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GE01ECHNICAL AND HYDROGEOI.OGIC INVESTIGATION

Proposed Landfill Site for Dickson County

Dickson County, Tennessee

Prepared By:

FEB 2 1995

TENNESSE~ "'"" - • ---•• f OF EtMION~NT

AI«) CONSERVATY.lN ~ _,.y., "'l:L,.., ("\ ~- ·--

Dickson County Sanitary Landfill 100 Virgil Bellar Drive · Dickson, Tennessee 37055

ATEC Associates, Inc. 624 Grassmere Park Road Suite 1 Nashville, Tennessee 37211

May 13, 1992

ATEe Associates, Inc. • V~ 624 Grassmere Park Road, Suite 1

'-.T~ Nashville, Tennessee 37211·3662 [615) 331-5016, FAX* [615J 331-5032

•

May 13, 1992

Mr. Virgil Bellar Dickson County Sanitary landfill 100 Virgil Bellar Drive Dickson, Tennessee 37055

RE: Geotechnical and Hydrogeologic Investigation Proposed Landfill Site Dickson County, Tennessee ATEC File Number: 24-03-92-00010

Dear Mr. Bellar:

In compliance with . your recent requ. ;t, we have completed a geotechnical and 'hydrogeologic investigation for the above r ... ferenced project. It is our pleasure to transmit herewith two (2) copies of our written report of the results of this investigation.

This report contains the results of our findings and an engineering interpretation of these findings with respect to the available project characteristics. We will store the samples for 60 days after which time they will be discarded unless you request otherwise.

If you should have any questions concerning this or any other matter, please feel free to contact us at your convenience. It has been a pleasure working with you on this project.

Respectfully Submitted,

ATEC ASS~TES, INC.

;(~~ L·~~U $lephenson. R.G. Project Geologist

I "-'' J lf\ ..ll.t"'"" ~t;\u__.J J tf-c.~C£..(...0 Timothy G. LaGrow, P.E. ~p Tennessee District Manager

LGS/TGL/da Enclosure

• cc: Mr. Bob Gardner (2)

A Subsidiary of American Testing and !ngineering Corporation Offic&s in MSJOr u.s. Cities/Since 1958

Consu/Ung Environmental, Geotecflnical and Materiels Engineers

• TABLE OF CONTENTS

SECTION PAGE

1.0 EXECUTIVE SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3.0 SITE AND PROJECf CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . 4

4.0 GENERAL SUBSURFACE CONDillONS .................... .". . . . 5 4.1 Soil Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.2 Groundwater Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

• 5.0 HYDROGEOLOGIC ASSESSMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

6.0 SUMMARY AND CONCLUSIONS . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . 12

7.0 UMITATIONS OF STUDY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

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GEOTECHNICAL AND HYDROGEOLOGIC INVESTIGATION

PROPOSED lANDFllL SITE FOR

DICKSON COUNTY, TENNESSEE

ATEC FTI.E NUMBER 24.3-92-00010

1.0 EXECUTIVE SUMMARY

An exploration and evaluation of the subsurface conditions have been conducted at

the site of a proposed landfill for Dickson County, Tennessee. The purpose of the

investigation was to determine the depth and types of subsoils present throughout the

site, to evaluate the suitability of these soils for use as landfill liner and buffer

materials, and to provide the required Hydrogeologic Report outlined in the

Tennessee Department of Health and Environment (TDHE), Division of Solid Waste

Regulations Chapter 1200-1-7-.04(9)(a) .

Six ( 6) exploratory borings have been performed throughout a 35 acre site shown on

the enclosed Boring Location Plan. The results of these borings have ide-ntified one

{1) distinct soil stratum consisting of red, moderate to highly plastic silty clay with

varying amounts of chert This stratum extends to the parent bedrock at depths of

64 feet or greater. The results of our investigation indicate that this stra~ is

suitable for use as the landfill buffer zone. Laboratory testing indicates that the

permeability of the stratum is typically 1.0x10"6 centimeters per second (cm/s) or

lower.

Hydrogeologic information avaHable for this area indicates that the uppermost

aquifer occurs within the Warsaw limestone, approximately 20 to 50 feet below the

bedrock surface at this site. The three (3) existing wells at the landfill are suitable

to monitor the water moving through the overburden and recharging the underlying

aquifer within the bedrock. Additional monitoring points should include the small

tributary to Worley Furnace Branch immediately west of the site, and either the two

existing private wells south of the landfill or Baker Branch.

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2.0INIRODUCTION

This report presents the results of a geotechnical investigation and hydrogeologic

evaluation of the proposed sanitary land~ site in Dickson County, Tennessee. This

study was performed for the client, Dickson County Sanitary Landfill, in accordance

with our signed proposal dated October 22, 1991.

The scope of this investigation included a review of available geologic data for the

project area, an engineering reconnaissance of the project location, a subsurface

investigation consisting of six (6) soil test borings located as shown on the attached

Boring Location Plan, field and laboratory soil testing, and an engineering analysis

and evaluation of the subsurface materials encountered.

The purpose of the investigation was to determine the types of subsoils present

throughout the site, to evaluate the suitability of these soils for use as landfill liner

and buffer materials, and to provide the .required Hydrogeologic Report outlined in

the Tennessee Department of Health and Environment (TDHE), Division of Solid

Waste Regulations Chapter 1200-1-7-.04(9)(a) .

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3.0 SITE AND PROJECT CHARACTERISTICS

The proposed landfill site is located on a 40 acre tract of land on the north side of

Eno Road, just east of Adcock Road, in Dickson County. The site is approximately

1.5 miles east of Dickson, Tennessee and 4.5 miles north of Interstate 40. Figure 1

in Appendix A depicts the location of the property. The site is bordered to the north

and '!Vest by wooded areas, Worley Furnace Branch and it's tributaries. The property

to the east is also partially wooded and partially developed.

Five (5) acres of the property on the east side of the site are currently being used as

a landfill under the old regulations. This section of the landfill will be closed while

the remaiDing 35 acres will be permitted under the new regulations. Current

operations consist of excavating approximately 20 feet of ov~rbmden and placing

bailed refuse above the natural undisturbed soil. It is expected that the newly

permitted landfill design will require excavation of the residual overburden to a

predetermined depth on which to construct a landfill liner system in accordance with

Tennessee Division of Waste Management regulations. Conversations with the client

and Mr. Bob Gardner (project designer) indicate that a synthetic liner will be used

to meet the minimum liner design standard outlined in Section U00-1-7-.04(4)(a)

The topography of the 35 acres proposed as landfill is partially wooded. This

property can best be described as gently rolling. A topographic survey of the

property is included on the Boring Location Plan (Figure 2) in Appendix A.

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Boring No. 1 3 5 6

Depth (ft) 25.0-26.5 30.0-32.0 18.5-20.0 15.Q-15.6

Density (pet) 109 .. 6 973 104.0 118.8

Moisture 183 25.4 19.1 11.9 Content(%)

Rate of 3.4x10"7 6.5x10'8 15x10'6 l.Sxl0'7

Permeability (em/sec)

All borings were extended to a depth of auger refusal between 23.0 to 45.0 feet

below the present ground surface. Based on past drilling at the site, we believe that

refusal occurred on dense chert beds within the soil. Limestone bedrock is expected

to be approximately 65 to 90 feet below the present ground surface.

Published geologic information indicates that the underlying bedrock. is the SL Louis

limestone of the Mississippian Period. This bedrock consists of a pa.).e to dark

yellowish brown, fine to very coarse grained, thin to very thick bedded limestone.

Local beds of extremely cherty, olive gray, calcareous siltstone or very silty limestone

exist, especially near the base of the formation. Bedrock exposures are rare in this

area. In most cases, the bedrock has weathered to a thick stratum of reddish clay

soil and angular blocks of chert, similar to that descn'bed in our borings.

It should be noted that the SL Louis Limestone is a formation highly susceptible to

dissolution along joints and bedding planes in the rock mass. This weathering can

result in soil piping and other forms of internal soil erosion which can result in

ground subsidence. These features are not prominent in the Dickson area. No

sinkholes were observed on the Dickson 7.5 minute. quadrangle map within a 1.5 mile

radius of the site .

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5.0 HYDROGEOLOGIC ASSESSMENT

Four monitoring wells currently exist at the site, one of which has been dry since

installation. The location of the three (3) active wells is shown on the Boring

Location Plan. The construction of the three active wells is reported to consist of 4

inch PVC pipe, screened from 10 to 20 feet above the bedrock surface. The

screened interval is surrounded by pea gravel to approximately 5 feet above the top

of the screen with a 2 to 5 foot thick bentonite seal above the gravel. The remainder

of the riser pipe is surrounded by cement

Groundwater elevation readings taken on March 16, 1992 revealed the following

data.

WELL SURFACE BOTTOM DEPTII TO WATER ELEV. WELLEL WATER (ft) ELEV.

1 861.9 772.9 78.0 783.9

2 830.9 766.4 19.2 811.7

4 831.2 747.2 35.2 796.0

The results of these readings indicate that the groundwater being monitored by these

wells is perched within. the overburden immediately above the bedrock surface. The

placement of the screened interval within the relatively impermeable clays

immediately above the bedrock will allow for the groundwater to mound at the well

points. This has resulted in an undefinable groundwater flow direction in the

overburden using these three wells .

. A review of the report "Groundwater in the Dickson Area of the Western Highland

Rim of Tennessee", published in 1984, reveals that the groundwater in this area

occurs primarily in the Warsaw Limestone, the top of which is near Elev. 720 to 750.

Figure 3 in Appendix A shows the location of 20 known wells within a 1 mile radius

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Materials excavated from the site should be adequate for use as temporary and final

cover material. Final confirmation should be made on remolded permeabilities of

. representative samples taken from the borrow source. At this time, we expect that

the soil removed during excavation will be used. The soil should be compacted to

at least 95 percent of the standard Proctor maximum dry density within a moisture

range of zero (0) to three (3) percent above optimum. Final recommendations can

be made after testing of the soiL

Our review of the available hydrogeologic information indicates that the existing well

placement at the site intersects the groundwater recharging the underlying aquifer

in the Warsaw limestone. Based on the site topography, Well No. 1 is up gradient

and Well Nos. 2 and 4 are down gradient. These wells have a good chance of

intersecting any contaminated groundwater moving through the overburden before

it reaches the aquifer. To properly use these wells, it will be necessary to bail them

on a monthly basis before sampling to insure proper recharge and groundwater

movement to the wells because of mounding effects.

In addition to the three (3) existing monitoring well points, it is recommended that

monitoring occur in the small tributary to Worley Furnace Branch immediately west

of the site, and the private wells owned by J. Pickett and R. Buchannan south of the

site. If these wells are unavailable to monitor, then a monitoring point should be set

up at Baker Branch •

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APPENDIX A

Figure 1 - Site Location Map

Figure 2 - Boring Location Plan

Figure 3- Water Well Location Map

Figure 4 - Potentiometric Contour Map of Dickson An

Table No. 1- Water Well Location Information

•

• - c DICKSON TENNESSEE

, __ F,_Gu_R~E:-I-_s_'r_E_L_o_c_Ar_lo __ N_M_A_P_

1 ~'W~ k1.;s ;M;'N..:_u'_rE_ro_P_oTGo.:lAnnP_H_,c_M_A_P_

1 1- PIIOJECT 110. PIIOJECTIIAME

24_03

_92

_0

0010 APRIL 6, 1991 DICKSON LANDFILL DICKSON. TF='IIJI\JJ=c;c:;!='!='

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a.,. trom u.s. Oo\llogl"-iil SlltV"Y· 1: t:c.ooo ~u,.,dr:anolfn: Y:urr:•l19Sl). Clutrlotto( U~$). Olcr.•oni1'J5:1). au<! Vonlaor( I ~Ul

FIGURE 4

PROJECT HA'-IE

DICKSON LANDFILL DICKSON, TENNESSEE

• 000 I I

I 1000

0

I 0

4000 1000 F£~T

II I

1000 ~000 METERS

EXPLANATION

HyclrQIOQJ modUitd hom Warcher, 811'\Qham. llnd Loun1Dury (19154)

- 600 - -POTENTIOMETRIC CONTOUR-

•

Shows altitude of water table, March 1960. Dashed \. n•.re approximately located. Contour interval 100 feet. National Geodetic Vertical Datum of 1929

Wells with water levels measured March, 1960

Springs

Direction of ground-water llow

ATEC GROUND-WATER LEVELS AND DIRECTION OF FLOW

~ PROJECT 110.

24-03-92-00010

OA'It

APRIL 6, 1991

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WELL

NO.

277 358 521 525 528 552 663 828 851 852

1384 1385 1386 1387 1388 1389 1390 1392 1393 1396 1397 9029 9030 9040 9041 9046 9048

OWNER

C. Bradford J. Puckett I. Holt

R. Holt

A. Harris G. Donegan

R. Buchanan

E. Lovelace J. Homer

H. Holt

City of Dickson City of Dickson

City of Dickson City of Dickson City of Dickson City of Dickson

City of Dickson City of Dickson City of Dickson

City of Dickson

City of Dickson

K. Walker J. Robinson D. Sanders

D. Sanders D. Donegan W. R Street

TABLE N'O. I

DICKSON COUNTY SANITARY LANDFILL

WATER WELL INFORMATION

WATER

DATE TOTAL TOTAL BOTTOM BEARING

COMPLETED DEPTH YIELD CASING ZONE 4/18/67 100 5 87 85 7/12168 160 3 79 220 3/25/64 129 4 128 125 7t16no 300 2 98 260 S/3tno 360 71 120 2!24no 105 50 100 100 mom l30 10 127 130 4128n3 200 2 47 6/18nJ 160 5 6/2Sm 340 160 1211180 300 4 136 220 10120/80 160 400 106 143 10/6/80 250 20 106 116 10/4/80 300 8 103 252 1012/80 250 150 181 197 8/4/80 300 150 144 180 7/24/80 350 14 ll5 307 7/14/81 280 165 127 145

320 12 162 245 7n/80 280 110 127 130 7/2180 340 175 318 330

75 75 212 107 110 100

138 125 ISS 155

USE

Home Home

Home Home Home

Home

Homo Home

Home Municipal Municipal

Municipal Municipal

Municipal .Municipal

Municipal Municipal Municipal

Municipal

Municipal Home

Home Home

Home Home Home

•

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• FIGURE 3- WATER WELl . LOCATION

PROJECT NAME

DICKSON LANDFILL D~KSON, TENNESSEE

DICKSON, TENNESSEE 7.5 MINUTE TOPOGRAPHIC MAP ATEC v PROJECT MO. DATE

24-03-92-00010 APRIL 6, 1991

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LEGEND:

ei) ATEC TEST BORING L~CATION e LAW ENGINEERtlG BORING

ED EXISTING MONITORING WELL LOCATION

• BORING SAMPLE ~

S.o-4.1

2 10.11.5

3 16-15.5

.. 2o-21.1

5 25-20.5

e 30-31.5

7. :1$-38.1

a -1.5

I ~

10 50-51.5

2 1.0..2.6

2 3.$-S.:O

• 3 4.0..7.1

4 8.6-10

I 13.6-15

s 11.6-20

7 ZJ.6-25

U.s-:10

g 33.6-35

3 15-18.5

~ 20-21.1

3 25-26.1

.. JG-32

6 ~· s -1.5

7 -46-48.1

s.o-e.s 2 10..11.5

3 15-18.5

.. 20-21.5

5 25-2111.5

e 30-31.5

7 35-35.5

• a <40-41.5

DICKSON COUNTY SANITARY LANDFlLL

LABORATORY TEST RESULTS SUMMARY

SAMPLE ATIERBE.RG LIMITS

TYPE CLASS, !J. PL 5 ss ss CL :w 21 13

S8

ss CL 'It 17 20

ss sa C1P

ss cs ai 154 22 42

sa ss

ss sa OL ., 20 26

ss C1P

88

ss CL 35 11 20

98

ss GP

ss

ss

S8

cs

S8

cs

SlBVE

ss A 21 35,

88

ss

S8 GP

88 ai 50 24 3Z

cs 8S

ss S9 GP

" ss CL •7 11 2t

HYDROM PERM. (ciD/Se.:}

3.41!..07

s.se-oa

• SAMPLE ATTERBERG LIMIT~

~ SAMPLE ~ ~ CLASS. !::h ~ !'! SIEVB HYDROM ~ 5 6.11-46 8S Gl'

10.11.6 ss

3 1~16 sr 4 20-22 8T 1.5E-oe

2&-21 cs ~~ ss ~2 sr

111-111.5 cs UE-07

2 2041.6 8S

3 a-:as.J ss ?

4 30-31.1 8S Cl. 41 21 20

5 36-;!8.6 ss GP

a 411-41.& 88

AVEFIAOE 42 17 24

• See enclosed graph sheet

•

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REPORT OF, SOil ANALYSIS c... 3-23-92 w

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REPORT OF· SOIL ANALYSIS c.,. 3-18-92 w

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REPORT OF. SOIL ANALYSIS OIIC' 3-23-92 w --

• • •• U.S. STAACWIO :51~~ IIi f(S U.S. SlAJ<OAAO SIM HU>IIIOS lmlOIOII rnA

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ATEC w REPORT Of. SOIL ANALYSIS Ouc 3-18-92 ~-·-·~-···-·-·-

~~~~ ..__ ____ ~ --

•

•

•

APPENDIXC

Logs of Boring

Field Classification System for Soil Exploration

Important Information About Your Geotechnical Engineering Report

ATEC Associates, Inc.

•~ of Tennessee

624 Grassmere Park Ro;~d, Suite 1 Nashville, Tennessee 37211·3662 615-331·5016

LABORATORY REPORT OF SOIL EXPLORATION

Client _____ ___!D~i:.=c:ks~o:!!n~C~ounllt.r:v...:San2!!!u.iJ..tag<ry~>.L.!OL4anUJrl.uf;.a1..~ol.r.l _______ Boring I ___ .ca.::.-J._.....!p::..!:a!)Og:Ee.-2~o~f-=.2 __ _

Architect Engineer Gardner Engineering Job I -----"2.:t.4::J-0.~.;3~.:-:;~9:£2::J-Qo801!.0!£1¥0 ___ _

Project Name Dickson County Sanitarv Lap4f111 Drawn BY---->1.!.<...---------

Project Location Dickson, Tennessee Approved By ----J~---------

DRILLING AND SAMPLING INFORMATION

Date Started 03/03/92 Hammer Wt. 140 lbs.

Date Completed 031°3192 Hammer Drop 30 ln.

Drill Foreman DV Spoon Sampler 0.0. 2 in.

! Inspector .TS Rock Core Dla. ln.

Shelby Tube 0.0.. w

Boring Method ·HSA ln. 0.. !~ >-

1-

SOIL CLASSIFICATION ::!! w w

I~ :J:I: ...J ...J

l :I:~ 0.. 0.. ~li: 5::< :id :i SURFACE ELEVATION - a:w

~~ ~:z: < I~ t;o (/)

- -- 29.0 --- :tri -- Orange to red moist stiff to hard silty· - clay· (CH) and chert gravel with trace -- fine sand =~ ss l~s - ----- -- IC: -- soae small chert below 35.0 feet

- -- -~ ss 1101 - -- -- ·-- -f--- -- --r 41l- R cs 3: -- :..

- - 9 ss 3( - --- --: --- -- -- 14~ --- -

110( - - 10 ss - -r---- -- -- -- -- -- !sn --- -- 51.5 - 11 ss llO<

- Boring discontinued at 51.5 f~t -- -- ------GROUND WATER DEPTH SAMPLER TYPE

55-DRIVEN SPLIT SPOON ST-PRESSED SHELBY TUBE CA-CONTINUOUS FLIGHT AUGER ·RC-ROCK CORE

'V AT COMPLETION FT. W AFTER. FT.

WATER ON RODS FT.

~ c

.S2 ~ a;

~;t ,;;; ~~ "'o "-liiD Uiz

17

31

50+

21

21

TEST DATA

~ q; .. .. ! .. 1:-Q. -.; -.; E E c ,.-';;·e 0 _g ID c: - C::·-(J 0 'C:;j....J 'O,e..: .. -.

~ .. c:- c: =>,.~

~0~ If~ O· 8 0')"'3 i) " -=c:c: _c: -u Q;_g-.!!

g~,e .:s2 !!!..., - £...1CL. ;;> .. !~ .... UCI) ::0 <>~:~. -.0

:5 d i.a' ~-3 ::...J...J :z: <C...JQ.

LL=64 PL"22

BORING METHOD HSA-HOLLOW STEM AUGERS CFA-cONTINUOUS FLIGHT AUGERS DC-DRIVING CASING MD-MUD DRILLING

1-1-1-1-f.-1-1-1-1-~ 1-~ 1-1-~ 1-~ 1-1-~

1-1-1-~

f-

~

f.-

~ 1-

~

1-1-1-

i ATEC Associates, Inc. of Tennessee LABORATORY REPORT

OF SOIL EXPLORATION

-624 Grassmere.Park Road, Suite 1 Nashville, Tennessee 37211·3662 615·331·5016

Client Dickson Count¥ Sanitary ranrlf111 Boring I# __ B2-:..2L-...!:P:sa::tq.!!.a_,l!:....l<o~f_:..2 ___ _ Architect Engineer Gardner Engineering Job #l ___ .t.24a.:-::~.OJ..l3c:-.::z9.t.2::{)()()::1JLIIJ.I.luo ____ _ Project Name ___ D..;;.i_cks_o_n_c_o:..un...:....;;ty;:.._S...;an=ita.ry=-=-.:.Lan=d;;;:£.:.1.:.11:..-_______ Drawn By _ _::.JO=-----------Project Location --=D:=1~clc!:::s~o::.!:n~,_T~ean!.!Jnll::ea;ssi!.!ee:!ii...--__....;---------- Approved By ...J::J..-----------

DRILLING AND SAMPLING INFORMATION

Date Statied __ 07{).~ Hammer Wt. __ __.l!..:l4~0,___Ibs. Date Completed 02/10/92 Hammer Drop 30 ln. Drill Forsman DV Spoon Sampler O.D. ln. Inspector ____ J_s ___ Rock Core Ola. _____ ln. Boring Method HSA Tube 0.0.. in.

SOIL CLASSIFICATION

SURFACE ELEVATION -

and silty

to moist hard silty clay (CL)· .,..ith .trace fine sand and some

weathered chert

iii {!!. c .2 ~ a; c tfU:" -o'iii ;;~

"CC-.! cc_. cnz

13

19

49

43

. 50+

Very ao1st at 20.0 feet

Weathered chert gravel (GP) and silty clay vith trace fine sand

SAMPLER TYPE SS-DRIVEN SPLIT SPOON ST-PRESSED SHELBY TUBE CA-CONTINUOUS FLIGHT AUGER RC-ROCK CORE

G~OUND WATER DEPTH 'V AT COMPLETION FT. W' AFTER Ft

WATER ON RODS Ft

50+

41

TEST DATA

<I> > ·a;

"' iii 2:! a; ?: Q. ·;;; E E c !l'E§ 8 e <I> c:

~~~~~. 0 "'

C:J.J "g:U: cf~ ~ c ::::l'O,!:?

0 o-; u; c o'ii ::l u ~:3"£. ;:cc: _c ~~ s~~ .=.g ~

;~ Q . <>en :::s <>Q. E..o .,- =......I....J 5 r:i' e.o> z s: <(..JCI..

BORING METHOD HSA-HOLL.OW STEM AUGERS CFA-CONTINUOUS FLIGHT AUGERS DC-DRIVING CASING MD-MUD DRILLING

ATEC Associates, Inc.

•~ ofTennessee

...... I 624 Grassmere Park Road, Suite 1 Nashville, Tennessee 37211-3662 616-331-5016

c-:11ent Dickson Cognti Stn1totx Architect Engineer Gardner Eng~~t1ng

Project Name Dicltson County Sll.ll;!,!;Aa

Landf1ll

Lil.lldfill

Boring II Job It Drawn By

LABORATORY REPORT OF SOIL EXPLORATION

B-3 Page 2 of 2

24-03-92-00010

JO Project location Dicksont Tenness2e Approved By

--------

--------------------------------------

• -

DRILLING AND SAMPUNG INFORMATION

Date Started___ll4~ Hammer WI. 140 lbs.

Date Completed 3l4l!12 Hammer Drop 30 ln.

Drill Foreman ov Spoon Sampler o.a , ln.

I~ Inspector JS Rock Core Cia. ln.

L.U

I~ Berino Method CFA Shelby Tube 0.0.. in. Q.

> "" I~ SOIL CLASSIFICATION J: w w

:;):X: _, _, 1: ::t:W li ~t: a. a. t:~ :lEo :::lE

SURFACE ELEVATION - ......... ~~ ~z < ';!!. me <n

---311 -

-- l1o - 4 cs -:--

33.0 --

Tan to brown silty clay (CH) vith so111e -chert II'; -

Very moist at 35.0 feet -5 ss ~00 -

-f-------Moist, oranqe below 40.0 feet

An-

-- 6 ss .00 -------14" ---

4"- " 7 ss lao -Borinq discontinued at 46.5 feet ----

!so--= -----------GROUND WATER DEPTH SAMPLER TYPE

SS-DRIVEN SPLIT SPOON Sf-PRESSED SHELBY TUBE CA-CONTINUOUS FLIGHT AUGER RC-ROCK CORE

'V AT COMPLETION FT. W AFTER FT.

WATER ON RODS FT.

c;; {!!. c S! ~ 0 c: ~u: ~; "'o "'-;m u;;i

36

38

50+

TEST DATA

. .. .2: "' i ... .. ,..

Ci -;; E E c: ,::: ·E 0 e ~ <= ~:5:J 0

~== j.c:s ~ .5! ::l':l.!:! _o.~ If~ c

0~ 0 ct:;v; -c:c: _c - .. (.) - CTI<I f-.

.. __ al!!{i! ~{i! .C..JC.

"''" .;~ ;; I + u~::J <>Q, -"' :3 r:l ti.d' .. - 3: =.J~ z < -I a..

BORING METHOD HSA-HOLLOW STEM AUGERS CFA-CONTINUOUS FLIGHT AUGERS . DC-DRIVING CASING MD-MUD DRILLING

i-

"" 1-

1-

1-

1-f-

f-f-

~

"" f-1-1-f-1-f-

f-~ I-;...

1-f-f-1-1-

f-f-~ 1-1-1-1-