Nuance Communications, Inc. 1 Summary of Chemical Analyses Results for Soil Samples Collected in Area of Underground Storage Tank Farm at TADCO, 363 West 133rd Street,

ATTACHEMENT 2 (CHEMICAL ANALYSES RESULTS SUMMARIZED)

Bp640

TA

BL

E

1

Sum

mar

y of

Che

mic

al A

naly

ses

Res

ults

fo

r So

il Sa

mpl

es

Col

lect

ed i

n A

rea

of U

nder

grou

nd S

tora

ge T

ank

Farm

at T

AD

CO

, 36

3 W

est

133r

d St

reet

, L

os A

ngel

es,

CA

Sam

ple

1D

Sam

ple

Dep

th

Ace

tone

B

enze

ne

Car

bon

Dis

ulfi

de

E.

Ben

zene

82

40

2- H

exan

one

Vin

yl A

ceta

te

Tol

uene

X

ylen

es

SS

ND

N

D

ND

N

D

ND

N

D

ND

N

D

NW

4

70

ND

N

D

ND

N

D

ND

N

D

ND

T1E

13

38

0 N

D

7.1

ND

N

D

ND

N

D

ND

T1W

13

22

0 9.

6 N

D

ND

N

D

ND

N

D.

ND

T

2E

13

7,67

0 14

N

D

ND

55

7:

3 N

D

: N

D

T2W

13

20

0 N

D

ND

N

D

ND

N

D

ND

N

D

T3E

13

1,

030

ND

6.

8 N

D

ND

N

D

ND

N

D

T3W

13

3,

400

ND

22

16

N

D

13

10

58

All

valu

es r

epor

ted

in p

arts

per

mill

ion

(ppm

) or

mill

igra

ms

per

kilo

gram

(m

g/kg

) N

D =

Not

Det

ecte

d (b

elow

det

ectio

n lim

its)

NA

= N

ot A

naly

zed

ATTACHEMENT 3 (CAL -EPA CERTIFIED LABORATORY RESULTS AND CHAIN -OF- CUSTODY)

B0642

Advanced Technology

Laboratories

July 11, 1996 ELAP No,: 1838

Aqua Science Engineers, Inc. 17895 Sky Park Circle, Suite E Irvine, CA 92714

ATTN: Mr. Scott Rowlands

Client's Project #: TADCO -363 W. 133rd, 2992 Lab No.: 12033-001/008

Gentlemen:

Enclosed are the results for sample(s) received by Advanced Technology Laboratories on and tested for the parameters indicated in the enclosed chain of custody.

Thank you for the opportunity to service the needs of your company. Please feel free to call me at (310) 989 - 4045 if I can be of further assistance to your company.

Sincerely,

Edgar P. Caballero Laboratory Director EPC\ms

Enclosures

This cover letter is an integral part of this analytical report.

This report pertains only to the reap s investigated and doer not waste/Ay apply to Othe( apparently Wankel or eaglet motorists. This moat ír rtoitted for the exclusive use of the client to whom it it addressed Any reproduction of this report or usa of this Lehorator(s name for edvertíslag or publicity purposes without authorisation Ir prohibited

130643

Mailing Address: P.O. Box 9108 Newport Beach, CA 92658 1510 E. 33rd Street Signal Hill, CA 90807 Tel: 310 989 -4045 Fax: 310 989 -4040

Client: Aqua Science Engineers, Inc. Attn: Mr. Scott Rowlands

Client's Protect: TADCO -363 W. 133rd, 2992 Date Received: 07/03/96 Matrix Soil

Units: ug/kg

E.rA ;lvrRïnöä_siá0

Lab No.: Method Blank 12033-001 12033-002 12033-003 12033-004 12033-005 12033-006 12033-007

Client Sample LD.: - SS 1 T1E-13' NW-4' T1W-13' T2E-13' TZW-13' T3E-13'

Date Sampled: - 07/02/96 07/02/96 07/02/96 07/02/96 07/02/96 07/02/96 07/02/96

QC Batch #: 96VOCS2154 96VOCS2154 96VOCS2154 96VOCS2154 96VOCS2154 96VOCS2154 96VOCS2154 96VOCS2154

Date Analyzed: 07/09/96 07/09/96 07/09/96 07/09/96 07/09/96 07/09/96 07/09/96 07/09/96

Analyst Initials: RR RR RR RR RR RR RR RR

Dilution Factor. 1 1 1 1 1 1 1 1

ÄIdAT X:1'E: Mpi 5

1)I;.Iï: 5

:R001Es. ND

:MR: 5

IisSÙiq.

ND

Il#at,: 5

lttaults' ND

MR: 5

I2itiuita

ND

:DUR

5

120u10::

ND

Düll 5

ÍtP:xttlts

ND DI:R

5

iebtilis :0DLtt2;

ND 5

::>Resils:

ND Chloromelhane Vinyl Chloride 5 5 ND 5 ND 5 ND S ND 5 ND 5 ND 5 ND 5 ND

Bromomethane 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Chloroethane 5 5 ND 5 ND S ND 5 ND 5 ND 5 ND 5 ND 5 ND

Trìchlorolluoromethane 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Acetone, 50 50 ND 50 ND 50 380 .. 50 70 50 220 2500 7670 50 200 250 1030'

1,1-Dichttiroelhene 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND ND

CarbonDlsulllde 5 5 ND 5 ND 5 7.1 5 ND 5 ND 5 ND 5 ND 5 6.8

Methylene Chloride 5 5 ND, 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 NI)

trans-1,2-Dichloroethene 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 NI) 5 ND 5 ND

1,1-Dichloroethane 5 5 ND 5 ND 5 ND 5 NI) 5 ND 5 NI) 5 ND 5 ND

Chloroform 5 5 ND 5 ND 5 NI) 5 NI) 5 ND 5 ND 5 ND 5 ND

1,2-Dichloroethane 5 5 ND 5 ND 5 ND 5 Np 5 ND, 5 NI) 5 ND 5 ND

Vinyl Acetate 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 7.3 5 ND 5 NI)

2-Butanone 50 50 ND 50 ND 50 ND 50 ND 50 NI) 50 50 50 ND 50 ND

1,1,1-Trlchloroethane 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Carbon Tetrachloride 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Benzene 5 5 ND 5 ND 5 ND 5 ND 5 9.6 5 ND, 5 14 5 ND

1,2 Dichloropropane 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 Np

Trichloroethene 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Bromodichloromethane S 5 ND, 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 NI)

2-Chloroethyl Vinyl Ethe 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND S ND 5 ND

cis-1,3-Dichloropropene 5 5 ND 5 ND 5 NI) 5 ND 5 ND 5 ND 5 ND 5 ND

trans-1,3-Dichloropropen 5 5 ND 5 Ni 5 ND 5 ND 5 ND 5 ND 5 ND 5 NI)

1,1,2-Trlchloroethane 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND, 5 NI)

Dibromochloramethane 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Bromoform 5 S ND 5 ND 5 ND 5 ND 5 ND 5 NI) 5 ND 5 ND

4-Methyl-2-Pentanone 50 50 ND, 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND

Toluene 5 S ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

2-Hexanone 50 50 ND 50 ND 50 ND 50 ND 50 ND 50 55 50 ND 50 ND

Tetrachloroethene 5 S ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Chlorohenzene S S ND S ND 5 ND 5 ND 5 NI) 5 ND 5 ND 5 ND

Ethylbenzene 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Xylene (Total) 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Styrene 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 NI) 5 ND 5 ND

1,1,2,2Tetrachloroethane 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

1,3-Dichlorobenzene 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

1,4-Dichlorobenzene 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

1 -Dichlorobenzene 5 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND 5 ND

Propylene Oxide 50 50 ND 50

.. .. .. Additional-8240 AillilyteS. : ..

ND 50 NA 50 NA 50 NA, 2500 50 NA 50 NA

MDL = Method Detection Limit ND = Not Detected (Be ow DLR). DLR = MDL X Dilution Factor NA = Not Analyzed

= Dilution Factor is 50. " = Dilution Factor Is 5.

Reviewed/Approved By: Yun Pan Department Supervisor

The cover letter Is an integral put of this analytical report.

ÀrKdvanced Technology

Laboratories

7/19 Date:

B0644

1510 E. 33rd Street Signal Hill, CA 90807 Tel: 310 989 -4045 Fax: 310 989 -4040

Client; Aqua Science Engineers, Inc. Attn: Mr. Scott Rowlands

Client's Project: TADCO-363 W. 133rd, 2992 Date Received: 07/03/96 Matrix: Soll Units: ug/kg

ELMethód #240

Lab No.: 12033-008

Client Sample LA.: T3W-13'

Date Sampled: 07/02/96

QC Batch #: 96VOCS2154

Date Analyzed: 07/09/96

Analyst Initials: RR Dilution Factor: 1

ANALYTE WI,. DLR ItNults Chloromethane 5 5 ND

Vinyl Chloride 5 5 ND

Bromomethane 5 5 ND

Chloroethane 5 5 ND

Trichlorofluorom ethan e 5 5 ND

Acetone 50 1250 3400*

1,1-Dichloroethene 5 5 ND

Carbon Disulfide 5 5 22

Methylene Chloride S 5 ND

trans-1,2-Dichloroethene 5 5 ND

1,1-Dichloroethane 5 5 ND

Chloroform 5 5 ND

1,2-Dichloroethane 5 5 ND

Vinyl Acetate 5 5 13

2-Butanone 50 50 ND

1,1,1-Trichloroethane 5 5 ND

Carbon Tetrachloride 5 5 ND

Benzene 5 5 ND

1,2-Dichloropropane 5 5 ND

Trichloroethene 5 5 ND

Bromodichloromethane 5 5 ND

2-Chloroethyl Vinyl Ether 5 5 ND

cis-1,3-Dichloropropene 5 5 ND

trans-1,3-Dichloropropene 5 5 ND

1,1,2-Trichloroethane 5 5 ND

Dibromochlorometha ne 5 5 ND

Bromoform 5 5 ND

4-Methyl-2-Pentanone 50 50 ND

Toluene 5 5 10

2-Hexanone 50 50 ND

Tetrachloroethene 5 5 ND

Chlorobenzene 5 5 ND

Ethylbenzene 5 5 16

Xylene (Total) 5 5 58

Styrene 5 5 ND

1,1,2,2-Tetrachloroethane 5 5 ND

1,3-Dichlorobenzene 5 5 ND



Propylene Oxide 50 1250 ND

. .. ..

. AtilrlltiO*41:::824.1):Mirljrtetc.

MDL = Method Detection Limit ND = Not Detected (Below DLR). DLR = MDL X Dilution Factor NA = Not Analyzed

= Dilution Factor is 25.

Reviewed/Approved By: Yun Pan Department Supervisor

The cover later is an integral put of this inelytical report

L /PP-Advanced Technology

Laboratories

Date:

B0645

1510 E. 33rd Street Signal Hill, CA 90807 Tel: 310 989-4045 Fax: 310 989-4040

Clie

nt:

Aqu

a S

cien

ce E

ngin

eers

, In

c.

Attn

: M

r. S

cott

Row

land

s

Clie

nt's

Pro

ject

:

Dat

e R

ecei

ved:

M

atrix

: U

nit:

TA

DC

O-3

63 W

. 13

3rd,

299

2

07/0

3196

S

oil

mg/

kg

ME

TH

OD

. 80

1 5M

::

Lab

No.

: M

etho

d B

lank

Clie

nt S

ampl

e I.D

.:

Dat

e S

ampl

ed:

QC

Bat

ch #

: D

ate

Ext

ract

ed:

9680

15A

SO

48

07/1

0/96

Dat

e A

naly

zed:

A

naly

st in

itial

s:

Dilu

tion

Fac

tor:

07/1

0/96

H

Z 1

Ana

l'';

Eth

ylen

e D

iam

ine

MlX

50

ALR

50

!Rës

ults

?:

ND

1203

3 -0

01

1203

3 -0

02

SS

1

T1

E-1

3'

07/0

2/96

07

/02/

96

9680

15A

SO

48

9680

15A

SO

48

07/1

0/96

07

/10/

96

07/1

0/96

07

/10/

96

HZ

H

Z

1 1

!Rsu

lts<

: 50

N

D

50

ND

MD

L =

Met

hod

Det

ectio

n L

imit

ND

-

Not

Det

ecte

d. (

Bel

ow D

LR

) D

LR

s M

DL

X D

ilatio

n Fa

ctor

N

A

= N

ot A

naly

zed

Rev

iew

ed /A

ppro

ved

By:

Y

un P

an

Dep

artm

ent S

uper

viso

r

The

cov

er le

tter

is a

n in

tegr

al p

art o

f thi

s an

alyt

ical

rep

ort.

B06

46

Dat

e:

`®dv

ance

d T

echn

olog

y

- i .

11,.,

ra,.,

rcoe

Spike Recovery and RPD Summary Report SOIL (MG /KG).

Method : C: \HPCHEM \5 \METHODS \DIAMINE.M Title Last Update : Wed Jul 10 17:02:49 1996 Response via : Initial Calibration

Non - Spiked Sample: D7776.D

Spike Sample

Spike Duplicate Sample

File ID : DS7778.D .Sample : 12033-1 MSD SOIL E7-10-96 Acq Time: 10 Jul 96 05:46 PM

DS7777.D 12033 --1 MS SOIL E7 -10 -96 10 Jul 96 05:37 PM

Compound Sample Spike Spike Dup Spike Dup RPD QC Limits

Conc Added Res Res 9b-Rec %Rec RPD Rec

Ethylenediamine I 0.0 1 200 1 152 1 123 1 76 1 62 1 21 1 50 1 50-1501

QC Batch #: 968015ASO48

Reviewed /Approved By:_

Apra Technology

Laboratories

Yun Pan Organics Supervisor

Date: 7//-2/725

B0647


Spike Recovery and RPD Summary

Method : C: \HPCHEM \1 \METHODS \VOC35.M Title : Volatile Organic Compounds Last Update : Tue Jul 09 11:27:02 1996 Response via : Continuing Calibration

Non - Spiked Sample: V8214.D

Spike Sample

Report - SOIL (ug /kg)

Spike Duplicate Sample

File ID :

Sample .

Acq Time:

VS8215.D 12033 -003 50 ppb MS VOC SOIL 9 Jul 96 3:37 pm

VS8216.D 12033 -003 50 ppb MSD VOC SOIL 9 Jul 96 4:11 pm

Compound Sample Spike Spike Dup Spike Conc Added Res Res %Rec

Dup RPD QC Limits %Rec RPD % Rec

1, 1- dichloroethene benzene trichloroethene toluene chlorobenzene

0.0 50 61 60 123 119 3 23 37 -166

ND 50 54 52 108 103 5 21 68 -133

ND 50 51 49 103 97 6 23 65 -129

ND 50 52 50 104 99 5 21 74 -136

ND 50 52 49 104 97 7 19 83 -122

QC batch #: 96VOCS2154

Reviewed and Approved by:

Ad IF dvanced Technology

Laboratories

Yun Pan Organics Supervisor

Date: 7//`l/ %

B0048


CH

AIN

OF

CU

ST

OD

Y R

EC

OR

D

Pp .L

of

y-

`dva

nced

Techn

olog

y F

OR

LA

BO

RA

TO

RY

US

E O

NLY

:

Bat

ch #

: D

.O.#

Met

hod

of T

rans

. rt

Wal

k-in

'-'

1

Cou

rier

UP

S

FE

D.

EX

P.

AT

L

Sam

ple

Con

ditio

n U

pon

Rec

eipt

1. C

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LER

TE

MP

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(2 -6

) 5.

SE

ALE

D

Y

NC

I L

abor

ator

ies

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nal H

ill, C

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(310

) 98

9 -4

045

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AX

(31

0) 9

89 -4

040

pup.

#:

2. C

HIL

LED

Y

N

- 6. #

OF

SP

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AT

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Dat

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Tim

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60

days

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TL

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vern

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<

24

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B=

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mer

genc

y N

ext

wor

kday

C

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ical

2

Wor

kday

s D

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rgen

t 3

Wor

kday

s E

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outin

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kday

s

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rts

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llow

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day

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es

rece

ived

aft

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pm

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Pre

serv

ativ

es:

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N

=H

NO

3 S

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2SO

4 C

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°C

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Zn(

AC

)2

O =

NaO

H

T=

Na2

S20

3 R

etur

n T

o:

Con

tain

er T

ypes

: T

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ube

V =

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A

L =

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int

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lar

s G

= G

lass

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last

ic '

M =

Met

al

ATTACHEMENT 4 (PHOTOGRAPHIC DOCUMENTATION OF TANK REMOVAL)

B0650

PHOTOGRAPHIC PLATE I

Showing Unearthed Underground Tanks In-Place

oe;

44. .t.110.1tt

.41

t t

Stash

40k,

At*

0111

A

7

01.6!

*.

de.

B0651

Aqua Science Engineers, Inc,

PHOTOGRAPHIC PLATE II

Showing De- Gassing Phase of Tank Removal Process

.,. ;-.,fii

Note Volatilization of Ethylene Diamene from Northernmost Tank

B06S2

Aqua Science Engineers, Inc.

PHOTOGRAPHIC PLATE III

Showing Final Tank Check for Remnant Vapors Prior to Removal

NM,

.

4 )41t..,,

. s tr:r -49

1. te, ofq.

--AW , *if .. "

* ,

refi. . 44;

Mat

k

e

ôrb

B0653

Note Cut "Windows" in Each Tank for Visual Inspection


PHOTOGRAPHIC PLATE IV Showing Tank Removal

d

t4 j 1.. )r ,a?*

n s

A

80664


PHOTOGRAPHIC PLATE V Showing Excavated Tank Pit


PHOTOGRAPHIC PLATE VI

Showing Split- Sample Collection for Sample Ti E

B0656

Note Apparent Gray Staining of Soil Indicating Contamination


EHIBIT 7

_41-VrAkw.

June 5, 1998

Ms. Wendy Liu Regional Water Quality Control Board Los Angeles Region (4) Site Cleanup Unit 101 Centre Plaza Drive Monterey Park, CA 91754-2156

RE: Summary Report of Environmental Site Assessment Data

SITES: Former T.A. Davies, Inc. (TADCO) 363 West I 33rd Street Los Angeles. California

Standard Metals Recycling Corporation 378 West 1 33rd Street Los Angeles. California

Dear Ms. Liu:

tT'. a, Tr..

The owner of the property located at 363 West 133rd Street, Los Angeles, has requested that

Aqua Science Engineers. Inc., (ASE) submit a summary report of findings of environmental site

assessments conducted by ASE to date at the above referenced properties. The information is

being submitted to you so that the Regional Water Quality Control Board may evaluate the

significance of the contamination discovered by the assessments and determine an appropriate

course of action.

Volatile organic compounds (VOCs) and other organic contaminants have been detected in soil

and groundwater at both sites. Groundwater is located between 40 and 45 feet below the `round surface. Soil and groundwater contamination assessments have been conducted by Frey

Environmental, Inc.. on behalf of the owners of the Standard Metals property. The investigations

included the installation of four groundwater monitoring wells. One well was installed on the

Standard Metals site. two wells were installed on West I33rd Street. and one well was installed

on the former TADCO site. The investigations conducted by Frey also included a soil gas survey

conducted at the former TADCO site and apparently at the Standard metals site. Reports

regarding the results of the soil or groundwater investigations conducted by Frey Environmental

for Standard Metals have not been macle available b), Standard Metals,

Information contained in this Sulnnlary was collected from the, f011owing reports prepared Hy

Aqua Science Engineers. Inc:

September I, 1995, Soil Contamination Assessment Report for B.I.G./TADCO Site, 363

West 133rd Street. Los Angeles CA.

1006. )ll...,i,l-Fi/_ FI,l';r,l!,lil.'llt.ii Ìm y,`.It(il)I, 'll r)11 il i 3715 \Iith

,nTeles. CA.

,IIIIiC L. !`JiJí), 1:11111(Illllll')Ilill llll l:till_ilfll111 (II J11i1 ill 3i),' VY L,t 1_ JÌU .JiICCì. i,t/;+

Angeles, CA.

July 31 1996, Environmental Assessment of Soil Surrounding the Removed Underground

Chemical Storage Tanks at the Former TADCO Facility. 363 West I33rd Sheet, Los

Angeles, CA.

November 6, 1996. Demolition or the Septic System at the Former TADCO Site, 363 West

I 33rd Street, Los Angeles, CA.

May 14, 1 997, Subsurface Environmental investigation of Soil at 363 West I 33rd Street, Los

Angeles. CA.

September 19. 1997, Subsurface Environmental Investigation of Soil at Standard Metals. 378

West 133rd Street. Los Angeles, CA.

January 1998, Summary Tables of Chemical Analysis Data for Soil and Groundwater

Samples Collected from Well MW -4 and Soil Borings FB-1 and FB -2 Installed by Frey

Environmental for Standard Metals at 363 West I 33rd Street. Los Angles. CA.

May S. 1998, Groundwater Elevation Survey and Sample Analysis at 363 and 378 West

I 33rd Street. Los Angles CA.

Report Summary Data

Multiple subsurface environnlental investigations have been conducted by ASE in relation to

contamination discovered at the TADCO site. A relatively wide variety of chemical

contaminants were discovered in soil beneath the TADCO site and the Standard Metals site by

these investigations including petroleum hydrocarbons. volatile orgaulic compounds (halogenated

and non- halogenated). and PCBs. Subsurface environmental investigations have also been

conducted by Frey Environmental on behalf of Standard Metals. The "Attachments" outlined

below are site maps showing the locations of soil borings and wells installed for the

investigations raid tables summarizing chemical analysis data collected by Aqua Science

Engineers. Inc. Reports documenting the investigations conducted on the behalf of Standard

Metals have not been Harle available and tire not included in the summary data.

Attachment 1

Attachment 1 is a site map showing the locations of soil borings drilled by Environmental

Resolutions. ASE and Frey Environmental. The site map incorporates soil boring location

information for reports prepared by ASE up to January 1988. All structures shown on the map

for the former TADCO site have been removed. The site is now paved with concrete and has

been incorporated into the parking area for the building located east of the former TADCO site.

Borings B -I through B- I 2 at the TADCO site were drilled by Environmental Resolutions Inc..

for TADCO.

Borings B -I3 through B -29, and HA -1 through HA -9. at the TADCO site were drilled by ASE

for Business Industrial Group.

Borings FB-1 and FB -2 at the TADCO site were drilled by Frey Environmental for Standard

vlc .us.

Boring B -i thorough B-5A at the Standard Metals site were drilled by ASE for Business Industrial Group.

Groundwater monitoring wells MW -1 through MW-4 were installed by Frey Environmental

for Standard Metals.

Attachment 2

Attachment 2 provides summary tables of chemical analysis data for the soil borings Identified in

Attachment l as follows:

Tables I and 2: Summary of volatile organic compounds (EPA 8240 and 8260) chemical

analysis data for soil samples collected from borings B- 13 through B -29 drilled by ASE at the

former Tadco site

Table 3: Summary of TPH- gasoline. TRPH and EPA 8260 chemical analysis data for soil

borines B- I through B -5A drilled by ASE at the Standard Metals site.

Table 4: Summary of EPA method $240. TPH -diesel. TRPH and EPA 8270 chemical analysis

data for hand auger borings HA- I through HA -9 drilled by ASE in the area of the former above -

tlreund tank farm at the TADCO site

Table 5: Summary of TPH -gasoline (EPA 80I5tM) and PCB (EPA 8080) chemical analysis data

for soil samples collected from borings B -14 and B-15 drilled by ASE at the former TADCO

site.

Table 6: Summary of EPA 8260 chemical analysis data for split soil samples collected from

borings FB-1, FB -2 and MW-4 drilled by Frey Environmental at the former TADCO site.

Attacirnient 3

Attach nient 3 provides a site plan showing the locations of grab soil samples collected by ASE

during the removal of underground chemical storage hulks on July 2. 1996 at the torrner TADCO

site. and a summary table of EPA 8240 chemical analysis data for the soil samples. The USTs

were removed by Smith Environmental under a contract with TADCO.

Attachment 4

Attachment 4 provides a site plan showing the locations of grab soil samples collected by ASE

during the removal of a septic tank on September 27. 1997 at the former TADCO site. and a

summary table of EPA 8260 chemical analysis data for the soil samples and liquid /sludge

samples collected from the septic tank.

Attachment .5

Attachment 5 provides site maps showing the groundwater elevation and Ilo\r characteristic.,.

determined by ASE during April I99ti. und selected VOC chemical analysis data for

groundwater samples collected by ASE. from well Is N1bV- I through i\4Vc / -4.

Attachment 6

Attachment 6 is a summary table and Cal -EPA certified laboratory report of EPA 8260 and 8015

chemical analysis data for groundwater samples collected from wells MW-1 through MW -4 by

ASE on April 28. 1998.

Complete reports documenting the assessments .summarized in this letter are on -file at ASE's

Irvine, California office. Please contact Mr. Patrick Rendon, Esq., of Calvillo and Rendon at

(562) 983 -6624 if you have any questions regarding this letter. or if you require copies of any of

the reports listed above.

Sincerely.


Michael Marello, R.G.. R.E.A. Vice President Principal Geologist

cc: Mr. Patrick Rendon, Esq. Mr. Jess Herbst. Business Industrial Group

Attachment 1

Site map showing the locations of soil borings drilled by Environmental Resolutions, ASE and

Frey Environmental.


ÇhWOIs

Sal bon dneed aY ASE

W Sod oo,Ng dnaed W omen re- deagenAHs Oda rig paringe -HA- designelak nand -auger honngs LoceVon, ere eppmaknate

Groundwater monitoring pell 'maenad by Frey Environmental

-. Soil Dodug ddaad by Frey Environmental

® BVMnq or ghM ehutture

//7//////l/////////////mff !//////IA

B19 a

9 Driveway and Parking Area Per 17755 South Bmadrrey

O B I 7

1320 B WEST 13300 STREET

Driveway

ASPHALT PAVING

Fire Hydrant

HA -7 FL. I.-1 HA.5 B IS. ,

B26 Eastman TAI: y B yU-7 &

- B27Q HA-3 - 1 s ---ß ^---` 'Ì

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B6 B7

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B2i

Appres. Alfa 85® of tlnderyround

Septic Tank (Removed)

B13 9

®BA Bta

9

B3

FORMER TADCOSRE 367 WEST MAD STy EET (MI Structures Removed)

BO

®

B9 ® Drrveway

Oteael RAI .2 B25

O

Approalm ale

B2s Properly Line

Polymaric MDI B

B12 B11

® B23 ® Bls 0 B

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BripWner Pil

Filled *eh Gravel

B 19 BOA

Deteriorated Conner. Paving

9 B3

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U INDUSTRIAL SERVICE

STANDARD METALS

378 W MAD Sy

Metal Scrap Peeyclarl

Attachment 2

Tables 1 and 2: Summary of volatile organic compounds (EPA 8240 and 8260) chemical

analysis data for soil samples collected from borings B -13 through B -29 drilled by ASE at the

former Tadco site

Table 3: Summary of TPH- gasoline. TRPH and EPA 8260 chemical analysis data for soil

borings B-1 through B -5A dril led by ASE at the Standard Metals site,

Table 4: Summary of EPA method 8240, TPH -diesel. TRPH and EPA 8270 chemical analysis

data for hand auger borings HA -1 through HA -9 drilled by ASE in the area of the former above -

around tank farm at the TADCO site

Table 5: Summary of TPH -gasoline (EPA 8015M) and PCB (EPA 8080) chemical analysis data

for soil samples collected from borings B -14 and B -15 drilled by ASE at the former TADCO

site.

Tabie 6: Summary of EPA 8260 chemical analysis data for split soil samples collected from

borines FB -1. FB -2 and MW -4 drilled by Frey Environmental at the former TADCO site.


TABLE I Summary of Chemical Analysis Data for Soil Samples Collected from Borings B -I3 through B -27 for EPA 8240 Compour

Borings B -13 through B -I6 and B -22 through B -27 Drilled at Tadco, 363 West I33rd St., Los Angeles County

Boring B -21 Drilled on the South Edge of I 33rd Street, Adjacent to General Welding Site

Borings B -17 through B -20 Drilled at 13255 South Broadway, Los Angeles County

Boring Nimber

Sample Collection Denth (ft)

Acetone (itg/kg)

Carbon Disulfide (I1P11(e)

Vinyl Chloride (µg/kI:L

Methylene Chloride (11g/kg)

Trans-1,2 DOE

(uyke) 1,I-DCA (ug/kg)

2-Butanonc lag/kg)

Benzene (l(g/kgl

TCE (u¢/kg)

4-Methyl- 2-Pentanone

()lg/kg) Toluene (uglkg)

Ethyl- Benzene

(Ug/kg)

Total Xylencs (ug/kg)

Cl

13-13 l0 400 ND ND ND ND ND ND ND ND ND ND ND ND

20 ND ND ND ND ND ND ND ND ND ND ND ND ND


40 ND ND 70 ND ND ND ND ND 48 ND ND ND ND

B-14 51 640 ND ND ND ND ND ND ND ND ND ND 1,100 4,200

15 75,000 ND ND ND ND ND 260 ND ND 56 ND ND ND

25 11,700 ND ND ND ND ND 57 ND ND ND ND ND ND

35 104,000 8 ND ND ND ND 180 ND ND 78 10 ND ND

45 1,300 6 30 ND ND ND ND ND ND ND 18 ND ND

B-15 IO ND ND ND ND ND ND ND ND ND ND ND ND ND

30 92 ND ND ND ND ND ND ND ND ND ND ND ND

35 28,700 ND ND ND ND ND 83 ND ND ND ND ND ND

40 ì,270,000 ND 45 ND 6 ND 700 ND ND 200 49 7 34

45 732,000 ND 320 31 46 18 ND ND 7.6 150 490 34 330

B-16 15 1,600 ND 16 ND ND ND ND ND ND ND ND ND ND



35 ND ND 71 ND 27 ND ND ND 190 ND ND ND ND

13-17 10 150 ND ND ND ND ND ND ND ND ND 98 ND ND

.101 ND ND ND ND 290 ND ND 280 270 ND 430 900 1,050

301 ND ND ND ND 1,400 ND ND ND ND ND 160 360 ND

401 ND ND ND ND 310 ND ND ND 4,400 ND 97 160 ND

B-18 12 ND ND 14 ND ND ND ND ND 15 ND 23 ND ND

20 ND ND ND ND ND ND ND ND ND ND 20 ND ND


40 ND ND 19 ND ND ND ND ND 9.8 ND 63 ND ND

B-19 10 ND ND ND ND ND ND ND ND ND ND 32 ND ND



40 ND ND ND ND ND ND ND ND 24 ND 43 ND ND

Method Detection 50 5 5 5 5 5 50 5 5 50 5 5 5

Level (MDLI EPA Region IX PRG 8.4 x 106 52.000 I I 25,000 600,000 3.0 x 106 3.4 x 107 3,200 17,000 NA 2.8 x 106 690,000 990.000

Indusrrial Preçrty (ca) (nc) (cal (cal (ne) (nc) (ne) (ca) (cal (sat) (sat) (satl

1 Dilution Factor (DF) for sample is IO. Reporting Limit for sample is DF x Method Detection Level

TABLE I CONTINUED Summary of Chemical Analysis Data for Soil Samples Collected from Borings B -I3 through B -27 for EPA 8240 Compour

Borings B -13 through B -16 and B -22 through B -27 Drilled at Tadco. 363 West 133rd St., Los Angeles County

Boring B -21 Drilled on the South Side of 133rd Street. Adjacent to General Welding Site


Boring Nombcr

B-20

B-2I

B-22

8-23

B-24

Sample Collection Depth (RI

IO 20 30 40

IO 20 30 40

451

5

IO 20 30

401

451

51

101

202

302 40

451

5

103 20 30 40 45

Acetone - l.

Carbon Disulfide

. 1.

Vinyl Chloride

i

Methylene Chloride

Trans-1,2 DCE

A

1,I-DCA 2-Butanone i .

Benzene TCE 4-Methyl-

2-Pentanone Toluene Ethyl-

Benzene Total

Xylenes Cl

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND ND

ND ND

262,000 64,200

ND 7,350

ND ND ND ND ND ND

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND 20

ND ND ND ND ND

ND ND ND ND 87

280

ND ND ND ND

29

550

ND ND ND ND ND 6.3

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND

ND ND ND ND ND

ND ND ND ND 56

ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND

2,200

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND ND ND ND

ND ND ND 330

ND ND ND ND 930

ND ND ND ND 330 ND

ND ND

1,000

ND ND ND

16

300 ND 5.6 7.9 65

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND 600.

ND ND ND ND ND ND

ND ND ND ND ND ND

16 22 24

31

ND ND ND ND ND

ND ND ND ND ND 680

190 8,400

22,000 840

30 820

11

ND

ND ND ND

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND 67

23,000 8,300

17,000 1,290

9.9

440

ND ND ND ND ND ND

ND ND ND ND

ND ND ND ND ND

ND ND ND ND ND 400

115,000 55,900

119,000 9,460

24

2,670

ND ND ND ND ND ND

Method Detection Level

50 5 5 5 5 5 50 5 5 50 5 5 5

EPA Region IX PRG

Industrial Property 8.4 x t06

(cal 52,000

(nel I I

(cal 25,000

(cal 600,000

(ne) 3.0 x 106

(nd 3.4 x 107

(ncl 3,200

(cal 17,000

(cal NA 2.8 x 106

(sal) 690.000

(sall 990.000

(satl

1 Dilution Factor (DF) for sample is IO. Reporting Limit for sample is DF x Method Detection Level 2 Dilution Factor for sample is 100. 3 Dilution Factor for sample is 5

TABLE I CONTINUED Summary of Chemical Analysis Data for Soil Samples Collected from Borings B -I3 through B -27 for EPA 8240 Compoi

Borings B- I3 through B -I6 and B -22 through B -27 Drilled at Tadco, 363 West I 33rd St., Los Angeles County

Boring B -2I Drilled on the South Edge of I 33rd Street, Adjacent to General Welding Sim


Boring Number

Sample Collection

(Ill Acetone (ug/k¢L

Carbon Disulfide fug/kg)

Vinyl Chloride (ug/k2)

Methylene Chloride fug/kg)

Trans-1,2 DCE

(ug/ke1 I.1-DCA (lilt/kg)

2-Butanone (µg/kg)

Benzene (ttg/ktt)

TCE fug/kg)

4-Methyl- 2-Pentanone

(ug/kg) Toluene lug/kg)

Ethyl- Benzene (u¢Btt%1

Total Xylenes ( IR

B-25

_Depth


IO 73 ND ND ND 13 ND ND ND ND ND ND ND ND

20 57 ND ND ND ND ND ND ND ND ND ND ND ND



45 ND ND ND ND ND ND ND ND 8.0 ND ND ND ND

B-26 5 160 6.7 ND ND ND NT) ND ND ND ND ND ND ND

IO ND ND ND ND ND ND ND ND ND ND ND ND ND

201 ND ND ND ND ND ND ND ND ND ND 70 280 2890

30 ND ND ND ND ND NI) ND ND ND ND ND ND ND


45 ND ND ND ND ND ND ND ND 57 ND ND ND ND

B-27 5 ND ND ND ND ND ND ND ND ND ND ND ND ND

10 SI ND ND ND ND ND ND ND ND ND ND ND ND



40 ND ND ND ND ND ND ND ND 15 ND ND ND ND

45 ND ND ND ND NI) ND NI) ND 150 ND ND ND ND

Method Detection 50 5 5 5 5 5 50 5 5 50 5 5 5

Level

EPA Region IX PRG 8.4 x 106 52,000 1 I 25,000 600,000 3.0 x 106 3.4 x 107 3.200 17.000 NA 2.8 x 106 690,000 990,000

Industrial Prnperty (cal fric) (cal fcal (nc) fnc) (nc) (cal (cal (sHtl (sat) (satt

Dilution Factor (DF) for sample is 10. Reporting Limit for sample is DF x Method Detection Level

EXPLANATION FOR TABLE l Trans -I,2- DCE = Trans- I,2- Dichloroethene TCE = Trichloroethene 1,3 DCB = 1,3- Dichlorobenzene ND = not detected

t,l- DCA = I,1- Dichloroethane 1,2 DCB = 1,2- Dichlorobenzene 1,4 DCB = I,4- Dichlorobenzene pg/kg o micrograms per kilogram or parts per billion (ppb)

Region IX PRG = US Environmental Protection Agency Region IX Preliminary Remediation Goals for Industrial Properties, September 1995

Industrial Property ca = PRG concentration based on cancer risk nc = PRG concentration based on noncarcinogenic health threats

sat = PRG concentration based on soil saturation equation

EPA 8240 compounds not listed in Table I were not detected in any of the analyzed samples from boring B -I3 through B -27

TABLE 2

Summary of Chemical Analysis Data For Soil Samples Collected from Borings B -28 and B -29 at the Former TADCO Site, 363 West I

EPA Method 8260 Compounds and Additional GC/MS Compounds - Concentrations in µg /kg (Parts Per I

Boring Jimber

Sample Denth Ifl)_Benzene

n-Butyl- benzene

sec-Butyl- benzene

ten-Butyl- benzene

cis-1,2 tg_

trans-1,2 Ethyl- benzene

Isopropyl- benzene

p-Isoproyl- toluene Naothalene

n-Propyl benzene Toluene TC1

,2,4-Trímethy benzene

B-28 5 ND M) ND ND

___VI ND ND ND ND ND ND ND 74 ND ND

10 ND ND ND ND ND ND ND ND ND ND ND 188 ND ND

I5 1,000 3,040 5.000 200 ND ND 11,600 7,540 4,800 11,800 14,100 233 200 12,000

20 60 46 ND ND 53 32 150 76 55 100 120 83 62 476

25 ND ND ND ND ND ND ND ND ND ND ND 13 ND ND

30 ND ND ND ND 162 18 ND ND ND ND ND S 27 ND

35 ND 26 104 ND 83 636 8.5 25 28 18 20 970 1,560 ND

40 ND ND ND ND 8.4 ND ND ND ND ND ND 224 ND ND

45 ND ND ND ND 118 85 ND ND ND ND ND ND 187 ND

B-29 5 ND ND ND ND ND ND ND ND ND ND ND 28 ND ND

10 ND ND ND ND 20 ND ND ND ND 66 ND 170 ND ND

15 ND ND ND ND 41 ND ND ND ND 17 ND 7.4 ND ND

20 ND ND ND ND 47 ND ND ND ND ND ND 35 ND ND


30 ND ND ND ND 103 ND ND ND ND ND ND 16 7.8 ND

35 ND ND ND ND 192 ND ND ND ND ND ND 18 32 ND


45 ND ND ND ND 120 ND ND ND ND ND ND 6.1 150 ND

Method Detection 5 5 5 5 5 5 5 5 5 5 5 5 5 5

Level (MDL)

EXPLANATION FOR TABLE I DCE = Dichloroeihene TCE = Trichlorocthene ND = not detected at MDL

TABLE 3

Summay of Chemical Analysis Data for Soil Samples Collected From Borings B- I thro

at the Standard Metals Site on August 29, and September 2, 1997

Boring Sample TPH-g TRPH Arochlor -1254 Benzene cis- 1,2 -DCE trans - I ,2 -DCB Eth.henz

Nennher Depth at) (mg/kg) (mg /kg) (µg /kg) (µg /kg) (µg /kg) (Ng /kg) (Ng /kg

B-1 5 ND ND ND ND ND ND NI

10 ND ND ND ND 80 ND M 15 NA NA ND NA NA NA Ni

20 ND ND NA ND 36 ND NL

30 ND ND NA ND 170 ND NI

40 2.7 ND NA 6.7 3,600 6.6 M

13 -2 5 ND ND ND ND 12 ND NI

10 ND ND ND ND 39 ND M 15 ND ND ND 6.4 8,100 1 NI

20 ND 144 NA ND 66 ND NI



35 ND ND NA ND 170 ND NL

40 ND ND NA ND 1,800 ND NI

B-3 5 ND 175 ND ND 440 19 NI

10 ND ND ND ND 30 ND

15 NA NA ND NA NA NA N/


30 ND ND NA ND 50 ND M 40 1.2 ND NA ND 66 ND NI

B-4 5 ND ND ND ND ND ND M 10 ND ND ND ND ND ND NI

IS ND ND ND ND ND ND NI

20 ND ND NA ND ND ND NI




40 ND ND NA ND 450 ND 9.(

MDL 1.0 10 50 5 5 5

Seplcinhrr 1997

TABLE 3 Continued

Summay of Chemical Analysis Data for Soil Samples Collected From Borings B -1 throu

at the Standard Metals Site on August 29, and September 2, 1997

Boring Sample TPH-g TRPH Arochlor- 1254 Benzene cis - I ,2 -DCE trans-1,2-DCE f th.henzct

Number Depth (Ii) (ing/kg) (mg/kg) (Etg/hg) (µg /kg) (Etg /kg) (mg/kg) (Ftg/kg)

B-5 5 ND 220 ND ND 150 ND ND

IO ND 62 ND ND 26 ND ND

B-5A 15 NA NA I20 NA NA NA NA

20 ND ND NA ND 71 ND ND



45 NA NA NA NA 530 ND ND

MDL 1.0 10 50 5 5 5

EXPLANATION FOR TABLE I

(ft) = feet below surface

TPH -g = total volatile petroleum hydrocarbons as gasoline by EPA 8015M

TRPH = total recoverable petroleum hydrocarbons by EPA 418.1

Arochlor - 1 254 is a PCB detected by EPA method 8080

cis -1,2 -DCE = cis - l ,2- dichloroethene

trans- I ,2 -DCE = trans - i ,2- dichlorethene

Eth.benzene = ethylbenzene

"l'CE = trichloroethene

(mg /kg) = milligrams per kilogram or parts per million (ppm)

(l.tg /kg) = micrograms per kilogram pr parts per billion (ppb)

ND = not detected at specified reporting limit (MDL x dilution factor)

NA = not analyzed

MDL = method detection level

tiehtemher 1997

TABLE 4 Summary of Chemical Analyses Results for Soil Samples

Collected in Area of Above Ground Tank Farm

at TADCO, 363 West 133rd Street, Los Angeles, CA

Sample Sample Diesel Fuel TRPH Toluene Ethylbenzene Xylenes Bis(2- Ethylhexyl)phthalate

ID Depth (8015M) ,0418.1) - - --- (8240/8020) (8270)

HA-1-1 ft. 43 NA NA NA NA NA HA-2-1 ft. 81 NA ND ND ND NA HA-3-1 ft. 150 NA NA NA NA 2.85 HA-4-1 ft. 150 NA NA NA NA ND

HA-5-1 ft. 120 NA ND ND ND NA

HA-6-1 ft. 2,000 NA ND 0.27 1.80 NA HA-7-1 ft. ND NA NA NA NA NA

HA-8-1 ft. 100 NA NA . NA NA NA

HA-9-1 ft. ND 320 NA NA NA NA

HA-10-1 ft. ND 390 NA NA NA NA

B-27-5 5 ft. ND NA ND ND ND NA



B-27-25 25 ft. ND NA NA NA NA NA B-27-30 30 ft. NA NA ND ND ND NA

MDL IO 10 0.005 0.005 0.015 0.33

All values reported in parts per million (ppm) or milligrams per kilogram (mg/kg) ND = Not Detected (below detection limits) NA = Not Analyzed EPA 8240, 8020, and 8270 compounds not listed in Table4 were not detected

TABLE 5

Summary of EPA Method 8015M (TPH -Gasoline) and EPA Method 8080 (PCBs) Chemical Analysis Data for Soil Borings B -14 and B -15 Drileld by ASE at the

TADCO Site on August 3, 1995

Soil Borin*

Sample Depth (rte

TPH -Gasoline (mg!.kg)

Arocfor- I 2 42

(ug/kg) Aroclor-1260

( ug*/kg )

B-14 5 870 3.050 108

1.5 4.9 NA NA 25 1.2 NA NA 35 8.5 ND ND 45 4.6 NA NA

B-15 10 ND NA NA 30 ND NA NA 35 2.7 NA NA 40 20 ND ND 45 54 NA NA

MDL 1.0 33 33

ft. = feet below surface mg /kg = miligrams per kilogram or parts per million µg /kg = micorgrams per kilogram or parts per billion ND = not detected at method detection level NA = not analyzed MDL method detection level

Aqua Science Engineers, inc.

TABLE 6

Summary of EPA method 8260 Chemical Atialysis Data for Soil Samples Collected on December 23, 1997 form

Drilled by Frey Environmental at the Former TADCO Site, 363 West 133rd Street, Los Angeles California

Concentrations in Parts Per Billion (µg/kg)

Boring Number

Sample

Dçpth (ttl Acetone

ND NI) ND 420 570 92

72

ND s9

ND ND ND ND ND ND ND ND ND

1,100 350 110

30 ND ND 34 46

Vinyl Chloride

NO ND 260 110 20 1.3. ND ND 24

ND NI) ND ND ND ND ND ND 53

ND ND ND ND ND ND ND 58

Nzcthylene Chloride


ND ND ND ND ND ND ND ND 93

ND ND ND ND ND ND ND ND

trans-1,2- DCE

ND ND ND 280 210

10

7.4 ND 21

ND ND ND ND ND ND ND NO 15

ND NI) ND ND ND 15

ND 55

cis-1,2- DCF

ND ND ND 220 170

12

5.7 ND 71

7.4

Itl 18

18

52 ND 6.4

130 460

ND ND ND ND ND ND 19

180

Benzene

ND ND 90 55

450 ND ND ND ND

ND ND ND ND 13

ND ND ND ND


TCE

ND ND ND 140 150 26

ND ND I50

ND ND 5

ND ND ND ND ND ND

ND ND ND ND - ND ND ND ND

Ethyl- benzene

ND ND 300

1,100 1,000

38 24

ND ND



m+p Xylenes

ND ND

1,400 430 69 32 12

ND ND


ND ND ND

--ND .

ND ND ND ND

o-Xylene

ND ND 150 30 ND ND ND ND ND



n-Propy!- henzene

ND ND 300 840 560 24 15

ND ND



1,3,5-TM8

ND ND

1,101 41

18

ND 5

ND ND



I,2,4-TMB

ND ND

2,200 890 86 ND 5

ND ND



Scc-Butyl- p

henzene

ND ND 110

190 120 ND 7

ND ND



PB-I

PB-2

MW-4

5

10

15

2(1

25

30 35

;0 ::5

5

10

t5 20 25

30 35

Á -15

5

15

21)

'5 3(1

35 10 45

MDL 20 5 5 5 5 5 5 5 5 5 5 5 5 5

= concentration reponed below MDL trans- I,2 -DCE = trans- 1,2- Dichlorethene cis - L2. DCE = cis -I.2 -Dich loroct hone

ICE = Tnchloroethene 1,3j -TM B= I,3,5.Tnmethylhenzene 1,2.4 -TM B = I,2.4- Tnmclhylheruenc MDL = method detection level ND = on detected

Attachment 3

Site map showing the locations of grab soil samples collected by ASE during the removal of

underground chemical storage tanks on July 2, 1 996 at the former TADCO site, and a summary

table eof EPA 8240 chemical analysis data for the soil samples.

: gm! S{YL'f1:.. Engineers, Inc. -' ,^

Fire Hydrant

13255 South Broaday

ASPALT PAVING

Driveway and Parking Area for 13255 South Broaday

J // OFFICE

AND SHOP BUILDING

6.000 Gallon Above Ground Polymeric MDI Removed

Approx. Area of Underground Septic Tank

M

Sidewalk

NW4'

-9- TIE

0,-[[ -- T2E

f-®Y I 73E

I I

TIW T2W Ì Ì

T3WI \ / Gale WEST 133RO STREET

IÁ ll J

4e---Underground Tank Lacatlune

5,000 Gallon USTs 6,000 Gallon UST Propylene Oxide Ethylene Dlamine

ASPALT PAVING

Landscaped Area

T.A. DAVIES COMPANY 363 WEST 133110 STREET (Polyurethane Resin Mtg.)

Gate

Approximate Location of Large Concrete Pd

Depth >12 tt. bgs

LEGEND

T I E Sample Designation

0 Sample Location

LA INDUSTRIAL SERVICE

378 W. 133RD ST. (Metal Scrap Recycler)

SCALE

0 10 20 30 40 50

.1--

TABLE 1

Summary of Chemical Analyses Results for Soil Samples

Collected in Area of Underground Storage Tank Farm

at TADCO, 363 West 133rd Street, Los Angeles, CA

Sample Sample Acetone Benzene Carbon Disulfide E. Benzene 2-1-lexanone Vinyl Acetate

ID Depth 8240

SS ND ND ND ND ND ND

NW 4 70 ND ND ND ND ND

TIE I 3 380 ND 7.1 ND ND ND

T1 W 13 220 9.6 ND ND ND ND

T2E 13 7,670 14 ND ND 55 7.3

T2W 13 200 ND ND ND ND ND

T3E 13 1,030 ND 6.8 ND ND ND

T3W 13 3,400 ND 22 16 ND 13

ND r Not Detected (below detection limits) NA = Not Analyzed

Concentrations reported in micrograms per kilogram (parts per. billion)

Attachment 4

Site map showing the locations of' grab .soil samples collected by ASE during the removal of a

septic tank on September 27. 1997 at the former TADCO site. and a summary table of EPA )260

chemical analysis data for the soil samples and liquid /sludge samples collected From the septic

tank.

.!ipUa .Se1eJM:e Engineers, Inc.

Tadco Site Western Boundary -i

Approximate Location of Large Concrete Pit

La Industrial Service 378 West 133rd Street

(ivieial Scrap 'v'ard)

ABOVE GROUND

TANK FARM (Removed)

\ \ \ \ \ \ \ \ / / / / / / ! / ` ` J/`/`/`/`/`/`/`/ \ 1 \ \ \ 1 N. \ \ \ ...,....////

J / / / I I ! + /

rar,+ra sss rWN . Concrete Loading

Dock (Removed)

\ \ \ \ \ \ \ \ / / ! / / ! / \ \ / \ \ \

Office And Shop Building

(Removed)

ST-A-Ir I

LI

ST-B

LL LL ° -1, -2 Approx. Former Location lj

of Septic Tank (6 ft. x 8 ft. x 5 ft.)

Appro. Former Location of 4 in. PVC Leach Line

Total Length Unknown

Former T.A. Davies Co. Site

363 West 133rd Street (Polyurethane Resin

Manufacturer)

LEGEND

Soil sample collection location and

designation. ST = septic tank, LL = leach line

i '4 Tadco Site

Í Eastern Boundary

Gate

SCALE 1:240 (1" = 20')

0 10 20 30 40 i

Parking Area for Adjacent Building

Sidewalk

WEST 133RD STREET

50 ft.'

FIGURE 2

Site Plan Showing Former Septic Tank Location

and Locations of Soil Samples Collected on the Day of Septic Tank Removal (9/27/96)

Site: Former T.A. Davies Co. Site.

363 W. 133rd Street Los Angeles, California


TADCO Septic System Demolition - 161 West I31rd Street. Los Angeles ASE Project No. 2992

TABLE 1

Summary of Chemical Analysis Data for Liquid /Sludge Samples Collected from within the

Septic Tank and Soil Samples Collected from Beneath the Septic Tank and Leach Line Concentrations are in µg/1 t'or Septic Tank Samples and µg /kg for Soil Samples

Septic TL nk Samples Soil Samples

Chemical Compounds ST-S I ,2 ST-L I .2 ST-A ST-B LL-1 LL-2

Acetone ND ND ND 61 ND ND

Benzene 5.5 ND ND ND ND ND

4-Chl<,rötoluene 53 30 9.4 ND 64 43

l.4-Dichlorobenzene 230 I 5 130 24 46 21

I,I-Dichloroethane ND ND 6.0 7.6 7.2 6.9

cis-I?-Dichloroethene ND ND II ND ND ND

Ethvlbenzene 36 22 ND ND 13 9.9

p-Isopropyltoluene 25 13 ND ND 28 16

Methylene Chloride ND NL) 7.2 1 I ND 33

Naphthalene 24 19 5.1 ND 47 42

n-Propylhenzene ND ND ND ND 9.1 6.7

Toluene 36 22 ND ND 6.4 ND

1.2.4-Trimethylbenzene 39 25 5.4 ND 79 61

1.3.5-Trimethvlbenzene Il 6.4 ND ND 25 19

Xvlcnes (total) 26 21 ND ND 43 33

Compounds not listed were not detected ND = not detected at specified detection level

N(,\ eiuhei 1996 Aqua Science Engineers, Inc.

Attachment 5

Site maps showing the groundwater elevation and flow characteristics determined by ASE during

April 1998. and selected VOC chemical analysis data for groundwater samples collected by ASE

From wells MW- l through MW -4.

Aqua Science Engineers. Inc.

SCALE

20 40 feet

Asphalt pavement for parking at

13255 South Broadway

Gale

Surface Line Dividing Asphalt Pavement

--- and Concrete Pavement

Concrete pavement Incorporated into a

parking area for 13255 South Broadway

Former TADCO site

363 W 133rd Street

Approximate Property Line and Fence Line

Standard Metals I LA Industrial Site

378 W. 133rd Street

Land survey data collected by ASE on 4/28/98 and 5/4/98

Groundwater depths collected on 4/28/98 ,

84.00 I

M W 4

TOC Elev.= 125.88 It.

GW Sudace Etev _ 83.90 lt. Depth to GW Surface = 41.98 It. _ _____ ---

Estimated Groundwater Surface

85.00 II. Equipolentiat Line Based on 4/28/98 1t

Groundwater Depth Measurements tl

MW3 TOC Elev,128,41 1t.

GW Surface Elev.=85,99 It

Depth to GW Sudace=42.42 It. Concrete Pit for Former Metal Eriquelter

/ 1 i i / /

.

Gate

85.00 11

WE

8

SCALE

0 20 40 feel.

Asphalt pavement for parking at

13255 South Broadway

Surface Line Divldin Asphalt Pavement

and Concrete Pavement g v

Concrete pavement Incorporated into a

parking area for 13255 South Broadway

Former T,4050 site 36a vv. 133rd Street

Approximate Property Line and Fence Une

1:a

m W 4

fCE 7,5as

os-1 2 DCE 510 vinyl Chl.nde ire

. - -S.-- - _- -, - 1_ - - M1.- -,- , -- - - ---- - _ -,-- Standard Metals / LA industrial Site

378 W. 133rd Street

NOTE All concentrations ot VOCs are in parts per billion big/kg)

M W ' 3

1-CE cien Os- I 2 OC.E 4 610

VWiI C'lùiwl i im Concrete Pit for Former

sierar gisqueller

Gale

Attachment 6

Summary table and Cal -EPA certified laboratory report of EPA 8260 and 8015 chemical analysis

data for groundwater samples collected from wells MW -1 through MW -4 by ASE on April 28.

1998.

Aqua .Science En,ineers. Inc.

TABLE 2

Summary of Volatile Oceanic Cun)Iulund EPA I;260 Chemical Analysis Data (or Groundwater Samples Collect

Ground\\ toe). Wells 1\1W -I. 2, 3 and 4 Installed by Frey Environmental for Standard 1\lctals

Ali Concentrations are reported in parts per billion (pg1I)

Well Sample Bcntenc Toluene Ethyl Total Acetone 2-Bu(anone 4.Mcthyl- Chlorol'nnn TCFP1 Vinyl PCB rCE tran

Number D:nc Benzene Xvlcncs 2-l'cntanonc Chloride E

M\W- I It 5/16/47 162 28 162 9a9 38 149 17.100 4.270

7/9/97 14 89 17 61 116 ND ND 20.700 1.210

MW-1 4/28/98 ND 67.5 ND ND ND ND ND ND ND 5.830 ND 675 (

Mw-2 4/2K/4K ND ND ND ND ND ND ND ND ND 283 ND 7.35(1

MW-3 1/28/48 ND 2411 ND ND 180,(X)0 ND ND ND ND 4.18(1 ND 6,400 1

M\\'-4 1!6/98 ND ND ND ND ND ND ND 20 22 24)) 22 -1.6(K)

4/28/48 ND ND ND ND ND ND ND 20 29 170 28 7.5(X)

Ir1I)1- 5 5 5 2)) 20 2)) 5 5 5 5 5

Dn1CL 1 I50 700 I.75(1 NA NA NA NA 150 0.5 5 5

ENNA NATION FOR TABLE l

1M\'.'- I = grnundn titer samples collected on 5/16/97 and 7/9/97 acre collected by Frey Environmental. Inc. - Laboratory reports were not provided

1 CFnl = width a- olhnnnrelhanc DCE = dichloruclhcnc DCA = dichloroethanc TCE = trichlorocthenc PCE = IC)rachlnrncthcnc TCA = triclilorocthane ND = not detected MDL = method detection level for samples collected by ASE. Inc.

DMCI. = Title 22 Maximum Drinking Water Contaminant Level NA = nn) applicable or nn) mailable Fut samples collected by ASE on 4/28/98 the dilution Dctors fol' the chemical analyses arc as follows:

MW -1 = 12.5. MW-2 = 25. MW -3= 25. MW -4 = I

The actual dcicctin i le%cls for (he sample is the MDI_ dilution factor

Southland Technical Services, Inc. Environmental Laboratories

7801 Telegraph Road, Suite L

Montebello, CA 90640

Phone (213) 888 -0728

Fax (213) 888 -1509

05 -04 -1998

Mr. Mike Mare llo Aqua Science Engineers 17895 Sky Park Circle, Suite E.

Irvine, CA 92714

Project: Standard Metals Project Site: 378 W. 133rd Street, Los Angeles

Sample Date: 04 -28 -1998 Lab Job No.: G80471

Dear Mr. Marello:

Enclosed please find the analytical report for the sample(s) received by STS Environmental Laboratories on 04 -28-

1998 and analyzed by the following EPA methods:

EPA 8260 (VOCs by GC /MS) EPA 8015M (Gasoline)

All analyses have met the QA/QC criteria of this laboratory.

The sample(s) arrived in eood conditions (i.e., chilled, intact) and with a chain of custody record attached.

STS Environmental Laboratory is certified by CA DHS (Certificate Number 1986). Thank you for giving us the

opportunity to serve you. Please feel free to call me at (213) 888 -0728 if our Laboratory can be of further service

to you.

Sincerely.

L--/ r

Roger Wang, Ph. D. Laboratory Director

Enclosures



7801 Telegraph Road, Suite l_


Phone (213) 888.0728 Fax (213) 888-1509

Client: Aqua Science Engineers Lab Job No.:G80471 Date Reported: 05 -04 -98

Projeçt: Standard Metals /378 W. 133rd Street, LA Matrix: Water Date Sampled: 04 -28 -98

EPA 8260A (VOCs by GC /MS, Page 1 of 2)

Reporting Unit: ug /L(pph)

1 DATE ANALYZED 04-29-98 04-29-98 ' 04-29-98

DILUTION FACTOR 1 1 1

LAB SAMPLE I.D. G0471-4 G0471-5

CLIENT SAMPLE I.D. TB EB

COMPOUND MDL MB

Dichloroditluoromethane 5 ND ND ND

1Chloromethane 5 ND ND ND

Vinyl Chloride 5 ND ND ND

Bromomethane 5 ND ND ND

Chloroethane 5 ND ND ND

Trichlorotluoromethane 5 ND ND ND

1,1-Dichloroethene 5 ND ND ND

Iodomethane 5 ND ND ND

Methylene Chloride 5 ND ND ND

Irans-1,2-Dichloroethene 5 ND ND ND

1.1-Dichloroethane 5 ND ND ND 1 ' 2,2-Dichloropropane 5 ND ND ND

cis-1,2-Dichloroethene 5 ND ND ND ' Bromochloromethane 5 ND ND ND

Chloroform 5 ND ND ND

1,2-Dichloroethane 5 ND ND ND

1.1,1-Trichloroethane 5 ND ND ND

Carbon tetrachloride 5 ND ND ND

1.1-Dichloropropene 5 ND ND ND

Benzene 5 ND ND ND

Trichloroethene 5 ND ND ND

1.2-Dichlorupropane 5 ND ND ND

Bromodichloromethnne 5 ND ND ND

Dihromomethane 5 ND ND ND

Trans-1.3- Dichloropmpene

5 ND ND ND

4í.-L.3-DichloroproPene 5 ND ND ND

..1._'TriL'hlurue[hane 5 ND ND ND

t,3-Dichlunopropane 5 ND ND ND

Dihromochlorurrtethane 5 ND ND ND

2-Chloroethylvinyl ether 5 ND ND ND

Bnomotorm 5 ND ND ND

Isopropylhenzene 5 ND ND ND

'Brumohcnzenc 5 ND ND ND




Phone (213) 888 -0728 Fax (213) 888 -1509

Client: Acquit Science Engineers Lab Job No.:G80471 Date Reported:

EPA 8260A (VOCs by GC /MS, Page 2 of 2) Reporting Unit: ug /L(pph)

05 -04 -98

COMPOUND MDL MB TB EB

Toluene 5 ND ND ND

Tetrlchloroethene 5 ND ND ND

1,2-Dihromoethilne(EDB) 5 ND ND ND

Chlorohenzene 5 ND ND ND

1,1,1,2-Tetrachloroethan 5 ND ND ND

Ethylhenzene 5 ND ND ND

m+p-Xylenes 5 ND ND ND

o-Xylene 5 ND ND ND

Styrene 5 ND ND ND

1,1.2.2-Tetrachloroethan-' 5 ND ND ND

1,2.3-Trichloropropane 5 ND ND ND

n-Propylhenzene 5 ND ND ND

2-Chlorotoluene 5 ND ND ND

4-Chlurotoluene 5 ND ND ND

1,3,5-Trimethylhenzene 5 ND ND ND

tert-Butylhenzene 5 ND ND ND

1.2,4-Trimethylhenzene 5 ND ND ND

Sec-Butylhenzene 5 ND ND ND

1,3-Dic,hlorohenzene 5 ND ND ND

p-Isopropyltoluene 5 ND ND ND

1,4-Dichlorohenzene 5 ND ND ND

1,2-Dichlorohenzene 5 ND ND ND

n-Butylbenzene 5 ND ND ND

1.2,4-Trichlorohenzene 5 ND ND ND

1 2-Dihmmo-3- Chluropropune

5 ND ND ND

Hexachlorohutadiene 5 ND ND ND

Naphthalene 5 ND ND ND

1.2,3-Trichlorohenzene 5 ND ND ND

Additional Compounds

Acetone 20 ND ND ND

2-Butanone (MEK) 20 ND ND ND

Cancon disulfide 20 ND ND ND

4-Methyl-2-pentanc,ne MIBI

20 ` ND ND ND

2-Hexanone 20 ND ND ND .

Vinyl Acetate 50 ND ND ND

MTBE 5 ND ND ND

ND = Not Detected (at the specified limit)




Phone (213) 888 -0728

Fax (213) 888 -1509

05 -04 -1998

Client: Aqua Science Engineers Lab Job No.: G80471

Project: Standard Metals Project Site: 378 W. 133rd Street, LA Date Sampled: 04 -28 -1998

Matrix: Wate r Date Received: 04 -28 -1998

Batch No.: CD29 -GW1 Date Analyzed: 04 -29 -1998

EPA Method 8015M(Gasoline) Reporting Units: cg /L (ppb)

Sample ID Lab ID Gasoline Range TPH* Reporting Limit

Method Blank ND 50

MW -1 G0471 -1 3,970 50

MW-2 G0471 -2 2,640 50

MW -3 00471 -3 12,600 50

TB 00471 -4 ND 50

EB G0471 -5 ND 50

Gasoline Range TPH are hydrocarbons in the range of C4 - C12.




Phone (213) 888 -0728 Fax (213) 888 -1509

Client: Aqua Science Engineers Lab Job No,:G80471 Date Reported:

Project: Standard Metals/378 W. 133rd Street, LA Matrix: Water Date Sampled: 05 -04 -98 04 -28 -98

EPA 8260A (VOCs by GC /NIS, Page 1 of 2)

Reporting Unit: µg /L(ppb)

DATE ANALYZED 04 -29 -98 04 -29 -98 04 -29 -98 04 -29 -98

DILUTION FACTOR 1 12.5 25 25

LAB SAMPLE I.D. G0471-1 G0471-2 G0471-3

CLIENT SAMPLE I.D. MW-1 M W-2 MW-3

COMPOUND MDL MB

Dichloroditluoromethane 5 ND ND ND ND

Chloromethane 5 ND ND ND ND

Vinyl Chloride 5 ND 5,830* 283 4,180

Bromomethane 5 ND ND ND ND

Chloroethane 5 ND ND ND ND

Trichlorotluoromethane 5 ND ND ND ND

1,1-Dichloroethene 5 ND ND ND ND

lodomethane 5 ND ND ND ND

Methylene Chloride 5 ND ND ND ND

trans-1,2-Dichloroethene 5 ND ND ND ND

1,1-Dichloroethane 5 ND ND ND ND

2,2-Dichloropropane 5 ND ND ND ND

cis-1,2-Dichloroethene 5 ND 7,350* 5,300* 4,630

Bromochloromethane 5 ND ND ND ND

Chloroform 5 ND ND ND ND

1,2-Dichloroethane 5 ND ND ND ND

1,1.1-Trichloroethane 5 ND ND ND ND

Carbon tetrachloride 5 ND ND ND ND

1.1-Dichloroprupene 5 ND ND ND ND

Benzene 5 ND ND ND ND

Trichloroethene 5 ND 675 7,350* 6,400

-1,2-Dichlciropropane 5 ND ND ND ND

Bromoclichlorctmethane 5 ND ND ND ND

Dihromomethane 5 ND ND ND ND

'Trans-1.3- Dichlmprcpene

5 ND ND ND ND

ris-1.3-Dichloropropene 5 ND ND ND ND

1.1.2-Trichloroethane 5 ND ND ND ND

1.3-Dichlorupropane 5 ND ND ND ND

Dihnomt,chloromethane 5 ND ND ND ND

2-Chltiroethylvinyl ether 5 ND ND ND ND

Bromo fo rm ND ND

l,opropylhenzene 5 ND ND ND ND

Bromohenzene 5 ;vD ND ND ND




Phone (213) 888-0728 Fax (213) 888 -1509

Client: Aqua Science Engineers Lab Job No.:G80471 Date Reported:

EPA 8260A (VOCs by GC /MS, Page 2 of 2)

Reporting Unit: µg /L(ppb)

05 -04 -98

COMPOUND MDL MB MW-1 MW-2 MW-3

Toluene 5 ND 67.5 ND 240

Tetrachloroethene 5 ND ND ND ND

1,2-Dibromoethane(EDB) 5 ND ND ND ND

Chlorobenzene 5 ND ND ND ND

1.1,1,2-Tetrachloroethan 5 ND ND ND ND

Ethylhenzene 5 ND ND ND ND

m+p-Xylenes 5 ND ND ND ND

o-Xylene 5 ND ND ND ND

Styrene 5 ND ND ND ND

1, 1,2,2-Tet rachloroethan 5 ND ND ND ND

1,2,3-Trichloropropane 5 ND ND ND ND

n-Prc,pylbenzene 5 ND ND ND ND

2-Chhorotoluene 5 ND ND ND ND

4-Chlorotoluene 5 ND ND ND ND

1.3,5-Trimethvihenzene 5 ND ND ND ND

tert-Butylbenzene 5 ND ND ND ND .

1,2,4-Trimethylhenzene 5 ND ND ND ND

Sec-Butylhenzene 5 ND ND ND ND

1,3-Dichlorohenzene 5 ND ND ND ND

p-Isopropyltoluene 5 ND ND ND ND

1,4-Dichlorobenzene 5 ND ND ND ND

1,2-Dichlorohenzene 5 ND ND ND ND

n-Butylhenzene 5 ND ND ND ND

1,2.4-Trichlorohenzene 5 ND ND ND ND

! .2-Dihmmo-3- Chlcruprupane ND ND ND ND

Hexuchlclrohutadiene 5 ND ND ND ND

Naphthalene 5 ^ ND ND ND ND

1.2,3-Trichlorohenzene 5 ND ND ND ND


Acetone 2O ND ND ND 180,(1(10*

2-Butanone (MEK) 20 ND ND ND ND

Carbon disullide 20 ND ND ND ND

4-Methy1-2-pentanonc MIBh

20 ND ND ND ND

2-Hexanonc 20 ND ND ND ND

Vinyl Acetate 50 ND ND ND ND

MTBE 5 ND ND ND ND

ND =Nnt Detected (at the specified limit): * Obtained with a higher dilut'on analysis.




Phone (213) 888 -0728

Fax (213) 888 -1509

Client: Aqua Science Engineers Project: Standard Metals Matrix: Water Batch No: 0429 -VOCW

EPA 8260 Batch QA /QC Report

I. MS/MSD Report Unit: ppb

05 -04 -1998

Lab Job No.: G80471

Lab Sample ID: V0473 -4

Date Analyzed: 04 -29 -98

Compound MB Conc.

Spike Conc.

MS MSD MS %Rec.

MSD %Rec.

% RPD %RPD Accept.

Limit

%Rec Accept.

Limit

1,1- Dichloroethene

ND 20 19.4 20.5 97.0 103 5.5 30 70 -130

Benzene ND 20 18.7 20.4 93.5 102 8.7 30 70 -130

Trichloro- ethene

ND 20 22.7 26.0 114 130 13.6 30 70 -130

Toluene ND 20 19.4 21.7 97.0 109 11.2 30 70 -130

Chloroheazene ND 20 20.5 23.0 103 115 11.5 30 70 -130

II. LCS Result Unit: ppb

Compound LCS Report Value True Value Rec.% Accept. Limit

1,1- Dichloroethene 23.7 20 119 80 -120

Benzene 18.3 20 91.5 80 -120

Trichloro -ethene 20.4 20 102 80 -120

Toluene 19.5 20 97.5 80 -120

Chloruhenzene 19.9 20 99.5 80 -120

ND: Not Detected (at the specified limit)




Phone (213) 888.0728 Fax (213) 888 -1509

Client: Aqua Science Engineers Project: Standard Metals Matrix: Water Batch No: CD29 -GW1

EPA 8015M (Gasoline) Batch QA /QC Report

LCS /LCSD Report Unit: ppb

05 -04 -1998

Lab Job No.: G80471

Lab Sample ID: LCS Date Analyzed: 04 -29 -98

Compound MB Spike Conc.

LCS LCSD LCS %Rec.

LCSD %Rec.

% RPD %RPD Accept. Limit

%Rec Accept. Limit

Gasoline ND 1000 919 936 91.9 93.6 1.8 30 70 -130

qT/i Southland Technical Services, Inc.

Environmental Laboratories 7801 Telegraph Road, Suite L

Phone (213) 888-0728

Montebello, CA 90640 Fax (213) 888 -1509

05 -04 -1998

Mr. Mike Marello Aqua Science Engineers 17895 Sky Park Circle, Suite E. Irvine, CA 92714

Project: TADCO Project Site: 363 W. 133rd Street, Los Angeles Sample Date: 04 -28 -1998 Lab Job No.: G80472

Dear Mr. Marello:



EPA 8260 (VOCs by GC /MS) EPA 8015M (Gasoline)

All analyses have met the QA /QC criteria of this laboratory.

The sample(s) arrived in good conditions (i.e., chilled, intact) and with a chain of custody record attached.

STS Environmental Laboratory is certified by CA DHS (Certificate Number 1986). Thank you for giving us the

opportunity to serve you. Please feel free to call me at (213) 888 -0728 if our Laboratory can be of further service

to you.

Sincerely.

Roger Wang. Ph. D. Laboratory Director

Enclosures





Phone (213) 888 -0728 Fax (213) 888 -1509

Client: Aqua Science Engineers Lab Job No.:G80472 Date Reported:

Project: TADCO /363 W. 133rd Street, Los Angeles Matrix: Water Date Sampled: EPA 8260A (VOCs by GC /MS, Page 1 of 2)

Reporting Unit: ug /L(ppb)

05 -04 -98 04 -28 -98

DATE ANALYZED 04-29-98 Ó4-29-98 DILUTION FACTOR 1 1

LAB SAMPLE I.D. G0472-1

CLIENT SAMPLE I.D. MW-4

COMPOUND MDL MB

Dichlorodifluoromethane 5 ND ND

Chloromethane .5 ND ND

Vinyl Chloride 5 ND 170

Bromomethane 5 ND ND

Chloroethane 5 ND ND

Trichlorottuoromethane 5 ND 29

1,1-Dichlorbethene 5 ND 10

lodomethane .5 ND ND

Methylene Chloride 5 ND ND

trans-1,2-Dichloroethene 5 ND 110

1,1-Dichloroethane 5 ND 5.8

I2 2-Dichloropropane 5 ND ND

Icís-1.2-Dichloroethene 5 ND 510*

Bromochloromethane 5 ND ND

Chloroform 5 ND 20

1,2-Dichloroethane 5 ND ND

1,1,1-Trichloroethane 5 ND ND

Carbon tetrachloride 5 ND ND

1,1-Dichlorop rope ne 5 ND ND

Benzene 5 ND ND

richloroethene 5 ND 7,500`

1,2-Dichloropropane 5 ND ND

Bromoclichloromethane 5 ND ND

11)ihromomethane 5 ND ND

ranti 1,3 Dirhlomprope ne

5 ND ND

.is-1 ,3-Dichiompropene 5 ND ND

1.1.2-Trichloroethane 5 ND ND

1.3-Dichloropropune 5 ND ND

il ihrumochlorumethane 5 ND ND

'-Chloroethylvinyl ether 5 ND ND

: romotorm 5 ND ND

lsopropylhenzene 5 ND ND

:nomohenzene 5 ND ND



Montebello. CA 90640

Phone (213) 888 -0728

Fax (213) 888 -1509

Client: Aqua Science Engineers Lab Job No.:G80472 Date Reported: EPA 8260A (VOCs by GC/MS, Page 2 of 2)

Reporting Unit: ug/L(ppb)

05 -04 -98

COMPOUND MDL MB MW-4

Toluene 5 ND ND

Tetrachloroethene 5 ND 28

1,2-Dihromoethane(EDB) 5 ND ND

Chlorobenzenc 5 ND ND

1,1,1,2-Tetrachloroethan 5 ND ND

Ethylbenzene 5 ND ND

m+p-Xylenes 5 ND ND

o-Xylene 5 ND ND

Styrene 5 ND ND

1,1,2,2-Tetrachloroethan 5 ND ND

1.2,3-Trichloropropane 5 ND ND

n-Propylhenzene 5 ND ND

ÿ-Chlorotoluene 5 ND ND

4-Chlorotoluene 5 ND ND

1,3,5-Trimethylbenzene 5 ND ND

tert-Butylhenzene 5 ND ND

1.3.4-Trimethylbenzene 5 ND ND

Sec-Butylbenzene 5 ND ND

1,3-Dichloruhenzene 5 ND ND

p-Isopropyltoluene 5 ND ND

1.4-Dichlorobenzene 5 ND ND

1,2-Dichlorohenzene 5 ND ND

n-Butylbenzene 5 ND ND

1.2,4-Trichlorohenzene 5 ND ND

1.2-Dihromo-3- Chlurnrupane

5 ND ND

Hexachlorohutadiene 5 ND ND

Naphthalene 5 ND ND

1,2.3-Trichlorohenzene 5 ND ND


Acetonc - 20 ND ND

2-Butunone (MEK) 20 ND ND

Carhnn disulfide 20 ND ND

4-;Vlethyl-2-hentanone 1 I B I ?U ND ND

?-Hexanune ?0 ND ND

Vinyl acetate 50 ND ND

MTBE 5 ND ND

=Not Detected (at the specified limit); tamed with a higher dilution analysis,




Phone (213) 888 -0728

Fax (213) 888 -1509

05 -04 -1998


Project: TADCO Project Site: 363 W. 133rd Street, Los Angeles Date Sampled: 04 -28 -1998

Matrix: Water Date Received: 04 -28 -1998

Batch No.: CE04 -GW1 Date Analyzed: 05 -04 -1998

EPA Method 8015M(Gasoline) Reporting Units: µg /L (ppb)

Sample ID Lab ID Gasoline Range TPH* Reporting Limit

Method Blank ND 50

MW -4 60472 -4 1,800 50

* Gasoline Range TPH are hydrocarbons in the range of C4 - C12.




Phone (213) 888 -0728 Fax (213) 888 -1509

05 -04 -1998



Project: TADCO Matrix: Water Lab Sample ID: V0473 -4

Batch No: 0429 -VOCW Date Analyzed: 04 -29 -98

L MS /MSD Report Unit: ppb

Compound MB Conc.

Spike Conc.

MS MSD MS %Rec.

MSD %Rec.


%r-Rec

Accept. Limit

1.1- Dichloroethene

ND 20 19.4 20.5 97.0 103 5.5 30 70 -130

Benzene ND 20 18.7 20.4 93.5 102 8.7 30 70 -130

Trichlorn- ethene

ND 20 22.7 26.0 114 130 13.6 30 70 -130

Toluene ND 20 19.4 21.7 97.0 109 11.2 30 70 -130

Chlorobenzene ND 20 20.5 23.0 103 115 11.5 30 70 -130



1.1- Dichloroethene 23.7 20 119 80 -12(1

Benzene 18.3 20 91.5 80 -120

Trichloro- ethene 20.4 20 102 80 -120

Toluene 19.5 20 97.5 80 -120

Chlorobenzene 19.9 20 99.5 80 -120

ND: Not Detected (at the specified limit)

0=7-t Southland Technical Services, Inc.

Environmental Laboratories 7801 Telegraph Road, Suite L


Phone (213) 888 -0728 Fax (213) 888-1509

05-04-1998

EPA 8015M (Gasoline) Batch QA /QC Report


Project: TADCO Matrix: Water Lab Sample ID: LCS

Batch No: CE04 -GW1 Date Analyzed: 05 -04 -98

LCS/LCSD Report Unit: ppb

Compound MB Spike Conc.

LCS LCSD LCS %Rec.

LCSD %Rec.


%Rec Accept. Limit

Gasoline ND 1000 1036 850 104 85.0 19.7 30 70 -130

Southland Technical Services Environmental Laboratories, Inc.

CHAIN OF CUSTODY RECORD Lab Jo

Client Name

C;cFY ((t'n0..___ i/t- l 1e....-t f . (.\ ^(-\ C--41._ _ F --R. lA

Analyses

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Project No./Name

L. e- -k (A \`-- Project Site

J 1 a l...S% I 7. rz,, GA o N o

Client Sample ID

Sample Collection Matrix Type

Sample Preserve

No., type' &

container

Ñ

w Date lime

N'tw'° \ y'1g .3cent410 'S r,-VVA-

M 1.0 -w 22. y1a e 3 ac(V\« i _ Y, tiba x 7 --

WI T,-.) - -1> Ì 11fi 7 ss IP-0 3 x tió a -7c 1( i V'S ci 1)3000 t-60 ,? Y. UD 4 -i< ?<-

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Relinquished By Company v.tl r... L. Al, F Date `/ ,4P,

Time s Retetvzi By/ Company

1 °-75- S-7S *Sample Conti A=Air Bag G=Glass Conl ST=Steel Tub( Relinquished By 'Company Date Time Received By Company

STS E. L,

7801 Telegraph Road, Suite J.


Tel: 213 -888 -0728

Fax: 213 -888 -1509

VOte: Samples are discarded 30 days after results are reported

made. Hazardous samples will be returned to client or di:

Distribution: WHITE with report, YELLOW to STS, PINK to coi


CHAIN OF CUSTODY RECORD Lab Jot

Client Name

,1 =1A x111 L, á ( , -n-(_ k .,-,5; neQr,, Analyses Requested 1

Address

) -7 ' -- S k Pr-AL C i- -4 44 E >4

01

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M. /Me ----( lit.) Fax ii /Y1'1 Project No./Name

Ti4 Project Site

Client Sample ID

Sample Collection - size of container

^/\ \Ai - ' I g t!! JtS¡ IMIIIIMI 1 x VD A II VAI C

__ Relinquished By Company

/1"1-1.,,,r--4- S Date/ y / ß Date

TirT ' Time

Received By Compaq

/^P -V- _ ST Reeceived By Company

'Sample Conta A=Air Bag

G =Glass Cont. ST =S tee! Tube Relinquished By Company

STS E. L.



Tel: 213 -888 -0728

Fax: 213 -888 -1509

Ote: Samples are discarded 30 days after results are reported

made. Hazardous samples will be returned to client or dis

Distribution: WHITE with report, YELLOW to STS, PINK to cou

__' IBIT 8

May 14, 1997

Mr. Patrick Rendon, Esq. Calvino & Rendon 200 Oceangate, Suite 430 Long Beach, CA 908024323

RE: Draft Project Report for 363 West 133rd Street, Los Angeles, Ca.

Dear Mr. Rendon:

; 1\irD)\\+/

Please find enclosed the draft project report titled "Subsurface Environmental Investigation of Soil at 363 West 133rd Street, Los Angeles, California." The draft has been provided for discussion purposes only.

Please contact me at (714) 833 -3667 if you have any questions regarding this project.

Sincerely,


Michael Marello, R.G. Vice President Principal Geologist

17895 Sky Park Circle, Suite E, Irvine, CA 92614 4 Ted 794/833-3667 Fax 7!4/833-3463

CONFIDENTIAL ATTORNEY/CLIENT PRIVILEGE

MAY 14, 1997

DRAFT PROJECT REPORT

SUBSURFACE ENVIRONMENTAL INVESTIGATION OF SOIL AT:

363 WEST 133RD STREET LOS ANGELES, CALIFORNIA

PREPARED FOR:

MR. PATRICK RENDON, ESQ. CALVILLO & RENDON

200 OCEANGATE, SUITE 430 LONG BEACH, CA 90802-4323

PREPARED BY:

AQUA SCIENCE ENGINEERS, INC. 17895 SKY PARK CIRCLE, SUITE. E

IRVINE, CA 92714

Former TADCO Site, 363 West t33r[Strect,Los Angeles, Ca ASE Project tNlo. 2991

TABLE OF CONTENTS

SECTIONS PAGES

1.0 INTRODUCTION 1

2.0 SITE SETTING AND PROJECT BACKGROUND 1

2.1 Site Setting 1

2.2 Previous Environmental Investigations 1

3.0 GEOLOGY AND HYDROLOGY 2

3.1 Regional Geology and Hydrology 2

3.2 Subject Site Geology and Hydrology 2

4.0 INVESTIGATIVE METHODS 4

4.1 Drilling Methods 4

4.2 Soil Sample Collection 4

4.3 Chemical Analysis Methods for Soil 4

5.0 INVESTIGATIVE RESULTS 5

5.1 Chemical Analysis Results for Soil 5

6.0 CONCLUSIONS 6

7.0 REPORT LIMITATIONS 7

TABLES

TABLE 1: Summary of Chemical Analysis Data for Soil

FIGURES

FIGURE 1: USGS Topographic Site Location Map 9

FIGURE 2: Site Plan Showing Soil Boring Locations 10

APPENDICES

APPENDIX I:

APPENDIX II:

Soil Logs for Borings B28 and B29

Cal -EPA Certified Laboratory Reports and Chain -of- Custody Document

May 1997 Aqua Science Engineers Inc.

1.0 INTRODUCTION

ASE Project No, 2992

The following report documents the methods and results of a subsurface environmental

assessment of soil conducted by Aqua Science Engineers, Inc., (ASE) at 363 W. 133rd Street,

Los Angeles, California (former TADCO site, Figures 1 and 2). ASE was retained by Mr.

Patrick Rendon, Esq., to perform the assessment. The purpose of the assessment was to further

investigate the extent and magnitude of volatile organic chemical contamination in soil at the

former TADCO site. Field work for this investigation was conducted on April 10, 1997.

Previous investigative work conducted by ASE in the subject area is documented in the

following reports:

September 1, 1996, Soil Contamination Assessment Investigation Report for B.I.G./TADCO Site Located at 363 West 133rd Street, Los Angeles, California

May 6, 1996, Subsurface Environmental Investigation of Soil at 13255 South Broadway,.

Los Angeles California

July 31, 1996, Environmental Assessment of Soil Surrounding the Removed Underground Chemical Storage Tanks at the Former TADCO Facility, 363 133rd Street, Los Angeles,

California

November 6, 1996, Demolition of Septic Tank System at the Former TADCO Site,

363 West 133rd Street, Los Angeles, California

2.0 SITE SETTING AND PROJECT BACKGROUND

2.1 Site Setting

The former TADCO site is an industrial property occupying an area of approximately one -half

acre at 363 West 133rd Street, approximately 1,800 feet south of El Segundo Boulevard and

2,000 feet east of Interstate 110 (Figure 1). The former TADCO site is bounded on the north and

east by industrial properties, on the south by 133rd Street, and on the west by LA Industrial

Service /Standard Metals at 378 West l 33rd Street. All building structures at the former TADCO

site have been removed. The surface of the site has been paved with concrete.

2.2 Previous Subsurface Environmental investigations

Previous subsurface environmental investigations have been conducted in relation to

contamination discovered at the TADCO site by Environmental Resolutions, Inc., (ERI) and

ASE. A relatively wide variety of chemical contaminants were discovered in soil beneath the

May 1997 Aqua Science Engineers, Inc.

1

Former TADCO Site, 363 West 1 33rd Street, Los Angeles Ca ASE Project No. 3992

TADCO site by these investigations. In particular, relatively high concentrations of acetone

were detected in soil samples collected between 10 and 45 feet below the ground surface (BGS)

at the TADCO site. Concentrations of petroleum hydrocarbons and volatile organic compounds

(halogenated and non -halogenated) have also been detected in soil to depths of 45 feet BGS.

Information regarding pervious investigations are contained in the reports referenced above.

3.0 GEOLOGY AND HYDROLOGY

3.1 Re ional Geolo and H drology

The subject site is located near the southwestern end of the Rosecrans Hills near the eastern

boundary of the Southwestern Block of the Los Angeles Basin. The Rosecrans Hills are the most

prominent surface expression of the Newport -Inglewood Uplift in the subject site vicinity. The

Newport -Inglewood Uplift has been reported to act as a barrier to groundwater flow in deep

confined aquifers underlying the region. The subject site is also located within the Rosecrans Oil

Field. The occurrence of petroleum in the Rosecrans Oil Field is associated with stratigraphie

and structural traps.

The subject site is also located near the eastern edge of the West Coast Hydrologic Basin which

extends south -southwest from the Newport -Inglewood Fault Zone to the Santa Monica Bay, and

north -northwest to the Ballona Escarpment and Baldwin Hills. The shallowest known regional

aquifer beneath the subject area is reported to be the Gage Aquifer located approximately 150

feet BGS. Based on the information contained in Department of Water Resources Bulletin No.

104. Regional deep groundwater flow in the vicinity is generally south -southwest.

3.2 Subject Site Geology and Hydrology

The 1964 Inglewood, California Quadrangle 7.5- minute U.S.G.S series topographic map

indicates that the subject site is located on a plateau on the southeastern side of the Rosecrans

Hills at a ground surface elevation of approximately 125 feet AMSL (Figure 1). A swale, or

drainage depression, appears to extend from north to south through the middle of the former

TADCO site. The drainage depression appears to receive surface waters from areas north and

west of the swale. Surface waters apparently flow towards the south to 133rd Street through the

drainage depression.

May I 997 Aqua Science Engineers, Inc.

Former TADCO Site, 363 West 133rd Street, Los Angeles, Ca _ASE Project No. 2992

Los Angeles County well number 1408E is located on the corner of 122nd Street and Berendo

Avenue, approximately 5,400 feet northwest of subject site. According to information provided

by the County of Los Angeles Department of Hydrologic Records, the well had a depth to

groundwater surface of 166.5 feet below top of well casing on May 15, 1994. The top of well

casing elevation was 126.0 feet AMSL. Therefore, the groundwater surface elevation in the well

was 40.5 feet below mean sea level (BMSL). The County of Los Angeles Department of Public

Works Coastal Plain Deep Aquifer Groundwater Contour Map for Fall 1989 shows that deep

groundwater in the vicinity of the subject site flows towards the south to southwest.

The apparent native soil types encountered during drilling by ASE beneath the subject area

consisted primarily of fine sand, silty fine sands, sandy silts, and some silt and clay. What

appears to be artificial fill has encountered beneath the subject area to depths between

approximately 9 feet and 15 feet BGS in several borings. The artificial fill contains concrete,

asphalt, glass, brick, tile and wood debris, and appears to encompass the northern 3/4 of the

subject site.

Water- saturated soils are encountered at depths between 43 and 45 feet BGS beneath the site. A

thin water -saturated zone has been encountered between 18 and 23 feet BGS in borings drilled in

the northern portion of the site. The direction of the shallow groundwater flow, and the aerial

extent of the water -bearing zones, have not been determined by this investigation or previous

investigations conducted by ASE.

N/1 ay 1997 Aqua Science Engineers, Inc.

Former TADCO Site 363 West 133RLStreet, Los Afiseles, Ca

4.0 INVESTIGATIVE METHODS

4.0 Drilling Methods

ASE Project N. 2993

Field activities for this investigation performed by ASE at the former TADCO site were

conducted on April 10, 1997. The locations of the soil borings drilled by ASE are indicated on

Figure 2. All drilling and soil sampling activities were directly supervised by a California

Registered Geologist employed by Aqua Science Engineers, Inc.

Soil borings B -28 and B -29 were drilled on April 10, 1997, using a CME -75 truck -mounted drill

rigs equipped with 8.25 -inch diameter continuous flight, hollow stem auger. These borings were

drilled to 45 feet BGS. All drilling equipment was steam cleaned before use. Soil cuttings from

boring B -28 and B -29 were placed in 55 gallon DOT class 17H steel drums and stored on -site.

The borings were backfilled with bentonite chips.

4.2 Soil Sample Collection

Split sets of soil samples were collected in borings B -28 and B -29 using a 1.5 inch inside

diameter split spoon sampler holding pre -cleaned brass sample tubes. The split spoon sampler

was washed with a non -phosphate detergent and water solution, then rinsed with clean tap water

between sample collections. The sampler was driven into undisturbed soil in advance of the

hollow stern auger using a hydraulic hammer. Soil samples were collected at five foot depth

intervals between five feet and 45 feet BGS. One set of soil samples was secured with aluminum

foil, plastic end -caps and tape. The secured samples were logged on a chain -of- custody form and

then placed in an ice chest for temporary cold storage. Soil from the second tube of each sample

interval was placed in Zip- LocT "t plastic bags and examined for soil classification, general

moisture content and obvious odor or staining. Soil observations were recorded on the soil

boring logs (Appendix I).

4.3 Chemical Analysis Methods for Soil

Soil samples collected from borings B -28 and B -29 were submitted to Southland Technical

Service Environmental Laboratory, Inc., (STS) for chemical analysis. STS is certified by Cal-

EPA to perform the chemical analyses used for this project (certificate #1986). All of the

samples collected from boring B -28 and B -29 were analyzed for volatile organic compounds

(VOC) using EPA method 8260 (GC /MS). ASE requested analysis for seven additional volatile

May 1997 Aqua Science Engineers, .inc.

,1

Former TADCO Site, 363 West 133rd Street, Los Angeles, Ca ASE Project No. 2992

organic compounds not included in the normal list of EPA 8260 compounds. These compounds

were detected in soil samples from previous investigations by EPA method 8240 analysis.

5.0 INVESTIGATIVE RESULTS

5.1 Chemical Analysis Results for Soil

A summary of the chemical analyses results for the soil samples collected by ASE from borings

B -28 and B -29 is provided as Table 1 attached. The Cal -EPA certified laboratory report and

chain -of- custody document are provided as Appendix II.

The chemical analyses conducted on the soil samples from borings B -28 and B -29 using EPA

method 8260 detected the following volatile organic compounds:

Benzene n- Butylbenzene sec -Butylbenzene tert -Butylbenzene ci s -1,2- Dichloroethene trans -1,2- Dichloroethene Ethylbenzene Isopropylbenzene p- Isopropyltoluene Napthalene n- Propylbenzene Toluene Trichloroethene 1,2,4- Trimethylbenzene 1,3,5- Trimethylbenzene Vinyl Chloride m +p- Xylene o- Xylene

The soil samples collected from boring B -28 generally contained a greater number and higher

concentrations of volatile organic compounds then the samples from boring B -29. Of the

compounds listed above, cis- l,2- dichloroethene, naphthalene, toluene, trichloroethene and vinyl

chloride were the only compounds detected in the samples from boring B -29. Vinyl chloride

was not detected in any of the samples from boring B -28.

Nlay I 9')7 Aqua Science Engineers, Inc.

5

Former TADCO Site, 363 West 133rd Street, Los Angeles, Ca

6.0 CONCLUSIONS

ASE Project No. 2992

Based on the findings of this assessment, and previous assessments, Aqua Science Engineers

concludes the following regarding subsurface environmental conditions at 363 West 133rd Street

( TADCO):

The apparent native soil types encountered during drilling by ASE beneath the subject area

consisted primarily of fine sand, silty fine sands, sandy silts, and some silt and clay. What

appears to be artificial fill is present in some areas beneath the subject area to depths between

approximately 9 feet and 15 feet BGS. Artificial fill was identified at the location of boring

B -29 from the surface to approximately eight feet BGS. Artificial fill was not identified at

the location of boring B -28.

Groundwater was encountered between 43 and 45 feet BGS beneath the site. A wet zone was

encountered in boring B -28 between approximately 18 and 19 feet BGS.

Of the two soil borings drilled for this investigation, soil samples from B -28 generally

contained the greatest number and highest concentrations of detected volatile organic

compounds.

Previous reports prepared by ASE identified at least two potential sources of the relatively

high levels and wide range of chemical contamination discovered in soil beneath the site,

The potential sources were identified as the septic system used by TADCO and a ±12 foot

deep concrete pit located on the LA Industrial Services /Standard Metals site. Waste

chemicals placed in the septic system (drain pipes, septic tank and leach line) could

potentially impact soil beneath the site. The concrete pit on the LA Industrial

Services /Standard Metals site is identified as a "briquetter" in a Phase I report prepared by

NATEC, Inc. Waste chemicals placed in the pit, or leaked from metal objects crushed in the

pit, could potentially impact soil beneath the site, In addition to these sources, potential

surface spills of chemicals at either the TADCO site or the LA Industrial Services /Standard

Metals site could have possibly impacted soil beneath the former TADCO site.

Fourteen of the 18 volatile organic compounds detected in the soil samples collected for this

investigation have been detected in soil samples collected during previous investigations at

the TADCO site. Eight of the volatile organic compounds were also detected in liquid /sludge

samples collected from within a septic tank former located at the site (see ASE November 6.

May 1997 Aqua Science Engineers, ¡nc.

6

Former TADCO Site, 363 West I 33rd Street, Los Mercies Ca ASE Project No. 2992

1996 report). These chemicals were benzene, toluene, xylene, p- isoproyltoluene,

naphthalene, n- propylbenzene, 1,2,4 -trimethylbenzene and 1,3,5 -trimethylbenzene and

xylene.

7.0 REPORT LIMITATIONS

The project described in this report was intended to further investigate the presence of volatile

organic chemical contamination in soil beneath the former TADCO site. The results of the

chemical analysis conducted for this project represent conditions at the times and

locations /depths at which the soil samples were collected, for the chemical parameters specified

in the analytical methods employed. The chemical analysis conducted during this project were

performed by independent Cal -EPA Certified Laboratories. The independent laboratories are

solely responsible for the contents and conclusions of their reports.


Michael lo, R.G. Vice "i nt

Senior G > :.j

May 1997

David M. Sc R.E.A. Presi

Senior Civil Erneer


7

ForillerTADCO Site, 363 West 133rd Street, Los Angeles, Ca ASE_Proiect No, 2992

TABLES

May 1997 Aqua Science Engineers inc.

TABLE ]

Summary of Chemical Analysis Data For Soil Samples Collected from Borings B -28 and B -29 at the Former TADCO Site, 363 West 133rd St)

EPA Method 8260 Compounds and Additional GC/MS Compounds - Concentrations in p.g /kg (Parts Per Billion)

Boring Number

13-28

Sample (f1) Betvene

n-Butyl- bcnzeng

sec-Butyl- bcnzeng

lert-Butyl- bcnzene_IX:E^__IrE

ND

ND

200

ND

ND

cis-1,2

ND

ND

ND

53

ND

Irans-f,2

ND

ND

ND

32

ND

Ethyl- bertzene

ND

ND

11,600

150

ND

Isopropyl- benzene

ND

ND

7,540

76

ND

p-Isoproyt- toluene

ND

ND

4,800

55

ND

NaDthalene

ND

ND

11,800

100

ND

n-Propyl benzene

ND

ND

14,100

120

ND

3010enc

74

188

233

83

13

TCE 1,2,4-Trim ethy

henzene I,3,5-Tri

benz

t

t

6

t

,Depth

5

10

15

20

25

ND

ND

1,000

60

ND

ND

ND

3,040

46

ND

ND

ND

5,000

ND

ND

ND

ND

200

62

ND

ND

ND

12,000

476

ND

30 ND ND ND ND 162 18 ND ND ND ND ND 8 27 ND t

35 ND 26 104 ND 83 636 8.5 25 28 18 20 970 1,560 ND !

40 ND ND ND ND 8.4 ND ND ND ND ND ND 224 ND ND t

45 ND ND ND ND 118 85 ND ND ND ND ND ND 187 ND t

B-29 5 ND ND ND ND ND ND ND ND ND ND ND 28 ND ND t

10 ND ND ND ND 20 ND ND ND ND 66 ND 170 ND ND t

15 ND ND ND ND 41 ND ND ND ND 17 ND 7.4 ND ND t

20 ND ND ND ND 47 ND ND ND ND ND ND 35 ND ND t


30 ND ND ND ND 103 ND ND ND ND ND ND 16 7.8 ND t

35 ND ND ND ND 192 ND ND ND ND ND ND 18 32 ND t


45 ND ND ND ND 120 ND ND ND ND ND ND 6.1 150 ND t

Method Detection 5 S 5 5 5 5 5 5 5 5 5 5 5 5

Level (MDL)

O

DCE = Dichloroethene TCE = Trichloroeth en e

ND = not detected at MDL

Former TADCO Site, 363 West 133rd Street. Los Angeles, Ca

FIGURES

ASE Project No 2992

May 1997 Aqua Science Engineers Inc.

1

,,

a ' L

SITE LOCATION

zr,

.,t; çKlöÿ, - - tl

'''.1.!... ̀,,, :i, ` :.3 c

, l _ . lit; t

.0.!G' . . -.1.}.//Parkr;. . cer_i-. A / i . ' _ r^ '

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.

-{ÓO Ìo7a- án , _ = 'r:.. : ti '1.\1l1ll.Ná r

.°us».r- h,ià.ÓÓ

SCALE 1: 24.000 (1" = 2 000')

n 1000 000n 3000 4000 5000 6000 7000 8000

Reference:inglewood Quadrangle,Los Angeles County U.S.G.S. 7.5 Minute Series (Topographic) 1964, Photorevised 1981

FIGURE 1

USGS Topographic Site Location Map

Site: Former T.A. Davies Company 363 West 133rd Street Los Angeles, California

Former Tadco Western Boundary

i

m

-i

B-28 I

Former Building Location

Former Above Ground Tank Far

Location

Former Concrete Dock Location

mos

T

Approx. Former Location of Septic Tank

(6 ft. x 8 ft. x 5 ft.)

Former T.A. Davies Co. Site

363 West 133rd Street

B-29

LEGEND

45 foot depth soil boring location and

deignation. Borings drilled on 4/10/97

SCALE 1:240 (1" = 20') 0 10 20 30 40 50 ft.

Former Tadco Site Eastern Boundary Fence Removed

Parking Area for Adjacent Building

10

'.pproximate Locaton of i

Large Concrete Pit i

LA Industrial Service I

Standard Metals 378 West 133rd Street

(Metal Scrap Yard)

Sidewalk

WEST 133RD STREET

FIGURE 2

Site Plan Showing Former Building Features

and Locations of Soil Borings B -28 and B -29

Site; Former T.A. Davies Co. Site.

363 W. 133rd Street Los Angeles, California

Former TADCO Site, 363 West 133rd Street, Los An;eles. Ca ASE Project No. 2992

May 1997

APPENDIX

SOIL LOGS FOR BORINGS B -28 AND B -29

Aqua Science Engineers inc.

ISOIL BORING LOG AND MONITORING WELL CONSTRUCTION DETAILS I BORING NO. B -28

Project Name: Former TADCO Site 7 Project Location: 363 W. 133rd St., Los Angeles Page 1 of 2

Driller: ABC Liovin Type of Rig: CME 75 Type and Size of Auger: 8" O.D. H.S.

Logged By: M. Marello, R.G. #5339 Date Drilled: 4/10/97 Checked By:

WATER AND WELL DATA Total Depth of Well Completed: NA

.

Depth of Water First Encountered: 44 -45 ft. Well Screen Type and Diameter: NA

Static Depth of Water in Well: NA Well Screen Slot Size: NA

Total Depth of Boring: 45 ft. Type and Size of Soil Sampler: 1.5" I.D. Split Spoon

a) u.

O

WELL\BORING ORING

o o

.

m

: . _ k4 ' _ iv 0

u-

a Q

DESCRIPTION OF LITHOLOGY

z a) ç

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cC O

á ü-

E CI

standard classification, texture, relative moisture,

density, stiffness, odor -staining, USCS designation.

And With Some Trace

(40 -50 %) (40 -25 %) (25 -10 %) (10 -0 %)

0

5

1 0

1 5

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Silt, some fine sand (ML SM), dark olive gray to black,

slightly moist, no odor

Silt with some clay (ML -CL), olive -gray to black,

moist, heavy dary oil content visible

Wet zone 18 -19 ft.

Silt, some fine to med. sand, trace clay (PEAL SPA),

olive -gray, slightly moist, slight sout (petroleum ?)

odor

1i

s , /a 5

z + 3

mil 3

s

a

ASE Form 20A AQUA SCIENCE ENGINEERS, INC.

SOIL BORING LOG AND MONITORING WELL CONSTRUCTION DETAILS BORING NO. B -28

Project Name: Former TADCO Site Project Location: 363 W. 133rd St. Los Angeles Page 2 of 2


Logged By: M. Marello, R.G, #5339 Date Drilled: 4/10/97 Checked By:

á1 a_

ç -5 m a

WELL\BORING DETAIL

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SO UROCK SAM L. DATA , DESCRIPTION OF LITHOLOGY

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moist, slight odor

4 l. 8

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slightly moist, slight odor

Fine sand, trace silt (SP), pale olive -gray,

moist, slight odor

Water- saturated soil encountered between 44 and 45 ft.

Fine sand, some silt (SP), pale olive -gray,

water saturated, slight odor

` 12 L. 14

4 0 lox 10 ' ...--4- 17

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ASE Form 20B AQUA SCIENCE ENGINEERS, INC.

SOIL BORING LOG AND MONITORING WELL CONSTRUCTION DETAILS BORING NO. B -29

Project Name: Former TADCO Site Project Location: 363 W. 133rd St., Los Angeles Page 1 of 2


Logged By: M. Marello, R.G. #5339 Date Drilled: 4/10/97 Checked By:

WATER AND WELL DATA Total Depth of Well Completed: NA

Well Screen Type and Diameter: NA Depth of Water First Encountered: 43 -44 ft.

Static Depth of Water in Well: NA Well Screen Slot Size: NA

Total Depth of Boring: 45 ft. Type and Size of Soil Sampler: 1.5" I.D. Split Spoon

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densit stiffness odor- stainin. USOS desi.nation,

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(40 -50% (40 -25 %) (25 -10 %) (10 -0 %)

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dark gray to black, concrete debris, no odor

slightly moist

Clay and silt (CL -ML), dark brown -gray to olive -gray,

moist, slight odo r

Med, to fine sand and silt, some clay (SM -SC),

olive- brown, very moist, no odor

Silt and clay (ML -CL), mottled olive -tan and rust,

slightly moist, some black organic "specks",

no odor

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ASE Form 20A AQUA SCIENCE ENGINEERS, INC.

SOIL

BO

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Formerr4DCO Site 363 A t 13? d St °ct Los Ankles Ca _ ASE Project ufo. 2992

APPENDIX I I

CAL -EPA CERTIFIED LABORATORY REPORT FOR SOIL ANAYSES AND CHAIN OF CUSTODY DOCUMENT FOR SAMPLES

COLLECTED FROM BORINGS B -28 AND B -29

May 1997 Aqua Science Engineers inc.


7801 Telegraph Road, Sude J


Phone (213) 888 -0728 Fax (213) 888 -1509

04 -28 -1997

Mr. Mike Marello Aqua Science Engineers 17895 Sky Park Circle, Suite E. Irvine, CA 92714

Project: TADCO Project Site: 363 W. 133rd Street, Los Angeles Sample Date: 04 -10 -1997 Lab Job No.: G70419

Dear Mr. Marello:



EPA 8260 (Volatile Organics by GC /MS)

All analyses have met the QA /QC criteria of this laboratory.

The sample(s) arrived in good conditions (i.e., chilled, intact) and with a chain of custody record attached.

STS Environmental Laboratory is certified by CA DEIS (Certificate Number 1986). Thank you for giving us the

opportunity to serve you. Please feel free to call me at (213) 888 -1128 if our Laboratory can be of further service to

you.

Sincerely,

tom v/- l , - Roger Wang, Ph. D. Laboratory Director

Enclosures

This cover letter is an integral pert of this analytical repo-it.


7801 Telegraph Road, Suite J


Phone (213) 888 -0728 Fax (213) 888 -1509

04 -28 -1997



Matrix: Soil Date Received: 04 -10 -1997

Batch No.: 0413VOCS1 Date Analyzed: 04 -13 -1997

EPA 8260, Volatile Organic Compounds by GC /MS (Page 1 of 3) Reporting Unit: ug /kg (ppb)

LAB SAMPLE I.D. G0419-1 G0419-2 G0419-3 G0419-4

CLIENT SAMPLE I.D. B28-5' B28-10' B28-15' B28-20'

DILUTION FACTOR 1 1 50 2

COMPOUND MDL MB

enzene 5 ND ND ND 1,000 ND

Bromobenzene 5 ND ND ND ND ND

: romochlorornethane .5 ND ND ND ND ND

: romodichloromethane 5 ND ND ND ND ND

: romoform 5 ND ND ND ND ND

I: romomethane 5 ND ND ND ND ND

n-Butylbenzene 5 ND ND ND 3,040 60

sec-Butylbenzene 5 ND ND ND 5,000 46

ert-Butylbenzene 5 ND ND ND 200 ND

Carbon tetrachloride 5 ND ND ND ND ND

Chlorobenzene 5 ND ND ND ND ND

Chloroethane 5 ND ND ND ND ND

2-Chloroethyl vinyl ether 5 ND ND ND ND ND

Chloroform 5 ND ND ND ND ND

Chloromethane 5 ND ND ND ND ND

2-Chlorotoluene 5 ND ND ND ND ND

i -Chlorotoluene 5 ND ND ND ND ND

I ibromoehloromethane 5 ND ND ND ND ND

1,2 Dihromo-3 Chloropropane

5 ND ND ND ND ND

1,2-Dibromoethane 5 ND ND ND ND ND

Dibromomethane 5 ND ND ND ND ND

1,2-Dichlorobenzene 5 ND ND ND ND ND

1,3-Dichlorohenzene 5 ND ND ND ND ND


Dichlorodifluoromethane 5 ND ND ND ND ND




Phone (213) 888 -0728 Fax (213) 888 -1509

4 -28 -1997

Client: Aqua Science Engineers Lab Job No.: G70419 Project: TAD CO Project Site: 363 W. 133rd Street, Los Angeles Date Sampled: 04 -10 -1997 Matrix: Soil Date Received: 04 -10 -1997 Batch No.: 0413VOCS1 Date Analyzed: 04 -13 -1997

EPA 8260, Volatile Organic Compounds by GC /MS (Page 2 of 3)

Reporting Unit: pg /kg (ppb)

LAS SAMPLE I.D. G0419-1 G0419-2 G0419-3 G0419-4



COMPOUNDMDL MDL MB

1,1-Dichloroethane 5 ND ND ND ND ND


1,1-Dichloroethene 5 ND ND ND ND ND

cis-1,2-Dichloroethene 5 ND ND ND ND 53

trans-1,2-Dichloroethene 5 ND ND ND ND 32

1,2-Dichloropropane 5 ND ND ND ND ND


2.2-Dichloropropane 5 ND ND ND ND ND

1,1-Dichloropropene 5 ND ND ND ND ND

cis-1,3-Dichloropropene 5 ND ND ND ND ND

'trans-1,3-Dichloropropene 5 ND ND ND ND ND

Ethylbenzene 5 ND ND ND 11,600 150

Hexachlorobutadiene 5 ND ND ND ND ND

lsopropylbenzene 5 ND ND ND 7,540 76

p-Isopropyltoluene 5 ND ND ND 4,800 55

Methylene-chloride 5 ND ND ND ND ND

Naphthalene 5 ND ND ND 11,800 100

n-Propylbenzene 5 ND ND ND 14,100 120

tyrene 5 ND ND ND ND ND

1,1 .1 ,2-Tetrachloroethane 5 ND ND ND ND ND

1,1,2,2-Tetrachloroethane 5 ND ND ND ND ND

Tetrachloroethene 5 ND ND ND ND ND

3




Phone (213) 888 -0728 Fax (213) 888-1509

4 -28 -1997




Batch No.: 0413VOCSI Date Analyzed: 04 -13 -1997


Reporting Unit: ,ug /kg (ppb)


CLIENT SAMPLE I.D. B28-5' B28-10' 828-15' B28-20'


COMPOUNDMDL MDL MB

Toluene 5 ND 74 188 233 83

1,2,3-Trichlorobenzene 5 ND ND ND ND ND


1,1,1-Trichloroethane 5 ND ND ND ND ND


Trichloroethene 5 ND ND ND 200 62

Trichlorofluoromethane 5 ND ND ND ND ND

1,2,3-Trichloropropane 5 ND ND ND ND ND

1,2,4-Trimethylbenzene 5 ND ND ND 12,000 476

1,3,5-Trimethylbenzene 5 ND ND ND 640 96

Vinyl Chloride 5 ND ND ND ND ND

m+p-Xylenes 5 ND ND ND 3,470 146

o-Xylene 5 ND ND ND 1,050 ND


Acetone 50 ND ND ND ND

2-Butanone (MEK) 50 ND ND ND ND ND

Carbon disulfide 50 ND ND ND ND ND

4- Methyl -2- pentanone (MIBK)

50 ND ND ND ND ND

2-I-lexanone 50 ND ND ND ND ND

Vinyl Acetate 50 ND ND ND ND ND

Methyl t -butyl ether (MTBE)

5 ND ND ND ND ND

MDL= Method Detection Limit; MB= Method Blank; ND =Not Detected(Relow MDL); NA =Not Analyzed

4




Phone (213) 888 -0728 Fax (213) 888 -1509

l

04 -28 -1997




Batch No.: 0413 VOCS 1 Date Analyzed: 04 -13 -1997


Reporting Unit: ,ug /kg (ppb)

LAB SAMPLE I.D. G0419-5 G0419-6 G0419-7 G0419-8 G0419-9

CLIENT SAMPLE I.D. B28-25' B28-30' B28-35' B28-40' B28-45'

DILUTION FACTOR 1 1 1 1 1

COMPOUND MDL

Benzene 5 ND ND ND ND ND


Bromochloromethane 5 ND ND ND ND ND

Bromodichloromethane 5 ND ND ND ND ND

Bromoform 5 - ND ND ND ND ND

Bromomethane 5 ND ND ND ND ND

n-Butylbenzene 5 ND ND 26 ND ND

sec-Butylhenzene 5 ND ND 104 ND ND

tert-Butylbenzene 5 ND ND ND ND ND









Dibromochloromethane 5 ND ND ND ND ND

1,2-Dihromo-3- chloropropane

S ND ND ND ND ND




1,3-Dichlorohenzene 5 ND ND ND ND ND

1,4-Dichlorohenzene Dichloroditluoromethane

5 ND ND ND ND ND

5 ' ND ND ND ND ND

5




Phone (213) 888 -0728 Fax (213) 888-1509

4 -28 -1997






Reporting Unit: aug /kg (ppb)




COMPOUNDMDL MDL




cis-1.2-Dichloroethene 5 ND 162 83 8.4 118

trans-1,2-Dichloroethene 5 ND 18 636 ND 8.5



-Di chloropropane 5 ND ND . ND ND ND



trans-1,3-Dichloropropene 5 ND ND ND ND ND

Ethylhenzene 5 ND ND 8.5 ND ND


Isopropylbenzene 5 ND ND 25 ND ND

p-Isopropyltoluene 5 ND ND 28 ND ND


Naphthalene 5 ND ND 18 ND ND

n-Propylbenzene 5 ND ND 20 ND ND

Styrene 5 ND ND ND ND ND

1.1, 1 ,2-Tetrachloroethane 5 ND ND ND ND ND

1, 1,2 ,2-Tetrachloroethane 5 ND ND ND ND ND


6




Phone (213) 888 -0728 Fax (213) 888 -1509

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EPA 8260, Volatile Organic Compounds by GC /MS (Page 3 of 3) Reporting Unit: sg/kg (ppb)




COMPOUNDMDL MDL

Toluene 5 13 8 970 224 ND





1 richloroethene 5 ND 27 1,560 ND 187

l'richlorofluoromethane 5 ND ND ND ND ND


1,2,4-Trimethylbenzene 5 ND ND ND ND ND

1,3,5-Trimethylbenzene 5 ND ND 9.4 ND ND

Vinyl Chloride 5 ND ND ND ND ND

m+p-Xylenes 5 ND ND 15 ND ND

o-Xylene 5 ND ND ND ND ND


Acetone ND ND ND ND ND

2-Butanone (MEK) ND ND ND ND ND

Carbon disulfide ND ND ND ND ND

(4-Methyl-2-pentanone (MIBK)

ND ND ND ND ND

2-Hexanone ND ND ND ND ND

Vinyl Acetate ND ND ND ' ND ND

Methyl t-hutyl eiher (MTBE)

ND ND ND ND ND

MD.= Method Detection Limit; MB = Method Blank; ND =Not Detected(Below MDL); NA =Not Analyzed

7




Phone (213) 888 -0728 Fax (213) 888 -1509

04 -28 -1997

Client: Aqua Science Engineers Lab Job No.: G70419 Project: TADCO Project Site: 363 W. 133rd Street, Los Angeles Date Sampled: 04 -10 -1997



EPA 8260, Volatile Organic Compounds by GC /MS (Page 1 of 3) Reporting Unit: µg /kg (ppb)

LAB SAMPLE I.D. G0419-10- G0419-11 G0419-12 G0419-13 G0419-14



COMPOUND MDL

`Benzene 5 ND ND ND ND ND


13romochloromethane 5 ND ND ND ND ND


13romoform " 5 ND ND ND ND ND


n-Butylbenzene 5 ND ' ND ND ND ND

sec-Butylbenzene 5 ND ND ND ND ND

ert-Butylbenzene 5 ND

Carbon tetrachloride 5 ND ND ND

-Chloroethyl vinyl ether 5 ND ND ND ND ND

Chlorotorm 5 ND ND ND ND ND





1,2-Dibromo-3- chloropropane

5 ND ND ND ND ND





1,4-Dichlorobenzene .5 ND ND ND ND ND

Dichlorodií7uoromethane 5 ND ND ND ND ND

8



Montebello, CA 90640 Phone (213) 888 -0728

Fax (213) 888 -1509

4 -28 -1997









COMPOUNDMDL MDL




cis-1,2-Dichloroethene 5 ND 20 41 47 11

trans-1,2-Dichloroethene 5 ND ND ND ND ND






trans-1,3-Dichloropropene 5 ND ND ND ND ND

Ethylbenzene 5 ' ND ND ND ND ND


Isopropyibenzene 5 ND ND ND ND ND

p-Isopropyltoluene 5 ND ND ND ND ND


Naphthalene 5 ND 66 17 ND ND

n-Propylbenzene 5 ND ND ND ND ND

Styrene 5 ND ND ND ND ND



`retrachloroethene 5 ND ND ND ND ND

9




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Batch No.: 04 13 VOCS 1 Date Analyzed: 04 -13 -1997




CLIENT SAMPLE I.D. B29-5' 1329-10' B29-15' B29-20' B29-25'


COMPOUNDMDL MDL

Toluene 5 28 170 7.4 35 24

1,2,3-Trichlorobenzene 5 ND ' ND ND ND ND




Trichloroethene 5 ND ND ND ND ND

Trichlorofluoromethane 5 ND ND ND ND ND




Vinyl Chloride 5 ND ND 22 ND ND

m+p-Xylenes 5 ND ND ND ND ND






4-Methyl-2-pentanone (MIBK)

ND ND ND ND ND


Vinyl Acetate ND ND ND ND ND

Methyl t hutyl ether (?`JdTBE)

ND ND ND ND ND

MDL _Method Detection Limit: MB = Method Blank; ND =Not Detected(Below MDT .); NA =Not A n&y edt

10




Phone (213) 888 -0728 Fax (213) 888 -1509

04 -28 -1997



Batch No.: 0413 VOCS1 Date Analyzed: 04 -13 -1997


Reporting Unit: µg/kg (ppb)


CLIENT SAMPLE I.D. B29-30' B29-35' r B29-40' B29-45'


COMPOUND MDL MB

Benzene 5 ND ND ND ND ND


Bromochloromethane 5 ND ND ND ND ND


Bromoform 5 ND ND ND ND ND


n-Butylbenzene 5 ND ND ND ND ND

sec-Butylbenzene 5 ND ND ND ND ND

tert-Butylbenzene 5 ND ND ND ND ND










1,2-Dibromo 3

chloropropane 5 ND ND ND ND ND


Dihromomethane 5 ND ND ND ND ND



1,4-Dichlorobenzene 5 ND ND

ND

ND ND ND

ND ND

Dichlorodifluoromethane 5 ND ND

11




Fax (213) 888 -1509

4 -28 -1997




EPA 8260, Volatile Organic Compounds by GC /MS (Page 2 of 3) Reporting Unit: ug /kg (ppb)

LAB SAMPLE I.D. G0419-15 G0419-16 G0419-17 G0419-18 CLIENT SAMPLE I.D. B29-30' B29-35' B29-40' B29-45'


COMPOUNDMDL MDL MB




cis-1,2-Dichloroethene 5 ND 103 192 12 120

trans-1,2-Dichloroethene 5 ND ND ND ND 15

'1,2-Dichloropropane 5 ND ND ND ND ND





trans-i,3-Dichloropropene 5 ND ND ND ND ND

Ethylbenzene 5 ND ND ND ND ND


Isopropylbenzene 5 ND ND ND ND ND

p-Isopropyltoluene 5 ND ND ND ND ND


Naphthalene 5 ND ND ND ND ND

n-Propylbenzene 5 ND ND ND ND ND

$tyrene 5 ND ND ND ND ND

1,1,1,2-Tetrachtoroethane 5 ND ND ND ND ND



12

C417Dg.

Southland Technical Services, inc. Environmental Laboratories



Fax (213) 888 -1509

4 -28 -1997





Reporting Unit: ug /kg (ppb)

LAD SAMPLE I.D. G0419-15 G0419-16 G0419-17 G0419-18



COMPOUNDMDL ' MDL MB

Toluene 5 ND 16 18 49 6.1





Trichloroethene 5 ND 7.8 32 ND 150

Trichlorotluoromethane 5 ND ND ND ND ND




Vinyl Chloride 5 ND 17 12 ND 24

m+p-Xylenes 5 ND ND ND ND ND






4 Methyl-2 pentanone (MIBK)

ND ND ND ND ND


Vinyl Acetate ND ND ND ND ND

Methyl t butyl ether (MTBE)

ND ND ND ND ND

MDL = Method Detection Limit; MB= Method Blank; ND =Not Detected(Below MDL); NA =riot Anä1yzed

13




Phone (213) 888 -0728 Fax (213) 888 -1509

04 -28 -1997



Project: TADCO Matrix: Soil Lab Sampled ID: SS0413 -1


I. MS /MSD Report Unit: ppb

Compound Sample Conc.

Spike Conc.

MS MSD MS %Rec.

MSD %Rec.


%Rec Accept. Limit

1,1- Dichloro- ethene

ND 20 19.9 19.4 99.5 97 2.5 30 70 -130

Trichloro- ethene

ND 20 17.0 17.1 85 85.5 0.6 30 70 -130

Chloro- benzene

ND 20 16.7 17.4 83.5 87 4.1 30 70 -130

Benzene ND 20 17.3 17.8 86.5 89 2.8 30 70 -130

Toluene ND 20 16.6 17.7 83 88.5 6.5 30 70 -130



1,1- Dichloroethcnc 21.1 20 106 80 -120

Trichloroethene 18.3 20 91.5 80 -120

Chlorohenzene 19.0 20 95 80 -120

Benzene 19.1 20 95.5 80 -120

Toluene 18.2 20 91 80 -120

ND: Not Detected (at the specified limit).

1 n


CHAIN OF CUSTODY RECORD Lab J

Client Name

,°t l' ,.,_5, N.,: nTi Analyses Requested

Address/

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Fax # f.ss - S f ' Sampled By _ O 4Y1-^-1-"j- Project No./Name Project Site

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Client Sample ID


Sample Preserve

No., type* &

container Date Time

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Date

in 41 Time

/-2 iO Prn Rexived y Company

W,_ 5? S Received By Company

'Sample Co

A=Air Bag G=Glass C ST=Steel T Relinquished By Company D e Time

STS E. L.


Montebello, C/\ 90640

Tel: 213- 888 -0728

Fax: 213 -888 -1509

ote: Samples are discarded 30 days after results are repor

made. Hazardous samples will be returned to client or

Distribution: WHITE with report, YELLOW to STS, PINK to


CHAIN OF CUSTODY RECORD Lab,

Client Narce Analyses Requested

Address

R H al

Ñ

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Report Attention Phone #

Fax #

Sampled By

Project No. /Name Project Site

Client Sample ID


Sample Preserve

No., type* &

size of container Date Time

r, . ci ° -i 5' ` /,1'l7 Sc i c. t 1( ,3

I.; A_ di - t '-1 >> / X

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Relinquished By Company

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Dat /I

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'Sample C A =Air Bag G =Glass (

ST =Steel Relinquished By Company D e /lll Time Received By Company

STS E. L.



Tel: 213- 888 -0728

Fax: 213- 888 -1509

Ote: Samples are discarded 30 days after results are repo

made. Hazardous samples will be returned to client o

Distribution: WHITE with report, YELLOW to STS, PINK to

E?1IBIT 9

Documents

Nuance Communications, Inc. 1 Summary of Chemical Analyses Results for Soil Samples Collected in Area of Underground Storage Tank Farm at TADCO, 363 West 133rd Street,