SW4191202_SHWT Report_1/2/2020

E C S SOUTHEAST, L L P "Setting the Standarci,for Service"
Geotechnical • Construction Materials e Environmental - FacilitiesF
NC egistredGeotogistsrm
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SG RegistAred EnginLwtrig Firm 3247
December 1.6, 2019
Allan Hill,. PE
Triad Design Group
4807-C Koger Boulevard
Greensboro, North Carolina 27407
Reference: Report. of Seasonal High Water Table Study
Metcor Metal Fabrication Site Improvements
835 Salem Road
Lexington, North Carolina
EGS Project 09-29022
❑ear Mr. Hill:
ECS Southeast; LLP (ECS) is pleased to provide you with. our Report of Seasonal High
Water Table (SHUNT) Study for the Metcor Metal Fabrication Site Improvements
proposed Stormwater Control Measure (SCM).
Project In
The site is Located at 835 Salem Road, Lexington,. North Carolina. The proposed SCM
were located on a site map provided by Triad Design Group (Figure 1)_ Two borings
were extended to. a depth of eleven feet below ground surface (bgs).with a hand auger..
Scope of Services
ECS conducted a study of the soils. to identify the depth of the seasonal high water table, if
present. The properties and characteristics of the soils retrieved from the borings were
observed and. recorded in field notes. The properties include texture; depth, the presence of
restrictive.horizons, depth to seasonal high water table, coarse fragments, etc. The
assessment was conducted in general accordance with current. sail science.. practices and
technology and the North Carolina Division of Energy, Mineral, and Land Resources
Stormwater Design Manual.
Seasonal High Water Table Study
Below is a summary of the soils retrieved from. the borings.
SHWT-1 _ The surface layer to a depth of 6 inches bgs consists of brown sandy loam. The
structure appears to be granular with friable consistence. The. subsurface layerfrom 6 to 42
inches bgs consists of yellowish red clay. The structure appears to be moderate medium.
t;bangt. ar hlocky w-11h firm, 4q., rtly stie=k' , slightly plastic consi, �tenoe The subsurface
layer from 42 to 58 niches bgs consists of reddish yellow sandy loam. The structure
appears to be massive with friable consistence. The subsurface layer from 58 to 132 inches
4811 Knger Blvd,, Greensbam, NC 2.7407 • T., 336-.856-7150 F; 336�856-7160 - mvme.cslimited corn
EC S. .ap(tol Services, PLIX, EC � f lofida, LLG • ECS.Mid-Atiantic, LLC . ECS Nlidlr7plst, LLC • ECS..Southeast. LLP • E:CS.7exas, LLP

SHINT Study..
Metcor Medal Fabrication
Lexington, North Carolina
ECS Project 09-29022
December 16, 2099
bgs consists of pale brown sandy loam. The structure appears to be massive with friable
consistence.
SHWT-2 — The surface layer to a depth of 15 inches bgs consists of brown sandy loam,
The structure appears to be granular with. friable consistence, The subsurface layer from 15
to 42 inches bgs consists of reddish yellow clay. The structure appears to be weak fine
subangular blocky with friable, slightly sticky, slightly plastic consistence. The subsurface.
layer from 42 to 72 inches bgs consists of reddish yellow sandy .clay loam with pale brown
streaks. The structure appears to be massive with frable consistence. The subsurface
layer from 72 to 13.2 inches bgs consists of multi -colored sandy loam. The structure
appears to be massive with friable consistence. Lateral water flow was observed. at 72
inches bgs.
SHVVT Study Findings
SHWT-1- The SHWT appears to be greater than 132 inches feet) bgs.
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SHWT-2 — The SHIM appears to be greater than 132 inches (11.8 feet bgs. Lateral water
flow was observed at 72 inches bgs. (6L �4D
The type of stormwater management facility designed. is. based on the depth of the SHVVT.
andlor confining. layer. The information above can be utilized to determine the. type. of
stormwater .management facility best suited for this site according to the North Carolina
Division of Energy,. Mineral, and Land. Resources Stormwater Design Manual.
Closing
ECS is pleased to offer our professional services and look: forward to assisting in any of
your site analysis needs in the future. If you have any questions or require further
assistance, please contact me at 336-362-4905.
Respectfully,
ECS SOUTHEAST, LLP
I
Joseph A. Hinton, LSS
Senior Soil Scientist
0FN01TrArw_ •''P .
Affncihn'ient Fiot.Ji4: 'I IIHVE!T Boeings location M-ap
Brian. Maas, REM
Vice -President

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LEGEND
SHWT-1 SHWT BORING LOCATION
SHWT-2: SHWT. BORING LOCATION
SL?Ui-2C:�:
SITE MAP PROVIDED
BY
TRIAD DESIGN GROUP
NOT TO SCALE
p(
.Apr
F-1GURE I
SHWT BORING LOCATION MAP
METCOR METAL FABRICATION
SALEM ROAD
LEXINGTON, NORTH CAROLINA
1 ECS PROJECT NO. 09-29022