DR8801-LR 881108TRINITY ENI~INEERINI~ TESTIN~ OORPORATION
November 8, 1988
Southland Industries, Inc.
1025 Quaker Street
Dallas, Texas 75207
Attention: Mr. Ron Jessen
Reference:
Subsurface Investigation
Bethel Road
Coppell, Texas
TETCO Report Number: D88-1683
Gentlemen:
In accordance with your request, a subsurface investigation has been com-
pleted at the referenced site. Logs of the four sample borings are
attached to this letter.
We appreciate the opportunity to have performed this service for you.
If we may be of further assistance, please call.
Respectfully submitted,
TRINITY ENGINEERING TESTING CORPORATION
Michael K. Stacey ~ -
MKS/pm
Enclosures
' ~-~Trinit. y
o Engineermg Testing
--' Corporation EXPLANATION OF SYMBOLS AND TERMS
USED ON LOGS OF BORINGS
~ ~ ~ _¢ u,. MATERIAL DESCRIPTION
_ · ....... und~sturbedpushtubesample _
-- 3.5.. pocket penetrometer test
_ ~ ........ disturbed sample --
5 ~ X 15... split spoon sample and stanaard ~Twater surface
_ -~ penetration blow count --
-- ~ ........ wash boring, no sample recovem.' --
10 ~. Texas conepenetrotion ........ TCP Test
~ [ 100 Blows=Y'
-- ..... .. . NX-size core sample --
TYPICAL SOIL AND ROCK SYMBOLS
Well-Graded Gravel (GW) ~ Silty Sand (SM)
~ Poorly-GradedGravel(GP) ~ Clayey Sand (SC)
~ Silty Gravel (GM) ~T~ Silt(ML)
~ Clayey Gravel (GG) ~ Lean Clay (CL)
~ Well-Graded Sand (SW) m Elastic Silt (M.)
Poorly-Graded Sand (SP) ~ Fat Clay (CH)
Shale
Sandy Shale
Weathered Shale
Sandstone
Conglomerate
Caliche
Limestone
Shaley Lin~estone
Weathered Limestone
Dolomite
Fill Material
Asphaltic Concrete
DEGREE OF WEATHERING
Unweathered .. Rock in its natural state without
visible sign of decomposition or
discoloration
Slightly
Weathered .... Slight discoloration without visible
sign of decomposition
Weathered .... Complete discoloration with zones of
slightly decomposed rock
Severely
Weathered .... Complete discoloration and decom-
position, approaching soil texture
and appearance
SOIL STRUCTLrRE
Calcareous .... Containing calcium carbonate
Slickensided ... The presence of planes of weakness
having a slick and glossy appearance
Fissured ...... Breaks along definite planes of fracture
with little resistance to fracturing
Laminated .... Alternating thin layers or lenses of
vatting material or color
Interbedded ... Alternating layers of varying material
The Log of Boring is a representation of the subsurface materials at the specific bering location and within the depth
explored. The transition between strata may be gradual and variations in material types and depths between berings
can be expected. Water level obser~.ations represent those conditions at the time of exploration and may vary with time
and location on the site.
LOG OF BORING
APPROXIMATE STATION NO. 0+75
"'"' "' °
3: t- ~ ~ MATERIAL DESCRIPTION
nuJ 3; t.-
uJ~u,. ~. ~: nnn" n
· ~ -
__ 8" CONCRETE Over 4" BASE MATERIAL
_ ~ CLAY: Hard, Dark Gray, with Gravel
-- 4.5
2 _
-- 4.5
4 --
_ ~ 4.5 CLAY: Hard, Dark Gray becoming Brown --
6 4.5 --
4.5
8 -
-- ~ SANDY CLAY: Hard, Tan, with Calcareous
-- 4.5 Deposits
}0 --
-- TOTAL DEPTH OF BORING = 10.0 FEET --
-- NOTE: The boring was advanced to a depth of --
-- 10 feet below the ground surface and ground-
12
Project~ BETHEL ROAD
Location: COPPELL, TEXAS Dl~te:ll/4/88 Ty~~. UNDISTURBED BoringNo: B-I
--~.-..Trinit. y
Engineering Testing
Corporation
LOG OF BORING
APPROXIMATE STATION NO. 7+00
~ ~ ! MATERIALDESCRIPTION
__ 2.5 C~Y: Stiff to Hard, Gray
2
_ 4.5
4 4.5
-- 4.5
6
-- 4.5
8 4.5 C~Y: Hard, Tan
4.5
10
__ TOT~ DEPTH OF BORING = 10.5 FEET
NOTE: The boring was advanced to a depth
12 of 10.5 feet below the ground and ground-
Projec~ BETHEL ROAD
L~cation: COPPELL, TEXAS Da~: 11/4/88 ~: UNDISTURBED Bor~gNo: B-2
--!
· ~-~Trinity
Engineering Testing
Corporation
LOG OF BORING
APPROXIMATE STATION NO. 13+00
Projec~ BETHEL ROAD
Location: COPPELL, TEXAS Date: 11/4/88 T~: U~DISTURBE~ BoringNo: B-3
m ~- MATERIAL DESCRIPTION
Z 2.0 ¢I~'¥: Stiff, Black, Organ'lc
2 4.5 CLAY: ltard, Dark Gray
-- ~ CLAY: l-tard, Gray
8 4.5
-- 4.5
10
-- TOTAL DEPTH OF BORING = 10.5 FEET
12 NOTE: The boring was advanced to a depth of
-- 10.5 feet below the ground and groundwater
-- was not encountered above that depth.
__/
· --~L.Trinity
Engineering Testing
Corporation
LOG OF BOHING
APPROXIMATE STATION NO. 18+50
~ ~ >>-.<'~ m=~ m MATERIAL DESCRIPTION osO _~ BoO
-- ~ SANDY CLAY: Hard, Tan -- _
-- 4.5 (FILL)
-
2 ~ 4.5 ;LAY: Stiff to Hard, Gray -
4 3.5
Z 4.0
8 ~r, 4.5 -
10 4.5
-- TOTAL DEPTH OF BORING = 10.5 FEET
12 NOTE: The boring was advanced to a depth _
-- of 10.5 feet below the ground surface and _
-- groundwater was not encountered above that _
depth. _
Projt~ct: BETHEL ROAD
Location: COPPELL, TEXAS Da~e: 1~/4/$8 Typ~: U~OISTURBE~ Bo~ng No: