DR8801-LR 881108 (2)TRINITY ENGINEERING TESTING CORPORATION
November 8, 1988
Southland Industries,
1025 Quaker Street
Dallas, Texas 75207
Attention: Mr. Ron Jessen
Subsurface Investigation
Bethel Road
Coppell, Texa~
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. St y ~ -
M_KS/pm
Enclosures
EXPLANATION OF SYMBOLS AND TERMS
USED ON LOGS OF BORINGS
~ ~ ~ ~ ~ ~ MATERIAL DESCRIPTION
........ undisturbed push tube ~amptc
I
T 3.5.. ~e~et penetrometer test
- ~ ........ d~sturbed samph'
5~~ 15... sphtspoonsampleandstandard ~water surface
-- ~ ~netration blou count
~ uash boring, no sample recover3
10 ~' Texas cone ~netratton ........ TCP Test
~ ~ 100 Blows= 3"
~ I
......... NX-s~e core sample
15 ~ ~
TYPICAL SOIL AND ROCK SYMBOLS
~ Well-GradedGravel(GW) ~ $ilty Sand ($M) ~ Shale
~ Poorly. Graded Gravel ,~P) ~ Clayey Sand (SC) ~ SandyShale
~ Poorly.GradedSand(SP, ~ Fat Clay ,CH, ~ Caliche
Limestone
Shaley Limestone
Weathered Limestone
Dolomite
Fill Material
Asphaltic Concrete
DEGREE OF WEATHERING
Unweathered .~ Rock in its natural state without
vtsible sign of decomposition or
discoloration
Slightly
Weathered ....
Weathered ....
Severely
Weathered ....
Slight discoloration without visible
sign of decomposition
Complete discoloration with zones of
slightly decomposed rock
Complete discoloration and decom-
position, approaching soil texture
and appearance
SOIL STRUCTURE
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
varying material or color
Interbedded ... Alternating layers of varying material
The Log of Boring is a representation of the subsurface materials at the specific boring location and within the depth
explored The transition between strata may be gradual and variations in material types and depths between borings
can be expected Water level observations 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
Proj~ BETHEL ROAD
Location: COPPELL, TEXAS Date:Il/4/88 Typ~: UN'DISTURBED BoringSo: B-1
~ ~ MATERIAL DESCRIPTION o~CC ._1 O~ ~ ~ u')
_ CLAY: Hard, Dark Gray, ~ith Gravel
4.5
2 _
-- 4.5 --
4 _
_ 4.5 CLAY: Hard, Dark Gray becoming Brown --
6 4.5 --
4.5
8 -
_----~ I I 4'5 SANDY CLAY: Hard' Tan' with Calcare°USDeposits_
-- 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 water was not encountered above that depth. --
LOG OF BORING
APPROXIMATE STATION NO. 74-00
Projec~ B£TNEL ROAD
Location: COPPELL TEXAS Date: 11/4/88 ~ype; UNDISTURBED Boring No: B-2
~ O ~ MATERIALDESCRIPTION O~ ~ ·
__ 2.5 C~y: Stiff to Nard, Gray _
2 _
_ 4.5 _
-- 4,5
4 _
-- 4.5 --
6 --
_ 4.5 _
8 4.5 C~Y: ~rd, 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- --
_ water was not encountered above that depth. --
LOG OF BORING
A~PROXn~ATE STA~ON NO. ~+00
Projec~ BETHEL ROA~
Loca~on: COPPELL, TEXAS Da~:ll/4/88 Typ~: UNDISTURBED Boring No: B-3
,,a.,,,, ~ ~2 O~ u. MATERIAL DESCRIPTION O
2 CLAY: Hard, Dark Gray
4
5
-- 4.5
4 _
6 _
_ 4.5 _
-- ~ CLAY: Hard, 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.
LOG OF BORING
APPROXIMATE STATION NO. 18+50
Projec~ BETHEL ROAD
Location: COPPELL, TEXAS Date: 11/4/88 ~!~*' UNDISTURBED Boring No: B-4
u. MATERIAL DESCRIPTION n" _~ > ,,,
O-- 0
- -
4.5 SANDY CLAY: Hard, Tan _
-- (FILL) _
2 4.5 CLAY: Stiff to Hard, Gray _
- ~ -
4, 3.5
-- ~ 4.0 -
- 4.0 _
- ~ -
_ 8! 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. _