Document 6RD0vVv9noEB11Dwqobbk1g84
Table 1. Overview of Pre-Remedial Design Investigation Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
PD! Study Element Bathymetric Survey
Surface Sediment Sampling for Baseline and SMA Delineation
SMB Fish Tissue Sampling for Baseline
Surface Water Sampling for Baseline
Subsurface Sediment Coring to Refine Remedial Footprint Boundaries Fish Acoustic Tracking Study
Downtown/Upriver Reach: Sediment, Surface Water, Tissue, and Trap Sampling to assess incoming loads
Background Porewater Sampling
Genera! Approach and Rationale
Current bed elevations to support the CSM, evaluating changes in sediment bed elevation, and run through decision tree. For SMA delineation and Baseline with Site Total sample count of 640 within Site:
428 random; Full ROD Table 17 Sediment COC list 212 SMA samples; Focused COCs only (1) Split 4 segments in half for 8 segment, plus Swan Island. 3-point composite (over small area)
Additional sample locations may be considered for reoccupation
Smallmouth bass fish tissue sampling at 95 stations in the Site Individual whole body samples, derive fillet values through relationship Full ROD Table 17 Tissue COCs Seven transects, 3 seasonal events, 3 subsamples per transect Vertical and horizontal compositing along transect Sample with high volume XAD samplers for low MDLs and peristaltic pump for select analytes Full ROD Table 17 Surface Water COCs, total and dissolved 90 sediment cores typically 10 to 15-ft deep and 6-ft in nearshore areas 2-ft sample increments Archive deeper intervals in 1 ft increments, as practical Focused COCs only <1), plus TOC and grain size
Year long study of acoustic tracking of SMB fish movements
60 sediment samples collected between RM 11.8 to RM 28.4 targeting fine grained sediment (30 samples Downtown Reach, 30 samples Upriver Reach)
40 SMB samples (20 in Downtown Reach; 20 in Upriver Reach) Surface water transects at RM 11.8 and RM 16.2 3 seasonal sampling events for surface water
Two sediment traps per transect at RM 11.81 and 16.5 (match SW program)
Full ROD Table 17 COCs for each media; all data will be considered; assumes sufficient sediment and fish present 10 locations with 3 composites per location Target placement in representative background areas, locations TBD Naturally-occurring COC metals - arsenic and manganese
Notes:
(1): Focused COCs Include RGBs, DDx, PAHs, and Dioxins and Furans
Abbreviations: COCs - contaminants of concern; SW - surface water; SMA - Sediment Management Area; TOC - Total Organic Carbon; MDL - method detection limits; SMB - smallmouth bass; PCB - polychlorinated biphenyls; DDx - sum of dichlorodiphenyltrichloroethane and its derivatives; PAHs - polycyclic aromatic hydrocarbons; CSM - Conceptual Site Model
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Table 2. Focused COCs with Remedial Action Levels Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Table 21. Sediment RALs and PTW Thresholds for Selected Remedy
Contaminants
Site Wide RALs(1)
Focused COCs PCBs Total PAHs (4) 2,3,7,8-TCDD 1,2,3,7,8-PeCDD 2,3,4,7,8-PeCDF DDx Additional Contaminants 2,3,7,8-TCDF 1,2,3,4,6,7,8-HxCDF cPAHs (BaP Eq) Chlorobenzene Naphthalene
75 13,000 0.0006 0.0008
0.2 160
NA NA NA NA NA
PTW
Navigation
Thresholds <2i Channel RALs
200 NA 0.01 0.01 0.2 7,050
0.6 0.04 106,000 >320 >140,000
1,000 170,000 0.002 0.003
1 650
NA NA NA NA NA
Notes: 1 - Site wide includes all areas of the Site except the navigation channel. FMD areas are subject to these RALs, 2 PTW thresholds are based on highly toxic PTW values (10'^ risk) except chlorobenzene and naphthalene, which are threshold values for not reliably contained PTW.
Abbreviations: BaP Eq - benzo(a)pyrene equivalent ePAPI -carcinogenic polycyclic aromatic hydrocarbon COC --Contaminant of concern DDx - dichlorodiphenyldichloroetkane + dichlorodiphenyidichloroethene +
dichlorodipheiiyitfichloroetliane FMD future maintenance dredge HxCDF - hexachlorodibenzofuran NA - not applicable PAH - polycyclic aromatic hydrocarbon PCB - polychlorinated biphenyl PeCDD --pentachlorodibenzo-p-dioxin PeCDF - pentaclilorodibenzofliran PTW principal threat waste RAL - remedial action level TCDD - tetrachlorodibenzo-p-dioxitt TCDF - teiraciilorodibenzoiuran jig/kg - microgram per kilogram > - greater than
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ED 002061 00115104-00002
Table 3. Summary of Cleanup Levels or Targets by Media Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Table 17. Summary of Cleanup Levels or Targets by Media
Contam inant
Surface W ater (1)
G round w ater {2}
R iver Bank Soil/Sedim ent {3}
Fish Tissue (4)
Unit
Cone.
Basis Unit
Cone.
Basis
Unit
Cone. Basis Unit
Cone. Basis
A ldrin A rsenic
Mg/L 0 ,0 0 0 0 0 0 7 7
A
M g /k g
2
R Mg/kg
0.06
R
Mg/L
0 .0 1 8
A Mg/L
0 .0 1 8
A
m g/kg
3
B m g/kg
0.001
R
Benzene BEHP
Ug/L
0.2
U g/L A
0 .4 4
A
M g /k g
135
R Mg/kg
72
R
C adm ium C hlordanes
Mg/L
0 .0 9 1
A/R (5) m g/kg
0.51
R
Ug/L
0 ,0 0 0 0 8 1
A
M g /k g
1.4
R Mg/kg
3
R
C hlorobenzene
Mg/ L
64
R
C hrom ium Copper Cya n id e DDx DDD DDE DDT 1,1-D ich io ro e th en e
Mg/L
100
A Mg/L
11
A
qg/L
2.74
A Mg/L
2.74
A /R
m g/kg
359
R
Mg/L
4
A
Ug/L
0.01
R Mg/L
0.001
A
M g /k g
6.1
R Mg/kg
3
R
Mg A
0 .0 0 0 0 3 1
A Mg/L
0 .0 0 0 0 3 1
A
M g /k g
114
R
M g/r
0 ,0 0 0 0 1 8
A Mg/L
0 ,0 0 0 0 1 3
A
M g /k g
226
R
Mg/L
0 .0 0 0 0 2 2
A Mg/L
0 .0 0 0 0 2 2
A
M g /kg
246
R
Mg/L
7
A
cis-l,2 -D ich lo ro e th e n e D ieldrin 2 ,4 -D ic h lo ro p h e n o x y a c e tlc acid
Mg/L
9.9
Mg/L
70
A
M g /k g
0.07
R Mg/kg
0.06
R
A
E th y lb e n z e n e
Mg/L
7.3
R Mg/L
7.3
R
H exachlorobenzene L in d a n e Lead
Ug/L
0 .0 0 0 0 2 9
A
M g /k g
M g /k g
0.6
R
M g /k g
5
R
Mg/L
0.54
A /R
m g/kg
196
R
M anganese
Mg/L
430
R
MCPP
ug/L
16
R
M ercury
m g/kg
0.085
R m g/kg
0 .0 3 1
A
P entachlorophenol
ug/L
0.03
A Mg/L
0.03
A
M g /k g
2.5
R
P e rc h lo ra te
Mg/L
15
A
PBDEs PCBs
M g /k g
26
R
ug/L 0.0000064
A Mg/L
0 .0 1 4
A /R
M g /k g
9
3 Mg/kg 0 .25 (6)
R
PAHs cPAHs (BaP eq)
M g /k g
23000
Ug/L
0 .0 0 0 1 2
A Mg/L
0 .0 0 0 1 2
A
M g /k g
12 (7)
3 Mg/kg
7.1
R
A c e n a p h tb e n e
Mg/L
23
R
A cenaphthylene
A n th ra c e n e
Mg/L
0.73
R
B enzo{a)anthracene
Ug/L
0 .0 0 1 2
A Mg/L
0 .0 0 1 2
A
B e n z o (a )p y re n e B e n zo(b}fluoranthene B enzo(g,b,i)pery!ene
Ug/L
0 .0 0 0 1 2
A Mg/L
0 .0 0 0 1 2
A
Mg/L
0 .0 0 1 2
A Mg/L
0 .0 0 1 2
A
B enzo{k}fiuoranthene
ug/L
0 .0 0 1 3
A Mg/L
0 .0 0 1 3
A
Chrysene
ug/L
0 .0 0 1 3
A Mg/L
0 .0 0 1 3
A
D ibenz(ai h )a n th ra ce n e
ug/L
0 .0 0 0 1 2
A Mg/L
0 .0 0 0 1 2
A
F luoranthene
F lu o re n e
lnd e no(i,2,3-e,d)pyrene 2 -M ethylnaphthaiene
Mg/L
0 .0 0 1 2
A Mg/L
0 .0 0 1 2
A
N aphthalene
Mg/L
12
R
P henanthrene
Pyrene
D io x in s /f urans (2,3,7,8-TC.DD eq)
Mg/L 0 .0 0 0 0 0 0 0 0 0 5 A
1 ,2 ,3 ,4 ,7 ,S-HxCDF
M g /k g
0 .0 0 0 4
3 M g/kg 0 .0 0 DOS
R
1 ,2 ,3 ,7 , S-PeCD D
M g /k g
0 .0 0 0 2
B Mg/kg o .o o o o o s
R
2 ,3 ,4 ,7 ,8 -P e C D F 2 ,3 ,7 ,8 -T C D F
M g /k g
0 .0 0 0 3
B Mg/kg 0,00003
R
Mg/kg 0 .00040658 R Mg/kg 0.0 0 00 8
R
2 ,3 ,7 ,8 -T C D D
M g /k g
0 .0 0 0 2
3 M g/kg O.OOOOOS
R
T e tra ch io ro e th en e
Mg/L
0 .2 4
A
T o lu e n e
Mg/L
9.8
R
TPH -D iesel
m g/kg
91
R
T P H -D ie se l <C1CS-C12 A lip h a tic )
Mg/L
2 .6
R
T rlb u tyltin
Mg/L
0,063
A
M g /k g
3080
R
T rich lo ro eth en e
Mg/L
0.6
A
2 ,4 ,5-T richlorophen oi V anadium
Mg/L
50
A
Mg/L
20
R
V inyl C hloride X y le n e s Z in c
Mg/ L
36.5
Mg/L Mg/L R Mg/L
0 .0 2 2 13
36.5
A
R
R
m g/kg
459
R
N otes:
(1} Surface W a te r C leanup Levels - RAOs 3 and 7
(2) G ro u n d w a te r C leanup Levels - RAOs 4 and S
{3} S e d im e n t C leanup Levels - RAOs 1 and 5
(4) Fish Tissue T a rg ets - RAOs 2 and &
(5} A /R ind ica te s th a t th e ARARs-based n u m b e r and th e risk-based n u m b e r are th e sam e. (6) T h e tis s u e ta r g e t is a ris k -b a s e d n u m b e r a nd d o e s n o t re p re s e n t b a c k g ro u n d le v e ls . A d d itio n a l d a ta w ill b e c o lle c te d to d e te r m in e b a c k g ro u n d fis h
tis s u e c o n c e n tra tio n s f o r PC'Bs d u rin g d e sig n a n d c o n s tru c tio n o f th e S e le c te d R em e d y. (7) T h e c le a n u p le v e l f o r cPAH s o f 12 p g /k g is base d o n d ir e c t c o n ta c t w it h s e d im e n t a n d is a p p lic a b le to n e a rs h o re s e d im e n t. T h e c le a n u p le v e l a p p lic a b le
to s e d im e n ts in th e n a v ig a tio n c h a n n e l is 3 ,9 5 0 p g /k g and is based on h u m a n c o n s u m p tio n o f clam s.
A bb reviations: A- ARAR-based n u m b e r A R A R -a p p lica ble o r re le va n t and a p p ro p ria te re q u ire m e n t B - Background-based num ber
BEHP - b is {2 -e th y ih e x v l}p h th a ia te BaP eq - h e n zo {a )p yre n e e q u iv a le n t C - carbon Cone - conce n tra tio n cPAH - carcinogenic polycyclic a ro m a tic hydrocarbon; DDD - d ich io ro d iph e n yld ich io ro e th a n e DDE - d ich io ro d lp h e n yld ich lo ro e th e n e DDT - d lch lo ro d lp h e n yltrich io ro e th a n e D D x - DDD + DDE + DDT HxCDF - l,2 ,3 ,7 ,8 .9 -h e x a c h :o ro d ib e n z o fu r3 n MCPP - 2 -{4 -c b lo ro -2 -m e th y lp h e n o x y )p ro p a n o ic acid rn g/kg - m illigra m per kilogram PAH - polycyclic a ro m a tic h ydrocarbon PBDE - p o ly b ro m in s te d d ip h e n y l e th e r FCB - p o ly c h lo rin a te d b ip h e n yl PeCDD - pentachlorodibe n zo-p -d ioxin PeCDF - p en ta c h lo ro d ib e n z o fu ra n R - risk-based n um b e r RAO - rem edial action obje ctive TCDD - 2,3,7,8-te tra ch lo ro d ib e n zo -p -d io xin TCDF - te tra ch fo ro d ib e n zo fu ra n s TPH - to ta l p e tro le u m hydrocarbons p g /kg - m icrograrn per kilogram M gA - m icrograrn p er lite r
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Table 4. Project Goals for Pre-Remedial Design Investigation Scope of Work Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
#
Project Goais
Spatial Scale
Media
Obtain SMA baseline
1
characterization data adequate to refine the remedial footprint
SMA specific
for allocation purposes
Discrete sediment grabs (0 to 30 cm), bathymetry, sediment cores
Establish current baseline conditions (SWACs, CSM) to 2 evaluate future remedy performance and progress towards RAOs
Site-wide, segments, rolling RM
3
Evaluate recovery changes within the Site
Site-wide, segments
Surface sediment, fish tissue (SMB), surface water
Surface sediment, fish tissue (SMB), surface water
4
Update Downtown and Upriver Reach datasets
RM 11.8 to 28.4
Surface sediment, fish tissue (SMB), surface water; porewater
Questions to Answer
Have the active remedial footprints changed since the FS? Can we refine the footprints and reduce uncertainty? Have the elevations changed since the FS, hence the footprint changes through the ROD technology decision tree?
What are the extent of footprints above RALs?
What are concentrations of COCs prior to remedial activities?
Do results support refinement of the remedial footprint?
What are current baseline risks? Are Site conditions improving since the RI/FS datasets?
Do improvements support the narrative of MNR?
What are upstream concentrations of select COCs in sediment and fish tissue, and have they changed since the RI/FS datasets? What are background concentrations of naturallyoccurring metals COCs in porewater? How could new data inform future evaluation of remedy performance and what is achievable?
Notes: (1) Data collected for each project goal may serve multiple data use objectives (DUOs). Abbreviations:
COCs - chemicals of concern; FS - feasibility study; ROD - Record of Decision; SWAC - surface weighted average concentrations; SMB - small mouth bass
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Table 5. Data Use Objectives for Pre-Remedial Design Investigation Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Proposed Scope Item
Data Use O bjective (DUO)
Refine CSM Update SWAC {Site, segments, roiling RM)
Update Baseline Conditions Recovery Changes Since RI/FS Active Footprint/ RAL exceedences
Remedial Technology Recontamination Potential
Support Allocation Institutional Controls Future Compliance
# Task
Purpose
Pre-Design F ield Investigation Studies
Site-wide bathymetry survey Surface sediment sampling
footprint recovery/bkgrd
Fish tissue sampling Surface water sampling
recovery/bkgrd recovery/bkgrd
Sediment cores Fish acoustic tracking study
footprint fish home range
Porewater sampling
bkgrd
Technical Analyses / Reporting
Evaluate current conditions
footprint
Evaluate recovery changes
Evaluate upstream levels
Refine active footprint
Evaluate fish home ranges and scale of SWAC estimate Refine the CSM based on current conditions Data Interpretation Report
recovery recovery footprint fish home range
recovery/footprint all
X
XXX
XXXX X X
X
XX
X
XX
X
XXX
X
X
XX
X
X
X
XX
X
X
X
X
X
XXXX X X
X
X
X
X
X
X
X
XX
XX
X
X
XX
X
XX XX
XX XXX
XXX X XX
Abbreviations: 1C - Institutional controls; bkgrd - background; CSM - conceptual site model; RAL - remedial action level; RM - river mile; SWAC - surface weighted average concentration
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ED 002061 00115104-00005
Table 6. S um m ary of Pre-Remedial D esign Investigation Media, Sam ple Counts,
and Analyses for Sediment, Tissue, and Surface W ater Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Medic:
Location Count
S.unpie iDs
Surface Sediment Unbiased
428 - within Site: 60 - D/U Reach
PDI-SS-BL-01 to PDI-SS-BL-428
Additional Surface
Sediment SMA
212 - within Site
PDI-SS-SMA-01 to PDI-SS-SMA-212
Subsurface Sediment
90 Cores - within Site
PDI-SC-01 to PDI-SC-90
Suspended Sediment (Sediment
T raps)
4 locations (12 samples over 3
rounds)
PD!-ST-R#-01 to PDI-ST-R#-04
Para meter Aldrin Arsenic BEHP
Cadmium Chlordanes
Copper DDx DDD DDE DDT
Dieldrin Lindane
Lead Mercury PCB congeners *71
PAHs cPAHs (BaP eq) 1,2,3,4,7,8-HxCDF 1,2,3,7,8-PeCDD 2,3,4,7,8-PeC DF
2,3,7,8-TCDF 2,3,7,8-TCDD
PCDD/Fs TPFI-Diesel Tributyltin
Zinc
TOC
Grain Size
DDx
PCB congeners (7! PAHs
PCDD/Fs
TOC
Grain Size PCB Aroclors
PCDD/Fs DDx PAHs
TOC
Grain Size Aldrin Arsenic BEHP
Cadmium Chlordanes
Copper DDx DDD DDE DDT
Dieldrin Lindane
Lead Mercury PCB congeners *71
PAHs cPAHs (BaP eq) 1,2,3,4,7,8-HxCDF 1,2,3,7,8-PeCDD 2,3,4,7,8-PeC DF
2,3,7,8-TCDF 2,3,7,8-TCDD
PCDD/Fs TPH-Diesei Tributyltin
Zinc
TOC
Grain Size
Analyte List Metho cl 8081B 6020B 8270C 6020B 8081B 6020B 8081B 8081B 8081B 8081B 8081B 8081B 6020B 7471A
1668 8270DSIM 8270DSIM
1613B 1613B 1613B 1613B 1613B 1613B 8015B-DRO OrganoTin 6020B
MBs.
0,175 0.0102
136 0.0053 0.0097 0.0608 0.529
0.17 0.529 0.171 0.158 0.344 0.024 0.0037
10 3.3 3.3 5 5 5
1 1 5 9.9 1.53 0.144
Plumb 1981/EPA 9060 0.00715
PSEP
0.1
8081B
0.529
1668 8270DSIM
1613B
Plumb 1981/ EPA 9060
PSEP 8082A 1613 8081 8270DSIM
Plumb 1981/EPA 9060
PSEP 8081B 6020B 8270C 6020B 8081B 620B 8081B 8081B 8081B 8081B 8081B 8081B 6020B 7471A 1668 8270DSIM 8270DSIM 1613B 1613B 1613B 1613B 1613B 1613B 8015B-DRO OrganoTin 6020B
Plumb 1981/ EPA 9060
PSEP
10 3.3 5
0.00715
0.1 0.00138
2.48 0.051
3.3
0.00715
0.1 0.175 0.0102 136 0.0053 0.0097 0.0608 0.529 0.17 0.529 0.171 0.158 0.344 0.024 0.0037
10 3.3 3.3 5 5 5
1 1 5 9.9 1.53 0.144
0.00715
0.1
Units Mg/kg mg/kg [jg/kg mg/kg Mg/kg mg/kg Mg/kg Mg/kg Mg/kg Mg/kg Mg/kg Mg/kg mg/kg mg/kg ng/kg Mg/kg Mg/kg pg/g pg/g pg/g pg/g pg/g pg/g mg/kg Mg/kg mg/kg
%
%
Mg/kg
ng/kg Mg/kg pg/g
%
% Mg/kg pg/g Mg/kg Mg/kg
%
% Mg/kg mg/kg Mg/kg mg/kg Mg/kg mg/kg Mg/kg Mg/kg Mg/kg Mg/kg Mg/kg Mg/kg mg/kg mg/kg ng/kg Mg/kg Mg/kg pg/g pg/g pg/g pg/g pg/g pg/g mg/kg Mg/kg mg/kg
%
%
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Tiers 8&9
ED 002061 00115104-00006
Table 6. Sum mary of Pre-Remedial Design Investigation Media, Sam ple Counts,
and Analyses for Sediment, Tissue, and Surface W ater Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Media
Lcca*:0:i CoUi-t
Sa>mpie IDs
Fish Tissue (SMB, whole
body)
95 - within Site; PDI-SMB-BL-01 to 40 - D/U Reach PDI-SMB-BL-135
Parameter Aldrin Arsenic BEHP
Chlordanes DDx
Dieldrin Hexachlorobenzene
Mercury Pentachlorophenol
PBDEs PCB congeners {7) 1,2,3,4,7,8-HxCDF 1,2,3,7,8-PeCDD 2,3,4.7,8-PeC DF
2,3,7,8-TCDF 2,3,7,8-TCDD
PCDD/Fs
Lipids
Analyte List
Method 8081B 6020B 8270D 8081B 8081B 8081B 8270D 7471A 8270D 1614 1668
1613B 1613B 1613B 1613B 1613B 1613B
DCM extraction gravimetric (NOAA,
1993)
MDL 0.5
0.0203 11.2
0.0194 0.5 0.5 5
0.00739 63.1 50 2 5 5 5 1 1 5
1.5
Units pg/kg-wet mg/kg-wet gg/kg-wet pg/kg-wet pg/kg-wet pg/kg-wet Mg/kg-wet
mg/kg pg/kg-wet pg/g-wet ng/kg-wet pg/g-wet pg/g-wet pg/g-wet pg/g-wet pg/g-wet pg/g-wet
%
Aldrin
AXYS Method
0.0048
ng/L
Arsenic BEHP
6020A 8270C
0.22
pg/L
1.6
pg/L
Chlordanes
AXYS Method
0.0048
ng/L
Chromium
6020A
0.378
pg/L
Copper
6020A
1.04
pg/L
DDx
AXYS Method
0.003
ng/L
DDD
AXYS Method
0.003
ng/L
DDE
AXYS Method
0.0024
ng/L
DDT
AXYS Method
0.0026
ng/L
Ethylbenzene
8260C
0.252
pg/L
Hexachlorobenzene
8270D
0.104
pg/L
MCPP
81515A
290
pg/L
Pentachlorophenol
8270D
0.271
pg/L
PCBs
AXYS Method
0.0048-0.0608 pg/L
cPAHs (BaP eq)l?l
AXYS Method or 8270SI M
0.2818
ng/L
Benzo(a)anthracene AXYS Method or 8270SIM
0.1234
ng/L
Surface Water161
7 transects (21 samples over 3
rounds)
PDI-SW-R#-01 to PD!-SW-R#-07
Benzo(a)pyrene
AXYS Method or 8270SIM
0.0588
ng/L
Benzo(b)fluoranthene AXYS Method or 8270SI M
0.2818
ng/L
Benzo(k)f!uoranthene AXYS Method or 8270SIM
0.2818
ng/L
Chrysene
AXYS Method or 8270SIM
0.1334
ng/L
Dibenz(a,h)anthracene AXYS Method or 8270SI M
0.1324
ng/L
lndeno(1,2,3-c,d)pyrene AXYS Method or 8270SIM
0.1264
ng/L
Naphthalene
AXYS Method or 8270SIM
0.1622
ng/L
Dioxins/Furans (2,3,7,8TCDD eq)
AXYS Method
0.00228
pg/L
Tributyltin Zinc TSS
OrganoTin 6020A 2540D
0.045
pg/L
2.65
pg/L
NA
NA
Turbidity, pH, flow rate velocity, eH, DO
field parameter
NA
NA
Porewater
8
PDI-PW-01 to PDI-PW-08
Arsenic Manganese
redox
200.7
0.05
pg/L
200.7
0.264
pg/L
field parameter
--
--
Notes: (1) Surface sediment MDLs from EPA Rl (2016) Table 5-2.1; PCB 1668 MDL from Vista Analytical. (2) Subsurface sediment MDLs from EPA R! (2016) Table 5-2.2 (3) Fish tissue MDLs from EPA Rl (2016) Table 5-6.1; PCB 1668 MDL from Vista Analytical. (4) Surface water MDLs from Portland Harbor RI/FS Round 3A Field Sampling Plan Surface Water Sampling (2006) Table 2-4
(5) Porewater MDL for Mn provided by analytical laboratory (TestAmerica), MDLs for As Is MRL reported in RI/FS Round 3A Field Sampling Plan Surface Water Sampling (2006) Table 2-4.
(6) Total and dissolved (7) Where MDLs for totals were not available, the highest MDL for Individual analyte was used. Abbreviations: BL - baseline; DDx - sum of dichlorodiphenyltrichloroethane and its derivatives; PAHs - polycyclic aromatic hydrocarbon; PCBs polychlorinated biphenyls; PCDD/Fs - polychlorinated dibenzo-p-dioxins and furans; PDI - Pre-remedial Design Investigation. PSEP Puget Sound Estuary Protocol; PW - porewater: TOC - total organic carbon; D/U - Downtown/Upriver Reach; SC - subsurface core; SMB - small mouth bass; SS - surface grab; SW - surface water
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ED 002061 00115104-00007
Table 7a. Sediment Cores for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
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ED 002061 00115104-00008
Table 7a. Sediment Cores for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
49
X
C450
10
2
RM 8 to 8.75W
long band
50 51
X X
20
8
20
8
52
X
20
8
53
X
15
8
RM 9.8W
54
X
55
X
15
8
15
2
56
X
LWMC24
15
2
57
X
15
8
RM11E
58
X
C003
15
2
59
X
C023
15
2
60
X
15
2
Proposed Nearshore/ Shallow Area Core Locations
RM 2E
B-1
X
Evraz
B-2
X
6
3
6
3
RM 3.5E
Blob
B-3
X
6
3
B-4
X
RM 3.8E
Slip
B-5
X
B-6
X
RM 3.9E
Blob
B-7
X
RM 4W
Blob
B-8
X
RM 4.52E
Slip
B-9
X
6
3
6
3
6
3
6
3
6
3
6
3
RM 4.8W
Blob
B-10
X
6
3
>8.0 >16.2 >12.1
>10
PCBs, DDx, Dioxin/Furans
PCBs, DDx, Dioxin/Furans
PCBs, DDx
PCBs, DDx
PCBs, DDx, Dioxin/Furans
PCBs
PCBs, DDx, Dioxin/Furans
PAHs PCBs, PAHs
PAHs, PCBs, DDx, Dioxin/Furans
RM 5.5E
Sliver
B-11
X
6
3
PAHs, PCBs, DDx, Dioxin/Furans
RM 5.7W
Sliver
B-12
X
RM 6.2W RM 6.3E RM 6.4W RM 6.5E
Blob Blob Blob Blob
B-13
X
B-14
X
B-15
X
B-16
X
RM 6.7W
Blob
B-17
X
RM 6.8E
Blob
B-18
X
RM 7W
B-19
X
Blob
B-20
X
RM 8.1W
Blob
B-21
X
B-22
X
B-23
X
Swan Island
B-24
X
B-25
X
B-26
X
RM 9E
Sliver
B-27
X
B-28
X
RM 9W Long band
B-29
X
RM 10.2W
Sliver
B-30
X
Total # Deep C otes
43
17
Total o f Nearshore Coi es
30
S o l OA-QC Samples
Total # o f Coi esiSampies
90
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
6
3
448
40 ' 88
PAHs, PCBs, DDx, Dioxin/Furans PAHs, DDx
PCBs, PAHs, DDx PAHs, DDx
PCBs, PAHs, DDx PCBs, DDx, Dioxin/Furans
PCBs, PAHs, DDx PCBs, DDx, Dioxin/Furans PCBs, DDx, Dioxin/Furans
PCBs
PCBs PCBs, DDx, Dioxin/Furans
PCBs
Notes: (1) Archive deeper intervals in nearshore areas. (2) Remedial Action Level Cleanup Concentration:
PCBs = 9.0 pg/kg, total PAHs = 23 mg/kg, DDx = 6.1 pg/kg, 2,3,7,8-TCDD = 0.0002 pg/kg Abbreviations: BML - below mudiine; COC - contaminant of concern; D/F - dioxins/furans; PAH - polycyclic aromatic hydrocarbons
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Tiers 8&9
ED 002061 00115104-00009
Table 7b. Rationale for Sediment Core Locations for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Alternative F Mod
New'
A ctive Footprint Atea C ore Core
D escription
S ta tio n
1
X
2
X
3
RM 2E
Evraz
4
Re Occupy
O ld S ta tio n
X
Sum m ary Rationale
A ddition al Rationale
Better define horizontal gradient extent towards the north end (cores
Define horizontal extent - north to the north do not tag bottom).
end
Better define horizontal towards the navigational channel. C600 does
not tag bottom.
Define vertical extent, unbounded to 10 ft bgs
Define vertical extent, reoccupy C 011-2 which remains unbounded to 10 feet bgs with a concentration of 8,200 gg/kg PCB. Samples in proximity (C 011-1, RB13, and C602) are all unbounded.
Define vertical extent, reoccupy C019-1 which remains unbounded in
X
Define vertical extent, unbounded to 10 ft bgs
vertical direction with a concentration of 1,100 pg/kg PCB; sam ples in proximity (C 019-2, LW M C 1, and C604) are all unbounded.
5
X
RM 2.75E
Blob
6
X
RM 3.5E
Blob
7
X
8
X
9
X
10
RM 3.8E
Slip
11
X
12
X
13
RM 4.4W
Blob
14
X
RM 4.5E
Slip
-
RM 4.51 E
Slip
15
RM 4.52E
Slip
-
16
X
RM 5 to 6
Blobs
17
X
18
19
RM 5 to 6W
Shallow Blobs
20
Define horizontal extent - Better define the horizontal and vertical extent, previously no cores
southeast end
that tag bottom within 250 feet.
No existing core in the dredge No existing core in the dredge footprint. Nearby core C 061, C613, and
footprint
C614 are vertically unbounded.
No existing core in the dredge No existing core in the dredge footprint. Nearby core C 061, C613, and
footprint
C614 are vertically unbounded.
Define horizontal extent
Define horizontal extent/improve concentration gradient. Spacing between cores +400 feet.
Define Shallow extent.
Define vertical extent, LWMC3 unconfined vertically with a
X
Define vertical extent in Alt I concentration of TPCB at 5,000gg/kg for the entire core depth of 10
dredge footprint
feet bgs.
Define horizontal extent n
Define horizontal extent/improve concentration gradient. Spacing between cores +300 feet.
Closest sample SED14, is unconfined vertically. Sample approxim ately 3 ft bgs with a concentration of 1,100 gg/kg. Define horizontal extent between cap and dredge.
Reoccupy C622 w hich is vertically unbounded, core w ent down -1 5 '
X
Define vertical extent.
bgs with a PAH Concentration of -1 5 0 ,0 0 0 gg/kg.
Define horizontal extent in shallow area
Define Horizontal extent in shallow area. Closest core is unbounded C626. Could move sample slightly north into proposed F Mod dredge area that contains no core samples.
No cores needed, plenty of data and all shallow exceedances, Alt I dredge
Reoccupy HC-S-42 w hich is vertically unbounded, core w ent to - 5
X
Define vertical extent
feet bgs with a PAH concentration of 220,000 gg/kg. Will also help
define horizontal extent in shallow area.
No cores needed, plenty of data and all shallow exceedances, Alt I dredge
Define vertical/horizontal extent
Define vertical/horizontal extent with new cores; some new cores collected in 2014 with good coverage at depth.
Reoccupy C136 w hich is vertically unbounded, core w ent down -1 5
X
Define vertical extent
feet bgs with a PAH concentration of 80,000 gg/kg. No other core in
existing dredge footprint.
Reoccupy C142 w hich is vertically unbounded, core w ent down -1 0
X
Define vertical extent
feet bgs with a PAH concentration of 240,000 gg/kg.
Reoccupy C147 w hich is vertically unbounded, core w ent down -1 5
X
Define vertical extent
feet bgs with a PAH concentration of 250,000 gg/kg.
Reoccupy C179 w hich is vertically unbounded, core w ent down -1 0
feet bgs with a PAH concentration of 90,000 gg/kg. Next to C182,
21
X
Define vertical extent
also unbounded vertically with a concentration of -2 5,000 gg/kg.
22
X
RM 5.5E
S liv e r
23
X
24
X
No existing cores in dredge footprint
No existing cores in dredge footprint, 1 core nearby vertically bounded at 10 feet below ground surface; Alt I dredge/cap.
No existing cores in dredge footprint, 1 core nearby vertically bounded at 10 feet below ground surface; Alt I dredge/cap
No existing cores in dredge footprint, 1 core nearby vertically bounded at 10 feet below ground surface; Alt I dredge/cap
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Tiers 8&9
ED 002061 00115104-00010
Table 7b. Rationale for Sediment Core Locations for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Alternative F Mod
New'
A ctive Footprint Atea C ore Core
D escription
S ta tio n
25
X
26
X
Shallow
RM 6W
Long
Band / Inlet 27
X
28 29
Re Occupy
O ld S ta tio n
Sum m ary Rationale
A ddition al Rationale
Define vertical extent
Horizontally define navigational channel. CS003 was less than 1 foot bgs, with a concentration of 34,800 pg/kg.
Horizontally define navigational channel extent. No core currently within proposed dredge footprint.
Horizontal extent along nav Better define concentration gradient. Closest cores -2 5 0 feet away is
channel, define vertical extent DGS-08C (in navigational channel, concentration of 1,800,000 pg/kg).
for proximal cores
Downriver of LW M C 11, unbounded sample with a concentration of
8,400,000 pg/kg, and DGS-19SC with a concentration of 4,500,000
MQ/kg-
Reoccupy LM W C11 which is vertically unbounded, core w ent down
X
Define vertical extent
-1 0 feet bgs with 8,400,000 pg/kg. Next to GS-B5 also unbounded
vertically with concentrations of 1,100,000 pg/kg.
Reoccupy C244 w hich is vertically unbounded, core w ent down -1 0
X
Define vertical extent
feet bgs 250 pg/kg PCB. Southern edge of proposed dredge footprint.
30
X
RM 6.5E
Blob
31
X
32
X
33
X
34
X
RM7W
Blob
35
X
Define horizontal extent
No historical cores collected within Alternative F Mod footprint.
Define vertical/horizontal extent in the low spot near
C291
Better define horizontal gradient. Distance between cores is greater than 300 feet. Two of the four closest cores are unbounded vertically with concentrations of 250 pg/kg and 750 pg/kg PCB.
Define vertical extent
Define vertical extent in proposed dredge area around C 311, DGS37SC, SD072, and C316; these cores are all unbounded vertically and have PAH concentrations >50,000 pg/kg and as high as 570,000 MQ/kg.
Define horizontal extent of proposed dredge area around WB-66,
Define vertical and horizontal which is unbounded vertically and horizontally and has a 2,3,7,8-
extent
TCDD concentrations as high as 0.0015 pg/kg.
Define vertical extent Define vertical extent
Define vertical extent in proposed dredge area around C679, which is unbounded vertically and has a 2,3,7,8-TCDD concentration 0.003 pg/kg.
Define vertical extent in proposed dredge area around LWMC14, which is unbounded vertically and has a 2,3,7,8-TCDD concentration 0.002 pg/kg; surrounding unbounded samples are WB-37, W B-41, and SD092 with concentrations as high as 0.007 pg/kg.
RM 7.5W Swan Island
36
X
37
X
38
39
X
40
X
41
42
X
43
X
44
X
45
X
Define vertical/horizontal extent
Define vertical/ horizontal extent
Define vertical and horizontal extent of proposed dredge area south of WB-34. W B-34 is unbounded vertically and has a 2,3,7,8-TCDD concentration 0.001 pg/kg.
Define vertical and horizontal extent near C688. C688 is unbounded vertically and has a 1,2,3,7,8-PeCDD concentration >0.001 pg/kg.
Reoccupy C690. C690 had concentrations greater than 0.001 of
X
Define vertical extent
2,3,7,8-TCDD and 1,2,3,78-PeCDD is 0.007 pg/kg, and vertical extent
was unbounded to 15 ft below mudline surface.
No existing core in active footprint
Define vertical extent
Inside proposed dredge area has no core samples.
Sample near S D133 to define vertical extent in proposed dredge area. SD133 was unbounded vertically and had a PCB concentration of 2,400 pg/kg .
X
Define vertical extent
Define vertical extent
Help determine vertical extent and better cover horizontal area which is over 250 feet from next sample location.
Define vertical extent / horizontal gradient
Define vertical extent between C702 and C703 (cores are over 400 feet apart) and C702 is unbounded with a max concentrations of 250 pg/kg of PCB.
Define horizontal extent
Define horizontal and vertical extent between C364 and PSY20C (cores are over 600 feet apart) and have max PCB concentration of >250 pg/kg and 2,300 pg/kg respectively.
Define vertical extent
Define vertical extent between C372 and PSY18C (cores are over 400 feet apart) and have PCB concentrations of -2 0 0 pg/kg and >500 pg/kg respectively. C372 is also unbounded vertically.
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Tiers 8&9
ED 002061 00115104-00011
Table 7b. Rationale for Sediment Core Locations for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Alternative F Mod
New'
A ctive Footprint Atea C ore Core
D escription
S ta tio n
Re Occupy
O ld S ta tio n
46
X
47
X
48
X
Sum m ary Rationale
A ddition al Rationale
Define vertical extent
Define vertical/horizontal extent
Refine horizontal gradient
Better define vertical gradient between C379 and PSY11C (cores are over 600 feet apart) and have max PCB concentration of >750 pg/kg and >7.5 pg/kg respectively.
Better define vertical gradient near C397. C397 is vertically unbounded and had a max PCB concentration of >500 pg/kg.
Better define vertical gradient between C405 and SD141 (cores are over 300 feet apart) and both are vertically unbounded. The max concentration between the two cores was >500 pg/kg of PCB.
49
50
X
RM 8 to 8.75W
long band
51
X
52
X
RM 9.8W
RM11E Shallow Area Cores
53
X
54
X
55
X
56
57
X
58 59
60
X
30
X
Define vertical extent in proposed dredge area around C450, which is
X
Unbounded to 10 ft below unbounded vertically and has a PCB concentration 2,200 pg/kg. ground surface
Define vertical and horizontal extent of proposed dredge area north collect bank sample near C431 east of C 431, edge of dredge area over 300 feet from C431 core.
Define vertical extent Define vertical extent
Define shallow horizontal extent west of C455. C455 has a max PCB concentration of 6,000 pg/kg.
Define vertical extent in proposed dredge area around LWMC19, which is unbounded vertically and has a PCB concentration 2,200pg/kg. No proposed cores in this area or vertically bounded cores in this dredge area.
Define vertical and horizontal extents in proposed dredge area north
east of C 738 and C739; both cores are vertically and horizontally
Cores are vertically
unbounded with max concentrations >500 pg/kg of PCB.
unbounded, but there is 10 ft of
clean overburden; horizontal
extent
Better define vertical gradient between C739 and LWMC24. Both
cores are unbounded, with max concentrations greater than 500 pg/kg
of PCB.
Define extent
Define vertical and horizontal extents in proposed dredge area w est of LMWC24. LW MC24 is vertically unbounded with max concentration >750 pg/kg of PCB.
Define horizontal extent south of LMWC24 w hich is approxim ately 400
X
Define vertical/ horizontal extent
feet from the shoreline and is unbounded vertically with a max concentration >750 pg/kg of PCB.
Define horizontal extent
Define vertical and horizontal extent within new dredge footprint. Nearby core sam ples C007 or UC01 were shallow cores (less than a couple feet) and UC01 w as unbounded with a PCB concentration close to 500 pg/kg.
Reoccupy C003. C003 had a max PCB concentration close to 1,000
X
Define vertical extent
pg/kg and was vertically unbounded.
Reoccupy C023. C023 had a max PCB concentration of 4,300 pg/kg
X
Define vertical extent
and was vertically unbounded.
Define horizontal/vertical extent
Define horizontal and vertical extents between WR-CD-40 and C778. Cores are over 300 feet apart and W R-C D -40 is unbounded vertically with a PCB concentration >7.5 pg/kg.
Define areas
No existing cores in these areas
Abbreviations: bgs - below ground surface; bml - below mudline; COC - contam inant of concern; PAH - polycyclic arom atic hydrocarbons
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ED 002061 00115104-00012
Table 8. Data Interpretation and Analysis Plan Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
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ED 002061 00115104-00013
