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HomeMy WebLinkAboutSW8931105_Historical File_19931220State of North Carolina Department of Environment, Health, and Natural Wilmington Regional Office James B. Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Jonathan B. Howes, Secretary December 20, 1993 Mr. Maurice S. Emmart, Jr. 99 Aqua Vista Drive Wilmington, North Carolina 28409 Resources Bob Jamieson Regional Manager Subject: CERTIFICATION OF COMPLIANCE with Stormwater Regulations Stormwater Project No. 931105 Greenbriar Subdivision, Phase III New Hanover County Dear Mr. Emmart: This Certification is pursuant to the application for Greenbriar Subdivision, Phase III received on November 2, 1993, with additional information received on December 20, 1993. Based on our review of the project plans and specifications, we have determined that the Greenbriar Subdivision, Phase III stormwater control system complies with the Stormwater Regulations set forth in Title 15A NCAC 2H.1003(i). The runoff will be treated in a detention pond sized to achieve 90 % reduction in Total Suspended Solids. Each of the 100 lots will be restricted to 5,775 square feet of built -upon area per lot. All proposed stormwater ponds, swales, and ditches shown as a part of the approved stormwater plans, must be constructed in their entirety, permanently vegetated or anchored, and operational for their intended purpose prior to construction of the impervious surfaces associated with the project, except roads, and prior to issuance of the Certificate of Occupancy. Any modification of the plans submitted to this Office or further development of this contiguous project will require an additional Stormwater Submittal/Modification and approval prior to initiation of construction, regardless of the fact that such modification may be less than one acre. Modifications include but are not limited to; project name changes, transfer of ownership, redesign of built -upon surfaces, addition of built -upon surfaces, redesign or further subdivision of the project area. This Certification shall be effective from the date of issuance until rescinded. The project shall be constructed and maintained in accordance with the plans and specifications approved by the Wilmington Regional Office. This Certification does not supersede any other permit or approval. The developer is responsible for obtaining any and all permits and approvals necessary for the development of this project. This could include the Division of Coastal Management under CAMA requirements, the Division of Environmental Management under Wetland 401 Water Quality Certification and/or a Dredge and Fill Permit and/or a Sewer Extension/Collection Permit, U.S. Army Corps of Engineers 404 Wetland Permit, NPDES Stormwater Permit if disturbing five acres or more, local County or Town Agency 127 Cardinal Drive Extension, Wilmington, N.C. 28405-3845 • Telephone 919-395-3900 0 Fax 919-350-2004 An Equal Opportunity Affirmative Action Employer Mr. Emmart December 20, 1993 Stormwatter Project No. 931105 -------------------------------------- permits under their local ordinances, or others that may be required. A professional engineer must certify that the stormwater system has been installed in accordance with the approved plans and specifications upon completion of construction. The attached certification should be received by this Office within 30 days of completion of construction. Deed restrictions, including the allowable built -upon area per lot, must be recorded with the Office of the Register of Deeds. A copy of the recorded deed restrictions including deed book number and page must be received in this Office within 30 days of the date of recording. If you have any questions concerning this matter, please call Mr. Greg Stuffs or me at (919) 395- 3900. Sincerely, Dave Adkins Water Quality Supervisor DA/ges: S:\WQS\STORMWAT\CERTIFIC\931105.DEC cc: Mr. Phillip G. Tripp, P.E., Andrew & Kuske Mr. Sky Conklin, New Hanover County Inspections Bradley Bennett Jim Craig, New Hanover County Greg Stuffs VVilmin on Regional Office Central Files A&K Proj. No. 93178 DIVISION OF ENVIRONMENTAL MANAGEMENT DENSITY ENGINEERED x PROJECT DATA Project Name Greenbriar Subdivision Phase III Location (County, Township/Municipality, Address, State Road) New Hanover County, near Masonboro Loop Road, SR 1492 Owner's Name Maurice S. E]nnart, Jr. MailingAddress 99 Aqua Vista Drive Wilmington, NC 28429 Phone Number 919-791-1713 Submittal Date.... Sept. 29, 1993 Brief Description (include map and appropriate drawings) 100 lot addition to existing single family residential subdivision Name of Water Body Receiving Stormwater Runoff unamed tributary to Mott Creek Classification of Water Body C SW Total Area of Project 61.66 acres State/Federal Permits/Approvals Required (Check appropriate blanks) CAMA Major, 404 Permit_ Other (Specify CALCULATION OF BUILT UPON AREA Sedimentation/Erosion Control x DEM/DHS Sewage Disposal Built upon area means that portion of a development that is covered by impervious or partially pervious cover including buildings, pavement, recreation facilities, gravel, etc., but not including wood decking. If the project includes areas draining to different water classifications, please note them separately STORMWATF0. Subwatershed Subwatershed Eck U V k Classification C—SW 1wJ Built upon area 18.353 ac �J Total Project Area 64. 6 ac NOV 0-2 } % Built upon Area 27.7% D E M Allowable B/U Area 30% Is the Project B/U Area 5 the Allowable B/U Area? yes (If no, an engineered system is required.) % Built upon area = (built upon area / total project area) * 100 Built upon area limits for projects to meet density: SA waters — 25%, Other — 30% STORMWATER COLLECTION SYSTEM Describe how the runoff will be treated Engineered system with piped collection ]BUFFER AREA Is the built upon area at least 30 feet from mean high water of all surface waters? YES If no, please provide a description (Note: Only boat ramps, public roads, public bridges, and walkways to water related facilities are allowed within 30 feet of the mean high water line if the project is intended to meet stormwater control requirements through density limits.) DEED RESTRICTIONS AND PROTECTIVE 'COVENANTS Do the deed restrictions and protective covenants ensure that subdivisions maintain development consistent with the plans and specificationsapprovedpproved by the Division and include the State as a beneficiary of the restrictions? YES Include a signed and notarized copy of the deed restrictions and covenants with this form. CERTIFICATION I, URICE S. EMMART TR , certify that the information included on this submittal form is correct, that the project will be constructed in conformance with this information, and that to the best of my knowledge, the proposed project complies with the requirements of 15 NCAC 2H.1003 (b). I also authorize the below named person or firm to submit stormwater plans on my behalf. Owner's Signature Please list authorized person or firm name and address below: Date Andrew & Kuske Consulting Engineers, Inc. 202 N. Fifth Ave. Wilmington, NC 28401 r/ I,aNotary Public for theStateof_r� , sonall County of c7z.v�� , do hereb certify that appeared before me this �_ day of 6e 7`— 1Sl•�S "� and acknowledges the due execution of the foregoing instrument. Witness my hand and official seali• JCL •••,••••���j ,, J1..••• * yQTAR-.% 3 _ _ My commission expires %/—1 7t'_� — s ei T •• v, : p U B L%Gj z = -ti9y� ....,. �a DIVISION OF ENVIRONMENTAL MZ4 SIGN -OFF Regional Office 121, 2. - R3 Date 11- 10 -'S3 Date ividual l* uating Forms/Plans Water Quality Supervisor cc: Applicant[WiRO/Bradley Bennett/Central Files Andrew & Kuske CONSULTING ENGINEERS, INC. STORMWATER MAINTENANCE SYSTEM MAINTENANCE PROCEDURES GREENBRIAR SUBDIVISION PAHSE III A&K PROJECT NO. 93178 John R. Andrew, J. A. Kuske, P� J. Phillip Norris, R! 1 . RESPONSIBLE PARTY STORIANA A. The project will be built and maintained b E C L B U II U Maurice S. Emmart, Jr. AFC �.� i993 99 Aqua Vista Drive Wilmington, NC 28409 ® E M 919-791-1713 -.01 # g3110$ 2. DETENTION POND AND COLLECTION SYSTEM A. The detention pond will be checked after every major storm event to insure that the outlet structure is working properly and is not clogged with debris. Remove any accumulated sediment or debris. Any signs of erosion or deterioration of the pond side slopes or any other feature must be'repaired before the next storm event. B. The depth of the pond will be checked every six months to determine the dept of the permanent pool. The pond will be cleaned out when silt deposits reduce the depth of the permanent pool below 5.5 feet. C. Collection basins and piping will be checked every six months and kept clear as necessary. 3. CERTIFICATION The owner will submit to the Department of Environment Health and Natural Resources an Engineer's Certification that the stormwater facilities were constructed in accordance with approved plans. Maurice'S.Emmart, Jr. title date NOTARY'S CERTIFICATI�OrN State of K County of I , , a' Notary Public in and for th State and County aforesaid, certify that ,zz- a , personally appeared before me this day and acknowledge he due execution of the foregoing instrument. ITNESS my hand and notarial seal, this the 121n;day o.fi`-', E &I, $•,,,� 1993. My Commission Expires: OTq���: z s N tary Public' Ge L `G 202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: 919/343-9653 o n Cl-- lap() Shoflotae. North Ccrclinc 28e5o Telephnne• 919J A&K PROJECT NO. 93178 GREENBRIAR SUBDIVISION PHASE III WILMINGTON, NORTH CAROLINA DEED RESTRICTIONS No more than 5,775 square feet of each lot in this phase of this property inclusive of right-of-ways shall be covered by structures and/or paved surfaces, including walkways or patios of brick, slate or similar materials, but specifically excluding walkways and decks of wood provided that such walkways and decks are constructed in such a manner as to allow stormwater runoff to infiltrate the soil beneath same. This covenant is intended to insure compliance with stormwater runoff rules heretofore adopted by the State of North Carolina and therefore benefits may be enforced by the State of North Carolina. cj�, n6��� /,,vj�T6LR Maurice S. Emmart, Jr. D u U 99 Aqua Vista Drive �I Wilmington, NC 28409 U !7�C ? 0 1993 NOTARY'S CERTIFICATION -10j a E M State of A •e - ,/ County of Yl A-4 I, 14'n"Z21 , a Notary Public in and for the State and County aforesaid, certify that ' , personally appeared before me this day and acknowledged a due execution of the foregoing instrument. ���c�suealai WITNESS my hand and notarial seal, this the �E M`S��'•; of O (2-7` 1993. w �,• My Commission Expires: otary Public ?� JAO i c, 14- V 8L1G = ti% ��''•;��FR CO�N�.•''. == Andrew & Kuske ��0` CONSULTING ENGINEERS, INC. December 17, 1993 N.C. Dept of Environment, Health & Natural Resources Health and Natural Resources Water Quality Section 127 Cardinal Drive Extension Wilmington, N.C. 28405-3845 Attn: Ms. Linda Lewis Environmental Engineer Re: Greenbriar Phase III Stormwater Management Plan Revisions A&K Project No. 93178 Dear Linda: This will revise our previous submittal in accordance with your December 10, 1993 correspondence. As per your comments we offer the following: John R. Andrew, P.E. J. A. Kuske, P.E. J. Phillip Norris, P.E. 1) The O&M plan has been revised to include 5.5 feet. 2) Red Snapper Court and Burning Tree Court have been added under the appropriate sections. 3) The original 105 lots include 5 lots where ponds are now proposed. Enclosed are revised deed restrictions giving the 100 lots with 5775 square feet of allowable impervious each. Totals and percentages will not change. Thank you for your assistance on this project. Sincerely, ANDREW & KUSKE CONSULTING ENGINEERS, INC. P-14EAO Phillip G. Tripp, P.E. PGT/ j me cc: Jack Stocks ' i iVI * " V "A R p E G k 0 W & �I DEC 2 0 1"3 U ?O� g31105 202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: 919/343-9653 Facsimile: 919/343-9604 P.O. Box 2889 Shallofte, North Carolina 28459 Telephone: 919/754-6900 q.STATEa y6 y,mw, State of North Carolina Department of Environment, Health, and Natural Resources Wilmington Regional Office James B' Hunt, Jr., Governor DIVISION OF ENVIRONMENTAL MANAGEMENT Bob Jamieson Jonathan B. Howes, Secretary Regional Manager December 10, 1993 Mr. Phil Tripp, P.E. Andrew and Kuske Engineers 202 North Fifth Avenue Wilmington, North Carolina 28401 Subject: ADDITIONAL INFFORMATION Stormwater Project No. 931105 Grreenbriar, Phase III New Hanover County Dear Mr. Tripp: The Wilmington Regional Office received a Stormwater Submittal for the Grreenbriar, Phase EII on November 2, 1993. A preliminary review of that information has determined that the submittal for the subject project is not complete. The following information is needed to continue the stormwater review: 1. The Operation and Maintenance Plan for the stormwater controls indicates that sediment removal is needed when the pond is less than 3 feet deep. For a 7.5 foot deep pond, this is not acceptable. Please change this to read sediment removal is needed when the measured depth is 75 % or less of the design depth. In this case, it will be around 5.5 feet. 2. There are no road cross sections indicated for Red Snapper Court or Burning Tree Road. 3. 105 lots are accounted for in the calculations, however, the plans show only 100 lots. Please clarify. 127 Cardinal Drive Extension, Arilmington, N.C. 28405-3845 • Telephone 910-395-3900 • Fax 910-350-2004 An Equal Opportunity Affirmative Action Employer Mr. Tripp December 10, 1993 Stormwater Project No. 931105 -------------------------------------- Please note that this request for additional information is in response to a preliminary review. The requested information should be received by this Office prior to January 10, 1993, or the submittal will be returned as incomplete. If you have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Ms. Linda Lewis Environmental Engineer DA/arl: S:\WQS\STORMWAT\ADDINFO\931105.DEC cc: (2) Linda Lewis Central Files WET DETENTION POND EVALUATION 1. Yes No The design storage is for the runoff from all impervious surfaces resulting from 1-inch of rainfall and is located above the permanent pool. 2. Yes No The permanent pool is designed for 90 % total suspended solid (TSS) removal. Therefore, no vegetative filter is required. 3. Yes No The runoff completely draws down to the permanent pool in 5 days, but not less than 2 days. 4. Yes No The mean depth of the permanent pool is a minimum of 3 feet. 5. Yes No The inlet structure is designed to minimize turbulence and short circuiting. 6. Yes No An appropriate operation and maintenance plan has been provided for the system. 7. Yes No THIS PROJECT MEETS THE STORMWATER CONTROL REQUIREMENTS OF 15A NCAC 2H.1003 (g), (i), (k), and (1) (For Yes, 1 through 7 must all be highlighted Yes.) Brief Explanation: This detention pond is designed to remove 90 % total suspended solids without the aide of a vegetative filter. DIVISION OF ENVIRONAIENTAL MANAGEMENT SIGN -OFF Wilmington Regional Office t2-2-q3 Date KIW J&M Individu aluating Form/Plans - 11- ',� -:�3 --- � -.r� Date Regional Water Quality Supervisor cc: Applicant/Bradley Bennett/ges/WiRO/CF -- Andrew & Kuske CONSULTING ENGINEERS, INC. October 25, 1993 N.C. Dept of Environment, Health & Natural Resources Health and Natural Resources Division of Environmental Management Water Quality Section 127 Cardinal Drive Extension Wilmington, N.C. 28405-3845 Attn: Ms. Linda Lewis Environmental Engineer Re: Greenbriar Subdivision Phase III Wilmington, NC Stormwater Management Plan A&K Project No. 93178 Dear Ms. Lewis: John R. Andrew, P.E. J. A. Kuske, P.E. J. Phillip Norris, P.E. OCT 2 6 1993 let Enclosed please find one print of the subject plan, calculations and stormwater maintenance schedule. We have also enclosed the name and address of the Owner. We have submitted the erosion control plan to New Hanover County for approval. Please review for approval and contact me should you have any questions or comments. Thank you for your assistance on this project. Sincerely, ANDREW & KUSKE CONSULTING ENGINEERS, INC. r Phillip G. Tripp, P.E. 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(-,tr.•EHE'a.�r�rt f HnSE � `73(78 , �owr+•r� !J Mt Z PPI oaAwa�,H A= � ,p z�h oAo e JcXrrv2L f.I (Ew/ 19.0) FLCLVn alx. re-cl, ZZ; 5 ) ILM%L 'Poop 4 l.000 Pow 1-7Z1 8W SK . w& (sue ' �! 17z1 a°D O,)TQ-r 6-T1WCT%jV L L' t Ll_ = zz,�IoosF Z:q, NSF C 3.5 ok FTC d(o o, o�aR FT' 4 Itz or�Nl�.ly 1i51wIC �' x�(j' Ol,T1ET �jliiuc?{rC{ _ Z Q = �•�SCI�.o� 17415 t 0,25(�.0� •44� Andrew & Kuske CONSULTING ENGINEERS, INC. STORMWATER MAINTENANCE SYSTEM MAINTENANCE PROCEDURES John R. Andrew, P.E. J. A. Kuske, P.E. J. Phillip Norris, P.E. GREENBRIAR SUBDIVISION PAHSE III A&K PROJECT NO. 93178 1. RESPONSIBLE PARTY A. The project will be built and maintained blqm Maurice S. Emmart, Jr. Q 99 Aqua Vista Drive U Wilmington, NC 23409 NOV 0 2 M 919-791-1713 D E M 2. DETENTION POND AND COLLECTION SYSTEM -'ZOJ # CIS 110 A. The detention pond will be checked after every major storm event to insure that the outlet structure is working properly and is not clogged with debris. Remove any accumulated sediment or debris. Any signs of erosion or deteri. ation of the pond side slopes or any other feature must be repairer before the next storm event. B. The depth of the pond will be checked every six months to determine the dept of the permanent pool. The pond will be cleaned out when silt deposits reduce the depth of the permanent pool below three (3) feet. C. Collection basins and piping will be checked every six months and kept clear as necessary. 3. CERTIFICATION The owner will submit to the Department of Environment Health and Natural Resources an Engineer's Certification that the stormwater facilities were constructed in accordance with approved plans. Maurice S.Emmart, Jr. title id -/9-53 date NOTARY'S CERTIFICATION State of K County of I, a Notary "Public the State and County aforesaid, certify that personally appeared before me this day acknuwledged7the due execution of the foregoing. instrument. ITNESS my hand and notarial seal, this the ���day 1993. My Commission Expires: v 0 -//— /!=4 --� k N tary Pub is 202 North Fifth Avenue Wilmington, North Carolina 28401 Telephone: 919J343-9653 in and for and u t� p 0 Boy 2880 Shallotte, North Carolina ?_8459 Telephone: 919J7 .;10. 0 A&K PROJECT NO. 93178 GREENBRIAR SUBDIVISION PHASE III WILMINGTON, NORTH CAROLINA DEED RESTRICTIONS No more than 5,500 square feet of each lot in this phase of this property inclusive of right-bf-ways shall be covered by structures and/or paved surfaa`c es, including walkways or patios of brick, slate or similar materials, but specifically excluding walkways any: decks of wood provided that such walkways and decks are constructed in such a manner as to allow stormwater,`wrunoff to infiltrate the soil beneath same. This covenant is intended to insure compliance with stormwate,r runoff rules heretofore adopted by the State of North Ca.-ol i na and therefore benefits may be en of reed by the State cf North Carolina. sluo"I"'Mwe TMA- Maurice S. Emmart, Jr. D E C E I V 99 Aqua Vista Drive Ij Wilmington, NC 28409 �JJ NOV 0 2 1995 NOTARY'S CERTIFICATION DE M �oY a31(05 State of•�- County of I, a Notary Public in and fo Ehe State and County aforesaid, certify that MQ-AZ'e— , personally appeared before me this day and acknowledged the due execution of the foregoing instrument. ��a�,maeeeefgeo�,, WITNESS my hand and notarial seal, this the VLE` �•'••, My Commission Expires: z ary Public . : P :ma's ®LIG Jrsc,=