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HomeMy WebLinkAboutSW8060225_COMPLIANCE_20080220STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD �MCICM&C ED TO: NCDENRIDWQ 127 Cardinal Drive Ext. Wilmington, NC 28405 ATTENTION: Jo Casmer .� WE ARE SENDING: X Originals Prints ❑ Specifications Calculations LETTER OF TRANSMITTAL DATE: Feb. 18, 2008 PROJECT NO: 40980001 TASK NO: 40 RE: , Ocean View .st Chur -SW8-060225-C_rf ation TRANSMITTAL NO: 1 OF 1 ❑ Shop Drawings ❑ Samples ❑ Other - Quantity Drawing No. Rev. Description Status 1 PE Certification & Checklist (original) C Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid E. Construction F. For Review & Comments G. For Approval H. See Action Status Code: 1. No Exceptions Taken 4. Amend & Resubmit REMARKS: For your records. 2. Make Corrections Noted 3. Other S. Rejected -See Remarks 243 NORTH FRONT STREET, WILMINGTON, NG 2B401 (910) 343-1048 FAX (910) 261-8282 F cc: John Parker w-encs/John Parker Architects McKIM.8� CREED, PA File w-encs Signed MaCgare Gray 3 rj14 -IYa . _s' i'['� +�� j� 1 �1!� irl, . il' !: li ✓! j�':3' •.t_ f:, ._ •ate v :[_'�' �",. is `.- .. .. .'. «t� :_ '�'i.:. ~` .. ��.en ., �.r-... � -. � -��i '.4' .. 7� �[,f,.., Lam' ��t . , ..1 '_ .�'r: S1�.r',l;_•4^ r (r.,�.ji AiSf3h i 1�J. �`[ s°�r7�Ci .•r L,�. [f•.[ t State Stormwat ' Management Systems rermit No. SW8 060225 Ocean View United Methodist Church Stormwater Permit No. SW8 060225 Brunswick County Designer's Certification I,4 ir as a duly registered in the State of North Carolina, having been authorized to observe (periodically/ weekly/ full time) the construction of the project, -14a_911Sc C.1 (Project) for6V_Y W�c i G, CFK1�i (Project Owner) hereby state that, to the best of my abilities, due care and diligence was used in the observation of the project construction such that the construction was observed to be built within substantial compliance and intent of the approved plans -and specifications. The checklist of items on page 2 of this form is included in the Certification. Noted deviations from approved plans and specification: c"Mr`-aru�rz Registration Number_? Date o SEAL CA ,20 �0 �9< Q SEAL _ 025503 ,If, RD PI_ Page 6 of 7 fill • _ cu �, ``nn iti. CE' t rLs t'Uj t� • .ii 1 (4� �r' `7 State Storm ter Management Systems Permit No. SW8 060225 Certification Requirements: t-fyl 1. The drainage area to the system contains approximately the permitted acreage. �2. The drainage area to the system contains no more than the permitted amount of built -upon area. �3. All the built -upon area associated with the project is graded such that the runoff drains to the system. 4. All roof drains are located such that the runoff is directed into the systern. 5. The bypass structure elevations are per the approved plan. 6. The bypass structure is located per the approved plans. 7. A Trash Rack is provided on the outlet/bypass structure. �8. All slopes are grassed with permanent vegetation. _9. Vegetated slopes are no steeper than 3:1. AA 10. The inlets are located per the approved plans and do not cause short- circuiting of the system. q&A-11. The permitted amounts of surface area and/or volume have been provided. CIA _12. All required design depths are. provided. 13. All required parts of the system are provided. WA-11 The required system dimensions are provided per the approved plans. -0c: N6D:EN D1rRY Q- REgiohai _3ffi6e. Brunswick County Building Inspections Page 7 of 7 INFILTRATION TRENCH ANALYSIS Filename: S:IWPDATAIWQSIINTRENCH1060225 Project # SW8 060225 Date Project Name Ocean View United Methodist Church Reviewer Recvng Stream Intracoastal Waterway Classification Drainage Basin Lumber River Index # Site Area 1.83 acres Drainage Area Impervious Area Calculation Buildings 10454 Streets OS Prkg OS sidewalks Total Volume/Storage Calculation If Rational Method is used, place a 1 in this box 0 Required Provided Design Storm RV Volume to Store Pipe Diameter Length Of a Single run of Pipe Number of Pipe Runs in Trench Storage in Piping Total Storage in Piping Cross -Sectional Area Of Pipe Runs Length Of Trench Width Of Trench Height Of Trench Cross -Sectional Area Of Trench Voids Volume, 40% Total Voids Volume Total Volume Provided Elevation Of Bottom Of Trench Elevation Of SHWT Overflow Elevation ExHitration Rate / Drawdown Reported Hydraulic Conductivity Bottom Surface Area Drawdown Time 25 YEAR 24 HOUR STORM NIA Intensity, i = .33 inches / hour Qr=CiA= Qp through the bottom of the basin= 26-May-06 R. Hall SA; HOW 15-25 79,715 SF 1.83 Acres Rational Cc (list C after each BUA) 1 1 1 % Impervious: Cc- 0.30 3 in 0.17 t34 9��CF 13.1% Pipe Size 9 Pipe Size 2 1 1 Feet 225 225 Feet 1 1 each 177 177 Cubic Feet Cubic Feet 0.785 0.785 SF 225 225 9 9 Feet 2 2 Feet 18.00 18.00 SF 1549 1549 CF 3499 CF 3452-: Cubic Feet 14.75 Mean Sea Level 12.75 Mean Sea Level 16.75 Mean Sea Level 2.9 Cubic Feet Per Hour Per Sq Ft 4050.0 Square Feet hours 0.18 CFS 3.2625 CFS Must be > Or 10 YEAR 10 MIN HIGH INTENSITY EVENT Intensity, i = 6.3 inches / hour Volume for 10 yr. 10 min. event = 2109.21 CF < 3452 CF INFILTRATION SITE VISIT: REQUEST Name of the Project. Ocean View United Methodist Church Location -(attach"a-clear.vteinity-map)-600 -Yaupon-Drive--Oak Island, NC 28465 -- - street address. SR number, community, etc. Directions from the nearest major intersection: see attached ma w/directions from Hwy 133 Own er/Applicant' Name: Ocean View United Methodist Church . Consultant. Name: Margaret A. Gray, McKim & Creed, P.A. . Consultant Contact Information : mg rcraay(abm_-ckimcreed.com Phone, fax, email, etc. #1. #2 #3' #4 45 -#6 #7 #8 Existing ground elev. @basinitrench = 18 Bottom Elev. of infiltration basin/trench =16 Existing ground minus bottom elev. = 2 Add 2' (max. bottom elevation) = 4 (14) Date/Time of Soils Investigation: F', • Msi 13 2aj5 ( on �V Seeoot e Summarv/Comments: All proposed infiltration areas and existing, active utility lines located within the proposed basin/trench must be marked and flagged. If these -areas -are -not -flagged -,-the Soils Scientist reserves the right to decline to do the investigation. If the proposed infiltration system,will be located in an area of existing payement.and there is no open area nearby-egdipment_capable of. breaking through the impervious layer must be provided. The soils investigation does not take the place of a soils report prepared by an appropriate. professional. The Soils Scientist will only verify the soil conditions that are reported in the Soils Report, and make a determination as to the suitability of the site to meet the infiltration ...design requirements under NCAC 2H.1000, and assumes no. liability should the system fail. _ev& I Ile