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HomeMy WebLinkAboutSW8980733_Historical File_19981019t State of North Carolina • Department of Environment and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor Wayne McDevitt, Secretary Division of Water Quality Mr. Clarence Willie, Asst. Superintendent Brunswick County Schools 35 Referendum Drive, NE Bolivia, NC 28422-0189 Dear Mr. Willie: + . • r NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES October 19, 1998 Subject: Permit No. SW8 980733 Bolivia Elementary School Addition Low Density Stormwater Project Brunswick County The Wilmington Regional Office received the Stormwater Management Permit Application for Bolivia Elementary School Addition on July 23, 1998, with final information on October 14, 1998. Staff review of the plans and specifications has d-tc:-min-.A- that the project. as proposed. will comply with the Stormwater Regulations set forth in Title 15A NCAC 2H.1000. We are forwarding Permit No. SW 980733 dated October 19, 1998, for the construction of Bolivia Elementary School Addition. This permit shall be effective from the date of issuance until rescinded and shall be subject to the conditions and limitations as specified therein, and does not supercede any other agency permit that may be required. If any parts, requirements, or limitations contained in this permit are unacceptable, you have the right to request an adjudicatory hearing upon written request within thirty (30) days following receipt of this permit. This request must be in the form of a written petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of Administrative Hearings, P.O. Drawer 27447, Raleigh, NC 27611-7447. Unless such demands are made this permit shall be final and binding. If you have any questions, or need additional information concerning this matter, please contact either Linda Lewis or me at (910) 395-3900. Sincerely, Rick Shiver Water Quality Regional Supervisor RSS/arl: S:\WQS\STORMWAT\PERMIT\980733.00T cc: David Bowman, P.E. Delaney Aycock, Brunswick County Inspections Wilmington Regional Office Central Files Linda Lewis 127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 'Telephone 910-395-3900 FAX 910-350-2004 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper State Stormwater Management Systems Permit No. SW8 980733 ' ' STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WATER QUALITY STATE STORMWATER MANAGEMENT PERMIT 1. LOW 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 Brunswick County Schools Bolivia Elementary School Addition Brunswick County FOR THE construction, operation and maintenance of a 30 % low density development 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 for Bolivia Elementary School Addition. The Permit shall be effective from the date of issuance until rescinded and shall be subject to the following specific conditions and limitations: I. DESIGN STANDARDS The total allowable built -upon area for the tract is 89,368 square feet, based on an adjusted site area which excludes the 169,588 square feet of existing impervious areas.. This permit covers the construction of 4,815 square feet of additional built -upon area. 2. The overall tract built -upon area percentage for the project, based on the adjusted site area of 297,894 square feet, must be maintained at 30%, as required by Section 1005 of the stormwater rules. 3. Approved plans and specifications for projects covered by this permit are incorporated by reference and are enforceable parts of the permit. 4. The only runoff conveyance systems allowed will be vegetatcd conveyances such as swaies with minimum side slopes of 3:1 (H: V) or curb outlet systems as defined in the stormwater-rules and approved by the Division. 2 State Stormwater Management Systems Permit No. SW8 980733 5. No piping shall be allowed except: a. That minimum amount necessary to direct runoff beneath an impervious surface such as a road. b. That minimum amount needed under driveways to provide access to lots. c. That amount which existed on site prior to issuance of this permit, or which is being replaced or relaid, as shown on the plans. b. Projects covered by this permit will maintain a minimum 30 foot wide vegetative buffer between all new impervious areas and surface waters. 7. The tract will be limited to the amount of built -upon area indicated iJ. aa the approved plans. 8. The permittee is responsible for verifying that the proposed built -upon area does not exceed the allowable built - upon area. 9. The Engineer/Owner/Developer/Permittee must certify in writing that the project's stormwater controls, and impervious surfaces have been constructed within substantial intent of the approved plans and specifications. Any deviation from the approved plans must be noted on the Certification. 10. 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. IL The following items will require a modification to the permit. Revised plans, specifications -and calculations must be permitted prior to the permittee beginning construction on the modification: a. Any revision to the approved plans, regardless of size. b. Project name change. c.. Transfer of ownership. d. Redesign or addition to the approved amount of built -upon area. e.. Further subdivision of the project area. f. Filling in, altering or piping any vegetative conveyance shown on the approved plan. In' addition, the Director may determine that other revisions to the project should require a modification to the permit. II. SCHEDULE OF COMPLIANCE 1. The permittee shall comply with the following schedule for construction and maintenance of the Low Density Option stormwater systems: a. Swales and other vegetated conveyances shall be eoinstiucted in their entirety, vegetated, and be operational for their intended use prior to the construction of any built -upon surface except roads. b. During construction, erosion shall be kept to I a minimum and any eroded areas of the swales or other vegetated conveyances will be repaired immediately. 2. The permittee shall submit the Engineer/Owner/Designer/Permittee Certification within 30 days of completion of the project. Q State Stormwater Management Systems Permit No. SW8 980733 3. The permittee shall at 'all times provide the operation and maintenance necessary to operate the permitted stormwater management systems at optimum efficiency to include: a. Inspections b Sediment removal. C. Mowing, and revegetating of the side slopes. d. Immediate repair of eroded areas. e. Maintenance of side slopes in accordance with approved plans and specifications. 4. The permittee shall submit all information requested by the DirectoA. r or his representative within the time frame specified in the written information request. III. GENERAL CONDITIONS Failure to abide by -the conditions and limitations contained in this permit may subject the Permittee to an enforcement action by the Division of Water Quality, in accordance with North Carolina General Statutes 143- 215.6A to 143-215.6C. 2. The permit issued shall continue in force and effect until revoked or terminated. 3. 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. 4. The issuance of this permit does not prohibit the Director from reopening and modifying the permit, revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations contained in Title 15A of the North Carolina Administrative Code, Subchapter 2H.1000; and North Carolina General Statute 143-215.1 et. al. 5. The permit is not transferable to any person except after notice to and approval by the Director. The Director may require modification or revocation and reissuance of the permit to change the name and incorporate such other requirements as may be necessary. A formal permit request must be submitted to the Division of Water Quality accompanied by the appropriate fee, documentation from both 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. 6. The permittee grants permission to DENR Staff to enter the property for the purpose of inspecting all components of the stormwater management facility. 7. 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) which have jurisdiction. , Permit issued this the 19th day of October, 1998. NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION A. Preston Howard, Jr., P.E., Director Division of Water Quality By Authority of the Environmental Management Commission Pert Number SW8 980733 4 State Stormwater Management Systems Permit No. SW8 9gp7 3 R ..,W � ,� .. •�.:. �....:.... ., •. ; .. i .USE O1�itY:', ,:;�: °:.. -.... .. ,; :..,. x•; � � . Date Received Fee Paid Perini Number State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMI'V.-`LTER h�TAGEMEN T FERMIT APPLICATION FOIKNI This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Brunswick County Schools J 2. Print Owner/Signing Official's name and title (the person who is legally responsible for the facility and its compliance):. Mr. Clarence Willie, Asst. Sul2erintendent 3. Mailing Address for person listed in item 2 above: 35 Referendum Drive, NE Bolivia State: NC Z,ip: 28422-0189 Telephone Number: ( 910 ) 2 5 3- 2 9 8 0 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Boli�#ia Elementary School s 5. Location of Facility (street address): 4036 Business Highway 17 E r Bolivia Corarty: Brunswick 6. Directions to facility (from nearest major intersection): US 17 Business, approximately 1300' north of intersection with SR 1513 7. latitude: 3 4- 0 3- 4 2 Ihrde 7 8- 0 8- 5 0 of facility 8. Contact person who can answer questions about the facility. Name_ David B. Bowman, PE Telephone Number. ( 910 ) 754-8029 H. PERMIT INFORMATION: 1. Specify whether project is (check one): x New F-enewal Modification 2. If this application is being submitted aa.the result of a renewal or modification to an existing permit, list the exrsft pout nuwjx r N / A and its issue date (if known) Form SWU-101 April 1998 Page 1 of 4 State of North Carolina Department of Environment and Natural Resources Division of Water Quality STORMI'V.-`LTER h�TAGEMEN T FERMIT APPLICATION FOIKNI This form may be photocopied for use as an original I. GENERAL INFORMATION 1. Applicants name (specify the name of the corporation, individual, etc. who owns the project): Brunswick County Schools J 2. Print Owner/Signing Official's name and title (the person who is legally responsible for the facility and its compliance):. Mr. Clarence Willie, Asst. Sul2erintendent 3. Mailing Address for person listed in item 2 above: 35 Referendum Drive, NE Bolivia State: NC Z,ip: 28422-0189 Telephone Number: ( 910 ) 2 5 3- 2 9 8 0 4. Project Name (subdivision, facility, or establishment name - should be consistent with project name on plans, specifications, letters, operation and maintenance agreements, etc.): Boli�#ia Elementary School s 5. Location of Facility (street address): 4036 Business Highway 17 E r Bolivia Corarty: Brunswick 6. Directions to facility (from nearest major intersection): US 17 Business, approximately 1300' north of intersection with SR 1513 7. latitude: 3 4- 0 3- 4 2 Ihrde 7 8- 0 8- 5 0 of facility 8. Contact person who can answer questions about the facility. Name_ David B. Bowman, PE Telephone Number. ( 910 ) 754-8029 H. PERMIT INFORMATION: 1. Specify whether project is (check one): x New F-enewal Modification 2. If this application is being submitted aa.the result of a renewal or modification to an existing permit, list the exrsft pout nuwjx r N / A and its issue date (if known) Form SWU-101 April 1998 Page 1 of 4 3. Specify the type of project (check one): x Low Density High Density Redevelop General Permit Other 4. Additional Project Requirements (check applicable blanks): LAMA Major x Sedimentation/Erosion Control 404 Permit III. PROJECT INFORMATION 1. In the space provided below, summarize how stormwater will be treated. Also attach a detailed narrative (one to two pages) descrying stormwater management for the project . Increased impervious area will drain to a vegetated filter and discharge into tributary of Middle Swamp. Impervious area equal to existing impervious area(to be removed) will drain into existing storm drains 2. Stormwater runoff from this project drains to the Lumber River basin. 3. Total Project Area: 1 0.7 3 acres 4. Project Built Upon Area: 3 7.2 5. How many drainage basins does the project have? 4 6. Complete the following information for each drainage basin. If there are more than two drainage basins in the project, attach an additional sheet with the information for each basin provided in the same format as below. :Easii biforination l ria" „Basin 1 "; i iama Receiving Stream Name Trib. to Middle Swamp Trib. to Middle Sw Receiving Stream Class C 5-W Drainage Basin Area 31,276 SF 78,887 SF Existing Impervious* Area 17,010 SF 57,779 SF Proposed Im eryious*Area 22,600 SF 57,235 SF % imvervious* Area (total) 72 % 72.5 % : Im erSrxaus Surface Area. Drama Basin 1 g n:..., , .. Drains Basin 2 _. : On -site Buildings 12,175 SF 6727 SF On -site Streets On -site Parking 9947 SF 38,399 SF On -site Sidewalks 478 SF 12,109 SF Other on -site Off -site Total: 22, 600 SF 1= 57,235 SF Impervious area is defined as the built upon area including, but not crmttea to, vuuaings, roaas, parking areas, sidewalks, gravel areas, etc. 7. How was the off --site impervious area listed above derived? N / A IV. DEED RESTRICTIONS AND PROTECTIVE COVENANTS Deed restrictions and protective covenants are required to be recorded for all low density projects and all subdivisions prior to the sale of any lot. Please see Attachment A for the specific items that must be recorded. Form SWU-101 April 1998 Page 2 of 4 Oet-14-98 09:33A East Caast Engineering Co 910-754-8049 P.05 -.1 � ,G By yo►g signature below, you certify that the recorded deed restrictions and protective covenants for this project shall include all the items requirer' the permit, that the covenants will be b;-+ding on all parties and persons 'claiming under them, that they will , an with the land, that the required cover r3 cannot be changed or deleted without concurrence from the State, and that they will be recorded prior to the sale of any lot. V. AGENT A=ORIZATION If you wish to designate submittal authority to another individual or firs► so that they may provide information on your behalf, please complete this section: Designated agent (aidh dual orcrm): Past Coast Engineering Company, PA „- MagirgA Pp Box 2869 Shallotte State• NC Tp 28459 ph=w ( 910 1 754-8029 VL SUB11=AL REQUUMMENTS Fax( 910 1_ 754-8049 This application package will not be accepted by the Division of Water Quality urdess all of the applicable itenns are included with the submittal. 1. Olease indicate that you have provided the following required infor=tion by signing your initials in the space provided next to each item. Original, and one copy of the Stormwater Mamgement Permit Application Form One copy of the applicable Supplement Form(s) for each BUT (see Attachmnt .A-) • Permit application processing fee (see Attaclunent A) • Two copies. of plans and specifications including: • Detailed narrative description of stormwater treatment/uianagemeat • 'Two copies of plans and spedfications, including- - Development/Project name --Engineer and firm - Le- end - North arrow - Scale - Revision number & date - Mean high water line - Dimensioned property/project boundary - Lpcation map with named streets or NOR numbers - Original contours, proposed contours, spot elevations, fistished floor elevations - Details of roads, parking, cui-de-sacs, sidewalks, and curb and gutter - Wetlands delineated, or a note on plans that none exist - Existing drainage (including off -site), drainage easements, pipe sizes, runoff calculations - Drainage basins delineated - Vebetated buffers (where required) VIL APPLICANTS CE,F-=CAT70N I, (print or type acme of person listed in G 7=1 Infvrnation, item 2) Clarence Willie certify that the information included on this permit application form is correct, that the project will be constructed in confo=ance with the approved plans, that the deed restrictions in accordance with Attachment Mf this fo= ��`� be recorded Ttitt-1 4 required permit carditions, and that to the best of my knowledge the proposed project mplacs with the r is of ISA NCAC 2Fi .1000. S's8re Date: T Assistant Superintendent ft� Form'SWU-101 April 1998 Page 3 of 4 Oct-14-98 09:34A East Coast Engineering Co 910-754-8049 TTACrILNM-N. -T P.06 1. Deed Restriction Language The foUatving staternents atus: �-e recorded :cr all lc',V densit-- _rajec:s and for all =:,Jects t1lat involve the SUbdj-,4,Si0n and selling of lots Or outparCes: I. So more than square fern ,:r arty tot, inctud;- g that portion of : �.= r- ht-ef wash oetween the edge of pavement zrtd the front Ic_ tine, shall be =zrzi brr impervious st: -bra inc:ud:ng asphalt, gravel, cor.� ate, br._6, sc;,rw, slats or sir.r.=_Tr nsat�.al but not :..c::�dfng mood decking, or the 3urfara of s i—. -Ming pacts. -s coserant is to insure car. ,:led oomplranre with dw star- water permit issued by the Sete of North G:"'fista. The covenant -=v. not be changed or defgted without the consent ;F State. .:pe, or y rc rd �-.c�, r '.r, prorn = i:num _. Na me may II ... ads c s W a. _ as necessa v de a rn n drzunvay crossing. NOTE. If Iot sizes varr sigRijxcandy, the c ut provide an attac;.y e_ntiist g eac11 lot rnumber, size and, the allowable built -upon are_ for ea44 lot. For cc=erz�ai proje = that have outparc•es or futu_*a deve:ov�e-*it the followixig 5:ate=lmts must also be recorded: 3. The canner!-fon frctn the outparr—ri or furars area inra the stvrmwater syscm must be made into the forebay s=c that short --circuiting, cr the ;.rstem does not ecc-1r. 4. All built -upon arm; from the ou-*rarcei orjuture de:.eiapment must be Qzre^:ed into the permitted stormtwatar control system. s.. Built -upon area in =cess of Ou pe.-7nftA_-d amount wul require a pewit meadff azdan prior to cant uctImu For amid outlet systems, the following state�xt in addition to ite,=s 1 and 2 above --nest be recorded: 6. No ov may pipe, ftll in or alter a=f desgnated 100 foot long grassed s',waie used to mtee: the requirements of NCAC C ZH .1008(g). 2. supple nwtFaaas The applicable supplement form(s) listed below must be subadm-d for each BUT specfied for this project; Form TvVU-102 Wet Detervion Basin Sug_vIenient Form SWU-103 "'Inultrati0ri $ sin SuppIeMLEW Form SWU-104 Low Density Suppl—A—Tt Foxoa SW-U-105 Curb Outlet System SU' PPIPMerme Fora: SW7J-106 Off -Site System Suppiewan Farm SWU-107 Undergmund Infiltat3on TzenchSuppleanmnt Form SWU-108 Neuse River Basin Nutri=t M4tiageatent Strategy Suppiment 3. Femrit Application Fees (check made payable to NCDM'4R and subinitted to the appmpdate Regional Office) Type of Permit Law Density High Density Other Dim ntar's Certification Genera! Permit New, ModUiczdam or Late Renewal S=5 S385 SZr 9 $350 S50 T•i aeiy Renewal Widbout iviodi&estion v/a SUS as n/a Form SWU-101 Apr4 1998 ftF 4 of 4 Oct-14-98 09:33A East Coast Engineering Co 910-754-8049 P.O1 East Coast Engineering Company, P.A. Consulting Engineers PAGE 1 OF _._ 9 (including cover page) TO; Ms. Linda Lewis OF NC Division of Water Quality 127 Cardinal Drive Extension, Wilmington, NC 28405 PI10NE# (910) 395-3900 FAX A (9 ] 0) 350-2004 SUBJECT: Bolivia Elementary School Linda: DATE: 10/ 14/98 FROM: David B. Bowman, P.R of: East Coast Engineering Company, P.A. 4918 Main Street PONL Office Box 2469 Shallotte, NC 28459 PRQNI, # 910.754.8029 FAX # 910.754.8049 Permit No. SW8 980733 Following is the revised application for Bolivia Elementary School. I have stated in my response to your letter that there are no wetlands on site. Please call to let me know if this will suffice, since the original mylars of the plans are now with the Architect. If I have to, I will have them sent hack to me to add the note to the plans, but the time delay would seem a bit unworthy. Further delays on this project may cost taxpayers thousands of dollars in remobilization charges .Please call me to let me know if there is anything we can do to expedite this approval. Thank You, David The information contained in this transmission is privileged, confidential, and is intended only for the use of the individual or entity named above. You are not permitted to copy of distribute this communication if you are not the intended recipient named above or the agent of the intended recipient authorized to receive this communication or responsible for delivering it to the intended recipient. If you have received this communication in error, please notify our office immediately by telephone. Thank you. Oct-14-98 09:33A East Coast Engineering Co 910-754-8049 P.02 East Coast �? Engineering Company, P.A. 4918 Main street Fax: 910.754.R049 Consulting Engineers Punt Offices [lox 2869 Office: 910.754.8029 9hallotte, NC 28459 Wednesday, October 14, 1998 Ms. Linda Lewis, Environmental Engineer Division of Water Quality North Carolina Department of Environment, and Natural Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405 Subject: Bolivia Elementary School Brunswick County, North Carolina Dear Ms. Lewis: We received your request for additional information for the above mentioned project, dated October 13, 1998. We offer the following responses to your comments, 1. Page 3 of the application and low density application have been initialed, 2. Low density calculations have been added to the low density supplement in the calculation box provided. 3. There are no wetlands located on this site. As we have previously discussed, this project has an extremely tight time schedule in order to coordinate construction with the school schedule. The building inspector will not issue a building permit for any work until we have an approval letter from your office. Since these were such minor comment items , if there is any way that you could accelerate the review process, it would be greatly appreciated. Should you require any additional information, or have any comments, please do not hesitate to contact either Alan Lewis or myself at our office. Sincerely, 44��' David B. Bowman, P.L. President East Coast Engineering Company, P.A, Enclosures pc: Greg Long, Shook Design File: 97-0153.1 (Bolivia Elementary School) Oct-14-98 09:34A East Coast Engineering Co 910-754-8049 P.09 East Coast Engineering Company, PA. 4918 Main Sheet Fax: 910,754.8049 ConyultIng Engineers Post Offiu »ox 2869 Offiec 910.754.8029 5hallotte, NC 28459 Bolivia Elementary School Stormwater Summary Total Site Area = 467,482 SF Existing Impervious Area = 169,588 SF Proposed Total Impervious Area = 174,106 $F Proposed Increase in Impervious Area = 4815 SF Existing Percent Impervious Area = 36.3 % Proposed Percent Impervious Area = 37.2 % P-roltQsed Stormwater Cp[lection: Drainage Area #1: Currently 17,010 SF of impervious area drain to a tributary of Middle Swamp through a curb cut and flume in the existing parking lot. The proposed development will drain 10,425 SF to the same curb cut (most of this is existing asphalt). An additional 12,175 SF of building area will be collected in roof drains and discharged into a vegetated filter above Town Hall, into the same tributary, Drainage Area #2: Currently 57,779 SF of impervious area drain to an existing system of catch basins and piping, and is discharged through an existing pipe to the tributary of Middle Swamp. The proposed development will drain 57,235 SF of impervious area (combination of existing and proposed impervious areas) to piping system and discharge to tributary through the existing pipe. The number of inlets will not increase, althbugh some piping and inlets will be relocated to route them around the proposed buildings, Drainage Area #3: Currently 31,172 SF of asphalt parking area sheet flows off at the southern corner of the parking lot. The proposed development will have 31,709 SF of impervious area sheet flow to same location. Drainage Area #4: Currently 3168 $F of asphalt drain by sheet flow into the NCDOT drainage ditch. Proposed development reduces this sheet flow to 2103 SF of asphalt area. Oct 13 '98 9:06 0 K 8-9107548049 State Of North Carolina Department, of.E4yirorlinent jm4 Natural Resources' wilmingtoii Regional Office Wayne McD4vitt, Secretary James B.' Hunt, Governor M..) ''SHEET ; Q iges.- Datc. �Frq. LbId 2- L To; ZQwtizn FAX* D k) 395-3"0 FIX (919) 3JO4004 :An Equal 00p'artPnity Abrinpilve Action IMPIQYtr Ir. . State 6f North Carolina Department of Environment and Natural Resources Wilmington Regional Office James B. Hunt, Jr., Governor Wayne McDevitt, Secretary Division of Water Quality October 13, 1998 Mr. David Bowman, P.E. East Coast Engineering PO Box 2869 Shallotte, NC 28459 I 'TI TO."WA, NCDENR NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES Subject: ACKNOWLEDGEMENT OF RECEIPT AND REQUEST FOR ADDITIONAL INFORMATION Stormwater Project No. SW8 980733 Bolivia Elern d ry Brunswick County Dear Mr. Bowman: The Wilmington Regional Office received a Stormwater Management Permit Application for Bolivia Elementary on July 23, 1998. A preliminary review of that information has determined that the application is not complete. The following information is needed to continue the stormwater review: 1. Please have Page 3 of the application and the low density supplement initialled. 2. On the low density supplement, please demonstrate compliance with low density in the calculation box provided at the bottom. The method to demonstrate this is to subtract the existing impervious area (169,588) from the overall site area (467,482) to get the "adjusted site area" (ASA). The ASA is then multiplied by the appropriate density factor, 30 % in this case, and the product is the allowable built -upon area for the expansion. This number is then compared to the proposed increase in impevious area, (4,815) to see if the increase is less than or equal to the allowable. 3. Delineate all wetlands on site, or note on the plans that none exist. 127 Cardinal Dr. Ext., Wilmington, North Carolina 28405 Telephone 910-395-3900 FAX 910-350-2004 An Equal Opportunity Affirmative Action Employer 50% recycled/10% post -consumer paper Mr. Bowman October 13, 1998 Stormwater Project No. SW8 980733 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 November 13, 1998, 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 have any questions concerning this matter please feel free to call me at (910) 395-3900. Sincerely, Ms. Linda Lewis Environmental Engineer RSS/arl: S:\WQS\STORMWAT\ADDINFO\980733.00T cc: Linda Lewis Clarence Willlie Central Files East Coast Engineering Company, P.A. 4918 Main Street Fax: 910.754.8049 Consulting Engineers Post Office Box 2869 Office: 910.754.8029 Shallotte, NC 28459 Wednesday, July 22, 1998 Ms. Linda Lewis, Environmental Engineer Division of Water Quality North Carolina Department of Environment, Health, and Natural Resources 127 Cardinal Drive Extension Wilmington, North Carolina 28405 Subject: Bolivia Elementary School Brunswick County, North Carolina Dear Nf�� s: We are pleased to submit two copies of the Stormwater Plan for Bolivia Elementary School. We have enclosed the review fee of $225, two copies of the application, and two copies of the calculations, and stormwater summary. Although this project does not clearly fall into either the low or high density criteria, we ask that it be given consideration for the low density option. From the stormwater summary, it is obvious that we are changing the amount of impervious area a relatively small amount. Although we are proposing that we utilize some of the existing piping, we are actually decreasing the amount of impervious area draining into the existing system. By discharging the majority of the runoff from the new building into a vegetated filter, this design is decreasing the amount of parking lot runoff that currently is discharged directly into the tributary through an existing curb cut. We trust that you will find our submittal package in order. Should you require any additional information, or have any comments, please do not hesitate to contact either Alan Lewis or myself at our office. SToRMWATER ErFIyE JUL 2 3 1998 I PROD # ®� M Enclosures pc: Greg Long, Shook Design File: 97-0153.1 (Bolivia Elementary School) Sincerely, David B. Bowman, P.E. President East Coast Engineering Company, P.A. TRANSMISSION VERIFICATION REPORT TIME 07/20/1998 15:57 NAME NCDEH/WILMINGTON FAX 910-350-2004 TEL DATE, TIME 0/ 0 15:57 FAX NO./NAME 7 8 DURATION RESULT O�. MODE / `"STANDARD / ECM ��U State of North Carolina Department of Environment and Natural Resources Wilmington Regional Office James B. Hunt, Governor Wayne McDevitt, Secretary FAX COVER SHEET Date: '(-W -c!`$ To: v IJF30uxn zk _ CO: e FAX #: 910 IS+ 35 REMARKS: No. Of Pages: I. From: bl 1 s �eivr`5 CO: FAX#: 910-350-2004 M 6 127 Cardinal Drive Extension, Wilmington, N.C. 23405-3845 Telephone (910) 395-3900 Fax (910) 350-2004 An Equal Opportunity affirmative Action Employer Date sent: Mon, 20 Jul 1998 13:17:07 -0400 From: "Jeanette Powell" <jeanette—powell@h2o.enr.state.nc.us To: Alida Lewis <Lnda lewis@wiro.enr.state.nc.us> Copies to: Bradley Bennett<brad ley_ben nett@h2o.en r.state. nc. us> Subject: Re: Bolivia Elementary I talked to BB about this one and we both are leaning toward low density, but need more info on the project. 1. How much impervious area are they adding? 2. How much total impervious are they up to? 3. What happens to the flow discharging from the collection system? 4. Are they adding any collection? I can't tell from this plan whats new (if any) and whats existing piping. 5. Are they routing all the new stormwater to the existing system or proposing to do something else with it? It looks like some sheet flows off the west end of the parking lot, but sheet flows to what? �F Alida Lewis wrote: > Dear Jeanette: > The Bolivia School that you thought looked like redevelopment does > not meet the definition. There will be more impervious area than > previously existed. They don't want to give any up. Can I permit as > low density with an existing collection system? > Linda Mailto:Jeanette_Powell@h2o.enr.state.nc.us North Carolina Department of Environment and Natural Resources Division of Water Quality Stormwater and General Permits Unit (919) 733-5083, ext. 537 Alida Lewis qr0 -- 1 -- Mon, 20 Jul 1998 14:55:42 Date sent: Tue, 07 Jul 1998 10:16:12 -0400 From: "Jeanette Powell"<jeanette_powell@h2o.enr.state.nc.us To: Linda Lewis <Iinda lewis@wiro.enr.state.nc.us> , Bradley Bennett<bradley_bennett@h2o.enr.state.nc.us Subject: Responses to Questions Bolivia Elementary School Based on the plan we have on file up here, this project looks like redevelopment. One existing parking lot is being converted to a building and one existing parking lot is being reconfigured to include islands. Can the islands be used for bioretention with curb cuts? How much exisitng area is available on -site to meet MEP? And is the S/ECP the trigger mechanism for the state permit? Mai Ito: Jeanette Powell@h2o.enr.state.nc.us North Carolina Department of Environment and Natural Resources Division of Water Quality Stormwater and General Permits Unit (919) 733-5083, ext. 537 Alida Lewis -- 1 -- Wed, 8 Jul 1998 07:53:03 Date sent: Tue, 30 Jun 1998 09:53:50 -0400 From: "Jeanette Powell"<jeanette_powell@h2o.enr.state.nc.us To: Alida Lewis <Lnda lewis@wiro.enr.state.nc.us> Copies to: Bradlev Bennett <bradley_hen ne. t@h2o.enr.state.nc.us> Subject: Re: Bolivia Elementary School Alida Lewis wrote: > Dear Jeanette: > The concern with Bolivia Elementary is that the site is existing, > and proposes to reconstruct an existing parking area into a > new building, and add new parking to another existing parking > lot. The problem comes in due to the existing collection system > which will collect from the new building, but the engineer says > that no more runoff than before will enter the system. I just > needed to know how to permit the new development. My understanding here is that no new impervious drainage will be routed to the existing storm sewer system b/c the new building will occupy the same impervious footprint as an existing parking lot which already drains to the system. However, new parking will be added, so redevelopment is out. I'm assuming there is enough property involved to consider low density if it weren't for the collection system. What do they propose to do with the drainage from the new parking lot? > Linda Mailto:Jeanette_PoweII@h2o.enr.state.nc.us North Carolina Department of Environment and Division of Water Quality Stormwater and General Permits Unit (919) 733-5083, ext. 537 Natural Resources Aiida Lewis -- 1 -- Wed, 1 Jul 1998 07:49:34 LEGEND PROPOSED ASPHALT PROPOSED STRUCTURE PROPOSED CONCRETE EXISTING ASPHALT/CONCRETE TO BE REMOVED EXISTING ASPHALT TO BE REMOVED EXISTING STONE BASE TO BE REGRADED EDGE OF EXISTING ASPHALT PAVEMENT REMOVE EXISTING ASPHALT AND STONE BASE U.S. HIGHWAY 1 ------------ --------------------------------------------- --------- ------- / I -REW E _,EXISTJKG ASPH AND RE RAD STRN—F E r� ^N 35.3Q.,00_L E�55. 27 REMOVE EXISTING ASPHALT AND STONE BASE �y ^ / off` �000000�00000000� Rio � 1 REMOVE EXISTING ASPHALT REMOVE EXISTING ASPHALT i I � �, AND STONE BASE AND STONE BASE li I, I I I I � I � REMOVE EXISTING ASPHALT AND STONE I BASE 1 � REMOVE EXISTING CONCRETE SIDEWALK — — — — — — — — — — — — — — — — — — — i i 7-----------------.�\ � I i SAWCUT EXI TING CONICRETE I i TO REMOVE/ AS SHOWN —� I i I 1 0, wowl�� ■ oe :�.o�Oeoee.Qe!e!o�o�O�O:ele!:oe!:e!Oei•�Q:ooe:O:QeO�oeaoee�elo!:Q:e!��eeo,®®,�\. �.. *tom CONSTRUCTION SEQUENCE STORMWATER SUMMARY 1. TOTAL SITE AREA = 467,482 SF 2. EXISTING IMPERVIOUS AREA = 169,588 SF 3. PROPOSED TOTAL IMPERVIOUS AREA = 174,106 SF 4. PROPOSED INCREASE IN IMPERVIOUS AREA = 4815 SF 5. EXISTING PERCENT IMPERVIOUS AREA = 36.3% 6. PROPOSED PERCENT IMPERVIOUS AREA = 37.2% IjjI REMOVE EXISTING CULVERT 1. Obtain approval of the Erosion Control Plan from the North Carolina Department of Environment, and Natural Resources (NCDENR), Land Quality Section. Obtain the Stormwater Plan from NCDENR, Division Water approval of of Quality. 2. Install construction entrance. C-) 3. Install silt fencing. 4. Install inlet protection. Gj 5. Grade site. 42i 6. Construct building. 7. Install gravity sewers, storm drainage system, water system. SITE 8. Construct concrete sidewalks and asphalt pavement. 9. Stabilize all disturbed areas not to be paved with vegetation capable of withstanding erosion. 10. Maintain all temporary erosion control measures until permanent ground cover is established. A LOCATION MAP REMOVEEXISTING CULVERTS REMOVE EXISTING ASPHALT AND STONE BASE A. ....... ... t - rit T REMOVE E ISTING" ASPHAL AND RE DES 0 . Ss. 27' 9f. RE OVE EXISTING ASPHALT A STONE BASE DRAINAGE AREA- #3 p, .... ...... .... ... ........ REMOVE EXISTING ASPHALT REMOVE EXISTING ASPHALT AND STONE BASE AND STONE BASE N. D AI' A .. . .... ........... A, �ZY. is J NEW EQUIPMENT YARD (ALT A.1)" a. J MOVE EXISTING ASPHALT D STONE BASE REMOVE EXISTING CONCRETE SIDEWALK \\\--REPLACE EXISTING SAWCUT EXISTING CONCRETE CONCRETE SIDEWALK TO REMOVE' AS SHOWN (ALT A. 1 1. EXISTING BLDG 400 1. 05#!#!WA8U 050522! PE 77., 6291 a- 0 Pomp-, N&A Eli REMOVE wtf-- EXISTING BLDG 100 LEGEND ......... . PROPOSED ASPHALT ............ PROPOSED STRUCTURE PROPOSED CONCRETE EXISTING ASPHALT/CONCRETE TO BE REMOVED EXISTING ASPHALT TO BE REMOVED EXISTING STONE BASE TO BE REGRADED EDGE OF EXISTING ASPHALT PAVEMENT U.S. HIGHWAY 17 BUSINESS —REMOVE EXISTING ASPHALT AND STONE BASE ...... . ... � w. 1 '4 DRAINAG EA Will' AR- .. .. ....... . i. EXI TING,, -4 RCP 5"0. RCP %P X1 TIKI '1A , ff EHAI P EMOVE AND STONE wtASE CONCRETE PAVING el ' '.. At V t= J LOW 11111 9 V/, REMOVE EXISTING STORMI)RAIN PIPE 4it EXISTING BLDG 200 rn BLD, 400 KEY PLAN S 1`1 0 0 K on. MID, E S H G N The Atherton Mill 2000 South Blvd./Suite 510 Charlotte, NC 28203 704 377.0661 FAX 377.0963 4, 3 h, C E I V E JUL 2 3 1998 P R 0 J 4 LMAO �_73 BOLIVIA ELEMENTARY SCHOOL US HWY. 17 Bolivia, NC EAST COAST ENGINEERING COMPANY, P.A. Shallotte, North Carolina 28459 4918 Ma*n Street - P.O. Box 2869 910.754.8029 Revisions/Updates BID ISSUE 03 JULY 1998 Project Number 7083 Date 15 JUNE 1998 This Drawing is the property of Shook Design Group, Inc and is not to be repr9duced or copied in whole or in part. It is only to be used for the project and site specifically indentified herein and is not to be used on any other pro)ect. It is to be returned upon the written request of Shook Design Group, Inc. @ Copyright 1997 Shook Design Group, Inc. 'p X1, `14"J"A 1 10441 t f W 6"'1 \a