GEOLOGY REPORT

Environmental Assessment Studyand Engineering Recommendations

For Remedial Action

at

<M^—<M(M00

Vertac Chemical Corporation Site/Jacksonville, Arkansas

Submitted by

Developers, International Services Corporation»

80317 February 1982

031041Q7

TABLE OF CONTENTS

I. Introduction1. Authority2. Basis of Report

II. Area Geology1. General2. Interior Highlands3. Coastal Plain

III. Site Geology1. General2. Unweathered Rock3. Weathered Rock4. Overburden

Appendix A

r<v(MCM00

I. INTRODUCTION

1. AuthorityPreparation of this report was initiated at the requestof Mr. R. D. Karkkainen, Director of Environment andSafety, Vertac Chemical Corporation. This geologicreport is submitted in accordance with the 04 September1981 DISC proposal for an Environmental Assessment Study /and Engineering Recommendations for Remedial Action atthe Vertac Chemical Corporation Site at Jacksonville, ^Arkansas.

<M2. Basis of Report CM

0A great deal of information is available concerning the Qgeology of the Vertac site at Jacksonville. Severalsubsurface investigations have been performed forvarious purposes at the site. The Arkansas GeologicCommission has published a geologic survey water-supplypaper for an area that includes the site. Geologicinspection reports made by many geologists and engineersemployed by DISC and others are available. This reportsummarizes the geologic descriptions of the site obtainedfrom each of these sources.

03104189

II. AREA GEOLOGY

1. General

Physiographically, Pulaski County is bisected by thefall line of two geologic provinces: the InteriorHighlands and the Coastal Plain, see Figure II.1.1.The Interior Highlands are topographically hilly andunderlain by Paleozoic rock. The Coastal Plain isrelatively flat and underlain by unconsolidatedsediments that dip gently to the southeast. Thesesediments are underlain by the consolidated rock ofthe Interior Highlands. Figure II.1.2 illustratesthe vertical relationship of these units; Table II.1.1gives their lithologic and water bearing characteristics,

in

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SO ;-"LES_i

FIGURE 1 1 . 1 . 1 .

2. Interior HighlandsThe consolidated rocks of the Interior Highlands aredissected. Weathering has altered the rock abovethe lowest level of the water table to soil and"rotten rock". The soil and weathered rock combinedhave a maximum thickness of about twenty feet. Theweathered zone is more porous and permeable than the

03104190

original unweathered rock. Water occurs in theintergranular voids of the weathered rock and soil.Water occurs in secondary openings such as jointsand fractures in the unweathered rock.Groundwater moves in the direction of slope of thegroundwater table. This gradient generally followsthe topography in the weathered zone. In the un-weathered zone, however, the slope of the watertable is heavily influenced by the geologic structure.Flow is generally toward the synclinal axes, i . e . inthe direction of dip.

Figure 11.1. 2—Relationship o( the rocks of the Coastal Plain to those of toe Interior Highlands.

3. Coastal PlainThe Coastal Plain sediments include the seven units (3through 9 ) that are illustrated on Figure 1 1 . 1 . 2 . Theseunits vary from high plasticity clays to sands andgravels. Permeabilities vary considerably from unit tounit. Table II.1.1 shows the wide range of materialsthat can be expected in the Coastal Plain. Aereal out-croppings are unmapped for much of the Coastal Plain.

Units 4, 5, 6 , and 8 are generally fine grainedmaterials that do not yield considerable water,however, units 3, 7, and 9 are major sources of waterin some areas. Unit 3 consists of beds of claystone,calcareous sandstone, sandy limestone, marl, andconglomerate. Its thickness at outcroppings has beenmeasured at 7 to 60 feet. Unit 7 consists of fine tomedium sand with some interbedded clay lenses. Thetotal thickness averages 320 feet. Unit 9 consistsof terrace deposits and alluvium. Sand is commontoward the top of the terrace deposits. The alluvium,deposited by the Arkansas and Mississippi Rivers,blankets much of eastern Arkansas and consists of afine grained top stratum that becomes coarser withdepth. Unit 9 is thickest near the Arkansas River(120 feet) and much thinner elsewhere.

Table I I . 1 . 1 .Lithologic and Water-Bearing Characteristicsof the Rocks in Eulaski and Saline CountiesArkansas.

A—

Quaternary

Terfur(lodod-" S?"*'Clalboma,wueaiaadMidwayGroups)

Cretaceous

PtiuuylTanlanto

Ordovlelan

Utbotedeunit

9

•

7

•

5

«A

4

3

2

1

Tbidca—(feet)

0-120

3SO+

207-112

(MM

0-317

T

0-tM

0-185

»

LItbolofIc and water-bearint characteristics

Cl»y md lilt (radios downward Into wad uid (ml; IDplaces bordered or underlain by terrace depodte eon-slatlni of dark-red day and white sand. The basal sandand ir»T»l wait yield* from 300 to 2,000 fpm at water towell*.

G ray.creen, bluish,cream, and ocher siltydaymterbeddedwith brown carbonaceous clay, thin Hcnit* beds, andmedium to eoanesud. Yields small ousaitUleaef water''•to domestic well*.

Continental homofeoeous tan or »ray fin* to "^Hn™ •uidcontalnin* layen and lenses of (ray *Uty day: locally •contain* a bed of dark-brown woody llfnite at the but.Utilized only for domestic supplies in the mart area.Well yields up to 860 fpm reported 12 mild ucth ofSaline-Grant County line.

Oark-chocolate-browa lllty to sandy carboiiaceoo* dayIntcrlamlnated with white micaceous land and con-lalnlni scattered lignite and siderite layers; (radMupward Into dark-brown medium to eoarM •ad. Alarce deposit of iraTel and coarse sand In the low*r putfrillies the bichlaoda. Well yields are unpredictable,and teat drilltni Is advisable.

Greenish- to blulsh-ftray sllty clay and (rayish-freea Anesand alternate with llcnite, black llfnttic and browncarbonaceous day, and hard layen of siderite. Bauxitedepoilte (ringe the syenite hills. Not a food SOOTOB ofwater because of lade of coarse material*.

Nature of materials' unknown, but apparently too floa(rained to yield more than 1 or 2 (pm to wells la Jackson-Tllle are* and south of Ben ton.

Dark-bluish-cray to black sUty day containing layen ofsiderite. Varicolored day occurs at the top in places.Does not yield water to wells.

Oreenlsh-irsy and dark-iray clay, sandy In places. Inter-bedded with marl, sandy ilsueonltic limestone, aodcalcareous sandstone. Well yields up to 350 (pm areobtainable from the limestone and sandstone.

Lixht-cray or bluish Igneous rocks contalninf pendants ofaltered older rocks. Does not yield water to welb.

Sandstones, shales novacullte, and chert. Well yieldsnormally are 10 ipm or less, althoufh the highly shatteredclicrts have yielded up to 200 Kpm in Garland County.Well yields are dependent on local conditions, and dryholes are common. Well depths normally are less thanISO feet.

03104192

III. SITE GEOLOGY

1. GeneralThe subsurface investigations that have been performedat the site in the past have often included testborings and sometimes test pits. Logs of these boringsand pits are presented in Appendix A. The location ofall known borings and pits are shown on Drawing No. G-l.Figure III.1.1 shows the general areas where the strat-igraphy has been defined by these previous investiga- 00tions and indicates the degree of definition in each -r-area. ^The site is located either very near or possibly astridethe fall line of the Inland Highlands and Coastal Plain °described in Part II of this report. Published geologic 0maps indicate that the entire site lies slightly west 'of the fall line. Figure III.1.2 shows the relationshipof the site to the fail line as taken from the Geohydrol-ogic Map of Pulaski and Saline Counties', Arkansas. FigureIII.1.3, taken from the Geologic Map of Arkansas, preparedby the Arkansas Geologic Commission and the USGS, indicatesthat the subsoils are of the Lower Atoka Formation, againindicating that the site is located in the Interior High-lands. However, clays, said to be of the Midway Group,are known to exist in the northern part of the site andthe Midway Group is a unit of the Coastal Plain. Also,surficial geologic inspection of the eastern portion ofthe site indicates that the near surface soils are sedi-mentary. This also supports the conclusion that thesite is bisected by the fall line. In .either case, ata relatively shallow depth, the entire site is underlainby the consolidated rock of the Atoka Formation thatsurfaces in the Interior Highlands and underlies thesediments of the Coastal Plain. -

2. Unweathered RockThe Atoka Formation consists of alternating beds of sand-stone and shale. Outcroppings measured at the site indi-cate that the bedding dips at about 30° to the Northeastand strikes at about N 6 0 ° W . Numerous discrepancies arefound when reviewing existing informaion concerning thestrike and dip of the rock strata at the site. Thiscan be attributed to the proximity of the site to thefall line mentioned above. Outcroppings can be foundon site that vary 10° and more in both strike and dip.The strike/dip combination stated above best represents:^he bedding at the site.

7 03104133

Drawing No. G-l includes a geologic section taken inthe direction of dip, N 30'E. This section is basedon the records of test borings made during previousstudies that are included in Appendix A.

3. Weathered RockAbove_^fche unweathered rock strata, there exists a /ratum - eryweathered rock that is generally about

(five feet thick.) The permeability of this weathered Oslrock is mostly intergranular and typically higher than C\Jthat of the unweathered parent rock found below. ^

CM4. Overburden ' ^———————— 0

The surface soils at the site consist primarily of silts 'and clays with some sand, gravel, and rock fragments.The permeability is generally lower than that of theweathered rock below.The origin of the overburden soil varies across thesite. The western portion of the site, with the excep-tion of man made fills, is covered by residual soilsof the underlying rock strata with shales degradingto clays and sandstones degrading to sandy silts. Thinalluvial deposits of no consequence are located nearthe drainage ditches across the site. The easternportion of the site appears to be blanketed with thesediments of the Coastal Plain. The total thickness ofthe overburden varies from almost non-existent in lowareas to over twenty feet in the northern areas andpresumably in the eastern areas. The geologic sectionshown on Drawing No. G-l illustrates that this thick-ness generally varies with the topography.

ll

APPENDIX A

mC\JCMCM00

LOG OF BORINGPROJECT: VERTAC - CONTRACT NO. 68-06-0015CLIENT: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

DATE: 10-15-79 TYPE: AUGER CASED TO:

79082 SBORING NO.: EPA -1LOCATION: JACKSONVILLE, AR.

GROUND ELEVATION: 267.0'

x"t-ua.»-UJ0

0mo2--0:1-:-« QtC. W2^?< UJ 0h- 2 -)Ul HJ 0

&

<—>—Q«TcrQ0£

'•<»LUl_>ea:LU00;<->>-

LEGEND:BoreholeBoreholereasons.

dry at completion of drilling.then backfilled for safety

13 SAMPLEX STANDARD P E N E T R A T I O NIQ ROCK CORE

DESCRIPTION OF STRATUM

WATER INFORMATION

50/.3Soil and gravel FILL to 0.5'Very firm to very dense reddish tan very silty fine SAND ——i" < with <;anri«;tnnp frspmpntg_______________________/^^BORING TERMINATED AT 2' - AUGER REFUSAL c\1

04OJ

NOTE: Auger drilled borehole EPA-1A about T west of EPA-1 0and encountered auger refusal near 2.'. Wash drilled oborehole EPA-1B with roller cone about T east ofEPA-1 and encountered practical refusal near 2'.

03104199

LOG OF BORINGPROJECT: VERTAC - CONTRACT NO. 68-06-0015CLIENT: UNITED STAIES ENVIRONMENTAL PROTECTION AGENCY

DATE: 10--i 5-79 TYPE: WASH CASED TO:

79082 SBORING NO.: EPA-2LOCATION; JACKSONVILLE,

GROUND ELEVATION: 255.

zxiri_uc- f-UJ0

^CDZ</1

-1C.2«Sw

o2-tr»-^-«^occ "*Zl- ?<; ID 0>- z _iI/) UJ CD

&

<t^~-f—Q<tCrQCCLUt_?CC UJdfa:<-»^—

WATER INFORMATIONLEGEND:0 SAMPLEX STANDARD PENETRATION(H ROCK CORE

Water level near ground surface atcompletion of drillinfl. Borehole findwith rock upon completion of drillingfor safety reasons.

DESCRIPTION OF STRATUM

Soil and gravel FILLMLML/

SM

Stiff tan and reddish tan fine sandy clayey SILT

Finn tan, reddish tan, and gray clayey very sandy SILTin

J JLx

ML 50/.4SO/. 3

Very hard tan, brown, reddish brown, and gray cloJey SILTwith sandstone and shale fragments and layers^very weatheresha le)____ ,__________________ v -_____^

BORING TERMINATED AT 9 . 7 ' 0

"-(

03104200

)

LOG OF BORING 79082 SPROJECT: VERTAC - CONFRACT NO. 68-06-0015 BORING NO.: EPA-3CLIENT: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY LOCATION| JACKSONVILIX,

DATE: 10-16 THRU 19-79 TYPE: WASH/CORE CASED TO: 18' GFtOUISIKEbEV 'ON^aE

z3:1*1i-iii0. l*.UJQ

5 •

-10-

15 •

-ZO-

25-

-30-

35

-40-

45

50

ms>-w

SM

ML/'CL

ML

ML/CL

2

o9-m ir>-^i «'<a- ooc wS Zl- S<t <l*i 0W t- 2 -1

(0 UJ CDQ.

^ 60/.5

^ 50/.3

3 70/.3 -

5 50/.1(50.50/.1)

" 50/.2(NR)

-

ercr00:

LU()Q:UJ00:<-»^—

89"73

4623

7317

..- ..« ——..--.. WATER '(NFORIIflATIOtf-'-^LE c ^^hote bailed to 10.8-^n co»i

X STANDARD PENETRATION of coring. Water level at T2.2' •(II ROCK CORE and 1 2 '3 1 on T0-26-79- ^

DESCRIPTION OF STRATUM

Gravel FILL to 0.5'A Finn tan and brown clayeysnty TinesANDwith sandstone

^fragments-Possible FILL ^ —Stiff tan, reddish tan, and reddish brown firfe^sandy veryclayey SILT with sandstone fragments CM

———————————————————,———————————-——cq.—————•——S, Weathered SANDSTONE lavpr - -

Hard to very hard tan, reddish tan, gray. andWack clayeySILT with some sandstone lenses and fragments 1(very weatteshale) • -

Very hard tan, reddish brown, and gray clayey SILT withsandstone lenses and fragments (weathered shale)

Moderately hard black and dark gray clayey SHALE (rollercone drilled through shale without sampling per directionof Project Officer)

•

Hard and very hard gray SANDSTONE(some 60 to 70 fractures)

Moderately herd and hard grey and blact; SHALE with sencszo-pcrtings and layers (occcs i c-'id 7 0 ' ''!'=ctu'(¥£»)lf»42nl

haro aray 5^'^'SIO'iEl —--

)LOG OF BORING 78082 S

PROJECT: VERTAC - CONTRACT NO. 68-06-0015 BORING NO.: EPA-3CLIENT: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY LOCATION: JACKSONVILLE, Al

DATE:! 0-16 THRU 19-79 TYPE: WASH/CORE CASED TO: 18' GROUND ELEVATION:

zIU»|-UQ.t*.UJ050

5 5 -

DU

65 •

-70-

75 -

-80-

85

-90-

95 -

~iW

s ;S>-(A (

•

I

Zo2-

HJ Ct-^-«^

0. On: WS Zl- 4 4 111 0U> •-2 -i

</) |lJ ffl

0.

i

K

§S

LU()QCteJooe<-»»—

9820"

?L44

8831

8852 •

8350

?§-28

9454

WATER INFORMATIONLEGEND: ——————————————————————————————————

Q SAMPLEX STANDARD PENETRATION

P] ROCK COREDESCRIPTION OF STRATUM

Moderately hard and hard gray and dark gray SHALE wp-thsandstone partings and layers (occasional 60 fract^j-es)

Soft gray and dark gray clayey SHALE (\1

Moderately hard and hard gray and dark gray SHALE wHhsandstone partings and layers (some 30 fractures)

Hard and very hard gray SANDSTONE with shale partings andlayers from 63'-64' and 66.5" - 67.5' (some 30-to 60°fractures)

Moderately hard and hard gray and dark gray SHALE wi-th Isandstone partinas and-layers and with clayey shale zone fra70'-7T (some 201'to 30° fractures)

Hard and very hard gray SANDSTONE with shale partings andlayers from 75'-76' (some 40 to 60 fractures)

Soft gray and dark gray clayey SHALE

Moderately hard and hard gray and dark gray SHALE withsandstone partings and layers (some 20 to 30 fractures)

Hard arav SANDSTONE -Moderately hard and hard gray and dark gray SHALE withsandstone partings and layers (some 10 to 20 fractures)

OSl04202 „H^ c-?v ^Nn^7n';F —'r'.. deratfcly ta-.rc cr.^ c.ard gray and dark oray S-AlE withs;-ncstone r.artir,c:s and 1sver<; f<;nmp 10 to 20 ' •f'-cLrlur^<-—-.

)

(

1

J

1

"

-'

—

-

••

PROJECTCLIENT:

DATE: 1

z-?SO.h-llJQ

5 •

-10-

i

-

-

-

--—

0ms>-</)

CLr i /

Ml

LOG OF BORING 79062 s

: VERTAC - CONTRACT NO. 68-06-0015 BORING NO.: EPA-4UNITED STAICS ENVIRONMENTAL PROTECTION AGENCY LOCATION: JACKSONVILLE. AR.

0-19-79 TYPE--AUGER CASED TO: GROUND ELEVATION: 264. Tz

o9-UJ tC»-^'-1 « o. oo; m2 z»- •i.4 <3 UJ 0trt t- z -•

Ul UJ 0&

^ ^ '^ 60/.6-y,io,ay.i

«< ,^c-»<tcyQo:UJt-aQ:LUOn:(>^-

WATER 'NFORMATION

" -,...-. , Seepage observed near 4' during drininaa l o PE^T,.TK,H yanSer. vg•Vn •-Vfinl;f p^I!) y-%Tl-(11 ROCK CORE (borehole caved in at 3').

DESCRIPTION OF STRATUM i

bravel ULL with some roots to about 0.5'Finn tan. brown, and qray sandy siltv CLAY with fme to ir.ediun*very soft to stiff tan fine sandy very silty CLAY mm scatteredfine medium oravelfsamDie has chemical odor and is^ery wet)

——^ Apparent SANOSTONE - no sample obtained t\1 "——l

BORING TERMINATED AT 5' ' S0

NOTE: Drilled borehole EPA-4A about 2'north of EPA-'4 andencountered refusal near 6.3'-no samples taken.

* gravel and with some shale and wood fragments (sample hasvery strong chemical odor) - Probable FILL

•

05104203

)

PROJECTCLIENT:

DATE: 10

z *xm»-UJO.tt.UJ0

5

-10-

- 1 5 -

-20 -

25 -

-30-

35 .

-40-

45 •

50

m>-u>

ML/cLMl /nL/

CL

MLML

LOG OF BORING 79082 s ^: VERTAC - CONTRACT NO. 68-06-0015 BORING NO.: EPA-5

UNITED STATES EN V I RONMENTAL PROTECTION AGENCY LOCATION-JACKSONVILLE, AIL

-22 THRU 24-79 TYPE; WASH/CORE CASED TO: 70' GROUND ELEVATION : 290.S• • ' ' z •

oo--UJ tCt-^

) < < 0. QCC.W2 2?$< 4 u 0OT t-Z -*

(A hJ CD&

50/.3

<-»-o*f0r00;

LU(>CfLUoce0'—

'

29"0-

75,41

-1131

10062

10055

. ..--..- . ; WATER INFORMATIONn SAMPLE Borehole bailed to 14.8'upon completiX STANDARD PENETRATION ofcoring. Water level at 7.3' onffl ROC^CORE 10-26-79- . ;

DESCRIPTION OF STRATUM

Grass, root. and topsoil VENEERFirni to stiff reddish tan, brown, and black fine sandy clam

—s. SILT - Possible FILL ^Stiff reddish tan to reddish tan, brown.and bladte finesandy very clayey SILT (MVery stiff to hard reddish tan. brown, black, an<)\Jgrayslightly fine sandy clayey SILT with shale fragmentsVery hard black and gray clayey SILT with shale fragments(weathered shale) ^

Soft brown, tan, and gray SHALE '

Moderately hard and hard gray and dark gray SHALE (withvertical and near vertical fractures throughout most ofzone)

Very soft gray clayey SHALE

Moderately hard and hard gray and dark gray SHALE(with vertical and near vertical fractures throughoutmost of zone)

03104204

PAGE 1 OF ?

-

,

' • • • ' ' ) !i

PIc

; D<

z-TtIL)i-w

• B. -•Id050

bc:55

•SO-

BS-

-70-

75-

SO-

BS

90--

95-

^

ROJECLIENT

»TE:10-

) •0CDs>-us

.

•

— —

T: VERTAUNITE

-22 THRU <z

o9-UJ 0=1-:-

» fl «t a. Q (E wS z>- £< < u 0M i-z =i0 UJ CD

&

[1

— —

c -D ST/

24-7c

<t—h-C«COff

LtJ(Q;Ll.00;l-?'-

10C64

364

7914

817 "

10054

l

LOG OF BORING 79082 SCONTRACT NO. 68-06-0015 BORING NO.; EPA-5ATES ENVIRONMENTAL PROTECTION AGENCY LOCATION: JACKSONVILLE. AR.

3 TYPE: WASH/CORE CASED TO: GROUND ELEVATION:- 1 FffFND- WATER INFORMATION7 Q :.AMPLE. X STANDARD PENETRATION

} G3 KOCK COREDESCRIPTION OF STRATUM

Moderately hard and hard gray and dark gray SHALE' (60 to vertical fractures throughout zone) °

(CM

—\Hard gray SANDSTONE , c\1 /—^o*"81®^ hard and hard 9ray and dark gray SHALE ^(30.1 to^ertica1fractures thn)uahputzpne} 0,

Soft gray clayey SHALE

Moderatly hard and hard gray and dark gray SHALE(50 to near vertical fractures throughout zone) -

•

CORING TERMINATED AT 90'

03104205

1

(i

i•

/

LOG OF BORING 79082 S ;PROJECT: VERTAC - CONTRACT NO. 68-06-0015 BORING NO.: EPA -6 !CLIENT: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY LOCATION:JACKSONVILLE. AR.

DATE^O- 25-79______TYPE: AUGER CASED TO: GROUND ELEVATION: 282.1'T z I -J L E G E N D - { WATER INFORMATION

z -, u, g2- ^Q. a SAMPLE Water level at 4.2'upon completion ofxS § a? SSIw OQ; y STAND&RO PENETRATION observation well install ati on. Water 1 evel^ s. I t i JH ROCr CORE at 3.9-on 10-26 and at 3.Ton 12-4-79.g w w Sig^ gS.——————————————1———————————————————————

o. 0 D E S C R I P T I O N OF S T R A T U MI ML/ n I | S y a s s ana root VLI^fctK over soil and gravel HLL to 0.5' .

—— CL Stiff fan,brown,andreddish brown sandy.clayey SiLftp sandy silty——-—— ———————>CLAY with sandstone fragments and gravel- Protable FILl ^-——— J— ————— __ Vpry «;tiff l-an hrnwn clavev fine sandv SILT - Probate FILl—— CL pjl•Ur tg, very.sti.Tt tan. reddish tai,i,-and".browp-s,nty SAP<,ly5 . .•±_ .^_____ __ CLAY with sh j1e fragments and gravel •'PossiBle FIfl tn y.5"— ML/ 3507'4 Hard tan, brown, black, and gray clayey SILT (weathered S}ia1e) ;—— CL ^ ____ __ Cv____

—— at^'i ver^ soft and soft black and dark gray with reddish tam, |— 1 0 - 3 5 0 / 3 clayey SHALE ° • :

—— Soft b l ack SHALE (no samples taken per direction of Project B .—— Off icer ) • .

~~ BORING TERMINATED AT 18 ' _ | •

~ZZ NOTE: Observation well installed to 10 ' on 10-25-79. | •

)

PROJECT: VERTACCLIENT: UNITED

DATE.- 1Q-25-79

LOG OF BORING- CONTRACT NO. 68-06-0015STATES ENVIRONMENTAL PROTECTION AGENCY

TYPE: AUGER CASED TO:

79082 SBORING NO.: EPA -7LOCATION: JACKSONVILLE. AR.

GROUND ELEVATION: ?83 5'

x ui-UJOLi*.LLlQ

0CD

UJ

0.2<t/»

Zo9-^i^stO UJ (0

a

K§gLU(_>(SLUOtX

WATER INFORMATIONLCGEND:Q SAMPLEX STANDARD PENETRATION

IH ROCK CORE

Borehole dry at completion of observationwell installation. Water level at 16.6'on 10-26 and at 6.3' on 12-4-79.

DESCRIPTION OF STRATUMWT

CL 1 1

lirass and root VkNLLK————————————————————————Stiff reddish brown clayey fine sandy SILT to silty finesandy CLAY with fine to coarse gravel

CL/CH

Stiff to very stiff reddish tan and reddish brown sandy verysilty CLAY

1 0 - C L S50/.5

93

X;83/.9

50/.2

5Q/ Q

^\Very hard tan, reddish tan, reddish brown,and gray siltoCLAY ^

00

Very hard tan, reddish tan, and gray clayey SILT

BORING TERMINATED AT 1 8 '

NOTE: Observation well installed to 1 7 ' on 10-25-79.

OSH04207

')

LOG OF BORINGPROJECT: VERTAC - CONTRACT NO. 68-06-0015CLIENT: UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

DATE:10-25-79 TYPE: AUGER CASED TO:

79082 SBORING NO.: EPA-8LOCATION: JACKSONVILLE,

GROUND ELEVATION: 288

zxm>-UJo.u-UJQ

0CDS>-1/1

o9-ITt-;-«\QC: MZ|- ?<I iu 01- z -'in !u ffl

a.

%<tC7QCt:LUOQ£LU00:t-?'-^

WATER INFORMATIONLEGEND:13 SAMPLEX STANDARD PENETRATION

Hj ROCK CORE

Borehole dry at completion ofobservatiwell install ati on. Water level at 12.4on 10-26 and at 8.3' on 12-4-79.

D E S C R I P T I O N OF STRATUM

Grass and root VENbLRStiff reddish brown slightly sandy silty CLAY with sandstone*

ML

78/.8

50/.3

Very stiff tan, reddish tan, and brown clayey SILTwith sandstone and shale fragments and lenses

Very hard tan, reddish tan, reddish brown,and gray (ClayeySILT with sandstone and shale fragments (samples hcpueslight chemical odor) .,,

'(MSoft gray and,b1ack SHALE (driller's classification^

50/ 0 0

BORING TERMINATED at 14'

NOTE: Observation well installed to 1 2 . 5 ' on 10-25-79.

fragments

03104208

1

K&c

3

Is

•SC

L

) )

LOG OF BORING NO. IVERTAC CHEMICAL

JACKSONVILLE, ARKANSAS

TYPE: Auger to 1 0 ft - Core LOCATION: See Plate 1

CX*t-0.Id0

• 5

-10

15

-20 '

• 25 •

30-

COMPLETION DEPTH: 30 ft DEPTH TO WATERDATE: (;/-»n/7Q 1N BORING: DATF'-

C;ID•s.w>

"7^—J

'-/

i/

•/

/

•^^~d^~\7^-7—3!r—71

- ——• —- ——— ——•- ——- ——- ——

• ^ "

—. —

~E=- —- ——. —• ——- —iES€. ——- —." • ".. i . ..•[•.';i'.T- -T-

•>uS* DESCRIPTION OF MATERIALz<10

) SURF. EL;

I Very stiff can with someh reddish tan sandy clay\ (FILL) /

Stiff to very stiff tan andreddish tan sandy clay withsome sandstone fragmentsand roots

| Soft light gray and reddish| tan highly weathered clayey| shale

Medium soft reddish tan, tanand light gray with somedark gray weathered shale

-broken with some clayeyseams and sandstone seamsand inclusions -

-mostly dark gray below 16 ft-medium soft to medium hard

and fractured below 20 ft

-approximately 30° dip

Hard gray sandstone --fractured with ferrousstains along fractures and

. some shale seams .

fcKUJ0.(0

§

CO

0:3OU

3

(

0.2 0

PULI

1

K =

59X

K »

31Z

ftSTIC WATERMIT CONTENT.%

0 20 SO 40 90 •

9{-

3.5

PAS

4.4

PAS

V.

COHESION, TON/SQ FT———o———.4 O.C O.B LO 1.

i « • i

X 1

;ING

x 1

SING

+)-'NO.

,-8

NO.

®

im/s

200

-T-:m/s

200

sc.

SIE

•c.

SIE

•

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0:

2 L4'

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0 70

^^

CM

r^00

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10'

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9*

9*

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w.(UsUUJ(C

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100

100

100

100

3

f

.,''-

.)-

TYPE: Auger lo 10 ft - Wash

LOG OF B O R I N G NO.r.ORTH VASTE BURIAL AREA

VERTAC, INC.JACKSONVILLE, ARKANSAS

LOCATION: see Plat e^ I

^ / SURF. EL: 297.1[/» Reddish tan slightly clayey"

and fine sandy silt withiron stains-silty clay below 1-5 ft(POSSIBLE FILL1

Cs0"1-IS

torui0.

DESCRIPTION OF MATERIAL u>

ICD

Stiff reddish tan and lightgray silty clay with ferrousnodules-mottled reddish tan andyellowish tan with grayclay lenses, silt pocketsand ferrous nodules "below ]4.5 ftVery stiff yellowish, reddishtan and light gray blockysilty clay with clayey siltpockets and gray clay lenses-less blocky below 8 ft withmore clayey silt pockets-tan and light gray withblack ferrous stains below

. 13.5 ft-hard gray sandstone layer15 to 15.5 ft

-red clay layer 15.5 to 16 ft

COHESION, TON/SQ FT

1.0 1.20.2 0.4 O.t O.BLIQUIDLIMIT

——+WATERCONTENT. %PLASTIC

L I M I T+- .——0

40 SO 60 7020 3010

SA^ PASSING WO. 200 SIEVE AT~ «• ^ - i0.5 .to 1 FT

S.—i——1———'. w. •——i——o| 44---}- -^-t+

K '• 1.9 x 10CM cn/seat ( to 3.5

84Z PASSING NO. 200 STQ7E AT—• •? 'nn '\ ,1.^ -

H-1-+9-6 cm/sec at to

it7.5 x 10

7.5 6t

d 'snjvJE JT^JPAJSINGJ Nol 207

200

SI1

807. PASSING NO.

78

82

Q

•°\

"co"7.5 -FTSIEVE ATFT

Soft highly weathered tanshale with black stains-dark gray and soft to mediumsoft weathered shale below18.5 ft

in.

50 r 3 in

C O M P L E T I O N DEPTH: 25 f tDATE: 7/11/79

DEPTH TO W-tEP.IN B O R I N G : 7 / 1 S / 7 9

')

TYf

^ -J

" I-» s0

/,

/

/

• ' > • /

/

— /

//

• 1 0 - >

,/

——^

y

15 • /

/,/'

/

/

20 •/^^

//

— —— —

25 •

COMPLETION DEPTH: ^ ^ ^PTH TO WATER • 03104211DATE: 7 / n / 7 0 IN BOF.ING: -,, <, ., 0^: ^^/^

LOG OF BORING NO. 5:;ORTH WASTE BURIAL AREA

VKKTAC, INC.JACKSONVILLE, ARKANSAS

F>E Auger to 10 ft - Wash LOCATION: pgg plate 1

i "» -{' ^ DESCRIPTION OF MATERIAL' S

) SURF. EL: 301.3

^r Very stiff brown fine sandy-- \ silt with roots //• Very stiff reddish tan very/j silty clay with ferrous

- - , nodules/ 'V-more clavey with depth /

)• very stiff mottled reddish; tan and tan very silty clay

^ with ferrous nodules^; -reddish tan with occasional/: fine gravel below 4 ftVM -blocky with light gray

clay lenses and some coarse/ sand and fine gravel belowf 6 ft

' ; -hard below 8.5 ft^ -yellowish tan and light gray

^ with cemented ferrous seams'' below 10 ftt

/ ;

/

/ -stiff, less silty light^ gray and tan below 15 ft

f

r .//

f

/

—^ Soft tan highly weathered. shale with black stains\-dark gray below 23.5 f t /

I:cUJ0.<n?0a

50

^K>-•-K-aOu

533

102

96

- 5

COHESION. TOM/SQ FT

0.2 0'.< O.t 0.< 1.0 1.2 1.4i i i i < i i •

PL^LI

1

»< =

767.

< = 6.0 x 10'7 c

732 PASSTNG N0.« 1

in.

ftSTIC WATERMIT CONTENT.^4.—-———0———0 ZO 30 40 SO C(

0

3.8PASS

Q

'x. iaING

1

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200 F.IE"I/. ^ »•

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•

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COMPLETION DSPTH: 5 . 5 f t DEPTH TO WATER 2.5DATE: 7 / 1 2 / 7 9 IN BORING: SEE NO

LOG OF B O R I N G NO. 6 .I10KTH WASTE BURIAL AREA

VERTAC, INC.JACKSONVILLE, ARKANSAS

TYPE: AuRer LOCATION: <;.. PI, 1

i0GOz>-<a

^ - ? 4/r /

/»<

/

.-<'---—>

- —.

j——"^

wtil

j? DESCRIPTION OF MATERIAL<10 :

/ SURF. EL: 287.6

. Firm brown clayey silt with\ organic matter /

Firm tan and light graysilty clay with ferrous

. nodules^ 80X PASSING NO. 200 SIEVE /\ AT 1.0 to 1.5 FT /- Soft tan- highly'weathered

shale vlth medium soft dark ;1 gray and-tan shale fragments

and light gray clay pockets/1-17Z PASSING NO. 200 SIEVE ,1 AT 4.5 TO 5 FT /

NOTE: Ground waterencountered at a depthof 5 ft - Water levelrose to 2.5 ft after1 hr •

tKUJQ.

U>

1ffi

^>->••-C3Ou>.>-•Z-1

3

COHESION, TON/SQ FT

0.2 0.4 O.C O.B 1.0 1.2 1.41 1 1 1 1 1 1

PL1LI

1

K =

•

C.STIC WA1MIT CONT+————————C0 20 30 4

« 0

- tT®-1.0 x 1C

<a

0 •h-

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..

TERENT.y>———0 5

m/se

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03104212'-•• 7 /12/79

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ua

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LO 'COMPLETION DEPTH' 8 ft - DEPTH T<

D A T E ' 5/29/79 IN TEST

DATE

•«,

Zt-•.lu0

—

- 5

——

10 •

C O M P L E T I O N OEPTH=' 9 ft DEP T M TO0*^' 5/29/79 IN T E S T

e-

-J0•X>•«

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'J0

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/"y? ;

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^•/./,\\>

L O G O F T E S T P I T N O . 1

VERTAC, INC.JACKSONVILLE, ARKANSAS ^y y ^ ^

5/29/79 T^PE. Backhoe LOCATION. Hole f 1

DESCRIPTION OF MATERIAL',

/ SURFACE CL.

Brown silty fine sand with^ organic matter

Tan with some reddish tanfine sandy clay

-mottled tan, reddish tanand light gray with someclayey sand pockets below

: 3 ft-more clayey with increasingdepth

L O G OF T E S T P I T . NO. 2VERTAC, INC.

JACKSONVILLE. ARKANSAS 3 ft W of Test5/29/79 TYPE. Backhoe LOCATION. Hole f 2

' * . • . - . ' • - '-"Ml ' ' " • :- -

-• • • • ' " " • -< • • '

; DESCRIPTION OF MATERIAL<M .

^ SURFACE EL.

Brown fine sandy silt with\ organic matter /

Mottled reddish tan and tanwith some light gray finesandy clay with some clayeysand pockets.

•more sandy with increasingdepth

Mottled light gray, reddish ftan and tan blocky silty

\ c l a y . /

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ASTIC WATER LIOIIMIT CONTENT, % LIM+----- -^---- -- -+

0 2 0 SO 40 SO 60 7

TE:EXCA'(5/2

TERSEE

tSTIC WATER - LIOUMIT CONTENT, % LIN•--------•—— ,---+0 20 30 40 S0» 60 7

FE:;excA\(5/2S

Ef» f. Si

COHESION. TON/SO. F1———o——.4 0.« O.I 1.0 1.

GROUVATI9/79

6.5NOT

COHESION, TON/SO.F———o——4 0.6 0.8 1.0 1 .

GRO/ATI3/79

3 ft:E N

IND ^ON B)

ftE

UNDON B)

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DATE

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COMPLETION DEPTH: 9 ft DEPTH TO WATER 2.5 ft

D A T E ' 5/29/79 IN TEST PIT. SEE NOTE D A T E = 5/30/79

L O G OF. T E S T PIT NO. ^

VERTAC, INC. Ro-o^ n-Ml IR'FJACKSONVILLE, ARKANSAS ^r^T^'S^ci-mi-in - n i l - °t Ditch & 66 N or

DATE: 3/30/79 TTTPE- Backhoe LOCATION: Fence Line

i-&»

zt-A.W0

. 5.

•

10-C O M P L E T I O N DEPTH' 6-5 ft DEPTH TO W A T E R 2 ft 03X04214D A T E ' 5/30/79 IN T E S T PIT. SEE NOTE . OATE5/31/79

•J0•

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•

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/ ./f' ^..t.

-10

X>-•

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L O G O F T E S T P I T NO. 3

VERTAC, INC.JACKSONVILLE, ARKANSAS Midway of Test

5/29/79 T T P E . Backhoe LOCATION: Holes 1 thru 4

—

»! DESCRIPTION OF MATERIALx<•>^ SURFACE EL.

\ Brown fine sandy silt with i;\ organic matter /! ^ ^an and gray silty fine sand ^; Yellowxsh tan fine sandy clay

Light gray with tan andyellowish tan fine sandyclay with silty fine sand and

\ clayey fine sand pockets /Light gray with tan blocky

; silty clay

•> '• '\*• '- ' '-i ' • . • ' '; DESCRIPTION OF MATERIAL< '. -•> " . ' ' • • . . •^ SURFACE EL.

Brown fine sandy silt with\ organic matter /

Tan fine sandy clay

Medium hard to hard reddishtan and tan weathered sand-stone with numerous lightgray and tan clay seamsand layers

\ -broken and fractured /

-

\-&—&«s0J

1-Ik

scin0.•I

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PLL

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0.2 0

PL1LI

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(5/30/79) ' '

ASTIC WATER LIOt1MIT CONTENT, % LIM

0 20 SO 40 50 60 7

FE; G(CAVA

ASTIC WATER LlOUMIT CONTENT, % LIM

0 20 30 40 SO 60 7

FE: GROUND WATER ENTERING;XCAVATION BELOW 3.5 FT; -

OMESION. TON/SO.ft————0————4 0.6 O.I 1.0 1.

;ROU1iTIOl

fOHESION, TON/SQ.F

———o——.4 0.6 0.8 1 .0 1

ND W/S BEI

\TERLOW

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—*-

2 1.4

ON

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C O M P L E T I O N D E P T H . & f t D E P T H TO W A T E R 0.5 f t . UJ

D A T C ! 5/30/79 I N T E S T P I T . SEE NOTE D A T E

E -

-10a2>•—

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-LT-1-

'

-10

2>-•>

^ • ' ' /'-4-..,.'.

l - f - ' - ' i l

L O G O F T E S T P I T NO. 5VERTAC, INC. ^ mn 25.E

S/.n/7Q JACKSONVILLE. ARKANSAS of Ditch & 105'S5/30/79 T I P C . Backhoe L O C A T I O N : o f Fence Line

—w

•• DESCRIPTION OF MATERIAL2<o>/ SURFACE C L .

Tan with reddish tan fine sandy\ clay with sandstone fragments y

Medium hard to soft reddishtan and tan weathered sand-stone with light gray and tanclay seams and.layers

i -broken and fractured and /\ poorly cemented /

tETION DEPTH: 4 ft -

5/30/79

L O G O F T E S T P I T NO. 6VERTAC, INC. - - „,,, /c .p

JACKSONVILLE, ARKANSAS f^\ r I'W <; n5/30/79 T Y P E . Backhoe L O C A T I O N "^fiU lz" s 0

mu-i - • • • : • . .^ DESCRIPTION OF MATERIAL<B)

y1 S U R F A C E E L .

Tan fine sandy clay with sand-^ stone fragments y

Medium hard to soft reddishtan and tan weathered sand-stone with light gray siltyfine sand pockets and seams

. and occasional clay pockets1 -broken and fractured and /\ poorly cemented

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0 20 30 40 50 60 7

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T E R

SE

&STIC WATER * L l O UM I T C O N T E N T , % L I N

0 20 30 40 SJ) 6 0 7

TE: (EXCA^(5/3(

;OHESION, TON/SO. FT———o——.4 0.6 0.» 1.0 1.

SROU1JATU)/79

2.5:E N

COHESION, TON/SQ'.F

———————0——————4 0.6 0.8 1.0 «

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L O G O F T E S T P I T NO. 7VERTAC CHEMICAL

JACKSONVILLE, ARKANSASD A T E - 6/14/79 T X P C ' Backhoe LOCATION- see plate 1

i-h.•

X>>0.u0

, ,„,.

• 5-

•10-

CONPLETION DEPTH: 7.5 ft DEPTH TO W A T E R 6.5 ft (6/15/79)

D A T E ' 6/14/79 IN T E S T PIT.' SEE NOTE DATE '

L O G OF TES"!VERTAC Cl

JACKSONVILLEDATE. 6 /14/79 TYPE ' •Rflfkhof

^h,

Xt-&•ua

•5 -

•10-

C O M P L E T I O N DEPTH. 6.5 ft D E P T H TO W A T E R 3 -5 ft (6/15/^104216D A T E : 6 /14/79 IH T E S T P I T - SEfc ^oifc D A T E :

-10•

z>••

^ - .4

'•'•\•'•//" ^

- —

i0•

X>-

/^k^. .1

. .1 .

••I'.'.j

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mw

•! DESCRIPTION OF MATERIALx4ny' SUHFACE CL. 279.3

n Brown clayey silt with organic(\ matter /J Tan silty clay with some fine| sandJ -tan and light gray sandy clayft with sandstone fragments /dl\ below 1.5 ft /;11 Medium soft tan and reddish /Ja tan sandstone and sandy clay / fW -fractured and broken j \\ Light gray with tan clay f\ wxth shale seams /\ Soft to medium soft light gray/i and reddish tan weathered J\ shale with clay seams '| , -

.DESCRPTION OF MATERIAL

y1 SURFACE EL. 275.4i Brown clayey silt with organic .\ matter /

Tan with some reddish tan sandy\ clay with sandstone fragments]

Soft to medium soft reddishtan with tan and light grayweathered sandstone with lightgray sand seams and pocketsand occasional clay seams

-broken and fractured and\ poorly cemented /

»-h.•W&—»0-1•

r P IT NO. 81EMICAL -, ARKANSAS» • LOCATION: " 'See Plate 1

R.

•CWa.•>0-ia

;£

Mt- •»|5

ft

IstSZ -13

C

0.2 0

PLL

1

»^ —

672

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.

0.2 0

PL*LI

NO']

ASTIC WATER LIOIINIT CONTENT, % LIM+------ -^-------+

0 20 SO 40 SO 60 7

^

PAS;

EE: Ground water enteric:avation at 3.5 ft (perc1 below 7 ft (6/14/79)

ASTIC WATER LIOUMIT CONTENT,% LIN

0 20 30 40 SO C^ 7

re: cei

OMESION. TON/SO. FT———o——.4 0.6 O.B 1 .0 1.

. .

X 11

ING

COHESION, TON/SO, f

——o———.4 0.6 0.8 1.0 1

around wiccavatio

,<NO.

m/s

200

atern be

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L O G O F T E S T P T NO. 9VERTAC CHEMICAL

JACKSONVILLE, ARKANSAS

O A T E . 6/14/79 r - rp r> Eackhoe ,n<-*T inN- See Plate 1i-h,

»X1-A.Wa

^

COMPLETION DEPTH' 2.5 ft DEPTH TO W A T E R 2 ft (6/15/79)

D A T E . 6/14/79 IN TEST PIT. SEE NOTE DATE:

L O G O F T E S T P T NO. ^VERTAC CHEMICAL

JACKSONVILLE, ARKANSAS

DATE. 6/14/79 TTPE. Backhoe LOCATION: See-Plate 1

^u.

z»-

A.w0

5

•

C O M P L E T I O N DEPTH= 5.5 f^ DEPTH TO W A T E > » 3 . 5 f t (6/15/79) 0310421'O X T e : 6 /14 /79 IM ^s'1' P • T • SEE NOTE D A T E :

»0A2>••

7m^1\•r1 - ?

->0

X>•

«

TTF/.

•aS-•T-'-T- ..|.

•>WJA.X4•>

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31 lan and light gray fine sandy ;ay t^ay with sandstone fragments/H Medium soft to medium hard /I tan and light gray weathered 'I sandstone t1 -poorly cemented and massive /

•w

1a.z<n

y^

Tan with some reddish tansandy clay with sandstone

< fragments

\

«

DESCRIPTION OP MATERIAL

SURFACE EL. 267 0Brown clayey silt with organicnatter /

DESCRIPTION OF MATERIAL

SURFACE EL, 278. 2

Brown clayey silt with organicmatter /

Medium soft to medium hardreddish tan and light graysandstone with some clayseams

-broken and fractured /

i-k.ew&•90•I

»-

h.

ida.•a0-i9

^sst- "»

IS

^s:£ 3

tSZ -13

c

0.2 0

PLL

K =

597.

NOTE; Ground water entexcavation below 2 ft(6/14/79)

c

0.2 0

PL<L 1

NO

excat

ASTIC WATER LIOlIMIT CONTENT. To UN4. - - - - - - ^ - - - - -+.

0 20 30 40 50 60 7

e^1.1

PAS!

•

&STIC WATER LIOUNIT CONTENT, % LIM

0 20 30 40 50 60 7

TE: Ccavatappi

- «

;bHESION. TON/SO. F1———o———.4 0.6 0.« 1 .0 1.

X 1

ING

:OHESION, TON/SQ.F

————0—-.——4 0.6 0.8 1 .0 1

3roucionroxi5 /14

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-.

,m/s

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aterow 3ly 0

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L O G O F T E S T P I T NO. 11VERTAC CHEMICAL

JACKSONVILLE, ARKANSAS

D A T E - 6/14/79_______TIPE; Backhoe__________LOCATION: see ^ate 1______~ ~ \ [ ~ 1 ' I *-' I ' - I C O H E S I O N . TON/SO, f T . |

S: -• : ; ———0——— S0 -J . - - >. _ 0.2 0.4 0.6 O.B 1 . 0 I. Z 1 . 4 S

x a •• DESCRIPTION OF MATERIAL & «2——•———•——•——•——'——'——'—— a*- - a « °-s, PLASTIC WATER LIQUID t*a; «» < !t t- •> LIMIT CONTENT, To LIMIT "S " •> S »3 +--- - - - -^--- - - - -4. "t

_ _ _ _ _ _ / SURFACE t L.____ _______* 3 1 0 20 30 *0 50 60 70 r

——^[c / ; Reddish ton with tan silty | j | j j j——^ ; clay with some sandstone——ll^ fragments______________».____________________ y——=.=•:;Soft light gray and t a n _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _——~EE : weathered shale with some—— T^. clay seams

-^r=— -medium soft to medium hard ff^-— 5 -—=^; light gray and reddish tan ———————————————w——~~=-:; with dark gray shale with__- — ' occasional clayey and sand- ____ _:___ _____ "—— \ stone seams / . c\*— - \———— ————— ———— ——————/ ——————————————L©.—— 0

" '\

Io~ __________COMPLETION DEPTH! 6.5 ft DEPTH TO W A T E R

DATE=_________•__________6/14/79___________IN T E S T P I T . P^___________DATE:____________

L O G OF T E S T P I T NO. 12

VERTAC CHEMICALJACKSONVILLE, ARKANSAS . -'

DATE' 6/14/79_______TYPE- Backhoe__________LOCATION: See Plate 1______- I T o » T | (- | >- . 1 ^ C O H E S I O N , TDN/SO.FT. . ( ^ ~ "

^ o1 - : »^ ———o——— 5x 9, ; DESCRIPTION OF MATERIAL S; ^5 °.2 0" 0" 0.8 ••0 ••2 ':4 g*- >. ~ „ 0 . PLASTIC WATER LIQUID S£; t „ . * •-S L IMIT CONTENT,% LIMIT • j0 3 X _I +- -~—---^——--_ --+. ^ |

___ ___ / SURFACE EL .______________________ • 3 1 0 20 30 40 S O 6 0 ^ 7 0/ « 4 / 3 ~ ' - 1 I I j I 1 [

__ .i > Reddish tan with some tan and— — ^ , ^ ; brown silty clay with sand-—— ——_; i stone fragments and some , —— —— —— —— —— —— —— —— —— ——

mr;\ organic mat ter_________/ — — — — — — — — — — — — — — — — —- — ' Medium soft to medium hard

————^E tan an(^ S^y with some dark—— ~^— gray weathered shale __ __ __ __ __ __

5 \ -more dark gray below 4 f t /—— ————— -———— ————— — — — N O T E : - D r y when excavated—— - ' '(6/14/79)

= _ _ _ _ _ _ P 3 J .04: ;18

C O M P L E T I O N DEPTH' ^ ^t D E P T M T O W A T E R ^ ft (6/15/7.9)

t DATE'_____________________^^y^__________IN T E S T P I T . SEE NOTE DATE.___________

L O G O F T E S T P I T NO. 15VERTAC CHEMICAL

JACKSONVILLE, ARKANSASD A T E ' 6/14/79 T Y P E ' Backhoe L O C A T I O N ' See Plate 1

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10 •C O M P L E T I O N DEPTH! 6 ft D E P T H TO W A T E RD A T E - - 6/14/79 IN T E S T P I T . SEE NOTE DATE-.

L O G O F T E S T P I T NO.

D A T E ' T T T P E ' L O C A T I O N !

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C O M P L E T I O N DEPTH. O E P T M TO W t T E R 03104219D A T E ! I N T E S T P I T ' D A T E :

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tGray with tan fine sandy claywith roots

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DESCRIPTION OF MATERIAL

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Tan sllcy fine sand withroots y

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DESCRIPTION OF MATERIAL

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VERTAC, INC.JACKSONVILLE, ARKA>2SAS

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^ DESCRIPTION OF MATERIAL<in

J SURF. EL: 2C)5.2

\ Tan fine sandy siltReddish tan with light gray /

silty clay-mottled reddish tan, lightgray and tan below 3.5 ft

Yellowish tan with lightgray clayey silt -with siltyclay pockets seams andlayers

Medium soft tan and light- gray weathered shale

NOTE: Ground vater enteringexcavation below12.5 ft (6/14/79)

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L O G O.F T E S T P I T NO. 1 7 'NWBA

VERTAC, INC.JACKSONVILLE, ARKANSAS

';YP^ Backhoe LOCATION: see Plate 1

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COMPLET13.S- DCPTH: 0 f t ^PTh 1C, V. - .1£R H-SI nAWID A T E : 6 / 1 ^ / 7 9 It. ? . C K ; N - G : r - .-,. C^IE: . V*"'AU4A<Cl

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5' DESCRIPTION OF MATERIAL<in

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Reddish tan with light graysilty clay

Soft to medium soft tan andlight gray shale with

^ black ferrous stains /

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NOTE: Ground water enteringexcavation below 8 ft .(6/1A/79)

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