Document ID: EPA-HQ-SFUND-2002-0002-0081
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2002-09-03T04:00Z

Protecting
Texas
by
Reducing
and
Preventing
Pollution
Hazard
Ranking
System
Documentation
Record
Patrick
Bayou
Site
Deer
Park,
Harris
County,
Texas
TX0000605329
REGION
VI
Prepared
in
cooperation
with
the
U.
S.
Environmental
Protection
Agency
February
2001
Hazard
Ranking
System
Documentation
Record
Patrick
Bayou
Site
Deer
Park,
Harris
County,
Texas
TX0000605329
Prepared
in
cooperation
with
the
U.
S.
Environmental
Protection
Agency
Region
VI
Prepared
by
Protecting
Texas
by
Reducing
and
Preventing
Pollution
Texas
Natural
Resource
Conservation
Commission
Site
Assessment
and
Management
Section
Superfund
Site
Discovery
and
Assessment
Program
Austin,
Texas
February
2001
The
preparation
of
this
report
was
financed
through
grants
from
the
U.
S.
Environmental
Protection
Agency.
i
TABLE
OF
CONTENTS
Page
Reference
Listing
..............................................................
10
HRS
Documentation
Record
Review
Cover
Sheet
......................................
1
Notes
to
the
Reader
.............................................................
2
HRS
Documentation
Record
......................................................
3
Worksheet
for
Computing
HRS
Site
Score
............................................
6
Surface
Water
Overland/
Flood
Migration
Component
Scoresheet
...........................
7
2.2
SOURCE
CHARACTERIZATION
..........................................
13
2.2.1
Source
Identification
................................................
13
2.2.2
Hazardous
Substances
Associated
with
a
Source
..........................
17
2.2.3
Hazardous
Substances
Available
to
a
Pathway
............................
20
2.3
LIKELIHOOD
OF
RELEASE
..............................................
21
2.4
WASTE
CHARACTERIZATION
...........................................
21
2.4.1
Selection
of
Substance
Potentially
Posing
Greatest
Hazard
....................
21
2.4.2
Hazardous
Waste
Quantity
...........................................
21
2.4.2.1
Source
Hazardous
Waste
Quantity
..............................
21
2.4.2.1.1
Hazardous
Constituent
Quantity
(Tier
A)
............
21
2.4.2.1.2
Hazardous
Waste
Stream
Quantity
(Tier
B)
..........
21
2.4.2.1.3
Volume
(Tier
C)
..............................
21
2.4.2.1.4
Area
(Tier
D)
................................
21
2.4.2.1.5
Hazardous
Waste
Quantity
Value
.................
22
Sources
Not
Evaluated
..................................
24
3.0
GROUND
WATER
MIGRATION
PATHWAY
................................
25
3.0.1
General
Considerations
..............................................
25
4.0
SURFACE
WATER
MIGRATION
PATHWAY
................................
26
4.1
OVERLAND/
FLOOD
MIGRATION
COMPONENT
...........................
26
4.1.1
General
Considerations
..............................................
26
4.1.1.1
Definition
of
Hazardous
Substance
Migration
Path
for
Overland/
Flood
Migration
Component
...............................................
28
Overland
Segment,
Probable
Point
of
Entries
(PPEs),
Number
of
Watersheds
.....
28
4.1.1.2
Target
Distance
Limit
........................................
28
4.1.1.3
Evaluation
of
Overland/
Flood
Migration
Component
................
29
4.1.2
Drinking
Water
Threat
..............................................
30
4.1.2.1
Drinking
Water
Threat
­
Likelihood
of
Release
.....................
30
4.1.2.1.1
Observed
Release
........................................
30
Chemical
Analysis
......................................
30
Background
Concentrations
..............................
30
ii
Contaminated
Samples
..................................
35
Hazardous
Substances
Released
...........................
81
Attribution
...........................................
81
Attribution
to
Potential
Sources
........................................
82
4.1.3
Human
Food
Chain
Threat
...........................................
83
4.1.3.1
Human
Food
Chain
Threat
­
Likelihood
of
Release
.................
83
4.1.3.2
Human
Food
Chain
Threat
­
Waste
Characteristics
.................
83
4.1.3.2.1
Toxicity/
Persistence/
Bioaccumulation
...............
83
4.1.3.2.2
Hazardous
Waste
Quantity
......................
85
4.1.3.2.3
Waste
Characteristics
Factor
Category
Value
........
86
4.1.3.3
Human
Food
Chain
Threat
­
Targets
............................
87
4.1.3.3.1
Food
Chain
Individual
..........................
87
4.1.3.3.2
Population
..................................
88
4.1.3.3.3
Calculation
of
HFC
Threat
­
Targets
Factor
Category
Value
...............................................
88
4.1.3.4
Calculation
of
Human
Food
Chain
Threat
Score
....................
88
4.1.4
Environmental
Threat
...............................................
89
4.1.4.1
Environmental
Threat
­
Likelihood
of
Release
......................
89
4.1.4.2
Environmental
Threat
­
Waste
Characteristics
......................
89
4.1.4.2.1
Ecosystem
Toxicity/
Persistence/
Bioaccumulation
......
89
4.1.4.2.2
Hazardous
Waste
Quantity
......................
91
4.1.4.2.3
Waste
Characteristics
Factor
Category
Value
........
92
4.1.4.3
Environmental
Threat
­
Targets
................................
93
4.1.4.3.1
Sensitive
Environments
.........................
93
4.1.4.3.1.1
Level
I
Concentrations
............
93
4.1.4.3.1.2
Level
II
Concentrations
...........
94
Wetlands
Frontage
.....................................
95
4.1.4.3.1.3
Potential
Contamination
...........
96
4.1.4.3.1.4
Calculation
of
Environmental
Threat
Targets
Factor
Category
Value
................
97
4.1.4.4
Calculation
of
Environmental
Threat
Score
for
a
Watershed
...........
97
4.1.5
Calculation
of
Overland/
Flood
Migration
Score
for
a
Watershed
...............
98
4.1.6
Calculation
of
Overland/
Flood
Migration
Component
Score
..................
98
4.2
GROUND
WATER
TO
SURFACE
WATER
MIGRATION
COMP0NENT
..........
99
4.3
CALCULATION
OF
SURFACE
WATER
MIGRATION
PATHWAY
SCORE
........
99
5.0
SOIL
EXPOSURE
PATHWAY
............................................
100
5.0.1
General
Considerations
.............................................
100
6.0
AIR
MIGRATION
PATHWAY
............................................
101
6.1.1
Observed
Release
................................................
101
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
iii
TABLE
OF
CONTENTS
(continued)

TABLES
Page
1
Source
Description
­
Contaminated
Sediment
Samples
............................
17
2
Source
No.
1
­
Other
(Contaminated
Sediments)
Hazardous
Waste
Quantity
............
22
3
Site
Summary
of
Source
Descriptions
..........................................
23
4
Background
Samples
Collected
..............................................
31
5
Summary
of
Highest
Inorganic
and
Organic
Background
Concentrations
................
32
6
Contaminated
Sediment
Samples
.............................................
35
7
Data
Usability
for
Sediment
Samples
..........................................
76
8
Hazardous
Substance
Toxicity,
Persistence
and
Bioaccumulation
Potential
..............
83
9
Hazardous
Waste
Quantity
­
Food
Chain
.......................................
85
10
Hazardous
Substance
Ecosystem
Toxicity,
Persistence
and
Bioaccumulation
.............
89
11
Hazardous
Waste
Quantity
­
Environmental
.....................................
91
12
Environmental
Threat
­
Targets
­
Level
II
Concentrations
...........................
94
FIGURES
Figure
1a
Regional
Location
Map
...............................................
4
Figure
1b
Site
Location
and
Surrounding
Land
Use
Map
.............................
5
Figure
2
Site
Features
Map
.................................................
14
Figure
3
Sediment
Sample
Locations
..........................................
15
Figure
4
Surface
Water
Pathway
.............................................
27
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
iv
HRS
DOCUMENTATION
RECORD
REVIEW
COVER
SHEET
SITE
NAME:
PATRICK
BAYOU
SITE
CONTACT
PERSON:

Brenda
Cook,
USEPA
Region
6
NPL
Coordinator
214/
665­
7436
Pathway,
Components,
or
Threats
Not
Evaluated
Ground
Water
Migration
Pathway
The
Ground
Water
Pathway
was
not
evaluated
due
to
the
lack
of
targets
and
because
the
inclusion
of
this
pathway
would
not
significantly
affect
the
site
score.

Surface
Water
Pathway
The
drinking
water
threat
was
not
evaluated
due
to
lack
of
targets
and
because
the
inclusion
of
this
threat
would
not
significantly
effect
the
site
score.

Soil
Exposure
Pathway
The
Resident
Population
Threat,
and
Nearby
Population
Threat,
were
not
evaluated
due
to
the
lack
of
targets
and
because
the
inclusion
of
this
pathway
would
not
significantly
affect
the
site
score.

Air
Migration
Pathway
The
Air
Migration
Pathway
was
not
evaluated
due
to
the
lack
of
targets
and
because
the
inclusion
of
this
pathway
would
not
significantly
affect
the
site
score.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
v
NOTES
TO
THE
READER
The
following
rules
were
used
when
citing
references
in
the
HRS
Documentation
Record:

1.
All
references
attached
to
this
report
have
been
stamped
with
a
designated
page
number
(example:
Ref.
1,
p.
10
=
001
00010).
However,
if
the
reference
being
cited
has
an
original
page
number,
that
page
number
was
cited.
If
the
reference
being
cited
has
no
original
page
number
or
the
pagination
is
not
complete,
then
the
designated
page
number
is
cited.

2.
The
State
predecessor
agencies:
Texas
Water
Quality
Board
(TWQB),
Texas
Department
of
Water
Resources
(TDWR),
Texas
Water
Commission
(TWC),
and
Texas
Air
Control
Board
(TACB),
referred
to
throughout
this
report
are
now
known
as
the
Texas
Natural
Resource
Conservation
Commission
(TNRCC).
The
new
agency,
TNRCC,
became
effective
September
1,
1993,
as
mandated
under
State
Senate
Bill
2
of
the
73rd
Regular
Legislative
Session.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
vi
HRS
DOCUMENTATION
RECORD
Name
of
Site:
Patrick
Bayou
Site
Date
Prepared:
11/
00
CERCLIS
Site
ID
Number:
TX0000605329
Site
Specific
Identifier:
Other
(Contaminated
Sediments).

Street
Address
of
Site:
None
(see
General
Location
below)

City,
County,
State:
Deer
Park,
Harris
County,
Texas
General
Location
in
the
State:
The
Patrick
Bayou
site
is
located
approximately
1
mile
north
of
Deer
Park,
Texas,
originating
south
of
SH
225
draining
2.85
miles
north
to
the
Houston
Ship
Channel
along
the
southern
Gulf
Coast
of
Texas
(see
Figure
1a,
Regional
Location
Map
and
Figure
1b,
Site
Location
and
Surrounding
Land
Use
Map)

Topographic
Map:
US
Geological
Survey
7.5
Minute
Topographic
Map,
La
Porte
Quadrangle.

Latitude:
29°
43'
55"
North
Longitude:
95°
06'
52.5"
West
(Approximate
center
of
bayou,
see
Reference
6,
Topographic
Map)

EPA
Region
6
Pathway
Scores:
Ground
Water
Migration
Pathway
­
NE
Surface
Water
Migration
Pathway
­
95.67
Soil
Exposure
Pathway
­
NE
Air
Migration
Pathway
­
NE
NE
=
Not
Evaluated
HRS
SITE
SCORE:
47.83
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
vii
Figure
1a
Regional
Location
Map
Patrick
Bayou
Site
A
copy
of
the
site
location
map
is
available
at
the
EPA
Headquarters
Superfund
Docket:

U.
S.
CERCLA
Docket
Office
Crystal
Gateway
#1,
1st
Floor
1235
Jefferson
Davis
Highway
Arlington,
VA
22202
Telephone:
(703)
603­
8917
E­
Mail:
superfund.
docket@
epa.
gov
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
viii
Figure
1b
Site
Location
and
Surrounding
Land
Use
Map
Patrick
Bayou
Site
A
copy
of
the
site
location
map
is
available
at
the
EPA
Headquarters
Superfund
Docket:

U.
S.
CERCLA
Docket
Office
Crystal
Gateway
#1,
1st
Floor
1235
Jefferson
Davis
Highway
Arlington,
VA
22202
Telephone:
(703)
603­
8917
E­
Mail:
superfund.
docket@
epa.
gov
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
ix
WORKSHEET
FOR
COMPUTING
HRS
SITE
SCORE
S
S
2
1.
Ground
Water
Migration
Pathway
Score
(Sgw)
NE
(from
Table
3­
1,
line
13)

2a.
Surface
Water
Overland/
Flood
Migration
95.67
9,152.7
Component
(from
Table
4­
1,
line
30)

2b.
Ground
Water
to
Surface
Water
Migration
NE
Component
(from
Table
4­
25,
line
28)

2c.
Surface
Water
Migration
Pathway
Score
(Ssw)
95.67
9,152.7
Enter
the
larger
of
lines
2a
and
2b
as
the
pathway
score.

3.
Soil
Exposure
Pathway
Score
(Ss)
NE
(from
Table
5­
1,
line
22)

4.
Air
Migration
Pathway
Score
(Sa)
NE
(from
Table
6­
1,
line
12)

5.
Total
of
Sgw
2
+
Ssw
2
+
Ss
2
+
Sa
2
9,152.7
6.
HRS
Site
Score
Divide
the
value
on
line
5
by
4
and
take
the
square
root.
47.83
NE
=
Not
Evaluated
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
x
SURFACE
WATER
OVERLAND/
FLOOD
MIGRATION
COMPONENT
SCORESHEET
Factor
Categories
and
Factors
Maximum
Value
Value
Assigned
DRINKING
WATER
THREAT
Drinking
Water
Threat
Score
1.
Observed
Release
550
NS
2.
Potential
to
Release
by
Overland
Flow:

2a.
Containment
10
NS
2b.
Runoff
25
NS
2c.
Distance
to
Surface
Water
25
NS
2d.
Potential
to
Release
by
Overland
Flow
[Lines
2a
x
(2b
+
2c)]
500
NS
3.
Potential
to
Release
by
Flood:

3a.
Containment
(Flood)
10
NS
3b.
Flood
Frequency
50
NS
3c.
Potential
to
Release
by
Flood
(Lines
3a
x
3b)
500
NS
4.
Potential
to
Release
(Lines
2d
+
3c,
subject
to
a
maximum
of
500)
500
NS
5.
Likelihood
to
Release
(Higher
of
Lines
1
and
4)
550
NS
Waste
Characteristics
6.
Toxicity/
Persistence
*
NS
7.
Hazardous
Waste
Quantity
*
NS
8.
Waste
Characteristics
100
NS
Targets
9.
Nearest
Intake
50
NS
10.
Population:

10a.
Level
I
Concentrations
**
NS
10b.
Level
II
Concentrations
**
NS
10c.
Potential
Contamination
**
NS
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
xi
SURFACE
WATER
OVERLAND/
FLOOD
MIGRATION
COMPONENT
SCORESHEET
10d.
Population
(Lines
10a
+
10b
+
10c)
**
NS
11.
Resources
5
NS
12.
Targets
(Lines
9
+
10d
+
11)
**
NS
NS
=
Not
Scored
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
xii
SURFACE
WATER
OVERLAND/
FLOOD
MIGRATION
COMPONENT
SCORESHEET
DRINKING
WATER
THREAT
(Concluded)

Factor
Categories
and
Factors
Maximum
Value
Value
Assigned
Drinking
Water
Threat
Score
13.
Drinking
Water
Threat
Score
[(
Lines
5
x
8
x
12)/
82,500,
subject
to
a
maximum
of
100]
100
NS
HUMAN
FOOD
CHAIN
THREAT
Likelihood
of
Release
14.
Likelihood
of
Release
(Same
value
as
Line
5)
550
550
Waste
Characteristics
15.
Toxicity/
Persistence/
Bioaccumulation
*
5x10
8
16.
Hazardous
Waste
Quantity
*
100
17.
Waste
Characteristics
1,000
320
Targets
18.
Food
Chain
Individual
50
20
19.
Population:

19a.
Level
I
Concentrations
**
0
19b.
Level
II
Concentrations
**
0
19c.
Potential
Human
Food
Chain
Contamination
**
NS
19d.
Population
(Lines
19a
+
19b
+
19c)
**
0
20.
Targets
(Value
from
Lines
18
+
19d)
**
20
Human
Food
Chain
Threat
Score
21.
Human
Food
Chain
Threat
Score
[(
Lines
14
x
17
x
20)/
82,500,
subject
to
a
maximum
of
100]
100
42.67
NS
=
Not
Scored
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
xiii
SURFACE
WATER
OVERLAND/
FLOOD
MIGRATION
COMPONENT
SCORESHEET
Factor
Categories
and
Factors
Maximum
Value
Value
Assigned
ENVIRONMENTAL
THREAT
Likelihood
of
Release
22.
Likelihood
of
Release
(Same
Value
as
Line
5)
550
550
Waste
Characteristics
23.
Ecosystem
Toxicity/
Persistence/
Bioaccumulation
*
5x10
8
24.
Hazardous
Waste
Quantity
*
100
25.
Waste
Characteristics
1,000
320
Targets
26.
Sensitive
Environments:

26a.
Level
I
Concentrations
**
0
26b.
Level
II
Concentrations
**
25
26c.
Potential
Contamination
**
NS
26d.
Sensitive
Environments
(Lines
26a
+
26b
+
26c)
**
25
27.
Targets
(Value
from
Line
26d)
**
25
Environmental
Threat
Score
28.
Environmental
Threat
Score
[(
Lines
22
x
25
x
27)/
82,500,
subject
to
a
maximum
of
60]
60
53
SURFACE
WATER
OVERLAND/
FLOOD
MIGRATION
COMPONENT
SCORE
FOR
A
WATERSHED
29.
WATERSHED
SCORE***

(Lines
13
+
21
+
28,
subject
to
a
maximum
of
100)
100
95.67
SURFACE
WATER
OVERLAND/
FLOOD
MIGRATION
COMPONENT
SCORE
30.
Component
Score
(Sof)***
(Highest
score
from
Line
29
for
all
watersheds
evaluated,
subject
to
a
maximum
of
100)
100
95.67
NS
=
Not
Scored
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
1
REFERENCE
LISTING
Reference
Number
Description
of
the
Reference
1.
U.
S.
Environmental
Protection
Agency,
Federal
Register­
40
CFR
Part
300,
Hazard
Ranking
System;
Final
Rule,
Volume
55,
No.
241,
December
14,
1990.
135
pages.

2.
U.
S.
Environmental
Protection
Agency,
Superfund
Chemical
Data
Matrix
(SCDM).
June
1996.

3.
U.
S.
Environmental
Protection
Agency,
Hazard
Ranking
System
Guidance
Manual,
Office
of
Solid
Waste
and
Emergency
Response,
Publication
9345.1­
07,
November,
1992.
431
pages
4.
Broach,
Linda,
Field
Operations
Division,
Region
12,
Houston,
Texas
Natural
Resource
Conservation
Commission
and
Crocker,
Phillip,
Water
Quality
Protection,
Region
6,
Dallas,
United
States
Environmental
Protection
Agency.
Containment
Assessment
of
Patrick
Bayou.
December
1996.
70
pages.

5.
Texas
Natural
Resource
Conservation
Commission,
The
State
of
Texas
Water
Quality
Inventory,
Surface
Water
Quality
Monitoring
Program,
13
th
Edition,
1996,
Volume
2
­
Basin
Summaries,
Basin
Maps,
Graphical
Basin
Summaries,
Segment
Fact
Sheets,
and
Water
Quality
Status
Tables
(Basins
1­
10),
SFR­
50.
December
1996.
7
pages.

6.
U.
S.
Geological
Survey,
La
Porte
Quadrangle,
Texas,
7.5
Minute
Series.
Topographic
Map.
Provisional
Edition
1965.
(Site
location,
1­
mile
radius,
legend
and
map
notations
added
by
TNRCC).
1
page.
(Figure
1b).

7.
U.
S.
Environmental
Protection
Agency,
Preliminary
Assessment/
Screening
Site
Inspection
Work
Plan
for
Patrick
Bayou
Site.
TX0
000
605
329,
Deer
Park,
Harris
County,
Texas.
March
2000.
188
pages/
w
attachments.

8.
Texas
Natural
Resource
Conservation
Commission.
Quality
Assurance
Project
Plan
for
Texas
Natural
Resource
Conservation
Commission
Preliminary
Assessment/
Site
Inspection
Program
(FY
2000
and
2001).
October
1999.
143
pages/
w
attachments.

9.
U.
S.
Environmental
Protection
Agency.
Office
of
Emergency
and
Remedial
Response,
Quick
Reference
Fact
Sheet
(5204G),
Using
Qualified
Data
to
Document
an
Observed
Release
and
Observed
Contamination.
EPA
540­
F­
95­
033.
OSWER
9285­
7­
14FS.
PB95­
963320.
November
1996.
18
pages.

10.
U.
S.
Environmental
Protection
Agency,
Screening
Site
Inspection
Field
Log
Book
notes
and
photographs.
March
27
­
30,
2000.
70
pages.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
2
REFERENCE
LISTING
(continued)
Reference
Number
Description
of
the
Reference
11.
Texas
Department
of
Transportation.
County
Maps
of
Texas,
1994.
General
High­
way
Map
of
Harris
County,
Texas,
revised
to
January
1,
1994
data.
Dated
1992.
(Site
location
and
1­
mile
radius
notations
added
by
TNRCC).
page
102.
(Figure
2).
2
pages
12.
U.
S.
Environmental
Protection
Agency,
Region
6,
Houston
Branch,
Case
Number
27912,
Sample
Designation
Group
MFHM71,
CLP
Data
Review
and
Inorganic
Regional
Data
Assessment
Package.
From:
Marvelyn
Humphrey,
Alt.
ESAT
RPO,
6MD­
HC,
To:
B.
Rhotenberry,
6SFRA
May
25,
2000.
25
pages.

13.
U.
S.
Environmental
Protection
Agency,
Region
6,
Houston
Branch,
Case
Number
27912,
Sample
Designation
Group
MFHW65,
CLP
Data
Review
and
Inorganic
Regional
Data
Assessment
Package.
From:
Marvelyn
Humphrey,
Alternate
ESAT
RPO,
6MD­
HC,
To:
B.
Rhotenberry,
6SF­
RA.
June
8,
2000.
31
pages.

14.
U.
S.
Environmental
Protection
Agency,
Region
6,
Houston
Branch,
Case
Number
27912,
Sample
Designation
Group
FGA73,
CLP
Data
Review
and
Organic
Regional
Data
Assessment
Package.
From:
Marvelyn
Humphrey,
Alternate
ESAT
RPO,
6MD­
HC,
To:
B.
Rhotenberry,
6SF­
RA.
July
6,
2000.
145
pages.

15.
U.
S.
Environmental
Protection
Agency,
Region
6,
Houston
Branch,
Case
Number
27912,
Sample
Designation
Group
FGW45,
CLP
Data
Review
and
Organic
Regional
Data
Assessment
Package.
From:
Marvelyn
Humphrey,
Alternate
ESAT
RPO,
6MD­
HC,
To:
B.
Rhotenberry,
6SF­
RA.
July
6,
2000.
163
pages.

16.
U.
S.
Department
of
the
Interior.
National
Wetlands
Inventory
map.
La
Porte,
Texas
Quadrangle.
1999.
1
page.

17.
Texas
Natural
Resource
Conservation
Commission,
Compliance
Evaluation
Inspection
(CEI),
and
Boiler
and
Industrial
Furnace
(BIF)
Inspection
conducted
on
November
30
and
December
3,
9
and
10,
1998,
letters/
w
attachments.
From:
Aron
Athavaley,
Field
Investigator,
Region
12
Office,
Houston,
To:
Files.
January
12,
1999.
82
pages.

18.
Texas
Natural
Resource
Conservation
Commission,
Comprehensive
Monitoring
Evaluation
(CME)
at:
The
Lubrizol
Corporation,
41
Tidal
Road,
Deer
Park
(Harris
County),
Texas,
letter/
w
attachments.
From:
Rama
Yadav,
Ph.
D.,
P.
E.,
Team
Leader,
Waste
Section,
Region
12
Office,
Houston,
To:
Julius
Rexer,
Sr.
Env.
Eng.,
Lubrizol
Corporation,
Pasadena,
Texas.
August
16,
2000.
40
pages.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
3
REFERENCE
LISTING
(continued)
Reference
Number
Description
of
the
Reference
19.
Texas
Natural
Resource
Conservation
Commission,
Compliance
Evaluation
Inspection
(CEI)
conducted
on
November
2,
7
and
9,
1995,
letter/
w
attachment.
From
Matthew
Chun,
Field
Investigator,
Region
12
Office,
Houston,
To:
Files.
December
13,
1995.
23
pages.

20.
Texas
Natural
Resource
Conservation
Commission,
Patrick
Bayou
Site,
Screening
Site
Inspection
(SSI)
Data
Assessment.
7
pages.

21.
Texas
Department
of
Health,
Seafood
Safety
Division.
Fish
Advisories
and
Bans,
1997.
6
pages.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
4
SD­
Characterization
and
Containment
SOURCE
DESCRIPTION
2.2
SOURCE
CHARACTERIZATION
2.2.1
Source
Identification
Number
of
the
source:
1
Name
and
description
of
the
source:
Other
(Contaminated
Sediments)

The
Patrick
Bayou
site
Source
1
consists
of
contaminated
sediments
retained
within
the
boundaries
of
Patrick
Bayou
and
the
East
Fork
tributary
as
illustrated
in
Figures
1b
and
2
containing
elevated
heavy
metals,
volatile
and
semi­
volatile
organic
compounds,
pesticides
and
PCBs.
The
site
was
initially
identified
to
the
TNRCC
from
studies
completed
in
1993
and
1994
by
the
City
of
Houston
investigating
wastes
accumulating
within
the
Houston
Ship
Channel
(HSC)
and
its
tributaries
from
nearby
petrochemical
plants
and
accidental
shipping
spills
(Ref.
4,
p.
9).
A
July
26,
1994
TNRCC
Region
12
Office
follow­
up
investigation
jointly
sponsored
by
the
EPA
Region
6
Office
confirmed
initial
findings
and
greatly
expanded
the
area
of
documented
contamination.
During
the
1994
investigation,
eleven
(11)
sediment
samples
and
a
duplicate
and
five
(5)
surface
water
samples
were
collected
from
selected
locations
within
Patrick
Bayou,
at
an
up­
stream
location
before
any
identified
outfall
source,
along
the
East
Fork
tributary
and
at
the
TNRCC
routine
water
quality
sampling
station
(TNRCC
Station
No.
1006.9150)
located
in
the
mouth
of
Patrick
Bayou
(Ref.
4,
pp.
12,
28­
32,
39
and
50).
The
1994
selected
sample
station
locations
(marked
prior
sample
stations)
are
shown
in
Figure
3.
Sediment
samples
were
analyzed
for
priority
pollutants
and
water
samples
were
tested
for
routine
water
quality
parameters
(Ref.
4,
pp.
14
and
61­
64).

The
1994
sample
results
revealed
more
than
40
percent
of
the
sediment
samples
in
Patrick
Bayou
exceeded
either
the
TNRCC
sediment
screening
levels
(85
th
percentile
for
tidal
streams,
TNRCC
1994a
and/
or
National
Oceanic
and
Atmospheric
Administration
[NOAA]
Effects­
Range
Low
[ERL]
and
EffectRange
Median
[ERM]
values,
Long
et
al.
1995)
or
the
draft
EPA
Sediment
Quality
Guideline
[SQG]
values,
USEPA
1994,
that
had
been
published
for
chromium,
copper,
lead,
mercury,
nickel,
selenium,
zinc,
hexachlorobenzene,
polychlorinated
biphenyls
(PCBs),
and
bis(
2­
ethylhexyl)
phthalate
(Ref.
4,
pp.
2
and
15).
Very
high
levels
of
mercury
(8.3
mg/
Kg
at
Station
No.
3
shown
in
Figure
3),
hexachlorobenzene
(83,900
µg/
Kg
at
Station
No.
2),
hexachlorobutadiene
(138,000
µg/
Kg
at
Station
No.
2),
PCBs
(Aroclor
1248
4,150
µg/
Kg
at
Station
No.
7),
polynuclear
aromatic
hydrocarbons
(total
PAHs
97,380
µg/
Kg
at
Station
No.
3)
and
lead
(269
mg/
Kg
at
Station
No.
9)
were
found
within
Patrick
Bayou
sediments
(Ref.
4,
pp.
44­
45).

Lesser
values
of
acenapthene,
acenaphthylene,
anthracene,
benzo(
a)
anthracene,
benzo(
a)­
pyrene,
chrysene,
fluoranthene,
fluorene,
2­
methylnaphthalene,
naphthalene
and
pyrene
were
also
detected
in
sediments
collected
from
Stations
No.
1,
2,
2.5,
3,
7
and
9
that
exceeded
published
NOAA
ERM
values
indicating
a
significant
accumulation
of
priority
pollutants.
The
higher
values
and
most
significant
number
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
5
of
pollutants
were
detected
at
sample
Stations
No.
3,
7
and
9
indicating
contamination
may
be
originating
from
a
multitude
locations
along
the
entire
bayou
(Ref.
4,
pp.
28­
32,
44­
46
and
52­
56).
Based
on
prior
studies
and
the
1994
sampling
results,
specific
discharge
sources
for
the
contaminants
of
concern
could
not
be
sufficiently
identified,
but
provided
specific
information
on
their
potential
sources
(Ref.
4,
p.
2).
Therefore,
this
HRS
Documentation
Record
will
consider
the
identified
contaminated
sediments
to:
(1)
have
originated
from
historical
accumulation
within
Patrick
Bayou
from
a
multitude
of
potential
outfall/
discharge
sources
and
(2)
they
will
be
defined
as
"the
source"
for
further
waste
characterization
in
this
section.

Location
of
the
source,
with
reference
to
a
map
of
the
site:

See
Figure
1b,
Site
Location
and
Surrounding
Land
Use
Map.
The
contaminated
area
within
Patrick
Bayou
is
identified
as
beginning
at
the
combined
storm
water/
outfall
discharge
drains
(box
culverts)
near
the
Station
No.
7/
SE­
17
sample
location
located
approximately
1,800'
north
of
SH
225
and
ending
just
beyond
the
convergence
of
Patrick
Bayou
with
the
HSC
and
includes
a
portion
of
the
East
Fork
tributary
located
just
west
of
the
railroad
bridge
beginning
at
the
SE­
14
sample
location
that
is
approximately
750'
downstream
from
the
Station
No.
10
location
shown
in
Figure
3.
The
contaminated
area
is
described
in
more
detail
in
Section
4.1.2.1.1
and
the
source
was
delineated
using
sample
results
presented
in
Table
6.
The
estimated
lineal
distance
is
approximately10,100'
(1.91
mi.)
(Ref.
10,
pp.
3,
11,
26
and
29).

Source
type
for
HRS
evaluation
purposes:
Other
(Contaminated
sediments).

Containment
Gas
release
to
air:
The
air
migration
pathway
was
not
evaluated;
therefore,
gas
containment
was
not
evaluated
(Ref.
7,
pp.
13
and
24).

Particulate
release
to
air:
The
air
migration
pathway
was
not
evaluated;
therefore,
particulate
containment
was
not
evaluated
(Ref.
7,
pp.
13
and
24).

Release
to
ground
water:
The
ground
water
migration
pathway
with
respect
to
the
contaminated
sediments
was
not
evaluated
for
lack
of
identified
ground
water
targets
(Ref.
7,
pp.
1
and
10).

Release
via
overland
migration
and/
or
flood:
Source
consists
of
contaminated
sediments.
There
is
no
containment
and
no
liner
present
to
prevent
the
migration
of
hazardous
substances
from
the
contaminated
sediments.
Evidence
of
migration
was
based
on
elevated
levels
of
contaminants
detected
throughout
Patrick
Bayou
releasing
to
the
adjacent
HSC
(as
substantiated
during
the
SSI)
and
for
lack
of
any
physical
barrier
or
containment
structure
noted
along
the
surface
water
migratory
pathway
(Ref.
10,
pp.
3,
5,
6
and
8).
Therefore,
the
contaminated
sediments
were
assigned
a
containment
factor
value
of
10
as
specified
in
Table
4­
2
of
the
HRS
Rule
(Ref.
1,
Section
4.1.2.1.2.1.1).
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
6
Figure
2
Site
Features
Map
Patrick
Bayou
Site
A
copy
of
the
site
location
map
is
available
at
the
EPA
Headquarters
Superfund
Docket:

U.
S.
CERCLA
Docket
Office
Crystal
Gateway
#1,
1st
Floor
1235
Jefferson
Davis
Highway
Arlington,
VA
22202
Telephone:
(703)
603­
8917
E­
Mail:
superfund.
docket@
epa.
gov
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
7
Figure
3
Sediment
Sample
Locations
Patrick
Bayou
Site
A
copy
of
the
site
location
map
is
available
at
the
EPA
Headquarters
Superfund
Docket:

U.
S.
CERCLA
Docket
Office
Crystal
Gateway
#1,
1st
Floor
1235
Jefferson
Davis
Highway
Arlington,
VA
22202
Telephone:
(703)
603­
8917
E­
Mail:
superfund.
docket@
epa.
gov
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
8
SD­
Characterization
and
Containment
Source
No.
1,
Other
(Contaminated
Sediments)

2.2.2
Hazardous
Substances
Associated
with
a
Source
Based
on
the
results
of
the
March
27­
30,
2000
SSI,
the
source
area
is
defined
as
the
contaminated
sediments
within
the
HSC,
the
East
Fork
Tributary
and
Patrick
Bayou.
Table
1
below
represents
the
eighteen
(18)
individual
samples
collected
during
the
SSI
that
define
the
source
area.
For
a
complete
list
of
hazardous
substances
that
meet
observed
release
criteria
and
their
concentrations
at
each
sample
location,
see
Table
6.

Locations
of
samples
are
depicted
in
Figure
3.

TABLE
1
Source
Description
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
CLP
Sample
ID
Sample
ID
No./
Location
Sample/
Depth
Date
Collected
Location
Reference
MFHW68
FGW48
SE­
04/
HSC
sample
Confluence
of
HSC
and
Patrick
Bayou
Grab
Sample
0"­
18"
deep
3/
28/
00
Figure
3
Ref.
10,
pp.
9,
11,
16
Photos
#13,
14
MFHW69
FGW49
SE­
05/
HSC
sample
Confluence
of
HSC
and
Patrick
Bayou
Composite
0"­
20"
deep
3/
28/
00
Figure
3
Ref.
10,
pp.
9,
11,
17
Photo
#15
MFHW70
FGW50
SE­
06/
HSC
sample
Duplicate
sample
of
SE­
05
for
QA/
QC
requirements.
Same
as
SE­
05
3/
28/
00
Figure
3
Ref.
10,
pp.
9,
11,
18
Photo
#16
MFHW71
FGW51
SE­
07/
HSC
sample
Down­
channel
sample
300'
west
of
OxyVinyl
outfall
Grab
Sample
0"­
16"
deep
3/
28/
00
Figure
3
Ref.
10,
pp.
9,
11,
19
Photos
#9,
10
MFHW72
FGW52
SE­
08/
HSC
sample
Down­
channel
sample
300'
west
of
OxyVinyl
outfall
Composite
0"­
18"
deep
3/
28/
00
Figure
3
Ref.
10,
pp.
9,
11,
20
Photo
#12
MFHW73
FGW53
SE­
09/
HSC
sample
Duplicate
sample
of
SE­
08
for
QA/
QC
requirements.
Same
as
SE­
08
3/
28/
00
Figure
3
Ref.
10,
pp.
9,
11,
21
Photo
#12
MFHW78
FGW58
SE­
14/
East
Fork
Tributary
Near
the
confluence
of
East
Fork
with
Patrick
Bayou
Composite
0"­
14"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
9,
11,
26
Photos
#33,
34
Table
1
continued
...
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
9
SD­
Hazardous
Substances
Source
No.
1:
Other
(Contaminated
Sediments)

TABLE
1
(continued)

Source
Description
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
CLP
Sample
Sample
Location/
Event
Sample
Depth
Date
Collected
Location
Reference
MFHW81
FGW61
SE­
17/
Patrick
Bayou
40
meters
downstream
from
Lubrizol/
Deer
Park
Outfall
Composite
0"­
6"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
9,
11,
29
Photo
#30
MFHW82
FGW62
SE­
18/
Patrick
Bayou
20
meters
downstream
from
Shell
Road
Bridge/
west
bank
Composite
0"­
8"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
30
Photo
#32
MFHW83
FGW63
SE­
19/
Patrick
Bayou
approx.
800'
north
of
confluence
with
East
Fork
Composite
0"­
18"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
31
Photo
#39,
40
MFHW84
FGW64
SE­
20/
Patrick
Bayou
60
meters
N.
Oxyvinyl
#001
24
meters
from
E.
shoreline
Composite
0"­
20"
deep
3/
29/
00
Figure
3
Ref.
10,
pp.
10,
11,
32
Photo
#17
MFHW85
FGW65
SE­
21/
Patrick
Bayou
Duplicate
sample
of
SE­
20
for
QA/
QC
requirements.
Same
as
SE­
20.
3/
29/
00
Figure
3
Ref.
10,
pp.
10,
11,
33
Photo
#18
MFHW86
FGW66
SE­
22/
Patrick
Bayou
45
meters
S.
Oxyvinyl
#003
21
meters
from
E.
shoreline
Composite
0"­
18"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
34
Photo
#25
MFHW87
FGW67
SE­
23/
Wetland
sample
700'
north
of
East
Fork
Along
edge
of
east
bank
Composite
0"­
20"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
35
Photos
#37,
38
MFHW88
FGW68
SE­
24/
Patrick
Bayou
83
meters
south
of
island
17
meters
from
E.
shoreline
Composite
0"­
16"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
36
Photos
#21,
22
MFHW89
FGW69
SE­
25/
Wetland
sample
approx.
60'
N.
of
SE­
14
Along
edge
of
east
bank
Composite
0"­
22"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
37
Photos
#35,
36
MFHW90
FGW70
SE­
26/
Patrick
Bayou
approx.
200'
E.
of
bridge
in
lower
bayou
area
Grab
Sample
0"­
18"
deep
3/
28/
00
Figure
3
Ref.
10,
pp.
10,
11,
38
Photo
#26
(not
avail)

Table
1
continued
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
10
TABLE
1
(continued)

Source
Description
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
CLP
Sample
Sample
Location/
Event
Sample
Depth
Date
Collected
Location
Reference
MFHW91
FGW71
SE­
27/
Wetland
sample
Along
NE
shoreline
of
island
in
Patrick
Bayou
Composite
0"­
15"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
39
Photo
#19
Notes:
QA/
QC
=
Quality
Assurance/
Quality
Control
CLP
=
Contract
Laboratory
Procedures
Source
samples
SE­
04
thru
SE­
09
in
the
Houston
Ship
Channel,
SE­
14
near
the
confluence
with
the
East
Fork
tributary
and
SE­
19
thru
SE­
27
within
Patrick
Bayou
were
all
collected
with
a
stainless
steel
sediment
coring
device.
In
addition,
dedicated
decontaminated
stainless
steel
screw­
on
tips
were
used
to
hold
clean
polyethylene
zero­
contamination
tubes
within
the
device.
Source
sample
SE­
17
and
SE­
18
in
the
upper
portion
of
Patrick
Bayou
were
collected
using
clean
dedicated
stainless
steel
bowls
and
spoons
instead
of
the
sediment
coring
device
(Ref.
10,
pp.
29­
30).
Since
the
upper
portion
of
the
East
Fork
tributary
is
shallow
containing
many
small
rocks
and
gravel
and
the
upper
portion
of
Patrick
Bayou
is
mostly
gunite
or
concrete
lined,
obtaining
sufficient
volume
using
the
coring
sampling
tool
was
determined
unsuitable
(Ref.
10,
pp.
16­
21
and
31­
40).
The
source
samples
exhibited
elevated
concentrations
of
both
inorganic
and
organic
constituents.

All
samples
were
collected
according
to
the
EPA
approved
state
Quality
Assurance
Project
Plan
and
sample
locations
were
approved
by
the
EPA
prior
to
sample
collection
(Ref.
8,
pp.
1­
52;
Ref.
7,
pp.
1­
27).

2.2.3
Hazardous
Substances
Available
to
a
Pathway
Because
containment
for
this
source
is
greater
than
0,
the
following
hazardous
substances
associated
with
the
source
can
migrate
via
the
surface
water
migration
pathway:

Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Nickel
Silver
Vanadium
Zinc
Cyanide
Carbon
Disulfide
Cyclohexane
Benzene
Metylcyclohexane
Toluene
Chlorobenzene
Ethylbenzene
Xylenes
(Total)
Isopropylbenzene
1,3­
Dichlorobenzene
1,4­
Dichlorobenzene
Hexachlorobutadiene
2­
Methylnaphthalene
Hexachlorobenzene
Aldrin
Endosulfan
I
Endrin
Aroclor
1248
Aroclor
1254
Aroclor
1260
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
11
SD­
Waste
Characterization
Source
No.
1:
Other
(Contaminated
Sediments)

2.3
LIKELIHOOD
OF
RELEASE
Refer
to
Section
4.1.2.1
of
this
documentation
record
for
specific
information
related
to
the
Likelihood
of
Release
to
the
Surface
Water
Pathway.

2.4
WASTE
CHARACTERIZATION
2.4.1
Selection
of
Substance
Potentially
Posing
Greatest
Hazard
All
of
the
hazardous
substances
listed
above
are
associated
with
this
source.

Specific
toxicity
factors,
HRS
Section
2.4.1.1
and
selection
of
the
hazardous
substances
with
the
highest
factor
values
(toxicity,
persistence,
and
bioaccumulation),
HRS
Section
2.4.1.2,
are
presented
under
the
Surface
Water
Migration
Pathway
section
of
this
documentation
record
report.

2.4.2
Hazardous
Waste
Quantity
2.4.2.1
Source
Hazardous
Waste
Quantity
2.4.2.1.1
Hazardous
Constituent
Quantity
(Tier
A)
­
Not
Evaluated
(NE)

The
information
available
is
not
sufficient
to
evaluate
Tier
A,
as
required
in
Section
2.4.2.1.1
of
the
HRS
Rule.
As
a
result,
the
evaluation
of
Hazardous
Waste
Quantity
proceeds
to
the
evaluation
of
Tier
B,
hazardous
waste
stream
quantity
(Ref.
1).

2.4.2.1.2
Hazardous
Wastestream
Quantity
(Tier
B)
­
NE
The
information
available
is
not
sufficient
to
evaluate
Tier
B,
as
required
in
Section
2.4.2.1.2
of
the
HRS
Rule.
Therefore,
quantity
is
unknown,
but
greater
than
zero.
As
a
result,
the
evaluation
of
Hazardous
Waste
Quantity
proceeds
to
the
evaluation
of
Tier
C,
volume
(Ref.
1).

2.4.2.1.3
Volume
(Tier
C)
­
NE
The
information
available
is
not
sufficient
to
evaluate
Tier
C,
as
required
in
Section
2.4.2.1.3
of
the
HRS
Rule.
As
a
result,
the
evaluation
of
Hazardous
Waste
Quantity
proceeds
to
the
evaluation
of
Tier
D,
area
(Ref.
1).
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
12
2.4.2.1.4
Area
(Tier
D)

Tier
D
is
not
evaluated
for
source
type
"Other"
(Ref.
1,
Section
2.4.2.1.4,
Table
2­
5).

Although
the
source
volume
was
not
adequately
determined
and
its
extent
is
unknown,
the
value
is
greater
than
0,
but
unknown.

Dimension
of
source
(yds
3
or
gallons):
>
0,
but
unknown.
Reference(
s):
Ref.
1,
Section
2.4.2.1.4,
Table
2­
5.
Volume
Assigned
Value:
>
0,
but
unknown
2.4.2.1.5
Source
Hazardous
Waste
Quantity
Value
As
described
in
the
HRS
Rule,
the
highest
value
assigned
to
a
source
from
among
the
four
tiers
of
hazardous
constituent
quantity
(Tier
A),
hazardous
wastestream
quantity
(Tier
B),
volume
(Tier
C)
or
area
(Tier
D)
shall
be
selected
as
the
source
hazardous
waste
quantity
value.
(Ref.
1,
Sections
2.4.2.1.1­
4).

TABLE
2
Source
No.
1
­
Other
(Contaminated
Sediments)
Source
Hazardous
Waste
Quantity
Tier
Measure
Migration
Pathway
(Surface
Water)

Tier
A,
Constituent
Quantity
NE
Tier
B,
Wastestream
Quantity
NE
Tier
C,
Volume
>
0,
but
unknown
Tier
D,
Area
NE
NE
=
not
evaluated.

Source
Hazardous
Waste
Quantity
Value:
>
0,
but
unknown
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
13
SD­
Summary
SITE
SUMMARY
OF
SOURCE
DESCRIPTIONS
TABLE
3
Source
Number
Source
Hazardous
Waste
Quantity
Value
Containment
Ground
Water
Surface
Water
Gas
Air
Particulate
1
>
0
Not
Evaluated
10
Not
Evaluated
Not
Evaluated
Total
>
0,
but
unknown
The
sum
of
the
Source
No.
1
hazardous
waste
quantity
of
>
0
is
assigned
as
the
Source
Hazardous
Waste
Quantity
Value
(Ref.
1,
Section
2.4.2.2).
The
sum
of
the
source
hazardous
waste
quantity
values
for
Patrick
Bayou
site,
rounded
to
the
nearest
integer
is
>
0,
but
unknown.

The
Hazardous
Waste
Quantity
Factor
Value
assigned
to
a
Source
Hazardous
Waste
Quantity
Value
of
>
0,
but
unknown
is
100
(Ref.
1,
Section
2.4.2.2).

[Note:
See
discussion
under
Section
4.1.4.3.1
of
this
report
for
rationale
used
to
determine
a
Hazardous
Waste
Quantity
Factor
Value
when
a
pathway
target
is
subjected
to
Level
I
or
Level
II
concentrations].

Source
Hazardous
Waste
Quantity
Value:
>
0,
but
unknown
Hazardous
Waste
Quantity
Factor
Value:
100
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
14
GW­
General
3.0
GROUND
WATER
MIGRATION
PATHWAY
3.0.1
General
Considerations
Since
the
"site"
is
defined
as
the
accumulated
contaminated
sediments
within
Patrick
Bayou,
the
Groundwater
and
Groundwater
to
Surface
Water
Pathways
will
not
be
evaluated.
The
drinking
water
threat
was
not
evaluated
due
to
lack
of
targets
and
because
the
inclusion
of
this
threat
would
not
significantly
effect
the
site
score.
The
Surface
Water
Pathway
will
be
evaluated
to
assess
potential
contaminant
migration.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
15
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
4.0
SURFACE
WATER
MIGRATION
PATHWAY
4.1
OVERLAND/
FLOOD
MIGRATION
COMPONENT
There
were
no
ground
water
to
surface
water
migration
components
identified
located
within
the
watershed
being
evaluated.
Therefore,
only
the
Overland/
Flood
Migration
to
Surface
Water
Component
will
be
evaluated
for
the
watershed
of
concern
(Ref.
1,
Section
4.1).

4.1.1
General
Considerations
Patrick
Bayou
drains
north
then
northeast
discharging
to
Stream
Segment
1006
of
the
San
Jacinto
River
Basin
(Houston
Ship
Channel
Tidal)
with
the
widest
portion
of
Patrick
Bayou
entering
the
Houston
Ship
Channel
(HSC)
as
shown
in
Figures
1b
and
2
(Ref.
10,
pp.
6
and
8).
Stream
Segment
1006
extends
6
miles
easterly
from
a
point
located
immediately
upstream
of
Green
Bayou
in
Harris
County
to
its
confluence
with
the
main
fork
of
the
San
Jacinto
River
(Ref.
5,
p.
5).
The
tidal
portion
of
the
HSC
is
highly
developed,
industrialized
and
has
allowed
the
City
of
Houston
to
become
an
international
port
(Ref.
4,
p.
7;
Ref.
5,
p.
3).
See
Figure
4
for
the
location
of
Patrick
Bayou
and
the
HSC
within
Stream
Segment
1006.

Segment
1006
is
classified
"Water
Quality
Limited"
due
to
numerous
water
quality
standard
violations
with
advanced
wastewater
treatment
required
prior
to
any
other
intended
use.
Designated
uses
include:
industrial
water
supply
and
navigation.
Along
this
segment
there
are
88
domestic
outfalls
and
35
industrial
outfalls
with
a
total
average
daily
discharge
of
273.33
million
gallons
(Ref.
5,
p.
5).
A
restricted­
consumption
advisory
(AD­
3,
issued
September
19,
1990)
for
the
general
population
and
a
no­
consumption
advisory
for
children
and
women
of
childbearing
age
have
been
issued
for
the
Houston
Ship
Channel
and
all
contiguous
waters
and
Upper
Galveston
Bay
area
by
the
Texas
Department
of
Health
due
to
elevated
levels
of
dioxin
in
blue
crabs
and
all
species
of
catfish
(Ref.
4,
p.
13;
Ref.
5,
pp.
3­
5;
Ref.
21,
pp.
5­
6).

Segment
1006
drains
east
entering
the
lower
portion
of
Stream
Segment
1005
before
discharging
to
Galveston
Bay
(Ref.
10,
pp.
6
and
8).
Segment
1005
begins
upstream
at
a
point
located
100
meters
(110
yds)
downstream
(south)
of
the
Interstate
Highway
(IH)
10
bridge
in
Harris
County
and
extends
12
miles
southeast
to
its
confluence
with
Galveston
Bay
at
Morgan's
Point
located
at
the
Harris/
Chambers
County
boundary
line
(Ref.
5,
p.
7).
See
Figure
4
for
the
location
of
the
lower
portion
of
Stream
Segment
1005.

Segment
1005
is
also
classified
"Water
Quality
Limited"
due
to
water
quality
standards
violations
with
advanced
waste
treatment
required.
Designated
water
uses
include:
non­
contact
recreation
and
high
aquatic
life.
Along
this
segment
there
is
1
domestic
outfall
and
14
industrial
outfalls
with
a
total
average
daily
discharge
of
37.14
million
gallons
(Ref.
5,
p.
7).
Segment
1005
has
the
same
restricted­
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
16
consumption
advisory
for
the
general
population
and
a
no­
consumption
advisory
for
children
and
women
of
childbearing
age
issued
by
the
Texas
Department
of
Health
due
to
elevated
levels
of
dioxin
in
blue
crabs
and
all
species
of
catfish
(Ref.
5,
p.
7;
Ref.
21,
pp.
5­
6).
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
17
Figure
4
Surface
Water
Pathway
Patrick
Bayou
Site
A
copy
of
the
site
location
map
is
available
at
the
EPA
Headquarters
Superfund
Docket:

U.
S.
CERCLA
Docket
Office
Crystal
Gateway
#1,
1st
Floor
1235
Jefferson
Davis
Highway
Arlington,
VA
22202
Telephone:
(703)
603­
8917
E­
Mail:
superfund.
docket@
epa.
gov
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
18
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
4.1.1.1
Definition
of
Hazardous
Substance
Migration
Path
for
Overland/
Flood
Migration
Component
Overland
Segment,
Probable
Point
of
Entries
(PPEs),
Number
of
Watersheds
As
described
in
the
HRS
Rule,
Section
4.1.1.1,
there
is
no
overland
segment
for
hazardous
substance
migration
from
a
source
area
that
consists
of
contaminated
sediments
with
no
identified
source,
and
the
hazardous
substance
migration
path
consists
solely
of
the
in­
water
segment
(Ref.
1).
For
the
Patrick
Bayou
site,
the
source
area
begins
at
the
two
farthest
upstream
sample
locations
and
continues
to
the
most
distant
downstream
sample
location
meeting
observed
release
criteria.
Since,
for
this
site,
the
release
to
surface
water
defines
the
source
and
there
is
no
overland
route,
and
because
all
PPEs
to
the
bayou
have
not
been
identified.
it
was
determined
more
important
to
use
the
phrase
"upper
boundary"
for
the
area
of
contaminated
sediments
instead
of
Probable
Point
of
Entry
(PPE).
There
are
two
(2)
Upper
Boundaries
for
this
site
identified
as
the
farthest
upstream
sample
location
in
Patrick
Bayou
(SE
­17)
designated
as
Upper
Boundary
No.
1
and
the
farthest
upstream
sample
location
in
the
East
Fork
tributary
(SE­
14)
designated
as
Upper
Boundary
No.
2.
In
addition,
as
specified
by
the
HRS
Rule,
since
the
two
hazardous
substance
migration
pathways
associated
with
the
upper
boundaries
reach
a
common
point
within
the
target
distance
limit,
only
one
watershed
will
be
evaluated
for
this
documentation
record
report
(Ref.
1,
Section
4.1.1.1).

4.1.1.2
Target
Distance
Limit
As
specified
in
the
HRS
Rule,
Section
4.1.1.2,
for
sites
consisting
of
contaminated
sediments
with
no
identified
source,
the
in­
water
segment
is
defined
as
located
between
the
two
furthest
observed
release
criteria
sample
locations
(Ref.
1).
Additionally,
the
HRS
Rule
specifies
the
target
distance
limit
(TDL)
for
this
same
site
with
a
clearly
defined
flow
direction
as
the
in­
water
segment
measured
from
the
furthest
sample
location
upstream
meeting
observed
release
criteria
to
the
most
distant
downstream
sample
location
also
meeting
observed
release
criteria,
or
to
the
15­
mile
down­
stream
distance,
whichever
is
greater
(Ref.
1).

For
the
Patrick
Bayou
site,
the
target
distance
limit
was
determined
from
a
review
of
observed
release
criteria
for
the
two
farthest
sampling
locations
identified
within
the
surface
water
hazardous
substance
migration
pathway.
The
furthest
distance
was
determined
as
between
sample
locations
SE­
17
(Upper
Boundary
No.
1)
located
at
the
box
channel
discharge
point
in
the
upper
portion
of
Patrick
Bayou
extending
to
the
15­
mile
TDL
arc
within
Galveston
Bay
as
shown
in
Figure
4.

Definition
of
In­
Water
Segments/
Target
Distance
Limit
The
Target
Distance
Limit
(TDL)
for
this
site
is
comprised
of
four
(4)
Hazard
Ranking
System
(HRS)
InWater
Segments
which
are
included
within
two
(2)
State
of
Texas
Water
Quality
Stream
Segments.
The
components
of
these
HRS
In­
Water
segments
are
discussed
below:
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
19
(1)
In­
Water
Segment
No.
1
(Upper
Patrick
Bayou
to
Confluence
with
HSC)
­
Level
II:
(approximately
1.91
miles)
is
defined
as
the
in­
water
distance
from
Upper
Boundary
No.
1
(sample
location
SE­
17)
along
Patrick
Bayou
to
its
confluence
with
the
HSC
and
includes
a
portion
of
the
lower
East
Fork
Tributary.
The
entire
segment
comprises
the
Patrick
Bayou
source
ite
and
is
located
within
Stream
Segment
1006
(Houston
Ship
Channel
Tidal)
of
the
San
Jacinto
River
Basin
(Figure
4;
Ref.
10,
p.
8;
Ref.
5,
pp.
3­
5).

(2)
In­
Water
Segment
No.
2
(Confluence
with
Patrick
Bayou
to
Confluence
with
San
Jacinto
River)
Potential
(approximately
2.5
miles)
is
defined
as
the
in­
water
distance
along
the
HSC
from
the
confluence
with
Patrick
Bayou
to
the
confluence
with
the
main
fork
of
the
San
Jacinto
River.
The
entire
segment
is
located
within
Stream
Segment
1006
(HSC
Tidal)
of
the
San
Jacinto
River
Basin
(Figure
4;
Ref.
10,
p.
8;
Ref.
5,
pp.
3­
5).

(3)
In­
Water
Segment
No.
3
(Confluence
with
San
Jacinto
River
to
Galveston
Bay)
­
Potential:
(approximately
9.5
miles)
is
defined
as
the
in­
water
distance
along
the
main
fork
of
the
San
Jacinto
River
from
its
confluence
with
the
HSC
to
Morgan's
Point
at
the
entrance
to
Galveston
Bay.
The
entire
segment
is
located
within
Stream
Segment
1005
(HSC/
San
Jacinto
River
Tidal)
of
the
San
Jacinto
River
Basin
(Figure
4;
Ref.
10,
p.
8;
Ref.
5,
pp.
3­
5).

(4)
In­
Water
Segment
No.
4
(Galveston
Bay
to
the
15­
Mile
Arc)
­
Potential:
(approximately
1.0
miles)
is
defined
as
the
in­
water
area
within
an
arc
extending
past
Morgan's
Point
into
Galveston
Bay
(Figure
4;
Ref.
10,
p.
8;
Ref.
5,
pp.
3­
5).

4.1.1.3
Evaluation
of
Overland/
Flood
Migration
Component
As
described
in
the
HRS
Rule,
Section
4.1.1.3,
since
there
is
only
one
watershed
area,
the
resulting
score
for
that
watershed
will
become
the
overland/
flood
migration
component
score
for
the
site.
In
addition,
since
there
were
no
drinking
water
targets
identified
within
the
defined
TDL,
the
overland/
flood
migration
component
will
be
evaluated
for
human
food
chain
and
environmental
threats
based
on
three
factor
categories:
likelihood
of
release,
waste
characteristics
and
targets.
The
resulting
Overland/
Flood
Migration
pathway
score
will
be
used
to
evaluate
the
Surface
Water
Migration
Pathway
site
score
(Ref.
1;
Ref.
10,
pp.
6
and
8).

4.1.2
Drinking
Water
Threat
The
drinking
water
threat
was
not
evaluated
due
to
lack
of
significant
drinking
water
targets
located
along
the
overland/
flood
migration
pathway
within
the
identified
TDL.
Documentation
for
an
observed
release
follows,
then
evaluation
will
proceed
to
HRS
Rule,
Sections
4.1.3
and
4.1.4
for
evaluation
of
the
human
food
chain
and
environmental
threats
(Ref.
1).
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
20
4.1.2.1
Drinking
Water
Threat
­
Likelihood
of
Release
4.1.2.1.1
Observed
Release
An
observed
release
can
be
documented
in
the
HRS
system
by
two
methods:
(a)
direct
observation
and
(b)
chemical
analysis
(Ref.
1).
The
chemical
analysis
method
was
used
for
this
report.

Chemical
Analysis
Establishing
an
observed
release
by
chemical
analysis
requires
attributing
the
hazardous
substances
to
the
site.
First,
naturally
occurring
background
concentrations
of
the
hazardous
substances
must
be
determined.
Second,
it
must
be
demonstrated
that
the
concentrations
of
the
hazardous
substances
in
a
release
sample
are
significantly
above
the
highest
identified
background
level
and
some
portion
of
the
significant
increase
must
be
attributed
to
the
site.
In
order
to
document
a
significant
increase
above
background
levels,
the
hazardous
substances
must
be
present
in
concentrations
of
at
least
three
times
(3x)
above
the
appropriate
background
level
if
the
hazardous
substances
are
present
in
the
background
sample.
Or,
if
the
hazardous
substances
have
not
been
detected
in
the
background
samples,
then
the
hazardous
substances
must
be
present
at
concentrations
both
above
the
release's
and
the
highest
background
samples'
laboratory
Sample
Quantitation
Limit
(SQL)
(Ref.
1,
Section
2.3).

Background
Concentrations
A
total
of
eight
(8)
background
samples
were
collected
at
up­
channel
locations
along
the
HSC,
along
Patrick
Bayou
and
the
East
Fork
Tributary
upstream
from
known
outfall
locations
for
identification
of
site
contaminants
(Ref.
7,
pp.
12,
18­
19,
21,
23).
Table
4
provides
a
summary
of
the
background
samples
collected
for
the
SSI
and
Table
5
indicates
the
highest
designated
background
levels
for
the
inorganic
and
organic
hazardous
substances
of
concern
for
the
site.
A
variety
of
background
locations
were
selected
to
adequately
represent
differing
surface
conditions
and
flow
characteristics
encountered
at
the
site.
These
conditions
included
varying
types
of
flow
channels,
sediment
conditions
and
a
wide
range
of
surface
water
flow
characteristics
found
within
the
East
Fork
Tributary,
upper
drainage
area
of
Patrick
Bayou
and
along
the
Houston
Ship
Channel.
Another
bayou
was
not
selected
for
unaffected
background
sediment
samples
since
previous
studies
conducted
by
the
City
of
Houston
within
the
HSC
system
indicated
elevated
toxic
substances
and
water
quality
problems
within
all
nine
tributaries
(Ref.
4,
p.
1).

Background
samples
SE­
01,
SE­
02
and
SE­
03
were
selected
to
represent
typical
sediment
locations
identified
within
the
Patrick
Bayou­
HSC
confluence
area
with
similar
large
tributary
flow
characteristics.
Background
samples
were
collected
using
a
sediment
coring
sampling
tool
along
the
shoreline
of
the
Houston
Ship
Channel
in
shallow
areas
where
sediments
would
collect
up­
channel
of
the
confluence
with
Patrick
Bayou.
SE­
01
was
a
composite
sample
so
that
there
would
be
sufficient
volume
for
a
requested
split
sample.
The
coring
sampling
tool
was
pushed
as
far
as
it
could
be
pushed
into
the
sediments
to
collect
each
sample
(Ref.
10,
pp.
13­
15).
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
21
TABLE
4
Surface
Water
Pathway
Background
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
CLP
Sample
ID
Sample
Location/
Event
Sample
Depth
Date
Collected
Location
Reference
MFHW65
FGW45
SE­
01/
HSC
sample
HSC
up­
channel
from
Patrick
Bayou
Composite
0"­
18"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
13
Photo
#6
MFHW66
FGW46
SE­
02/
HSC
sample
HSC
up­
channel
from
Patrick
Bayou
Grab
sample
0"­
20"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
14
Photo
#7
MFHW67
FGW47
SE­
03/
HSC
sample
HSC
up­
channel
from
Patrick
Bayou
Grab
sample
0"­
18"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
15
Photo
#8
MFHW74
FGW54
SE­
10/
East
Fork
sample
Upstream
from
Praxair
outfall
entry
to
tributary
Grab
sample
0"­
8"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
22
Photo
#49
MFHW75
FGW55
SE­
11/
East
Fork
sample
Upstream
from
Praxair
outfall
entry
to
tributary
Grab
sample
0"­
8"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
23
Photo
#48
MFHW76
FGW56
SE­
12/
East
Fork
sample
Upstream
from
Praxair
outfall
entry
to
tributary
Grab
sample
0"­
10"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
24
Photo
#47
MFHW79
FGW59
SE­
15/
Patrick
Bayou
Upstream
from
Deer
Park
wastewater
discharge
point
Composite
0"­
4"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
9,
11,
27
Photo
#27
MFHW80
FGW60
SE­
16/
Patrick
Bayou
Duplicate
sample
of
SE­
15
for
QA/
QC
requirements.
Same
as
SE­
15
3/
30/
00
Figure
3
Ref.
10,
pp.
9,
11,
28
Photos
#27
Notes:
QA/
QC
=
Quality
Assurance/
Quality
Control
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
22
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
Background
sample
locations
SE­
10,
SE­
11
and
SE­
12
were
selected
along
the
upper
portions
of
the
East
Fork
Tributary
upstream
of
any
known
outfall
source
in
shallow
intermittent
low­
flow
locations
typical
of
sediment
locations
noted
located
below
outfall
sources
within
the
East
Fork
Tributary.
Since
the
shallow
stream
channel
contained
many
small
rocks
and
gravel
and
the
underlying
soils
Background
sample
location
SE­
15
with
duplicate
sample
SE­
16
was
selected
within
the
concrete­
lined
upper
portion
of
Patrick
Bayou
upstream
of
any
know
outfall
source
to
represent
typical
gunite­
lined
lower
portions
of
the
bayou
located
between
sampling
Stations
No.
9
and
No.
6
illustrated
in
Figure
3
and
shown
in
Photo
#29.
Background
sediment
samples
SE­
15
and
SE­
16
were
collected
using
a
dedicated
stainless
steel
bowl
and
spoon
since
the
channel
was
concrete
lined
and
using
the
coring
sampling
tool
was
determined
unsuitable.
A
composite
sample
was
collected
from
deposits
up
to
4"
thick
of
fine
sediments
lying
within
typical
low­
flow
portions
of
the
channel
within
an
approximate
20'
radius
to
obtain
sufficient
volume
for
the
duplicate
sample.
Leaves,
twigs
and
other
organic
matter
were
removed
before
collecting
the
sample
(Ref.
10,
pp.
27­
28).

TABLE
5
Surface
Water
Pathway
Summary
of
Highest
Inorganic
and
Organic
Constituents
Detected
in
Background
Sediment
Samples
Inorganic
Constituent
and
Cyanide
Station
ID/
CLP
No.
Highest
Concentration
[SQL]
mg/
Kg
3
x
Highest
Background
Concentration
mg/
Kg
Reference
Cadmium
SE16
MFHW80
0.63
[1.3]
1.89
Ref.
12,
pp.
1­
7,
10­
13,
17
Chromium
SE16
MFHW80
12.4
[2.6]
37.2
Ref.
12,
pp.
1­
7,
10­
13,
17
Copper
SE16
MFHW80
17.7
[6.5]
53.1
Ref.
12,
pp.
1­
7,
10­
13,
17
Lead
SE15
MFHW79
38.6
[0.9]
115.8
Ref.
12,
pp.
1­
7,
10­
13,
16
Manganese
SE16
MFHW80
207
[3.9]
621
Ref.
12,
pp.
1­
7,
10­
13,
17
Mercury
SE01
MFHW65
0.56J*
[0.12]
1.68*
Ref.
12,
pp.
1­
7,
12­
15,
26
Nickel
SE11
MFHW75
11.5
[10.3]
34.5
Ref.
13,
pp.
1­
7,
12­
15,
26
Silver
SE12
MFHW76
ND
[0.33]
N/
A
[0.33]
Ref.
13,
pp.
1­
7,
12­
15,
27
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
23
Surface
Water
Pathway
Summary
of
Highest
Inorganic
and
Organic
Constituents
Detected
in
Background
Sediment
Samples
Inorganic
Constituent
and
Cyanide
Station
ID/
CLP
No.
Highest
Concentration
[SQL]
mg/
Kg
3
x
Highest
Background
Concentration
mg/
Kg
Reference
Vanadium
SE16
MFHW80
27.7
[13.1]
83.1
Ref.
12,
pp.
1­
7,
10­
13,
17
Zinc
SE16
MFHW80
99.0
[5.2]
297
Ref.
12,
pp.
1­
7,
10­
13,
17
Cyanide
SE15
MFHW79
0.3Jv
[1.45]
0.9
Ref.
12,
pp.
1­
7,
10­
13,
16
Carbon
Disulfide
SE­
15/
FGW59
NDMJ
[35]
N/
A
[35]
Ref.
14,
pp.
1­
13,
26­
34,
41­
43
Cyclohexane
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
Benzene
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
Methylcyclohexane
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
Toluene
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
Chlorobenzene
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
Ethylbenzene
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
Xylenes
(total)
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
Isopropylbenzene
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
1,3­
Dichlorobenzene
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
1,4­
Dichlorobenzene
SE­
12/
FGW56
ND
[19]
N/
A
[19]
Ref.
15,
pp.
1­
9,
23­
30,
73­
75
exachlorobutadiene
SE­
12/
FGW56
ND
[610]
N/
A
[610]
Ref.
15,
pp.
1­
9,
23­
30,
120­
124
2­
Methylnaphthalene
SE­
12/
FGW56
ND
[610]
N/
A
[610]
Ref.
15,
pp.
1­
9,
23­
30,
120­
124
Hexachlorobenzene
SE­
12/
FGW56
ND
[610]
N/
A
[610]
Ref.
15,
pp.
1­
9,
23­
30,
120­
124
Aldrin
SE­
12/
FGW56
NDJv
[3.1]
N/
A
[3.1]
Ref.
15,
pp.
1­
9,
23­
30,
157
Endosulfan
I
SE­
12/
FGW56
NDJv
[3.1]
N/
A
[3.1]
Ref.
15,
pp.
1­
9,
23­
30,
157
Endrin
SE­
12/
FGW56
ND
[6.1]
N/
A
[6.1]
Ref.
15,
pp.
1­
9,
23­
30,
157
Aroclor
1248
SE­
12/
FGW56
ND
[61]
N/
A
[61]
Ref.
15,
pp.
1­
9,
23­
30,
157
Aroclor
1254
SE­
12/
FGW56
ND
[61]
N/
A
[61]
Ref.
15,
pp.
1­
9,
23­
30,
157
Aroclor
1260
SE­
12/
FGW56
ND
[61]
N/
A
[61]
Ref.
15,
pp.
1­
9,
23­
30,
157
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
source.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.

M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N/
A
=
Not
applicable.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
24
A
complete
listing
of
all
background
values
is
included
as
Reference
20.

All
samples
were
collected
according
to
the
EPA
approved
state
Quality
Assurance
Project
Plan
and
sample
locations
were
approved
by
the
EPA
prior
to
sample
collection
(Ref.
8,
pp.
1­
52;
Ref.
7,
pp.
1­
27).

Contaminated
Samples
The
following
samples
meet
the
observed
release
criteria
and
are
presented
below
indicating
inorganic
and
organic
hazardous
substances
with
their
concentrations
and
SQLs.

The
following
samples
were
qualified
as
"releases"
based
on
the
criteria
outlined
in
the
HRS
Rule,
Section
2.3
and
Table
2­
3
(Ref.
1).

TABLE
6
Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
CLP
Sample
ID
Sample
Location/
Event
Sample
Depth
Date
Collected
Location
Reference
MFHW68
FGW48
SE­
04/
HSC
sample
Confluence
of
HSC
and
Patrick
Bayou
Grab
Sample
0"­
18"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
16
Photos
#13,
14
MFHW69
FGW49
SE­
05/
HSC
sample
Confluence
of
HSC
and
Patrick
Bayou
Composite
0"­
20"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
17
Photo
#15
MFHW70
FGW50
SE­
06/
HSC
sample
Duplicate
sample
of
SE­
05
for
QA/
QC
requirements.
Same
as
SE­
05
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
18
Photo
#16
MFHW71
FGW51
SE­
07/
HSC
sample
Down­
channel
sample
300'
west
of
OxyVinyl
outfall
Grab
sample
0"­
16"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
19
Photos
#9,
10
MFHW72
FGW52
SE­
08/
HSC
sample
Down­
channel
sample
300'
W.
of
OxyVinyl
outfall
Composite
0"­
18"
deep
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
20
Photo
#12
Table
6
continued
...

SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
25
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
CLP
Sample
ID
Sample
ID
No./
Location
Sample/
Depth
Date
Collected
Location
Reference
MFHW73
FGW53
SE­
09/
HSC
sample
Duplicate
sample
of
SE­
08
for
QA/
QC
requirements.
Same
as
SE­
08
3/
28/
00
Figure
3,
Ref.
10,
pp.
9,
11,
21
Photo
#12
MFHW78
FGW58
SE­
14/
East
Fork
Tributary
Near
the
confluence
of
East
Fork
with
Patrick
Bayou
Composite
0"­
14"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
9,
11,
26
Photos
#33,
34
MFHW81
FGW61
SE­
17/
Patrick
Bayou
40
meters
downstream
from
Lubrizol/
Deer
Park
Outfall
Composite
0"­
6"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
9,
11,
29
Photo
#30
MFHW82
FGW62
SE­
18/
Patrick
Bayou
20
meters
downstream
from
Shell
Road
Bridge/
west
bank
Composite
0"­
8"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
30
Photo
#32
MFHW83
FGW63
SE­
19/
Patrick
Bayou
approx.
800'
north
of
confluence
with
East
Fork
Composite
0"­
18"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
31
Photos
#39,
40
MFHW84
FGW64
SE­
20/
Patrick
Bayou
60
meters
N.
Oxyvinyl
#001
24
meters
from
E.
shoreline
Composite
0"­
20"
deep
3/
29/
00
Figure
3
Ref.
10,
pp.
10,
11,
32
Photo
#17
MFHW85
FGW65
SE­
21/
Patrick
Bayou
Duplicate
sample
of
SE­
20
for
QA/
QC
requirements.
Same
as
SE­
20.
3/
29/
00
Figure
3
Ref.
10,
pp.
10,
11,
33
Photo
#18
MFHW86
FGW66
SE­
22/
Patrick
Bayou
45
meters
S.
Oxyvinyl
#003
21
meters
from
E.
shoreline
Composite
0"­
18"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
34
Photo
#25
MFHW87
FGW68
SE­
23/
Wetland
sample
700'
north
of
East
Fork
Along
edge
of
east
bank
Composite
0"­
20"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
35
Photo
#37,
38
MFHW88
FGW68
SE­
24/
Patrick
Bayou
83
meters
south
of
island
17
meters
from
E.
shoreline
Composite
0"­
16"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
36
Photo
#21,
22
Table
6
continued
...
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
26
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
CLP
Sample
ID
Sample
ID
No./
Location
Sample/
Depth
Date
Collected
Location
Reference
MFHW89
FGW69
SE­
25/
Wetland
sample
approx.
60'
N.
of
SE­
14
Along
edge
of
east
bank
Composite
0"­
22"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
37
Photo
#35,
36
MFHW90
FGW70
SE­
26/
Patrick
Bayou
approx.
200'
E.
of
bridge
in
lower
bayou
area
Grab
Sample
0"­
18"
deep
3/
28/
00
Figure
3
Ref.
10,
pp.
10,
11,
38
Photo
#26
(not
avail)

MFHW91
FGW71
SE­
27/
Wetland
sample
Along
NE
shoreline
of
island
in
Patrick
Bayou
Composite
0"­
15"
deep
3/
30/
00
Figure
3
Ref.
10,
pp.
10,
11,
39
Photo
#19
Table
6
continued
...
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
27
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
04
MFHW68
Inorganics
Cadmium
0.93L
mg/
Kg
[1.9]
Ref.
13,
pp.
1­
7,
12­
15,
19
Chromium
183
mg/
Kg
[3.8]
Ref.
13,
pp.
1­
7,
12­
15,
19
Copper
99.3
mg/
Kg
[9.7]
Ref.
13,
pp.
1­
7,
12­
15,
19
Lead
117
mg/
Kg
[1.2]
Ref.
13,
pp.
1­
7,
12­
15,
19
Manganese
172
mg/
Kg
[5.8]
Ref.
13,
pp.
1­
7,
12­
15,
19
Mercury
11.31*
mg/
Kg
[0.19]
Ref.
13,
pp.
1­
7,
12­
15,
19
Nickel
51.2
mg/
Kg
[15.5]
Ref.
13,
pp.
1­
7,
12­
15,
19
Silver
ND
[3.8]
Ref.
13,
pp.
1­
7,
12­
15,
19
Vanadium
11.9L
mg/
Kg
[19.4]
Ref.
13,
pp.
1­
7,
12­
15,
19
Zinc
334
mg/
Kg
[7.8]
Ref.
13,
pp.
1­
7,
12­
15,
19
Cyanide
ND
[1.9]
Ref.
13,
pp.
1­
7,
12­
15,
19
SE­
04
FGW48
Volatiles
Carbon
Disulfide
59B
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
43
Cyclohexane
ND
[20]
Ref.
15,
pp.
1­
9,
23­
30,
43
Benzene
170
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
43
Methylcyclohexane
110
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
43
Toluene
75
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
43
Chlorobenzene
220
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
44
Ethylbenzene
52
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
44
Xylenes
(total)
310
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
44
Isopropylbenzene
290
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
44
1,3­
Dichlorobenzene
1,900
µg/
Kg
[100]
Ref.
15,
pp.
1­
9,
23­
30,
44
1,4­
Dichlorobenzene
260
µg/
Kg
[20]
Ref.
15,
pp.
1­
9,
23­
30,
44
Table
6
continued
...
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
28
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
04
FGW48
Semivolatiles
Hexachlorobutadiene
19,000
µg/
Kg
[16,000]
Ref.
15,
pp.
1­
9,
23­
30,
100
2­
Methylnaphthalene
2,800LJ
µg/
Kg
[16,000]
Ref.
15,
pp.
1­
9,
23­
30,
100
Hexachlorobenzene
3,900J
µg/
Kg
[16,000]
Ref.
15,
pp.
1­
9,
23­
30,
101
SE­
04
FGW48
Pesticides/
PCBs
Aldrin
NDMJ
[240]
Ref.
15,
pp.
1­
9,
23­
30,
145
Endrin
9.2J*
µg/
Kg
[66]
Ref.
15,
pp.
1­
9,
23­
30,
145
Aroclor­
1248
5,200
µg/
Kg
[66]
Ref.
15,
pp.
1­
9,
23­
30,
145
Aroclor­
1254
ND
[660]
Ref.
15,
pp.
1­
9,
23­
30,
145
Aroclor­
1260
ND
[660]
Ref.
15,
pp.
1­
9,
23­
30,
145
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
29
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
05
MFHW69
Inorganics
Cadmium
1.5L
mg/
Kg
[2.0]
Ref.
13,
pp.
1­
7,
12­
15,
20
Chromium
158
mg/
Kg
[4.0]
Ref.
13,
pp.
1­
7,
12­
15,
20
Copper
69.7
mg/
Kg
[10.4]
Ref.
13,
pp.
1­
7,
12­
15,
20
Lead
85.9
mg/
Kg
[1.2]
Ref.
13,
pp.
1­
7,
12­
15,
20
Manganese
166
mg/
Kg
[6.2]
Ref.
13,
pp.
1­
7,
12­
15,
20
Mercury
6.61J*
mg/
Kg
[0.2]
Ref.
13,
pp.
1­
7,
12­
15,
20
Nickel
38.3
mg/
Kg
[16.6]
Ref.
13,
pp.
1­
7,
12­
15,
20
Silver
ND
[4.0]
Ref.
13,
pp.
1­
7,
12­
15,
20
Vanadium
11.1L
mg/
Kg
[20.8]
Ref.
13,
pp.
1­
7,
12­
15,
20
Zinc
307
mg/
Kg
[8.3]
Ref.
13,
pp.
1­
7,
12­
15,
20
Cyanide
ND
[2.1]
Ref.
13,
pp.
1­
7,
12­
15,
20
SE­
05
FGW49
Volatiles
Carbon
Disulfide
NDM
[250]
Ref.
15,
pp.
1­
9,
23­
30,
49
Cyclohexane
ND
[110]
Ref.
15,
pp.
1­
9,
23­
30,
49
Benzene
68Jv
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
49
Methylcyclohexane
98Jv
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
49
Toluene
21Jv
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
49
Chlorobenzene
200Jv
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
50
Ethylbenzene
30Jv
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
50
Xylenes
(total)
110Jv
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
50
Isopropylbenzene
180Jv
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
50
1,3­
Dichlorobenzene
1,300
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
50
1,4­
Dichlorobenzene
320Jv
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
50
SE­
05
FGW49
Semivolatiles
Hexachlorobutadiene
19,000
µg/
Kg
[15,000]
Ref.
15,
pp.
1­
9,
23­
30,
103
2­
Methylnaphthalene
1,600LJ
µg/
Kg
[15,000]
Ref.
15,
pp.
1­
9,
23­
30,
103
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
30
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
05
FGW49
Semivolatiles
Hexachlorobenzene
4,800J
µg/
Kg
[15,000]
Ref.
15,
pp.
1­
9,
23­
30,
104
SE­
05
FGW49
Pesticides/
PCBs
Aldrin
NDM
[210]
Ref.
15,
pp.
1­
9,
23­
30,
147
Endosulfan
I
3.3J
µg/
Kg
[3.9]
Ref.
15,
pp.
1­
9,
23­
30,
147
Endrin
ND
[75]
Ref.
15,
pp.
1­
9,
23­
30,
147
Aroclor­
1248
4,500
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
147
Aroclor­
1254
ND
[750]
Ref.
15,
pp.
1­
9,
23­
30,
147
Aroclor­
1260
180J*
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
147
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
31
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
06
MFHW70
Inorganics
Cadmium
0.96L
mg/
Kg
[2.2]
Ref.
13,
pp.
1­
7,
12­
15,
21
Chromium
164
mg/
Kg
[4.4]
Ref.
13,
pp.
1­
7,
12­
15,
21
Copper
86.2
mg/
Kg
[10.8]
Ref.
13,
pp.
1­
7,
12­
15,
21
Lead
95.6
mg/
Kg
[1.3]
Ref.
13,
pp.
1­
7,
12­
15,
21
Manganese
160
mg/
Kg
[6.5]
Ref.
13,
pp.
1­
7,
12­
15,
21
Mercury
22.68J*
mg/
Kg
[0.22]
Ref.
13,
pp.
1­
7,
12­
15,
21
Nickel
43.6
mg/
Kg
[17.3]
Ref.
13,
pp.
1­
7,
12­
15,
21
Silver
ND
[4.4]
Ref.
13,
pp.
1­
7,
12­
15,
21
Vanadium
13.7L
mg/
Kg
[21.6]
Ref.
13,
pp.
1­
7,
12­
15,
21
Zinc
322
mg/
Kg
[8.7]
Ref.
13,
pp.
1­
7,
12­
15,
21
Cyanide
ND
[2.2]
Ref.
13,
pp.
1­
7,
12­
15,
21
SE­
06
FGW50
Volatiles
Carbon
Disulfide
NDMJ
[180]
Ref.
15,
pp.
1­
9,
23­
30,
52
Cyclohexane
ND
[100]
Ref.
15,
pp.
1­
9,
23­
30,
52
Benzene
147.2J^*
µg/
Kg
[100]
Ref.
15,
pp.
1­
9,
23­
30,
52
Methylcyclohexane
340J^
µg/
Kg
[100]
Ref.
15,
pp.
1­
9,
23­
30,
52
Toluene
92J^*
µg/
Kg
[100]
Ref.
15,
pp.
1­
9,
23­
30,
52
Chlorobenzene
335J^*
µg/
Kg
[100]
Ref.
15,
pp.
1­
9,
23­
30,
53
Ethylbenzene
15J^*
µg/
Kg
[100]
Ref.
15,
pp.
1­
9,
23­
30,
53
Xylenes
(total)
78J^*
µg/
Kg
[100]
Ref.
15,
pp.
1­
9,
23­
30,
53
Isopropylbenzene
680J^
µg/
Kg
[100]
Ref.
15,
pp.
1­
9,
23­
30,
53
1,3­
Dichlorobenzene
1,700
µg/
Kg
[1,000]
Ref.
15,
pp.
1­
9,
23­
30,
53
1,4­
Dichlorobenzene
820J^
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
53
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
32
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
06
FGW50
Semivolatiles
Hexachlorobutadiene
21,000
µg/
Kg
[14,000]
Ref.
15,
pp.
1­
9,
23­
30,
106
2­
Methylnaphthalene
1,800J
µg/
Kg
[14,000]
Ref.
15,
pp.
1­
9,
23­
30,
106
Hexachlorobenzene
4,800J
µg/
Kg
[14,000]
Ref.
15,
pp.
1­
9,
23­
30,
107
SE­
06
FGW50
Pesticides/
PCBs
Aldrin
NDMJ
[170]
Ref.
15,
pp.
1­
9,
23­
30,
149­
50
Endosulfan
I
ND
[35]
Ref.
15,
pp.
1­
9,
23­
30,
149­
50
Endrin
ND
[69]
Ref.
15,
pp.
1­
9,
23­
30,
149­
50
Aroclor­
1248
380J*
µg/
Kg
[69]
Ref.
15,
pp.
1­
9,
23­
30,
149­
50
Aroclor­
1254
ND
[690]
Ref.
15,
pp.
1­
9,
23­
30,
149­
50
Aroclor­
1260
210J*
µg/
Kg
[69]
Ref.
15,
pp.
1­
9,
23­
30,
149­
50
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
33
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
07
MFHW71
Inorganics
Cadmium
0.43L
mg/
Kg
[1.4]
Ref.
13,
pp.
1­
7,
12­
15,
22
Chromium
48.8
mg/
Kg
[2.8]
Ref.
13,
pp.
1­
7,
12­
15,
22
Copper
25.2
mg/
Kg
[7.0]
Ref.
13,
pp.
1­
7,
12­
15,
22
Lead
47.1
mg/
Kg
[0.84]
Ref.
13,
pp.
1­
7,
12­
15,
22
Manganese
92.6
mg/
Kg
[4.2]
Ref.
13,
pp.
1­
7,
12­
15,
22
Mercury
1.42J*
mg/
Kg
[0.14]
Ref.
13,
pp.
1­
7,
12­
15,
22
Nickel
29.2
mg/
Kg
[11.2]
Ref.
13,
pp.
1­
7,
12­
15,
22
Silver
ND
[2.8]
Ref.
13,
pp.
1­
7,
12­
15,
22
Vanadium
9.7L
mg/
Kg
[14.0]
Ref.
13,
pp.
1­
7,
12­
15,
22
Zinc
123
mg/
Kg
[5.6]
Ref.
13,
pp.
1­
7,
12­
15,
22
Cyanide
1.1
mg/
Kg
[1.4]
Ref.
13,
pp.
1­
7,
12­
15,
22
SE­
07
FGW51
Volatiles
Carbon
Disulfide
NDMJ
[80]
Ref.
15,
pp.
1­
9,
23­
30,
58
Cyclohexane
ND
[72]
Ref.
15,
pp.
1­
9,
23­
30,
58
Benzene
150
µg/
Kg
[72]
Ref.
15,
pp.
1­
9,
23­
30,
58
Methylcyclohexane
9J
µg/
Kg
[72]
Ref.
15,
pp.
1­
9,
23­
30,
58
Toluene
22J
µg/
Kg
[72]
Ref.
15,
pp.
1­
9,
23­
30,
58
Chlorobenzene
550J^*
µg/
Kg
[720]
Ref.
15,
pp.
1­
9,
23­
30,
59
Ethylbenzene
7J
µg/
Kg
[72]
Ref.
15,
pp.
1­
9,
23­
30,
59
Xylenes
(total)
34J
µg/
Kg
[72]
Ref.
15,
pp.
1­
9,
23­
30,
59
Isopropylbenzene
16J
µg/
Kg
[72]
Ref.
15,
pp.
1­
9,
23­
30,
59
1,3­
Dichlorobenzene
1,700
µg/
Kg
[720]
Ref.
15,
pp.
1­
9,
23­
30,
59
1,4­
Dichlorobenzene
1,400
µg/
Kg
[72]
Ref.
15,
pp.
1­
9,
23­
30,
59
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
34
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
07
FGW51
Semivolatiles
Hexachlorobutadiene
71,000
µg/
Kg
[19,000]
Ref.
15,
pp.
1­
9,
23­
30,
109
2­
Methylnaphthalene
450LJ
µg/
Kg
[1,900]
Ref.
15,
pp.
1­
9,
23­
30,
109
Hexachlorobenzene
40,000
µg/
Kg
[19,000]
Ref.
15,
pp.
1­
9,
23­
30,
110
SE­
07
FGW51
Pesticides/
PCBs
Aldrin
ND
[2.5]
Ref.
15,
pp.
1­
9,
23­
30,
151
Endosulfan
I
ND
[2.5]
Ref.
15,
pp.
1­
9,
23­
30,
151
Endrin
ND
[4.8]
Ref.
15,
pp.
1­
9,
23­
30,
151
Aroclor­
1248
ND
[48]
Ref.
15,
pp.
1­
9,
23­
30,
151
Aroclor­
1254
32J*
µg/
Kg
[48]
Ref.
15,
pp.
1­
9,
23­
30,
151
Aroclor­
1260
ND
[48]
Ref.
15,
pp.
1­
9,
23­
30,
151
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
35
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
08
MFHW72
Inorganics
Cadmium
0.50L
mg/
Kg
[1.5]
Ref.
13,
pp.
1­
7,
12­
15,
23
Chromium
56.5
mg/
Kg
[3.0]
Ref.
13,
pp.
1­
7,
12­
15,
23
Copper
30.7
mg/
Kg
[7.5]
Ref.
13,
pp.
1­
7,
12­
15,
23
Lead
54.3
mg/
Kg
[0.9]
Ref.
13,
pp.
1­
7,
12­
15,
23
Manganese
107
mg/
Kg
[4.5]
Ref.
13,
pp.
1­
7,
12­
15,
23
Mercury
1.58J*
mg/
Kg
[0.15]
Ref.
13,
pp.
1­
7,
12­
15,
23
Nickel
31.7
mg/
Kg
[12.0]
Ref.
13,
pp.
1­
7,
12­
15,
23
Silver
ND
[3.0]
Ref.
13,
pp.
1­
7,
12­
15,
23
Vanadium
11.5L
mg/
Kg
[15.0]
Ref.
13,
pp.
1­
7,
12­
15,
23
Zinc
159
mg/
Kg
[6.0]
Ref.
13,
pp.
1­
7,
12­
15,
23
Cyanide
ND
[1.5]
Ref.
13,
pp.
1­
7,
12­
15,
23
SE­
08
FGW52
Volatiles
Carbon
Disulfide
NDMJ
[120]
Ref.
15,
pp.
1­
9,
23­
30,
61
Cyclohexane
ND
[75]
Ref.
15,
pp.
1­
9,
23­
30,
61
Benzene
48J
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
61
Methylcyclohexane
ND
[75]
Ref.
15,
pp.
1­
9,
23­
30,
61
Toluene
14J
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
61
Chlorobenzene
780
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
62
Ethylbenzene
ND
[75]
Ref.
15,
pp.
1­
9,
23­
30,
62
Xylenes
(total)
19J
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
62
Isopropylbenzene
17J
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
62
1,3­
Dichlorobenzene
1,100
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
62
1,4­
Dichlorobenzene
460
µg/
Kg
[75]
Ref.
15,
pp.
1­
9,
23­
30,
62
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
36
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
08
FGW52
Semivolatiles
Hexachlorobutadiene
95,000
µg/
Kg
[25,000]
Ref.
15,
pp.
1­
9,
23­
30,
115
2­
Methylnaphthalene
ND
[25,000]
Ref.
15,
pp.
1­
9,
23­
30,
115
Hexachlorobenzene
38,000
µg/
Kg
[25,000]
Ref.
15,
pp.
1­
9,
23­
30,
116
SE­
08
FGW52
Pesticides/
PCBs
Aldrin
1.12J*
µg/
Kg
[2.5]
Ref.
15,
pp.
1­
9,
23­
30,
152
Endosulfan
I
ND
[2.5]
Ref.
15,
pp.
1­
9,
23­
30,
152
Endrin
ND
[4.9]
Ref.
15,
pp.
1­
9,
23­
30,
152
Aroclor­
1248
ND
[49]
Ref.
15,
pp.
1­
9,
23­
30,
152
Aroclor­
1254
37J*
µg/
Kg
[49]
Ref.
15,
pp.
1­
9,
23­
30,
152
Aroclor­
1260
ND
[49]
Ref.
15,
pp.
1­
9,
23­
30,
152
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
37
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
09
MFHW73
Inorganics
Cadmium
0.37L
mg/
Kg
[1.5]
Ref.
13,
pp.
1­
7,
12­
15,
24
Chromium
42.5
mg/
Kg
[3.0]
Ref.
13,
pp.
1­
7,
12­
15,
24
Copper
26.4
mg/
Kg
[7.7]
Ref.
13,
pp.
1­
7,
12­
15,
24
Lead
28.7
mg/
Kg
[0.92]
Ref.
13,
pp.
1­
7,
12­
15,
24
Manganese
89.2
mg/
Kg
[4.6]
Ref.
13,
pp.
1­
7,
12­
15,
24
Mercury
1.75J*
mg/
Kg
[0.15]
Ref.
13,
pp.
1­
7,
12­
15,
24
Nickel
25.5
mg/
Kg
[12.3]
Ref.
13,
pp.
1­
7,
12­
15,
24
Silver
ND
[3.0]
Ref.
13,
pp.
1­
7,
12­
15,
24
Vanadium
8.1L
mg/
Kg
[15.4]
Ref.
13,
pp.
1­
7,
12­
15,
24
Zinc
116
mg/
Kg
[6.2]
Ref.
13,
pp.
1­
7,
12­
15,
24
Cyanide
1.5
mg/
Kg
[1.5]
Ref.
13,
pp.
1­
7,
12­
15,
24
SE­
09
FGW53
Volatiles
Carbon
Disulfide
NDMJ
[130]
Ref.
15,
pp.
1­
9,
23­
30,
64
Cyclohexane
ND
[78]
Ref.
15,
pp.
1­
9,
23­
30,
64
Benzene
30J
µg/
Kg
[78]
Ref.
15,
pp.
1­
9,
23­
30,
64
Methylcyclohexane
ND
[78]
Ref.
15,
pp.
1­
9,
23­
30,
64
Toluene
11J
µg/
Kg
[78]
Ref.
15,
pp.
1­
9,
23­
30,
64
Chlorobenzene
480
µg/
Kg
[78]
Ref.
15,
pp.
1­
9,
23­
30,
65
Ethylbenzene
ND
[78]
Ref.
15,
pp.
1­
9,
23­
30,
65
Xylenes
(total)
12J
µg/
Kg
[78]
Ref.
15,
pp.
1­
9,
23­
30,
65
Isopropylbenzene
11J
µg/
Kg
[78]
Ref.
15,
pp.
1­
9,
23­
30,
65
1,3­
Dichlorobenzene
770
µg/
Kg
[78]
Ref.
15,
pp.
1­
9,
23­
30,
65
1,4­
Dichlorobenzene
310
µg/
Kg
[78]
Ref.
15,
pp.
1­
9,
23­
30,
65
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
38
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
09
FGW53
Semivolatiles
Hexachlorobutadiene
75,000
µg/
Kg
[26,000]
Ref.
15,
pp.
1­
9,
23­
30,
118
2­
Methylnaphthalene
ND
[26,000]
Ref.
15,
pp.
1­
9,
23­
30,
118
Hexachlorobenzene
32,000
µg/
Kg
[26,000]
Ref.
15,
pp.
1­
9,
23­
30,
119
SE­
09
FGW53
Pesticides/
PCBs
Aldrin
1.12J*
µg/
Kg
[2.7]
Ref.
15,
pp.
1­
9,
23­
30,
153
Endosulfan
I
ND
[2.7]
Ref.
15,
pp.
1­
9,
23­
30,
153
Endrin
ND
[5.2]
Ref.
15,
pp.
1­
9,
23­
30,
153
Aroclor­
1248
ND
[52]
Ref.
15,
pp.
1­
9,
23­
30,
153
Aroclor­
1254
530
µg/
Kg
[52]
Ref.
15,
pp.
1­
9,
23­
30,
153
Aroclor­
1260
ND
[52]
Ref.
15,
pp.
1­
9,
23­
30,
153
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
39
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
14
MFHW78
Inorganics
Cadmium
0.83L
mg/
Kg
[63.7]
Ref.
12,
pp.
1­
7,
10­
13,
15
Chromium
56
mg/
Kg
[3.4]
Ref.
12,
pp.
1­
7,
10­
13,
15
Copper
60.2
mg/
Kg
[8.4]
Ref.
12,
pp.
1­
7,
10­
13,
15
Lead
32.6
mg/
Kg
[1.01]
Ref.
12,
pp.
1­
7,
10­
13,
15
Manganese
223
mg/
Kg
[5.1]
Ref.
12,
pp.
1­
7,
10­
13,
15
Mercury
0.45
mg/
Kg
[0.17]
Ref.
12,
pp.
1­
7,
10­
13,
15
Nickel
20.9
mg/
Kg
[13.5]
Ref.
12,
pp.
1­
7,
10­
13,
15
Silver
ND
[3.4]
Ref.
12,
pp.
1­
7,
10­
13,
15
Vanadium
25.7
mg/
Kg
[16.8]
Ref.
12,
pp.
1­
7,
10­
13,
15
Zinc
174
mg/
Kg
[6.7]
Ref.
12,
pp.
1­
7,
10­
13,
15
Cyanide
0.43LJv
mg/
Kg
[1.7]
Ref.
12,
pp.
1­
7,
10­
13,
15
SE­
14
FGW58
Volatiles
Carbon
Disulfide
NDMJ
[32]
Ref.
14,
pp.
1­
13,
26­
34,
38
Cyclohexane
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
38
Benzene
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
38
Methylcyclohexane
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
38
Toluene
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
38
Chlorobenzene
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
39
Ethylbenzene
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
39
Xylenes
(total)
5LJ
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
39
Isopropylbenzene
19
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
39
1,3­
Dichlorobenzene
3LJ
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
39
1,4­
Dichlorobenzene
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
39
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
40
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
14
FGW58
Semivolatiles
Hexachlorobutadiene
ND
[530]
Ref.
14,
pp.
1­
13,
26­
34,
83
2­
Methylnaphthalene
ND
[530]
Ref.
14,
pp.
1­
13,
26­
34,
83
Hexachlorobenzene
ND
[530]
Ref.
14,
pp.
1­
13,
26­
34,
84
SE­
14
FGW58
Pesticides/
PCBs
Aldrin
NDMJ
[6.5]
Ref.
14,
pp.
1­
13,
26­
34,
129
Endosulfan
I
ND
[2.7]
Ref.
14,
pp.
1­
13,
26­
34,
129
Endrin
1.9LJ
µg/
Kg
[5.3]
Ref.
14,
pp.
1­
13,
26­
34,
129
Aroclor­
1248
16J*
µg/
Kg
[53]
Ref.
14,
pp.
1­
13,
26­
34,
129
Aroclor­
1254
ND
[53]
Ref.
14,
pp.
1­
13,
26­
34,
129
Aroclor­
1260
ND
[53]
Ref.
14,
pp.
1­
13,
26­
34,
129
ND
=
Not
detected.
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
41
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
17
MFHW81
Inorganics
Cadmium
1.1
mg/
Kg
[1.4]
Ref.
12,
pp.
1­
7,
10­
13,
18
Chromium
280
mg/
Kg
[2.8]
Ref.
12,
pp.
1­
7,
10­
13,
18
Copper
31.7
mg/
Kg
[6.9]
Ref.
12,
pp.
1­
7,
10­
13,
18
Lead
34.5
mg/
Kg
[0.8]
Ref.
12,
pp.
1­
7,
10­
13,
18
Manganese
3,500
mg/
Kg
[4.2]
Ref.
12,
pp.
1­
7,
10­
13,
18
Mercury
0.17
mg/
Kg
[0.14]
Ref.
12,
pp.
1­
7,
10­
13,
18
Nickel
14.1
mg/
Kg
[11.1]
Ref.
12,
pp.
1­
7,
10­
13,
18
Silver
ND
[2.8]
Ref.
12,
pp.
1­
7,
10­
13,
18
Vanadium
87.7
mg/
Kg
[13.9]
Ref.
12,
pp.
1­
7,
10­
13,
18
Zinc
225
mg/
Kg
[5.6]
Ref.
12,
pp.
1­
7,
10­
13,
18
Cyanide
0.26LJv
mg/
Kg
[1.4]
Ref.
12,
pp.
1­
7,
10­
13,
18
SE­
17
FGW61
Volatiles
Carbon
Disulfide
NDJ
[15]
Ref.
14,
pp.
1­
13,
26­
34,
47
Cyclohexane
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
47
Benzene
4J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
47
Methylcyclohexane
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
47
Toluene
4J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
47
Chlorobenzene
1J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
48
Ethylbenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
48
Xylenes
(total)
2J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
48
Isopropylbenzene
6J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
48
1,3­
Dichlorobenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
48
1,4­
Dichlorobenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
48
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
42
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
17
FGW61
Semivolatiles
Hexachlorobutadiene
ND
[860]
Ref.
14,
pp.
1­
13,
26­
34,
95
2­
Methylnaphthalene
ND
[860]
Ref.
14,
pp.
1­
13,
26­
34,
95
Hexachlorobenzene
ND
[860]
Ref.
14,
pp.
1­
13,
26­
34,
96
SE­
17
FGW61
Pesticides/
PCBs
Aldrin
ND
[2.2]
Ref.
14,
pp.
1­
13,
26­
34,
132
Endosulfan
I
ND
[2.2]
Ref.
14,
pp.
1­
13,
26­
34,
132
Endrin
ND
[4.3]
Ref.
14,
pp.
1­
13,
26­
34,
132
Aroclor­
1248
ND
[43]
Ref.
14,
pp.
1­
13,
26­
34,
132
Aroclor­
1254
ND
[43]
Ref.
14,
pp.
1­
13,
26­
34,
132
Aroclor­
1260
ND
[43]
Ref.
14,
pp.
1­
13,
26­
34,
132
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
43
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
18
MFHW82
Inorganics
Cadmium
0.44
mg/
Kg
[1.5]
Ref.
12,
pp.
1­
7,
10­
13,
19
Chromium
96.5
mg/
Kg
[2.9]
Ref.
12,
pp.
1­
7,
10­
13,
19
Copper
23.7
mg/
Kg
[7.3]
Ref.
12,
pp.
1­
7,
10­
13,
19
Lead
33.4
mg/
Kg
[0.9]
Ref.
12,
pp.
1­
7,
10­
13,
19
Manganese
411
mg/
Kg
[4.4]
Ref.
12,
pp.
1­
7,
10­
13,
19
Mercury
0.47
mg/
Kg
[0.14]
Ref.
12,
pp.
1­
7,
10­
13,
19
Nickel
18.3
mg/
Kg
[11.7]
Ref.
12,
pp.
1­
7,
10­
13,
19
Silver
ND
[2.9]
Ref.
12,
pp.
1­
7,
10­
13,
19
Vanadium
18.6
mg/
Kg
[14.7]
Ref.
12,
pp.
1­
7,
10­
13,
19
Zinc
201mg/
Kg
[5.9]
Ref.
12,
pp.
1­
7,
10­
13,
19
Cyanide
NDJv
[1.5]
Ref.
12,
pp.
1­
7,
10­
13,
19
SE­
18
FGW62
Volatiles
Carbon
Disulfide
7.4J*
µg/
Kg
[74]
Ref.
14,
pp.
1­
13,
26­
34,
50
Cyclohexane
ND
[74]
Ref.
14,
pp.
1­
13,
26­
34,
50
Benzene
55J
µg/
Kg
[74]
Ref.
14,
pp.
1­
13,
26­
34,
50
Methylcyclohexane
80
µg/
Kg
[74]
Ref.
14,
pp.
1­
13,
26­
34,
50
Toluene
ND
[74]
Ref.
14,
pp.
1­
13,
26­
34,
50
Chlorobenzene
ND
[74]
Ref.
14,
pp.
1­
13,
26­
34,
51
Ethylbenzene
10J
µg/
Kg
[74]
Ref.
14,
pp.
1­
13,
26­
34,
51
Xylenes
(total)
44J
µg/
Kg
[74]
Ref.
14,
pp.
1­
13,
26­
34,
51
Isopropylbenzene
2,200
µg/
Kg
[74]
Ref.
14,
pp.
1­
13,
26­
34,
51
1,3­
Dichlorobenzene
ND
[74]
Ref.
14,
pp.
1­
13,
26­
34,
51
1,4­
Dichlorobenzene
ND
[74]
Ref.
14,
pp.
1­
13,
26­
34,
51
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
44
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
18
FGW62
Semivolatiles
Hexachlorobutadiene
ND
[970]
Ref.
14,
pp.
1­
13,
26­
34,
98
2­
Methylnaphthalene
390J
µg/
Kg
[970]
Ref.
14,
pp.
1­
13,
26­
34,
98
Hexachlorobenzene
ND
[970]
Ref.
14,
pp.
1­
13,
26­
34,
99
SE­
18
FGW62
Pesticides/
PCBs
Aldrin
NDMJ
[260]
Ref.
14,
pp.
1­
13,
26­
34,
133
Endosulfan
I
2.7J*
µg/
Kg
[2.5]
Ref.
14,
pp.
1­
13,
26­
34,
133
Endrin
48
µg/
Kg
[4.9]
Ref.
14,
pp.
1­
13,
26­
34,
133
Aroclor­
1248
330J*
µg/
Kg
[49]
Ref.
14,
pp.
1­
13,
26­
34,
133
Aroclor­
1254
ND
[49]
Ref.
14,
pp.
1­
13,
26­
34,
133
Aroclor­
1260
29J*
µg/
Kg
[49]
Ref.
14,
pp.
1­
13,
26­
34,
133
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
45
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
19
MFHW83
Inorganics
Cadmium
0.64
mg/
Kg
[1.8]
Ref.
12,
pp.
1­
7,
10­
13,
20
Chromium
78.5
mg/
Kg
[3.6]
Ref.
12,
pp.
1­
7,
10­
13,
20
Copper
43.7
mg/
Kg
[8.9]
Ref.
12,
pp.
1­
7,
10­
13,
20
Lead
37.3
mg/
Kg
[1.1]
Ref.
12,
pp.
1­
7,
10­
13,
20
Manganese
162
mg/
Kg
[5.3]
Ref.
12,
pp.
1­
7,
10­
13,
20
Mercury
0.59
mg/
Kg
[0.18]
Ref.
12,
pp.
1­
7,
10­
13,
20
Nickel
20.4
mg/
Kg
[14.2]
Ref.
12,
pp.
1­
7,
10­
13,
20
Silver
0.73
mg/
Kg
[3.6]
Ref.
12,
pp.
1­
7,
10­
13,
20
Vanadium
17.3
mg/
Kg
[17.8]
Ref.
12,
pp.
1­
7,
10­
13,
20
Zinc
269
mg/
Kg
[7.1]
Ref.
12,
pp.
1­
7,
10­
13,
20
Cyanide
0.75LJv
mg/
Kg
[1.8]
Ref.
12,
pp.
1­
7,
10­
13,
20
SE­
19
FGW63
Volatiles
Carbon
Disulfide
NDJ
[58]
Ref.
14,
pp.
1­
13,
26­
34,
56
Cyclohexane
4J
µg/
Kg
[17]
Ref.
14,
pp.
1­
13,
26­
34,
56
Benzene
7J
µg/
Kg
[17]
Ref.
14,
pp.
1­
13,
26­
34,
56
Methylcyclohexane
6J
µg/
Kg
[17]
Ref.
14,
pp.
1­
13,
26­
34,
56
Toluene
ND
[17]
Ref.
14,
pp.
1­
13,
26­
34,
56
Chlorobenzene
ND
[17]
Ref.
14,
pp.
1­
13,
26­
34,
57
Ethylbenzene
ND
[17]
Ref.
14,
pp.
1­
13,
26­
34,
57
Xylenes
(total)
48
µg/
Kg
[17]
Ref.
14,
pp.
1­
13,
26­
34,
57
Isopropylbenzene
100
µg/
Kg
[17]
Ref.
14,
pp.
1­
13,
26­
34,
57
1,3­
Dichlorobenzene
3J
µg/
Kg
[17]
Ref.
14,
pp.
1­
13,
26­
34,
57
1,4­
Dichlorobenzene
ND
[17]
Ref.
14,
pp.
1­
13,
26­
34,
57
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
46
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
19
FGW63
Semivolatiles
Hexachlorobutadiene
ND
[11,000]
Ref.
14,
pp.
1­
13,
26­
34,
101
2­
Methylnaphthalene
28,000
µg/
Kg
[11,000]
Ref.
14,
pp.
1­
13,
26­
34,
101
Hexachlorobenzene
NDJv
[11,000]
Ref.
14,
pp.
1­
13,
26­
34,
102
SE­
19
FGW63
Pesticides/
PCBs
Aldrin
NDM
[290]
Ref.
14,
pp.
1­
13,
26­
34,
135
Endosulfan
I
0.99J*
µg/
Kg
[2.9]
Ref.
14,
pp.
1­
13,
26­
34,
135
Endrin
1.8J*
µg/
Kg
[5.6]
Ref.
14,
pp.
1­
13,
26­
34,
135
Aroclor­
1248
460J*
µg/
Kg
[56]
Ref.
14,
pp.
1­
13,
26­
34,
135
Aroclor­
1254
ND
[56]
Ref.
14,
pp.
1­
13,
26­
34,
135
Aroclor­
1260
250
µg/
Kg
[56]
Ref.
14,
pp.
1­
13,
26­
34,
135
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
47
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
20
MFHW84
Inorganics
Cadmium
1.7
mg/
Kg
[3.5]
Ref.
13,
pp.
1­
7,
12­
15,
29
Chromium
497
mg/
Kg
[6.9]
Ref.
13,
pp.
1­
7,
12­
15,
29
Copper
122
mg/
Kg
[17.2]
Ref.
13,
pp.
1­
7,
12­
15,
29
Lead
101
mg/
Kg
[2.1]
Ref.
13,
pp.
1­
7,
12­
15,
29
Manganese
155
mg/
Kg
[10.3]
Ref.
13,
pp.
1­
7,
12­
15,
29
Mercury
15.74J*
mg/
Kg
[0.34]
Ref.
13,
pp.
1­
7,
12­
15,
29
Nickel
47.4
mg/
Kg
[27.6]
Ref.
13,
pp.
1­
7,
12­
15,
29
Silver
1.7
mg/
Kg
[6.9]
Ref.
13,
pp.
1­
7,
12­
15,
29
Vanadium
23.1
mg/
Kg
[34.5
Ref.
13,
pp.
1­
7,
12­
15,
29
Zinc
818
mg/
Kg
[13.8]
Ref.
13,
pp.
1­
7,
12­
15,
29
Cyanide
ND
[3.5]
Ref.
13,
pp.
1­
7,
12­
15,
29
SE­
20
FGW64
Volatiles
Carbon
Disulfide
420
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
79
Cyclohexane
390J^
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
79
Benzene
182.7J^*
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
79
Methylcyclohexane
540
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
79
Toluene
36.8J^*
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
79
Chlorobenzene
49
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
80
Ethylbenzene
49J^*
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
80
Xylenes
(total)
140J^*
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
80
Isopropylbenzene
2,800
µg/
Kg
[190]
Ref.
15,
pp.
1­
9,
23­
30,
80
1,3­
Dichlorobenzene
320
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
80
1,4­
Dichlorobenzene
85
µg/
Kg
[38]
Ref.
15,
pp.
1­
9,
23­
30,
80
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
48
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
20
FGW64
Semivolatiles
Hexachlorobutadiene
430J
µg/
Kg
[5,100]
Ref.
15,
pp.
1­
9,
23­
30,
133
2­
Methylnaphthalene
880J
µg/
Kg
[5,100]
Ref.
15,
pp.
1­
9,
23­
30,
133
Hexachlorobenzene
270J
µg/
Kg
[5,100]
Ref.
15,
pp.
1­
9,
23­
30,
134
SE­
20
FGW64
Pesticides/
PCBs
Aldrin
230
µg/
Kg
[65]
Ref.
15,
pp.
1­
9,
23­
30,
159
Endosulfan
I
0.78J*
µg/
Kg
[6.5]
Ref.
15,
pp.
1­
9,
23­
30,
159
Endrin
72
µg/
Kg
[13]
Ref.
15,
pp.
1­
9,
23­
30,
159
Aroclor­
1248
4,300
µg/
Kg
[130]
Ref.
15,
pp.
1­
9,
23­
30,
159
Aroclor­
1254
ND
[130]
Ref.
15,
pp.
1­
9,
23­
30,
159
Aroclor­
1260
160J*
µg/
Kg
[130]
Ref.
15,
pp.
1­
9,
23­
30,
159
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
49
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
21
MFHW85
Inorganics
Cadmium
1.4
mg/
Kg
[3.2]
Ref.
13,
pp.
1­
7,
12­
15,
30
Chromium
394
mg/
Kg
[6.4]
Ref.
13,
pp.
1­
7,
12­
15,
30
Copper
99.3
mg/
Kg
[15.9]
Ref.
13,
pp.
1­
7,
12­
15,
30
Lead
84.9
mg/
Kg
[1.9]
Ref.
13,
pp.
1­
7,
12­
15,
30
Manganese
124
mg/
Kg
[9.6]
Ref.
13,
pp.
1­
7,
12­
15,
30
Mercury
7.65J*
mg/
Kg
[0.32]
Ref.
13,
pp.
1­
7,
12­
15,
30
Nickel
41.1
mg/
Kg
[25.5]
Ref.
13,
pp.
1­
7,
12­
15,
30
Silver
1.5
mg/
Kg
[6.4]
Ref.
13,
pp.
1­
7,
12­
15,
30
Vanadium
18.0
mg/
Kg
[31.9]
Ref.
13,
pp.
1­
7,
12­
15,
30
Zinc
673
mg/
Kg
[12.7]
Ref.
13,
pp.
1­
7,
12­
15,
30
Cyanide
ND
[3.5]
Ref.
13,
pp.
1­
7,
12­
15,
30
SE­
21
FGW65
Volatiles
Carbon
Disulfide
ND
[330]
Ref.
15,
pp.
1­
9,
23­
30,
85
Cyclohexane
NDJv
[160]
Ref.
15,
pp.
1­
9,
23­
30,
85
Benzene
90Jv
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
85
Methylcyclohexane
300
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
85
Toluene
19Jv
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
85
Chlorobenzene
24Jv
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
86
Ethylbenzene
53Jv
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
86
Xylenes
(total)
610
Jv
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
86
Isopropylbenzene
1,900
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
86
1,3­
Dichlorobenzene
200
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
86
1,4­
Dichlorobenzene
55J
µg/
Kg
[160]
Ref.
15,
pp.
1­
9,
23­
30,
86
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
50
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
21
FGW65
Semivolatiles
Hexachlorobutadiene
290J
µg/
Kg
[4,400]
Ref.
15,
pp.
1­
9,
23­
30,
136
2­
Methylnaphthalene
450J
µg/
Kg
[4,400]
Ref.
15,
pp.
1­
9,
23­
30,
136
Hexachlorobenzene
300J
µg/
Kg
[4,400]
Ref.
15,
pp.
1­
9,
23­
30,
137
SE­
21
FGW65
Pesticides/
PCBs
Aldrin
170
µg/
Kg
[57]
Ref.
15,
pp.
1­
9,
23­
30,
161
Endosulfan
I
1.4J*
µg/
Kg
[5.7]
Ref.
15,
pp.
1­
9,
23­
30,
161
Endrin
66
µg/
Kg
[11]
Ref.
15,
pp.
1­
9,
23­
30,
161
Aroclor­
1248
3,400
µg/
Kg
[5.7]
Ref.
15,
pp.
1­
9,
23­
30,
161
Aroclor­
1254
ND
[110]
Ref.
15,
pp.
1­
9,
23­
30,
161
Aroclor­
1260
1,100
µg/
Kg
[110]
Ref.
15,
pp.
1­
9,
23­
30,
161
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
51
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
22
MFHW86
Inorganics
Cadmium
0.76
mg/
Kg
[2.2]
Ref.
12,
pp.
1­
7,
10­
13,
21
Chromium
188
mg/
Kg
[4.5]
Ref.
12,
pp.
1­
7,
10­
13,
21
Copper
82.2
mg/
Kg
[11.2]
Ref.
12,
pp.
1­
7,
10­
13,
21
Lead
151mg/
Kg
[1.3]
Ref.
12,
pp.
1­
7,
10­
13,
21
Manganese
276
mg/
Kg
[6.7]
Ref.
12,
pp.
1­
7,
10­
13,
21
Mercury
17.8
mg/
Kg
[0.22]
Ref.
12,
pp.
1­
7,
10­
13,
21
Nickel
51
mg/
Kg
[17.9]
Ref.
12,
pp.
1­
7,
10­
13,
21
Silver
62.8mg/
Kg
[4.5]
Ref.
12,
pp.
1­
7,
10­
13,
21
Vanadium
10.2
mg/
Kg
[22.3]
Ref.
12,
pp.
1­
7,
10­
13,
21
Zinc
337
mg/
Kg
[8.9]
Ref.
12,
pp.
1­
7,
10­
13,
21
Cyanide
1.01LJv
mg/
Kg
[2.2]
Ref.
12,
pp.
1­
7,
10­
13,
21
SE­
22
FGW66
Volatiles
Carbon
Disulfide
31.0J*
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
59
Cyclohexane
ND
[110]
Ref.
14,
pp.
1­
13,
26­
34,
59
Benzene
450
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
59
Methylcyclohexane
390
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
59
Toluene
950
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
59
Chlorobenzene
72J
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
60
Ethylbenzene
360
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
60
Xylenes
(total)
1,400
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
60
Isopropylbenzene
3,900
µg/
Kg
[1,110]
Ref.
14,
pp.
1­
13,
26­
34,
60
1,3­
Dichlorobenzene
1,300
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
60
1,4­
Dichlorobenzene
530
µg/
Kg
[110]
Ref.
14,
pp.
1­
13,
26­
34,
60
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
52
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
22
FGW66
Semivolatiles
Hexachlorobutadiene
ND
[25,000]
Ref.
14,
pp.
1­
13,
26­
34,
107
2­
Methylnaphthalene
20,000J
µg/
Kg
[25,000]
Ref.
14,
pp.
1­
13,
26­
34,
107
Hexachlorobenzene
ND
[25,000]
Ref.
14,
pp.
1­
13,
26­
34,
108
SE­
22
FGW66
Pesticides/
PCBs
Aldrin
NDM
[390]
Ref.
14,
pp.
1­
13,
26­
34,
137
Endosulfan
I
70JN
µg/
Kg
[4.2]
Ref.
14,
pp.
1­
13,
26­
34,
137
Endrin
150
µg/
Kg
[8.2]
Ref.
14,
pp.
1­
13,
26­
34,
137
Aroclor­
1248
14,000
µg/
Kg
[820]
Ref.
14,
pp.
1­
13,
26­
34,
137
Aroclor­
1254
ND
[820]
Ref.
14,
pp.
1­
13,
26­
34,
137
Aroclor­
1260
340J*
µg/
Kg
[82]
Ref.
14,
pp.
1­
13,
26­
34,
137
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
53
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
23
MFHW87
Inorganics
Cadmium
1.8
mg/
Kg
[1.6]
Ref.
12,
pp.
1­
7,
10­
13,
22
Chromium
77.5
mg/
Kg
[3.3]
Ref.
12,
pp.
1­
7,
10­
13,
22
Copper
39.2
mg/
Kg
[8.2]
Ref.
12,
pp.
1­
7,
10­
13,
22
Lead
77.7
mg/
Kg
[0.98]
Ref.
12,
pp.
1­
7,
10­
13,
22
Manganese
179
mg/
Kg
[4.9]
Ref.
12,
pp.
1­
7,
10­
13,
22
Mercury
6.5
mg/
Kg
[0.16]
Ref.
12,
pp.
1­
7,
10­
13,
22
Nickel
35
mg/
Kg
[13.1]
Ref.
12,
pp.
1­
7,
10­
13,
22
Silver
ND
[3.3]
Ref.
12,
pp.
1­
7,
10­
13,
22
Vanadium
24.7
mg/
Kg
[16.4]
Ref.
12,
pp.
1­
7,
10­
13,
22
Zinc
483
mg/
Kg
[6.6]
Ref.
12,
pp.
1­
7,
10­
13,
22
Cyanide
0.71LJv
mg/
Kg
[1.6]
Ref.
12,
pp.
1­
7,
10­
13,
22
SE­
23
FGW67
Volatiles
Carbon
Disulfide
NDJ
[54]
Ref.
14,
pp.
1­
13,
26­
34,
65
Cyclohexane
ND
[18]
Ref.
14,
pp.
1­
13,
26­
34,
65
Benzene
3J
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
65
Methylcyclohexane
7J
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
65
Toluene
2J
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
65
Chlorobenzene
16J
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
66
Ethylbenzene
4J
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
66
Xylenes
(total)
22
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
66
Isopropylbenzene
26
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
66
1,3­
Dichlorobenzene
29
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
66
1,4­
Dichlorobenzene
5J
µg/
Kg
[18]
Ref.
14,
pp.
1­
13,
26­
34,
66
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
54
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
23
FGW67
Semivolatiles
Hexachlorobutadiene
ND
[18,000]
Ref.
14,
pp.
1­
13,
26­
34,
110
2­
Methylnaphthalene
ND
[18,000]
Ref.
14,
pp.
1­
13,
26­
34,
110
Hexachlorobenzene
ND
[18,000]
Ref.
14,
pp.
1­
13,
26­
34,
111
SE­
23
FGW67
Pesticides/
PCBs
Aldrin
NDMJ
[11,000]
Ref.
14,
pp.
1­
13,
26­
34,
139
Endosulfan
I
270J
µg/
Kg
[310]
Ref.
14,
pp.
1­
13,
26­
34,
139
Endrin
1,000J
µg/
Kg
[600]
Ref.
14,
pp.
1­
13,
26­
34,
139
Aroclor­
1248
300,000
µg/
Kg
[60,000]
Ref.
14,
pp.
1­
13,
26­
34,
139
Aroclor­
1254
ND
[6,000]
Ref.
14,
pp.
1­
13,
26­
34,
139
Aroclor­
1260
ND
[6,000]
Ref.
14,
pp.
1­
13,
26­
34,
139
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
55
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
24
MFHW88
Inorganics
Cadmium
1.4
mg/
Kg
[2.2]
Ref.
12,
pp.
1­
7,
10­
13,
23
Chromium
229
mg/
Kg
[4.4]
Ref.
12,
pp.
1­
7,
10­
13,
23
Copper
104
mg/
Kg
[11.1]
Ref.
12,
pp.
1­
7,
10­
13,
23
Lead
139
mg/
Kg
[1.3]
Ref.
12,
pp.
1­
7,
10­
13,
23
Manganese
221
mg/
Kg
[6.7]
Ref.
12,
pp.
1­
7,
10­
13,
23
Mercury
37.1
mg/
Kg
[0.22]
Ref.
12,
pp.
1­
7,
10­
13,
23
Nickel
70
mg/
Kg
[17.8]
Ref.
12,
pp.
1­
7,
10­
13,
23
Silver
1.0
mg/
Kg
[4.4]
Ref.
12,
pp.
1­
7,
10­
13,
23
Vanadium
18.0
mg/
Kg
[22.2]
Ref.
12,
pp.
1­
7,
10­
13,
23
Zinc
450mg/
Kg
[8.9]
Ref.
12,
pp.
1­
7,
10­
13,
23
Cyanide
0.40LJv
mg/
Kg
[2.2]
Ref.
12,
pp.
1­
7,
10­
13,
23
SE­
24
FGW68
Volatiles
Carbon
Disulfide
ND
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
68
Cyclohexane
ND
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
68
Benzene
380J
µg/
Kg
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
68
Methylcyclohexane
620J
µg/
Kg
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
68
Toluene
660J
µg/
Kg
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
68
Chlorobenzene
2,200
µg/
Kg
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
69
Ethylbenzene
650J
µg/
Kg
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
69
Xylenes
(total)
3,500
µg/
Kg
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
69
Isopropylbenzene
9,600
µg/
Kg
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
69
1,3­
Dichlorobenzene
33,000
µg/
Kg
[2,100]
Ref.
14,
pp.
1­
13,
26­
34,
69
1,4­
Dichlorobenzene
3,700
µg/
Kg
[1,100]
Ref.
14,
pp.
1­
13,
26­
34,
69
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
56
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
24
FGW68
Semivolatiles
Hexachlorobutadiene
7,700J
µg/
Kg
[21,000]
Ref.
14,
pp.
1­
13,
26­
34,
113
2­
Methylnaphthalene
4,000J
µg/
Kg
[21,000]
Ref.
14,
pp.
1­
13,
26­
34,
113
Hexachlorobenzene
2,200J
µg/
Kg
[21,000]
Ref.
14,
pp.
1­
13,
26­
34,
114
SE­
24
FGW68
Pesticides/
PCBs
Aldrin
NDMJ
[420]
Ref.
14,
pp.
1­
13,
26­
34,
142
Endosulfan
I
ND
[3.6]
Ref.
14,
pp.
1­
13,
26­
34,
142
Endrin
ND
[7.0]
Ref.
14,
pp.
1­
13,
26­
34,
142
Aroclor­
1248
19,000
µg/
Kg
[700]
Ref.
14,
pp.
1­
13,
26­
34,
142
Aroclor­
1254
ND
[70]
Ref.
14,
pp.
1­
13,
26­
34,
142
Aroclor­
1260
ND
[70]
Ref.
14,
pp.
1­
13,
26­
34,
142
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
57
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
25
MFHW89
Inorganics
Cadmium
1.0
mg/
Kg
[1.6]
Ref.
12,
pp.
1­
7,
10­
13,
24
Chromium
76.5
mg/
Kg
[3.3]
Ref.
12,
pp.
1­
7,
10­
13,
24
Copper
89.3
mg/
Kg
[8.2]
Ref.
12,
pp.
1­
7,
10­
13,
24
Lead
30.2
mg/
Kg
[0.98]
Ref.
12,
pp.
1­
7,
10­
13,
24
Manganese
103
mg/
Kg
[4.9]
Ref.
12,
pp.
1­
7,
10­
13,
24
Mercury
0.59
mg/
Kg
[0.16]
Ref.
12,
pp.
1­
7,
10­
13,
24
Nickel
20.1
mg/
Kg
[13.1]
Ref.
12,
pp.
1­
7,
10­
13,
24
Silver
ND
[3.3]
Ref.
12,
pp.
1­
7,
10­
13,
24
Vanadium
17.1
mg/
Kg
[16.4]
Ref.
12,
pp.
1­
7,
10­
13,
24
Zinc
227
mg/
Kg
[6.6]
Ref.
12,
pp.
1­
7,
10­
13,
24
Cyanide
0.34LJv
mg/
Kg
[1.6]
Ref.
12,
pp.
1­
7,
10­
13,
24
SE­
25
FGW69
Volatiles
Carbon
Disulfide
63BJ
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
74
Cyclohexane
2J
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
74
Benzene
2J
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
74
Methylcyclohexane
3J
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
74
Toluene
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
74
Chlorobenzene
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
75
Ethylbenzene
ND
[16]
Ref.
14,
pp.
1­
13,
26­
34,
75
Xylenes
(total)
46
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
75
Isopropylbenzene
48
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
75
1,3­
Dichlorobenzene
5J
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
75
1,4­
Dichlorobenzene
2J
µg/
Kg
[16]
Ref.
14,
pp.
1­
13,
26­
34,
75
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
58
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
25
FGW69
Semivolatiles
Hexachlorobutadiene
35J
µg/
Kg
[520]
Ref.
14,
pp.
1­
13,
26­
34,
116
2­
Methylnaphthalene
100J
µg/
Kg
[520]
Ref.
14,
pp.
1­
13,
26­
34,
116
Hexachlorobenzene
ND
[520]
Ref.
14,
pp.
1­
13,
26­
34,
117
SE­
25
FGW69
Pesticides/
PCBs
Aldrin
NDM
[110]
Ref.
14,
pp.
1­
13,
26­
34,
143
Endosulfan
I
0.99J
µg/
Kg
[2.7]
Ref.
14,
pp.
1­
13,
26­
34,
143
Endrin
12
µg/
Kg
[5.2]
Ref.
14,
pp.
1­
13,
26­
34,
143
Aroclor­
1248
1,400
µg/
Kg
[52]
Ref.
14,
pp.
1­
13,
26­
34,
143
Aroclor­
1254
ND
[52]
Ref.
14,
pp.
1­
13,
26­
34,
143
Aroclor­
1260
ND
[52]
Ref.
14,
pp.
1­
13,
26­
34,
143
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
59
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
26
MFHW90
Inorganics
Cadmium
0.89
mg/
Kg
[1.7]
Ref.
13,
pp.
1­
7,
12­
15,
31
Chromium
84.4
mg/
Kg
[3.4]
Ref.
13,
pp.
1­
7,
12­
15,
31
Copper
47.2
mg/
Kg
[8.5]
Ref.
13,
pp.
1­
7,
12­
15,
31
Lead
49.8
mg/
Kg
[1.0]
Ref.
13,
pp.
1­
7,
12­
15,
31
Manganese
111
mg/
Kg
[5.1]
Ref.
13,
pp.
1­
7,
12­
15,
31
Mercury
2.84J*
mg/
Kg
[0.17]
Ref.
13,
pp.
1­
7,
12­
15,
31
Nickel
20.5
mg/
Kg
[13.6]
Ref.
13,
pp.
1­
7,
12­
15,
31
Silver
0.41
mg/
Kg
[3.4]
Ref.
13,
pp.
1­
7,
12­
15,
31
Vanadium
11.9
mg/
Kg
[17.0]
Ref.
13,
pp.
1­
7,
12­
15,
31
Zinc
238
mg/
Kg
[6.8]
Ref.
13,
pp.
1­
7,
12­
15,
31
Cyanide
ND
[1.7]
Ref.
13,
pp.
1­
7,
12­
15,
31
SE­
26
FGW70
Volatiles
Carbon
Disulfide
220B
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
88
Cyclohexane
ND
[88]
Ref.
15,
pp.
1­
9,
23­
30,
88
Benzene
25J
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
88
Methylcyclohexane
69J
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
88
Toluene
38J
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
88
Chlorobenzene
1,700
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
89
Ethylbenzene
21J
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
89
Xylenes
(total)
91
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
89
Isopropylbenzene
120
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
89
1,3­
Dichlorobenzene
500
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
89
1,4­
Dichlorobenzene
470
µg/
Kg
[88]
Ref.
15,
pp.
1­
9,
23­
30,
89
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
60
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
26
FGW70
Semivolatiles
Hexachlorobutadiene
30,000
µg/
Kg
[12,000]
Ref.
15,
pp.
1­
9,
23­
30,
139
2­
Methylnaphthalene
ND
[12,000]
Ref.
15,
pp.
1­
9,
23­
30,
139
Hexachlorobenzene
8,500J
µg/
Kg
[12,000]
Ref.
15,
pp.
1­
9,
23­
30,
140
SE­
26
FGW70
Pesticides/
PCBs
Aldrin
ND
[3.0]
Ref.
15,
pp.
1­
9,
23­
30,
163
Endosulfan
I
ND
[3.0]
Ref.
15,
pp.
1­
9,
23­
30,
163
Endrin
ND
[5.8]
Ref.
15,
pp.
1­
9,
23­
30,
163
Aroclor­
1248
ND
[58]
Ref.
15,
pp.
1­
9,
23­
30,
163
Aroclor­
1254
ND
[58]
Ref.
15,
pp.
1­
9,
23­
30,
163
Aroclor­
1260
ND
[58]
Ref.
15,
pp.
1­
9,
23­
30,
163
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
61
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
27
MFHW91
Inorganics
Cadmium
ND
[1.3]
Ref.
12,
pp.
1­
7,
10­
13,
25
Chromium
13.3
mg/
Kg
[2.7]
Ref.
12,
pp.
1­
7,
10­
13,
25
Copper
10.7
mg/
Kg
[6.7]
Ref.
12,
pp.
1­
7,
10­
13,
25
Lead
13.6
mg/
Kg
[0.80]
Ref.
12,
pp.
1­
7,
10­
13,
25
Manganese
72.6
mg/
Kg
[4.0]
Ref.
12,
pp.
1­
7,
10­
13,
25
Mercury
0.53
mg/
Kg
[0.13]
Ref.
12,
pp.
1­
7,
10­
13,
25
Nickel
8.8
mg/
Kg
[10.7]
Ref.
12,
pp.
1­
7,
10­
13,
25
Silver
ND
[2.7]
Ref.
12,
pp.
1­
7,
10­
13,
25
Vanadium
10.1
mg/
Kg
[13.3]
Ref.
12,
pp.
1­
7,
10­
13,
25
Zinc
47.6
mg/
Kg
[5.3]
Ref.
12,
pp.
1­
7,
10­
13,
25
Cyanide
NDJv
[1.3]
Ref.
12,
pp.
1­
7,
10­
13,
25
SE­
27
FGW71
Volatiles
Carbon
Disulfide
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
77
Cyclohexane
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
77
Benzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
77
Methylcyclohexane
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
77
Toluene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
77
Chlorobenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
78
Ethylbenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
78
Xylenes
(total)
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
78
Isopropylbenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
78
1,3­
Dichlorobenzene
7J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
78
1,4­
Dichlorobenzene
2J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
78
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
62
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
27
FGW71
Semivolatiles
Hexachlorobutadiene
1,300
µg/
Kg
[430]
Ref.
14,
pp.
1­
13,
26­
34,
122
2­
Methylnaphthalene
ND
[430]
Ref.
14,
pp.
1­
13,
26­
34,
122
Hexachlorobenzene
2,500J
µg/
Kg
[430]
Ref.
14,
pp.
1­
13,
26­
34,
123
SE­
27
FGW71
Pesticides/
PCBs
Aldrin
NDMJ
[17]
Ref.
14,
pp.
1­
13,
26­
34,
145
Endosulfan
I
ND
[2.2]
Ref.
14,
pp.
1­
13,
26­
34,
145
Endrin
ND
[4.3]
Ref.
14,
pp.
1­
13,
26­
34,
145
Aroclor­
1248
57J*
µg/
Kg
[43]
Ref.
14,
pp.
1­
13,
26­
34,
145
Aroclor­
1254
ND
[43]
Ref.
14,
pp.
1­
13,
26­
34,
145
Aroclor­
1260
ND
[43]
Ref.
14,
pp.
1­
13,
26­
34,
145
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
63
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
Reference
SE­
28
MFHW71
Inorganics
Cadmium
ND
[1.3]
Ref.
12,
pp.
1­
7,
10­
13,
14
Chromium
9.8
mg/
Kg
[2.6]
Ref.
12,
pp.
1­
7,
10­
13,
14
Copper
10.1
mg/
Kg
[6.5]
Ref.
12,
pp.
1­
7,
10­
13,
14
Lead
13.5
mg/
Kg
[0.78]
Ref.
12,
pp.
1­
7,
10­
13,
14
Manganese
74.5
mg/
Kg
[3.9]
Ref.
12,
pp.
1­
7,
10­
13,
14
Mercury
0.8
mg/
Kg
[0.13]
Ref.
12,
pp.
1­
7,
10­
13,
14
Nickel
7.4
mg/
Kg
[10.4]
Ref.
12,
pp.
1­
7,
10­
13,
14
Silver
ND
[2.6]
Ref.
12,
pp.
1­
7,
10­
13,
14
Vanadium
10.6
mg/
Kg
[13.0]
Ref.
12,
pp.
1­
7,
10­
13,
14
Zinc
48.5
mg/
Kg
[5.2]
Ref.
12,
pp.
1­
7,
10­
13,
14
Cyanide
NDJv
[1.3]
Ref.
12,
pp.
1­
7,
10­
13,
14
SE­
28
FGA73
Volatiles
Carbon
Disulfide
8J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
35
Cyclohexane
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
35
Benzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
35
Methylcyclohexane
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
35
Toluene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
35
Chlorobenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
36
Ethylbenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
36
Xylenes
(total)
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
36
Isopropylbenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
36
1,3­
Dichlorobenzene
2J
µg/
Kg
[13]
Ref.
14,
pp.
1­
13,
26­
34,
36
1,4­
Dichlorobenzene
ND
[13]
Ref.
14,
pp.
1­
13,
26­
34,
36
Table
6
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
64
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
6
(Continued)

Surface
Water
Pathway
Contaminated
Sediment
Samples
Collected
from
the
Houston
Ship
Channel,
East
Fork
Tributary
and
Patrick
Bayou
SE­
28
FGA73
Semivolatiles
Hexachlorobutadiene
1,400
µg/
Kg
[430]
Ref.
14,
pp.
1­
13,
26­
34,
80
2­
Methylnaphthalene
ND
[430]
Ref.
14,
pp.
1­
13,
26­
34,
80
Hexachlorobenzene
3,100J
µg/
Kg
[430]
Ref.
14,
pp.
1­
13,
26­
34,
80
SE­
28
FGA73
Pesticides/
PCBs
Aldrin
NDMJ
[9.6]
Ref.
14,
pp.
1­
13,
26­
34,
128
Endosulfan
I
ND
[2.2]
Ref.
14,
pp.
1­
13,
26­
34,
128
Endrin
ND
[4.3]
Ref.
14,
pp.
1­
13,
26­
34,
128
Aroclor­
1248
29J*
µg/
Kg
[43]
Ref.
14,
pp.
1­
13,
26­
34,
128
Aroclor­
1254
ND
[43]
Ref.
14,
pp.
1­
13,
26­
34,
128
Aroclor­
1260
ND
[43]
Ref.
14,
pp.
1­
13,
26­
34,
128
ND
=
Not
detected.
Concentrations
for
these
constituents
were
not
detected
at
the
reported
quantitation
limit
in
sediment
samples.
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
IDL
=
Instrument
detection
limit.
L
=
Reported
concentration
is
between
the
IDL
and
CRDL.
CRDL
=
Contract
required
detection
limit.
M
=
Reported
concentration
should
be
used
as
a
raised
quantitation
limit
because
of
interferences
and/
or
laboratory
contamination.
N
=
Identification
is
tentative.
T
=
Identification
is
questionable
because
of
absence
of
other
commonly
coexisting
pesticides.
Shaded
samples
=
The
sample
met
observed
release
criteria
for
that
hazardous
substance.
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
65
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
7
Surface
Water
Pathway
Data
Usability
for
Sediment
Samples
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
mg/
Kg
or
µg/
Kg
Bias
*
Bias
Correction
Calculation
*
Release
Concentration
Corrected
for
Bias
Usable
as
a
Release
Value?

INORGANICS
(mg/
Kg)

SE­
01/
MFHW65
(Bkgd)
Mercury
0.31J
[0.12]
UNK
x
1.83
0.56J
YES
SE­
03/
MFHW67
(Bkgd)
Sodium
1,730Jv
[1,235]
LOW
x
25.43
43,993.9Jv
YES
SE­
04/
MFHW68
Mercury
20.7J
[0.19]
UNK
÷
1.83
11.31J
YES
SE­
05/
MFHW69
Mercury
12.1J
[0.2]
UNK
÷
1.83
6.61J
YES
SE­
06/
MFHW70
Mercury
41.5J
[0.22]
UNK
÷
1.83
22.68J
YES
SE­
07/
MFHW71
Mercury
2.6J
[0.14]
UNK
÷
1.83
1.42J
NO
SE­
08/
MFHW72
Mercury
2.9J
[0.15]
UNK
÷
1.83
1.58J
NO
SE­
09/
MFHW73
Mercury
3.2J
[0.15]
UNK
÷
1.83
1.75J
YES
SE­
20/
MFHW84
Mercury
28.8J
[0.34]
UNK
÷
1.83
15.74J
YES
SE­
21/
MFHW85
Mercury
14J
[0.32]
UNK
÷
1.83
7.65J
YES
SE­
26/
MFHW90
Mercury
5.2J
[0.17]
UNK
÷
1.83
2.84J
YES
ORGANICS
(
µg/
Kg)

SE­
15/
FGW59
(Bkgd)
Phenanthrene
8,500J
[450]
UNK
x
10
85,000J
YES
Table
7
continued
...
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
66
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
7
(Continued)

Surface
Water
Pathway
Data
Usability
for
Sediment
Samples
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
mg/
Kg
or
µg/
Kg
Bias
*
Bias
Correction
Calculation
*
Release
Concentration
Corrected
for
Bias
Usable
as
a
Release
Value?

ORGANICS
(
µg/
Kg)

SE­
15/
FGW59
(Bkgd)
Pyrene
16,000J
[450]
UNK
x
11.86
189,760J
YES
SE­
18/
FGW62
Carbon
Disulfide
74J
[74]
UNK
÷
10
7.4J
NO
SE­
22/
FGW66
Carbon
Disulfide
310J
[110]
UNK
÷
10
31.0J
NO
SE­
20/
FGW64
Cyclohexane
390J^
[38]
HIGH
NA
NA
YES
SE­
06/
FGW50
Benzene
290J^
[100]
HIGH
÷
1.97
147.2J^
YES
SE­
20/
FGW64
Benzene
360J^
[38]
HIGH
÷
1.97
182.7J^
YES
SE­
06/
FGW50
Methylcyclohexane
340J^
[100]
HIGH
NA
NA
YES
SE­
20/
FGW64
Methylcyclohexane
540J^
[38]
HIGH
NA
NA
YES
SE­
06/
FGW50
Toluene
150J^
[100]
HIGH
÷
1.63
92.0J^
NO
SE­
20/
FGW64
Toluene
60J^
[38]
HIGH
÷
1.63
36.8J^
NO
SE­
05/
FGW49
Chlorobenzene
200Jv
[110]
LOW
None
Required
­­­­­­­­­­­
YES
SE­
06/
FGW50
Chlorobenzene
670J^
[100]
HIGH
÷
2.0
335J^
YES
SE­
07/
FGW51
Chlorobenzene
1,100J^
[720]
HIGH
÷
2.0
550J^
YES
Table
7
continued
...
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
67
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
7
(Continued)

Surface
Water
Pathway
Data
Usability
for
Sediment
Samples
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
mg/
Kg
or
µg/
Kg
Bias
*
Bias
Correction
Calculation
*
Release
Concentration
Corrected
for
Bias
Usable
as
a
Release
Value?

SE­
06/
FGW50
Ethylbenzene
150J^
[100]
HIGH
÷
10.0
15J^
NO
SE­
20/
FGW64
Ethylbenzene
490J^
[38]
HIGH
÷
10.0
49J^
YES
SE­
05/
FGW49
Xylenes
110Jv
[110]
LOW
None
Required
­­­­­­­­­
YES
SE­
06/
FGW50
Xylenes
780J^
[100]
HIGH
÷
10.0
78J^
NO
SE­
20/
FGW64
Xylenes
1,400J^
[38]
HIGH
÷
10
140J^
YES
SE­
21/
FGW65
Xylenes
610Jv
[38]
LOW
None
Required
­­­­­­­­­­
YES
SE­
05/
FGW49
Isopropylbenzene
180Jv
[110]
LOW
None
Required
­­­­­­­­­­
YES
SE­
06/
FGW50
Isopropylbenzene
680J^
[100]
HIGH
NA
NA
YES
SE­
05/
FGW49
1,4­
Dichlorobenzene
360Jv
[110]
LOW
None
Required
­­­­­­­­­­
YES
SE­
24/
FGW68
Acenaphthylene
21,000J
[21,000]
UNK
÷
10
2,100J
NO
SE­
06/
FGW50
delta­
BHC
16J
[3.5]
UNK
÷
10
1.6J
NO
SE­
04/
FGW48
gamma­
BHC
(Lindane)
10J
[3.4]
UNK
÷
11.79
0.85J
NO
SE­
19/
FGW63
Heptachlor
19J
[2.9]
UNK
÷
7.88
2.4J
NO
SE­
23/
FGW67
Heptachlor
1,100J
[310]
UNK
÷
7.88
139.6J
NO
Table
7
continued
...
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
68
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
7
(Continued)

Surface
Water
Pathway
Data
Usability
for
Sediment
Samples
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
mg/
Kg
or
µg/
Kg
Bias
*
Bias
Correction
Calculation
*
Release
Concentration
Corrected
for
Bias
Usable
as
a
Release
Value?

SE­
25/
FGW69
Heptachlor
4.9J
[2.7]
UNK
÷
7.88
0.62J
NO
SE­
08/
FGW52
Aldrin
16J
[2.5]
UNK
÷
14.26
1.12J
NO
SE­
09/
FGW53
Aldrin
16J
[2.7]
UNK
÷
14.26
1.12J
NO
SE­
18/
FGW62
Endosulfan
I
27J
[2.5]
UNK
÷
10.0
2.7J
YES
SE­
19/
FGW63
Endosulfan
I
9.9J
[2.9]
UNK
÷
10.0
0.99J
NO
SE­
20/
FGW64
Endosulfan
I
7.8J
[6.5]
UNK
÷
10.0
0.78J
NO
SE­
21/
FGW65
Endosulfan
I
14J
[5.7]
UNK
÷
10.0
1.4J
NO
SE­
04/
FGW48
Endrin
130J
[66]
UNK
÷
14.13
9.2J
NO
SE­
19/
FGW63
Endrin
25J
[5.6]
UNK
÷
14.13
1.8J
NO
SE­
04/
FGW48
Endosulfan
II
12J
[6.6]
UNK
÷
10.0
1.2J
NO
SE­
04/
FGW48
4,4'­
DDD
15J
[6.6]
UNK
÷
10.0
1.5J
NO
SE­
05/
FGW49
4,4'­
DDD
12J
[7.5]
UNK
÷
10.0
1.2J
NO
SE­
24/
FGW68
alpha­
Chlordane
5.5J
[3.6]
UNK
÷
10.0
0.55J
NO
SE­
06/
FGW50
Aroclor­
1248
3,800J
[69]
UNK
÷
10.0
380J
YES
Table
7
continued
...
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
69
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
TABLE
7
(Continued)

Surface
Water
Pathway
Data
Usability
for
Sediment
Samples
Sample
Location/
CLP
ID
Hazardous
Substance
Concentration
[SQL]
mg/
Kg
or
µg/
Kg
Bias
*
Bias
Correction
Calculation
*
Release
Concentration
Corrected
for
Bias
Usable
as
a
Release
Value?

SE­
14/
FGW58
Aroclor­
1248
160J
[53]
UNK
÷
10.0
16J
NO
SE­
18/
FGW62
Aroclor­
1248
3,300J
[49]
UNK
÷
10.0
330J
YES
SE­
19/
FGW63
Aroclor­
1248
4,600J
[49]
UNK
÷
10.0
460J
YES
SE­
27/
FGW71
Aroclor­
1248
570J
[43]
UNK
÷
10.0
57J
YES
SE­
28/
FGW73
Aroclor­
1248
290J
[43]
UNK
÷
10.0
29J
NO
SE­
07/
FGW51
Aroclor­
1254
320J
[48]
UNK
÷
10.0
32J
NO
SE­
08/
FGW52
Aroclor­
1254
370J
[49]
UNK
÷
10.0
37J
NO
SE­
05/
FGW49
Aroclor­
1260
1,800J
[75]
UNK
÷
10.0
180J
YES
SE­
06/
FGW50
Aroclor­
1260
2,100J
[69]
UNK
÷
10.0
210J
YES
SE­
18/
FGW62
Aroclor­
1260
290J
[49]
UNK
÷
10.0
29J
NO
SE­
20/
FGW64
Aroclor­
1260
1,600J
[130]
UNK
÷
10.0
160J
YES
SE­
22/
FGW66
Aroclor­
1260
3,400J
[82]
UNK
÷
10.0
340J
YES
*
Ref.
9,
pp.
1­
18.
NA
=
Not
available.
UNK
=
Unknown
[SQL]
=
The
sample
quantitation
limit.
SQL
for
metals
is
mg/
Kg
and
the
SQL
for
organics
is
µg/
Kg.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
J,
J^,
Jv
=
The
value
is
an
estimated
concentration
because
one
or
more
of
the
quality
control
criteria
have
not
been
met.
It
is
included
to
show
that
the
substance
has
been
qualitatively
identified
as
present
in
this
sample.
J^
indicates
a
high
bias
and
Jv
indicates
a
low
bias.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
70
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
Hazardous
Substances
Released
The
Source
No.
1
samples
collected
during
the
SSI
sampling
event
were
analyzed
for
Organic
Target
Compound
List
(TCL)
and
Inorganic
Target
Analyte
List
(TAL)
constituents
following
EPA
Contract
Laboratory
Program
(CLP)
protocol
and
analytical
methodology
(see
References
12­
15,
Analytical
Data).
The
analytical
results
documented
organic
and
inorganic
concentrations
greater
than
or
equal
to
the
background
sample(
s)
quantitation
limit,
if
not
detected
in
background.
Using
the
chemical
analysis
method,
sample
results
revealed
elevated
concentrations
of
the
following
constituents
qualifying
as
observed
releases
to
the
surface
water
migratory
pathway
(Ref.
1,
Section
2.3):

Cadmium
Chromium
Copper
Lead
Manganese
Mercury
Nickel
Silver
Vanadium
Zinc
Cyanide
Carbon
Disulfide
Cyclohexane
Benzene
Methylcyclohexane
Toluene
Chlorobenzene
Ethylbenzene
Xylenes
(Total)
Isopropylbenzene
1,3­
Dichlorobenzene
1,4­
Dichlorobenzene
Hexachlorobutadiene
2­
Methylnaphthalene
Hexachlorobenzene
Aldrin
Endosulfan
I
Endrin
Aroclor­
1248
Aroclor­
1254
Aroclor­
1260
Since
cadmium,
chromium,
copper,
lead,
manganese,
mercury,
nickel,
silver,
vanadium,
zinc,
cyanide,
carbon
disulfide,
cyclohexane,
benzene,
methylcyclohexane,
toluene,
chlorobenzene,
ethylbenzene,
xylenes
(total),
isopropylbenzene,
1,3­
dichlorobenzene,
1,4­
dichlorobenzene,
hexachlorobutadiene,
2­
methylnaphthalene,
hexachlorobenzene,
aldrin,
endosulfan
I,
endrin,
aroclor
1248,
aroclor
1254
and
aroclor
1260
have
previously
been
documented
to
be
present
in
the
site
source,
Source
No.
1
­
Other
(Contaminated
Sediments)
associated
with
the
HSC,
East
Fork
Tributary
and
Patrick
Bayou
and
are
available
to
a
pathway
as
specified
in
HRS
Rule
Section
2.2.3,
the
detected
contaminants
as
listed
above
(and
shown
in
Tables
6
and
7)
indicate
an
observed
release
to
the
surface
water
migratory
pathway
in
the
watershed
being
evaluated
(Ref.
1,
Section
2.3).

Since
an
observed
release
has
been
established
for
the
watershed,
an
Observed
Release
Factor
Value
of
550
is
assigned
to
the
watershed
(Ref.
1,
Section
4.1.2.1.1).

Observed
Release
Factor
Value:
550
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
71
SWOF­
Surface
Water
Overland/
Flood
Migration
Pathway
SWOF­
Observed
Release
Potential
Sources
of
the
Sediment
Contamination
in
Patrick
Bayou
As
previously
stated
in
Section
2.2.1
of
this
HRS
Documentation
Record,
specific
sources
for
the
contaminants
of
concern
could
not
be
sufficiently
identified,
but
most
likely
occurred
from
historical
accumulation
from
a
multitude
of
discharge
sources
surrounding
the
site.
The
surrounding
area
includes
several
major
petrochemical
companies
and
large­
scale
manufacturing
facilities
that
discharge
large
quantities
of
industrial
wastewater
under
permit
to
Patrick
Bayou
and
the
East
Fork
Tributary
(Ref.
4,
pp.
3
and
4).
A
brief
summary
of
these
facilities
is
included
below
indicating
the
type
of
facility
and
nature/
composition
of
wastes
generated.
Although
these
facilities
generate
wastes
similar
to
those
identified
within
Patrick
Bayou
and
HSC,
attribution
to
any
specific
facility/
source
has
not
been
definitively
established:

°
An
adjacent
facility
consisting
of
oil
refinery
and
chemical
manufacturing
units.
The
refinery
has
been
operational
since
1929
and
produces
gasoline,
fuels,
lubricants,
waxes
and
feed
stock
for
the
chemical
plant.
The
chemical
plant
produces
a
variety
of
products
including
chlorinated
organics,
plastics,
resins
and
solvents.
The
facility
applied
for
and
maintains
wastewater
and
air
discharge
permits.
The
facility
lists
a
total
of
92
active
hazardous,
class
1
and
class
2
waste
streams
from
manufacturing
and
on­
site
waste
treatment
processes.
Wastes
include:
spent
acetonitrile
(methyl
cyanide)
from
recovery
units,
spent
catalyst
wastes
from
cracker
units,
polybutadiene
and
butadiene
heavy
ends,
phenol
distillation
still
bottoms,
spent
sulfolane
sludge
containing
benzene,
bis­
phenol
acetone
wastes,
spent
acids
and
caustics,
chrome
wastes
from
cooling
towers/
filters,
lead/
inorganic
contaminated
media
from
on­
site
processes,
tank
bottom
solids
from
production
units,
PCB
oil/
wastes
from
electrical
equipment
and
oil­
water
emulsions,
concentrated
organic
aqueous
skimmings,
sludge
w/
toxic
organics
and
discharged
wastewater
from
the
on­
site
wastewater
treatment
processes
(Ref.
17,
pp.
1­
5,
10
and
19­
41).

°
An
adjacent
facility
that
manufactures
additives
for
oil,
greases
and
fuels.
The
plant
has
been
in
operation
since
1952.
The
facility
lists
a
total
of
39
active
hazardous,
class
1
and
class
2
waste
streams
from
manufacturing
and
on­
site
waste
management
activities
which
include:
spent
acid
and
caustic
aqueous
solutions,
barium
and
arsenic
filter
cake,
oily
clarifier
sludges,
reactive
aqueous
sulfide
wastes
and
waste
oils
from
on­
site
processes/
air
pollution
control
devices;
mercury
contaminated
debris
and
phosphorus
pentasulfide
from
on­
site
process
units
and
spill
cleanups,
and
residues
and
light
organic
(chlorinated
polyisobutylene)
liquid
wastes
from
byproduct
processing
(Ref.
18,
pp.
3­
4
and
17­
24).

°
An
adjacent
facility
that
manufactures
vinyl
chloride
monomer
(VCM)
for
the
production
of
polyvinyl
chloride
(PVC)
products.
The
facility
also
incinerates
wastes
piped
from
an
adjacent
facility.
The
plant
has
conducted
independent
operations
since
1987
and
lists
43
active
hazardous,
class
1
and
class
2
waste
streams.
Wastes
include:
PCB
contaminated
liquids/
absorbent
from
on­
site
transformers/
capacitors,
cooling
tower
sludge,
heavy
end
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
72
halogenated
solvents
and
waste
lubricant
oils
from
distillation/
process
equipment
and
organic/
oil
contaminated
soils
from
spill
cleanups
(Ref.
19,
pp.
1­
3
and
6­
16).

In
addition
to
the
potential
sources
described
above,
runoff
also
may
have
occurred
from
properties
upgradient
from
the
bayou.

4.1.3
Human
Food
Chain
Threat
As
described
in
the
HRS
Rule,
the
human
food
chain
threat
for
the
watershed
of
concern
will
be
evaluated
based
on
three
factor
categories:
likelihood
of
release,
waste
characteristics
and
targets
(Ref.
1,
Section
4.1.3).

4.1.3.1
Human
Food
Chain
Threat
­
Likelihood
of
Release
Since
an
observed
release
has
been
documented
to
the
surface
water
pathway,
the
same
Likelihood
of
Release
Factor
Category
Value
of
550
established
for
the
Drinking
Water
Threat
is
also
assigned
for
the
Human
Food
Chain
Threat
­
Likelihood
of
Release
Factor
Category
Value
(Ref.
1,
Section
4.1.3.1).

4.1.3.2
Human
Food
Chain
Threat
­
Waste
Characteristics
4.1.3.2.1
Toxicity/
Persistence/
Bioaccumulation
The
following
Human
Food
Chain
Toxicity,
Persistence
and
Bioaccumulation
Potential
Factor
Values
have
been
assigned
to
those
substances
associated
with
Source
No.
1
and
qualifying
as
an
observed
release,
which
have
a
containment
factor
greater
than
0.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
73
TABLE
8
Surface
Water
Pathway
Hazardous
Substance
Toxicity,
Persistence
and
Bioaccumulation
Potential
Hazardous
Substance
Food
Chain
Toxicity
Factor
Value
1
Persistence
Factor
Value
Food
Chain
Bioaccumulation
Potential
Factor
2
Tox/
Per/
Bio
Factor
Value
Reference
Cadmium
10,000
1.0
5,000
5.0E+
07
Ref.
2,
pp.
6,
15,
65
Chromium
10,000
1.0
5.0
5.0E+
04
Ref.
2,
pp.
6,
15,
97
Copper
­­­
1.0
50,000
0
Ref.
2,
pp.
6,
15,
104
Lead
10,000
1.0
50
5.0E+
05
Ref.
2,
pp.
6,
15,
237
Manganese
10,000
1.0
0.5
5.0E+
03
Ref.
2,
pp.
6,
15,
244
Mercury
10,000
0.4
50,000
2.0E+
08
Ref.
2,
pp.
6,
15,
246
Nickel
10,000
1.0
0.5
5.0E+
03
Ref.
2,
pp.
6,
15,
268
Silver
120
1.0
50
6.0E+
03
Ref.
2,
pp.
6,
15,
343
Vanadium
100
1.0
0.5
5.0E+
01
Ref.
2,
pp.
6,
15,
410
Zinc
10
1.0
500
5.0E+
03
Ref.
2,
pp.
6,
15,
418
Cyanide
100
0.4
0.5
2.0E+
01
Ref.
2,
pp.
6,
15,
113
Carbon
Disulfide
10
0.4
500
2.0E+
03
Ref.
2,
pp.
6,
15,
72
Cyclohexane
1
0.4
500
2.0E+
02
Ref.
2,
pp.
6,
15,
116
Benzene
100
0.4
5,000
2.0E+
05
Ref.
2,
pp.
6,
15,
37
Table
8
(Continued)
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
74
SWOF/
Human
Food
Chain
Threat
TABLE
8
(Continued)

Surface
Water
Pathway
Hazardous
Substance
Toxicity,
Persistence
and
Bioaccumulation
Potential
Hazardous
Substance
Food
Chain
Toxicity
Factor
Value
1
Persistence
Factor
Value
Food
Chain
Bioaccumulation
Potential
Factor
2
Tox/
Per/
Bio
Factor
Value
Reference
Methylcyclohexane
NA
NA
NA
NA
NA
Toluene
10
0.4
50
2.0E+
02
Ref.
2,
pp.
6,
15,
378
Chlorobenzene
100
0.0007
50
3.5E­
00
Ref.
2,
pp.
6,
15,
86
Ethylbenzene
10
0.4
50
2.0E+
02
Ref.
2,
pp.
6,
15,
184
Xylenes
(Total)
10
0.4
50
2.0E+
02
Ref.
2,
pp.
6,
15,
415
Isopropylbenzene
1,000
0.4
500
2.0E+
05
Ref.
2,
pp.
6,
15,
111
1,3­
dichlorobenzene
­­­
0.4
50
0
Ref.
2,
pp.
6,
15,
134
1,4­
dichlorobenzene
10
0.4
50
2.0E+
02
Ref.
2,
pp.
6,
15,
135
Hexachloro
butadiene
10,000
1.0
50
5.0E+
05
Ref.
2,
pp.
6,
15,
217
2­
Methylnaphthalene
­­­
0.4
5,000
0
Ref.
2,
pp.
6,
15,
260
Hexachlorobenzene
1,000
1.0
5,000
5.0E+
06
Ref.
2,
pp.
6,
15,
216
Aldrin
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
14
Endosulfan
I
100
1.0
500
5.0E+
04
Ref.
2,
pp.
6,
15,
176
Endrin
10,000
1.0
5,000
5.0E+
07
Ref.
2,
pp.
6,
15,
179
Aroclor
1248
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
293
Aroclor
1254
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
293
Aroclor
1260
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
293
Notes:
Bold
=
indicates
the
highest
toxicity/
persistence/
bioaccumulation
factor
value.

1
"Very
large
river"
was
the
predominant
surface
water
body
used
for
factor
value
determination
along
the
target
distance
limit
where
human
food
chain
threat
targets
were
identified.

2
The
higher
value
for
salt
water
or
fresh
water
was
used
for
the
human
food
chain
bioaccumulation
factor
value.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
75
Since
prior
water
quality
studies
conducted
within
Patrick
Bayou
and
the
nearby
HSC
indicated
brackish
water
within
the
HSC
(salinity
10.3
ppt
at
Stations
1
and
2),
the
higher
human
food
chain
bioaccumulation
potential
factor
was
used
as
specified
in
the
HRS
Guidance
Manual
to
evaluate
human
food
chain
targets
located
in
brackish
waters
subjected
to
potential
contamination
(Ref.
4
p.
11,
Table
3;
Ref.
3,
pp.
239­
41).

A
review
of
Table
8
reveals
the
hazardous
substances
with
the
highest
Human
Food
Chain
Toxicity/
Persistence/
Bioaccumulation
Factor
Value
are
Aldrin,
Aroclor­
1248,
­1254
and
­1260
with
a
value
of
5.0
x
10
8
(Ref.
1,
Section
4.1.3.2.1.4,
Table
4­
16;
Ref.
2,
pp.
2,
6,
14
and
293).

Human
Food
Chain
Threat
­
Observed
Release
Factor
Value:
550
Toxicity/
Persistence/
Bioaccumulation
Factor
Value:
5.0
x
10
8
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
76
SWOF/
Human
Food
Chain
­
Hazardous
Waste
Quantity
4.1.3.2.2
Hazardous
Waste
Quantity
TABLE
9
Surface
Water
Pathway
Hazardous
Waste
Quantity
Source
Number
Source
Hazardous
Waste
Quantity
Value
(HRS
Rule,
Section
2.4.2.1.5)
Is
Source
Hazardous
Constituent
Quantity
data
complete?
(Yes/
No)

1
>
0,
but
unknown
No
Sum
of
Values:
>
0,
but
unknown
As
described
in
the
HRS
Rule,
Section
2.4.2.2,
if
the
hazardous
waste
constituent
quantity
is
not
adequately
determined
for
the
source,
and
any
target
for
a
migration
pathway
is
subject
to
Level
I
or
Level
II
concentrations,
then
assign
the
greater
of
either
value
from
HRS
Rule
Table
2.6
or
a
value
of
100,
whichever
is
greater,
as
the
Hazardous
Waste
Quantity
Factor
Value
for
that
pathway
(Ref
1,
pp.
51592
and
51602).

Based
on
the
Source
Hazardous
Waste
Quantity
Value
shown
in
Table
9
above
and
HRS
Rule,
Section
2.4.2.2
guidelines,
a
Hazardous
Waste
Quantity
Factor
Value
of
100
is
assigned
for
the
surface
water
migration
pathway
(Ref.
1).

[Note:
See
discussion
under
Section
4.1.4.3.1
of
this
report
for
rationale
used
to
determine
a
Hazardous
Waste
Quantity
Factor
Value
when
a
pathway
target
is
subjected
to
Level
I
or
Level
II
concentrations].

Hazardous
Waste
Quantity
Factor
Value:
100
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
77
SWOF/
Food
Chain­
Hazardous
Waste
Quantity
4.1.3.2.3
Waste
Characteristics
Factor
Category
Value
The
Human
Food
Chain
Threat
­
Waste
Characteristics
Factor
Category
Value
is
based
on
the
Waste
Characteristics
Product.
The
Waste
Characteristics
Product
is
the
product
of
the
Toxicity/
Persistence
Factor
Value,
the
Hazardous
Waste
Quantity
Factor
Value
and
the
Bioaccumulation
Potential
Factor
Value,
subject
to
maximum
values
(Ref
1
p.
51620),
i.
e.,

Where
for
the
Patrick
Bayou
Site:

Toxicity/
Persistence
Factor
Value
=
10,000
x
1.0
=
1.0
x
10
4
Hazardous
Waste
Quantity
Factor
Value
=
100
And:

(Toxicity/
Persistence)
x
Hazardous
Waste
Quantity
=
(1.0
x
10
4)
x
100
=
1.0
x
10
6
Where
for
the
Patrick
Bayou
Site:

(Toxicity/
Persistence)
x
Hazardous
Waste
Quantity
=
1.0
x
10
6
Bioaccumulation
Potential
Factor
Value
=
50,000
Therefore:

(Toxicity/
Persistence
x
Hazardous
Waste
Quantity)
x
Bioaccumulation
Potential
=
1.0
x
10
6
x
50,000
=
5.0
x
10
10
Based
on
a
Waste
Characteristics
Product
of
5.0
x
10
10
,
a
Waste
Characteristics
Factor
Category
Value
of
320
is
assigned
from
the
HRS
Rule,
Table
2­
7
(Ref.
1,
Section
2.4.3.1).

Waste
Characteristics
Factor
Category
Value:
320
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
78
SWOF/
Human
Food
Chain
Threat
­
Targets
4.1.3.3
Human
Food
Chain
Threat
­
Targets
No
Level
I
or
Level
II
observed
releases
were
documented
in
the
Houston
Ship
Channel
fishery.

4.1.3.3.1
Food
Chain
Individual
Since
the
industries
located
along
the
shoreline
of
Patrick
Bayou
generally
restrict
public
access
for
safety
reasons
requiring
escorts
while
on­
site
and
there
are
several
above­
ground
industrial
pipelines
crossing
the
bayou
near
the
north
entrance
restricting
access
by
boat,
public
fishing
within
Patrick
Bayou
is
not
likely
to
occur
(Ref.
10,
p.
9).
Since
consumption
of
human
food
chain
organisms
could
not
be
documented
within
Patrick
Bayou,
the
potential
or
actual
human
food
chain
threat
exposure
factor
values
were
not
evaluated
for
the
bayou.

Since
an
observed
release
to
the
watershed
has
been
documented
(see
Section
4.1.2.1.1
of
this
report),
potential
exposure
to
a
food
chain
individual
within
the
target
distance
limit
(TDL)
for
the
watershed
can
be
evaluated.
During
the
27­
30
March,
2000
SSI
sampling
event,
fishermen
were
observed
catching
human
food
chain
organisms
(blue
crabs)
in
two
locations
as
shown
in
photos
#1,
2
and
4
along
the
Houston
Ship
Channel
within
the
surface
water
pathway
15­
mile
TDL
(Ref.
10,
pp.
6
and
12).

As
a
result,
a
food
chain
individual
factor
value
of
20
is
assigned
based
on
the
observed
release
of
a
hazardous
substance
with
a
bioaccumulation
potential
factor
value
greater
than
500
to
the
watershed
and
a
fishery
present
within
the
TDL
as
specified
in
the
HRS
Rule,
Section
4.1.3.3
(Ref.
1).

Food
Chain
Individual
Factor
Value:
20
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
79
SWOF/
Human
Food
Chain
Threat
­
Targets
4.1.3.3.2.
Population
The
Population
Factor
Value
was
not
scored
because
of
its
minimal
impact
on
the
site
score.
The
population
is
therefore
unknown,
but
greater
0.

4.1.3.3.3
Calculation
of
Human
Food
Chain
Threat
­
Targets
Factor
Category
Value
As
described
in
the
HRS
Rule,
the
Human
Food
Chain
(HFC)
Threat
­
Targets
Factor
Category
Value
is
calculated
by
summing
the
Food
Chain
Individual
and
Population
Factor
Values.
The
resulting
value
is
assigned
as
the
HFC
Threat
­
Targets
Factor
Category
Value
(Ref.
1),
i.
e.,
Where
for
the
Patrick
Bayou
Site:

Food
Chain
Individual
Factor
Value
=
20
Population
Factor
Value
=
0
Therefore:

Food
Chain
Individual
Factor
Value
+
Population
Factor
Value
=
Target
Factor
Category
Value
=
20
+
0
=
20
4.1.3.4
Calculation
of
Human
Food
Chain
Threat
Score
As
described
in
the
HRS
Rule,
the
Human
Food
Chain
(HFC)
Threat
Score
is
calculated
by
multiplying
the
HFC
Threat
Factor
Category
Values
for
Likelihood
of
Release,
Waste
Characteristics
and
Targets.
The
product
of
these
values
is
then
rounded
to
the
nearest
integer
and
divide
by
82,500.
The
resulting
value,
subject
a
maximum
of
100,
is
assigned
as
the
Human
Food
Chain
Threat
Score
for
the
watershed
(Ref.
1,
p.
51621),
i.
e.,

Where
for
the
Patrick
Bayou
Site:

Food
Chain
Threat
Likelihood
of
Release
Factor
Category
Value
=
550
Food
Chain
Waste
Characteristics
Factor
Category
Value
=
320
Food
Chain
Target
Factor
Category
Value
=
20
Therefore:

Human
Food
Chain
Threat
Score
=
(550)
x
(320)
x
(20)
=
42.67
82,500
Targets
Factor
Category
Value:
20
Human
Food
Chain
Threat
Score:
42.67
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
80
SWOF/
Environmental
Threat
4.1.4
Environmental
Threat
As
described
in
the
HRS
Rule,
the
environmental
threat
will
be
evaluated
based
on
three
factor
categories:
likelihood
of
release,
waste
characteristics
and
targets
(Ref.
1).

4.1.4.1
Environmental
Threat
­
Likelihood
of
Release
Since
an
observed
release
has
been
documented
to
the
surface
water
pathway,
the
same
Likelihood
of
Release
Factor
Category
Value
of
550
established
for
the
Drinking
Water
Threat
is
also
assigned
for
the
Environmental
Threat
­
Likelihood
of
Release
Factor
Category
Value
(Ref.
1).

4.1.4.2
Environmental
Threat
­
Waste
Characteristics
4.1.4.2.1
Ecosystem
Toxicity/
Persistence/
Bioaccumulation
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
81
TABLE
10
Surface
Water
Pathway
Hazardous
Substance
Toxicity,
Persistence
and
Bioaccumulation
Potential
Hazardous
Substance
Ecosystem
Toxicity
Factor
Value
1
Persistence
Factor
Value
Ecosystem
Bioaccumulation
Potential
Factor
2
Ecosystem
Tox/
Per/
Bio
Factor
Value
Reference
Cadmium
1,000
1.0
5,000
5.0E+
06
Ref.
2,
pp.
6,
15,
65
Chromium
100
1.0
5.0
5.0E+
02
Ref.
2,
pp.
6,
15,
97
Copper
­­­
1.0
50,000
0
Ref.
2,
pp.
6,
15,
104
Lead
1,000
1.0
5,000
5.0E+
06
Ref.
2,
pp.
6,
15,
237
Manganese
­­­
1.0
50,000
0
Ref.
2,
pp.
6,
15,
244
Mercury
10,000
0.4
50,000
2.0E+
08
Ref.
2,
pp.
6,
15,
246
Nickel
10
1.0
500
5.0E+
03
Ref.
2,
pp.
6,
15,
268
Silver
10,000
1.0
50
5.0E+
05
Ref.
2,
pp.
6,
15,
343
Vanadium
­­­
1.0
0.5
0
Ref.
2,
pp.
6,
15,
410
Zinc
10
1.0
500
5.0E+
03
Ref.
2,
pp.
6,
15,
418
Cyanide
1,000
0.4
0.5
2.0E+
02
Ref.
2,
pp.
6,
15,
113
Carbon
Disulfide
100
0.4
500
2.0E+
04
Ref.
2,
pp.
6,
15,
72
Cyclohexane
100
0.4
500
2.0E+
04
Ref.
2,
pp.
6,
15,
116
Benzene
100
0.4
500
2.0E+
04
Ref.
2,
pp.
6,
15,
37
Methylcyclohexane
NA
NA
NA
NA
NA
Toluene
100
0.4
50
2.0E+
03
Ref.
2,
pp.
6,
15,
378
Chlorobenzene
1,000
0.0007
50
3.5E+
01
Ref.
2,
pp.
6,
15,
86
Ethylbenzene
100
0.4
50
2.0E+
03
Ref.
2,
pp.
6,
15,
184
Xylenes
(Total)
10
0.4
50
2.0E+
02
Ref.
2,
pp.
6,
15,
415
Isopropylbenzene
100
0.4
500
2.0E+
04
Ref.
2,
pp.
6,
15,
111
1,3­
dichlorobenzene
100
0.4
50
2.0E+
03
Ref.
2,
pp.
6,
15,
134
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
82
Table
10
Surface
Water
Pathway
Hazardous
Substance
Toxicity,
Persistence
and
Bioaccumulation
Potential
Hazardous
Substance
Ecosystem
Toxicity
Factor
Value
1
Persistence
Factor
Value
Ecosystem
Bioaccumulation
Potential
Factor
2
Ecosystem
Tox/
Per/
Bio
Factor
Value
Reference
1,4­
dichlorobenzene
100
0.4
50
2.0E+
03
Ref.
2,
pp.
6,
15,
135
Hexachlorobutadiene
10,000
1.0
5,000
5.0E+
07
Ref.
2,
pp.
6,
15,
217
2­
Methylnaphthalene
1,000
0.4
5,000
2.0E+
06
Ref.
2,
pp.
6,
15,
260
Hexachlorobenzene
10
1.0
50,000
5.0E+
05
Ref.
2,
pp.
6,
15,
216
Aldrin
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
14
Endosulfan
I
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
176
Endrin
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
179
Aroclor
1248
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
293
Aroclor
1254
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
293
Aroclor
1260
10,000
1.0
50,000
5.0E+
08
Ref.
2,
pp.
6,
15,
293
Notes:
Bold
=
indicates
the
highest
toxicity/
persistence/
bioaccumulation
factor
value.

1
"Very
large
river"
was
the
predominant
surface
water
body
used
for
factor
value
determination
along
the
target
distance
limit
where
sensitive
environmental
targets
were
identified.

2
The
lower
value
for
salt
water
or
fresh
water
was
used
for
the
ecosystem
factor
value
determination.

Ecosystem
Toxicity
Factor
Values
for
the
hazardous
substances
documented
as
observed
releases
were
derived
from
the
EPA
Superfund
Chemical
Data
Matrix
(SCDM)
1996
associated
with
the
surface
water
migratory
pathway
(Ref.
2).
Since
prior
water
quality
studies
within
Patrick
Bayou
indicated
varying
salinity
ranging
from
fresh
water
(salinity
0.0
ppt
at
Stations
8
and
9)
to
brackish
water
(ranging
from
1.2
ppt
at
Station
10
to
12.4
ppt
at
Station
4),
the
lower
ecosystem
bioaccum­
ulation
potential
factor
value
was
used
as
specified
in
the
HRS
Guidance
Manual
to
evaluate
targets
located
in
brackish
waters
subject
to
actual
contamination
(Ref.
4.
p.
11,
Table
3;
Ref.
3,
p.
239­
41).

Ecosystem
Persistence
Factor
Values
were
also
derived
using
SCDM
values
associated
with
the
surface
water
migratory
pathway
using
persistence
values
for
a
river
as
the
predominant
water
category
(Ref.
2).
As
specified
in
the
HRS
Rule,
Section
4.1.4.2.1.2,
for
contaminated
sediments
with
no
identified
source,
the
furthest
upstream
location
with
an
observed
release
is
to
be
used
at
the
point
of
measurement
to
determine
predominant
water
category
(Ref.
1).
Since
the
majority
of
sensitive
environments
being
evaluated
are
located
within
the
upper
portions
of
Patrick
Bayou,
the
predominant
body
of
water
is
more
like
a
river
than
a
tidal
basin
as
shown
in
Photos
#33,
35,
37
and
42
(Ref.
4,
p.
11;
Ref.
10
pp.
26,
31,
35
and
37).
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
83
A
review
of
Table
10
reveals
the
hazardous
substances
with
the
highest
Ecosystem
Toxicity/
Persistence/
Bioaccumulation
Factor
Value
are
Aldrin,
Endosulfan
I,
Endrin
and
Aroclor­
1248,
­1254
and
­1260
with
a
value
of
5.0
x
10
8
(Ref.
1,
Section
4.1.4.2.1.4,
Table
4­
20;
Ref.
2,
pp.
2,
6,
14,
179
and
293).

Ecosystem
Toxicity/
Persistence/
Bioaccumulation
Factor
Value:
5
x
10
8
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
84
SWOF/
Environmental
Threat­
Hazardous
Waste
Quantity
4.1.4.2.2
Hazardous
Waste
Quantity
TABLE
11
Surface
Water
Pathway
Hazardous
Waste
Quantity
Source
Number
Source
Hazardous
Waste
Quantity
Value
(HRS
Rule,
Section
2.4.2.1.5)
Is
Source
Hazardous
Constituent
Quantity
data
complete?
(Yes/
No)

1
>
0,
but
unknown
No
Sum
of
Values:
>
0,
but
unknown
As
described
in
the
HRS
Rule,
Section
2.4.2.2,
if
the
hazardous
waste
constituent
quantity
is
not
adequately
determined
for
the
source,
and
any
target
for
a
migration
pathway
is
subject
to
Level
I
or
Level
II
concentrations,
then
assign
the
greater
of
either
value
from
HRS
Rule
Table
2.6
or
a
value
of
100,
whichever
is
greater,
as
the
Hazardous
Waste
Quantity
Factor
Value
for
that
pathway
(Ref
1).

Based
on
the
Source
Hazardous
Waste
Quantity
Value
shown
in
Table
11
above
and
HRS
Rule,
Section
2.4.2.2
guidelines,
a
Hazardous
Waste
Quantity
Factor
Value
of
100
is
assigned
for
the
surface
water
migration
pathway
(Ref.
1).

[Note:
See
discussion
under
Section
4.1.4.3.1
of
this
report
for
rationale
used
to
determine
a
Hazardous
Waste
Quantity
Factor
Value
when
a
pathway
target
is
subjected
to
Level
I
or
Level
II
concentrations].

Hazardous
Waste
Quantity
Factor
Value:
100
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
85
SWOF/
Environmental­
Hazardous
Waste
Quantity
4.1.4.2.3
Waste
Characteristics
Factor
Category
Value
The
Environmental
Threat
­
Waste
Characteristics
Factor
Category
Value
is
based
on
the
Waste
Characteristics
Product.
The
Waste
Characteristics
Product
is
the
product
of
the
Ecosystem
Toxicity/
Persistence
Factor
Value,
the
Hazardous
Waste
Quantity
Factor
Value
and
the
Ecosystem
Bioaccumulation
Potential
Factor
Value,
subject
to
maximum
values
(Ref.
1).

Where
for
the
Patrick
Bayou
Site:

Ecosystem
Toxicity/
Persistence
Factor
Value
=
10,000
x
1.0
=
1.0
x
10
4
Hazardous
Waste
Quantity
Factor
Value
=
100
And:

(Ecosystem
Toxicity/
Persistence)
x
Hazardous
Waste
Quantity
=
(1.0
x
10
4
)
x
100
=
1.0
x
10
6
Where
for
the
Patrick
Bayou
Site:

(Ecosystem
Toxicity/
Persistence)
x
Hazardous
Waste
Quantity
=
1
x
10
6
Ecosystem
Bioaccumulation
Potential
Factor
Value
=
50,000
Therefore:

(Ecosystem
Toxicity/
Persistence
x
Hazardous
Waste
Quantity)
x
Ecosystem
Bioaccumulation
Potential
=
1.0
x
10
6
x
50,000
=
5.0
x
10
10
Based
on
a
Waste
Characteristics
Product
of
5.0
x
10
10
,
an
Environmental
Threat
­
Waste
Characteristics
Factor
Category
Value
of
320
is
assigned
from
the
HRS
Rule,
Table
2­
7
(Ref.
1,
Section
2.4.3.1).

Environmental
Threat
­
Waste
Characteristics
Factor
Category
Value:
320
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
86
SWOF/
Environmental
Threat
­
Targets
4.1.4.3
Environmental
Threat
­
Targets
4.1.4.3.1
Sensitive
Environments
During
the
SSI
reconnaissance,
there
were
several
sensitive
areas
identified
as
wetlands
located
near
the
confluence
of
the
East
Fork
tributary
and
along
several
small
islands
located
in
the
lower
delta
portion
of
Patrick
Bayou
(Ref.
10,
pp.
35,
37
and
39­
40).
A
total
of
four
(4)
wetland
sediment
samples,
SE­
23
(MFHW87/
FGW67),
SE­
25
(MFHW89/
FGW69),
SE­
27
(MFHW91/
FGW71)
and
its
duplicate
SE­
28
(MFHW71/
FGA73)
were
collected
within
these
locations
during
the
March
27­
30,
2000
SSI.
Only
one
of
these
wetland
areas
within
Patrick
Bayou
will
be
evaluated
in
this
section.

4.1.4.3.1.1
Level
I
Concentrations
Since
no
surface
water
samples
were
collected
during
the
SSI,
a
Level
I
Concentrations
Factor
Value
cannot
be
assigned
and
the
Level
I
Concentrations
Factor
Value
is
assigned
a
value
of
0
(Ref.
1).

Level
I
Concentrations
Factor
Value:
0
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
87
SWOF/
Environmental
Threat
­
Targets
4.1.4.3.1.2
Level
II
Concentrations
As
described
in
the
HRS
Rule,
Section
4.1.4.3.1.2,
if
a
hazardous
substance
is
present
and
meets
the
observed
release
criteria,
but
does
not
meet
or
exceed
relevant
ecological­
based
benchmarks
listed
in
HRS
Rule,
Table
4­
22,
it
is
considered
a
Level
II
concentration
(Ref.
1).
Table
12
below
identifies
the
sediment
samples
and
hazardous
substance
identified
by
chemical
analysis
that
qualify
as
Level
II
concentrations
with
detected
levels
below
applicable
ambient
aquatic
life
advisory
(AALAC)
or
ambient
water
quality
screening
(AWQC)
concentrations
(Ref.
1):

TABLE
12
Surface
Water
Pathway
Environmental
Threat
­
Targets
­
Level
II
Concentrations
Sample
Designation/
Identification
No./
Location
Hazardous
Substance
Concentration
(mg/
Kg
or
µg/
Kg)
[SQL]
­
Level
I,
II
Ambient
Aquatic
Life
Advisory
Conc.
(
µg/
L)
1
InWater
Distance
(miles)
2
Reference
SE­
23
FGW67
MFHW87
Wetland
Sample
within
Patrick
Bayou
Cadmium
1.8
mg/
Kg
[1.6]
­
II
1.0E+
00
0.70
mi.
Ref.
12,
p.
22
Ref.
14,
pp.
65­
67
and
139
Chromium
77.5
mg/
Kg
[3.3]
­
II
1.10E+
01
Mercury
6.5
mg/
Kg
[0.16]
­
II
1.20E­
02
Nickel
35
mg/
Kg
[13.1]
­
II
1.60E+
02
Zinc
483
mg/
Kg
[6.6]
­
II
1.10E+
02
Xylenes
22
µg/
Kg
[110]
­
II
NA
Isopropylbenzene
26
µg/
Kg
[18]
­
II
NA
1,3­
Dichlorobenzene
29
µg/
Kg
[18]
­
II
NA
Aroclor
1248
300,000
µg/
Kg
­
II
[60,000]
1.40E­
02
SE­
25
FGW69
MFHW89
Wetland
Sample
within
Patrick
Bayou
Chromium
76.5
mg/
Kg
[3.3]
­
II
1.10E+
01
0.59
mi.
Ref.
12,
p.
24
Ref.
14,
pp.
68­
69
and
143
Copper
89.3
mg/
Kg
[8.2]
­
II
1.20E+
01
Xylenes
46
µg/
Kg
[16]
­
II
NA
Isopropylbenzene
48
µg/
Kg
[16]
­
II
NA
Endrin
12
µg/
Kg
[5.2]
­
II
2.30E­
03
Aroclor
1248
1,400
µg/
Kg
[52]
­
II
1.40E­
02
Notes:
mg/
Kg
=
milligrams
per
kilogram
(parts
per
million).
µg/
Kg
=
micrograms
per
kilogram
(parts
per
billion).
[SQL]
=
Sample
Quantitation
Limit.
SQL
=
(CRQL/
CRDL)
x
(df)
/
%
solids,
where
%
solids
=
[100
­
%
moisture]
/
100
NA
=
Not
available.
1
Acute
concentrations
(in
µg/
L)
used
for
fresh
water
inhabitants.
2
As
measured
from
the
furtherest
upstream
release
sample
location
(Ref.
3,
p.
216,
Highlight
8­
14).
*
=
Adjusted
result.
See
Data
Usability
Table
7.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
88
SWOF­
Environmental
Threat
­
Level
II
Concentrations
Wetlands
Frontage:

As
specified
in
the
HRS
Rule,
Section
4.1.4.3.1.2,
when
measuring
the
affected
length
for
a
wetland
area
in
rivers,
use
the
length
of
the
wetlands
contiguous
to
the
in­
water
segment
of
the
hazardous
substance
migration
path,
i.
e.,
wetland
frontage
of
that
portion
subject
to
Level
II
concentrations
as
the
value
for
length.
For
an
isolated
wetland,
use
the
perimeter
of
that
portion
of
the
wetland
subject
to
Level
II
concentrations
as
the
length
(Ref.
1).
Distances
were
measured
using
an
Alvin
No.
1112
map
wheel
from
the
La
Porte
Texas,
7.5
Minute
Series
Topographic
National
Wetlands
Inventory
(NWI)
Map
(Ref.
16).
A
total
of
five
separate
US
Fish
&
Wildlife
Service
(USFWS)
wetlands
were
identified
within
Patrick
Bayou
and
along
the
East
Fork
Tributary;
however,
only
one
was
evaluated
for
HRS
purposes
located
within
areas
of
Level
II
contamination
(Ref.
1;
Ref.
16
and
Ref.
3,
p.
A­
20).

This
wetland
segment
begins
at
sample
location
SE­
14/
MFHW78/
FGW58
located
just
west
of
the
bridge
crossing
the
East
Fork
Tributary
near
the
confluence
area
in
the
upper
portion
of
Patrick
Bayou
(see
Figure
3),
continues
north
along
the
east
bank
of
Patrick
Bayou
beyond
sample
location
SE19
MFHW83/
FGW63
and
returns
along
the
west
bank
to
the
segment
origin.
The
segment
includes
wetland
sediment
sample
locations
SE­
23/
MFHW87/
FGW67
and
SE­
25/
MFHW89/
FGW69
(shown
in
Figure
3
and
photos
#35­
38).
Approximately
0.70
miles
of
HRS
qualifying
wetlands
(PUSLx
palustraine
unconsolidated
shore
subtidal
excavated)
as
shown
on
the
La
Porte,
Texas
National
Wetlands
Inventory
map
lie
along
the
hazardous
substance
migration
pathway/
Level
II
segment
(Ref.
3,
p.
216,
p.
338­
339,
Highlight
8­
66,
Highlight
8­
14,
p.
A­
22,
Highlight
A­
8;
Ref.
16,
p.
1).

Wetland
Wetland
Wetland
Level
of
Description
Location
Frontage
Concentration
Reference(
s)
Confluence
Area
N.
of
East
Fork
3,700'
(0.70
mi.)
Level
II
Ref.
10,
pp.
6,
8,
35,
37
Based
on
the
sample
results
indicated
in
Table
12,
the
wetland
area
located
in
the
Patrick
Bayou
and
East
Fork
Tributary
confluence
area
is
subject
to
Level
II
concentrations.
Therefore,
using
the
criteria
described
in
HRS
Rule,
Section
4.1.4.3.1.2,
the
Level
II
Concentrations
Factor
Value
for
the
surface
water
drainage
pathway
is
assigned
a
value
of
25
(Ref.
1).

The
Environmental
Threat
­
Level
II
Concentrations
Factor
Value
is
based
on
the
sum
of
the
Sensitive
Environments
Rating
Values
(HRS
Table
4­
23)
and
Wetlands
Rating
Values
(HRS
Table
4­
24),
excluding
Level
I
concentrations
(Ref.
1,
Section
4.1.4.3.1.1),
i.
e.,
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
89
SWOF­
Environmental
Threat
­
Level
II
Concentrations
Where
for
the
Patrick
Bayou
Site:

Sensitive
Environments
Rating
Value
=
Not
Evaluated
Wetlands
Rating
Value
=
25
Therefore:
Sensitive
Environments
Rating
Value
+
Wetlands
Rating
Value
=
Level
II
Concentrations
Factor
Value
=
0
+
25
=
25
Level
II
Concentrations
Factor
Value:
25
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
90
SWOF/
Environmental
Threat­
Potential
Contamination
4.1.4.3.1.3
Potential
Contamination
Since
Level
II
concentrations
have
been
documented
above,
any
value
for
potential
wetland
contamination
would
not
significantly
affect
the
site
score.
Therefore,
potential
contamination
is
not
evaluated.

Potential
Contamination
Factor
Value
(Not
Evaluated):
0
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
91
SWOF/
Environmental
Threat
­
Target
Factor
Category
Value
4.1.4.3.1.4
Calculation
of
Environmental
Threat
­
Targets
Factor
Category
Value
As
described
in
the
HRS
Rule,
Section
4.1.4.3.1.4,
the
Environmental
Threat
­
Targets
Factor
Category
Value
for
the
watershed
is
the
sum
of
the
values
for
the
Level
I
(0),
Level
II
(25)
and
Potential
Contamination
(0)
Factor
Values.
The
resulting
sum
value
of
25
is
assigned
as
the
Environmental
Threat
­
Target
Factor
Category
Value
(Ref.
1).

4.1.4.4
Calculation
of
Environmental
Threat
Score
for
a
Watershed
As
described
in
the
HRS
Rule,
the
Environmental
Threat
Score
is
calculated
by
multiplying
the
Environmental
Threat
Factor
Category
Values
for
Likelihood
of
Release,
Waste
Characteristics
and
Targets.
The
product
of
these
values
is
then
rounded
to
the
nearest
integer
and
divide
by
82,500.
The
resulting
value
is
assigned
as
the
Environmental
Threat
Score
for
the
watershed
(Ref.
1,
p.
51626),
i.
e.,

Where
for
the
Patrick
Bayou
Site:

Environmental
Threat
­
Likelihood
of
Release
Factor
Category
Value
=
550
Environmental
Threat
­
Waste
Characteristics
Factor
Category
Value
=
320
Environmental
Threat
­
Target
Factor
Category
Value
=
25
Therefore:

Environmental
Threat
Score
=
(550)
x
(320)
x
(25)
=
53
82,500
Environmental
Threat­
Target
Factor
Category
Value:
25
Environmental
Threat
Score:
53
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
92
SWOF/
Component
Score
For
a
Watershed
Migration
Pathway
Score
4.1.5
Calculation
of
Overland/
Flood
Migration
Component
Score
for
a
Watershed
As
described
in
the
HRS
Rule,
Section
4.1.5,
the
Overland/
Flood
Migration
Component
Score
for
the
watershed
is
calculated
by
summing
the
scores
for
the
Drinking
Water
Threat
(0),
Human
Food
Chain
Threat
(42.67)
and
Environmental
Threat
(53).
The
resulting
score
of
95.67,
is
assigned
as
the
Surface
Water
Overland/
Flood
Migration
Component
Score
for
the
watershed
(Ref.
1).

4.1.6
Calculation
of
Overland/
Flood
Migration
Component
Score
As
described
in
the
HRS
Rule,
Section
4.1.6,
the
highest
surface
water
Overland/
Flood
Migration
Component
Score
from
the
watersheds
evaluated
(only
one
watershed
was
evaluated
for
this
documentation
record)
is
selected
and
assigned
as
the
Surface
Water
Overland/
Flood
Migration
Component
Score
for
the
site,
subject
to
a
maximum
of
100.
The
Surface
Water
Overland/
Flood
Migration
Component
Score
is
assigned
a
value
of
95.67
(Ref.
1).

Surface
Water
Overland/
Flood
Migration
Component
Score:
95.67
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
93
SWOF/
Ground
Water
to
Surface
Water
Migration
Component
4.2
GROUND
WATER
TO
SURFACE
WATER
MIGRATION
COMPONENT
The
Ground
Water
to
Surface
Water
Component
was
not
evaluated
because
it
would
not
contribute
significantly
to
the
site
score.

4.3
CALCULATION
OF
SURFACE
WATER
MIGRATION
PATHWAY
SCORE
Only
the
Overland/
Flood
Migration
Component
(95.67)
was
scored.
This
value
of
95.67
is
assigned
as
the
Surface
Water
Migration
Pathway
Score.

Surface
Water
Migration
Pathway
Score:
95.67
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
94
SE
­
General
5.0
SOIL
EXPOSURE
PATHWAY
5.0.1
General
Considerations
The
Soil
Exposure
Pathway
was
not
evaluated
due
to
the
lack
of
targets
and
because
the
inclusion
of
this
pathway
would
not
significantly
affect
the
site
score.
Draft
HRS
Documentation
Record
Patrick
Bayou
Site
February
2001
TX0000605329
95
AM
­
Observed
Release
6.0
AIR
MIGRATION
PATHWAY
6.1.1
Observed
Release
The
air
migration
pathway
was
not
evaluated
since
a
release
to
the
air
pathway
has
not
been
documented
and
inclusion
of
this
pathway
would
not
significantly
affect
the
site
score.