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HomeMy WebLinkAboutSW8111117_COMPLIANCE_20121201STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE ❑CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE AO[AoDI YYYYMMDD Central Files APS_ SWP- 10/01 /12 Permit Number SW8111117 Permit Tracking Slip Program Category Status Project Type State SW Active New Project Permit Type Version Permit Classification State Stormwater 1 00 Individual Primary Reviewer linda Lewis Coastal SW Rule Coastal Stormwater - 2008 Permitted Flow Permit Contact Affiliation Facili Facility Name Major/Minor Region 966 Ocean Boulevard West Stormwater Plan Minor Wilmington Location Address 966 Ocean Blvd W Holden Beach Owner Owner Name Kay DateslEvents County New Hanover NC 28462 Facility Contact Affiliation Owner Type Individual Brody Owner Affillation Kay Brody 209 Lindamans Dr Cary NC 27519 Scheduled Ong Issue App Received Draft Initiated Issuance Public Notice Issue Effective Expiration 10/01/12 05/03/12 08/23/12 10/01/12 10/01/12 10/01/20 Regulated Activities Requested/Received Events State Stormwater - HD - Infiltration Deed restriction requested Deed restriction received Additional information received 06/05/12 Additional information requested 06/11/12 Additional information requested 08/23/12 Additional information received 08/29/12 Outfali NULL Waterbody Name Stream Index Number Current Class Subbasin INFILTRATION BASIN ANALYSIS FOR PHASE II AND 2008 PROJECTS Formula FILENAME fS 1WQMstormwat!& rmits & profects120111111117 HD12012 10 excel_IB 111117 User input PROJECT NUMBER SW8 111117 Current Date 01-Oct-12 PROJECT NAME 966 Ocean Blvd West Original Run Date June 8, 2012 DRAINAGE BASIN LBR59 REVIEWER IL Lewis RECEIVING STREAM ICWW CLASS I SA HOW Index No 15-25 If ORW, is site within the 575' AEC? Y N RULES ("2008" or "Ph2") 2008 (Use a wngle quote (_) before entering 2008 PROJECTAREA 0 1318 acres Overall DA I 4537 sf = 0 10 acres 4537 sf (reduce overall DA by_previousty permitted BUA amount) DA for Proposed BUA - 0 sf assume DA = previousl BUA) DA for Prev Permitted BUA _permitted IMPERVIOUS AREA CALCULATION I P,revicusly1d Prop BUA BUA dl cliff 0S_ C value BUILDINGS 1783 _ 1 PARKINGIASPHALT 775 0 98 CONCRETE 095 OFFSITE ? OTHER/FUTURE —� f 7 Overall % IMPERVIOUS, 1= --564%1 New BUA % Impervious = 56 4% Ex BUA % Impervious = - 0 0% VOLUME CALCULATION Previously permitted BUA Design Storm Previously permitted BUA volume 1 yr 24 hour precipamion depth (inches) Predevelopment C value from consultant 1 yr 24 hr Pre -development volume 1 yr 24 hr Post -development volume 1 5" volume for New BUA 2008 Design Volume Phase 2 Design Volume 005 t 056 - 0 05 `' 056 005 005 inches (mosttrkery t or 1 5 ) cf from NOAA chart does not Include exlshng SUA cubic feet cubic feet cubic feet cubic feet cubic feet 0 385 .T 73 t 811 316 4 v, 739 =; 316 SURFACE AREAS 1 ELEVA 80770M Bottom 70P/BYPASS TIONS 1 VOLUMES Elev ft Areas ft Inc Volume cc Volume 510 500 510 _71- 700 510 - 1020 = 1020 VOLUME PROVIDED 1 102000 1 cf SOILS INFORMATION ELEVATION OF 10 YEAR STORM (WAIVE BYPASS & VFS) Runoff depth for 10 yr 24 hr storm, inches 723 from NOAA chart Volume of 10 yr 24 hr storm =�;7650 1524 CF Volume infiltrated in 24 hours = CF, at T=1 day, V= (2 x k x A) Remaining volume to store = 6126 CF OK? YES Note- the total volume provided must be larger than the remaining volume to store COMMENTS Volume and drawdown are 1 are not within Design Requirements DIVISION OF WATER QUALITY INFILTRATION SYSTEM INVESTIGATION Complete and email this form to Vincent Lewis@ncmail net if there are more than 7 areas to be tested, attach a second sheet`- -/�State Soil Scientist Confirmation Visit date/time: � _a Project Name Quaintance/Brody Site SW County Brunswick Street Address 966 Ocean Boulevard West Holden Beach NC Directions from the nearest intersection of two major roads- From intersection of NC 130 and Ocean Blvd travel west 4 1 miles Site is on the ri ht >1 acre being disturbed? ❑YES ®NO CAMA Major required? ®YES []NO Consultant Name Donald M Covil Phone (910) 755-5872, (910) 470-1567 Consultant Firm Name Compass Pointe Engineering. PA Bore Number 1 2 3 4 a Existing Ground Elevation 468 414 450 391 s °'s ; g?~ b Pro used Bottom Elevation 568 514 517 491 c Difference a minus b -1 00 -1 00 -0 67 -1 00 , a W;t d Add 2 ft Min Bore Depth) 1 oo 1 oo 1 33 1 1 00 IN, e Hardpan Depth? n/a n/a n/a n/a i A2prox Elev Of SHWT 368 306 317 291 Max lowest bottom elev 568 514 517 491 ' "Fl, 6ftw h Infiltration Rate OK? * AN' '0MW i Confirmation of SHWT * Zy" igm.z For projects requiring more than 5 hand borings, manpower or equipment to conduct the excavation must be provided by the consultant "State Soil Scientist Use ONLY Comments As indicated in B M Lona & Associates 3/7112 Soils Report, there is at least 12" of suitable soils above the SHWT at each of the four potential infiltration basin locations It is proposed that an additional , 12" of fill be added to provide the re uired 24" separation from the SHWT The fill material shall be of the ty already on site (Corolla) or another type approved by DWQ Required Attachments 1 Legible vicinity map 2 Complete Soils Report 3 PDF formatted site plan with the boring locations to be tested Site plans should be emailed or hand -delivered only Illegible faxed maps will not be accepted All proposed infiltration areas and existing, active utility lines located within the proposed basinitrench must be marked and flagged If these areas are not flagged, the Soils Scientist reserves the right to declrne to do the investigation If the proposed infiltration system will be located in an area of existing pavement and there is no open area nearby, equipment 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 appropnate professional The Soils Scientist will only venfy 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 StWQSISTORMWATERIFORMSIinfiltration site visit Revised 3/08 i Print Preview Page 1 of l Brunswick County, NC fig, r„ DRIVE i �r d � � 3 WTRACCISTAL WAT&RWAY G GNI y SAIL \^7y W U i V 1 ! 1 lllllll� It" IT Vki yt ��� kph t�ta, ���€. trm+t°Fl� IL 3 ' �fJr :�mtll -, Iik E 'V Disclaimer Map and parcel data are believed to be accurate, but accuracy is not Map Scale guaranteed This is not a legal document and should not be substituted for a title search, 1 inch = �Op feet appraisal, survey, or for zoning verification =3 http //gis brunsco net/prmiPreview aspx9PrintOptData=Brunswick County, NC17101truelfalselfalselfalselfal 3/22/2012 B M. Long & Associates P O Box 1 1 17 * 6609 Ocean flwy West * Shallotte, NC 28459 Phone (910) 754-6300 * Fax (910) 754-5486 -LAND SURVEYORS * PLANNERS - WE SURVEY THE LAND AND ANYTHING THEREON March 7, 2012 Michael Norton Compass Pointe Engineering PA 5041-3 Main Street Shallotte, NC 28459 Re Storm Water Infiltration Study Tax Parcel #245FA005 Lot 83 S-B Colonel Beach 966 Ocean Blvd West Dear Michael On March 7, 2012, 1 made an evaluation of the proposed storm -water infiltration at the above site The purpose of this evaluation was to describe the soil profile, quality the depth to the seasonal high water table to determine soil texture, to identify the infiltration ratio and to inform the project engineer of any potential limitations to this project The soil on this site is mapped Corolla in the Soil Survey of Brunswick County USA 1986 Actual soil borings confirm the soil to be in the Corolla soil series The Corolla soil can best be described as somewhat poorly diained soils on the Coastal Barrier Islands in low areas adjacent to undulating sand ridges Most areas are long and irregular in width and shape The seasonal high water table is normally evident by observation of redoximorphic features and soil color suggesting past condition of saturation and reduction 1 here is evidence of soil color from the four holes that I dug and it v5 in) opinion that the seasonal high water on hole #1 is 12 inches, hole #2 is 13 inches, hole 43 is 16 inches and hole #4 is 12 inches from the natural soil surface (see map for location of holes) In summary, the test holes were placed on this lot upon project engineer's request For difference in elevations see enclosed map which identify the elevation of each hole There is 553 sq ft of this lot that is impacted by wetland as shown on neap 7 he coastal wetlands and the 404 USACF line was flagged on 08/17/201 1 (see map) I here are areas of concern and should be addressed before and after construction of any kind take place It is expected that from the four soil borings that were dug on this lot, the infiltration rate is in a range of 15 to 20 inches per hour Soil Profile Description (Test Holes) Pest I lole 4 1 0 —1" Very dark grayish brown (I OYR 3/2) fine sand 1 —12" Brown (I OYR 5/3) file ,and 12 — 21" Light brownish gray (1 OYR 6/2) fine sand 21 — 27" Very dark grayish brown ( I OYR 3/2) fine sand 27 — 38" Dark brown (I OYR 4/3) fine sand 38 -- 52" Greenish gray (5G 511) fine sand 52" + Fine sand — soil is saturated with water Elevation at this hole is 4 68 I est 1 lole 412 0 — 8" Very dark grayish brown (1 OYR 3/2) fine sand 8 —13" Brown (l OYR 513) fine sand 13 — 16" Brown (I OYR 513) fine sand with grayish brown (1 OY/R 5/2) and yellowish brown (1 OYR 6/6) mottles 16 - 28" Grayish brown (I OYR 5/2) fine sand 28 — 48" Greenish gtay (5G 511) fine sand 48" + Fine sand — soil is sattitated with wales Elevation at this hole is 4 14 Y 2 I PestIlole 43 0-16" Brown (I OYR 5/3) fine sand 16 — 33" Dark grayish brown (I OYR 5/2) fine sand 33 — 48" Greenish grav (5G 511) fine sand 48" + fine sand -- soil is saturated with water Elevation at this hole is 4 50 Test Hole #4 0 — 2 ' Very dark gi ayislt brown (1 OYR 3/2) fine sand 2 — 12" Brown (10YR 5/3) fine sand 12 — 16" Brown (1 OYR 5/3) fine sand with grayish brown (I OYR 5/2) and yellowish brot%n (I OYR 616) mottles 16 - 28" Grayish brown (1 OYR 5/2) fine sand 28 — 48" Greenish gray (50 511) fine sand 48" + Fine sand —,soil is saturated "ith water Elevation at this hole is 3 91 Note Bench Mark Elevation was taken from survey by Gary Gurganus, PLS dated 9/2/2011 If I can be of additional assistance, please advise Sincerely,SnOIL sc Bobby M Long, LSS # 1 145 t Attachment # 1 Attachment #2 �` 1146 Attachment #3 G� �Rll'H 3 TT - -----_ — A MY Ilvl I NHWL localod approximately t to TOA 17 1 _ 7 100 feW narth of 51E ir N 2. Led Property Line Coastal Wettcnd Line N E20]fYE 5 � .- Ccrstwwru,lno LMRappatl ei oENn L[rfI1W 617 t1/� �5� ' I A6 l r pO y 2759L 4 vmpoe.e 911apuM1e, i SYI Fence 1 r, .' I fn Pod wm+ Li—kxq �` 3 - at r LOc li Y xs I < k .t ��:./r i NBr WalE t} fl y r r .ea.++. r rr-q Rock Drive 5 41 461U w 'lei1 E 404 Wetland _ Proposed 404 WrTland impocts SG+rL6 1 10 ^` � 7LM YN1 Nnr hU Il�✓r YIwuC .AEa�.ay.+ne+1/ ,S.aa� 7,�� r cra-asx-onar 3 � Lin. Flaa1 MAZE 0e4 b+7 1 t -404 Wetland tmgact 5$3 V (0 Ot 130 II fIi I ?N 0 4- mti 3 e9 I i pRFL€M)NARY NOI FOR LONSMUCTION Drawing Is or CAMA14041401 pormiting pwpo>ses Onty �.r+e.r..I.r... r.o...e k rw. w.s b w E n� r�iea� Y...R�v„Wwl.w trMNn �, ny w.i..n.a�..'r� I Wwn w. e.r,l ,F 9Vp I I CAR[%''` .%t'�1A R A t, IA1 a Aa,f d l.rV 4 r+A .Jtprroa a ...+NYDfr .16 1F (1, ^1 r It, . w At lI + n Mil rle tY,ttYIV N Jt . r+1n l � 7 tilA n A �1 Vi-I i t h t5 rL[ f0 W}+lYlNI E m v-t T44 s w f S iw n N rK11-. , n lY lM-0 N Nlq Nh N( Nf H n rM- M, N4) L i 1, b'�� .rJ,t IHlllcl Al r4 � rt { r � iy 1�_ h 'i % fli7 1D + rt2H 11kL 11 EN^L % 9 113 `+ ill 11 rr"1 4 tNe A r 4. c 61 ,40iie a9 ha rE1r rC r lr yy hk w 3 MR cmwFII in Yr 19, jfl GNtr l OAR aµ wT.Y c' S Ma +Xm w a grg1N0 4YS +M L' sdl f"41 gt711�t C1 w 2 11r 57 U ¢x �CAROLINA'S N f2� EASTERN CONSTRUCTION & DEVELOPMENT CORPORAIJON DLED BOOK t199 PAC- i?.n 0"3141 CAI" WETLAND VIS _ - - - IJNF PIAWA11 UV DFNR 404 Ii N,AIkD d-17 11 Wf I1-ANO tar to I Ii K19g,1 `•� ER _t. - '" 5^i CHI 13 fTiD 7 ` Jr !?CS L 1q 1 _ �S , aV 93,E r • -; - - --_l ....3E 'JoI uNr ,y.&� ' t'r'y' U�.,'aW S L m 1 LIFI-A4 r� � j 4$ +LOCAI 17 a >r u ( t I 1 1} I h fWyR I I )� Ok' Pr4it \` Jw[s1LA.vP ; w ;r 11 NAP,ATEf 10i1 T 1 4 Cr t i1 ' Y is ADDITION 10 1 i COLONIAL BEACH I LOT 8s fw ,} SUBDIVISION (vACANT LO y� . WAR 6OOW 16 PACE 41 4 1 SECTION �, t$ �1 i SA L3 . 4 1s ' I ADDITION TO '; ; LOT 83t� COLONIAL BEACH (; VAC LOI"T "' r4 I, 4 SUBDIVISION LW BON IS PACE 41 I I ,11 IJPLAND1 ( } ,41 i IIII ly-E 1 y"�l.�w Jr 1 I I It Y 5` CED/J! _,�� ;• Ii 11� FHn'l {IC i 1 1t _ - ` Bt�6 D2 ri .'�'� l y, dtur114 fE D15T.N i •� U 5 33.i 42�E 53 tl2 _ 13 Fi Iut l4—�li �l31r�V W Y I7! t fi iJW L...._ M L� r 6a ]2 a5 f _ 11 Ll� -'- rIj r7 5 ?W 75 1 0430 6 _ 1`n N _ L15 _ N IS110A W JLIc !A•J� ; Y 44 11 OJ rl 1 S f i tG S JFJ1 jl N 3L I I +6Y �_r Rt NCHf4AAK NWAG NAX LOT 63 TS n rLOOD HAZ"LJ 1UNL -VE LEASE ELcvx=4 69 — _ "a'—'" ^- WEST ItA.v Sae B I B FEET BASED ON F I ft N 3720201J` O,J �'ANEL CAiE OB-0?-0a ❑ -f,VASFD 01-OP-11 C ALB) LINATION 11IkJllhr.,ll IN OC '' R o F-"A 7C 4 ttl .0 4CMf I ]0 view" Y.w Lr cm I.UT IQ SC.LF EIP O to so.0 wrlrl N[+c fr01w=) 1 �� wRD a W. w ..1r r,[,7 ra raw .. � ate o r.n row wl Clur Ir+Ja•1 4f1 r�li.�r[ �cmuu :11 '"•'"..r.+Y. 1111 1 [m 1x hw roar - 'I-y., _ u ltrr +f"A 01ht^Jl.v t uwI, l+f ��,�1.L�✓� F'57 .C1MN LlC PCN CL _� CIIN� —-.•-'17'i u� wf� UA Vt1 I rV GARY GURGANUS LAND SURVEYING GAk Y L C, MGANLIS P L S `164 HIMCIE, SFACIf RD IV SYDWy No 1h LnC&Ic 28662 (916 31-76D5 -� SUFVE/ F0f2 MICHALL & KAY BRODY ww Fr1 tiI 8) [rrr Ucr� Rvf' ..FSq I SLC r0N R A'41 h nl I) QL 14V. YfAfH SUPOrJI%41Y 1 �h mWK Ir A�F a3 H01 it n rf'M� ilv'13I� 'sCO IW1 CJ 5 • Nr r}Irry J. VS)eK I f PC Ivor) fcL fOln--�9.+ T.MNe1N3'+, Mrk1• V Y / 1 E ifiliNtlx 1 S+ �1 n1 1101 � mi 101101 Print Preview Page 1 of 1 Disclaimer Map and parcel data are believed to be accurate, but accuracy is not Map Scale guaranteed This is not a legal document and should not be substituted for a title search, 1 inch = 100 foot appraisal survey, or for zoning verification httn //,T, o e...., - _. i r