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Home My WebLink AboutSW6200704_Report (Soils)_20201125A .f ONVEN & ASSOCIATES, INC. SOIL ' ENVIRONMENTAL SCIENTISTS P.O. Box 400, 266 Old Coats Road Lillington, NC 27546-0400 Phone (910) 893-8743 / Fax (910) 893-3594 wwwJialowensoil.com 10 April 2020 Mr. Trae Anderson Larry King & Associates 1333 Morganton Road, Ste 201 Reference: Soil Scientist Investigation for Stormwater Cypress Pointe Dear Mr. Anderson. A site investigation has been conducted for the above referenced project, located off Fennel Road in ('aamberland County, North Carolina. The purpose of this investigation was to provide a general characterization of the soils in the area proposed for a stormwater infiltration device, including a determination of the depth to evidence of a seasonal high water table and estimation of the permeability of the various soil layers. In -situ hydraulic conductivity testing was not conducted. All soil characteristics were described in accordance with the USDA Field Book for Describing and Sampling Soils. This report represents my professional opinion as a Licensed Soil Scientist. Hand -powered auger borings were advanced at five: locations as shown at Figure 1. A soil profile description was collected at each location and is attached to this report. At location #1, soil morphological characteristics indicating a seasonal high water table (SHWT) were observed at 1.12 inches below surface. Infiltration rates (permeability) range from 0.8 in/hr in the sandy clay loam textured layer between 62 and 84 inches to as high as 10 in/hr in the loamy sand textured soils observed between the surface and 18 inches below surface. At location #2. soil niaarphological characteristics indicating a seasonal high water table (SHWT) were observed at 110 inches below surface. Infiltration rates (permeability) range from 0.8 in/hr in the sandy clay loan textured layer between 62 and 84 inches to as high as 10 in/hr in the loamy sand textured soils observed between the surface and 18 inches below surface. Soil Science Investigations 0 Wetland Delineations, Permitting, and Consulting HAL OWEN & ASSOCIATES, INC. At location #3, soil morphological characteristics indicating a seasonal high water table (SH\VT,) were observed at 92 inches below surface. Infiltration rates (permeability) range from 0.5 in/hr in the sandy clay loam textured layer between 14 and 68 inches to as high as 8 in'hr in the loamy sand textured soils observed between the surface and 9 inches below surface. At location #4, soil morphological characteristics indicating a seasonal high water table (SHWT) were observed at 86 inches below surface. Infiltration rates (permeability) range from 0.6 in/hr in the sandy clay loam textured layer between 14 and 68 inches to as high as 9 in/hr in the loamy sand textured soils observed between the surface and 9 inches below surface. At location 95, soil morphological characteristics indicating a seasonal high water table (SHWT) were observed at 90 inches below surface. Infiltration rates (permeability) range from 0.5 in/hr in the sandy clay loam textured layer between 14 and 68 inches to as high as 8 in/hr in the loamy sand textured soils observed between the surface and 9 inches below surface. I aj,')preciate the opportunity to provide this service and trust that you will feel free to call on me again in the future. If you have any questions or need additional information, please contact me at your convenience. SOIL f Sincerely Hal Owen Licensed Soil Scientist Soil Science Investigations • Wetland Delineations, Permitting, and Consulting IIAI. OWEN & ASSOCIATES. INC. Soil Scientist Investigation for Stormwater Cypress Pointe 10 Al-ri 12020 Figs; ure I p,, Y Ann o,imm � [ r uawr u�wwmn r� ,ufl�s� � �� r im w��mmuo� -w, Yid mnw� p Yw . M �GMX ,F,R t " ,�� A � wu mwwwww,aw�mww�mmuwwwwuw!uua�,aampuwm�uuiwuiwnwaw�ea�.!�r�n «mmu�:rou�o w��f ,, �� n'w,wv�wrm��,w�s mvm�ru mn!o:��wmaruvaw,uuws�utt;� ui�wm ��wr�mm�uw wmuw%e�i�maww�muaww'ni�iiwWo�w�wrviu�mvaw,u�umo } � a II �1 III �;0 1 I Fri ✓��i�''iN�� N' �� '-^�.� SoitProfile#] r Soii Profile #2 w J +oIf / t fhf Soil Profile X J I l g,� 2 s --7� . r 1 Soil prof w 4 ; 4� ; f . Soil Science Im, 4�stigations * Wetland Delineations, Permitting, and Consulting HAL () "FN & ASSO)C'IATES, INC. SOIL 'R+1Id+'ILE ESC IP'TIO 5 FOR S'I' : RNINN A'1'taA MANAGEMENT DEVICES PROJECT NAME: Cypress Pointe PROPOSED FACILITY: BMP LOCATION OF SITE: _Off Fennell Road COUNTY: Cumberland EVAL EVALUATIONal m® eerBorWt�t�tl,Scientist DATE EVALUATED:.' �IiI'limit( g p t❑ PROFILE: ( (Elevation 128.57) k-ORIZON DEI TH MATRIX I MOTTLES TEXTURE STRm ('111RF. CONSISTENCE PERMEABIL NOTES _.. ITY ([N/IIR) A 0-4 10YR 5/3 LS 1 M GR VFR 10 E 4-18 1 OYR 7/6 LS I M GR VFR 10 Btl 18-40 1 OYR 5/6 SL 2 M SBK FR 6 BE— 40-62 ......... ........ _ ,... IOYK b/6 lOYK 7P6 c2 Sl, 1 M S11i,: FR 4 _.._ TO 74 l OYR 6/6 1 OYR 8/2 fl SCL 2 M SBK FI 0.8 SYR 5/6 fl BC 74-84 Variegated sL 1 M SBK FR 0.8 C 84-144 .... Variegated _ LS SG ___..... VFR ...... .., _._..... .. _....,... ...m . _. _...._-. .......... _..._.-. _ _ _..........., _ AWT 1 9°" SiIWT 112" SLWT SLOPE 5-10°ro DRAINAGE SOIL SERIES VEGETATION Mixed pines ma d hardwoods COMMENTS: .._. Soil Science Investigations • Wetland Delineations. Permitting, and Consulting PROFILE: 2 (Elevation 127.66) HORIZON DEPTH MATRIX T _.. (IN) _._.. A 0-d 1 OYR 5�3 �.Btl 1 18 I OYR 7 8-40 _ 10YR -5/6 _... Bt2 4. :... ._�...L. 0 62 1l0YR 6/6 Bt362-74 BC" 74-84 Variegated C 84-144 Variegated AWT d 114" HAL OWE,N ASSOCIATES, INC. MOTTLES TEXTURE STRUCTURE CONSISTENCE PERMEABIL NOTES 1TY (IN/iiR LS I M GR VFR 10 } LS 1 M GR VFR 10 SL 2 M SBK FR 6 0YR 716 c2 SL 1 M SBK FR 4 iWI 8" t 0 SC►, 2 M SBK F1 0.8 5YR 5/6 n SL 1 M SBK FR 0.8 I'S SG VFR SHWT 110" SLOPE 5-10% DRAINAGE AT VEGETION Miffed pines and hardwoods COMMENTS: SLWT SOIL SERIES Sod Science Investigations • Wetland Delineations, Permitting, and Consulting HAL OWEN & ASSOCIATES, INC. PROFILE: 5 (Elevation 124.04) HORIZON DEPTH MATRIX MOTTLES TEXTURE STRUCTURE CONSISTENCE PERMEABIE . .... NOTES (IN) ITY (INIHR) A 1 0-9 1 WR 3/1 SL 2MGR FR Btl 14 --FOYR 6/3 SL 2 M SBK F1 7 4-28 1 0YR 6/3 1 OYR 7/2 fl SCL -2 M SBK FI .5 I OYR 6/6 fl Bt3 28-6i 1OYR 7 R fi 1 OYR 6/6 c2 SCL 2 NI SBK FI 0.5 5YR 5/8 cl BC 68-84 . ........ Variegated . . ........... . SL I M SBK FR . .... . ... . 0.6 c 84-144 Variegated. Variegated . . . . . . . ....... LS .... ........ . SG . ........ VFR . . .............. . .. . . ....... AWT , �HW f . . ..... . . . ..... SLWT - . .......... SLOPE 5-10% DRAINA6E SOIL SERIES V F(d. I Al 10 7iT\—,,j pines and hardwoods . ..... .. ....... . . . .... ------- -COMMENTS: Soil Science Investigations * Wetland Delineations, Permitting, and Consulting HAL OWEN & ASSOCIATES, INC. LEGENI) OF ABI�WEVIAT10, S FOR SOLI. PROFILE DESCRIPTIONS 101S 1" CCONSISTENCE S - Sand L - Loose LS - Loamy Sand VFR - Very Friable SL - Sand\ Loam FR - Friable L - Loam Fl - Firm SCL - Sandy Clay Loam VFI - Very Firm CL - Clay Loam EFI - Extremely Firm SiL - Silt Loam Si - Silt SiCL - Silt Clay Loam SC Sandy Clay AWT Apparent Water Table C - Clay SHWT - Seasonal High Water Table SiC -Silty Clay SLWT -- Seasonal Low Water Table O - Organic NI OTT 1 F'S f few 1 - fine F - Faint c — common 2 - medium D - I)istinct m..... xa:ut' 3 - coarse P - Prominent STRUCTURE 0 - structu.reless VF - very fine G - Single Grain 1 - weak F - fine M - Massive 2 - moderate M - inedium CR - Crumb 3 - strong C - coarse GR - Granular VC - very coarse SBK - Subangular Blocky ABK - Angular Blocky PL - Platy PR - Prismatic Soil Science Investigations + Wetland Delineations. Permitting, and Consulting