WA-1141_13374_CA_RPTS_20200911_MRP

3502HayesRoad•Monroe,NorthCarolina28110
113WestFiretowerRoad,SuiteG•Winterville,NorthCarolina28590
Phone(704)845-4010•(888)870-4133•Fax(704)845-4012



September
14,
2020



Mr.
Jared
Edwards

North
Carolina
Department
of

Environmental
Quality

Washington
Regional
Office

943
Washington
Square
Mall

Washington,
North
Carolina
27889



Re:
Ground
Water
Monitoring
Report


August
2020

Gurganus
Mobile

227
US
Highway
64
W

Plymouth,
Washington
County

North
Carolina

Incident
Number:
0-00-0000006307

Incident
Number:
13374

GRI
Project
No.
2461












Dear
Mr.
Edwards,



Please
find
enclosed
the
referenced
report,
for
the
above
mentioned
site.



If
you
have
any
questions,
please
contact
William
Regenthal
at
704-845-4010.





Sincerely,

GeologicalResources,Inc.
Leslie
Maxtone-Graham

Administrative
Assistant



Enclosure



Cc:
Ms.
Bea
Harrison;
Beasley
Enterprises,
Inc.
file





3502HayesRoad•Monroe,NorthCarolina28110
113WestFiretowerRoad,SuiteG•Winterville,NorthCarolina28590
Phone(704)845-4010•(888)870-4133•Fax(704)845-4012

Ground
Water
Monitoring
Report

August
2020

Gurganus
Mobil

277
US
Highway
64
W

Plymouth,
Washington
County

North
Carolina

Facility
ID
Number:
0-00-0000006307

Incident
Number:
13374

GRI
Project
Number:
2461






Prepared
for:



Mr.
C.
Wood
Beasley,
III

North
East
Oil
Company,
Inc.

Post
Office
Box
1386

Ahoskie,
North
Carolina
27910





September
11,
2020









William
Regenthal,
P.
G.

Project
Manager


Ethan
Rogerson,
GIT

Report
Writer



___________________________________________________________________________________________

Prepared
by:
Geological
Resources,
Inc.

Ground
Water
Monitoring
Report

Prepared
on:
September
11,
2020

Gurganus
Mobil

Project
Manager:
William
Regenthal,
P.
G.



GRI
Project
No.
2461

i

SITEINFORMATION
1.
SiteIdentification

Gurganus
Mobil
(Facility
ID
0-00-0000006307)


Incident
Number
13374
–
Intermediate
Risk
(I185D)


Location
of
Source
Area:
277
US
Highway
64
W


Plymouth,
NC
28314


Washington
County


35.8557698°N,
76.749449°W
(Topographical
Map)

2.
InformationaboutContactsAssociatedwiththeLeakingUSTSystem




USTOwner
North
East
Oil
Company,
Inc.

Post
Office
Box
1386

Ahoskie,
NC
27910

[e-mail]

252-398-6022



USTOperator
North
East
Oil
Company,
Inc.

Post
Office
Box
1386

Ahoskie,
NC
27910

[e-mail]

252-398-6022





Consultant/Contractor
Geological
Resources,
Inc.

3502
Hayes
Road

Monroe,
NC
28110

[e-mail]

704-845-4010



PropertyOwner
Raemona
L.
McCray

539
Marriner
Road

Roper,
NC
27970

Email
Unknown

252-217-7664




AnalyticalLaboratory
SGS
North
America,
Inc.

4405
Vineland
Road,
Suite
C-15

Orlando,
FL
32811

State
Certification
No.
573

407-425-6700



PropertyOccupant
Vacant








3.
InformationaboutRelease

Release
was
discovered
in
November
1994


An
unknown
amount
of
product
was
released
from
the
leaking
UST
System


Five
4,000-gallon
gasoline
USTs
were
removed
from
the
site
in
November
1994







___________________________________________________________________________________________

Prepared
by:
Geological
Resources,
Inc.

Ground
Water
Monitoring
Report

Prepared
on:
September
11,
2020

Gurganus
Mobil

Project
Manager:
William
Regenthal,
P.
G.



GRI
Project
No.
2461

ii

EXECUTIVESUMMARY
The
former
Gurganus
Mobil
site
is
located
at
277
US
Highway
64
W
in
Plymouth,
Washington
County,

North
Carolina.

The
site
is
currently
owned
by
Raemona
L.
McCray
and
was
formerly
operated
by
North

East
Oil
Company
as
a
petroleum
retail
facility.

The
site
is
currently
vacant.

Five
4,000-gallon
USTs
were

removed
from
the
site
in
November
1994.

The
adjoining
properties
are
a
mixture
of
multi-family

residential,
single
family
residential,
and
commercial
properties.

According
to
the
information

determined
during
receptor
survey
activities,
a
potable
water
supply
well
was
identified
within
1,000
feet

of
the
site,
however,
the
well
appears
to
be
up-gradient
of
the
release.

Public
water
is
available
to
the

site
and
surrounding
properties
within
a
1,500-foot
radius
of
the
site.



A
Corrective
Action
Plan
has
not
been
completed
for
the
incident.



Between
November
6
and
15,
2019,
soil
excavation
activities
were
performed
in
the
areas
of
MW-1,
MW-
2,
MW-3
and
MW-4.

A
total
of
736.14
tons
of
contaminated
soil
were
removed
from
the
site
in
November

2019.

A
total
of
239.66
tons
of
overburden
soil
were
surveyed
and
returned
to
the
excavation
area
as

backfill.



On
August
17,
2020,
four
Type
II
monitoring
wells
(MW-1R
through
MW-4R)
were
gauged,
purged
and

sampled
per
NCDEQ
guidelines.

No
free
product
was
observed
in
the
monitoring
wells
prior
to
sampling.


Concentrations
of
individual
BTEX
constituents,
MTBE,
naphthalene,
n-propylbenzene,
1,2,4-
trimethylbenzene
and/or
1,3,5-trimethylbenzene
that
exceeded
the
Maximum
Allowable
Concentrations

(MACs)
as
specified
in
T15A
NCAC
2L.0202
were
reported
in
the
ground
water
samples
collected
from

MW-1R
through
MW-4R.

A
concentration
of
benzene
that
exceeded
the
Gross
Contamination
Level
(GCL)

was
reported
in
the
ground
water
sample
collected
from
MW-3R.



The
total
contaminant
mass
has
reduced
by
approximately
29%
since
the
January
2020
ground
water

sampling
event.



Based
on
this
information,
semi-annual
ground
water
sampling
should
continue
at
the
site
until

contaminant
concentrations
are
reduced
to
below
the
GCLs.

The
next
ground
water
sampling
event
is

tentatively
scheduled
for
February
2021.


___________________________________________________________________________________________

Prepared
by:
Geological
Resources,
Inc.

Ground
Water
Monitoring
Report

Prepared
on:
September
11,
2020

Gurganus
Mobil

Project
Manager:
William
Regenthal,
P.
G.



GRI
Project
No.
2461

TABLEOFCONTENTS
SITEINFORMATION............................................................................................................................i

EXECUTIVESUMMARY.......................................................................................................................ii

1.0
SITEHISTORYANDCHARACTERIZATION...................................................................................1

2.0
PRESENTATIONOFCURRENTSITEASSESSMENTINFORMATION/COMPARISONTOHISTORICAL
ASSESSMENTINFORMATION...................................................................................................2

3.0
FREEPRODUCTREMOVAL........................................................................................................3

4.0
NATURALATTENUATION/NATURALSOURCEZONEDEPLETIONSTATUS..................................3

5.0
CONCLUSIONS.........................................................................................................................3

6.0
LIMITATIONS...........................................................................................................................4

7.0
STATEMENTSANDCERTIFICATION...........................................................................................4


FIGURES
Figure
1:
Site
Location
Map

Figure
2:
Site
Map

Figure
3:
Site
Vicinity
Map

Figure
4:
Water
Table
Surface
Map

Figure
5:
Ground
Water
Quality
Map

Figure
6:
Contaminant
Mass
Area
Map



TABLES
Table
1:

UST
Owner
and
Operator
Information

Table
2:

UST
System
Information

Table
3:

Adjacent
Property
Owner
Information

Table
4:

Water
Supply
Well
Information

Table
5:

Well
Construction
and
Gauging
Information

Table
6:

Summary
of
Ground
Water
Sample
Analytical
Results


APPENDICES
Appendix
A:

State
Correspondence

Appendix
B:
Laboratory
Report
–
Ground
Water
Samples

Appendix
C:
Contaminant
Mass
Calculations





___________________________________________________________________________________________

Prepared
by:
Geological
Resources,
Inc.

Ground
Water
Monitoring
Report

Prepared
on:
September
11,
2020

Gurganus
Mobil

Project
Manager:
William
Regenthal,
P.
G.



GRI
Project
No.
2461

1

1.0
SITEHISTORYANDCHARACTERIZATION
Geological
Resources,
Inc.
(GRI)
presents
the
results
of
the
August
2020
ground
water
sampling
event
at

the
Gurganus
Mobil
site.

The
site
is
located
at
277
US
Highway
64
W
in
Plymouth,
Washington
County,

North
Carolina
(Figure1).

These
activities
were
conducted
in
accordance
with
GRI
Proposal
No.
20-403,

which
was
submitted
to
the
North
Carolina
Department
of
Environmental
Quality
(NCDEQ)
on
August
3,

2020
and
was
approved
as
Task
Authorization
No.
13374-23
on
August
4,
2020.

State
correspondence

has
been
included
as
AppendixA.



The
site
is
currently
owned
by
Raemona
L.
McCray
and
was
formerly
operated
by
North
East
Oil
Company,

Inc.
as
a
petroleum
retail
facility.

The
property
is
now
vacant.

Five
4,000-gallon
gasoline
USTs
were

removed
from
the
site
in
November
1994,
confirming
a
release.

UST
owner/operator
information
and

UST
system
information
are
included
as
Tables1
and
2,
respectively.

The
Registered
Tank
Report
is
shown

below:




The
site
and
surrounding
area
is
a
mixture
of
multi-family
residential,
single
family
residential,
and

commercial
properties.

The
site
contains
one
building
and
is
primarily
capped
with
grass,
concrete
and

asphalt.

The
overall
topography
at
the
site
is
relatively
flat.

Twenty-six
Type
II
monitoring
wells
(MW-1

through
MW-5
and
MW-7
through
MW-27)
and
two
Type
III
monitoring
wells
(MWD-6
and
TW-1)
were

installed
at
the
site
during
previous
ground
water
assessment
activities.

A
Site
Map
showing
the
locations

of
the
monitoring
wells
and
the
structures
on-site
has
been
included
as
Figure2.



On
August
8,
2014,
GRI
personnel
conducted
an
updated
receptor
survey
at
the
site.

Two
water
supply

wells
(WSW-1
and
WSW-3)
were
identified
within
a
1,500-foot
radius
of
the
site.

One
potable
water

supply
well
(WSW-1)
was
identified
within
1,000
feet
of
the
site,
however,
the
well
appears
to
be
up-
gradient
of
the
release.

One
previously
identified
water
supply
well
(WSW-2)
was
found
to
have
been





___________________________________________________________________________________________

Prepared
by:
Geological
Resources,
Inc.

Ground
Water
Monitoring
Report

Prepared
on:
September
11,
2020

Gurganus
Mobil

Project
Manager:
William
Regenthal,
P.
G.



GRI
Project
No.
2461

2

destroyed
prior
to
the
August
2014
updated
receptor
survey
activities.

Municipal
water
is
available
to
the

site
and
surrounding
properties.

No
surface
water
bodies
were
identified
within
a
500-foot
radius
of
the

site.

The
site
lies
within
the
designated
wellhead
protection
area
for
the
Town
of
Plymouth.

Adjacent

property
owner
information
is
presented
in
Table3.

Water
supply
well
owner
information
is
presented

in
Table4.

A
Site
Vicinity
Map
showing
the
adjacent
properties
and
locations
of
water
supply
wells
has

been
included
as
Figure3.



During
the
November
2019
soil
excavation,
a
total
of
736.14
tons
of
contaminated
soil
was
removed
from

the
site.

Approximately
239.66
tons
of
overburden
soil
was
returned
to
the
excavation
basin
as
backfill.


Additionally,
clean
backfill
was
used
to
fill
the
excavation
basin
to
grade.

Asphalt
was
then
paved
on
top

of
the
excavation
area.



A
Corrective
Action
Plan
has
not
been
developed
for
this
incident.



2.0
PRESENTATIONOFCURRENTSITEASSESSMENTINFORMATION/COMPARISONTOHISTORICAL
ASSESSMENTINFORMATION
On
August
17,
2020,
four
Type
II
monitoring
wells
(MW-1R
through
MW-4R)
gauged,
purged
and
sampled

per
NCDEQ
guidelines.

No
free
product
was
observed
during
the
August
2020
ground
water
sampling

activities.

Depths
to
ground
water
in
the
Type
II
monitoring
wells
ranged
from
4.59
feet
to
5.36
feet
below

the
tops
of
well
casings.

Ground
water
elevations
in
the
Type
II
monitoring
wells
ranged
from
95.20
feet

to
92.35
feet.

Ground
water
flow
was
generally
to
the
southeast
with
a
horizontal
gradient
of

approximately
0.03
feet
per
foot.

The
vertical
gradient
was
not
calculated,
since
MWD-6
and
TW-1
have

been
destroyed
and/or
abandoned.

Well
construction
and
gauging
information
is
presented
in
Table5.


A
Ground
Water
Flow
Map
based
on
the
Type
II
monitoring
wells
is
included
as
Figure4.


A
summary
of

the
current
ground
water
gauging
data
is
shown
below:

WellID
Screened
Interval








(x
to
y
ft.

BGS)
Bottom
ofWell
(ft.
BGS)
Topof
Casing
Elevation
(ft.)
Depthto
Waterfrom
TopofCasing
(feet)
Free
Product
Thickness
(ft.)
Ground
Water
Elevation
(ft.)
MW-1R
4
-
9
9
100.18
5.27
---
94.91

MW-2R
4
-
9
9
100.84
4.59
---
96.25

MW-3R
4
-
9
9
100.83
5.29
---
95.54

MW-4R
4
-
9
9
99.93
5.36
---
94.57



Ground
water
samples
collected
from
the
monitoring
wells
were
submitted
for
laboratory
analyses
using

EPA
Method
6200B.
Concentrations
of
individual
BTEX
constituents,
MTBE,
naphthalene,
n-
propylbenzene,
1,2,4-trimethylbenzene
and/or
1,3,5-trimethylbenzene
that
exceeded
the
Maximum

Allowable
Concentrations
(MACs)
as
specified
in
T15A
NCAC
2L.0202
were
reported
in
the
ground
water

samples
collected
from
MW-1R
through
MW-4R.

Concentrations
of
benzene
that
exceeded
the
Gross

Contamination
Level
(GCL)
was
reported
in
the
ground
water
sample
collected
from
MW-3R.

A
summary

of
the
analytical
results
for
ground
water
samples
collected
on
August
17,
2020,
is
presented
in
Table6.


A
Ground
Water
Quality
Map
based
on
the
August
2020
data
is
included
as
Figure5.

A
complete
report





___________________________________________________________________________________________

Prepared
by:
Geological
Resources,
Inc.

Ground
Water
Monitoring
Report

Prepared
on:
September
11,
2020

Gurganus
Mobil

Project
Manager:
William
Regenthal,
P.
G.


GRI
Project
No.
2461

3

of
laboratory
analyses
of
the
ground
water
samples
collected
from
the
monitoring
wells
during
the
August

2020
sampling
event
has
been
included
as
AppendixB.

A
summary
of
the
current
ground
water
analytical

data
is
shown
below:



Contaminant
ofConcernBenzeneTolueneEthylbenzeneXylenesMTBENaphthaleneWell
ID
MACs(mg/l)1600600500206
GCL(mg/l)5,000
260,000
84,500
85,500
20,000
6,000

MW-1R
901112926
1,54013.0
135
MW-2R
4.91.9
2.9
1.8
0.90

3.7

MW-3R
5,440
29,3002,82013,600176J934
MW-4R
419
7.4
J
693580<2.5
343


The
baseline
contaminant
mass
at
the
site
was
determined
based
on
the
total
BTEX,
MTBE
and

naphthalene
concentrations
from
the
January
2020
ground
water
sampling
event
as
well
as
the
maximum

historical
water
column
height
observed
in
the
excavation
area.

The
total
contaminant
mass
at
the
site

has
decreased
by
29%
since
January
2020.

Contaminant
mass
reduction
calculations
have
been
included

as
AppendixC.

A
map
of
the
contaminant
mass
area
has
been
included
as
Figure6.

A
chart
depicting
the

overall
trend
in
contaminant
mass
is
shown
below:




The
site
is
located
in
the
Coastal
Plain
Physiographic
Province
of
North
Carolina.

The
water
table
has
a

seasonal
high
depth
to
water
of
approximately
four
to
six
feet
below
ground
surface
(bgs).

3.0
FREEPRODUCTREMOVAL
Free
product
has
historically
been
present
in
MW-1
through
MW-4.

Five
MMPE
events
were
conducted

at
the
site
between
December
2008
and
May
2015.

A
total
of
79,039.65
gallons
of
fluids,
including





___________________________________________________________________________________________

Prepared
by:
Geological
Resources,
Inc.

Ground
Water
Monitoring
Report

Prepared
on:
September
11,
2020

Gurganus
Mobil

Project
Manager:
William
Regenthal,
P.
G.



GRI
Project
No.
2461

4

1,133.40
gallons
of
liquid
and
vapor
phase
free
product
have
been
recovered
during
past
MMPE
events.


Free
product
was
not
detected
at
the
site
during
the
current
gauging
and
sampling
event.

4.0
NATURALATTENUATION/NATURALSOURCEZONEDEPLETIONSTATUS
MMPE
events
have
been
conducted
at
the
site
as
the
primary
method
of
corrective
action.

Since
a
CAP

has
not
been
developed
for
the
incident,
no
natural
attenuation
monitoring
plan
is
currently
in
place
at

the
site.

5.0
CONCLUSIONS

On
August
17,
2020,
four
Type
II
monitoring
wells
were
gauged,
purged
and
sampled.

Free

product
was
not
observed.

Ground
water
flow
was
generally
to
the
southeast
with
a
horizontal

gradient
of
approximately
0.03
feet
per
foot.


Concentrations
of
individual
BTEX
constituents,
MTBE,
naphthalene,
n-propylbenzene,
1,2,4-
trimethylbenzene
and/or
1,3,5-trimethylbenzene
that
exceeded
the
MACs
were
reported
in
the

ground
water
samples
collected
from
MW-1R
through
MW-4R.

A
concentration
of
benzene
that

exceeded
the
GCL
was
reported
in
the
ground
water
sample
collected
from
MW-3R.


The
contaminant
mass
at
the
site
has
been
reduced
by
29%
since
January
2020.


Based
on
this
information,
the
risk
classification
for
the
site
should
remain
intermediate
risk.

The

soil
excavation
activities
appear
to
have
been
successful
in
removing
free
product
from
the
site.




Semi-annual
ground
water
sampling
should
continue
at
the
site
until
contaminant
concentrations

are
reduced
to
below
the
GCLs.

The
next
sampling
event
is
tentatively
scheduled
for
February

2021.

6.0
LIMITATIONS
This
report
has
been
prepared
for
the
exclusive
use
of
North
East
Oil
Company,
Inc.
for
specific
application

to
the
referenced
site
in
Washington
County,
North
Carolina.

The
assessment
was
conducted
based
on

the
scope
of
work
and
level
of
effort
desired
by
NCDEQ
and
with
resources
adequate
only
for
that
scope

of
work.
Our
findings
have
been
developed
in
accordance
with
generally
accepted
standards
of

environmental
practices
in
the
State
of
North
Carolina,
available
information,
and
our
professional

judgment.

No
other
warranty
is
expressed
or
implied.



The
data
that
are
presented
in
this
report
are
indicative
of
conditions
that
existed
at
the
precise
locations

sampled
and
at
the
time
the
samples
were
collected.

In
addition,
the
data
obtained
from
samples
would

be
interpreted
as
being
meaningful
with
respect
to
parameters
indicated
in
the
laboratory
report.

No

additional
information
can
logically
be
inferred
from
these
data.

7.0
STATEMENTSANDCERTIFICATION
1Enterthedatethemonitoringreportwasdue.n/aWillthisreportbesubmittedafterthe
establishedduedate?
YES
NO

2Wasanyrequiredinformationfromtheabovetemplatemissingfromthisreport?YES
NO








FIGURES 
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TABLES 
UST ID Number 1-5 Facility ID Number
Owner or Operator?
Owner
Name of Owner or Operator Dates of Ownership / Operation
TABLE 1
UST OWNER/OPERATOR INFORMATION
GURGANUS MOBIL (INCIDENT NO. 13374)
00-0-006307
E T Six, Inc. 03/08/1965 - 11/21/1994
Address Telephone Number
Post Office Box 1386, Ahoskie, NC 27910 252-862-0236
Page 1 of 1
Date: 11/05/19
Was Release
Associated
with UST
System?
(Yes / No)
1 Gasoline 4,000 03/08/1965 Single Wall Steel 64" x 24' Single Wall Steel
Removed
(11/21/1994)Yes
2 Gasoline 4,000 03/08/1965 Single Wall Steel 64" x 24' Single Wall Steel
Removed
(11/21/1994)Yes
3 Gasoline 4,000 03/08/1965 Single Wall Steel 64" x 24' Single Wall Steel
Removed
(11/21/1994)Yes
4 Gasoline 4,000 03/08/1965 Single Wall Steel 64" x 24' Single Wall Steel
Removed
(11/21/1994)Yes
5 Gasoline 4,000 03/08/1965 Single Wall Steel 64" x 24' Single Wall Steel
Removed
(11/21/1994)Yes
TABLE 2
UST SYSTEM INFORMATION
GURGANUS MOBIL (INCIDENT NO. 13374)
Facility ID #: 0-006307
UST
ID
No.
Current
or Most
Recent
Contents
Capacity
(gallons)
Date
Installed
Construction
Details
Tank
Dimensions
Description of
Associated
Product Piping
and
Pumps
Status
of
UST
Page 1 of 1
Date: 02/05/2020
Raemona Lizzette McCray
Kenneth D. & Patricia B. Futrell
Pine Forest NC, LLC
Roadtrip Motel, LLC
Quality Oil Company, LLC.
Little, Dickenson & Spruill
Note:
• Properties are keyed to Figure 3.
6767-74-1121 241 US Highway 64, West
Plymouth, NC 27962
6767-64-7197 1540 Silas Creek Parkway
Winston-Salem, NC 27127
6767-64-6052 1363 Brunswick Avenue
Norfolk, VA 23508
6767-63-9999 (SITE)539 Marriner Road
Roper, NC 27970
6767-63-9806 2931 US Highway 32, South
Plymouth, NC 27962
6767-73-2758 2021 Cross Beam Drive
Charlotte, NC 28217
TABLE 3
ADJACENT PROPERTY OWNERS
GURGANUS MOBIL (INCIDENT NO. 13374)
Tax Parcel Number/ Map ID Owner/ Occupant Name
(Last , First MI)Address
Facility ID # : 0-006307
Date : 02/05/2020
Well ID. Parcel ID No. Well Owner Address
Phone
Number
Well Use
(Potable/Agricultural,
etc.)
Well
Depth
(ft. BGS)
Type of Well
(Drilled/
Bored)
Well Casing
Depth
(ft. BGS)
Well Screen
Interval
(x to y ft. BGS)
Distance from
source area of
release
(ft.)
WSW-1 6767-63-7158 Odessa Yanisha Mann
319 West Avenue
Plymouth, NC 27962 NA Potable NA NA NA NA ~815 S
WSW-2 6767-73-2245 Billy R. and Sharon W. Maitland
Post Office Box 145
Creswell, NC 27928 NA Destroyed NA NA NA NA ~760 S
WSW-3 6767-74-9771 Donnie William Tenney
2009 S Shore Drive
Surf City, NC 28445 NA Non-Potable NA NA NA NA ~1,180 NE
• ft. BGS: Feet below ground surface.
Facility ID #: 0-006307
TABLE 4
WATER SUPPLY WELL INFORMATION
GURGANUS MOBIL (INCIDENT NO. 13374)
Note:
• Water supply wells are keyed to Figure 3.
• NA: Data not available.
Page 1 of 1
04/22/08 6.38 0.00 93.6212/07/08 7.54 0.04 92.49 Pre-MMPE12/11/08 8.04 0.03 91.99 Post-MMPE12/23/08 7.30 0.02 92.7202/08/10 5.23 2.79 97.16 Pre-MMPE02/12/10 5.90 0.00 94.10 Post-MMPE03/17/10 6.00 3.09 96.6510/11/10 6.32 0.57 94.17 Pre-MMPE10/15/10 6.87 0.00 93.13 Post-MMPE06/26/12 5.95 0.17 94.2010/15/13 6.26 0.76 94.3908/04/14 6.45 0.30 93.81 Pre-MMPE08/08/14 6.56 0.00 93.44 Post-MMPE05/18/15 5.99 1.08 94.94 Pre-MMPE05/22/15 7.02 0.00 92.98 Post-MMPE06/17/15 5.79 0.14 94.3304/02/18 6.07 1.52 95.2310/03/18 5.88 0.72 94.7411/06/19 6.30 0.00 93.70 Destroyed01/27/20 6.20 0.00 93.9808/17/20 5.27 0.00 94.9104/22/08 6.40 0.00 93.5612/07/08 7.50 0.03 92.49 Pre-MMPE12/11/08 7.95 0.02 92.03 Post-MMPE12/23/08 7.25 0.05 92.7502/08/10 3.14 0.09 96.90 Pre-MMPE02/12/10 6.13 0.00 93.83 Post-MMPE03/17/10 3.50 0.00 96.4610/11/10 5.77 0.00 94.19 Pre-MMPE10/15/10 6.85 0.00 93.11 Post-MMPE06/26/12 6.00 0.27 94.1910/15/13 5.98 0.37 94.3008/04/14 6.22 0.09 93.82 Pre-MMPE08/08/14 6.50 0.00 93.46 Post-MMPE05/18/15 5.26 0.26 94.92 Pre-MMPE05/22/15 7.16 0.00 92.80 Post-MMPE06/17/15 5.67 0.06 94.3404/02/18 5.06 0.34 95.1910/03/18 5.53 0.40 94.7711/06/19 6.28 0.00 93.68 Destroyed01/27/20 5.64 0.00 95.2008/17/20 4.59 0.00 96.2504/22/08 6.40 0.00 93.5212/07/08 7.50 0.02 92.44 Pre-MMPE12/11/08 8.00 0.00 91.92 Post-MMPE12/23/08 7.27 0.03 92.6802/08/10 3.25 0.00 96.67 Pre-MMPE02/12/10 NM NM NM Post-MMPE03/17/10 3.95 0.39 96.3010/11/10 5.75 0.00 94.17 Pre-MMPE10/15/10 6.83 0.00 93.09 Post-MMPE06/26/12 5.92 0.07 94.0610/15/13 5.87 0.06 94.1008/04/14 6.37 0.07 93.61 Pre-MMPE08/08/14 6.62 0.00 93.30 Post-MMPE05/18/15 5.57 0.64 94.90 Pre-MMPE05/22/15 7.04 0.00 92.88 Post-MMPE06/17/15 5.83 0.24 94.3004/02/18 5.14 0.38 95.1110/03/18 5.09 0.02 94.8511/06/19 6.33 0.03 93.62 Destroyed01/27/20 5.65 0.00 95.1808/17/20 5.29 0.00 95.54
100.189.04-94MW-1R 01/27/20
100.849.04-9401/27/20MW-2R
99.968.53.5-8.53.505/29/96MW-2
05/29/96MW-3 99.92
100.839.04-9
8.53.5-8.53.5
401/27/20MW-3R
TABLE5
WELLCONSTRUCTIONANDGAUGINGINFORMATION
GURGANUSMOBIL(INCIDENTNO.13374)
Date:09/08/2020 FacilityID#:0-006307
100.008.53.5-8.5
Topof
Casing
Elevation*
(ft.)
Depthto
Waterfrom
TopofCasing
(ft.)
FreeProduct
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
CommentsWell
ID
Date
Installed
(m/dd/yy)
DateWater
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft.BGS)
Screened
Interval
(xtoyft.
BGS)
Bottom
ofWell
(ft.BGS)
3.505/29/96MW-1
Page1of4
TABLE5
WELLCONSTRUCTIONANDGAUGINGINFORMATION
GURGANUSMOBIL(INCIDENTNO.13374)
Date:09/08/2020 FacilityID#:0-006307
Topof
Casing
Elevation*
(ft.)
Depthto
Waterfrom
TopofCasing
(ft.)
FreeProduct
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
CommentsWell
ID
Date
Installed
(m/dd/yy)
DateWater
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft.BGS)
Screened
Interval
(xtoyft.
BGS)
Bottom
ofWell
(ft.BGS)
04/22/08 NM NM NM NotLocated12/07/08 7.16 0.02 92.45 Pre-MMPE12/11/08 7.77 0.00 91.82 Post-MMPE12/23/08 6.93 0.03 92.6902/08/10 2.81 0.00 96.78 Pre-MMPE02/12/10 NM NM NM Post-MMPE03/17/10 3.20 0.00 96.3910/11/10 5.48 0.00 94.11 Pre-MMPE10/15/10 6.28 0.00 93.31 Post-MMPE06/26/12 5.54 0.00 94.0510/15/13 5.52 0.00 94.0705/18/15 4.79 0.10 94.89 Pre-MMPE05/22/15 4.87 0.00 94.72 Post-MMPE06/17/15 5.24 0.00 94.3504/02/18 4.90 0.00 94.6910/03/18 4.81 0.02 94.8011/06/19 5.95 0.00 93.64 Destroyed01/27/20 7.58 0.00 92.3508/17/20 5.36 0.00 94.5704/22/08 6.70 0.20 93.4812/07/08 7.86 0.39 92.48 Pre-MMPE12/11/08 8.90 0.04 91.14 Post-MMPE12/23/08 7.40 0.09 92.6902/08/10 3.26 0.00 96.75 Pre-MMPE02/12/10 3.85 0.00 96.16 Post-MMPE03/17/10 5.68 0.04 94.3610/11/10 5.28 0.00 94.73 Pre-MMPE10/15/10 6.62 0.00 93.39 Post-MMPE06/26/12 5.95 0.00 94.0610/15/13 4.80 0.00 95.2106/17/15 4.87 0.00 95.1404/02/18 3.69 0.00 96.3210/03/18 4.76 0.00 95.2504/22/08 3.65 0.00 96.0412/07/08 7.28 0.02 92.43 Pre-MMPE12/11/08 7.82 0.00 91.87 Post-MMPE12/23/08 7.12 0.09 92.6502/08/10 2.82 0.00 96.87 Pre-MMPE02/12/10 NM NM NM Post-MMPE03/17/10 3.38 0.00 96.3110/11/10 5.38 0.00 94.31 Pre-MMPE10/15/10 7.31 0.00 92.38 Post-MMPE06/26/12 5.71 0.00 93.9810/15/13 5.64 0.00 94.0506/17/15 5.39 0.00 94.3010/03/18 5.00 0.00 94.6911/06/19 5.97 0.00 93.72 Abandoned04/22/08 4.34 0.00 95.6612/23/08 7.24 0.00 92.7603/17/10 3.31 0.00 96.6906/26/12 5.74 0.00 94.2610/15/13 5.39 0.00 94.6106/17/15 5.67 0.00 94.3304/02/18 4.71 0.00 95.2904/22/08 6.44 0.00 93.7012/23/08 7.54 0.00 92.6003/17/10 3.82 0.00 96.3206/26/12 6.10 0.00 94.0410/15/13 5.92 0.00 94.2206/17/15 5.88 0.00 94.2604/02/18 5.14 0.00 95.0004/22/08 6.85 0.00 93.6012/23/08 7.90 0.00 92.5503/17/10 4.05 0.00 96.4006/26/12 6.41 0.00 94.0410/15/13 6.37 0.00 94.0806/17/15 6.13 0.00 94.3204/22/08 5.85 0.00 93.7812/23/08 7.02 0.00 92.6103/17/10 3.20 0.00 96.4306/26/12 5.53 0.00 94.1010/15/13 5.50 0.00 94.1306/17/15 5.29 0.00 94.3404/02/18 4.54 0.00 95.09
9.04-9401/27/20MW-4R
MW-10 10/25/00 5 5-10 10 99.63
MW-9 10/18/00 5 5-15 15 100.45
MW-8 10/18/00 5 5-15 15 100.14
MW-7 10/18/00 5 5-15 15 100.00
30
MW-5 05/29/96 3.5 3.5-8.5 8.5 100.01
10/25/00MWD-6
99.598.53.5-8.53.505/29/96MW-4
99.693530-35
99.93
Page2of4
TABLE5
WELLCONSTRUCTIONANDGAUGINGINFORMATION
GURGANUSMOBIL(INCIDENTNO.13374)
Date:09/08/2020 FacilityID#:0-006307
Topof
Casing
Elevation*
(ft.)
Depthto
Waterfrom
TopofCasing
(ft.)
FreeProduct
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
CommentsWell
ID
Date
Installed
(m/dd/yy)
DateWater
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft.BGS)
Screened
Interval
(xtoyft.
BGS)
Bottom
ofWell
(ft.BGS)
04/22/08 5.14 0.00 92.5612/23/08 6.27 0.00 91.4303/17/10 2.73 0.00 94.9706/26/12 4.90 0.00 92.8010/15/13 4.86 0.00 92.8406/17/15 4.79 0.00 92.9104/02/18 3.82 0.00 93.8810/03/18 4.09 0.00 93.6104/22/08 5.41 0.00 93.5612/23/08 6.46 0.00 92.5103/17/10 2.96 0.00 96.0106/26/12 5.12 0.00 93.8510/15/13 5.05 0.00 93.9206/17/15 5.00 0.00 93.9704/02/18 6.19 0.00 92.7804/22/08 5.02 0.00 94.0612/23/08 6.64 0.00 92.4403/17/10 2.95 0.00 96.1306/26/12 5.21 0.00 93.8710/15/13 5.22 0.00 93.8606/17/15 5.08 0.00 94.0004/02/18 4.29 0.00 94.7910/03/18 4.66 0.00 94.4204/22/08 NM NM NM NotLocated12/23/08 7.03 0.00 91.9903/17/10 3.55 0.00 95.4706/26/12 5.64 0.00 93.3810/15/13 5.42 0.00 93.6006/17/15 5.72 0.00 93.3004/02/18 4.73 0.00 94.29MW-15 05/15/12 04/22/08 5 5-15 15 100.42 NM NM NM NotLocated12/23/08 7.78 0.00 92.6003/17/10 4.06 0.00 96.3206/26/12 6.35 0.00 94.0310/15/13 6.32 0.00 94.0606/17/15 6.13 0.00 94.2504/02/18 5.37 0.00 95.0104/22/08 5.83 0.00 93.3812/23/08 6.75 0.00 92.4603/17/10 3.33 0.00 95.8806/26/12 5.46 0.00 93.7510/15/13 5.44 0.00 93.7706/17/15 5.36 0.00 93.8504/22/08 5.37 0.00 93.3812/23/08 6.38 0.00 92.3703/17/10 3.00 0.00 95.7506/26/12 5.06 0.00 93.6910/15/13 5.01 0.00 93.7406/17/15 4.95 0.00 93.8004/02/18 4.17 0.00 94.5810/03/18 4.53 0.00 94.2203/17/10 3.60 0.00 95.6806/26/12 5.62 0.00 93.6610/15/13 5.63 0.00 93.6506/17/15 5.53 0.00 93.7503/17/10 1.00 0.00 98.7806/26/12 NM NM NM NotLocated10/15/13 5.87 0.00 93.9106/17/15 NM NM NM NotLocated03/17/10 2.16 0.00 97.8006/26/12 5.85 0.00 94.1110/15/13 5.96 0.00 94.0006/17/15 5.74 0.00 94.2204/02/18 4.68 0.00 95.2803/17/10 3.72 0.00 96.9806/26/12 6.71 0.00 93.9910/15/13 6.62 0.00 94.0806/17/15 6.41 0.00 94.2904/02/18 5.55 0.00 95.1503/17/10 4.84 0.00 96.3406/26/12 7.21 0.00 93.9710/15/13 7.04 0.00 94.1406/17/15 7.07 0.00 94.11
MW-22 02/12/10 2 2-12 12 101.18
MW-21 02/11/10 2 2-12 12 100.70
MW-20 02/11/10 1 1-9 9 99.96
MW-19 02/11/10 1 1-9 9 99.78
MW-18 02/11/10 2 2-12 12 99.28
MW-17 12/13/02 5 5-15 15 98.75
MW-16 12/13/02 5 5-15 15 99.21
MW-15R 11/07/08 5 5-15 15 100.38
MW-14 05/15/02 5 5-15 15 99.02
MW-13 05/15/02 5 5-15 15 99.08
MW-12 05/15/02 5 5-15 15 98.97
MW-11 05/15/02 5 5-15 15 97.70
Page3of4
TABLE5
WELLCONSTRUCTIONANDGAUGINGINFORMATION
GURGANUSMOBIL(INCIDENTNO.13374)
Date:09/08/2020 FacilityID#:0-006307
Topof
Casing
Elevation*
(ft.)
Depthto
Waterfrom
TopofCasing
(ft.)
FreeProduct
Thickness**
(ft.)
Ground
Water
Elevation*
(ft.)
CommentsWell
ID
Date
Installed
(m/dd/yy)
DateWater
Level
Measured
(mm/dd/yy)
Well
Casing
Depth
(ft.BGS)
Screened
Interval
(xtoyft.
BGS)
Bottom
ofWell
(ft.BGS)
06/26/12 5.80 0.00 93.6710/15/13 5.71 0.00 93.7606/17/15 5.68 0.00 93.7906/26/12 5.89 0.00 93.6710/15/13 5.52 0.00 94.0406/17/15 5.67 0.00 93.8910/15/13 7.07 0.00 93.9406/17/15 6.96 0.00 94.0506/17/15 5.36 0.00 94.0804/02/18 4.62 0.00 94.8206/17/15 4.94 0.00 93.9904/02/18 4.13 0.00 94.8010/03/18 4.51 0.00 94.4203/17/10 4.37 0.00 95.7710/11/10 6.07 0.00 94.07 Pre-MMPE10/15/10 7.21 0.00 92.93 Post-MMPE06/26/12 6.17 0.00 93.9710/15/13 6.13 0.00 94.0106/17/15 5.86 0.00 94.28MW(QO)-1 Unknown 03/17/10 NA NA NA NM 4.68 0.00 NMMW(QO)-5 Unknown 03/17/10 NA NA NA NM 2.35 0.00 NMMW(QO)-8 Unknown 03/17/10 NA NA NA NM 4.85 0.00 NMTMW-1 10/15/13 10/15/13 2 2-12 12 NM 5.23 0.00 NMTMW-1G 06/16/15 06/17/15 2 2-12 12 104.60 8.65 0.00 95.95TMW-2G 06/16/15 06/17/15 2 2-12 12 104.21 5.36 0.00 98.85
•Referencepointfortop-of-casingelevationmeasurementsisanassumedelevationof100.00feet.
•Iffreeproductpresentinwell,groundwaterelevationcalculatedby:[TopofCasingElevation-DepthtoWater]+[freeproductthicknessx
0.8581].
•ftBGS:feetbelowgroundsurface.
•Wellconstructioninformationobtainedfromhistoricalwellrecords;Historicaltop-of-casingelevationsforMW-1throughMW-17wereobtained
fromhistoricaltablesduringfilereview.
•NM:Notmeasured.
•NA:Wellconstructioninformationnotavailable.
•TMW-1wasabandonedon10/15/13;TMW-1GandTMW-2Gwereabandonedon06/18/15.
MW-26 06/16/15 2 2-10 10 99.44
MW-25 10/15/13 2
TW-1 02/17/10 45 45-50 50 100.14
MW-27 06/16/15 2 2-12 12 98.93
2-12 12 101.01
MW-24 06/26/12 2 2-12 12 99.56
MW-23 06/26/12 2 2-12 12 99.47
Page4of4
Date:09/08/2020
EPA
Method
504.1
EPA
Method
6010B
WellIDDateCollected(mm/dd/yy)1 600 600 500 20 6 70 70 70 70 25 70 70 400 400 0.02 15 400 700 2005,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 25,000 70,000 11,700 30,000 70,000 28,500 25,000 50 15,000 NE NE NE04/22/08 19,900 61,700 9,970 54,500 <60 2,790 620 245I 755 465I 630 2,400 290IV 16,700 4,610 30.85 244 59,400 5,400 18,20012/23/08 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP03/17/10 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP06/26/12 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP10/16/13 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP06/17/15 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP04/02/18 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP10/03/18 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP01/27/20 1,860 1,520 517 7,730 <13
149<13 <13 16.5J <13<13 50.5 <13
949 289 NR NR NR NR NR08/17/20 901 112 926 1,540 13.0 135 <3.1
<3.1
24.3 20.6 <3.1
60.1 <3.1
486417NR NR NR NR NR04/22/08 17,600 43,500 3,960 22,500 2,070 900 18.4
I <9.4 121 311 33.4 300 52.6 2,710 610 9.58 87.9 63,600 5,900 17,00012/23/08 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP03/17/10 7,420 40,200 11,900 89,100 463J 23,500 8,330 1,210 1,620 <200 698J 7,670 <240 82,400 19,900 4.47 59.3 26,000 62,620 32,70006/26/12 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP10/16/13 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP06/17/15 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP04/02/18 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP10/03/18 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP01/27/20 2126,0501,8009,790<25
403<25 <25 65.6
J <25
<25 230<25
1,850525NR NR NR NR NR08/17/20 4.9 1.9 2.9 1.8 0.9 3.7 0.33
J 0.28
J 0.75 0.85 0.16
J 1.1 <0.13
9.6 4.4 NR NR NR NR NR04/22/08 8,400 28,400 6,860 36,400 <60 3,020 575 265I 645 210I 640 2,210 245IV 14,600 4,160 1.32 22.2 39,000 5,300 16,10012/23/08 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP03/17/10 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP06/26/12 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP10/16/13 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP06/17/15 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP04/02/18 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP10/03/18 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP01/27/20 9,60025,4002,71014,300279J 453J <130 <130 <130
<130
<130 250J <130
1,730524NR NR NR NR NR08/17/20 5,440 29,300 2,820 13,600 176J 934 <130
<130
<130
<130
<130
229J <130
1,680 520 NR NR NR NR NR04/22/08 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS12/23/08 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP03/17/10 3,330 9,940 1,630 11,200 <125 584 210J <70.0 128J 230J <100 293J <120 2,910 888 0.141 101 7,270 5,890 9,37006/26/12 15,500 33,400 3,230 15,690 307J 541 <100 <100 <100 598 <100 257J <100 1,750 479J 0.94 19.1 49,500 19,100 11,30010/16/13 17,500 34,700 3,770 22,000 399 723 <20 <20 84.4J 942 <20 342 22.4
J 2,660 601 NR 6.8 33,000 <3,500 7,880J06/17/15 11,100 24,300 2,580 16,200 349 651 <72
<69
90.0J 622 <61
302 <60
2,760 714 NR NR NR NR NR04/02/18 5,56017,7004,76018,00045.4J 1,9004752064661821401,52026.8
J 5,1603,710NR NR NR NR NR10/03/18 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP01/27/20 6,310271
5,19019,20064.0J 1,45072.8J 42.1
J 200182<25 647<25
5,8001,600NR NR NR NR NR08/17/20 419 7.4
J 693 580 <2.5
343 33.9 16.5 44.8 5.6
J 7.3
J 154<2.5
834245
NR NR NR NR NRIsopropylbenzeneIPEp-IsopropyltolueneContaminantofConcernBenzeneTABLE6SUMMARYOFGROUNDWATERSAMPLEANALYTICALRESULTSGURGANUSMOBIL(INCIDENTNO.13374)
FacilityID#:0-006307
AnalyticalMethodEPAMethod6200B MADEPMethodVPH
XylenesMTBEMW-1
MW-2
MW-3
MW-4
MW-1R
MW-2R
MW-3R
MW-4R C5-C8AliphaticsC9-C12AliphaticsC9-C10Aromatics2LStandard(mg/l)GCL(mg/l)n-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneEDBLeadNaphthalenen-Butylbenzenesec-ButylbenzeneTolueneEthylbenzenePage1of5
Date:09/08/2020
EPA
Method
504.1
EPA
Method
6010B
WellIDDateCollected(mm/dd/yy)1 600 600 500 20 6 70 70 70 70 25 70 70 400 400 0.02 15 400 700 2005,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 25,000 70,000 11,700 30,000 70,000 28,500 25,000 50 15,000 NE NE NEIsopropylbenzeneIPEp-IsopropyltolueneContaminantofConcernBenzeneTABLE6SUMMARYOFGROUNDWATERSAMPLEANALYTICALRESULTSGURGANUSMOBIL(INCIDENTNO.13374)
FacilityID#:0-006307
AnalyticalMethodEPAMethod6200B MADEPMethodVPH
XylenesMTBEC5-C8AliphaticsC9-C12AliphaticsC9-C10Aromatics2LStandard(mg/l)GCL(mg/l)n-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneEDBLeadNaphthalenen-Butylbenzenesec-ButylbenzeneTolueneEthylbenzene04/22/08 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP12/23/08 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP03/17/10 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP06/26/12 1,950 5,290 2,010 9,720 <26 505 34.5
J 21.1
J 104 40.0
J <20 376 <20 3,120 773 <0.0095 5.3 9,210 18,700 17,10010/16/13 851 2,670 1,870 9,380 <10 551 33.6
J 24.3
J 106 <10 18.4
J 491 <10 3,330 805 NR <5.0 3,870 3,140J 11,70006/17/15 1,200 2,090 1,110 7,300 26.7J 586 18.0
J <14
63.6 33.3
J 19.2
J 206 <12
2,430 883 NR NR NR NR NR04/02/18 280353
7583,420<6.3
41454.2
33.1
97.8<6.3
37.1305<6.3
2,370736NR NR NR NR NR
10/03/18 1,0707621,3305,91011.6
J 60144.5
30.2
10426.8
30.0336<6.3
3,010889NR NR NR NR NR04/22/08 0.910
I 4.49 0.730
I 3.49 <0.12 <0.41 <0.39 <0.47 <0.24 <0.15 <0.34 <0.30 <0.26 0.630
I <0.27 <0.0027 41.0 <100 <100 <10012/23/08 FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP FP03/17/10 <0.140 1.20 0.587
J 3.30 <0.250 0.506
J 0.214
J <0.140 <0.150 <0.200 <0.200 0.320
J <0.240 1.72 0.554
J <0.00968 7.50 <100 76.7 <27006/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0095 <5.0 <35 <35 <3510/16/13 0.25
J 0.97 0.35
J 1.6 <0.10 0.30
J <0.10 <0.10 <0.10 <0.10 <0.10 0.11
J <0.10 0.46
J 0.14
J NR <5.0 <35 <35 <3506/17/15 0.31
J 3.1 0.86 4.5 <0.16
0.36
J <0.14
<0.14
<0.12
<0.16
<0.12
0.18
J <0.12
0.74 0.30
J NR NR NR NR NR10/03/18 1.610.2
2.2
10.9
<0.13
3.4
<0.13
<0.13
<0.13
<0.13
<0.13
0.46
J <0.13
2.8
0.70
NR NR NR NR NR
04/22/08 481 373 84.0 272 <1.2 <4.1 <3.9 <4.7 8.40
I 2.70
I 3.40
I 15.5 <2.6 39.7 13.4 <0.0027 19.9 1,860 119 22412/23/08 1.8J 1.5
J 1.1
J 2.8
J <0.50 1.9
JB <0.85 <0.70 1.1
J <1.0 <1.0 1.4
J <0.55 1.3
J 0.57
J <0.02083 15.0 <100 121 <20403/17/10 4.15 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 0.240
J 0.989
J 0.797
J <0.200 1.05 <0.240 0.180
J <0.180 <0.00986 22.3 <100 <160.0 <27006/26/12 <0.13 1.2 0.61 2.47 <0.13 0.82 <0.10 <0.10 0.11
J <0.11 <0.10 0.27
J <0.10 1.3 0.29
J <0.0095 <5.0 <35 <35 <3510/16/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 0.16
J <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR 5.0 <35 <35 <3506/17/15 33.2 0.94 15.1 42.3 0.28
J 3.5 <0.14
<0.14
0.59 0.28
J <0.12
1.5 <0.12
7.7 1.1 NR NR NR NR NR04/02/18 <0.13
<0.13
<0.13
0.81
J <0.13
0.98
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
1.6
0.40
J NR NR NR NR NR04/22/08 98.1 0.950
I 2.94 3.01 0.390
I 1.26 <0.39 <0.47 1.09 1.19
I <0.34 0.940
I <0.26 1.14 <0.27 <0.0027 36.0 214 <100 <10012/23/08 <0.60 <0.70 <0.50 <1.0 <0.50 0.76
JB <0.85 <0.70 <0.55 <1.0 <1.0 <0.75 <0.55 <0.70 <0.50 <0.02053 15.9 <100 <205 <20503/17/10 11.1 <0.190 <0.150 0.612
J 0.445
J <0.500 <0.180 <0.140 0.354
J 0.582
J <0.200 <0.220 <0.240 <0.150 <0.180 <0.00980 80.5 <100 82.8 <27006/26/12 0.92 2.0 <0.15 0.57
J <0.13 0.16
J <0.10 <0.10 0.33
J 0.14
J <0.10 <0.11 <0.10 0.11
J <0.10 <0.0095 82.1 <35 <35 <3510/16/13 1.3 <0.10 0.96 0.32
J <0.10 0.56 <0.10 <0.10 0.27
J <0.10 <0.10 0.29
J <0.10 0.11
J <0.10 NR 62.3 <35 <35 <3506/17/15 1.1 2.4 0.16
J <0.43
<0.16
<0.12
<0.14
<0.14
<0.12
0.24
J <0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR04/02/18 <0.13
0.63
0.26
J 1.2
J <0.13
0.67
<0.13
<0.13
0.14
J <0.13
<0.13
<0.13
<0.13
0.56
0.14
J NR NR NR NR NR04/22/08 <0.31 <0.28 <0.31 <1.2 <0.12 <0.41 <0.39 <0.47 <0.24 <0.15 <0.34 <0.30 <0.26 <0.26 <0.27 <0.0027 25.5 <100 <100 <10012/23/08 <0.60 <0.70 <0.50 <1.0 <0.50 <0.60 <0.85 <0.70 <0.55 <1.0 <1.0 <0.75 <0.55 <0.70 <0.50 <0.02071 10.4 <100 <208 <20803/17/10 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.150 <0.200 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00980 21.6 <100 83.8 <27006/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0094 26.9 <35 <35 <3510/16/13 <0.10 0.23
J <0.10 0.37
J <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 0.12
J <0.10 NR 17.3 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR
MW-7
MW-5
MWD-6
MW-8
MW-9
Page2of5
Date:09/08/2020
EPA
Method
504.1
EPA
Method
6010B
WellIDDateCollected(mm/dd/yy)1 600 600 500 20 6 70 70 70 70 25 70 70 400 400 0.02 15 400 700 2005,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 25,000 70,000 11,700 30,000 70,000 28,500 25,000 50 15,000 NE NE NEIsopropylbenzeneIPEp-IsopropyltolueneContaminantofConcernBenzeneTABLE6SUMMARYOFGROUNDWATERSAMPLEANALYTICALRESULTSGURGANUSMOBIL(INCIDENTNO.13374)
FacilityID#:0-006307
AnalyticalMethodEPAMethod6200B MADEPMethodVPH
XylenesMTBEC5-C8AliphaticsC9-C12AliphaticsC9-C10Aromatics2LStandard(mg/l)GCL(mg/l)n-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneEDBLeadNaphthalenen-Butylbenzenesec-ButylbenzeneTolueneEthylbenzene04/22/08 <0.31 <0.28 <0.31 <1.2 <0.12 <0.41 <0.39 <0.47 <0.24 <0.15 <0.34 <0.30 <0.26 <0.26 <0.27 <0.0027 8.93 <100 <100 <10012/23/08 <0.60 <0.70 <0.50 <1.0 <0.50 <0.60 <0.85 <0.70 <0.55 <1.0 <1.0 <0.75 <0.55 <0.70 <0.50 <0.02065 1.9
J <100 <195.2 <195.203/17/10 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.150 <0.200 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00995 9.90 <100 63.5 <27006/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 0.14
J <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0098 41.8 <35 <35 <3510/16/13 0.11
J 1.1 0.89 4.6 <0.10 2.6 <0.10 <0.10 <0.10 <0.10 <0.10 0.42
J <0.10 3.2 0.73 NR <5.0 <35 35.4
J <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
0.46
J <0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR04/02/18 <0.13
<0.13
<0.13
<0.25
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
NR NR NR NR NR04/22/08 <0.31 <0.28 <0.31 <1.2 <0.12 <0.41 <0.39 <0.47 <0.24 <0.15 <0.34 <0.30 <0.26 <0.26 <0.27 <0.0027 2.98 <100 <100 <10012/23/08 1,700 1,700 290 1,200 200 40B <3.4 <2.8 10
J 47
J <4.0 26 <2.2 170 42 <0.02065 16.9 5,660 <1,102 48203/17/10 30.7 13.4 5.36 17.7 4.33 0.549
J <0.180 <0.140 0.196
J 0.671
J <0.200 0.336
J <0.240 2.25 0.567
J <0.00960 37.2 <100 <160.0 <27006/26/12 27.6 27.8 5.8 13.6 0.44
J 0.23
J <0.10 <0.10 0.19
J 0.19
J <0.10 0.48
J <0.10 0.71 0.21
J <0.0094 29.8 289 <35 <3510/16/13 61.8 26.9 12.1 45.2 0.72 0.56 <0.10 <0.10 0.28
J 0.58 <0.10 0.84 <0.10 2.3 0.59 NR 16.3 387 <35 <3506/17/15 0.37
J <0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR04/02/18 1247.7
46.5
148
3.7
11.10.15
J 0.16
J 1.6
1.2
<0.13
4.1
<0.13
22.7
5.3
NR NR NR NR NR
10/03/18 19516.9
77.1
256
2.5
12.4<0.63
<0.63
2.1
J 1.7
J <0.63
5.2
<0.63
29.8
6.3
NR NR NR NR NR
04/22/08 <0.31 <0.28 <0.31 <1.2 0.260
I <0.41 <0.39 <0.47 <0.24 0.290
I <0.34 <0.30 <0.26 <0.26 <0.27 <0.0027 32.8 <100 <100 <10012/23/08 12 4.0
J 2.4
J 8.1
J 2.5
J 2.5JB <0.85 <0.70 <0.55 5.7
J <1.0 <0.75 <0.55 1.6
J 0.71
J <0.02102 5.2 <100 <203 <20303/17/10 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.150 0.577
J <0.200 <0.220 <0.240 <0.150 <0.180 <0.00949 42.6 <100 <160.0 <27006/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0095 32.9 <35 <35 <3510/16/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR 10.9 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR04/02/18 6.2<0.13
1.1
1.9
<0.13
0.45
J <0.13
<0.13
<0.13
0.23
J <0.13
<0.13
<0.13
0.34
J <0.13
NR NR NR NR NR04/22/08 2.40 <0.28 <0.31 <1.2 1.01 <0.41 <0.39 <0.47 <0.24 0.600
I <0.34 <0.30 <0.26 0.360
I <0.27 <0.0027 <2.2 <100 <100 <10012/23/08 160 1.4
J 32 38 34 10B <0.85 <0.70 2.4
J 50 <1.0 2.8
J <0.55 9.3 2.5
J <0.02059 6.9 700 101 <20303/17/10 327 100 64.9 185 5.46 7.50 <0.450 0.708
J 1.79
J 19.6 <0.500 3.40 <0.600 28.8 5.23 0.0499 30.4 274 123 <27006/26/12 2,310 222 457 1,258 15.8 34.7 0.54 0.66 14.0 82.8 1.7 27.9 <0.10 138 26.6 <0.0093 88.7 2,090 1,990 95710/16/13 1,500 23.6 278 527 5.8 47.3 0.83 0.85 9.6 46.7 0.57 26.4 <0.10 63.7 11.2 NR 79.5 277 45.0
J 10006/17/15 799 16.8 149 255 4.6
J 34.2 <3.6
<3.5
5.6
J 35.4 <3.1
12.6
J <3.0
54.1 6.7
J NR NR NR NR NR04/02/18 1906.3
66.8
103
1.1
21.80.40
J 0.47
J 5.3
9.6
0.30
J 10.4
<0.13
41.4
7.3
NR NR NR NR NR10/03/18 1,99026.5
6681,6809.7
J 115<6.3
<6.3
23.2
J 40.6
<6.3
60.3
<6.3
328
68.1
NR NR NR NR NR
04/22/08 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS12/23/08 1.3J <0.70 <0.50 <1.0 5.1 0.80
JB <0.85 <0.70 <0.55 6.8
J <1.0 <0.75 <0.55 <0.70 <0.50 <0.02090 5.9 <100 <208 <20803/17/10 <0.140 <0.190 0.374
J <0.220 12.9 <0.500 <0.180 <0.140 <0.150 17.3 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00948 21.4 <100 <160.0 <27006/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0096 21.2 <35 <35 <3510/16/13 <0.10 <0.10 <0.10 <0.22 1.4 <0.15 <0.10 <0.10 <0.10 1.9 <0.10 <0.10 <0.10 <0.10 <0.10 NR 9.2 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR04/02/18 <0.13
<0.13
<0.13
<0.25
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
NR NR NR NR NRMW-15 04/22/08 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS
MW-10
MW-11
MW-12
MW-13
MW-14
Page3of5
Date:09/08/2020
EPA
Method
504.1
EPA
Method
6010B
WellIDDateCollected(mm/dd/yy)1 600 600 500 20 6 70 70 70 70 25 70 70 400 400 0.02 15 400 700 2005,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 25,000 70,000 11,700 30,000 70,000 28,500 25,000 50 15,000 NE NE NEIsopropylbenzeneIPEp-IsopropyltolueneContaminantofConcernBenzeneTABLE6SUMMARYOFGROUNDWATERSAMPLEANALYTICALRESULTSGURGANUSMOBIL(INCIDENTNO.13374)
FacilityID#:0-006307
AnalyticalMethodEPAMethod6200B MADEPMethodVPH
XylenesMTBEC5-C8AliphaticsC9-C12AliphaticsC9-C10Aromatics2LStandard(mg/l)GCL(mg/l)n-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneEDBLeadNaphthalenen-Butylbenzenesec-ButylbenzeneTolueneEthylbenzene12/23/08 730 7.1
J 48 400 32 30B <1.7 <1.4 8.0
J 110 <2.0 5.4
J <1.1 110 32 <0.02083 6.1 3,100 637 26703/17/10 632 151 144 438 27.8 14.3 1.25
J 1.36
J 4.66
J 50.7 <1.00 9.56 <1.20 63.7 11.1 0.0498 64.2 566 145 16706/26/12 161 1.0 43.4 38.4 8.3 9.6 0.19
J 0.32
J 2.9 14.3 0.13
J 5.2 <0.10 19.4 1.0 <0.0094 44.4 265 184 17610/16/13 4.0 0.30
J 1.8 0.66
J 0.19
J 0.55 <0.10 <0.10 0.12
J 0.28
J <0.10 0.30
J <0.10 0.32
J <0.10 NR 10.8 <35 <35 <3506/17/15 250 4.3 82.7 115 1.5 21.3 0.44
J 0.46
J 4.7 8.0 0.32
J 11.6 <0.12
38.9 3.6 NR NR NR NR NR04/02/18 0.34
J <0.13
0.34
J <0.25
0.14
J 0.78
<0.13
<0.13
0.13
J 0.19
J 6.4
<0.13
<0.13
0.29
J <0.13
NR NR NR NR NR04/22/08 4.37 0.370
I 0.940
I 3.82 6.48 1.52 <0.39 <0.47 <0.24 9.19 <0.34 <0.30 <0.26 1.23 <0.27 <0.0027 <2.2 <100 <100 <10012/23/08 2.9 <0.70 <0.50 2.0
J <0.50 1.5
JB <0.85 <0.70 <0.55 3.4
J <1.0 <0.75 <0.55 0.91
J <0.50 <0.02035 8.0 <100 <205 <20503/17/10 <0.140 <0.190 <0.150 <0.220 2.17 <0.500 <0.180 <0.140 <0.150 3.12 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00945 17.2 <100 <160.0 <27006/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0095 12.6 <35 <35 <3510/16/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR 5.3 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR04/22/08 8.13 0.390
I 0.510
I 3.29 47.0 2.81 <0.39 <0.47 0.370
I 3.14
I <0.34 <0.30 <0.26 0.660
I <0.27 <0.0027 <2.2 <100 <100 <10012/23/08 28 1.4
J 1.2
J 21 33 2.4
JB <0.85 <0.70 <0.55 4.1
J <1.0 <0.75 <0.55 3.8
J 0.89
J <0.02053 2.5
J 167 <210 <21003/17/10 215 5.72 13.5 213 72.7 15.7 0.614
J 0.792
J 2.53 12.3 <0.400 3.67 <0.480 32.7 5.52 <0.00943 15.5 197 177.4 <27906/26/12 <0.13 <0.13 <0.15 <0.30 2.7 0.55 <0.10 <0.10 <0.10 0.68 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0096 105 <35 <35 <3510/16/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR 36.8 <35 <35 <3506/17/15 7.5 <0.17
0.39
J 1.2
J 1.0 0.42
J <0.14
<0.14
<0.12
0.86 <0.12
<0.16
<0.12
0.50 <0.14
NR NR NR NR NR04/02/18 30214.1
24.0
7747.2
30.0<1.3
<1.3
5.8
9.5
<1.3
7.7
<1.3
111
25.6
NR NR NR NR NR
10/03/18 44915.6
57.8
9424.9
J 31.1<1.3
<1.3
6.3
8.5
<1.3
10.8
<1.3
109
24.4
NR NR NR NR NR
03/17/10 31.3 0.351
J 4.28 13.8 64.5 3.86 <0.180 0.303
J 0.844
J 7.12 <0.200 0.389
J <0.240 7.15 0.495
J <0.0103 143 <100 <170.6 <30006/26/12 <0.13 <0.13 <0.15 <0.30 2.2 1.1 <0.10 0.39
J 0.55 2.0 <0.10 0.16
J <0.10 <0.10 <0.10 <0.0097 158 <35 <35 38.6
J10/16/13 <0.10 <0.10 <0.10 <0.22 1.4 0.18
J <0.10 0.13
J 0.11
J 1.8 <0.10 <0.10 <0.10 <0.10 <0.10 NR 24.0 <35 <35 <3506/17/15 <0.17
<0.17
0.17
J <0.43
0.84 0.34
J <0.14
0.28
J 0.31
J 1.5 <0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR03/17/10 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.150 <0.200 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00960 58.4 <100 <160.0 <27006/26/12 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS10/16/13 <0.10 0.19
J <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR 19.8 <35 <35 <3506/17/15 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS03/17/10 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.150 <0.200 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00991 111 <100 <166.7 <28906/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 0.16
J <0.11 <0.10 <0.10 <0.10 <0.0094 8.6 <35 <35 <3510/16/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR 15.0 <35 <35 <3506/17/15 <0.17
0.62 <0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR04/02/18 <0.13
<0.13
<0.13
<0.25
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
NR NR NR NR NR03/17/10 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.150 <0.200 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00951 137 <100 <170.6 <30006/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0095 60.9 <35 <35 <3510/16/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR 15.3 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR04/02/18 <0.13
<0.13
<0.13
<0.25
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
<0.13
NR NR NR NR NR03/17/10 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.150 <0.200 <0.200 <0.220 <0.240 <0.150 <0.180 <0.0102 167 <100 <170.6 <30006/26/12 168 6.7 13.0 43.3 0.51 1.1 <0.10 <0.10 0.80 0.33
J <0.10 1.3 <0.10 6.2 0.74 <0.0094 168 <35 <35 <3510/16/13 6.5 1.1 11.8 17.0 <0.10 0.71 <0.10 0.16
J 1.1 <0.10 <0.10 3.4 <0.10 3.1 0.16
J NR 32.5 78.9
J 41.0
J <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
0.35
J <0.16
<0.12
<0.16
<0.12
0.23
J <0.14
NR NR NR NR NR
MW-19
MW-15R
MW-16
MW-17
MW-18
MW-20
MW-21
MW-22
Page4of5
Date:09/08/2020
EPA
Method
504.1
EPA
Method
6010B
WellIDDateCollected(mm/dd/yy)1 600 600 500 20 6 70 70 70 70 25 70 70 400 400 0.02 15 400 700 2005,000 260,000 84,500 85,500 20,000 6,000 6,900 8,500 25,000 70,000 11,700 30,000 70,000 28,500 25,000 50 15,000 NE NE NEIsopropylbenzeneIPEp-IsopropyltolueneContaminantofConcernBenzeneTABLE6SUMMARYOFGROUNDWATERSAMPLEANALYTICALRESULTSGURGANUSMOBIL(INCIDENTNO.13374)
FacilityID#:0-006307
AnalyticalMethodEPAMethod6200B MADEPMethodVPH
XylenesMTBEC5-C8AliphaticsC9-C12AliphaticsC9-C10Aromatics2LStandard(mg/l)GCL(mg/l)n-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneEDBLeadNaphthalenen-Butylbenzenesec-ButylbenzeneTolueneEthylbenzene06/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0095 114 <35 <35 <3510/16/13 <0.10 0.14
J <0.10 <0.22 <0.10 0.82 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 0.22
J <0.10 NR 19.7 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR06/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0096 15.3 <35 <35 <3510/16/13 <0.10 <0.10 <0.10 <0.22 <0.10 0.19
J <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 NR 7.4 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
0.70 <0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR10/16/13 <0.10 <0.10 <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.0097 12.4 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NR06/17/15 <0.17
<0.17
0.40
J <0.43
0.40
J <0.12
<0.14
<0.14
<0.12
0.83 <0.12
<0.16
<0.12
<0.14
<0.14
<0.0096
NR <35
<35 <3504/02/18 <0.13
<0.13
<0.13
<0.25
0.35
J <0.13
<0.13
<0.13
<0.13
0.75
<0.13
<0.13
<0.13
<0.13
<0.13
NR NR NR NR NR06/17/15 267 19.1 38.4 279 11.0 9.6 <1.4
<1.4
2.0
J 7.6 <1.2
5.1 <1.2
32.7 7.4 <0.0097
NR 40.7
J <35 <3504/02/18 12.00.30
J 0.89
23.1
0.16
J 1.9
<0.13
<0.13
0.33
J 0.51
<0.13
0.27
J <0.13
2.9
0.67
NR NR NR NR NR
10/03/18 47.82.2
7.9
79.4
0.48
J 6.0
<0.13
<0.13
0.87
1.4
<0.13
1.2
<0.13
8.0
1.6
NR NR NR NR NR03/17/10 17.7 110 36.0 195 1.24 21.8 7.34 1.79 2.93 <0.200 0.692
J <0.220 <0.240 93.6 25.0 <0.0101 7.99 176 <163.2 17806/26/12 <0.13 <0.13 <0.15 <0.30 <0.13 <0.10 <0.10 <0.10 <0.10 <0.11 <0.10 <0.11 <0.10 <0.10 <0.10 <0.0094 <5.0 <35 <35 <3510/16/13 <0.10 0.27
J 0.15
J 0.59
J <0.10 0.19
J <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 0.24
J <0.10 NR <5.0 <35 <35 <3506/17/15 <0.17
<0.17
<0.15
<0.43
<0.16
<0.12
<0.14
<0.14
<0.12
<0.16
<0.12
<0.16
<0.12
<0.14
<0.14
NR NR NR NR NRTMW-1 10/16/13 <0.10 0.11
J <0.10 <0.22 <0.10 <0.15 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.10 <0.0099 69.3 <35 <35 <35MW(QO)-1 03/17/10 55.8 1.13 <0.150 5.93 5.87 1.72 <0.180 <0.140 0.315
J 1.65 <0.200 0.279
J <0.240 2.38 0.437
J <0.00978 9.02 <100 <160.0 <270MW(QO)-5 03/17/10 2.13 <0.190 <0.150 <0.220 0.652
J <0.500 <0.180 <0.140 <0.150 <0.200 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00977 15.0 <100 <160.0 <270MW(QO)-8 03/17/10 <0.140 <0.190 <0.150 <0.220 <0.250 <0.500 <0.180 <0.140 <0.150 <0.200 <0.200 <0.220 <0.240 <0.150 <0.180 <0.00968 8.66 <100 <160.0 <270Notes:•

Results
reported
in
µg/l
(micrograms
per
liter).•

2L
Standard:
as
specified
in
T15A
NCAC
2L.02•

GCL:

Gross
contamination
level.•

<:

Less
than
the
method
detection
limit
specified
in
the
laboratory
report.•

NE:
Standard
not
established.•

NS:

Not
sampled.•

Concentrations
in
bold
face
type
exceeded
the
2L
Standard;
concentrations
in
italics
exceeded
the
GCL.•

I
or
J:
Estimated
value.•

V:
Present
in
laboratory
blank.•

For
other
compounds
reported
which
did
not
exceed
the
2L
Standards,
refer
to
the
laboratory
reports.
MW-26
MW-27
TW-1
MW-23
MW-24
MW-25
Page5of5








APPENDICES 








APPENDIXA
State
Correspondence



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APPENDIXB
Laboratory
Report
–
Ground
Water
Samples




Table of Contents
-1-
Sections:
Section 1: Sample Summary ................................................................................................... 3
Section 2: Summary of Hits .................................................................................................... 4
Section 3: Sample Results ........................................................................................................ 6
3.1: FA77973-1: MW-1R ..................................................................................................... 7
3.2: FA77973-2: MW-2R ..................................................................................................... 9
3.3: FA77973-3: MW-3R ..................................................................................................... 11
3.4: FA77973-4: MW-4R ..................................................................................................... 13
Section 4: Misc. Forms ............................................................................................................ 15
4.1: Chain of Custody ........................................................................................................... 16
Section 5: MS Volatiles - QC Data Summaries ..................................................................... 18
5.1: Method Blank Summary ................................................................................................ 19
5.2: Blank Spike Summary ................................................................................................... 23
5.3: Matrix Spike/Matrix Spike Duplicate Summary ........................................................... 27 123452 of 30
FA77973
FA77973: Chain of Custody
Page 1 of 2
16 of 30
FA7797344.1
Job Number:FA77973 Client:GEOLOGICAL RESOURCES
Date / Time Received:8/19/2020 10:00:00 AM Delivery Method:FX
Project:GURGUS MOBIL
Airbill #'s:
Cooler Information
1. Custody Seals Present
2. Custody Seals Intact
4. Cooler temp verification
3. Temp criteria achieved
5. Cooler media
IR Gun
Ice (Bag)
Trip Blank Information
1. Trip Blank present / cooler
2. Trip Blank listed on COC
2. Samples preserved properly
Sample Information
1. Sample labels present on bottles
5. Sample recvd within HT
4. Condition of sample
3. Sufficient volume/containers recvd for analysis:
Intact
Comments
SM001Rev. Date 05/24/17
SGS Sample Receipt Summary
Cooler Temps (Raw Measured) °C:
Cooler Temps (Corrected) °C:
Cooler 1: (2.4);
Cooler 1: (2.2);
3. Type Of TB Received
W or S N/A
6. Dates/Times/IDs on COC match Sample Label
7. VOCs have headspace
8. Bottles received for unspecified tests
9. Compositing instructions clear
10. Voa Soil Kits/Jars received past 48hrs?
11. % Solids Jar received?
Misc. Information
25-Gram 5-GramNumber of Encores:Number of 5035 Field Kits:Number of Lab Filtered Metals:
Test Strip Lot #s:pH 0-3 230315 pH 10-12 219813A Other: (Specify)
Y or N N/A
Y or N
Therm ID:IR 1; Therm CF:-0.2; # of Coolers:1
Y or N N/A
12. Residual Chlorine Present?
Residual Chlorine Test Strip Lot #:
Technician: Reviewer:PETERH Date:Date: 8/19/2020 10:00:00 A
FA77973: Chain of Custody
Page 2 of 2
17 of 30
FA7797344.1








APPENDIXC

Contaminant
Mass
Calculations





AreaID WellID Area
(ft²)
AverageWell
Depth
(ft.)
Average
Depthto
Water
(ft.)
WaterColumn
Height
(ft)
Volume
(ft³)
Volume
(L)
Effective
Porosity
Effective
Volume
(L)
MW-1R
MW-2R
MW-3R
MW-4R
Area Date Well
Benzene
(μ/L)
Toluene
(μ/L)
Ethylbenzene
(μ/L)
Xylenes
(μ/L)
MTBE
(μ/L)
Naphthalene
(μ/L)
Total
(μ/L)
DTW
(ft.)
AverageWater
ColumnHeight
(ft.)
TotalAverageMass
(g)PercentRed. ToDateRed.
MW-1R 1,860 1,520 517 7,730 13 14911640.00 6.20
MW-2R 212 6,050 1,800 9,790 25.00 403 18280.00 5.64
MW-3R 9,600 25,400 2,710 14,300 279.00 453.00 52742.00 5.65
MW-4R 6,310 271 5,190 19,200 64.00 1,450 32485.00 7.58
Avg. 4495.50 8310.25 2554.25 12755.00 95.25 768.67 28786.75 6.27
MW-1R 901 112 926 1540 13 135 3627.00 5.27
MW-2R 4.9 1.9 2.9 1.8 0.9 3.7 16.10 4.59
MW-3R 5440 29300 2820 13600 176 934 52270.00 5.29
MW-4R 419 7.40 693 580 2.50 343 2044.90 5.36
Avg. 1691.23 7355.33 1110.48 3930.45 48.10 353.93 14489.50 5.13
Date
AverageWater
ColumnHeight
(ft.)
01/27/20 2.73
08/17/20 3.87
Notes:
•FP:FreeProduct
•AreaofthecontaminantplumeiscalculatedfromFigure6
•Heightofthewatercolumniscalculatedbysubtractingtheaveragedepthtowaterfromtheaveragewelldepthofthereferencedmonitoringwells
•Volumeofthecontaminantplumeiscalculatedbymultiplyingtheareaoftheplumebytheaverageheightofthewatercolumnduringeachsamplingevent
•Effectiveporosityisassumedbasedonthesub-surfacesoilprofileobtainedfromwellconstructionrecordsandsoilboringlogs
•Totalmasswascalculatedbymultiplyingthetotalcontaminantconcentrationsforthesamplingeventwitheffectivevolume
•ContaminantmasscannotbecalculatedinwellscontainingFP;therefore,thetotalcontaminantmassisbasedontheknownconcentrationsintheareaforeachsamplingevent.
•Whenareascouldn’tbesampled,thelastknownconcentrationswereusedinthecalculations.
Area1
08/17/20
2.73 1,558.95 ------
29%29%1,112.053.87
9,5622.736.2793,499.5
01/27/20
1112 28.7%29%
TotalContaminantMass
(g)
PercentReductionCompared
toPreviousEvent PercentReductionToDate
1,559 ------
1 54,155270,776
APPENDIXC
PERCENTAGEREDUCTIONS
GURGANUSMOBIL(INCIDENTNO.13374)
BaselineEvent
0.20