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HomeMy WebLinkAbout19890682 Ver 1_Complete File_19890918it - 11 DIVISION OF ENVIRONMENTAL MANAGEMENT October 3, 1989 MEMORANDUM TO: THROUGH: Bill Mills, Environmental Engineer Operations Branch Roger K. Thorpe;, ?e( Quality Regional Supervisor Washington Regional Office FROM: Deborah Sawyer, Environmental Technician Water Quality Section, WaRO SUBJECT: DF/CAMA/401 Review Town of Manteo Project 400682 Dare County The above subject document has been reviewed. A site inspectio3t- performed on 89/08/30. The recommendation for this project is to issue the 401 Certification with conditions. The conditions are as follows: 1. To eliminate the proposal to dredge the area by the marsh between the existing Elizabeth II Channel and the "sewer dock" (see yellow shaded area on drawing). 2. Dredge depth to a maximum of 8 ft. on other side of "sewer dock." 3. Monitoring requirement prior to dredging (2 monitoring sites designated on drawing): a. Water column analyses for fecal coliform, chromium, copper, lead, zinc, nickel, mercury, total nitrogen and total phosphorus. b. Sediment analyses for fecal coliform, chromium, copper, lead, zinc, nickel, mercury, total nitrogen and total phosphorus. 4. Monitoring requirement during dredging: monitor twice weekly for settleable solids and turbidity in the dredging area. 5. Monitoring requirements at outfall of diked disposal area: monitor 1 time during discharge for fecal coliform, chromium, copper, lead, zinc, nickel, mercury, total nitrogen and total phosphorus. This office is of the opinion that dredging in this area could potentially cause contravention of water quality standards, as well as potential adverse effects to the adjoining wetlands. The area which is requested to be eliminated is deeper (9') than the surrounding waters (2'). The area in close proximity to the discharge pipe at the "sewer dock" is a potential problem for adverse affects of water quality. DS/cm 1 ? s M r. • x . H Q W A H z w U h A Qi O ? w w fy H ? W W w x c7 ca A W A tx W A x U A ? W H ? H O ? W O W W' W W V] .: State of North Carolina Department of Environment, Health, and Natural Resources Division of Environmental Management 512 North Salisbury Street • Raleigh, North Carolina 27611 James G. Martin, Governor October 19, 1989 R. Paul Wilms William W. Cobey, Jr., Secretary Director MEMORANDUM TO: John FROM: Bill SUBJECT: Appl Town Dare Parker Millsy icatio//n for CAMA Permit of Manteo County The Subject application has been reviewed for water quality impacts and the following comments are offered: a) The proposed project does require a Water Quality Certification but does meet. the requirements of General Certification No. 1273 for discharge of liquid effluent from an upland diked disposal area. b) It is recommended that dredging between the existing Elizabeth II Channel and the "sewer dock" not be allowed. It is further recommended that dredging on the other side of the "sewer dock" be limited to a maximum depth of 8 feet. Our field office is of the opinion that dredging in this area could cause contravention of water quality standards as well as possible adverse effects on the adjoining wetlands. The area requested for dredging to not be allowed is deeper (9 feet) than the surrounding waters (2 feet). The area in proximity to the discharge pipe at the "sewer dock" is an area which has a potential for adverse effects on water quality. P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone 919.733-7015 An F-iial 0--ortunity Affirmative Action Emalover i i John Parker October 19, 1989 Page Two C) It is recommended that monitoring before dredging be conducted as follows at two sites: One time for the following in the water column: fecal coliform, chromium, copper, lead, zinc, nickel, mercury, total nitrogen and total phosphorous. One time for the following in the sediment: fecal coliform, chromium, copper, lead, zinc, nickel, mercury, total nitrogen and total phosphorus. d) It is recommended that monitoring during dredging be conducted as follows in the area being dredged: Twice weekly for the following: settleable solids and turbidity. e) It is recommended that monitoring of the effluent from the diked disposal area be conducted as follows: One time during discharge for the following: fecal coliform, chromium, copper, lead, zinc, nickel, mercury, total nitrogen and total phosphorus. f) A location map is attached showing the area not to be dredged in yellow and the location of sample points for samples recommended in (c) above. BM/kls Manteo.mem/D-3 cc: Jim Mulligan SEP 1989 A- , WATER QUAUTY it I•::'`}A T r::-? OF/CAMA/401 RE',..' DATE 09/18/e9 NRT17l ENTERED THIS DATA, t.:.., .... ,.., ... ,!..it .,: i..... 00682 ,. ? ?::?1':1.1,1: •?•G:•G:iN OF !"iAN•i .:.t.. ASSIGNED TO, DAE FORMAT RECORD IS NO 00682 COUNTY ?.t :I: its i NOTICE : R{1t"?.:{•ar9A NEXT i°;{_.: 1.-' FRD DATA DARE? REGION: 0*'? N TYPE CER TIFICA TION RECOMMEND Tr...,:: `) •i e:,.1.... CAMA ONLY: GC: DIKED D!Si::: DENY: INITIAL REPORT: DF/CAMA: Y SEC P: SWPREQ: N HOLD: FINAL REPORT: 0909o!'..., STREAM: !"IN::.t.?i::..l.+U.I.fl:r SHALL OW +: ir•'G J:i?::}'?' CLASS: 'C BASIN: I"' t::'{ E r• COMMENTS: SITE LOCATED #'$1: 4y::; 0 IN S EWER DECK A!'•'.I:::A; ':: l°`Al...;...t.: WBAG BAY PROPOSAL TO DREDGE 2.55 s°?{...i'':1::.S t°Yi...ta....r : 'Si:. i'ii:i;NT,...'.t WATERFRON T 'i•t.t .. DEPTH i OF SITE INVESTIGATION ON 8 /30/89 RECOMMENDATION OF ISSUANCE WITH CONDI TIONS SEE ATTACHED MEMOR ANDUM FOR CONDITION.' .'..'.' r OFFICE OF COASTAL MANAGEMENT Lat:35054130" FIELD INVESTIGATION REPORT Long: 75°jgcv?vgp WASHINGTON OFFICE 1. APPLICANT'S NAME Town of Manteo AUL-3 Wg 2. LOCATION OF PROJECT SITE NC400. Manteo,_Dare Coun Sewer Deck Ar 3. INVESTIGATION TYPE: DREDGE & FILL x CANA x 4. INVESTIGATIVE PROCEDURE: `(A) DATES OF SITE VISIT 7-26-89' (B) WAS APPLICANT PRESENT no 5. PROCESSING PROCEDURE: APPLICATION RECEIVED 7-19-89 OFFICE Elizabeth City 6. SITE DESCRIPTION: (A) LOCAL LAND USE PLAN Manteo LAND CLASSIFICATION FROM LUP developed DEVELOPMENT CONSTRAINTS IDENTIFIED IN LUP NA (B) AEC(S) INVOLVED: OCEAN HAZARD ESTUARINE SHORELINE x COASTAL WETLANDS PUBLIC TRUST WATERS x ESTUARINE WATERS x OTHER (C) WATER DEPENDENT: YES x NO OTHER (D) INTENDED USE: PUBLIC X PRIVATE COMMERCIAL (E) (F) TYPE OF WASTE WATER TREATMENT: EXISTING NA PLANNED TYPE OF STRUCTURES: PLANNED (G) ESTIMATED ANNUAL RATE OF EROSION NA SOURCE, 7. HABITAT DESCRIPTION: (A) VEGETATED WETLANDS I (B) NON-VEGETATED WETLANDS: a AREA DREDGED FILLED OTHER (C) OTHER: soft bottom habitat 111,250sq.ft (D) TOTAL AREA DISTURBED: 8. PROJECT SUMMARY: the Manteo waterfront EXISTING "Sewer Dock" with finger piers licant 111,250 sq. ft to dredge 2.55 acres a Shallowbag Bay Bio Report July 31, 1989 SITE INVESTIGATION The applicant proposes to dredge 2.55 acres along the Manteo waterfront to a depth of 9 feet below NWL. The area is bisected by the "sewer dock," a 300 foot pier to the municipal sewage treatment plant. Several finger piers extend off of the pier, which is available for public dockage. Water depths along this pier were approximately 4.5 feet. A second pier terminating in a gazebo bounds one edge of the dredge site. The water under this pier was 8.5 feet deep 60 feet offshore and 11 feet deep 110 feet offshore. Water depths surrounding the area to be dredged vary considerably, from 2 to 13 feet. The existing channel for the Elizabeth II bisects the proposed dredge site at a depth of 13 feet. It decreases to 8 feet beyond the sewer dock. A 12 foot channel bounds the area near the gazebo pier. Near a natural shore vegetated with marsh plants, water depth is 2 feet. Most of the shoreline along the dredge site is riprapped with masonry debris. 'Approximately 220 feet of shoreline is not - hardened, and supports a variety of wetland plant species. ANTICIPATED IMPACTS The area would be dredged to a depth of 9 feet. Dredging to this depth in close proximity to wetland vegetation could cause sloughing of the vegetation and natural shoreline. Gently sloping the bottom away from the natural shoreline would minimize this problem. The dredging will disturb the bottom and temporarily increase water turbidity. No rooted submerged aquatic vegetation was observed. Some loose strands were observed floating by the piers. M The dredge spoil would be deposited on existing spoilsites at Pirates Cove. The spoil disposal should have minimal environmental impact beyond that already occuring at the spoil site. CAMA Review The site is classified as Developed in the Manteo Land Use Plan. The proposed dredging is consistent with the Land Use Plan. Submitted: T. Gray Hauser, Jr.? Date: July 31, 1989 tea` 4> e ?. 00. °0 DEPTHS ADJACENT TO PROPOSED DREDGE SITE • I a?SU17gv ww State of North Carolina Department of Natural Resources and Community Development Division of Coastal Management Highway 17 South • Elizabeth City, North Carolina 27909 James G. Martin, Governor William W. Cobey, Jr., Secretary MEMORANDUM TO: John Parker FROM: Gray Hauser 0-15..9/1 WW. SUBJECT: Town of Manteo Shallowbag Bay/Sewer Dock Dredging Site Dare County DATE: July 31, 1989 George T. Everett Director I recommend the permit be issued with the following special and standard conditions. To protect wetlands from erosion, dredge excavation in waters adjacent to vegetated wetlands shall be sloped at a 4:1 ratio, (4 units horizontal distance waterward to 1 unit vertical increase in depth). D&F (1) In order to protect juvenile and fin fish populations, no excavation or filling will be permitted between April 1 and September 30 of any year without the prior approval of the Division of Coastal Management. D&F (2) The excavation will be conducted below the normal water level. D&F (3) Excavation will not exceed 9 feet below the normal water level. D&F (4) No marsh grass will be excavated and/or filled. D&F (5) The temporary placement or double handling of excavated or fill materials within waters or vegetated wetlands is not authorized. D&F (6) The disposal area effluent will be contained by pipe, trough or similar device to a point at or below the normal water level to prevent gully erosion and Route 6 Box 203, Elizabeth City, North Carolina 27909 Telephone 919-264-3901 An Fg11,,1 Om)nrtunity Affirmativc A, rion Fmplovcr John Parker Memo July 31, 1989 Page two unnecessary siltation. D&F (7) The terminal end of the pipeline will be positioned at or greater than fifty (50) feet from any part of the dike and a maximum distance from spillways to allow settlement of suspended solids. D&F (8) A water control structure will be installed at the intake end of the effluent pipe to assure compliance with water quality standards. D&F (9) The diked disposal area will be constructed a sufficient distance from the mean high water level or any marsh to eliminate the possibility of dike erosion into or upon any marsh and/or surrounding waters. D&F (10) All excavated materials will be confined above mean high water and landward of regularly or irregularly flooded marsh behind adequate dikes or other retaining structures to prevent spill-over of solids into any, marsh or surrounding waters. case type or print. Carefully describe all anticipated velopment activities, including construction, excava- -n, filling, paving, land clearing, and stormwater con- ,1. If the requested information is not relevant to your eject, write N/A.(not applicable). Items 1-4 and 8-9 List be completed for all projects. APPLICANT Name Town of Manteo Address P.O. Box 246 City Manteo State Nr: Zip 27954 Day phone 919-473-713-1 X Landowner or Authorized agent Project name (if any) Shallowbat Bay/ Sewer Dock Dredging if you plan to build a marina, also complete and attach Form DCM-MP-2. b. Is the proposed activity maintenance of an existing project, new work, or both? mainrpn^nnp c. Will the project be for community, private, or commercial use? community d. Describe the planned use of the project. deepening the area around the Municipal pier so as to safely accommodate the expected increase in vessels visiting Manteo as a result of the North Channel dredging 'g LAND AND WATER If the applicant is not the landowner, also give the CHARACTERISTICS owner's name and address. dred a site - approx 2 acres n/a a. Size of entire tract aSu i f Sire-- annrny ' 9n arreS LOCATION OF PROPOSED PROJECT Street address or secondary road number southend of Queen glizahprh S reet 11, b. Size of Individual lot(s) n/a c. Elevation of tract above mean sea level or National Geodetic Vertical Datum spoil site 3' _ 5' d. Soil type(s) and texture(s) of tract spoil site - sandy loam - - e. Vegctationon tract n/a City; town, community, or landmark f _ Mant e o County Dare 1s proposed work widiin city limits or planning jurisdiction? ye s Name of body of water nearest project Shallowba- Bay DESCRIPTION AND PLANNED USE OF PROPOSED PROJECT 9. area to be used as Man-made features now on tract a spoil site is currently being used as a CAMA approved spoi What is the CAMA Land Use Plan Classification of site the site? (Consult the local land use plan.) Conservation Transitional X Developed Community Rural Other h. How is the tract zoned by local govenunent? n/a _ 1. How are adjacent waters classified? Describe all development activities you propose (for j. example, building a home, motel, marina, bulkhead, or pier). deepen area around Municipal •e1 for public boat dockage sC - Has a professional archaeological survey been carried out for the tract? No If so, by whom? 5 UPLAND DEVELOPMENT Complete this section if the project includes any land development. a. Type and number of buildings, facilities, or structures proposed NA b. Number of lots or parcels NA c. Density (Give the number of residential units and the units per acre.) NA d. Size of area to be graded or disturbed NA e. If the proposed project will disturb more than one acre of land, the Division of Land.Resources must receive an erosion and sedimentation control plan at least 30 days before land disturbing activity begins. If applicable, has a sedimentation and erosion control plan been submitted to the Division of Land Resources? NA f. Give the percentage of the tract within 75 feet of mean high water to be covered by impermeable surfaces, such as pavement, buildings, rooftops. NA g. List the materials, such as marl, paver stone, asphalt, or concrete, to be used for paved surfaces. NA h. If applicable, has a stormwater management plan been submitted to the Division of Environmeptal Management? NA I. Describe proposed sewage disposal and/or waste water treatment facilities. NA j. Have these facilities received state or local approval? NA k. Describe existing treatment facilities. NA 1. Describe location and type of discharges to waters of the state (for example, surface runoff, sanitary wastewater, industrial/commercial effluent, "wash down"). NA I in. Water supply source NA- n. If the project is oceanfront development. describe the steps that will be taken to maintain established public beach accessways or provide new access. NA o. If the project is on the oceanfront, what will be the elevation above mean sea level of the first habitable floor? NA 6 EXCAVATION AND FILL INFORMATION a. Describe below the purpose of proposed excavation or fill activities (excluding bulkheads, which are covered in Section 7). Access channel (MLW) or (NWL) east side Boat basin west side west of channel Other (break- water, pier, boat ramp, rock jetty) Fill placed in wetland or below MHW Upland fill areas Length Width Depth ZU5 225 90' 9' 120' Q b. Amount of material to be excavated from below water level in cubic yards 10, 000 - 15, Q00 c. Typeofmaterial ,.Fine mate'r.ial, silty sand d. Does the area to be excavated include marshland, swamps, or other wetlands? No e. High ground excavation, in cubic yards NA f Dimensions of spoil disposal area approximately 1375' x 275' g. Location tof spoil disposal area Balast Point Pirates Cove h. Do you claim title to the disposal area? No if not, attach a letter granting permission from the owner. i. Will a disposal area be available for future maintenance? If so, where? j. Does the disposal area include any marshland, swamps, or water areas? No k. 1. in. n. c. Shoreline erosion during preceding 12 months, in feet NA d. Type of bulkhead material NA e. Amount of fill, in cubic yards, to be placed below mean high water NA f. Type of fill material NA 8 ADDITIONAL INFORMATION In addition to the completed application form, the follow- ing items must be submitted: Will the fill material be.placed below mean high A copy of the deed (with state application only) or.other water? No instrument under which the applicant claims title to the Amount of fill in cubic yards 10, 000 - 15 , 000 affected property. If the applicant is not claiming to be the owner of said property, then forward a copy of the Type of fill material fine- material. m ilt y ganddeed or other instrument under which the owner claims title, plus written permission from the owner to cant' out Source of fill material Dredging project the project. o. Will fill material be placed on marsh or other wetlands? No p. Dimensions of the wetland to be filled NA q. How will excavated or fill material be kept on site and erosion controlled? Existing dike system (site currently in use for a different CAMA approved project) r. What type of construction equipment will be used (for example, dragline, backhoe, or hydraulic dredge)?_hWdrn,ji io drpdgp s. Wi11 wetlands be crossed in transporting equipment to project site? _N-o-- If yes, -explain steps that will be taken to lessen environmental impacts. 7 SHORELINE STABILIZATION a. Length of bulkhead or riprap NA b. Average distance waterward of mean high water or normal water level NA An accurate work plat (including plan view a4cross sectional drawings) drawn to scale in black ink ;on an 8 1/2 x 11 white paper. (Refer to Coastal Resources. Commission Rule 7J.0203 for a detailed description.) Please note that original drawings are preferred-and. only high quality copies will be accepted. Blue-line prints or other larger plats are acceptable only if 18 high quality copies are provided by applicant. (Contact the U.S. Army Corps of Engineers regarding that agency's use of larger drawings.) A site or location map is a part of plat requirements and it must be sufficiently detailed to guide agency personnel unfamiliar with die area to the site. Include county road (SR) numbers, landmarks, and the like. A stormwater management plan, if applicable, that may have been developed in consultation with the Division of Environmental Management. A list of the names and complete addresses of the adjacent waterfront (riparian) landowners. These individuals have 30 days in which to submit comments on the proposed project to the Division of Coastal Management and should be advised by the applicant of that opportunity. * Balast Point may be available for 2-5 years but then may have to seek maintenance alternati- such as trucking, or another site. Varrte. Harry Schif fman _ Address c/o Salty Dawg Marina 9 CERTIFICATION AND PERMISSION . Manteo. NC 27954 TO ENTER ON LAND lame Ray Hollowell address Renaissance Dev. Corp. P.O. Box 1411 Manteo, NC 27954 lame Buell and Janie Ke it h Address 1434 W 36th Street San Pedro CA 90731 Any permit issued in response to this application will allow only the development described in the application. The project will be subject to conditions and restrictions contained in the permit. I certify that to the best of my knowledge, the proposed activity complies with the State of North Carolina's ap- proved Coastal Management Program and will be con A list of previous state or federal permits issued for ducted in a manner consistent with such program. Nork on the project tract. Include permit numbers, . )ermittee, and issuing dates. I further certify that I am authorized to grant, and do in #100-80 NC Dent of Natural 1RQgmirCP- a14d fact, grant permission to representatives of state and Comm. Dev. and Coastal Resources Commission. federal review agencies to enter on the aforementioned 6/1/89 lands in connection with evaluating information related to this permit application and follow-up monitoring of A check for $100 made payable to the Department of , project. natural Resources and Community Development to :over the costs of processing the application. A signed AEC hazard notice for projects in oceanfront uid inlet areas. A statement on the use of public funds. If the project involves the expenditure of public funds, attach a state- ment documenting compliance with the North Carolina Environmental Policy Act (N.C.G.S. 113A-1 to 10). This is the day of X (?,. Landowner or Authorized agent r Sound Si 9 O ?. Y 7 7 O 6? _ .. s?., Light 7 U 3 2 1\ \ Town o-F /1IA?,feo 1 // w 6a? •?a?. ?.se CO- 40o c,E Qi w els .'.,3 .S• r`e J • Man Xc 0.1 .v L'. pew tt o / ?13 ?• • rv t1. \• . Y ?! ?? • of SY_in ar\\ s d`\ Baum oint a ? `?.• Light \? w s s !r •?ti?: to ABM Fly. 1YO u 7 ' 1 • •-?:: -?0?t % li /'; -? •: •,• :: e^? Ballast \ o . it „ s= ?II% , Q 'i?, l? li'. ? ? rt="??. •:? ??,."` .?. -.,. //?w? Point u? t`• 4 ? ??? .? /'? /v j 'w.,,•. Sand Point oLight 4 "?: ??a••. ?•? Sh/a'llo wbagBay ; ` \ ••?• Light s. •.:oy? e nl b Ijavel ali `i•• • '?6? •?ii? s r ', •% l • Wit - rl • ', Light Fields Manteo\ \ 1128 c ;;,' Site ? a r' ?1 ? y.w. 0 Turn., • ?\ w ` y...... _ Bow .... S .. 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