I ' saomosa-d Jajum ? ;)J!Ipl!ffilk Ja;umpuno.iD 0111ns0100W ? luatuadcuut?w luasuoD JaauM alpna?a,iu3 souayslA ouuuysL? JaauM W POS ? J! VA alt?nagsd ? ,tiarna21 osnoH-uI vary =gjo luuoisa21 oo!uo lvuorsou :tAolaq paluoipin se paM0iA0I,9uraq sc;oofold sqL :(auilp-p u+n3) anQ mod-,d aiuQ :pontaaag ais(I :fiunoZ) :iagmnH poford w.><03 MaInag jaa fold s.IIVJJV j>e;u0wuJan02.13;uj pue anpejs12aZ JO aaWp saaanosag )< injuN puU juawuoJtnug Jo auawlauda(l ENVIRONMENTAL ASSESSMENT For Compliance with the North Carolina Environmental Policy Act ENSIGN HARBOR MARINA Proposed by Mr. and Mrs. Nicholas J. Santoro 36 Old Lupton Road Merritt, NC 28556 (252) 249-2867 Prepared for : North Carolina Division of Coastal Management Department of Environment and Natural Resources P. O. Box 27687 Raleigh, North Carolina 27611-7687 (919) 733-2293 TABLE OF CONTENTS Purpose Background/Proposed Action 1. Existing Environment 2. Project Need 3. Alternative Analysis a. Proposed Action: Open Water Marina b. Upland Basin Marina c. Drystack Storage Marina d. No Action Alternative 4. Environmental Effects a. Land Use Changes b. Wetlands c. Prime Farmland d. Public Lands e. Scenic and Recreational Areas f. Areas of Archaeological or Historical Value g. Air Quality h. Groundwater Quality i. Water Quality j. Noise Levels k. Water Supplies 1. Shellfish/Fish and their Habitats m. Wildlife and their Habitats n. Introduction of Toxic Substances o. Eutrophication of Receiving Waters 5. Cumulative impacts 6. Mitigative Measures 7. Appendix A: N. C. Natural Heritage Program: List of Rare, Threatened and Endangered Plant and Animal Species and Natural Communities 2 8. Appendix B: U. S. Fish and Wildlife Service: List of Rare and Endangered Species 9. Appendix D: Project Plan/Aerial Site Photograph . 10. Appendix E: Project Site Plan References 3 ENVIRONMENTAL ASSESSMENT Ensign Harbor Marina Browns Creek, PAMLICO COUNTY North Carolina Purpose this is an Environmental Assessment as required under the State Environmental Policy Act (G. S. 113 A-1 through G. S. 113A-12). The Environmental Assessment is required because the proposed project involves the use of " public lands," which in this case involves the construction of a commercial marina over state-owned submerged lands. This document was prepared following the Procedures for Complying with the State Environmental Policy Act as outlined by the State Clearinghouse, North Carolina Department of Administration. This document is being submitted in conjunction with a Coastal Area Management Act ( CAMA ) Major Development Permit Application. Background/Proposed Action: The project site is a 3.6 acre tract located on the east side of Browns Creek in near Whortonsville, Pamlico County, North Carolina. The site is located on 36 Lupton Road (SR1326). The proposed project is the expansion of an existing ten-slip boat dock. Specifically, the project proponent proposes to construct twelve additional boat slips by expanding his existing dock to the south. The proposed expansion combined with the existing slips would bring the total number of slips at the site to twenty-two. The proposed marina development and expansion is the focus of this Environmental Assessment. 1. Existing Environment The property is a 3.6-acre lot located at 36 Lupton Road near Whortonsville in Pamlico County, North Carolina. Currently, the owner of the property resides on site in an existing dwelling. There is an existing pier with a total of ten slips, which are rented. There is an existing bathhouse with showers and restrooms facilities for patrons of the marina docks. These existing slips have water and electrical service. There is an existing gravel drive and parking area on site. . Soils on the site are mapped as Charleston Loamy Fine Sand. 4 Some of the surrounding land uses includes several one commercial marina, several residential docks and a few subdivision community docks. The Coastal Area Management Act (CAMA) Land Use Plan for the County of Pamlico designates the project area as 'Rural with Services'. The project site is not zoned. 2. Project Need Marketing analysis by the proponent has identified a need for additional boat slips in the local community. Typically, the existing facility has a waiting list for potential renters. In the general Browns Creek/Broad Creek area there are over 100 existing slips. Several area marinas have recently sold slips and there is a trend in the area for slip ownership. This trend has further increased the need for slip rentals. 3. Alternatives Analysis a. Proposed Action: Open Water Marina The proposed project is the expansion of an existing boat dock. The applicant proposes to construct a new 8' x 192' extension to the existing pier. Additionally, the plans call for six 4' x 14' finger piers. A total of 22 slips are planned. The proposed slip length is 391. That is twelve more than the existing ten slips. On the upland area, the applicant proposes to expand the parking. There is an existing parking area and the applicant proposes to construct an additional 561 x 100' gravel and marl parking area. b. Upland Basin Marina An upland basin marina was considered for the project. However, due to the project site being located in a primary nursery area and a significant coastal wetland fringe on much of the property the upland basin alternative was.not selected. c. Drystack Storage Marina An upland basin marina was considered for the project. However, due to the limited number of slips this alternative was not selected. Additionally, due to the relatively small scale of the project, the expense of a drystack storage marina would not be economically feasible. A drystack storage marina would also require excavation for a travel lift/ launching area and access channel. This excavation would occur in a primary nursery area. 5 d. No Action Alternative The no action alternative would be for the existing marine business to continue to operate without any changes at the site.. A socioeconomic impact of this alternative would be the potential loss of income to the property owner if he does. not expand his business. The expansion of the marina may justify the need for additional employees at the business. The project as proposed will include a pumpout. If, the project is not constructed then the pumpout will not be made available. 4. Environmental Effects a. Land Use Changes The project as proposed will not create any significant land use changes on the site. The expanded development of the site will allow for more boat slips and additional parking area but the marine business character of the site would remain the same. b. Wetlands There are coastal wetlands on the site primarily consisting of Spartina Cynosuroides and Juncus roemarianas. There also is a small area of 1404' wetlands on the site. There are no anticipated impacts to wetlands from the proposed project. A 1992 Resource Assessment of Browns Creek noted " no evidence of submerged aquatic vegetation was found at sites sampled in Brown or Broad Creeks." However, the occurrence of Ruppia Maritima, widgeon grass, has been noted in shallow water along the immediate shoreline of Browns Creek. Since the proposed slips are all limited to the waterward side of the proposed dock and the water depth is greater than 51, there are no significant impacts to SAVs anticipated. c. Prime Farmland Charleston Loamy Fine Sand is the dominant soil on site and is classified as a prime farmland soil. There are prime farmland soils on site but no farmland currently under cultivation. The parking area expansion will impact . approximately 5,000 square feet of prime farmland soils and there are no anticipated impacts to prime farmland from the proposed project. . d. Public Lands The proposed marina piers will occupy approximately 13738 sq. ft. of public trust waters. The current piers and slips occupy approximately 6240 sq. ft. of public trust waters. The net increase to impacts on public trust waters from the existing piers to the proposed piers is approximately 7488 sq. ft. The project site has approximately 435 linear feet of shoreline. The creek width at the project site is approximately 635' and the proposed total pier 6 length is 185' or less than 113 of the creek width. The existing pier is approximately 185' or 1/3 of the creek. e. Scenic and Recreational Areas The construction or operation of the proposed marina expansion is not expected to interfere or significantly impact any scenic or recreational area. f. Areas of Archaeological or Historical Value Based upon a review of maps compiled by the North Carolina Division of Archives and History which are housed in the N. C. Division of Coastal Management's Regional office, there are no known areas of archaeological or historical value on the project site. g. Air Quality The project site is located in an attainment area as designated by the N. C. , Division of Air Quality. Due to this fact, it is not anticipated the significant air quality impacts will occur. h. Groundwater Quality There is a plentiful groundwater supply in Pamlico County. According to the NRCS-USDA Pamlico County Soil Survey, " the surficial aquifer ranges from the water table to a maximum depth of about 75 feet. The Castle Hayne Formation is a very productive artesian aquifer and is the main source of water supply in the county. It ranges from 200 to more than 400 feet thick. The overlying Yorktown Formation produces moderate supplies of water". The County of Pamlico's water system currently services the project site. I. Water Quality The North Carolina Division of Water Quality designates Browns Creek as NSW-HQW The area is closed to shellfishing by DMF and DEH and is designated as a Primary Nursery Area by DMF. The total impervious coverage for the project site is less than 30%. The applicant has applied for a stormwater management 'low density development' authorization. The resource assessment of Browns and Broad Creek included sediment sampling. Six samples were taken at this proposed project site (2 near shore, 2 in a transition zone, and 2 along transects.) Standard methodology for dispersal and sieve analysis was performed to obtain mean grain size estimates. The sediments at the site were classified as fine sands and mean grain size generally decreased from shore towards the channel. J. Noise Levels Noise levels are not expected to significantly increase from the construction and operation of twelve additional boat slips. 7 k. Water Supplies The proposed project is not expected to significantly impact the Pamlico County Water Supply System. 1. Shellfish/Fish and their Habitats Only short-term minor impacts to shellfish or fish and their habitats are expected from the construction and operation of the proposed marina. The brackish waters of Browns Creek are typical of nursery areas found in the Pamlico Sound and Neuse River estuaries. Fish and shellfish which utilize these estuarine nursery areas are spot (Leiostomus anthurus) , Atlantic Croaker ( Micropogonias undulatus ), weakfish ( Cynoscion re_galis ), flounder Paralicthys spa ), Atlantic menhaden ( Brevoortia tyrannus ), penaied shrimp Penaeus spp.) , and blue crabs ( Callinectes sapidus). These estuarine nursery areas are utilized by. these species for parts of their life cycle, primarily for breeding and/or hatching and early development of the young. Based on an extensive survey by the North Carolina Division of Environmental Health, the waters of Browns Creek were closed to shell fishing. At the same time of the Browns Creek/Broad Creek closure and additional 100 acres within Orchard Creek were closed. The North Carolina Division of Marine Fisheries designates Brown Creek as a Primary Nursery Arga. 4 In the',.,,1992 resource assessment of Browns and Broad Creeks, six transects were conducted at the site of this proposed project. The transects were for oysters and submerged aquatic vegetation. No oysters (live or dead) or SAV's were located at the project site. The shellfish survey did indicate the presence of two small clams, Macoma blathica and Macoma mithelli. m. Wildlife and their Habitats The total upland project area is only approximately 3.6 acres and has been significantly cleared in the past. Based on lists provided by the North Carolina Natural. Heritage Program and the U. S. Fish and Wildlife Service there are no known threatened or endangered species or critical habitats at the project site. n. Introduction of Toxic Substances Petroleum products such as gasoline, diesel fuel, lubricants, etc which are associated with boating activities will be used on boats utilizing the marina. Bottom paints will be used on vessels occupying the marina. The patrons of the marina will need to strictly adhere to standards of the Environmental Protection Agency and the U. S. Coast Guard, as well as other federal and state laws to minimize impacts to the environment from these substances. Disposal of hazardous wastes from boat repair and maintenance will be performed in compliance with existing laws. o. Eutrophication of Receiving Waters See description under Water Quality 5. Cumulative Impacts Cumulative Effects Analysis of A Proposed Marina in Browns Creek Potential Proposed Action Past Action Other Present Actions Future Actions Cumulative Impacts Impact Area Fish Kills and * * * Disease ( Nuisance Algal Blooms Shellfish * ** * * ** Contamination, Disease, Kills and Bed Closure Fish Stock Reduction Nursery Habitat Reduction Human Health * ** * * + Hazards Kev: * low adverse effect ** moderate adverse effect * * * high adverse effect + beneficial effect ( pumpout installation)' blank box = no effect The cumulative impacts from marinas to the environment are identified from the Protecting Coastal Resources from Cumulative Impacts: An Evaluation of the North Carolina Coastal Area Management Act publication. The primary causes of these impacts from marinas are identified as: 1) oxygen deficits 2) toxins in water 3) toxins in sediments 4) pathogens 5) nutrient concentration The cumulative impacts from boat usage are fish kills and disease, nuisance algal blooms, shellfish contamination, disease, kills and bed closure, fish stock reduction, nursery habitat reduction and human health hazards. Causes of these impacts from boat usage are listed as: 1) oxygen deficits 2) toxins in water 3) toxins in sediment 9 4) pathogens 5) nutrient recycling 6) turbidity 6. Mitigative Measures Measures specified in slip lease agreements No overboard discharge and locked head policy. A marine pumpout will be provided on-site. Redevelopment is complying with stormwater management rules and improving the site control of runoff. 10 References Coastal Marinas: Field Survey of Contaminants and Literature Review, Report No. 91- 03, March 1991. Considering Cumulative Effects, Council on Environmental Quality, Executive Office of the President, January 1997. Guide to Estuaries.Albemarie Pamlico Estuarine Study. Marinas and Small Craft Harbors,Tobiasson and Kollmeyer, 1991. North Carolina Administrative Code T15A: Subchapter 213, 7H and 3J. North Carolina Department of Environment, Health and Natural Resources, Division of Environmental Management, North Carolina Coastal Marinas: Water Quality Assessment, Report No. 90-01, January 1990. Pamlico County Land Use Plan, County of Pamlico, 1992. Pamlico County Soil Survey, U. S. Dept. of Agriculture, Soil Conservation Service, August 1987. Protecting Coastal Resources from Cumulative Impacts: An Evaluation of the North Carolina Coastal Area Management Act: A Report of the Strategic Plan for Improving Coastal Management in North Carolina. North Carolina Department of Environment, Health and Natural Resources, Division of Parks and Recreation, Natural Heritage Program. List of. Rare Species of Pamlico County. February 1996. North Carolina Division of Coastal Management, CAMA Major Permit # 258-88, December 21, 1988. Report of Sanitary Survey, Oriental Area, Area F-5, October 1990-May 1997, Shellfish Sanitation Section, North Carolina Division of Environmental Health Resource Assessment of Brown Creek, Breedlove, Dennis and Associates, Inc. December 1992. Saltwater Sportfishing and Boating in North Carolina, 1981. SEPA Scoping Meeting, Whortonsville, NC on-site, July 21, 1998. The Physical Oceanography of Pamlico Sound,Pietrafesa, Janowitz, Chao, Weisburg, Askari and Noble, Department of Marine, Earth and Atmospheric Sciences, North Carolina State University U.-S. Fish and Wildlife Service, Federally-Listed , Candidate Species and Federal Species of Concern, April 1996. 12 P PAMLICO COUNTY Common Name Vertebrates American a1zator Black rail Kemp's ridley sea turtle Northern diamondback terrapin Red-cockaded woodpecker Manatee Vascular Plants Venus IIyt-aD Rough-leaved loosestrife Spring lowering goldenrod PASQUOT_4:'?'K COUNTY Common Na-•me Vertebrates Bald eaglt PENDER COUNTY Common \ame Vertebrates Shortnose sturgeon Bachman's sparrow American aiiigator Henslow's sparrow Loncrhead sea turtle Piping plover Rattnesque`s big-eared bat Southern hogaose snake Southeastern myotis Red-cockaded woodpecker Carolina goohcr frog Manatee Invertebrat-s Buchholfs dart moth Atlantic pigloe Venus IIt -wap cutworm moth Yellow lamomussel Croatan cravash Carter's spartiniphaga Vascular Plants Seabeach a=aranth April 1, 1996 Scientific Name Alligator mssissippiersis Laterallus jamaicersis Lepidochel s kempii ,11alaclemvs terrapin terrapin Picoides borealis Trichechus manatus Dionaea muscipula Lvsimocnia asperrlaejolia Solidago verna Scientific Name Haliaeetus leucocephalus Scientific Name Acipenser brevirostrum Aimophila aestivalis Alligator m usiss iDp ieru is Ammodramus henslowii Caretra caretta Charadrius melodus Corvnorninus (=Plecotus) ra4;;csoufi Heterodon simus jtfvotis austroriparius Picoides borealis Rana cgDito cap iio Trichecnus manatus Status T(S/A) FSC Endangered FSC Endanaer ed Endang°r ed FSC Endan_zered FSC Status Threatened Status Endangered FSC T(S/A) FSC Threatened Threatened FSC FSC FSC Endanaer ed FSC Endanaer ed Across buchnoL FSC Fusconaia masoni FSC Hemipacnnobiasubporp;rvr'asubporpm-rea FSC Lampsilis cariosa FSC Procambcrrs plumimarus FSC SDartiriphaga carterae FSC 1 -aranthus pumilus Thrcatcned 33 SCIENTIFIC AND STATE FED. STATE CONU TON NAME PROT. PROT. RANK Pamlico Vertebrates ALLIGATOR MISSISSIPPIENSIS T AMERICAN ALLIGATOR BOTAURUS LENTIGINOSUS SR AMERICAN BITTERN HIMANTOPUS MEXICANUS SR BLACK-NECKED STILT LATERALLUS JAMAICENSIS SR BLACK RAIL LEPIDOCHELYS. KEMPII E ATLANTIC RIDLEY (TURTLE) MALACLEMYS TERRAPIN TERRAPIN SC NORTHERN DIAMONDBACK TERRAPIN NERODIA SIPEDON WU_LIAMENGELSI SC CAROLINA SALT MARSH SNAKE PICOIDES BOREALIS E RED-COCKADED WOODPECKER TRICHECHUS MANATUS E MANATEE LRSUS AMERICANUS SR BLACK BEAR Vascular plants CAREX LUPUZIFORMIS SR HOP-LIKE SEDGE DIONAEA MUSCIPULA C-SC VENUS FLYTRAP LYSIMACHIA ASPERULIFOLIA E ROUGH-LEAF LOOSESTRIFE PLATANTHERA INTEGRA T YELLOW FRINGELESS ORCHID SOLIDAGO VERNA E/PT SPRING-FLOWERING GOLDENROD Natural communities BRACKISH MARSH _ COASTAL FRINGE EVERGREEN FOREST - ESTUARINE FRINGE LOBLOLLY PINE FOREST - HIGH POCOSIN LOW POCOSIN _ MESIC MIXED HARDWOOD FOREST (COASTAL PLAIN - NONRIVERINE SWAMP FOREST - NONRIVERINE WET HARDWOOD FOREST - PINE/SCRUB OAK SANDHILL _ NC NATURAL HERITAGE PROGRAM, NC DIVISION OF PARES A_N'D RECREATION, DEHNR Data compiled using BCD software developed. by The Nature Conservancy. T(S/A) S3 - SIB,S3 - S2B C2 S3B,S2 LE SAB,SZ C2 S3 - S3 LE S2 LE SIN - S3 GLOBAL, R.AINK G5 G4 G5 G4? GI G5T5 G5T3 G3 G2? G5 - SI G3? C2 S3 G3 LE S3 G3 - S1 G4 C2 S3 G3 S5 SI S3? S4 S3 S4 S3 SI S3 G5 G3? G3? G4 G3 G5T5 G2G3 G1 G4 FEBRUARY19% 1 ' . SCIENTIFIC AND COMMON NAME POND PINE WOODLAND TIDAL CYPRESS-GUM SWAMP WET PINE FL.ATWOODS Spe--cial animal habitats GULL*TERN*SKIMMER COLONY COLONIAL WATERBIRDS NESTING SITE MARSH BIRD NESTING AREA STATE FED. STATE PROT. PROT.. R-4-ti-K S4 - - S3 S3 GLOBAL, RANK G4G5 G4 G3G4 NC NATURAL HERITAGE PROGRAM, NC DIVISION OF PARKS AIM RECREATION, DEHNR FEBRUARY1996 Data compiled using BCD software developed by The Nature Conservancy. Ensign Harbor Marina Proposed Expansion- Twelve Additional Slips Whortonsville, NC- Pamlico County August 1998 OLD LUP70N LANDING LOT, 3, SECT, 11 „'' ?? ? sroR?C/h? unu¢ 9`? 51T? T LIMITS PROj ^ \\ uv- S K J9 / E i tick o?s? ` JJ1 m?? \•... J 5 T t4a 70 fl. SANTORO r't a v; , yr Cj`' G? os V OP 0650 % JEOhsJ1y ?? tlf 5 0??/ e?p $ °N \?` ao 16°x/ 0Pt y VICINITY MAP yl-3 ? z E _ R. o a a !t 11 PROJECT AREA: 3.5 ACRES INCLUDES UPLANDS AND MARShES. °y o Ai w is r g-S3 TYPICAL DEPTH SOUNCING, REPCRTED IN w r y sOwfc? Ne I Y FEET BELOW TI-E NORMAL WATER LEVEL OF BROWNS CREEK. ? rV ? Q m r o? ataD e -c-sc 9 Pt pi, ? T n ` '?, 4 • POWER POLE s ? ra \V1 ??••.y 4 ii •. x,47 SQ41t0/ ? 1 O e sE Exisru,c Q C -5.5m J m PIER ?,• ? N SZ j ?I Ln tt Ln a n 8 W is • ?\ /. • jl a 559 u ! M? SANT ORO 1i 1 %JEc? 11? I f? .??? \ 9 g 11` \ f ' 1 ?f1y NON N= 11, 460' !86' ?? / 1111 SI TE DEVEL OPMENT PLAN SEAL ENSIGN HARBOR MARINA 1-30d1? PROPOSED PIER & 12 SLIP MARINA EXPANSION •, -??'+y? ??R?? ,. t? D rS PORNES S ASSOC•ATfS i'' ••''h4 : TOWNSHIP 2, PAMLICO CO, NORTH CAROLINA pa OX79a7 yi5 4,GG ` s` NEW BERN, mc. 2856! +H,u ,•'- SCALE' 1•' s 100' •'\ 1919) 249-0488 '? II pf q8 DATE• JUNE 5, 1998 r i December 4, 1998 MEMORANDUM TO: Gloria Putnam THROUGH: John Dorney FROM: Eric Fleel?_ (-? RE: Ensign Harbor Marina (PAMLICO, NCDENR# 953, DWQ# 12293) Based on a review of the EA, the 401 Wetlands Unit offer the following: 1) The FONSI should address what (if any) additional or new rip-rap or bulkhead will be required for the additional boat slips. Is this expansion going to be completed without the use of these materials? If new or additional rip-rap or bulkheads are going to be used how many (linear feet) and how much fill waterward of MI-1W will be required? 2) The most recent SAV survey was completed in 1992. A new survey should be conducted in the immediate vicinity to document the presence of any SAV within the project's proposed footprint. If there is SAV, its distribution in relation to the expanded marina footprint should be included in the FONSI. 3) As the EA notes, this marina expansion will be occurring in SC, NSW, HQW and PNA classified waters. Further, as the EA notes, the presence of many commercially important, PNA- dependent vertebrates (weakfish, flounder, menhaden) and invertebrates (blue crab, penaied shrimp) are found in the area. There is numerous data detailing the adverse toxic effects of antifouling substances from boats on polycheates (Moore et. al. 1991), amphipods (Meador et. al. 1993), molluscs (Bryan et. al. 1989), benthic invertebrates and their instars (Salazar and Salazar 1988), flounder (Meador 1997) and how accumulated levels of anti-fouling materials derived from paint on boats can accumulate in sediments (Lee et. al. 1987) and become bioaccumulated in the food chain (Lee et. al. 1987). On Page 10, under "Mitigative Measures" the lease agreements will require: 1) No overboard discharge and a locked head policy. ddigial Jlslllll? 1V0.Jli 0.51 V1..1111..111.J. Literature Cited Bryan, G.W., P.E. Gibbs, G.R. Burt, and L.G. Hummerstone. 1987. Effects of tributyltin (TBT) accumulation on adult dog-whelks, Nucella lapillus: long-term field and laboratory experiments. J. Mar. biol. Assoc. U.K. 67: 525-544. Lee, R.F., A.O. Valkirs, and P.F. Seligman. 1987. Fate of tributylin in estuarine waters. In: Proceedings of the Organotin symposium of the Oceans '87 conference. Oceans '87 Proceedings International Organotin Symposium. Vol. 4, 1411-1415. Meador, J.P., U. Varanasi, and C.A. Krome. 1993. Differential sensitivity of marine infaunal amphipods to tributylin. Marine Biology 116: 231-239. Meador, J.P. 1997. Comparitive toxicokinetics of tributylin in five marine species and its utility in predicting bioaccumulation and acute toxicity. Aquatic Toxicology 37: 307-326. Meador, J.P., C.A. Krone, D. Wayne Dyer, and U. Varanasi. 1997. Toxicity of sediment- associated tributyltin to infaunal invertebrates: species comparison and role of organic carbon. Marine Environmental Research 43(3):219-241. Moore, D.W., T.M. Dillion, and B.C. Suedel. 1991. Chronic toxicity of tributyltin to the marine polycheate worm, Neanthes arenaceodentata. Aquatic toxicology 21: 181-198. Salazar, M.H., and S.M. Salazar. 1989. Acute effects of (his) tributylin oxide on marine organisms. Naval Ocean Systems Center Technical report 1299, San Diego, CA. 87 pp.