Lockheed Martin Corporation - Environment, Safety & HealthBurbank Program Office2550 N. Hollywood Way, 3rd Floor Burbank, CA 91505-1055Program Office, Regulatory Affairs, and

Remediation Demolition Departments: 818-847'0256 (Facsimile)Business Office and Groundwater Department: 818-847-0170 (Facsimile) LOCKHEED MARTIN

' •V •' ) VIA Federal Expressf

APR 2 0 !RNH0398/089 WBS# DP

April 17,1998 j'-^AZA?>DOU3 t £ .

Mr. Girish Desai ,

New York State Department of Environmental Conservation (NYSDEC)SUNY at Stony BrookBuilding 40Stony Brook, New York 11790-2356

Dear Mr. Desai:

Subject: Submittal of Dry Well Excavation Work Plan forLockheed Martin CorporationGreat Neck, New York Facility, Site ID# 130045

Lockheed Martin Corporation (Lockheed Martin) submits to you the work plan for theexcavation and removal of the Dry Well Area Soil prepared by Integrated TechnicalServices for the above-referenced site as required in the OU-1 Administrative Order onConsent dated October 29, 1997. The intent of this work plan is to provide you details ofthe procedures for conducting the excavation and removal of the Dry Well Area Soil.

We will commence the field work once you have completed the review and approval ofthis work plan. If you have any questions regarding this submittal, please do not hesitateto contact Mr. Robert Gilbert of my staff at (818) 847-0210.

RH:EW:gcEnclosure

cc: R. Baldwin (H2M)D. Batrack (Tetra Tech)R. Becherer (NYDEC)T. Budzynski (ITS)

Sincerely,

C

R. N. HelgersonDirector

I:

<7 I

DRY WELL EXCAVATION

WOPOC PLAN

Lockheed Martin Corporation

365 Lakeville Road

Great Neck, New York

NYSDEC Site No. 130045

April 1998

Preparedfor:Lockheed Martin CorporationBurbank Program Office "Burbank, California - ;>

H2M ASSOCIATES, \555 Preakness Avenue BTotowa, New Jersey 07512 Engineers, Scientists, Planners

li^MGROUP

4.4.7 Community Air Monitoring Plan

During excavation activities, air monitoring for volatile organic compotmds andparticulates will be conducted at the perimeterof the work zone, as well as within the work zone

in accordance with the HASP. Real time monitoring will be conducted for volatile organiccompounds (VOCs) utilizing an 11.7 eV portable photoionization detector (FID), and for dustutilizing an aerosol dust meter (PDM3).

Continuous ambient air monitoring will be conducted within the work/exclusion and at

the perimeter of the clean/support zones. FED measurements will be recorded hourly if levels arewithin 5 parts per million (ppm) ofbackground levels. If readings at the downwind perimeter ofthe work zone exceed 3 ppm above background in the breathing zone, air monitoring will beexpanded to the downwind property perimeter. The air monitoring locations within the

work/exclusion and clean/support zones, and the property perimeter will be selected to be

downwind of site activities based upon wind direction at the time of monitoring. FIDmeasurements shall be recorded hourly if levels arewithin 3 ppm of background levels. For FID

readings above 3 ppm of background levels, readhigs shall be recorded in 15 minute intervals or

whenever a new high FID reading is encountered. If total VOC levels at the clean/supportperimeter exceeds 5 ppm above background, all site excavation and loading activities will behalted and the actions contained in the Vapor Emission Response Flan followed (see AppendixB).

Air monitoring and response levels for determining personnel respiratory upgrades forworkers within theexclusion zone are specified within the project specific HASF (Appendix C).

Similarly, air monitoring will also be conducted for particulates at upwind, downwind

and within the work area at temporary particulate monitoring stations. If the particulate levels

exceed 100 ug/m^ above background at the work zone perimeter, air monitoring will beconducted at the downwind property line. If downwind particulate levels at the work zone

perimeter reach 150 ug/m^ greater than the measured upwind particulate level, engineeringcontrols will be employed. Dust suppression techniques may includethe sprayingof water over

the area in which the dust is becoming airborne.

All real time air monitoring data will be recorded on daily log sheets and made available

at the site for NYSDEC and/orNassauCotmty Department of Healthpersonnel to review.

1

12

MAIN BUILDING

DRYVELL-

DRAIN^DRYVELL

ROOM

DRY WELL 1

m m

Approxinote Scale

0'

Limit of belualon Zon*

Excavation to +/- 30* bolon

C-I-I-I-I-3 Trwich to a dopth of +/— 8"

Soil romovol to +/- ♦' bdon

50'

Figure 3Dry Well Excavation Map

Lockheed Martin CorporationGreat Neck, New York

lMlo» grodo

DRY WELL

n?Y WELL 3

H2,HGROUPENGINEERS • ARCHITECTS • PLANNERS • SCIENTISTS • SURVEYORS

UaVlliE, N.Y. RIVERHEAO, N.Y. SHELTON, CT. TOTCWA. N.J.

liZ

MQ

^O

UP

Tab

let

Was

teC

hanc

tem

atjo

nD

ata

ftw

iiD

ryW

ellS

ampl

esI.o

cfcf

aecd

Mar

tinC

orpo

ratio

nG

reat

Nec

ic,I

few

Yo

rk

Jun

e1

99

7

Sam

ple

ID#

Drv

Wett

#!

Drv

WeU

#2

Dn

tWell

#3

WU

97

15

57

2

WM

97

15

57

3

WU

97

15

56

9

WM

97

15

57

0

WU

WM

.

Lab

ID#

97

15

57

69

71

55

75

TC

LP

Vo

lati

les.

uv

A

Vin

lyC

hlor

ide

<1

0<

10

<1

0<

10

<1

0<

10

I,l-

Dic

hlor

oeth

ene

<1

0<

10

<1

0<

10

<1

0<

10

Ch

ioro

focm

<1

0<

10

<1

0<

10

<1

0<

10

1,2-

Dii

dtlo

roet

hanB

<1

0<

10

<1

0<

10

<1

0<

10

Carb

on

Teti

ach

lori

de

<1

0<

10

<1

0<

10

<1

0<

10

Tri

idil

oro

eth

en

e<

10

10

,00

00

<1

011

,000

D<

10

3,0

00

D

Teti

aiJ

iIo

rocth

en

e8

013

,OO

OD

<1

05,

700D

36

11

,00

00

Ch

ioro

ben

zen

e<

10

<1

0<

10

<1

0<

10

<1

0

Ben

zen

e<

10

<1

0<

10

<1

0<

10

<1

0

2-B

iita

noii

e(M

EIC

)<

10

<1

0<

10

<1

0<

10

<1

0

KL

PSe

mi-

yglf

ffilt

f,ug

/l1,

4-D

iidt

loT

obcn

zcae

<1

0<

10

<1

0<

10

<1

0<

10

Hex

aid

ilo

roet

hai

ie<

10

<1

0<

10

<1

0<

10

<1

0

Nit

rob

en

zen

e<

10

<1

0<

10

<1

0<

10

<1

0

Hex

airh

loro

bn

tad

ien

e<

10

<1

0<

10

<1

0<

10

<1

0

2,4-

Din

itio

toln

enB

<1

0<

10

<1

0<

10

<1

0<

10

Hcx

ach

loro

ben

zen

o<

10

<1

0<

10

<1

0<

10

<1

0

2,4,

6-T

ricl

iloro

phen

ot<

10

<1

0<

10

<1

0<

10

<1

0

Penl

aiJi

loro

phcn

ol<

25

<2

5<

25

<2

5<

25

<2

5

2-M

ethl

yphe

nol

<1

0<

10

<1

016

<1

0<

10

2,4,

5-T

rich

loro

phei

iol

<2

5<

25

<2

5<

25

<2

5<

25

4-M

ethy

lphe

noI

<1

011

<1

019

<1

0<

10

3-M

ethy

lphe

noi

<1

0•

<1

0«

<1

0<

10

Pyri

dine

<1

0<

10

<1

0<

10

<1

01

2

TC

LP

Herb

icid

es.

up

A

2,4

,-D

<1

00

<1

00

<1

00

<1

00

<1

00

<1

00

i4,5

-TP

(Siiv

ex)

<1

0<

10

<1

0<

10

<1

0<

10

TC

LP

Pest

icid

es.

uir

A

Lin

dan

e0

.1<

0.1

<0

.1<

0.1

<0

.1<

0.1

Hep

taid

ilor

<0

.1<

0.1

0.1

<0

.1<

0.1

<0

.1

Hep

tatd

iloE

poiid

c<

0.1

<0

.10

.1<

o.i

<0

.1<

0.1

En

tlri

n<

0.2

<0

2<

02

<0

.2<

02

<0

.2

Met

hoxy

idilo

r<

1.0

<1

.0<

1.0

<1

.0<

1.0

<1

.0

Tox

aphe

ne<

10

<1

0<

10

<1

0<

10

<1

0

Ch

lord

an

e<

2.0

<2

.0<

2.0

<2

.0<

2.0

<2

.0

Pn

lvch

lori

nate

dB

ioh

env

ls.

mv

Acs

<3

.6A

rocio

r1

01

6<

3.5

<3

.7<

3.5

<3

.6<

3.4

Aio

clo

r1

22

1<

3.5

<3

.7<

33

<3

.6<

3.4

<3

.6

Aro

cio

r1

23

2<

3.5

<3

.7<

3.5

<3

.6<

3.4

<3

.6

Aro

cio

r1

24

2<

3.5

<3

.7<

33

<3

.6<

3.4

<3

.6

Aro

cio

r1

24

8<

3.5

19

<3

.54

.6<

3.4

6.4

Aro

cio

r1

2S

4<

3.5

<3

.7<

3.5

<3

.6<

3.4

<3

.6

Aro

cio

r1

26

0<

3J

3.1

J<

3.5

0.9

J<

3.4

0.9

J

Ino

rgan

ics.

mrA

<0

.01

<0

.01

Sil

ver

<0

.01

<0

.01

<0

.02

<0

.01

Ars

enic

<0

.02

<0

.02

<0

.02

<0

.02

<0

.02

<0

.02

Bari

um

03

50

34

03

20

.42

03

50

.53

Cad

miu

m0

.02

<0

.00

50

.01

<0

.00

50

.01

<0

.00

5

Ch

rom

ium

0.0

4<

0.0

1<

0.0

1O

.Ol

<0

.01

<0

.01

Mer

cury

O.2

0ug

/I<

0.20

ug/l

O.2

0ng/

1<

020

ug/l

<0.

20ng

/1<

0.20

ug/l

Lead

0.8

70

28

1.8

0.0

80

.10

.2

Sele

niu

m<

0.0

3<

0.0

3<

0.0

3<

0.0

3<

0.0

3«

a).0

3

pH(C

orro

s.)

6.6

un

its

73

un

its

7.6

un

its

7.4

un

its

9.7

imit

s7

.1u

nit

s

Rea

ctiv

ity

No

No

No

No

No

No

Fla

shpo

int

>6

0'C

>60

*C

>60

*C

>60

*C

>60

*C

>60

*C

No

tes:

<•I

ndica

testh

atan

alyte

wasn

otde

tect

edab

onth

sins

lnnn

cntd

elec

iian

limit

^W

USa

mples

were

eotnp

osito

dftor

a12t

oIS

feet,s

nilW

Mlan

ples

were

contp

orite

dfrta

n25t

o31f

tesbe

lowps

tk.

Nov13'9?8=38

CCimaunltyAirMonitoringPlan(Ground^IntniaivaActivities)

P.05

Real-tineairmonitoring,forvolatileconspoundaandparticuiatelevels&cbh«pcz-ineceroftheworleareaisnecessary.Theplanmustincludethefollowing:|

Volatileorganicconpoundemust!bemonitoredatthedownwindperimeteroftheworhareaonajcontisuoeebasis.Iftotalorganicvaporlevelsexceed5ppntabove{bac.^grousd,workaetivieiasmusebehaltedandmonitoringcontinued!underCheprovisionsofaVaporartissionResponsePlan.AllreadingsmustberecordedandbeavailableforState(DEC&DOH)personnel;toreview.

Particulatesshouldbecontinuouslymonitoredupwind,downwindandwithintheworkareaatten^ora^porticulateavotxicoringstacieas.Ifthedownwindparticulatelevelis150greaterthantheupwindparticulatelevel,thendust3u;^ressiontachniguesnustbeeoRpIoyed.Allreadingsmustberecordeda^beavailableforState(D8CStCOK)personneltoreview.

vanor«aionResponsePlan

Iftheambientairconcentrationof(organicvaporseaeeeeda3ppmabovebac-bgroundattheperimeteroftheiworkarea,activitieswillbehaltedandmonitoringcontinued.Iftheo'rganicvaporleveldecraasesbelow3ppmabovebackground,woxbactivitiescanresume.Iftheorganicvaporlevelsaregreaterthan5ppmoverIbackgroundbutlessthan25ppmoverbackgroundattheperimeterofthe[workarea,activitiescanresumeprovided;

•theorganicvaporlevel200ft.idownwindoftheworkareaorhalfthedistancetothenearestresidentialorcommercialstructure,whicheverisleaa,iabelow3ppmoverbackground.

Iftheorganicvaporlevelisabove25ppmatCheperimeteroftheworkarea,activitiesmustbeshutdown.IWhenworkshutdownoccurs,downwind,airmonitoringasdirectedtoytheSafetyOfficerwillbeimpleaaentedtoenavurechatvaporemicaioadoesnotimpactthenearestresidentialCfcommercialstructureatlevelsexceedingChosespecifiedintheMajorVaporEmissionsection.

PajaeI

\

CtifflemflltyAiricotiitoriagflaa(Orousdlntru«iT«Activitl#*)

Nov13"9?8:38P.06

MajorVanQ^*i

Ifanyorganiclevalsgraaterthan5ppttcvarbackgroundar®ideneifiad200featdownwindfromtheworkareaorhalfthediataneetothenearestrasidoncialorconmoreialproperty,jwhicheverisless,allworkactivitiesiruatbehalted.

If,followingtheceaaationoftheIforkaetiviciea,orastheresultof anemergency,organiclevelsperalstiabove5ppmabovebadcground200-eecdovmwindorhalfthedistancetothisnearestresidentialorc-ran^ciaipropertyfromtheworkarea,thenchieairqualitymustbemonit-redwichxn20feetoftheperimeteroftheneajreatresidentialorcommer•*1structure(20^'ootZone).it

IfeffortsCOabate«-h»iwaissionsoWeaaretmsuccessfxilandifthefollowinglevelspersistformorethan30minutesinthe20FootZone,ChenCheMajorVaporanissionReaponaePlanshallautewaticallybeplacedintoeffect;

iforganicvaporlevelsareapproachingSppmabovebackground.

However,theMajorVaporEmissionfte^onaePlanplacedintoeffectiforganicvaporlevelsaregreaterthan10ppmabovebackgrotmd.i

MajorVar<^rfissionResttonaaPlan'I

uponactivation,thefollowingactivitieswillbeundertaken;

1.AllEmergencyReaponaeCoataociiaslistedintheHealth,andSafetyPlanoftheWorkPlanwillgointoeffect.

2.ThelocalpoliceauthoritieswillimmediatelybecontactedbytheSafetyOfficeriundadvisedofjchesituation.

3.Frequentairmonitoringwillbbconductedatwithinthe20FootZone.Iftwosuccessivereadingsbelowactionlevelsaremeasured,airmonitoringmaybehalted6rmodifiedbysafetyOfficer-

92275PRO0524

Pa^e2

pn'/i

liZHG^OUPI utilizing report only format. One trip blank sample and one blind duplicate sample will be

collected for quality assurance/quality control. The trip blank sample wiU be analyzed for VOCs

only (EPA Method 8240) and the blind duplicate samples will be analyzed for all parameters

(VOCs, SVOCs, PP Metals and PCBs).

If no subsurface structure is encountered in any of the trenches anci'or test pits, two

confirmatory soil samples will be collected from the loading dock area from the approximate

location of each of the two dry wells being investigated. Their locations will be established

based on the 1941 site plans. The soil samples will be collected from the bottom of the trenches

and/or test pits (at a maximum depth of 6 feet below grade). The samples will be analyzed for

VOCs (EPA Method 8240), SVOCs (EPA Method 8270), PP Metals (EPA SW-846), and PCBs

(EPA Method 8080), utilizing report only format. QA/QC samples will include a trip blank and

a blind duplicate sample.

Following completion of sampling activities, the trenches and/or test pits will be

backfilled to grade with the soil removed from the excavation.

4.2 Drv Well Excavation

The remediation ofthe soil and sludges within and beneath the three dry wells (#1,2, and

3) will extend to 30 feet below grade. Piping connecting the three dry wells wUl be removed. In

addition, piping connecting Dry Well #1 to the building will be cleaned and capped at the

exterior building wall. Soil removed from the dry wells will be disposed of off-site at a RCRA

permitted treatment/disposal facility.

Excavation of the three dry wells will be conductedin four phases as summarized below,

and described in further detail in the sections to follow.

• Phase 1: Pre-Construction Activities

- Subsurface utility markouts- Obtain local excavation permits, as required- Sample dry wells to obtainwaste approvals from disposalfacility

• Phase II: Excavation Activities

- Work zone delineatiou

- Soil vapor extraction system temporary shutdown- — Sheeting and shoring

- Dry well soil excavation- Loading ofsoils for disposal

*,.• ii'

•X"-<t-

:..if>>>, r <, Ur;

""-••'r- . r

,i , - . > .,,' ,

... '4 , ^ X .«.

liZMGROUP

In June 1997, soil samples were collected from each of the dry wells for analysis ofwastecharacterization parameters (i.e., TCLP VOCs, TCLP Semi-Volatile Organic Compounds(SVOCs), TCLP Metals, TCLP Pesticides and Herbicides, and for PCBs, pH, ignitability andreactivity). From each ofthe three dry wells, two samples composited from between 0to 30 feetwere obtained. The WIT samples from each dry well were collected by compositing individualsoil samples from 12 through 18 feet below grade, while the "WM" samples from each dry wellwere composites ofsoil samples from 25 through 31 feet below grade. The analytical data forthe waste characterization parameters is summarized in Table 1ofAppendix A.

4.0 Scone of Work

In accordance with the ROD, soil from within the three dry wells (Dry Wells #1,2, and 3)will be excavated to a depth of approximately 30 feet below grade. In addition, subsurfaceinvestigation activities will be conducted in the southeast loading dock to confirm the presenceor absence ofdry well structures.

Southeast Loading Bay Subsurface Investigation

During previous soil sampling conducted for the RI, it could not be confirmed whetherthe dry wells that served the southeast loading bay, and the dry weU located immediately west ofthe loading bay have been removed. To help determine this, shallow trenches or test pits will bedug in the area west of the southeast loading bay to determine if any evidence of the two drywells shown in the original site plans in this area can be found. The trenches and/or test pits willallow for visual inspection of the subsurface to help confirm the presence or absence of thesesubsurface structures. The general area where trenching/test pitting will be performed is shownin Figure 3.

Trenching and/or test pitting will be performed utilizing a backhoe. Field screeningduring these activities will be performed using aportable photoionization detector (PID). Thetrenches and/or test pits will extend to a ma.ximum depth of 6 feet below grade, unless asubsurface structure is encoxmtered, at which time the trenches and/or test pits will extend deepenough to allow for avisual inspection and assessment of the structure and surrounding soilconditions. Samples will be collected from around and/or beneath the structure to determine ifconcentrations in soil warrant any remedial actions. Sampling will be performed utilizing thebucket of the backhoe or other sampling equipment to preclude the need for field personnel toenter the excavation. The samples collected will be analyzed for VOCs (EPA Method 8240),SVOCs (ETA Method 8270), PP Metals (EPA SW-846), and PCBs (EPA Method 8080)!

•ilMGROUPAccording to a 1941 site plan. Dry Well #3 is constructed of S-inch concrete block with

an 8 foot outside diameter, and extend down to approximately 16 feet below grade. The

materials of construction and dimensions of Dry Wells #1 and 2 have not been confirmed. All

three dry wells are currently inactive and have been filled in with soil and/or concrete debris to

grade. Two of the dry wells are located beneath a concrete pad, while the third dry well is

beneath soil and accessible via a manway.

The two other dry well structures located on the south side of the building and west of the

southeast loading dock were reportedly removed in 1989 at the time that the former undergroimd

storage tanks, also located in this area, were removed. (See Figure 3.) According to the 1941

building plan, these dry wells are rectangular m shape with dimensions of 8 feet by 5 feet. The

absence of these two dry wells adjacent to the loading dock will be confirmed through trenching

and/or test pitting which will be conducted as part of this workplan.

3.2 Drv well Soil Analvtical Data

Past subsurface investigations conducted in the Dry Well Area confirm that the soil

located within the three out-of-service dry wells contain VOCs. These VOCs are the primarysource of contamination to groundwater.

Previous soil investigations conducted in the Drj' Well area as part of the Remedial

Investigation (RI) included the collection of soil samples firom the out-of-service dry wells aswell as a soil-gas survey in the areasurrounding the dry wells. Methodsand results are described

in detail in the RI report (H2M, 1996). These results are summarized below:

• The soil-gas survey detected elevated volatile organic compounds (VOCs) in the DryWell area. These results are consistent with previous analytical results firom this areawhich showed elevated levels of trichloroethene (TCE), tetrachloroethene (PCE) andcis-l,2-dichloroethene (1,2-DCE).

• Analysis of soil samples from the dry well soil borings confirmed the presence ofelevated concentrations of VOCs and indicated that elevated concentrations of somemetals are also present. The primary contaminants detected includetetrachloroethene, trichloroethene, toluene, ethylbenzene, xylenes, with lower levelsof 1,2-dichloroethene. The highest concentrations of VOCs and metals detectedduring the dry well soil boring program were associated with sludge materialcontained within the inactive dry wells. In addition, low concentrations of semi-volatile organic compounds (SVOCs) and trace concentrations of pesticides andPCBs were detected.

JUN-01-98 MON 10:55

H2HGROUPHoJxmachcr* McLcndon & Murrell, P.C, • H2M T.abs, Inc.H2M Construction Management, Inc. • H2M Associates, Inc.575 Broad Hollow Road, Melville, New York 11747PHONE: (516) 756-8000 • FAX: (516) 694-4122

P. 01/11

TO: fiirish Dfisai FROM: Rich Baldwin

COMPANY: NYSDFC RE; Great Nock

DATE: 6-1-98 # OF PAGES (inch cover sheet): 11

TIME: NOTB: PLEASE CALL IMMEDIATELY IF VOU

DO NOT RECEIVE ALL PAGES

FAX: 444-0248

COMMENTS;Dear Girish,

Pursuant toBob Gilbert's request, please find the attached revised pages of the OU-1 Dry Well AreaExcavation Work Plan.

Thank You, • 1Rich

€

cc: Bob Gilbert (818)847-0170

- •<'"

« .

. , j,-*. •

-I

f

FOR OFFICE USE ONLY:Project No.:Roimb;Sender (Hn'tieH:_

..:

l''.

«••

T\' ^-.

iU*i

-

r^"'^

'^-

;A

W

•

-.c/

r-'

^>

fv»>

*"^^

-.55.

,

.

,,^

fi.\

...'I

v^

r'/'

'

WM

-i»

'-..*,

••:• X '•V

r--.

.v":''

••••••

'̂*"•,

VV

.-V

^•'r.

-

»,•

s

-N

>«

*S

•.-•

>•*

/j

K#.

->

•'

W.

0B/B3/lS3a 12:17 2019421333

Hulxtnacher, McLii:itdlDn 4 Murrell, P.C. • KlM Auodatei, Inc.H2M Conitructiun ManBgemeBt, lac. • iOM LMta, KM.

553 PreiUuieiia Avenue, ToUnva,NJ 07313(973)942-0700 ♦ FAX: (973)942-1333

H2M ASSOCIATES INC

FAX lltANSlffrrTAlp

DATE:.

TIME;

June 3f 1998

12:15

NUMBER OF PAGES Oncludlng cover Sheet):

TO; Girish Dflsai

COMPANY; NYSDEC

FAX NUMBER; (5161444-0248

FROM: Chuck Martello

RE:

COMMENTS:

Dear Girish.

PAGE 01

ACEC Matnbtr

SupfXMVnoenfMil^ncfIn Engineering

Pursuant to vour conversation with Ridi attadied oleaae find tlw iiiingndod table. Please begB_Rjch__)4ithjLnv

questions or comments. —

CONTACT SENDER IF YOUDO NOT RECEIVE ALL PAGESOR COPY IS NOT LEGIBLE;PHONE: (973)942-0700FAX; (973)942-1333

TOR OFFICE USE ONLY

Project No. :

Roimb:

Dispatcher (Inltlel):

Non-Roimb:

V •

- •-—

—aaa

CMCD

COCO

oDCD

CM

CD

LO

O

DC<cU-.

CD

CDcn<n

CM3C

CD)UJ

COCD

Iro

CD

I

Southeast LoadingBay

Test Pits'

Dry Well

Excavations

Top 4 Feet of Soil

Around Dr^Wells

Dry WellExcavations

£1 £er Drj[we]l)1

(1 per Drywell)

TABLE I

SOIL AND QAyqC SAMPLE MATRIXLOCKHEED MARTIN

GREAT NECK, NEW YORK

TCL VOCs^ TCL SVOCs^TCL Pesticides/PCB s and TAL Metals

TCL SVOC^", TCL Pesticides/PCBs'and TAL Metals®

LevcLof:

QA/QC

ASPCLP

ASPCLP

md

ifilaiiks

1

Blanks

1

NA

TCL V0C3^ TCL SVOCs£TCLPesticides/PCB's and TAL Metals®

Report

ReportOnly

1 1

TCL VOCs'

iDllhd;

Diipifekfes

1

Notes:

' Four test pits will be excavated and require sampling.^ The test pits are expected to be conducted in one day.' All samples will be analyzed for TCL VOCs using NYSDEC Method 95-1. Analysis will include Freon 113.

The holding time for TCL VOCs isseven days and the samples must becooled to4°C forpreservation.One 2-ozgla.ss jar is the required container.

'* All samples will be analyzed for TCL SVOCs using NYSDEC Method 95-2.The holding time for TCL SVOCs is5 days for extraction and 40days for analysis and the samples must becooled todt: for preservation.One 4-ozglassjar is the requiredcontainer.

^ All samples will be analyzed for TCL Pesticide'PCBs using NYSDEC Method 95-3.The holding time for TCL PCBs is5days for extraction and 40 days for analysis and the samples must becooled to4®C for preservation.One 4-oz glass jar is the required container.

®All sanplcs will be analyzed for TAL Metals using NYSDEC 200.7 CLP-M.The holding time for TAL Metals is six months,One 4-ozglassjar is the required container.

^ All samples will be analyzed for TCL VOCs using EPA Metltod 8240.The holding time for TCL VOCs is seven days and thesamples must becooled tod'C for prescn'ation.One 2-oz glassjar is the required container.

SaMiljiteis:;:Nti^feqrqt

9

7

LOCKSaOimrj'wetstTahtel

V.

•f

^1^6/02/199816:352019421333H2MASSOCIATESINC

H2MCROUPHolzmacher,McLen^n&Mumll.F.C•KIMAMMlates,Inc.H2MConstructionMan«gemeat,lac.•R3ML«lM,]ae.

555PreaknessAvenue.Totovva,NJ07312{201)94243700•FAX:(201)942.1313

FAXTRANSMnTALFORlli

DATE:

TIME;

NUMBEROFPAGES(IncludingcovartlWBt}:A.

TO:

COMPANY:

FAXNUMBER;

FROM:

RE:

GirishDeaal

NewYorkStateOaoftmantofffnvlfg16)444-02418

SuiLaonn

LpcHfieedMK^nGreetNeek

H(Sonaefvetten

PAGE01

ACECMemlMf

SupportingExce/fencs

AtEngnypftrtng

COMMENTS:

^rgfluestadbyBobQHfrgft,ifFth#revltedrtiiMwOrvWedAreaExcavationWorkFlapwhichincorpprate?ygyrWCgntcommente.PteieeeefttaetBobGHbertwitfianyquestions.Thanks.

PleasecontactsenderifyoudorwrtricetvtIrttpage*orcopytiPHONE:(201)942-07(X)

FAX:(201)942-1333..

H2MGROUPHolzmacher, McLendon & Murrell, P.C. • H2M Labs, Inc.H2M Construction Management, Inc. • H2M Associates, Inc.575 Broad Hollow Road, Melville, New York 11747PHONE: (516) 756-8000 • FAX: (516) 694-4122

TO: Girish Desai FROM: Rich Baldwin

COMPANY: NYSDEC RE: Great Neck

DATE: 6-3-98 # OF PAGES (incl. cover sheet): 5

TIME:

FAX: 444-0248

NOTE: PLEASE CALL IMMEDIATELY IF YOU

DO NOT RECEIVE ALL PAGES

COMMENTS:Dear Girish,

Pursuant to Bob Gilbert's request, please find the attached revised pages of the OU-1 Dry Well AreaExcavation Work Plan.

Thank You,

Rich

cc: Bob Gilbert (818)847-0170

10'd 9£t7802t79l3 "ON XVd

fOR OmCE USE ONLY:Project No.:Reimb;

Sender (initi9l):_

•ONI 'sm m iO:Ol am 86-£0-Nnf

JUN-01-98 MON 10:55 ^ ' p

DRY WELL AREA EXCAVATION

WORK PLAN

Operable Unit 1

Lockheed Martin Corporation

(Former Unisys Corp. Site)

365 Lakeville Road

Great Neck, New York

NYSDEC Site No. 130045

May 1998

Preparedfor:Lockheed Martin CorporationBurbank Program OfficeBurbank, California

• Confirm the location ofthe two dry wells which are currently not accessible at grade,• Allow for equipment maneuvering during installation ofthe steel sheeting boxes, and• Assist in the identification of any unknown underground utilities within the exclusion

zone, including piping that interconnects the three dry wells, prior to installing thesheeting. Any utilities within the top 4 feet of the excavation will be disconnected,and temporarily removed. Piping from the building to Dry Well #1 will be removedand capped at the building exterior.

The top 4 feet of soil from within the circumference of each dry well will be loadeddirectly into trucks for off-sitc disposal. Soil fi'om the top 4 feet from around the outsideperimeter ofthe dry wells will be staged on plastic. The soil will be analyzed for TCL VOCs,TCL SVOCs, TAL Metals and TCL Pesticides/PCBs (report only format). The soil may bereused as fill if it does not exhibit signs ofimpact (based on analytical results). Otherwise, thestaged soil will becombined with the dry well soil for off-site disposal.

4.4.4 Excavation Activities

Soil and sludge from within the 10 foot by 10 foot area sheeting box surrounding eachdry well will be excavated utilizing a trackhoe excavator and clam shell crane with a \'erticalreach of at least 30 feet- The excavation will proceed to a depth of appro.ximately 30 feet bgs.Thetotal soilvolume is estimated tobe474tons, estimated based on the followm<»:

Volume calculation; 10' x 10'30' deep

Formula:

Soil density:

Soil volume;

Total Volume:

W'd

10' X 10' X 30'

Cubic feet/27 cubic feet

105 lbs. per cubic feet1 cubic yard

— 3,000 cubic feet/dry well= 111.1 cubic yards/dry well

= 27 cubic feet

105 lbs. percu. ft. x 27 cu. ft. (1 cu. yd.) = 2,835 lbs./cu. yd.

Density conversion: 2.835 lbs, per cubic yard = 1.42 tons/cu. yd2,000 lbs./ton

111.1 cu. yd. X1.42 — 158 tons/dry well

158tons/drywell x 3 dry wells = 474 tons

10

9£t?802t79l9 'ON XUH 'ONI 'seyi m 80:01 m 86-8G-Nnr

t-

W-

TABLE I

SOIL AND QAA^C SAMFLE MATRIXLOCiCHEED MARTIN

GREAT NECK, NEW YORK

cn

C9ND

lOUD00

O)Ol

' . Nwfcar; QA/QCSuvtec Tvtal

Mmm ITin-terat ® findkrMtoo

- -

^; .V _.. :: UD

SoMdKact LaadfaigBiy 4 T(XVOC»\ TCL SVOCa^ ASP OP II® I 2 9 N3

. trnm^ m BiatieilaaffCS'iMrimCOCO

••3 •-,• ASi^ap I m • I 2

ITf 1,1,^1,.fa ; Cipwayw^ aadTAI^MAik*

Dkrl^ ifespst 0- • / 1 ^ • t - 9 t • -

EwUm' (IperDKym^ .V '

*TheMpba>e«oq>celeiitolwoaaiiwiediaaBedijr.^ AariywwfliMtafcflMiUX

iUt wi^fOTlCLlMaitffCBkMiiellYStsec

Hietirliirmtif ferTCLFCBti»5diaf>fermli>ilkwid49Ay«fiirMiyii»i<acwpfc»w<faeoo<ifa4M>4'CfaipBaiarw6».<>»4^gltaoijar a leqomd cattHBcr.

* Alsn^wSbeaMiyzBd for TAL MeUk iKa« NYSDGC »0.7CtP-jyt.Hie1iot£i^ tee forTAL Mc4ak is «x mortbt.Cte 4-<i(z ^assjar b te leqoired cotesier.

' AOsm^tkawiflbenatyzedrcirTCL VOCsysBsgEPAM«tedS240.HieboidingliiBe forTCLVOCs isseven days iDii thenffipies rooiit becooted b>4'C for presemuion.OneI'd- glassjar is ibe reqpnred coaitainer.

-"-C" V-y--^

LOCK9S01 \Crw<*llsC7>l>l( f

IND

cntnooM

1>Hmcn

zo

"0>

rn

COCD

.If-..

• f.., Af" i

,/f I f '^r ;/ •< -y.- .

H- Mf -vf ; "". f jI

i • ' ' •• ' = "-"- ryr'<• .v; ;

t•:

I^ -ir> f/iA • i:?:.Vf-.>• |

,; '•••-Ui-'fe'. •? : ! 'rfapfe- •- - .fc*. yahacs.Air.;

I <-.;;»ss

.•, e»-:.y;i« tmt iirtsifimjai. 5«^ #ji(q t3i« -m-l

,.•... r-.;>!f .-j :=-;! ••(.•>•?«.-•.•! s.: «Ti| vaj -iffl

J.i s?'"n 'i >• MS6f^.< •*. f .•• i-'i-Tti? iji bBiV«fas> M< (Kafcefsai .SA '

I''* »? b-f •• x-j;; •Sf-h.af-.v-'.(fj; '-v.. »X/f

r4^ 0 ^ -"SMfe »•' «£?

i.' •>»/••. ] '"^Tt VriTi.fiiiiitiiifTirir" iiiiipiilpi lfi ^Sf*!-?- _; "'.i'iV vSfe;,-.--. -i-...-f»;r-..ir-. 1.1 tft

~i,-55<s*9» sA>.1-* a»!Tf

•• .;^':.-5?5!Wsfcw>4Sw.»*-kj?r«SA ••

•>.«- • •• • f-'.'f-;• , • r-•• --<S ^ r-' ••• '.<-.^. .a.r. ^-'(taltjiiBi J?(<« «i8J.sr'*''«si

'•ijj'aSSsn.s iv.m^r}^ a^.* ?: tet .w-A »«(>

V - '. v. ' •' yy.. • '•'iy:-* •-, f-^'vti'Es StifiaityiWz «'•

; '.•,; 1 " '-• vrr

-• ":• -..aj .js-f-. SiJ'V'ai^..'

.-/f -."'; ...-...; Xi'i .ji' •• • --ty-- •; •

.A- .- . >> • if.!!-- • > w! f,-.-• ..;f- • .,- -• n f- •• f • . .- • •':

SautheasI LoadingBayTest Pits'

Dry Well

ExcavaticjK

Dry WellExcavations

xvNiumber

•iirixaifEiiijdes

(IperPP'^gll)

3

(I per Drywell)

TABLE 1

SOIL AND QA/QC SAMPLE MATRIXLOCKHEED MARTIN

GREAT NECK, NEW YORK

Analyses:

TCL VOCs^ TCL SVOCs\TCLPCB's and TAL Metals'

TCL SYOCs^ TCLPCBs^

and TALMetals'

TCLVOCs^

Lp.yd:pf;:

QA/QC

ASP CLP

ASP CLP

ReportOnly

EieW;:

1

Trip:iBiaqks

1

NA

viBiitiB:

Ilupjfjeates1

ms/msp:•SatBpies

Nflles:

' Four test pits will be excavated and require sampling.' The liesi pits are expected to be conducted in one day.' .\ll samples will be analyzed for TCL VOCs using NYSDEC Method 95-1,

The holding time for TCL VOCs is seven daj's and the samples must becooled to4°C forpreservation.One 2-02 glass jar is the required container.

* All samples will be analyzed for TCL SVOCs using NYSDEC Method 95-2.The holding time for TCL SVOC& is 5days for exh actioti and 40 days for analysis and the samples must be cooled to4*C for preservatitni.One 4-oz glass jar is the requiredcontainer,

' All samples will be analyzed for TCL PCBs using NYSDEC Method 95-3.The holding time for TCL PCEs is 5days for extinction and 40 days for analysis and the sample; must be cooled to d'C for preservation.One4-oz glass jar is the required container.

' All samples will be analyzed for PAL Metals using NYSDEC 2O0.7 CLP-M.The holding time for TAL Metals is six months.

One 4-oz glass jar is the required container.

' Allsamples willbeanalyzed frw TCL VOCs using EPA Method 8240.

The holding time for TCL VOCs isseven days and the samples must becooled to4°C foi preservation.Or.e 2-oz glass jar is the required coiilainer.

Nunitkrat::Sa|:itpk^:

LOCK0B01 tDryweafitTsblel

ICOCD

oz:

cnCD

06/02/1998 16:35 2019421333 H2M ASSOCIATES INC PAGE 07

- Dust Control Procedures- Community Air Moidtoring

Phase in: Site

- Backfill diy wells to grade- SVE system start-up- Decontaminationofequipnumt

Phase IV: Trangport It- Manifesting

^ Phase I - Pr»ConstnictiBn ActivitiesPhase I of this project, pre-construction activitifli, is to begin in April 1998.

Activities conducted during the pre-constructlon phase are to ensure the successfulcompletion of this project in a tim^ and safe manner. Pr(^TCoslSfiruotion activities will include the

securing of local excavation permits (as required), coordinatiOB Of the mark-out of subsurfaceutilities, and the characterixation ofthe soil and sludge wOstO stnitm for off-site disposal

Loc4tll*mnit9Excavation permits, as may be required by the will be obtained by the

remediation contractor performing this work prior to uiiiatioh of^fbld activities.

4,3 ? Swbta#^ Mty MayfeiQutsSeveral below grade utilities are known to be preOielit jft file area of the dry wells These

utilities include the SVE system piphlg. municipal water dliiei^ stOi^ water driunage and electricallines. All subsurface utilities within the work area wih bO i^^ified prior to any excavationactivities. This will include notifying foe New York City imd li^hg Island One Call Center (516-661 -6000) for utilitymark-outa. Any five utilities willbe identifoi^ and tagged.

Based upon source q|)er»tk>m, Lockheed Marifo hds that the soils will beclassified as F002-listed RCRA iMuardoitti waste for soH^ driii^c compounds from non-specificsources. The soils will be pre-treated at the chigMsd fo mBaif Disposal Regulation (I,DR)

limits prior to secure landfiEl fosposat. Thti di^sal mPfoM dfd d^ected based on the results ofthe treatability test and the acceptanoe of the wasth ifoetm % the selwjied disposal facility(Michigan Disposal).

.• •

7 ••• V• • r.

' ' ' ^",.••• '„'•' ! '•

•:V -•

-•V-s:.' :• v-i' ., .r '•

••• • ..• •. ; .t

- r ••'- ' ' %•••: • 'y i;r:^ . .••,•."•

';:r'• yi •• ' i' ' \ ;• •"; •• '.'• '.

v ':n.; •«' ^ •. - •• ,,••;• ^'.r-:. -

: ' ••»'

^ '-"K^ .• •*:• x-i-..;:;'/).; . ,,,»••••'•/.': :5.v .

.• - • f • . V'".-

; • '• tfu- . 'i- ; •••••?•>:• , -.J'y' ,• H ••

....<•" • :,A -V ' • -•' - •• ' • "••• • V ••.•-•.• •• •• - • ^ i . • • • - . -• : • » . - V -[f• • I'.. .

X'. . -• - -..i .H: Jii y \'. ^ \ •

-•XiFjq'j:r --i "lol '' ' ' ' '

•y brtj; 0? srh is •• •' • -••

•y-T'i.' X4C'";d!v Wxli'" ;' S'X.' r.-

V" -Xxi-x tfih •.•.« Mis tssif x • •..

,is •••;

.JlJN-01-98 MON 10:58 P. 10/11

n

Cnnfinnatorv Soil Samnles

Upon evcavating to approximately 30 feet below grotmd surface (bgs) at each drywell, bottom soil samples will be brought to the surface using the bucket of the excavator

andexamined visually andolfactory to determine if non-sludge material (e.g., native soilssuch as sand and gravel) are present. The excavation will be continued, as feasible and

practicable, ifsludge materials are still evident in the bottom soil samples.

One confirmatory soil sample will be collected from the bottom of each

excavation, at approximately 30 feet bgs, once field inspections indicate native materials

have been encountered. Soil samples will be collected utilizing the bucket of the

excavator and analyzed for TCL SVOCs and TAL Metals using NYSDEC ASP CLP

procedures, and for TCL VOCs using report-only format. Samples for TCL VOC and

TCL SVOC analysis will be collected as grab samples from the center of each diy well

excavation, while the samples for TAL Metals analysis will be a composite sample fromthe bottom of each excavation. QA/QC samples to accompany these soil matrix samples

are included in Table 1.

The samples will be submitted to H2M Labs, Inc. for expedited tum-around,

wliich will allow for evaluation of the analytical results prior to backfilling. Additional

soil may be removed from the bottom of the excavation, to the extent practicable and

feasible, depending on the results of the post-excavation soil samples.

6a

.jyN-01-98 MON 10:57 p

- Dust Control Procedures- Community AirMonitoring

♦ Phase ni: Site Restoratiop- Backfill drywells to grade- SVE systemstart-up- Decontamination of equipment

• Phase rV: Transport & Disposal- Manifesting

4=3 Phase T- Pre-Construction Artivitipg

Phase Tof this project, pre-construction activities, is anticipated to begin in April 1998.Activities conducted during the pre-construction phase are necessary to ensure the successfulcompletion of this project in a timely and safe manner. Pre-construction activities will includethe securing ot local excavation permit.? (a.? required), coordination ofthe mark-out ofsubsurfaceutilities, and the characterization of the soil and sludge waste stream for off-site disposal.

Local Permits

Excavation permits, as may be required by the local municipality, will he obtained by theremediation contractor pertbrming this work priorto initiation of field activities.

4-3-2 Subsurface Utility Mark-.niita

Several below grade utilities are known to be present in the area ofthe dry wells. Theseutiliiies include the SVE system piping, municipal water lines, storm water drainage andelectrical lines. All subsurface utilities within the work area will be identified prior to anyexcavation activities. This will include notifying the New York City and Long Island One CallCenter (516-661-6000) for utility mark-outs. Any live utilities will be identified and tagged.

iiU Waste Characterization and Waste Stream ADnmval

Based upon source operations, Lockheed Martin has determined that the soils will beclassified as F002-listed RCRA hazardous waste for solvent organic compounds fix)m nonspecific sources. Tlie soils will be pre-trealcd to meet Land Disposal Regulation (LDR) limitspnor to secure landfill disposal. Tliis disposal method was selected based on the results of the

treatability test and the acceptance ofthe waste stieam by tlie selected disposal facility (MichiganDisposal).

JUN-01-98 MON 10:57 p

services protocol (ASP) contract-laboratory protocols (CLP) procedures (see Table 1). The listof QA/QC samples to be utilized is included in Table 1.

If no subsurface structure is encountered in any of the trenches and/or test pits, twoconfirmatory soil samples will be collected fiom the loading dock area from the approximatelocation of each of the two dry wells being investigated. Their locations will be establishedbased on the 1941 site plans. The soil samples will becollected from the bottom of tlie trenchesand/or test pits (at a maximum depth of6 feet below grade). The samples will be analyzed forTCL VOCs, TCL SVOCs, TAL Metals, and PCBs, utilizing NYSDEC ASP CLP format. The listofQA/QC samples to be utilized is included in Table 1.

Following completion of sampling activitjes, the trenches and/or test pits will bebaclcfilled to grade with the soil removed from the excavation.

4.2 Dry Well Excavation

The remediation ofthe soil and sludges within and beneath the tliree dry wells (#1,2, and3)will extend to 30feet below grade. Piping connecting thethree dry wells will be removed. Inaddition, piping connecting Dry Well #1 to the building will be cleaned and capped at theexterior building wall. Soil removed from the dry wells will be disposed of off-site at a RCRApermitted treatment/disposal facility.

Excavation of the three dry wells will beconducted in four phases as summarized below,and described in further detail in the sections to follow.

• Phase I: Pre-Construction Activities- Subsurface utility markouts- Obtain local excavation permits, as required- Sample drywellsto obtainwaste approvals from disposal facility

• Phase IT: Excavation Activities

- Work zone delineation

- Soil vapor extraction system temporary shutdown- Sheeting and shoring- Dry well soil excavation- Loading ofsoi Is for disposal- Confirmatory soli samples

JUN-01-98 ilON 10:56 ?.QB/n

In June 1997, soil samples were collected from each of the dry wells for analysis of waste

characterization parameters (i.e., TCLP VOCs. TCLP Semi-Volatile Organic Compounds

(SVOCs), TCLP Metals, TCLP Pesticides and Herbicides, and for PCBs, pH, ignitability and

reactivity). From each of the three dry wells, two samples compositedfrom between0 to 30 feet

were obtained. The "WLI" samples from each dry well were collectedby compositing individual

soil samples from 12 through 18 feet below grade, while the "WM" samples from each dry wellwere composites of soil samples from 25 through 31 feet below grade. The analytical data for

the waste characterizationparameters is summarized in "fable 1 of Appendix A.

4.0 Scone ofWork

In accordance with the ROD,soil fromwithinthe three dry wells (Dry Wells#1,2, and 3)will be excavated to a depth of approximately 30 feet below grade. In addition, subsurface

investigation activities will be conducted in the southeast loading dock to confirm the presenceor absence of dry well structures.

4.1 Southeast Ix^ading Bav Subsurface Investigation

During previous soil sampling conducted for the RI, it could not be confinned whether

the dry wells that served the southeast loading bay, and the dry well located immediately west of

the loading bay have been removed. To help detennine this, shallow trenches or test pits wiHbe

dug in the area west of the southeast loading bay to determine if any evidence of the two dry

wells shown in the original site plans in this area can be found. The trenches and/or test pits will

allow for visual inspection of tlie subsurface to help confirm the presence or absence of these

subsurface structures. The general area where trenching/test pittiiig will be performed is shown

in Figure 3.

Trenching and/or test pitting will be performed utilizing a backhoe. Field screeningduring tlicsc activities will be performed using a portable photoionization detector (PID). The

trenches and/or test pits will extend to a maximum depth of 6 feet below grade, unless a

subsurface structure is encountered, at which time the trenches and/or test pits will extend deep

enough to allow for a visual inspection and assessment of the structure and surrounding soilconditions. Samples will be collected from around and/or beneath the structure to determine if

concentrations in soil warrant any remedial actions. Sampling will be performed utilizing the

bucket of the backhoe or other sampling equipment to preclude the need for field personnel to^ter the excavation. The samples collected will be analyzed for target Compound List (TCL)VOCs, TCL SVOCs, target analyte list (TAL) Metnls, and PCBs, utilizing NYSDEC analytical

JUN-01-98 ilON 10:56 ' p_ Qg/u

Dry Well Area Excavation

Work Plan

LockheedMartin CorporationGreat Neck, New York

NYSDEC Site No. 130045

May 19981.0 Introduction

This work plan describes the scope ofwork for the removal ofsoils and sludges locatedwithin and directly below three inactive dry wells at the Lockheed Martin Corporation(Lockheed Martin) site located at 365 Lakeville Road, Great Neck, New York (see Figure 1).The Lockheed Martin site has been listed by the New York State Department ofEnvironmentalConservation (NYSDEC) in the Registry of Inactive Hazardous Waste Disposal sites in NewYork Stale (Site No. 130045). The site is classified by NYSDEC as a Class 2 Site due to thepresence ofcontamination in soil and groundwater at the property.

In 1991, Unisys Corporation (aprevious owner of the site) entered into anAdministrativeOrder on Consent (W-1-0527-91-02) with NYSDEC which required implementation of IRMs forsoil and groundwater and the completion ofa remedial investigation/feasibility study (RI/ES). Agroundwater IRM utilizing granulated activated carbon filters was initiated in April of 1993. InJanuary 1994, the SVE system to address soil contamination in the Dry Well Area was initiated.This DryWell Areaconsists of tlircc intcrcoimected drywells located outside the east wall of tlicsoutheast oomor of the main building. Soil within and immediately beneath these three dry wellshavebeen found to contain volatile orgamc compounds (VOCs) at concentrations above the NewYork StateRecommended Soil Cleanup Objectives (NYSRSCOs).

In 1995, NYSDEC divided the site into two operable units for administrative purposes.OperableUnit 1 (OU-1) includes the 94 acre on-site project area owned by Lockheed Martin andOperable Unit 2 (OU-2) includes the off-siteareas immediately surrounding the site. The Recordof Decision (ROD) detailing the selected remedies for OU-1 was signed by the NYSDEC onMarch 31, 1997. The existing SVE IRM system was selected in the ROD as the permanentremedyfor the Dry WellArea soil. As a means ofsource removal, the soils within the dry wellsis to be removed to a depth of 30 feet below grade. Additionally, the ROD requires that asubsurface investigation be conducted to investigate the presence or absence of two other dry

-6

JUN-01-98 HON 10:55

Dry Well Area Excavation

Work Plan

Operable Unit 1

I^ockheed MartinCorporation(Former Unisys Corp. Site)

Great Neck, New York

NYSDEC Site No. 130045

TABLE OF CONTF.MT.S

1.0 Introduction

1.1 Objectives

2.0 Background Information

2.1 Site Location

2.2 Site History

3.0 Dry Well Area

3.1 System Description

3.2 Dry Well Soil Ajaalytical Data

4.0 Scope of Work

4.1 SoutheastLoadingBay Subsurface Investigation4.2 Dry Well Excavation

4.2.1 Confirmatory Soil Sampling

4.3 Phase I - Pre-Construction Activities

4.3.1 Local Permits

4.3.2 Subsurface Utility Mark-Outs

4.3.3 Waste Characterization and Waste Stream Approval

4.4 Phase n - Excavation Activities

4.4.1 Work Zone Delineation

4.4.1.1 Exclusion Zone

4.4.1.2 Contaminant Reduction Zone

4.4.1.3 Truck Staging Zone4.4.1.4 Clean/Support Zone

4.4.2 Temporary Shutdown of the SVE System

4.4.3 Sheeting

4.4.4 Excavation Activities

P. 03/11

May 1998

Page No.

1

2

2

2

3

3

3

4

5

5

6

6a

7

7

7

7

8

8

8

8

9

9

9

9

10

0S/02/199B 18:11 2019421333 H2M ASS(DCIATES INC

ti2MGHolzmacber, McLendon Si Murrell, P.C. » tCZM AlMoeiatct, Inc.H2MConstruction MnnsgemeiW, Inc. • H2M Lnb** Inc.

555 Preakness Avenue, Totowa, NJ 07512(201)942-0700 • PAX: (201)942-1333

DATE:

TIME:

NUMBER OF PAGES (Including cover Sheet);

, JTO Z, 1^.

TO

COMPANY;

FAX NUMBER:

FROM:

RE:

Girish Desai

New VpfH Smtfl

(516) 444-0^49

Sui Leono

Lockheed QreiH lite^ek

-rw

•iiy.'

PAGE 01

ACEC MwnbMr

Suppofthg ExtMlenc*in Bngmeering

COMMENTS:

As requested bv Bob Gilbert, tteehed te Paoe 10 (revleeCH Of^ Drv Wftll Area Exg^Y^flgnJg^lLEiaowhich was omitted from mv earilar fitx to vo^. Atfp, we've additional revisions tq Jabl,^ 1„tQinclude sampling of the soil removedfrorn the top 4 feet eurrouhtftno tllidrv VWlIf- Pl<>9Be cont^pt Bpb Gilbertwith any questions. Thanks. —

Please contact sender ifyoudo not receive ett pages or copy lefiPtPHONE: (201)942-0700

FAX: (201)942-1333

, i;.,;I'iiiiiiTii

S*!-' •' ,

; •

I li •''"""")€? %• " #

.3fll * .3<?S .'"!!'j>--"J'i-••••, v''• •••-:•; • , •. i •-i.'' '

; •- ' : :- .r V ,• .. :. :ffi,: : •• . • . - •

mf^o^ KA^

• t'K'

••>( • ; . :• 7 :. • , , •f^.3;:-S'' ,,•

- ,;•/• ••' . ^.... 'rr

A : •• •-: -••• :, ^v; '̂ ••7 -.C

•

.... ... -2

!'Vi7 '•.

• s-i:: p^^:" 7 •-:. t .,.im^Ad. •• •

-d-';.5?-'-7 •-• "ri'U-'.s:/ ''•:.

i? 'rr7s.7-

'••SiV •> • -;.. , ' •• ;

rjMh^z :••••• 77.

TABLE 1

SOIL AND QA/QC SAMPLE MATRIXLOCKHEED MARTIN

GREAT NECK, NEW YORK

SiaraplHig:::

Number

of Field

1 Sampka

Chemical

Aaalytes

Levy of

<mc

QA/QCSamples

EieH Tnp Blind MSmSDBlanda Blankii Duidieatet Samples

Tola!

Numlrer&fSmnpks

SoiillKast Loading Bay

Te^Pils*

4 TCLVOCs^TaSVOCs^TCLPe^ddes^PCB^s andTAL Metals^

ASPCLP 1 1^ 1 2 9

ftyWeU

Escsvibaas

3

{1 perEbywdl)

TCL SVOCs\ TCL Pesticidea/im^odTALMetak'

ASPCiT 1 NA 12 7

TopdFeetcfSoil

Around Dry Wdls

1 TaVOCs^TCLSVOCs^

TCL Pesticides '̂CB^s and TAL MeUls*

Re^poit

Only

1 0 0 3

DryWdlExcavatioos

3

(1 perDtrweil)

TCL VOCs' ReportOnly

0 3 1 0 7

Notes:

' Fourtealf^wtS beeSEcavriedHMire^niFessc^^lg^' TIte ateeipected tebeccedadad i& OK

^ AU sanies will bemdyaed Car T€L VOCa NYSDEC Me&od 95-1. Aaal^sts wiB iaciiuie Fhkui 113.

OiK2-<b ^aas jar isflte laparad coKlaiMr,

* AH saoc^sles will beanalyzed fffl TCL SVOCs using NYSDEC Mdbod 95-2,The holding time for TCL SVOCs is 5days fc^ extiactioii and 40 days for analysis tawi the samples nuist be cooled to 4®C foe jaeserratkBLOne4-oz glass jar istherequired containo:.

^ All samples will be analyzed for TCL Peslii'ide/PCBs uang NYSDEC Method 95-3The holding lime for TCL PCBs is 5days for extraction and 40 days for analysis and the i^piesmust be sooled to 4®C for preservationOne4-02 glass jar is she required container

" All samples wiL beanalyzed far TAl Metals using NYSDEC 200.7 CLP-M.The holding time tbi TAL Metals issixmonths.One4-02 glass jar istherequired container.

' All sample will beanalyzed for TCL VOCs using EPA Method 8240.Theholding time for TCL VOCs isseven days and thesamples muSbecooled to4'Cfarpreservation.One 2-02glass jar is therequired container.

LCXIK&aci 1'I>-ywefisMabie1

LDinm

GO

roo1--

CD4SN)l->

CjJtoGJ

Ito3

I>tnuioo

mtn

zo

TiI>CDm

csU)

06/02/1998 13:11 2019421333 H2M ASSOCIATES INC PAGE 02

H2MGROUP• Confirm the location of the two diy wells which are currently not accessible at grade,

• Allow for equipment maneuvering during installatioii of the steel sheeting boxes, and• Assist in the identification of any unknown undergroundutilities within the exclusion

zone, including piping that interconnects the three dry wells, prior to installing thesheeting. Any utilities within the top 4 feet of the excavation will be disconnected,and temporarily removed. Piping from the btrilding to Dry Well #1 will be removedand capped at the building exterior.

llie top 4 feet of soil from within the circumftarenco of each dry well will be loadeddirectly into trucks for off-site disposal. Soil from tile top 4 feet from around the outsideperimeter of the dry wells will be staged on plastic. The soil will be analyzed for TCL VOCs,TCL SVOCs, TAL Metals and TCL Pesticides/PCBs (report only format). The soil may bereused as fill if it does not exhibit signs of impact (based on attalytical results). Otherwise, thestaged soil will be combined with the dry well soil for off-site disposal.

4.4.4 Excavation Activities

Soil and sludge from within the 10 foot by 10 foot are^ sheeting box surrmmding eachdry well will be excavated utilizing a trackhoe excavator and clam shell crane with a verticalreach of at least 30 feet. The excavation will proceed to a depth of approximately 30 feet bgs.The total soil volume is estimated to be 474 tons, estimated based on the following:

Volume calculation: 10' x 10'30'deep

Formula; 10' x 10' x 30' « 3,00(j^ic feetAiry wellCubic feet/27 cubic feet = U 1.1 cubic yards/diy well

Soil density: 105 lbs. percubicfeet1cubic yard =• 27cubic feet

105 lbs. percu. ft. x 27 cu. ft. (1 cu. yd.) « 2,835 Ibs./cu. yd.

Density conversion: ? lbs, oer cubic vard - 1.42 tbns/cu. yd.2,000 lbs./ton

Soil volume; 111.1 cu. yd. x 1.42 - 158 tdttS/dry well

Total Volume: 158 tons/dry well x 3 dryweUs * 474tons

10