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Home My WebLink AboutSW6070602_COMPLIANCE_20170807STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE�'r(�`7 YYYYMMDD LMG LAND MANAGEMENT GROUP t c. Environmental Consultants June 16._01^- Chri3 Olives Oliver Oil Company P.O. Rnx 1266 Lumberton. NC 28359 AUG - 7 2017 l I' rr" Reference: Storntwater basin study for the proposed basin area for the proposed Hwy 711 Convenience Center located in Lumberton, NC. Dear Mr. Oliver: On June 11, 2010, Land Management Group_ Inc. had the pleasure of evaluating the proposed stormwater basin area for the NC Hw N, 711 Convenience Center. The purpose of the evaluation was, to describe the soil profile, quantify the depth to the seasonal high water table (SHWT) and to inform the project engineer of any potential limitations of this project. The soils on this site are mapped as the Portsmouth soil series in the Soil Survev of New Robeson County (USDA, 1978). Actual soil borings 1-2 confirms the soil to be a Portsmouth soil series (see Test Area Map Appendix A and soil profile descriptions in Appendix B). The Portsmouth soil series can best be described as soils that formed from alluvial deposits of poorly drained loamy marine sediment on stream terraces in the coastal plain. The seasonal high water table is normally evident by observation of redoximorphic features suggesting past conditions of saturation and reduction. There is evidence of redoximorphic features at less than 12" from the soil surface in borings I and 2 (see Test Area Map Appendix A and soil profile descriptions in Appendix 13). However there has been regional drainage in the area and LMG believes the contemporary SHWT to be 12" from the soil surface. All recorded depths are from the existing surface as noted in the soil profile descriptions, Appendix B. The official published description and physical and chemical data for the Portsmouth soil series are shown in Appendix C for comparison. In summary, this site has an area that is proposed for stormwater basin placement. This area has soils that have seasonal high water tables of less than 12" from the soil surface in both borings 1 and 2; however, due to regional drainage LMG believes the contemporary SHWT to be 12" from the soil surface. If the proposed Permanent Pool Elevation is more than 6" below the seasonal high water table elevation, then additional testing and analysis may be required to determine an adverse affect of adjacent wetlands, surface waters, and/or buffers. Please refer to the NC DENR DWQ February 19, 2009 Memo Article 2 subsections a-d for further guidance. Please do not hesitate to contact me if you have any questions with this report or if you wish for LMG to perform any additional site specific studies in accordance with the NC DENR DWQ guidance memo. 1 maybe reached at 910-4: ^_-000 t. 910-471-0505 or at nhowell n^.dm roup.nel . Sincerely, , Stb sort } �a �� otiras Nicholas Nowell NC T,icensed Soil Scientist. #1294� z3 r www.tmgroup.net a info@Imgroup.net o Phone: 910.45*4 ?- �x: 910.452.0060 3805 Wrightsville Ave., Suite 15, Wilmington, NC 2,13403 • P.O. Box 2522, Wilmington. Nr- 2840j: Proposed NC Hwy 711 Convenience Center Stormwater Retention Basin Evaluation June 16, 2010 *Map Not To Scale* **Map Provided By Others' II 21 1z --171- . " Land Management Group, Inc. Environmental Consultants PO BOX 2522 Wilmington, N.C. 28402 www.LMGroup.net 1-866.LMG-1078 (910)-452-0060 fax UsOil Boiing 71 t Convenience 'cnter Detailed Soil Profile Descriptions June 16, 201 fr Boring 1 Flat 0-1% Portsmouth Series A — 0-10" Loam, granular, very friable non sticky non plastic, 10YR 2/ 1. Btg t — 10-27" Sandy Clay Loam, weak medium subangular blocky friable slightly sticky slightly plastic, lOYR 3/1. Btg 2— 27-48" Clay Loam, weak coarse subangular blocky, friable moderately sticky moderately plastic. 2.5Y 4/1. SHWT: <12" (-12" Contemporary due to Regional Drainage) Physical Water: 23" Boring 2 Flat 0-1% Portsmouth Series A — 0-4" Loam, granular, very friable non sticky non plastic, 1 OYR 2/1. Btg 1 — 4-19" Sandy Clay Loam, weak medium subangular blocky friable slightly sticky slightly plastic, 1 OYR 3/1. Btg 2 — 19-48" Clay Loam, weak coarse subangular blocky, friable moderately sticky moderately plastic, 2.5Y 4/1. SHWT: <12" (-12" Contemporary due to Regional Drainage) Physical Water: 26" Appendix C Published Description and Chemical and Physical Properties Of the Portsmouth Soil Series LOCATION PORTSMOUTH NC+FL SC VA Established Series Rev. .1H W EWH 09/2008 PORTSMOUTH SERIES MLRA(s): 133A, 153A, 15313. 153C NTLRA Office Responsible: Raleigh, North Carolina Depth Class: Very deep Drainage Class: Veit' poorly drained Permeability: Moderate in the solum and rapid or very rapid in underh inS materials Surface Runoff: Very slow to ponded Parent Material: Loamy matitne sediments Slope:0 to 2 percent Mean Annual Air Temperature (type location): 65 deg-ees P. Mean Annual Precipitation (type location): 50 inches TAXONOMIC CLASS: Franc -loamy over sandy or sand_\ -skeletal, mixed, semiactive, thermic T}pic Umbraquuhs TYPICAL PEDON: Portsmouth fine sandy loam--cultnarcd.(Colors are for moist soil) Ap--O to 12 inches: black (I OYR 2/1) fine sandy loam; weak medium granular structw•e: very fiiable: niany fine roots; moderately acid; gradual wavy boundary. (10 to 20 inches thick) Et' -12 to 19 inches: g-ay (1 OYR 5/1) fine sandy loam; weal: median granular structure; very friable; few tine and medium roots; moderately acid; gradual wavy boundary. (0 to 8 inches thick) BEg--19 to 23 inches: gay (I OYR 511) and dark gray (l OYR 1:'t) fine sandy loam; weak medium subangular blocky structure; friable; slightly sticky, slightly plastic; common tine pores and old root channels: common medium prominent brownish yellow (1 OYR 6/8) and yellow (I OYR 7/8) iron masses; common medium flakes of mica: strongly acid: gadual wavy boundary. (0 to 6 inches thick) Btg--23 to 35 inches; gray (10YR 5/1) and dark ggay (10YR 4111) sandy clay loam with pockets and lenses of sandy clav and sandy loam; weak medium subangular blocks structure: friable; moderately sticky: moderateh plastic: common fine pores and old root channels; common medium pronnent vellowish bronn-u (1 OYR 5/8). brownish yellow (1 OYR 6/8), and vellowish red (5YR 5/8) iron masses; common thin patch), clay films on faces ofpeds; common medium flakes of mica: few medium grains of Edspar minerals; very strongly acid: clear vya�. boundary. (10 to 26 inches thick) BCg--35 to 38 inches: gray (1 OYR 511). brownish yellow (1 OYR 6/8) and reddish yellow 0YR 6/8) sandy loam; weak medium subangilar blocky structure; very friable: common medi un flakes of mica: few meditunl grains of feldspar minerals; very strongly acid: clear smooth boundary. (0 to 5 inches thick) .usda.gov/osd/.../PORTSMOUTH. htm I 2Cgt- 38 to 48 inches; __rav (l OYR 6/1) sand with te%v small hodies of sandy clay loam: singe mauled: loos<: common medium flakes of mica; few median grains ofteldspar minerals: very strongly acid. abrupt smooth boundary. (3 to 15 inches thick) 2Cg2--48 to 72 inches; gray (1 OYR 6/1) and light gray (l OYR 7 i I) coarse sand. single grained: loose: common medi un flakes of mica; few small to large pebbles; strongly arid. TYPE LOCATION: Washington County. North Carolina: Tidehyater Research Station_: 0.7 mile south of 1J.S. 64 Highway on SR 11 19, 75 feet east ofSR 1 119 at Utility pole E160. RANGE IN CHARACTERISTICS: Solum Thickness: 20 to 40 inches Depth to Bedrock: Greater than 60 inches Depth to Seasonal Hign Water Table: 0 to 12. November to May Soil Reaction: A and B horizons range fi•om extremely acid to stron& acid unless the surface has been lured and C horizons range from cmremel), acid to moderatch, acid Other Features: Mica and other weatherable minerals along with pebbles are few to common in abundance in most pedons A or Ap horizons: Color --hue of I OYR or neutral, value of 2 or 3, and chroma of0 to 3. Texture --sandy loam, fine sandy loam loam, or their nutek%° analogues. Eg horizon (if it occurs): Color --hue of I OYR or 5Y, value of 5 to 7, and chroma of l or Tc\tLu-e--sandy loam, fine sandy loam, or loam BEg horizon (if it occurs): Color --hue of I OYR to 5Y, or is neutral, value of 3 to 6. and chroma of 1 or 2 Tcxttue--sandy loam, fine sandy loam, or loam Redoximorplic featw•es--iron masses in shades of brown, yctlow, or red and iron depletions in shades of oLve or grav Btg horizon: Color --hue of 1 OYR to 5Y, or is neutral, value of to 7. and chronha of I or 2 Temiu e--sandy clay loam, loam, or clay_ loam. Some pedons hive strata or pockets and lenses of sandy clay and sandy loam. Redoxinotphic features --ion masses in shades of brown. Yellow. or red and iron depletions in shades of oln or 2'ay BCg horizon (if it occurs): Color-- hue of 1 OYR to 5Y, or is neutral. value of to 7, and chroma of 1 or 2 TextUre--loamy sand or sandy barn (if present this laver is less than 5 inches thick) Redoximorphic features (if they occur) --ion masses in shades of brown. yellow. or red and ion depletions in shades of olive or may 2Cg horizon: .usda.gov/osd/.../PORTSMOUTH. html ? /, l.V1vIrGllty l.= Jr.n1GJ: InCIC a1C LLU UUIeI huv�eu SeuC> u: utC atu„e tautuv GEOGRAPHIC SETTING: Landscape: Coastal Plain Landform: Marine Terrace Elevation: Generalh less than 25 feet above mean sea level Parent Material: Loamy marine sedunents Mean Annual Air Temperature: 58 to 70 degrees 1%4ean Annual Precipitation: 42 to 66 inches Frost Free Period: 200 to 260 days GEOGRAPHICALLY ASSOCIATED SOILS: Altavista soils --moderately well drained soils (seasonal high %i atcr table 18 to 30 inches) on higher landscapes Arapahoe soils --vet)' poorh, drained soils (seasonal high water table 0 to 12 itches) in coarse -loamy family on svnilar landscapes Augusta soils --Somewhat poorh, drained soils (seasonal high water table 12 to 24 inches) in fore -loamy family on slighth, higher landscapes Cane Lookout soils--very poorh, drained soils (seasonal high \cater [able 0 to 12 inches) in fine famih on sintiar landscapes Conaby soils --very poorh, drained soils (seasonal high water table 0 to 12 inches) in coarse -loamy famih \Nrh organic surface lavers 8 to 16 inches thick on similar landscapes Deloss soils --very poorhr drained soils (seasonal high water table 0 to 12 inches) in fine -loamy Eatnih' on similar landscapes Draeston soils --Somewhat poorh, drained soils (seasonal high .eater table 12 to 30 inches) in coarse -loamy famih' on shghth' higher landscapes Hide soils--vep• poorh drained soils (seasonal hiJn water table 0 to 12 inches) in fine -silty famih� on similar landscapes Pettiarrcv soils --very poorhl drained soils (seasonal hilt water table 0 to 12 inches) in fine famih with organic surface lavers 8 to 16 inches thick on similar landscapes Roanoke soils --poorly drained soils (seasonal Inigh water table 6 to 12 inches) in file family on suniar landscape Roper soils --very poorly drained soils (seasonal high water table 0 to 12 inches) in fine-sihy fainilv NA ith organic surface layers 8 to 16 inches thick on similar landscapes State soils --well drained soils (seasonal high water table 48 to 7' inches) in fine -loamy famih, on higher landscapes Tomotlev soils--poorh' drained soils (seasonal high water table 0 to 1 _' inches) in fine -loamy fanih, on similar landscapes Wahee soils --somewhat poorh, drained soils (seasonal hilt water table 12 to 18 inches) in fine famih on higher landscapes Wasda soils --vet) poorh' drained soils (seasonal high water table 0 to 12 inches) in file -loamy famih with organic surface lavers 8 to 16 inches thick on similar landscapes ...usda.gov/osd/ ... /P0RTSM0LJTH.html NCO1-8 19-35 L SCL CL NC1 35-38 LS SL NC0128 38-72 SR COS LS SCT-S Depth -pH- C.M. NC0128 0-19 3.5- 5.5 S.-15 NC0128 0-19 3.5- 5.5 3.-8. NC0128 0-19 3.5- 5.5 3.-15 Nc:0128 1a-35 3.5- 5-5 .5-2. NC0128 35-38 3.5- 5.5 0.-.5 "CC 128 38 i .5- 6.0 0. .5 National Cooperative Soil Suvey U.S.A. 0-0 .....-100 20-35 ;-9 0-0 '00 8-18 1-4 0-0 0:` 2-10 0-3 Pennaab Stink-Swll LOW 0.:- .0 LOW 0. r-.'.. a :LOW 0.5 0 LOW 2.0-6 0 Low 6.0-:'i' LOW ..usda.gov/osd/ ... /PORTSMOUTH. html Lawyer, Mike From: bonoble@nc.rr.com Sent: Friday, October 01, 2010 2:28 PM To: Lawyer, Mike Subject: Oliver Site Attachments: revised10-1-10.pdf Please find attached the application sheets that have been revised to show the correct impervious area. Thanks Sam R. Noble, Jr., P.E. 401 Oxford Road Lumberton, NC, 28358 910-740-9466 IV. PROJECT INFORMATION 1. In the space provided below, briefly summarize how the stormwater runoff will be treated. Stormwa ter will be collected in ditch and retention pond and transmitted into existing drainage ditch on the 2. a.If claiming vested rights, identify the supporting documents provided and the date they were approved: ❑ Approval of a Site Specific Development Plan or PUD Approval Date: ❑ Valid Building Permit Issued Date: ❑ Other: Date: b.Identify the regulation(s) the reject has been designed in accordance with: ❑ Coastal SW -1995 Ph 11- Post Construction 3. Stormwater runoff from this project drains to the Lumber River basin. 4. Total Property Area:3.43 acres 5. Total Coastal Wetlands Area: 0 acres 6. Total Surface Water Area: Q. acres 7.. Total Property Area (4) - Total Coastal Wetlands Area (5) - Total Surface Water Area (6) = Total Project Area':3.43 acres Total project area shalt be calculated to exclude the following: the normal pool of impounded structures, the area between the banks of streams and rivers, the area below the Normal High Water (NHW) line or Mean High Water (MHW) line, and coastal wetlands landward fjrrom the NHW (or MHW) line. The resultant project area is used to calculate overall percent built upon area (BtrA). Non -coasts! wetlands landward of the NHW (or NIflW) line may be included in the total project area. 8. Project percent of impervious area: (Total Impervious Area / Total Project Area) X 100 9. I -low many drainage areas does the project have?l (For high density, count 1 for each proposed engineered stormwater BMI'. For low density and other projects, use 1 for the whole property area) 10. Complete the following information for each drainage area identified in Project Information item 9. if there are more than four drainage areas in the project, attach an additional sheet with the information for each area provided in the same format as below. - . _ — lrA'�t] f�A7�_=� 7?_C _ e.�e� y � ram_a _ c:Irria= �=. Receiving Stream Name Lumber River Stream Class WS-IV,B, SW,HWQ Stream Index Number " Total Drainage Area (so 149,400 On -site Drainage Area (so 149,400 Off -site Drainage Area (so 0 Proposed Impervious Area" (so 59,710 % Impervious Area" (total) 40 Sm" rvrous':'Sar acc_Area e„ Vrains e Area 1]19 +a e Area== Drain r Are — oca na"`_Area ; On -site Buildings/ Lots (so 1920 On -site Streets (sf) 0 On -site Parking (so 56770 On -site Sidewalks (so 1020 Other on -site (so 0 Future (so 0 Off -site (so 0 Existing BUA""" (so 0 Total (so: 59,710 " Stream Class and Index Number can be determined at: It :: portal.ncdenr.o)-g/webl7tos/csulclassifcations Form SWU-101 Version 14May2010 Page 3 of 3 Permit No. (m be prw.CBd by PWO) .� {'L�. �OaOF W ATFgOG w NCDENR STORMWATER MANAGEMENT PERMIT APPLICATION FORM 401 CERTIFICATION APPLICATION FORM WET DETENTION BASIN SUPPLEMENT TM hrm must be RHed out, printed and submilled. The RequlmdRoms Ctwkflsf (Pad 110 must be printed, ROeo' out end submItted along wHh aff of the requiredfnformallon. Pni lname . aonny w,., peaty Contact person . Chdatophor 011m, President Phone number 4f0-73&1401 Dale 8=010 Drainage area number 1 - r II U�SIGN.INP�16h� �-.n„---b -.�_ sr-��z��s��.��.-,+�� $ie Chareclede4ce Manage am 140,4001? ImpaMous area, posldevefopmenl - 59,70 le %hmperfts 09.97 % De*n rainfall depth .1.0 In Storage Volume: Non•SAWatem lAnkrwm volume required 4;969 fly Insufficient required volume. Volumes provided '-71810 ft .. OK, volume provided is equal to or in excess of volume required Storage Volume: SA Walens 1.5•rundvaiume to Pradir elopment 1yr, 24-hr r ua8 _ ' If Posbdevetopined 1-yr, 24hrrunoff If Minimum volume required —_—It' CAROl/y . Volume prev[ded fl o'VAO\W�' QFr:SS)p,F'°; 9 Peak Flow Calculation Is Use pmJpoet control of the 1yr24"lam peak flow requked? N (Y or N) 1-yr, 244rrade0 depth In ✓ '� 9 Re0unalC, pne-development .(unWess) UOgJ0 P •;�NCrI 'jJec ':jr'ti;:. Rational G pod -development (unftloss) ....... " Retdet inlyaW.. 1-yr, 24-hrslonn Iahr R, NWA Pr04PRIopment 1-yr, 244r peak Raw 0.15 elseo Postdevelepmanl l-yr, 24-hr peak flow 0.29 elsec PrelPost 1-yr, 244u peat 4orcontrol 0.14 elSoo Etovalions Temporary pool elevation 97.00 tonal Pennanord pool elevation 6.50 fmsl SHWT devallon (app►ox. at 0a poem. pod aluatlon) 86.50 trust Top of 101 vegetated shelf elevation 87.00 fmsl Bottom of 1011vegetaled shelfelevailon 85.00 fmsl Pala rat needed far calculation option pl, but OK if provIded. Sedimentdeanaut, lop deiation(botam of pond) 81.00 frna Sedhlenl desrloul, bottom elevation 80.00 fnal Data not needed for calculation option kl, but CK Y proAded. Sediment Garage pmVded 1.00 fl IS Theraaddillonal vohuae stored above the stale -required tamp. pool? N (Y&N) Elevation of the top of the additional volume trust From SNMDI-Wet Ddembe ae.Mtea "17me Pvte L a EL Design Summary, Page 1 of 2 WET DETENTION BASIN SONNY OLIVER REALTY CALCULATIONS 1 Find Surface Area of Permanent Pond Total Area = 3.43 AC Impervious Area = C 1.37 AC , % Impervious = 40 % C��.✓�F ES Permanent Poll Depth = 3 feet SAIDA = 1.73 SA = (1.73/100) X 3.43 AC / = 0.0593 AC Ji9`',,F"&I = 2585 SF 4j SA Provided = 13380 SF y�N 2 Find the Volume to be Controlled from 1" Storm Rv = 0.05 + 0.009 (1) 0.05 +,009(39) 0.4 in/in Volume = (Design Rainfall) (Rv) (Drainage Area) = 1 inch x 0.40 Inlin x 1/12 (feet/inch) x 3.43 AC = 0.114 AC ft = 4980 CF Volume Provided 7310 CF 3 Determine Peak Runoff A = 3.43 AC C = 0.55 To = 5 min. I = 8.94 inches/hour Q= 16.9 CFS 4 Size Outlet D = 0/9.42' HA1.5 Q= 16.9 CFS H = 0.5 feet D = 5.07 feet Use 60" riser 5 Size Drawdown Orifice Volume = 7310 CF Use 1 -1.25" Dia Hole Q = 0.026• D A 2 • (hAt12) H = 0.5 feet Q = 0.03 CFS Drawdown Time = 67.6 Hours --SEP`?.8-2007(FRI) ll:Od JOHNNY W NOBLES & ASSOCIATES (FRH)19107388652 P.001 11u11NN,' R'. N01iLES s Aj$OC L1'1'ES R u]"Nl ILE I'R 45M ITT q L DI ILL'1' f.�': Ilr"Iwen if•i.l. nl!• •,. ir.4:LS,I.ICLI�lalllr'. .:t'•r �.w 1111' �� t'JI:R RR �I:Yvvr;L N4:Pflil:l, �� ❑r-,SNT 11F01. nvI vn❑PUE coma W+ ❑PLFn:e RI:%' ❑PLP.np} nr.:vlP. I: DENR-FRO SEP Z 8 2007 DWO r„ q.-11111NI11 IT. L,In :I,if,N. N, a„e Y CIA -RECAST T-ASH INS'ALL I- I- 01c. N]LF T' Oli. Fri( --AST 7RAZSH PACK ECG RQ ECNC 31S7.. PERMANENT POOL (3.0' AVG. D_FTH) El MW O.? rJ L'N. - 02 I•iS-T4 I6'FCF Tf SCOW]R FIJFN OF 'A'ASHCO STOIIE *U A HEI'iHT GF 2' CFR THE FOV? CPGV. 'AR-F PENO OePal 6UM YlTI vfkEN FlLTM FAEBG A43 CPEN 10 EEn'A 7R EA5114. 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