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HomeMy WebLinkAboutSW8061028_HISTORICAL FILE_20061207STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. swe I DOC TYPE ❑CURRENT PERMIT ❑ APPROVED PLANS HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE ?l/�/�1nI YYYYMMDD STATE OF NORTH CAROLINA Department of Environment and Natural Resources WIRO Regional Office FILE ACCESS RECORD �j Q SECTION �SWP T DATEITIME /P� NAME c iA ���!��d REPRESENTINGU/�>��-S���G Guidelines for Access The staff of the Regional Office is dedicated to making public records in our custody readily available to the public for review and copying We also have the responsiblhty to the public to safeguard these records and to carry out our day-to-day program obligations Please read carefully the following before signing the form 1 Due to the large public demand for fie access, we request that you call at least a day in advance to schedule an appointment for file review so you can be accommodated Appointments are scheduled between 9 00 a m and 3 00 p m_ Viewing time ends at 4 45 p m Anyone arriving without an appointment may view the files to the extent that time and staff supervision are available 2 You must specify files you want to review by facility name or incident number, as appropriate The number of files that you may review at one appointment will be limited to five 3 You may make copies of a file when the copier is not in use by the staff and if time permits There is no charge for 25 or less copies , cost per copy after the initial 25 is 2 5_per copy Payment is to be made by check, money order, or cash in the administrative offices 4 Files must be kept in the order you received them Files may not be taken from the office No bnefcases, large totes, etc are permitted in the file review area To remove, alter, deface, mutilate, or destroy material in public files is a misdemeanor for which you can be fined up to $500 00 5 In accordance with GS 25-3-512, a $25 00 processing fee will be charged and collected for checks on which payment has been refused 6 The customer must present a photo ID, sign -in, and receive a visitor sucker prior to reviewing files FACILITY NAME 1 3 X/// An e e__ Ci e .0.: : e2 .J Signature/ ame of Firm or smess Date (Please attach business caul to form if available) # Copes a Amt Pd COUNTY .0 r�z v.5 Time In Time Out I wArF9 QG Mary Ann Peterson Alliance Credit Union 3315 Almaden Expressway, Suite 55 San Jose, CA 95118 Dear Ms Peterson Michael F Easley, Governor William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Alan W Klimek, P E , Director Division of Water Quality December 7, 2006 Subject REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No SW8 061028 Alliance Credit Union New Hanover County The Division of Water Quality's Stormwater Permitting Unit received a Stormwater Management Permit Application for Alliance Credit Union on October 5, 2006 and additional information on December 4, 2006 A preliminary review of the package indicates that additional information is required to complete processing this permit application Please address the following items Please submit revised calculations for the sizing of the discharge orifice in order to provide the discharge of the 1" stormwater volume at the maximum driving head within the 2-day to 5-day period Please also revise the orifice on the drawing Per our discussion, the maximum driving head is determined from the next available outlet above the orifice at the permanent pool Please note this request for additional information is in response to a preliminary review The information and should be received in our office by December 14, 2006, or the application will be returned as incomplete The return of a project will necessitate resubmittal of all required items, including the application fee If you need additional time to submit the information, please marl or fax your request for a time extension to the Division at the address and fax number on the bottom of this letter The request must indicate the date by which you expect to submit the required information The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation and Erosion Control Plan, is a violation of NCGS 143-215 1 and is subject to enforcement action pursuant to NCGS 143-215 6A %hCaro aturar North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733 -70 15 Customer Service Internet h2o enr state ne us 512 N Salisbury St Raleigh, NC 27604 FAX (919) 733-2496 1 877-623-6748 An Equal Opportunity/Affirmative Action Employer— 50% Recycledll0% Post Consumer Paper Ms Mary Ann Peterson Alliance Credit Union, Application No SW8 061028 Additional Information Request December 7, 2006 Please reference the State assigned project number on all correspondence Original documents must be provided, copies are not acceptable If you have any questions concerning this matter, please contact me at (919) 733-5083, extension 376 Since el Kelly Johnson Environmental Engineer cc L-inda-Lewis; DWQ Wilmington Regional Office , Cameron Weaver, DWQ Wilmington Regional Office Ken Pickle, DWQ Central Office Stormwater Permitting Unit File SW8 061028 Mark T Arcuri, Criser Troutman Tanner Consulting Engineers Central Files State Stormwater Management Systems Permit No SW8 061028 STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT HIGH DENSITY DEVELOPMENT In accordance with the provisions of Article 21 of Chapter 143, General Statutes of North Carolina as amended, and other applicable Laws, Rules, and Regulations PERMISSION IS HEREBY GRANTED TO Mary Ann Petersen, Alliance Credit Union Alliance Credit Union 5620 Carolina Beach Road, Wilmington, New Hanover County FOR THE construction, operation and maintenance of a wet detention pond in compliance with the provisions of 15A NCAC 2H 1000 (hereafter referred to as the "stormwater rules') and the approved stormwater management plans and specifications and other supporting data as attached and on file with and approved by the Division of Water Quality and considered a part of this permit This permit shall be effective from the date of issuance until December 18, 2016, and shall be subject to the following specified conditions and limitations I. DESIGN STANDARDS 1 This permit is effective only with respect to the nature and volume of stormwater described in the application and other supporting data 2 This stormwater system has been approved for the management of stormwater runoff as described in Section 16 on page 3 of this permit The stormwater control has been designed to handle the runoff from 36,001 square feet of impervious area 3 All stormwater collection and treatment systems must be located in either dedicated common areas or recorded easements The final plats for the project will be recorded showing all such required easements, in accordance with the approved plans 4 The runoff from all built -upon area within the permitted drainage area of this project must be directed into the permitted stormwater control system Page 2 of 7 State Stormwater Management Systems Permit No SW8 061028 5 The following design criteria have been provided in the wet detention pond and must be maintained at design condition a DrainaArea, 9cres gnsite, 1 26 ft2 54,918 Offsite, ft 0 b Total Impervious Surfaces, ft2 36,001 c Design Storm, inches 1 d Pond Depth, feet 35 e TSS removal efficiency 90% f Permanent Pool Elevation, FMS,� 245 g Permanent Pool Surface Areq, ft 4,141 h Permitted Storage Volume, ft 26,354 1 Temporary Storage Elevation, FMSL 2813 i Controlling Orifice 0 5" 0 pipe k Permitted Forebay Volume, ft3 871 1 Receiving Stream/River Basin Mott Creek 1 Cape Fear Basin m Stream Index Number 18-82 n Classification of Water Body "C-SW" II. SCHEDULE OF COMPLIANCE 1 The stormwater management system shall be constructed in its entirety, vegetated and operational for its intended use prior to the construction of any built -upon surface 2 During construction, erosion shall be kept to a minimum and any eroded areas of the system will be repaired immediately 3 The permittee shall at all times provide the operation and maintenance necessary to assure the permitted stormwater system functions at optimum efficiency The approved Operation and Maintenance Plan must be followed in its entirety and maintenance must occur at the scheduled intervals including, but not limited to a Semiannual scheduled inspections (every 6 months) b Sediment removal c Mowin,9 and revegetation of slopes and the vegetated filter d Immediate repair of eroded areas e Maintenance of all slopes in accordance with approved plans and specifications f Debris removal and unclogging of outlet structure, orifice device, flow spreader, catch basins and piping g Access to the outlet structure must be available at all times 4 Records of maintenance activities must be kept and made available upon request to authorized personnel of DWQ The records will indicate the date, activity, name of person performing the work and what actions were taken 5 Upon completion of construction, prior to issuance of a Certificate of Occupancy, and prior to operation of this permitted facility, a certification must be received from an appropriate designer for the system installed certifying that the permitted facility has been installed in accordance with this permit, the approved plans and specifications, and other supporting documentation Any deviations from the approved plans and specifications must be noted on the Certification A modification may be required for those deviations Page 3 of 7 State Stormwater Management Systems Permit No SW8 061028 6 Decorative spray fountains will be allowed in the stormwater treatment system, subject to the following criteria a The fountain must draw its water from less than 2' below the permanent pool surface b Separated units, where the nozzle, pump and intake are connected by tubing, may be used only if they draw water from the surface in the deepest part of the pond c The falling water from the fountain must be centered in the pond, away from the shoreline d The maximum horsepower for a fountain in this pond is 118 horsepower 7 The facilities shall be constructed as shown on the approved plans This permit shall become voidable unless the facilities are constructed in accordance with the conditions of this permit, the approved plans and specifications, and other supporting data 8 If the stormwater system was used as an Erosion Control device, it must be restored to design condition prior to operation as a stormwater treatment device, and prior to occupancy of the facility 9 Access to the stormwater facilities shall be maintained via appropriate easements at all times 10 The permittee shall submit to the Director and shall have received approval for revised plans, specifications, and calculations prior to construction, for any modification to the approved plans, including, but not limited to, those listed below a Any revision to any item shown on the approved plans, including the stormwater management measures, built -upon area, details, etc b Project name change c Transfer of ownership d Redesign or addition to the approved amount of built -upon area or to the drainage area e Further subdivision, acquisition, lease or sale of all or part of the project area The project area is defined as all property owned by the permittee, for which Sedimentation and Erosion Control Plan approval or a CAMA Major permit was sought f Filling in, altering, or piping of any vegetative conveyance shown on the approved plan 11 The permittee shall submit final site layout and grading plans for any permitted future areas shown on the approved plans, prior to construction 12 A copy of the approved plans and specifications shall be maintained on file by the Permittee for a minimum of ten years from the date of the completion of construction 13 The Director may notify the permittee when the permitted site does not meet one or more of the minimum requirements of the permit Within the time frame specified in the notice, the permittee shall submit a written time schedule to the Director for modifying the site to meet minimum requirements The permittee shall provide copies of revised plans and certification in writing to the Director that the changes have been made Page 4 of 7 State Stormwater Management Systems Permit No SW8 061028 III. GENERAL CONDITIONS This permit is not transferable except after notice to and approval by the Director In the event of a change of ownership, or a name change, the permittee must submit a formal permit transfer request to the Division of Water Quality, accompanied by a completed name/ownership change form, documentation from the parties involved, and other supporting materials as may be appropriate The approval of this request will be considered on its merits and may or may not be approved The permittee is responsible for compliance with all permit conditions until such time as the Division approves the transfer request 2 Failure to abide by the conditions and limitations contained in this permit may subject the Permittee to enforcement action by the Division of Water Quality, in accordance with North Carolina General Statute 143-215 6A to 143-215 6C 3 The issuance of this permit does not preclude the Permittee from complying with any and all statutes, rules, regulations, or ordinances, which may be imposed by other government agencies (local, state, and federal) having jurisdiction 4 In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the Permittee shall take immediate corrective action, including those as may be required by this Division, such as the construction of additional or replacement stormwater management systems 5 The permittee grants DENR Staff permission to enter the property during normal business hours for the pur ose of inspecting all components of the permitted stormwater management facility 6 The permit may be modified, revoked and reissued or terminated for cause The filing of a request for a permit modification, revocation and reissuance or termination does not stay any permit condition 7 Unless specified elsewhere, permanent seeding requirements for the stormwater control must follow the guidelines established in the North Carolina Erosion and Sediment Control Planning and Design Manual 8 Approved plans and specifications for this project are incorporated by reference and are enforceable parts of the permit 9 The permittee shall notify the Division in writing of any name, ownership or mailing address changes within 30 days Permit issued this the 18t�' day of December 2006 NORT TAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION ' , ijzz V for Alah -Klimek,-Director Division of Water Quality By Authority of the Environmental Management Commission Page 5 of 7 ® USAAirbill TNT 841836365592 Express raw.w rcae�r�Arc ea. ressnr - `„,. a Senders �' Name Phone I{" Company Address A tR CrIl StateNIC ZIP 2 Your Ilftemal Billing Irence 3 To Rump orrIs f t F li / �I ! 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this service if any is paid by us Money -Back Guarantee In the event of untimely delivery Federal Express will atyour request and with some limitations refund or credit all transportation charges See current Service Guide for more information i 3 Pirt•1576111751fi72 iiC" iypl Linda Lewis DWQ Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405-2845 Dear Ms Lewis enc Michael F Easley, Governor William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Alan W Klimek, P E , Director Division of Water Quality December 14, 2006 ��rC OEC1S Subject RETURN OF PROJECT FILE Stormwater Project No SW8 061028 Alliance Credit Union New Hanover County I have enclosed the application package for this project Sincerely, Kelly Jo on Environmental Engineer I Correspondence with the applicant 2 Narrative and calculations 3 Applications 4 Plans (5 sets total) December 13, 2006 (2), December4, 2006 (2), and October 5, 2006 (1) 5 Other information (drainage area map, copy of their add -info check, and the LLC information they provided prior to their decision not to apply as an LLC) qathCam)) llWl�a North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Internet h2o enr state nc us 512 N Salisbury St Raleigh, NC 27604 FAX (919) 733-2496 1-877-623 6748 An Equal oppoduniWAihnoative Action Employer— 60% Recycled110% Post Consumer Paper p@-- -�\�F [I DEC 1 3 2QO6 DENR - WATER W. Ty Wetlands 8 Slam.weler &jrn h STORMWATER NARRATIVE AND CALCULATIONS Project ALLIANCE CREDIT UNION AT MONKEY JUNCTION Location 5620 Carolina Beach Road (US Hwy 421) Wilmington, North Carolina New Hanover County Prepared for KDA Holdings 350 Franklin Road Marietta, GA 30067 Prepared by Mark T Arcuri, PE Robert D Patterson, El Criser Troutman Tanner Consulting Engineers 3809 Peachtree Avenue Suite 102 Wilmington, NC 28403 l Revised Revised Date September 26, 2006 Revised November 1, 2006 December 1, 2006 — DWQ Comments December 11, 2006 — DWQ Comments CTT Job 5724 - t>6c ' I ! ZW6 TABLE OF CONTENTS Narrative 1 Drainage Area Exhibit 2 Stormwater Plan View 3 10 Year Piping Calculations 4-8 25 Year Piping Calculations 9 - 13 50 Year Piping Calculations 14 - 18 100 Year Piping Calculations 19 - 23 Pond Routing Calculations 24 - 55 NCDENR Stormwater Calculations 56 - 57 Erosion Control Calculations 58 - 61 z STORMWATER NARRATIVE GENERAL The Owner wishes to construct an Alliance Credit Union at Monkey Junction in Wilmington, North Carolina Total property is approximately 2 03 acres It is bounded to the north by existing commercial properties, to the east by a service road and Carolina Beach Road (US HWY 421), to the south by existing commercial properties, and to the west by existing residential properties The site drains into existing public drainage easements to the north and east This is for a new permit EXISTING SITE FEATURES Currently, the site is undeveloped, and covered by existing vegetation and sparse tree cover There is also a short existing driveway into the property that will be removed PROPOSED GENERAL IMPROVEMENTS An Alliance Credit Union will be built with parking and landscaping Ingress and egress will be by two driveways via the existing drive to the north PROPOSED STORMWATER IMPROVEMENTS Stormwater for the Alliance Credit Union will consist of a wet detention pond with forebay A storm sewer system will be used to pipe the runoff to the pond This system is designed for the 25-year event, and analyzed for the 100-year event within the system The pond and storm sewer is designed in accordance with the New Hanover County Standards Since the Alliance Credit Union will be connecting to City domestic water system, the pond and storm sewer also meets the design standards for the City of Wilmington Erosion control will consist of using the detention pond for sediment storage Also, silt fence will be used to protect against erosion A gravel construction entrance will be provided at both of the driveways vv � " rf GRO"E F s �1R1l7 Qf GIST-URBANC �►i iJ •� Q9 E 3lFP ^R�13 f. pa irrY i_itSG i3�e'i ?�/► :&� $p14 7$ wGftir 'N" r iE5 � FENCE y� SMV jt`r2 'S s` (j S � Q ` �' r r�r\ -• �` � ��to� � .5n�., N3=38 2S"� , � �6�� � � � � * �+ S� �y �.? �F ��-�'+}\ +° �S �1� � '� Z1, zo I PO 4R V n r0F FR �2 I PAW ?f.RKt;E 31, SSL SPCX A FOR gAp �oac `5 2 NOTE AM' � � ¢31� 70 1N V y 3 ?.,ram ji50P EL 29 4 T, 1 j ( '.'_•'2 c' x' P fr �� z '" Y n�r� P ,� � i� " �� �� i � �f �^� � �1 �" c- � t.s Pu.'c ,�Pn�E � nss`A,, � �� ;' a► r 4 (fi � 1 r� ��r-�r`S�rr'A�fL`Tc�' �•r E ` / s i yJ 1✓ / �120 f T "Ic �P.-Vol X 52 \•3 L �32 ` , yR t a rCIV(f ar �?.1 015 cre aav z� 32 7[s F� `ai �, '6' N ass ve prof rs�' peg` ID JD % / �,?yp jy 11 " H1 J}St r S JT •rW S 4 � 2{T�a * a 32 3tt$ 14 arx��• Mgt � raPu+F �, � 2�` w.a �� i� a 5R BF. 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VATrit QUAwT Y = 2.) e.F Q = CA Z.�h = o•SZ (0.�2�3z.,2j 3.b 3 O, of o & cPrS t:� 9H7 r 3,�5' �i4YS 51T 2 A w?> S 7PA Ys A 57 Stage Storage Revised 11/28/06 Pond Invert 21 00 ft Revised 12/1106 Perm Pool 24 50 ft Revised 12/11/06 Forebay CONTOUR INCR ACCUM CONTOUR AREA VOL VOL [sq ft] [cu ft] [cu ft) 21 00� `49 0 0 bottom 2200 137 93 93 2300 *2611 199 292 2400 A 421 341 633 2450 �1� ,��k�531 238 871 perm pool Main Pond CONTOUR INCR ACCUM CONTOUR AREA VOL VOL [sq ft] [cu ft] [cu ft] 21 00 , to FM�9, 50 �� 0 0 bottom 2200 22 146 146 2300 740 491 637 2400 a `tt� 2390 1,565 2,202 24 50 i5� 9 { 36i0 1,500 3,702 perm pool 20% of Total= 915 cf Forbay % = 19 871 = 19% 871 + 3702 Total Pond CONTOUR INCR ACCUM CONTOUR AREA VOL VOL [sq ft] [cu ft] [cu ft) 21 00 99 0 0 bottom 2200 Y 'c' `37f9 239 239 23 00 k,1001 690 929 2400 x 2811 1,906 2,835 2450 41,41 1,738 4,573 perm pool 25 00 ' ,; Y,4988 2,282 6,855 2600 xq6635 5,812 12,667 2700 �z,��yK8399 7,517 20,184 2800 `],°103614 9,380 29,564 2813 0606 1,363 30,927 temp pool 2900 c� �w12486 10,046 40,972 29 40 a, 14342 5,366 46,338 top 354 cf C R 1 S E R TROUTMAN TANNER December 13, 2006 Kelly Johnson NCDENR Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Re Review Comments dated December 7, 2006 SW8 061028, Alliance Credit Union, New Hanover County Ms Johnson, The following are our responses to your above referenced comments and phone conversation Please find enclosed revised calculations, revised application pages, and revised sheets C101, C102, C2 01 and C2 02 1 Please seepage 56 of the calculations for the revised drawdown calculation In order to drawdown the 1" stormwater volume at the max driving head between 2 and 5 days, the discharge orifice was reduced to 1/2 inch from the original 2 inch orifice This caused us to slightly raise the primary weir elevation from 28 1' to 28 13' Please do not hesitate to contact me at 919-277-0494, rpatterson@cttengineering com with any more questions or concerns regarding this project Sincerely, CRISER TROUTMAN TANNER CONSULTING ENGINEERS Robert D Patterson, E I Project Engineer Intern ,�+ t}f W�rprFR UIl3Ai.lT' ,f eUands a -"40 aTar Branch i CRISER TROUTMAN TANNER CONSULTING ENGINEERS WILMINrfTON NC RALEIGH NC 2840 Plaza Place Suite 103 Raleigh NC 27612 1 p 919 277 0494 r 919 277 0495 cttengineenng com C R I IS E R TROUTMAN TANNER TRANSMITTAL LETTER TO FROM Kelly Johnson Robert D Patterson, El COMPANY DATE NCDENR, Division of Water Quality 12/13/06 ADDRESS CTT S PROJECT NUMBER 512 N Salisbury Street 572401 Raleigh, NC 27604 PHONE NUMBER CLIENT S REFERENCE NUMBER 919-733-7015 RE SW8 061028, Alliance Credit Union, New Hanover County WE TRANSMIT X ATTACHED ❑ UNDER SEPARATE COVER X HAND CARRIED BY RDP ❑ UPS/FEDEX THE FOLLOWING ❑TRACINGS ❑PRINTS ❑ INSPECTION REPORT ❑ SHOP DRAWINGS ❑ SPECIFICATIONS X OTHER COPIES DATE SHEET NO DESCRIPTION REMARKS 1 12/11/06 Letter of Responses to Comments 2 12/11/06 Revised Application, Supplemental Pages 1 & 3 1 12/11/06 Revised Narrative & Calculations 2 11/30/06 C101 Demo Plan & Site Layout and Utility Plan 2 12/11/06 C102 Grading, Erosion Control and Stormwater Plan 2 12/11/06 C2 01 Site and Utility Details 2 12/11/06 C2 02 Erosion Control & Stormwater Details NO1 L S/COMMI-NTS �uW$1tI48Zwo1S SSpuegeM Aillyno 8131dM - INBQ �otic � I �3a by CRISER TROUTMAN TANNER CONSULTING ENGINEERS WILMINGTON, NC RALEIGH, NC 2640 Plaza Place, Suite 103 Releigh, NC 27612 I p 919 277 0494 19192770495 ctianginaering cam wA TE9 Q YE. Linda Lewis DWQ Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405-2845 Dear Ms Lewis Michael F Easley, Governor William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Alan W Klimek, P E , Director Division of Water Quality December 7, 2006 Subject ADDITIONAL INFORMATION CHECKS I have enclosed two checks from the Add Information letters from the subject projects for the amounts noted below Stormwater Project No SW8 061002 Roosevelt Beach Carteret County $1,000, Check Number 1593 from GLIC, LLC Stormwater Project No SW8 061028 Alliance Credit Union New Hanover County $2,000, Check Number 45447 from KDA Holdings Sincerely, �p— Kelly Johnson Environmental Engineer Enc Two (2) Checks cc Cameron Weaver, DWQ Wilmington Regional Office Ken Pickle, DWQ Central Office Stormwater Permitting Unit File SW8 061002 Stormwater Permitting Unit File SW8 061028 Central Files Npr Carohna Aatura!!y North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Internet h2o enr state nc us 512 N Salisbury St Raleigh, NC 27604 FAX (919) 733-2496 1 877-623-6748 An Equal Opportunity/Affirmative Acton Employer— 50% Recycled110% Post Consumer Paper 7 of W arFR r� _co ❑ `C Mary Ann Peterson Alliance Credit Union 3315 Almaden Expressway, Suite 55 San Jose, CA 95118 Dear Ms Peterson Michael F Easley, Governor William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources Alan W Klimek, P E , Director Division of Water Quality December 7, 2006 Subject REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No SW8 061028 Alliance Credit Union New Hanover County The Division of Water Quality's Stormwater Permitting Unit received a Stormwater Management Permit Application for Alliance Credit Union on October 5, 2006 and additional information on December 4, 2006 A preliminary review of the package indicates that additional information is required to complete processing this permit application Please address the following items Please submit revised calculations for the sizing of the discharge orifice in order to provide the discharge of the 1" stormwater volume at the maximum driving head within the 2-day to 5-day period Please also revise the orifice on the drawing Per our discussion, the maximum driving head is determined from the next available outlet above the orifice at the permanent pool Please note this request for additional information is in response to a preliminary review The information and should be received in our office by December 14, 2006, or the application will be returned as incomplete The return of a project will necessitate resubmittal of all required items, including the application fee If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number on the bottom of this letter The request must indicate the date by which you expect to submit the required information The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation and Erosion Control Plan, is a violation of NCGS 143-215 1 and is subject to enforcement action pursuant to NCGS 143-215 6A I� Caro A�na ra- 0!y North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Intemet h2o enr stale nc us 512 N Salisbury St Raleigh, NC 27604 FAX (919) 733-2496 1-877-623-6748 An Equal OppodundylA>firmative Action Employer— 50% Recycledll0% Post Consumer Paper T*s Mary Ann Peterson Alliance Credit Union, Application No SW8 061028 Additional Information Request December 7, 2006 Please reference the State assigned project number on all correspondence Original documents must be provided, copses are not acceptable If you have any questions concerning this matter, please contact me at (919) 733-5083, extension 376 Since 'el Kelly Johnson Environmental Engineer cc Linda Lewis, DWQ Wilmington Regional Office Cameron Weaver, DWQ Wilmington Regional Office Ken Pickle, DWQ Central Office Stormwater Permitting Unit File SW8 061028 y Mark T Arcun, Criser Troutman Tanner Consulting Engineers Central Files of r NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY WETLANDS AND STORMWATER BRANCH 1617 MAIL SERVICE CENTER RALEIGH, NC 27699-1617 FAX 919-733-9612 PHONE 919-733-5083 TELECOPY TO FAX NUMBER q�p �g-j 2gi 1 FROM PHONE C\Va 933 SOB3,3 W o # OF PAGES INCLUDING THIS SHEET 3 COMMENTS ry tLL Im C A 1 8 E A TROUTMAN TANNER TRANSMITTAL LETTER 11 TO FROM KELLY JOHNSON Mark T Arcun, PE COMPANY DATE NCDENR 12-5-06 ADDRESS CTT S PROJECT NUMBER 512 North Salisbury Street 5724.01 Raleigh, NC 27604 PHONE NUMBER CLIENTS REFERENCE NUMBER 919-733-7015 RE Alliance Credit Union r WETRANSMff ❑ATTACHED ❑UNDER SEPARATE COVER ❑HAND CARRIED BY ❑UPS/FEDEX THE FOLLOWING ❑ TRACINGS ❑ PRINTS ❑ INSPECTION REPORT ❑ SHOP DRAWINGS ❑ SPECIFICATIONS ❑ OTHER COPIES DATE SHEET NO DESCRIPTION REMARKS 1 ORIG PERMIT FEE NOTES/COMMENTS by ML �rn IN Ik o 4p r G two 1�'�"4 AA,011, - --A-. CRISER TROUTMAN TANNER CONSULTING ENGINEERS Post Office Sax 3727 Wilmington NC 28406 1 3809 Peachtree Ave Suite 102 Wilmington NC 28403 p 910 397 2929 f 910 397 2971 C R I S E R TROUTMAN TANNER December 4, 2006 DEC 0 4 9W' Kelly Johnson NCDENR Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Re Review Comments dated November 27, 2006 SW8 061028, Alliance Credit Union, New Hanover County Ms Johnson, The following are our responses to your above referenced comments received via fax on November 27, 2006 Please find enclosed revised narrative and calculations, letters requiring Alliance Credit Union in NC, revised application page, and revised sheets C101, C102 and C2 02 1 Please see the enclosed letters from the States of North Carolina and California regarding Alliance Credit Union operating in North Carolina There are already 3 other Alliance Credit Unions existing in New Hanover County 2 The plan lists the total impervious area for the whole site, but some of this impervious area could not be directed to the pond This is why the pond calculations show less impervious area than that listed in the table on C102 The drainage area of the pond did include the area of the pond for a total of 126 acres (see page 2 of the calcs) 3 The missing volumes have been added to the revised application page 1 of the wet detention supplement The dimensions of the permanent pool contour (el 24 5') are included in the revised plans 4 The vegetation for the wet pond was indicated on sheet C2 02 above the pond cross- section 5 The pond has been revised to have a 10' wide 6 1 vegetative shelf The average width of the perm pool from inlet to outlet is 20' and the average length is 170', yielding a length to width ratio of 8 5 1 6 The table of elevations, areas, incremental volumes, and accumulated volumes for the pond was included on pages 15 and 35 Asper your subsequent request, we have shown the table from invert all the way to top of pond on page 57 of the calculations CR19ER TROUTMAN TANNER CONSULTING ENGINEERS WILMINGTON NC RALEIGH, NC 2840 Plaza Place Suite 103 Raleigh NC 27812 I p 919 277 0494 1919 277 0495 cttenglneenng cam dr 4 FI AUO ia-2 AO. M1.319 •i:v7r4 rtiRvm+r ? 4Pbm 'W Ally Johnson December 4, 2006 Page 2 of 2 7 A note regarding the size of the openings of the outlet structure grate (<_ 4") has been added to the Outlet Structure Detail on sheet C2 02 We note your request for an additional $2,000 and we are speaking to Cameron Weaver in Wilmington concerning that Please do not hesitate to contact meat 919-277-0494, rpatterson@cttengineering com with any more questions or concerns regarding this project Sincerely, CRISER TROUTMAN TANNED CONSULTING ENGINEERS 4J 4 P. te 09A � Robert D Patterson, E I Project Engineer Intern r�qC A 1 6 E R TRf]IITMAN T ANN 6 R TRANSMITTAL LETTER �L�C�C�I�IC�fD I DEC 0 4 900k Nib _wart=R n � C R 1 S E R TROUTMAN T A N N E R To Kelly Johnson Robert D Patterson, El COMPANY DATE NCDENR - Division of Water Quality 12/4/06 ADDRESS CTT S PROJECT NUMBER 512 N Salisbury Street (27604) 5724 1617 Mad Service Center Raleigh, NC 27699-1617 PHONE NUMBER CLIENTS REFERENCE NUMBER 919-733-7015 RE Permit # SW8 061028, Alliance Credit Union Response to Comments WETRANSMIT XATrACHED ❑UNDER SEPARATE COVER XHAND CARRIED BY,,,RDP ❑UPS/FEDEX THE FOLLOWING ❑TRACINGS ❑ PRINTS ❑ INSPECriON REPORT ❑ SHOP DRAWINGS ❑ SPECIFICATIONS X OTHER COPIES DATE SHEET NO DESCRIPTION REMARKS 1 12/4/06 Letter of Responses to Comments 2 Application Page 1 of Supplement Revised 1 7/31/00 NC Credit Union Letter 1 page 11 6/28/00 CA Financial Institution Package 46 pages 1 12/1/06 Stormwater Narrative & Calculations Revised 2 11/30/06 C101 Demo Plan & Site Layout and Utility Plan Revised 2 12/1/06 C102 Erosion Control and Stormwater Plan Revised 2 11/30/06 C2 01 Site and Utility Details 2 12/1/06 C2 02 Erosion Control & Stormwater Details Revised NO I S/COMMI.NTS CRISER TROUTMAN TANNER CONSULTING ENGINEERS WILMINGTON, NO RALEIGH, NO 2840 Plaza Place, Suite 103 Raleigh, NC 27812 I R 919 277 0494 1919 277 0495 cttengineering cam Yfl iAUCI r' 7n 1 A030 Robert Patterson From Mark Arcuri Sent Monday, December 04, 2006 9 34 AM To Amanda Popham Cc Chip Nix, Robert Patterson Subject RE Monkey Junction Amanda, It is due today We will submit all except check this morning will send it to Raleigh and they will get it tomorrow Thanks, Mark -----Original Message ----- From Amanda Popham [mailtc apopham@kdaholdingsinc com] Sent Monday, December 04, 2006 9 31 AM To Mark Arcuri Subject RE Monkey Junction Mark, When I get the check, we The check went out Friday but I'm afraid I sent it to the Wilmington office I am so sorry Can it still be submitted today? Amanda Popham Executive Administrator, Project Development KDA Holdings, Inc 350 Franklin Road Marietta, GA 30067 770/421-1532, ext 308 770/218-1403 fax -----Original Message----- FromMark Arcuri [mailto marcuri@cttengineering com] Sent Monday, December 04, 2006 9 12 AM To Amanda Popham Cc Jim Walsh, Chip Nix Subject RE Monkey Junction Are we going to receive the check today? At our Raleigh office? Thanks Sincerely yours, Mark T Arcuri, PE Project Manager / Project Engineer CRISER TROUTMAN TANNER CONSULTING ENGINEERS PO Box 3727 Wilmington, NC 28406 3809 Peachtree Avenue, Suite 102 Wilmington, NC 28403 p 910 397 2929 f 910 397 2971 cell 910 297 3036 The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material If you are not the intended recipient of this message you are hereby notified that any use, review, retransmission, dissemination, distribution, reproduction or any action taken in reliance upon this message is prohibited If you received this in error, please contact the sender and delete the material from any computer Any views expressed in this message are those of the individual sender and may not necessarily reflect the views of the company -----Original Message----- 1 i � f" �« I�_-aE _. L�^-� � . ;� 4��j�� i 7j� 4 4"V.-Y f 4 From Amanda Popham [mailto apopham@kdaholdingsinc com] Sent Friday, December 01, 2006 7 46 AM To Chip Nix, Mark Arcuri Cc Jim Walsh Subaect RE Monkey Junction Mark, I told my accounting department I needed the check today to send to you I will follow up with them when they get in this morning Amanda Popham Executive Administrator, Pro)ect Development KDA Holdings, Inc 350 Franklin Road Marietta, GA 30067 770/421-1532, ext 308 770/218-1403 fax -----Original Message----- FromChip Nix Sent Thursday, November 30, 2006 5 03 PM To 'marcuri@cttengineering com' Cc 'rpatterson@cttengineering com', Amanda Popham SubDect Re Monkey Junction Amanda, Please confirm Mark, I think Amanda is sending it to you on Friday for Monday delivery Thank You, Chip Nix Vice President KDA Holdings, Inc 350 Franklin Road Marietta, GA 30067 0 770-421-1532 x--313 F 770-218-1403 Sent from my B1ackBerry Wireless Device -----Original Message----- FromMark Arcuri <marcuri@cttengineering com> To Chip Nix <cnix@kdaholdingsinc com> CC Robert Patterson <rpatterson@cttengineering com> Sent Thu Nov 30 17 15 15 2006 SubDect RE Monkey Junction Chip, Just in case I lose the fight, are we still going to receive the $2,000 check? Thanks From Mark Arcuri Sent Tuesday, November 28, 2006 3 58 PM To 'Chip Nix' Cc Robert Patterson Subject RE Monkey Junction 2 Sorry, I am used to hand delivering to Wilmington office, but forgot this one will need to go to Raleigh DENR office So, please send to our Raleigh office by Monday morning We will deliver from there Thanks The address is Crzser Troutman Tanner 2840 Plaza Place Suite 103 Raleigh, NC 27612 p 919 277 0494 f 919 277 C495 Sincerely yours, Mark T Arcuri, PE ProOect,Manager / Project Engineer CRISER TROUTMAN TANNER CONSULTING ENGINEERS PO Sox 3727 Wilmington, NC 28406 3809 Peachtree Avenue, Suite 102 Wilmington, NC 28403 p 910 397 2929 f 910 397 2971 cell 910 297 3036 The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material If you are not the intended recipient of this message you are hereby notified that any use, review, retransmission, dissemination, distribution, reproduction or any action taken in reliance upon this message is prohibited If you received this in error, please contact the sender and delete the material from any computer Any views expressed in this message are those of the individual sender and may not necessarily reflect the views of the company From Mark Arcuri Sent Tuesday, November 28, 2006 3 44 PM To Chip Nix Cc Robert Patterson Subject RE Monkey Junction Chip, 3 f Here is the State Stormwater Comment Letter showing the requested $2,000 I am trying to get with Cameron Weaver on this - will let you know To be safe, please go ahead and send me a check for $2,000 written to NCDENR I need to have it by Monday morning so I can take it to them by the end of the day Monday Thanks" Sincerely yours, Mark T Arcuri, PE Pro3ect Manager / Project Engineer CRISER TROUTMAN TANNER CONSULTING ENGINEERS PO Box 3727 Wilmington, NC 28406 3809 Peachtree Avenue, Suite 102 Wilmington, NC 28403 p 910 397 2929 f 910 397 2971 cell 910 297 3036 The information transmitted is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material If you are not the intended recipient of this message you are hereby notified that any use, review, retransmission, dissemination, distribution, reproduction or any action taken in reliance upon th�-s message is prohibited If you received this in error, please contact the sender and delete the material from any computer Any views expressed in this message are those of the individual sender and may not necessarily reflect the views of the company From Chip Nix [mailto cnix@kdaholdingsinc com] Sent Tuesday, November 28, 2006 3 30 PM To mapetersen@alliancecreditunicn org Cc Mark Arcuri Subject Monkey Junction Mary Ann, I need to know what name Alliance Credit Union is licensed under with the state of NC I know you have three branches in the state, but do not know if you were licensed under another name other than Alliance Credit Union Please let me know I have copied Mark Arcuri, our civil engineer, as he needs to include this in one of his applications for permit Thank You, 4 Chip Nix Vice President KDA Holdings, Inc 0 770-421-1532 x-313 F 770-218-1403 cnix@kdaholdingsinc com RE Alliance express pernut app M-S - pRc f-vP I I� Subject: RE Alliance express permit app From: "TL Bullard" <tlbullard@dreds biz> Date: Mon, 9 Oct 2006 14 38 56 -0400 Nay. )-D To: "'Mark Arcun"' <marcun@cttengineenng com>, "'Cameron Weaver"' --Cameron Weaver@ncmail net> CC: "'Paul Bartlett"' <Paul Bartlett@ncmail net>, "'Robert Patterson"' <rpatterson@cttengineermg com>, "'Chip Nix"' <cnix@kdaholdingsmc com> Have you heard back, do we have the "zoning permit'? TL -----Original Message ----- From: Mark Arcun [mai Ito * marcuri@ctteng ineering com] Sent: Wednesday, October 04, 2006 3 57 PM To: Cameron Weaver Cc: Paul Bartlett, Robert Patterson, tlbullard@dreds biz, Chip Nix Subject: Alliance express permit app Cameron, see express app package for bank near Monkey Junction Please let us know first possible date for pre -application meeting Thanks Sincerely yours, Mark T. Arcurt, PE Project Manager/ Project Engineer CRISER TROUTMAN TANNER CONSULTING ENGINEERS PO Box 3727 Wilmington, NC 28406 3809 Peachtree Avenue, Suite 102 Wilmington, NC 28403 p 910 397 2929 f 910 397 2971 cell 910 297 3036 The information transmitted Is intended only for the person or entity to which it is addressed and may contain confidential and/or privileged material If you are not the intended recipient of this message you are hereby notified that any use, review, retransmission dissemination, distribution, reproduction or any action taken in reliance upon this message is prohibited If you received this In error, please contact the sender and delete the material from any computer Any views expressed In this message are those of the individual sender and may not necessarily reflect the views of the company OCT 0 5 2006 1 of 1 10/9/2006 2 40 PM I C R 1 IS E R TRDUTMAN t TANNER TRANSMITTAL LETTER TO FROM CAMERON WEAVER / PAUL BARTLETT Mark Arcun, PE COMPANY NCDENR DATE October 2006, - Stormwater 5, ADDRESS 127 Cardinal Drive Extension CTT S PROJECT NUMBER 5724 \ <00� Wilmington, NC 28405 PHONE NUMBER CLIENTS REFERENCE NUMBER 910-796-7215 RE Alliance Credit Union WETRANSMIT ❑ ATTACHED ❑ UNDER SEPARATE OWER ❑ HAND CARRIED BY ❑ UPS/FEDEx THE FOLLOWING ❑ TRACINGS ❑ PRINTS ❑ INSPECrION REPORT ❑ SHOP DRAWINGS ❑ SPEancATtONS ❑ OTHER COPIES DATE SHEET NO DESCRIPTION REMARKS 1 COPY REQUEST FOR EXPRESS PERMIT REVIEW 1 COPY NARRATIVE 1 COPY VICINTY MAP 1 ORIG & 1 COPY STORMWATER MANAGEMENT PERMIT APPLICATION 1 ORIG WET DETENTION BASIN SUPPLEMENT 1 ORIG CK # 44843- $4,000 1 COPY STORMWATER NARRATIVE AND CALCULATIONS 2 COPIES 9-27-06 C101 C1 02 C2 01 C2 02 PLANS NOTES/COMMENTS Cameron, normally, we would submit express request well in advance of submitting application package However, owner did not decide on express or standard till we were done with the plans There, I am submitting all together. Please call with earliest possible date for pre -application meeting, Thanks Fc Chip Nix (fx 770-218-1403) CTT File (one copy of all) - by CRISER TROUTMAN TANNER CONSULTING ENGINEERS Past Office Box 3727 Wilmington NC 28406 1 3809 Peachtree Ave Suite 102 Wilmington NC 28403 p 910 397 2929 f 910 397 2971 (v 1 { F Ikll! .- 14 ui do ' � j� r�,. r;" : .f - .r �•.� 4,� ; �' ,--yy'C �.�•�-+.-,r►� � ' ' i ^a.tirt ' It�t! �� '+ �`�'� �• x! ; � . . -.. :,fir �. li lam. __ �L�R .t h r' A •1 -f � `ice..-.—•.^r' - - L � , �'1-,r' _. a. �`•�R' • y't• F . fast /�//�� rj4T �`�y�"�-"i w J�` J.• " �' i.?F�! ' l' M rr4r I} `�' i'�([j{�j ` •�! (/�� \4Y , 5 ,* � y, .�� �� �'-.-. 111RRRr ;�� . �'.?� ft��lj�' � � MF PQ , Y ` � rr,. ~�'f�. r � `:1� �, '_,`•-�_`:�\; \s��1 �j� ' a t �s^o•, �.`'��jnlE% l` 'f !a�.\Q! '� 1�ii."�•�r�Im d6e'21-'.tQlAN.1,1i ,3T• �r is. CY �,J I.�► ' F a Corporations Search Results Page l of 1 North Carolina Elaine F. Marshal! DEPARTMENT OFTHE Secretary SECRETARY OF STATE PO Box 29622 Raleigh, NC 2762"622 (919)807-2000 Corporations *Corporations Home *important Notice •Corporations FAQ *Tobacco Manufacturers *Dissolution Reports *Non -Profit Reports *Verify Certification *Online Annual Reports *KBBE B2B Annual Reports Links 'Secretary Of State Home •Register for E-Procurement •Dept of Revenue Legislation *1999 Senate Bills *2001 Bill Summaries *Annual Reports 1997 *Corporations 1997 Search *By Corporate Name *For New Corporation *By Registered Agent Online Orders *Start An Order *New Payment Procedures Contact Us *Corporations Division *Secretary of State's web site Print *Printable Page (New Window) *Printable Page (This Window) *Hide Menu SearchType Starting With Search Date 12/5/2006 12 07 53 PM No Records Found Search Again Search Criteria Alliance Credit Uni, For questions or comments about the North Carolina Secretary of State's web site, please send e-mail to Webmaster http /lwww secretary state ne us/corporations/SearchResults aspx 12/5/2006 AMA ".��.� R North Carolina Department of Environment and Natural Resources 127 Cardinal Drive, Wilmington NC 28405 (910) 7M7307 FAX (910) 360-2004 Request for Express Permit Review RLL IN off Information below and CHECK required Permit(s). FAX or email to Cameron. WeaverC�ncmaff.net along with a narrative and yfclnity map of the project location. Projects must be submitted by 9.00 A.M, of the review date, unless prior arrangements are made. APPLICANT I Company E County, PROJECT N PROJECT S Company TRIBUTARY TO iN o T (STREAM NAME) - J"7 m7 , I -AV 'TWO- S7'7» State or National Environmental Policy Act (SEPA, NEPA) — EA or LEIS Required ❑ Yes VNo ❑ STREAM ORIGIN Determinatlon; # of stream calls; Stream Name [OSTORNWATER ❑ Low Density Ggh Density -Detention Pond ❑ High Density -Other Wetlands MUST be addressed below ❑ Low Density -Curb & Gutter ❑ High Density -infiltration ❑ Off Site ❑ COASTAL ❑ Excavation & Pill —�— ❑rBridges & Culverts ❑ Structures Information MANAGEMENT ❑ Upland Development ❑ Marina Development ❑ Urban Waterfront BLAND QUALITY [91rosion and Sedimentation Control Plan with 7-• q& acres to be disturbed. WETLANDS (401)- Wetlands on Property ❑ Yes ZNo YIsolated Wetlands on Property ❑ yes 9!No Check all that apply Wetlands Wlll Be Impacted ❑ Yes ❑ No Wetland Impacts., Acre(s) Wetlands Delineation has been completed ❑ Yes ❑ No ❑ Buffers Impacted- __ - Acres) USA COE Approval of Delineation completed ❑ Yes ❑ No 404 Application In process w/USACOE ❑Yes []No l Permit received from USACE ❑Yes ❑No 401 Application required []Yes ❑ No If Yes, ❑ Regular ❑ Express ---------,_-----------------_..r......... ............. ,..—..___.__—_..---._...----•------............... —_..,_ .—_.--_----------___.....------ --- Additional fees, not to exceed 50% of the origlnai Express Review permit application Fee, may be charged for subsequent reviews due to the insufficiency of the permit applications. , For DENR use only SUBMITTAL DATES Fee Split for multiple permits, SW $ CAMA $ LQS $ 401 $. Total Fee Amount $ _ 06 2006 Mary Ann Peterson Alliance Credit Union 3315 Almaden Expressway, Suite 55 San Jose, CA 95118 Dear Ms Peterson Michael F Easley, Governor William G Ross Jr, Secretary North Carolina Department of Environment and Natural Resources November 27, 2006 �]ECEIVED DEC 0 1 2006 Alan V Klimek, P E , Director Division of Water Quality 2 g 2006 DWQ_W�RO Subject REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No SW8 061028 Alliance Credit Union New Hanover County The Division of Water Quality's Stormwater Permitting Unit received a Stormwater Management Permit Application for Alliance Credit Union on October 5, 2006 A preliminary review of the package indicates that additional information is required to complete processing this permit application Please address the following items Please specify the name of your corporation ALLIANCE CREDIT UNION is specified on the application, but is not registered with the Department of the Secretary of State on their website, http //www secretary state nc us/corporations/ 2 Please correct inconsistencies between the application, the development plan, and the calculations One example is the differing impervious surface areas and associated percentages The parking and sidewalk square footages differ between the application and the development plan Additionally, the drainage area to the pond should include the surface area of the pond The built upon area and impervious area on the application should reflect these revisions This may not be a complete list of inconsistencies 3 Please indicate the permanent pool, temporary pool, and forebay volumes on your wet detention basin supplement sheet A copy of the supplement you submitted is included The dimensions for each line and arc formed by the permanent pool contour must also be indicated on the plan so that the volumes can be verified 4 Please specify the wetland species to be planted in the wet pond Please revise the detention pond to provide for a 10-foot wide vegetative shelf Please also ensure that the length to width ratio for the revised detention pond is 3 1 6 Please provide a table of elevations, areas, incremental volumes and accumulated volumes for the overall pond and the forebay This table must show values for the pond bottom, permanent pool, and temporary pool 7 Please show a trash rack with <4" openings on the outlet structure detail N Caro na anrfaltfy North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7015 Customer Service Internet h2o enr state nc us 512 N Salisbury St Raleigh, NC 27604 FAX (919) 733-2496 1-877 623-6748 An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper Ms Mary Ann Peterson Alliance Credit Union, Application No SW8 061028 Additional information Request November 27, 2006 - Please note this request for additional information is in response to a preliminary review A re -submittal fee of $2,000, 50% of the original fee, must accompany the requested information The information and should be received in our office by December 4, 2006, or the application will be returned as incomplete The return of a project will necessitate resubmittal of all required items, including the application fee If you need additional time to submit the information, please mail or fax your request for a time extension to the Division at the address and fax number on the bottom of this letter The request must indicate the date by which you expect to submit the required information The construction of any impervious surfaces, other than a construction entrance under an approved Sedimentation and Erosion Control Plan, is a violation of NCGS 143-215 1 and is subject to enforcement action pursuant to NCGS 143-215 6A Please reference the State assigned project number on all correspondence Original documents must be provided, copies are not acceptable If you have any questions concerning this matter, please contact me at (919) 733-5083, extension 376 Sincerely, VKellyson Environmental Engineer enc Permit application and wet pond supplement cc �Lmda`Lewis, DWQ Wilmington Regional Office Cameron Weaver, DWQ Wilmington Regional Office Ken Pickle, DWQ Central Office Stormwater Permitting Unit File SW8 061028 Mark T Arcuri, Criser Troutman Tanner Consulting Engineers Central Files 'OFFICE USE ONLY ' I ' T r- r+ 11 Pate,Received Fee Paid Permit Number State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an original L GENERAL INFORMATION 1 Applicants name (specify the name of the corporation, individual, etc who owns the project) Art-t r+ a C4" 11... +AN1 CtIl 2 Print Owner/Signing Official's name and title (person legally responsible for facility and compliance) tAA V-f a.niht : >0E—:51 pE1JT 3 Mailing Address for person listed in item 2 above a city �56a�1 :SDSEF, , .,,,. State,._ Zip 51 VB TeIephone,Number 4-b$ ` t 4 Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc) 5 Location of Project (street address) Clty� _W tLM Jf I4'rM1 - -_ County_ t4k:yl�lA&t-,3 211 E(R B Directions to project (from nearest major intersection). z L* . sliv- i �t 7, Latitude o ( �� Longitude W �)— 4-75 of protect 8 Contact person who can answer yuestlons about the project. Name _MAL745— 7t A:9 124 -,-EE Telephone Number "I 10 39 II PERMIT INFORMATION, 1 Specify whether project is (check one). A New Renewal Modlficatian Form SWU-101 Vernon 3 99 Page 1 of 2 If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number and its issue date (if known) 3 Specify the type of project (check one) Low Density _,(_High Density Redevelop General Permit Other 4 Additional Project Requirements (check applicable blanks) __CAMA Major XSedimentadon/Erosion Control _404/401 Permit ,.NPDES Stormwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748 III. PROJECT INFORMATION f i In the space provided below, summarize how stormwater will be treated Also attach a detailed narrative (one to two pages) describing stormwater management for the project_ 2 Stormwater runoff from this project drains to the _ _G N:EI CA ... River basin 3, Total Project Area Z- . a acres 4 Project Built Upon Area _96 5 How,many drainage areas does the project have?_ ,,_,_ _,_, 6 - Complete the following information for each drainage area. If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below 'Basinlnformation "j r' , 'ty-� I a 1"' r r ; "��,� DrainageArea 2,r ' Receiving Stream Name Receiving Stream Class Drainage Area l Existing Impervious' Area 0 Proposed Impervious` Area —726 p O i � % Impervious' Area (total) 66,0110 Im ' r` 6uus";5uafdce`Are - t; f " r D"r"afnage Area 1 +, �`"; '- ' r �` Drainage'Area,2 On -site- Buildings On -site Streets On -site Parking On -site Sidewalks 15 16 Cv- Other on -site Off -site Total pp ( Total Impervious area is defined as the built, upon area Including, but not limited to, buildings, roads. parking areas, sidewalks, gravel areas, etc. Form SWU-101 Version 3 99 Page 2 of 7 How was the off -site Impervious area listed above derived?, IV DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot. If lot sizes vary significantly, a table Iisting each lot number, size and the allowable built -upon area for each lot must be provided as an attachment I The following covenants are intended to ensure ongoing compliance with state stormwater management permlt number IJA as issued by the Division of Water Quality These covenants may not be changed or deleted without the consent of the State., 2 No more than N A* square feet of any lot shall be covered by structures or Impervious materials Impervious materials include asphalt, gravel, concrete, brick; stone, slate or similar maternal but do not include wood decking or the water surface of sWmmingpools 3 Swales shalt not be tilled in, piped, or altered except as necessary to provide driveway crossings. 4 Built -upon area in excess of the permitted amount requires a state stormwater management permit modification prlor to construction 5 A1lpermitted runo9"from outparcels or future development shall be directed into the permitted stormwater control system. These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted By your signature below, you certify that the recorded deed restrictions and protective covenants for this project stall include all the applicable items required above, that the covenants Will be binding on all parties and persons claiming under them, that they will run with the land, that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any Iot V SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for,each BMP specified for this project Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench, Supplement Form SWU-108 Neuse River Basin Supplement Form SWV-109 Innovative Best Management Practice Supplement ' Form SWU-101 Version 3 99 rage 3 of VI. SUBMITTAL REQUIREMENTS , Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ) A complete package includes all of the items listed below The complete application package should be submitted to the appropriate DWQ Regional Office. 1 Please indicate that you have provided the following required information by initialing in the space provided next to each item, ' I Initials • Original and one copy of the Stormwater Management Permit Application Form l crAc • One copy of the applicable Supplement Form(s) for each BMP • Permit application processing fee of$42T(payable to NCDENR) $4, �-rA- • Detailed narrative description of stormwater treatment/management t IML • Two copies of plans and specifications, including - Development/Project name - Engineer and firm -Legend - North arrow - Scale - Revision number & date - Mean high water line _ Dimensioned property/project boundary -Location map with named streets or NCSR numbers - Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems, and stormwater control measures - Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations - Drainage areas delineated , - Vegetated buffers (where required) ViI AGENT AUTHORIZATION , If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section. Designated agent (individual or firm) MPr244- -T- Mailing Address 778 cq U.I _^ to Z City t I LA&I &.: —1o t4 State t-i Zip Phone 9 t o 3`�`� - 29 Fax L 9 t `7 '- f VIH. APPLICANT'S CERTIFICATION 1, (print or type name ofperson listed in General Information, item Z) - M6g%( NN iJ PETt .S certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed in conformance with the approved plans, that the required deed restrictions and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A NCAC 2H 1000 ` Signature Date �g 1:onn SWU-101 Version 3 99 Page 4 of d Permit No O iD D (to be provided by DWo State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This ,form may be photocopied for use as an original" DWO Stormwater Management :Elfin Review A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for each basin, design calculations, and plans and specifications showing all basin and outlet structure details. I. PROJECT INFORMATION z Project Name. I MA Contact Person. M49-,e W t4'P2�" to . -F—klP Phone Number For projects with multiple basms, specify which basin this worksheet applies to J elevations I I ' Basin. Bottom Elevation. Zl . %) ft (door of the basin) Permanent Pool Elevation �i..0 % (elevation of the orifice) Temporary Pool Elevation zg . ft (elevation of the discharge structure overflow) areas t Permanent Pool Surface Area 2-110 sq R (water surface area at the orifice elevation) Drainage Area 1. 2.6 ac (on -site and off -site drainage to the basin) Impervious Area 3(., o� (on -site and off -site drainage to the basin) 0•FS ArG volumes Permanent Pool Volume cu, ft (combined volume of main basin and forebay) Temporary Pool Volume cu. ft (volume detained above the permanent pool) Forebay Volume cu ft (approximately .20% of total volume) Other parameters �` ` , SAIDAi 7•]'l (surface area to drainage area ratio from D' WQ table) Diameter of Orifice 7i in (2 to 5 day temporary pool draw -down required) Design Rainfall in _3 ` Design TSS Removal 2 110 % (minimum 85% required) Form SWU-102 Rev 3 99 Page 1 of 4 r I I i 4 I I Footnotes i When using,the Division SAMA tables, the correct SA/DA ratio for permanent pool sizing should be computed based upon the actual unpervious % and permanent pool depth Linear interpolation should be employed to determine the correct value for non- standard table entries 2 In the 20 coastal counties, the requirement for a vegetative fitter may be waived if the wet detention basin is designed to provide 90% TSS removal The NCDENR BMP manual provides design tables for both 85% TSS removal and 90% TSS removal H. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N C. Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section- IS A NCAC 2H .1008, Initial m the space provided to indicate the following design requirements have been met and supporting documentation is attached. If the applicant has designated an agent m the Stormwater Management Permit Appltcation Form, the agent may initial below. If a requirement has not been met, attach justification. r - ° r Applicants Initials a. The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet) b. The forebay volume is approximately equal to 20% of the basin volume c The temporary pool controls iuriofffrom the design storm event d The temporary pool draws down in 2 to 5 days " e If required, a 30-f6ot vegetative filter is provided at the outlet (include non -erosive flow S calculations) f The basin length to width ratio is greater than 3 1, g. The basin side slopes above the permanent pool are no steeper than 3 1 h. A submerged and vegetated perimeter shelf with a slope of 61 or less (show detail) M7A- i Vegetative cover above the permanent pool elevation is specified. tktA 1 A trash rack or similar device is provided for both the overflow and orifice k. A recorded drainage easement is provided for each basin including access to nearest right- of-way t I If the basin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin lll'� m A mechanism is specified which will drain the basin for maintenance or an emergency III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT { The wet detention basin system is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided This system (check one) 0 does oes not incorporate a vegetated filter at the outlet. This system (check one) 0 does 9oes not incorporate pretreatment other than a forebay. Form SWU-102 Rev 3 99 Page 2 of Maintenance activities shall be performed as follows- i 1. After every significant runoff producing rainfall event and at least monthly - a. Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition. , 5 ` b. Check and clear the orifice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed 2 Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of sic inches, and remove trash as needed 3. Inspect and repair the collection system (i a catch basms, piping, swales, npmp, etc ) quarterly to maintain proper functioning, 4. Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced to 75% of the original design depth (see diagram below) Removed sediment shall be disposed of in an appropriate manner and shall be handled in a manner that will not adversely iimpact water quality (i e stockpiling near a wet detention basin or stream, etc ) The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments, 1 When the permanent pool depth reads 2, ZS feet to the main pond, the sediment shall be removed 5 When the permanent pool depth reads feet in the forebay, the sediment shall be removed x BASIN DIAGRAM Till to the blanks) f ` 1 Permanent Pool Elevation Sediment Re oval El 2 7 175 a Sediment Removal Elevation•75 75% Bottom Vle atron� 0 ---- % - -------------------------------------------- ------- Bottom Elevation 21 0 25% FOREBAY MAIN POND 5 Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface These plants shall be encouraged to grow along the vegetated shelf and forebay berm , 6 If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical. Form SWU-102 Rev 3 99 Page 3 of 4 r 7 All components of the wet detention basin system shall be maintained in good working order I acknowledge and agree by my signature below that I am responsible for the performance of the seven maintenance procedures listed above. I agree to notify DWQ of any problems with the system or prior to any changes to the system or responsible party. Print name MA+Z`r A-t-J tJ Title-_ _ a 4 <AX •tom y l C., . 'faiZSt ix T Address. C5 Ad.WMc. 951} Phone. 1 o �- Signature Note The legally responsible party should not be a homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president. a Notary Public for the State of County of _ , do hereby certify that personally appeared before tree this _ day of _ __ and acknowledge the due execution of the forgoing wet detention basin maintenance requirements. Witness my hand and official seal, 6 t Se�e A++ach2d r t SEAL My commission expires 5 , S Form SWU-102 Rev 3 99 Page 4 of 4 CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT State of California ss County of 5un4� C I ara- On!] ~2-+�p , before me, ! Date Ann m and 111le of f[f (e 9 Jane e, NotaF&P.W. ��se personally appeared Name(s) of Signers) .personally known to me to be the person* whose name04 Qa4 MARYJOAGUIW subscribed to the within instrument ,and ComNot" 1ahkw6 acknowledged to me that Al he tXy executed Pubn Mary Put>�c �ca�a Santa Clara county je,mvcomm the same int l er tgir - authorized, Explmj=20,2009 capac(ty(i�d), and that - by lye er lbVr signature64 on the instrument the person(,, or the entity upon behalf of which the person(' acted, executed the instrument WITNESS my hand and icial seal Place Notary Seal Above Slgr of No ublic i OPTIONAL Though the information below is not required by taw, it may prove valuable to persons relying on the document - and could prevent fraudulent removal and reattachment of this form to another document Description of Attached Docu en Title or Type of Documentr A- ^bLkr4'j.on sin rl[P�YY1Q o d [�C� I I Number Document Date of Pages Signer(s) Other Than Named Above C_1i"f JGI� j Capacity(ies) Claimed by Signer Signer's Name ❑ Individual Top of thumb here ❑ Corporate Officer — Title(s) ❑ Partner —❑ Limited ❑ General ❑ Attorney in Fact ❑ Trustee ❑ Guardian or Conservator ❑ Other Signer Is Representing 1999 National Notary Aseodation • 9M De Soto Ave, P 0 Box 2402 Chatswool% CA RUM2402 • Mww nolionatrotary org Prod No 6907 Reorder Coll ToFFrso 14W-876-6627 0 i OFFICE USE ONLY Date Received Fee Paid Permit Number LO.LUNO 4150 6 qqSq!5 I ,;WE OC61 02,5 State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM This form may be photocopied for use as an anginal GENERAL INFORMATION 1 Applicants name (specify the name of the corporation, individual, etc who owns the project) -At�t_. A CE c.� IT LXL1-J 1 �_T _,_ --- 2 Print Owner/Signing Official's name and title (person legally responsible for facility and compliance) NLA$. AN1-4-11f �__"_jig* lve-: �LIC -'p r51 T3TrN_ r — — - 3 Mailing Address for person listed in item 2 above City A4,A_-Sq_ _ _ _ _- _------ - _ State C,ti Zip 951 l Telephone Number ( 4-04 ) 9 ` cl I 4 Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters operation and maintenance agreements, etc) A L" e,r r .� LT�ET�I"[' LAti41 W 5 Location of Project (street address) City W l L,.M 1 f'36e 42hl-- 6 Directions to project (from nearest major intersection) County _l�}__ 1=ki�zLa121rOR.. -_- y f M l l,E�2 - rO 16.2 P s�z tIcE Ep_n D. T`u-Az�� &t4T sL?E— is Z-50 -rf t C>0 GEi"t. 7 Lahtude iJ 410 g 5 Longitude VJ '� S �3ry of project 8 Contact person who can answer questions about the project Name P'IAi j.;-F _ Telephone Number (` I O it PERMIT INFORMATION 1 Specify whether project is (check one) — CA New Renewal —_Modification Form SWU-101 Version 3 99 Page 1 of4 2 If this application is being submitted as the result of a renewal or modification to an existing permit, list the existing permit number _ _ _ _ _ _ and its issue date (if known) 3 Specify the type of project (check one) --Low Density _High Density Redevelop . Gencral Permit _—Other 4 Additional Project Requirements (check applicable blanks) _ —CAMA Major XSedimentation/Erosion Control 404/401 Permit _NPDES Storrnwater Information on required state permits can be obtained by contacting the Customer Service Center at 1-877-623-6748 III PROJECT INFORMATION I In the space provided below, summarize how stormwater will be treated Also attach a detailed narrative (one to two pages) describing stormwater management for the project __ ____�_>IzarAU.�rav� _ W'_%--�-- �- C',lt e-A kc V'V7�_:1 � om- C Mt+n AIL" V ..e- ct w Q 0LE OLKA Cb t4-n n, A .O , J W e — c eA c_% jolts' 2 Storniwater runoff from this project drains to the G �--_ekg_ _ - - River basin 3 Total Project Area _ _ Z- O -3, acres 4 Project Built Upon Areal - _% 5 How many drainage areas does the project have?__1_-^ 6 Complete the following information for each drainage area If there are more than two drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below Basin Information Drainage Area 1 Drainage Area 2 Receiving Stream Name tA Receiving Stream Class Drainage Area y Existing Impervious* Area [� Proposed Impervious*Area a aj s'r- % Impervious` Area (total) Impervious* Surface Area Drainage Area I Drainage Area 2 On -site Buildings Z 00 5 On -site Streets On -site Parking -act 263 S-t On -site Sidewalks t 1 Other on -site Off -site Total cot Total * Impervious area is defined as the built upon area including, but not limited to, buildings, roads, parking areas, sidewalks gravel areas etc Form SWIJ-101 Vernon 3 99 Page 2 of 4 7 Now was the off -site Impervious area listed above derived? "AV _ IV DEED RESTRICTIONS AND PROTECTIVE COVENANTS The following italicized deed restrictions and protective covenants are required to be recorded for all subdivisions, outparcels and future development prior to the sale of any lot If lot sizes vary significantly, a table listing each lot number, size and the allowable built -upon area for each lot must be provided as an attachment 1 The following covenants are intended to ensure ongoing compliance with state stormwater management permit number NA as issued by the Division of Water Quality These covenants may not be changed or deleted without the consent of the State. 2 No more than - N At square feet of any lot shall be covered by structures or impervious materials Impervious materials include asphalt, gravel, concrete, brick, stone, slate or similar material but do not Include wood decking or the water surface of swimming pools 3 Swales shall not be filled in piped, or altered except as necessary to provide driveway crossings 4 .Built -upon area in excess of the permitted amount requires a state stormwater management permit modili'catton prior to construction 5 All permitted runoff from outparcels or future development shall be directed into the permitted stormwater control system These connections to the stormwater control system shall be performed in a manner that maintains the integrity and performance of the system as permitted By your signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the applicable items required above, that the covenants will be binding on all parties and persons claiming under them, that they will run with the land that the required covenants cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot V SUPPLEMENT FORMS The applicable state stormwater management permit supplement form(s) listed below must be submitted for each BMP specified for this project Contact the Stormwater and General Permits Unit at (919) 733-5083 for the status and availability of these forms Form SWU-102 Wet Detention Basin Supplement Form SWU-103 Infiltration Basin Supplement Form SWU-104 Low Density Supplement Form SWU-105 Curb Outlet System Supplement Form SWU-106 Off -Site System Supplement Form SWU-107 Underground Infiltration Trench Supplement Form SWU-108 Neuse River Basin Supplement Form SWU-109 Innovative Best Management Practice Supplement Form SWU-101 Version 3 99 Page 3 of 4 VI SUBMITTAL REQUIREMENTS Only complete application packages will be accepted and reviewed by the Division of Water Quality (DWQ) A complete package includes all of the items listed below The complete application package should be submitted to the appropriate DWQ Regional Office Please indicate that you have provided the following required information by initialing in the space provided next to each item Initials • Original and one copy of the Storniwatei Management Permit Application Form • One copy of the applicable Supplement Form(s) for each BMP'#',d�- _ • Permit application processing fee of$42T(payable to NCDENR) $4-,=v- • Detailed narrative description of stormwater treatment/management • Two copies of plans and specifications, including �T - Development/Project name - Engineer and firm -Legend - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned property/project boundary - Location map with named streets or NCSR numbers Original contours, proposed contours, spot elevations, finished floor elevations - Details of roads, drainage features, collection systems and stormwater control measures Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations Drainage areas delineated Vegetated buffers (where required) VII AGENT AUTHORIZATION If you wish to designate authority to another individual or firm so that they may provide information on your behalf, please complete this section r.,AZt'502 't'�uTMA.IJ '1"ANIJ�t�. C.�JVS , �I N CL�{j Designated agent (individual or firm) A A 21L_�— Mailing Address SS 09 ! [ E . �U.t _ �O City _ ll�� t t.M t NCr t� 1 -- -- ----- State __ L,3G _ Zip Z8 4-cc2 _— Phone L`� i O_ �� " Z 2� — - Fax 7i `1- 29`1 I VM APPLICANT'S CERTIFICATION 1, (prin( or type name ofperson listed in General Information, item 2) MA21 ( AN lat4 certify that the information included on this permit application form is, to the best of my knowledge, correct and that the project will be constructed In conformance with the approved plans that the required deed restrictions and protective covenants will be recorded, and that the proposed project complies with the requirements of 15A NCAC 2H 1000 Signature _-�? _ _ —� - Date i Form SWU-101 Wn. ion 3 99 Page 4 of 4 Permit No t W 00 (o t 0 2.S (to be provided by DWQ) State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMWATER MANAGEMENT PERMIT APPLICATION FORM WET DETENTION BASIN SUPPLEMENT This form may be photocopied for use as an original DWQStorinwater Management Plan Review_ A complete stormwater management plan submittal includes an application form, a wet detention basin supplement for each basin, design calculations, and plans and specifications showing all basin and outlet structure details I PROJECT INFORMATION Project Name A—u—S pztg!g� C.rL`-TJTT Contact Person L&A&X p.0t l ��r•17t�_ap Phone Number L4a�)9i9 w �i 51 For projects with multiple basins, specify which basin this worksheet applies to elevations Basin Bottom Elevation C) ft Permanent Pool Elevation 24- 0 ft Temporary Pool Elevation ag S ft (floor of the basin) (elevation of the orifice) (elevation of the discharge structure overflow) areas Permanent Pool Surface Area sq It (water surface area at the or frce elevation) Drainage Area i 2.( ac (on -site and off -site drainage to the basin) Impervious Area 3b, 00 , (on -site and off -site drainage to the basin) 0.8 3 A-c- volumes Permanent Pool Volume Temporary Pool Volume Forebay Volume Other parameters SA/DAi Diameter of Orifice Design Rainfall Design TSS Removal 2 Form SWU-102 Rev 3 99 cu ft (combined volume of main basin and forebay) cu ft (volume detained above the permanent pool) cu It (approximately 20% of total volume) 71 (surface area to drainage area ratio from DWQ table) ?i in (2 to 5 day temporary pool draw -down required) in t7 % (minimum 85% required) Page I of 4 Footnotes When using the Division SAfDA tables, the correct SA/DA ratio for permanent pool sizing should be computed based apon the actual impervious % and permanent pool depth Linear interpolation should be employed to determine the correct value for non- standard table entries In the 20 coastal counties, the requirement for a vegetative filter may he waived if the wet detention basin is designed to provide 90% TSS removal The NCDENR 3MP manual provides design tables for both 85% TSS removal and 90% T'SS removal H. REQUIRED ITEMS CHECKLIST The following checklist outlines design requirements per the Stormwater Best Management Practices Manual (N C Department of Environment, Health and Natural Resources, February 1999) and Administrative Code Section 15 A NCAC 2H 1008 Initial in the space provided to indicate the following design requirements have been met and supporting documentation is attached If the applicant has designated an agent in the Storinwater Management Permit Application Fonn, the agent may mitial below If a requirement has not been met, attach justification. Applicants Initials L TAr a The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet) 1',` ` Pr b The forebay volume is approximately equal to 20% of the basin volume PA-N N- c The temporary pool controls runoff from the design storm event M-� d The temporary pool draws down in 2 to S days e If required, a 30-foot vegetative filter is provided at the outlet (include non -erosive flow calculations) M f The basin length to width ratio is greater than 3 1 f wl 1� g The basin side slopes above the permanent pool are no steeper than 3 1 M.t f�: _ h A submerged and vegetated perimeter shelf with a slope of 6 1 or less (show detail) t, 1 A- i Vegetative cover above the permanent pool elevation is specified P& fir i A trash rack or similar device is provided for both the overflow and onfice k A recorded drainage easement is provided for each basin including access to nearest right- of-way I It the basin is used for sediment and erosion control during construction, clean out of the basin is specified prior to use as a wet detention basin. m A mechanism is specified which will drain the basin for maintenance or an emergency III. WET DETENTION BASIN OPERATION AND MAINTENANCE AGREEMENT The wet detention basin systemm is defined as the wet detention basin, pretreatment including forebays and the vegetated filter if one is provided This system (check one) 0 does oes not This system (check one) 0 does 4oes not incorporate a vegetated filter at the outlet incorporate pretreatment other than a forebay. Form SWU-102 Rev 3 99 Page 2 of Maintenance activities shall be performed as follows I After every significant runoff producing rainfall event and at least monthly a Inspect the wet detention basin system for sediment accumulation, erosion, trash accumulation, vegetated cover, and general condition b Check and clear the onfice of any obstructions such that drawdown of the temporary pool occurs within 2 to 5 days as designed 2 Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover, mow vegetative cover to maintain a maximum height of six inches, and remove trash as needed 3 Inspect and repair the collection system (i a catch basins, piping, swales, nprap, etc ) quarterly to maintam proper functioning 4 Remove accumulated sediment from the wet detention basin system semi-annually or when depth is reduced,to 75% of the original design depth (see diagram below) Removed sediment shall be disposed of in an appropriate manner and shall be handled in a manner that will not adversely impact water quality (i e stockpiling near a wet detention basin or stream, etc ) The measuring device used to determine the sediment elevation shall be such that it will give an accurate depth reading and not readily penetrate into accumulated sediments When the permanent pool depth reads S,2-t:) _- feet to the main pond, the sediment shall be removed When the permanent pool depth reads 2 ZE� feet in the forebay, the sediment shall be removed BASIN DIAGRAM 6611 in the bh7nks) 0 Permanent Pool Elevation Sediment Re oval El Z1 j :;75.—\--_ _-- Sediment Removal Elevation 2_1.7�125%/ 75% - ----- -- Bottom E3e anon �,ii ............................................ ----_- Bottom Elevation 'ZL 0 FOREBAY MAIN POND 5 Remove cattails and other indigenous wetland plants when they cover 50% of the basin surface These plants shall be encouraged to grow along the vegetated shelf and forebay berm 6 If the basin must be drained for an emergency or to perform maintenance, the flushing of sediment through the emergency drain shall be minimized to the maximum extent practical Form SWU-102 Rev 3 99 Page 3 of 4 7 All components of the wet detention basin system shall be maintained in good working order I acknowledge and agree by my signature below that I am responsible for the performance of the seven maintenance procedures listed above I agree to notify D WQ of any problems with the system or prior to any changes to the system or responsible party Print name A-t�j iJ `!eT~ 5 ErJ Title CLA-*T t C.Z— S� Address {15h�lA+C7 9 St 116 Phon Sign Date Note The legally responsible party should not bed homeowners association unless more than 50% of the lots have been sold and a resident of the subdivision has been named the president I, a Notary Public for the State of County of , do hereby certify that personally appeared before me this day of and acknowledge the due execution of the forgoing wet detention basin maintenance requirements Witness my hand and official seal, SEAL My commission expires See AHocl�zd Cep-6 f,ca-I2 Form SWU-102 Rev 3 99 Page 4 of 4 CALIFORNIA ALL-PURPOSE ACKNOWLEDGMENT State of California County of � �L C I CZ, O ss On `�� - C7C�J before me, i 1 r Date me and Title of T (e g Jane Che Notary Public ) personally appeared _ M Ann e MAlry JO AGUILM Cammitslon# 1W277 LID M Pubfla - Caflfomla Santa Clara County My Comm ExphesJon20 2009 personally known to me _v7derf — to be the personQ,} whose nameK &4 subscribed to the within instrument and acknowledged to me that blel he txy executed the same in Wk er Wr authorized capacity(i"), and that by I> e� tWir signature% on the instrument the personX. or the entity upon behalf of which the persono< acted, executed the instrument WITNESS my hand and icial seal,-, ✓ Place Notary Seal Above Si ure of Not ublic OPTIONAL Though the information below is not required by taw, it may prove valuable to persons retying on the document and could prevent fraudulent removal and reattachment of this form to another document Description of Attached Docu en Title or Type of Document Document Date o t�1_ Number of Pages Signer(s) Other Than Named Above Capacity(tes) Claimed by Signer Signer's Name _ ❑ Individual Corporate Officer -- Title(s) Partner ---❑ Limited ❑ General Attorney in Fact Trustee Guardian or Conservator ❑ Other Signer Is Representing RIGHT THUMBPRINT OF SIGNER 0 1999 National Notary Association 0350 De Soto Ave PO Box 2402 Chatsworth CA 91313-2402 w Mationalnetaryag Prod No 5907 Reorder Call Toll Froe l BDO.876 6827