Document 0qGandG8o4qM5E4nVGe254G0x
Table 1. Overview of Pre-Remedial Design Investigation Studies
Portland Harbor Pre-Remedial Design Investigation W ork Plan Portland, OR
Added text in RED and callouts Deleted text in Strikethrough
PDi 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
General 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 o n ly (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 increm ents, as practical
Focused COCs o n ly (1), plus TOC and grain size
Year long study of acoustic tracking of SMB fish movements
Upriver
Downtown/Upstfeam Reach: Sediment, Surface Water, Tissue, and Trap Sampling to assess incoming loads
Background Porewater Sampling
over-year4ong-pefied
60 sediment samples collected between RM 11.8 to RM 28.4 targeting fine
grained sediment (30 samples Downtown Reach, 30 samples Upstream
Reach)
Upriver
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 PCBs, 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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ED 002061 00115103-00001
Table 2. Focused COCs with Remedial Action Levels Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Table 21. Sedim ent RALs an d PT W Threshold* to r Selected Rem edy
C ontam inants
Site W ide RAJLsW
Focused t OC s PCBs Total PAM s' 4-1 2 T T S-K DO Id.b.'T b-lva)!) 2,3,4 ,7 ,8-PeCDF I >1 >` Additional Contam inants
' - -M
: i i ' o il c P U K i l h P 1 q! k'hloiohen/cne Naphthalene
*7 N 13,000 i tin:./. 0.0008
0.2 160
NA NA NA NA NA
PTW
N avigation
T hresholds <2> ! C hannel RA Ls
2t*U
i
\ A
0.01
0.01
0.2
i
0.6
0.04
:
I0b,0o0 .
> 140,000 |
V. >
1,000 1~i 1i1:1 <iO02 0.003
I
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 tines!u Ids are based on higiih. toxic PTW values (10^ risk) except chlorobenzene and naphthalene winch are threshold values t'oi not reliably contained PTW,
Abbreviations: BaP Eq bertzo(a)pyretie equivalent ePAH -carcinogenic polycyclic aromatic hydrocarbon COC - Contaminant of concern DDx --dichlorodiphetiykliehloroethane > dichlorodipheiiyldichloroethaie +
dichlorodipheayltrichlofoethane FMD future maintenance dredge HxCDF - hexadilorodibenzofuran NA not applicable PAH - polycyclic aromatic hydrocarbon PCB - polychlorinated biphenyl PeCDD - penlach hirodihenzo-p-dioxin PeCDF - pentacblot otliben^ofuran PTW - principal threat waste RAL - remedial action level TCDD..tetrachlorodibenzo-pdioxin 1 CJ )1 tetrachiorodibcn2.ofuran pg/kg microgram per kilogram > greater than
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ED 002061 00115103-00002
Table 3. Sum m ary 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
C ontam inant
A ld rin
A rs e n ic
Senren
8 EH 9
C adm ium
C h io rd a n e s
C b lo ro b e n zo n e
Chrom ium
Cosgar
Cyanide
00s
ODD
DOE
DOT
l.i-D S chiom eihi.m e
<is--1.2-0:< :h!o toeiite ne
D ieldfin
^.A-Dchlorophonoxy^cetfo add
E th y lb e n z e n e
Hesavkloroheucem s
U rid a n s
le a d
Manganese fViCER
M ercury
P entachictopheno!
P e rc h lo ra te
PSDEs PCBs
PAH
cbAHs {B&P eg)
A c e n a p h th e n e
A c e n a p h th y le n e
A n th ra ce n e
BenaoSaJersthrecene
B entoiaipyrene
B e n z o {b )fiu o ra n th & n e
8enz(g,h,))pefytene
...
. .
Chrysene DI bera.f a. h anthracene R cotaot bene Fiuorana In d e n o ! 1,3,3 ~c,d } pyrene 2-M athvfnaphthalene
|
Surface W a te r (1}
U nit
Cone.
Basts
b g /t 0.00000077
A
SA
s.o ia
A
b g /l
0,2
A
b g /t 0.000081
A
b g /k
too
A
bg/L
3,74
A
b g /k
0.01
R
bg/k 0.000031
A
bg/k 0,000018
bg/k 0,000022
A
m il
7.3
R
m il 0.000030
A
b g /k
lb
9
b g /t
0.03
A
bg/k 0,0000064
A
b g /k
0.00013
A
Q ra u n d w a te r (.2)
R iver Bank S oil/S edim e nt f3)
fis h Tissue [4)
ISn it
Cone.
Basis
U nit
Cane.
Basis Unit:
Cone. Basts
b g /l h g /i
bg/L
bg/k bg/k b g /l bg/k
0,018 0.44
0,081
04 11 2/74 4
...w a s ....
A
m g/kg
A
A/R/S)
bg/kig m g/kg
....B l/ k g .... _R
A/R ...^ 8 A
2 3
13S 0.51 3.4
33>3
S bg/kg
0.06
9
B mg./kg 0.062
9.
R gg/kg
72
9
R
R bg/kg
3
9
R
b g 'k
0,001
m i/im
S .l
H bg/kg
3
R
bg/k 0.000031
A ....m iM ....
114
R.
bg/k 0.000018
A .... m T s ...
226
n.
bg/k 0.000022
A ....^
....
246
9:
p g /l
7
A
b g /l
>3.9
b g /k
70
b g /k
7.3
bg/L b g /k
0,54 430
A
.... " W l il ....
0.07
9. b g / k l
0.06
R
A
n
.... ...............
bg/kg
0,g
R
b/f<g
5
R.
m ....w g /k g ...
1J6
R
9,
b g /l b g /k bg/k
bg/k
0.0,3 IS
0.014
0,00012 23
m g/kg A A
CROSS
....M M ....
itg/kg
A
bg/kg
R
9 14000 12(7)
R m g/kg 0.031
A
bg/kg
2,S
9
m liii.
26
9
B bg/kg. 0.25 (61
R
R bg/k.8
7.1
R
bg/k
0.73
R
b g /k
0,0012
A bg/k
0,0012
A
b g /l
0,00012
A bg/k
0.00012
A
bg/k
0,0012
A bg/k
0.0012
A
iV k
0.0013
A bg/l
0,0013
A
m il
idX V *
A ay/
0.0013
A
m il
0,00012
A, b g /k
0.00012
A
b g /l
0.0013
A b g /i
0.0012
A
b g /k
22
9
byrnne
Dios us/Curaes ,3,7,8-TCDD eg) 3,2,3,4,7.S-Hs<CDF 1,2,3,7,8-PeCOO 2 ,3 ,4 ,7 ,g -9 C 0 F 2,3 ,7 ,8 -T C D f 2,3,?,SbTDD T e t ra c h lo ro e th e n e
b g /k 0.0Q00000G5 A b g /k
0.24
bg/kg
0.0004
8 ig/..
9
bg/kg
0.0002
8 bg-'> , 0 s , / ^
9
....9 8 /^ 8 ...
0.01X13
8 .:.g(... . ' 'f * "i
R
b g /kg 0.0004 065 8 R bb- -,
'f
R
....8 8 /^ 8 .... 0,0 002
B b f ^ g c 0 0 0 'OO R
A
Toluene
9.6
R
TRH-Diesel
... 8 / kg....
91
9.
TPH-Diesel C10-C1.2 A lip h a tic )
ktg/k
2.6
R
T rib u ty ltiP
b g /k
0,063
A
bg/kg
3080
9
T rlc h k tro e th e n e 2,4,5 -Tric h lo ro phetto!
b /k
0.6
A
bgA
50
A
Vanadium
b g /l
20
R
Vsrtyl C o lc n d e
a y /l
0.022
A
Xyicnes Zinc
Nates:
b g /t
36.5
b g /i R 08/ L
33 36..5
R 9 ...
439
R
I 1} Surface W a te r Cleanup levels - CAOr 3 end 7
:7 : G ro u n d w a te r C leanup Levels - RA-Os 4 end S
(31 S e d im e n t C leanup Levels - RAOs I a n d 5
(45 Fish Tissue T argets - RAOs 2 and 6
( AJP. in d ica te s th a t th e AFiARs-based n u m b e r and th e risk-based n u m b e r are th e sam e. (6)The tissue ta rg e t is a risk-based n u m b e r and does n o t re p re s e n t b a ckgrou nd levels. Additional d a ta w ill be collected to determ ine ba ckgrou nd fish
tissue concentrations fo r ACSs d u rin g design and c o n s tru c tio n o f th e Selected Rem edy, IT) The cle a n u p level for cPAHs of 12 p g /kg to based on d ire c t c o n ta c t w ith s e d im e n t and 3 ap plica b le to n e a rsh o re se d im e n t. The cle a n u p level ap plicable
to sed im ents in th e na v ig a tio n ch a n n e l is 3,9 50 b g /k g and is based o n h u m an c o n s u m p tio n o f clam s.
A b b re v ia tio n s :
A- .AFIAR-based n u m b e r
&HAR - a p plicable <3f rtdv<ml: -ml a p p ro p ria te rpuir**m em :
S - iBackg u ( 5 b
number
B E H R -h U f <= <,
3phth,aia;tS5
S&P ' b i { n % < m yqmvss-n?
- carbon Cone - concentration
cPAM - carcin oge nic polycyclic a ro m a tic hyd ro ca rb o n
DDD - dicbiorodipheriyibichioroethane
DDE - d ie rb o ro d ip h e n y id ie b iio ro s th e n e
DDT - d ic h io ro d ip h e n yltrich io ro e th a n e
DDx - DDD + DDE + DDT
HxCDE 1 ,2 ,3,? ,8,^ b x a c h io ro d ib e n a o f ra n
MCPP - 3-{4~chioro~2-n3&thyipbeno>iy)propano::C a d d
m$/k$ - m illigram per kilogram
PAH - polycyclic, a ro m a tic h yd ro c a rb o n
PBDE - p o ily b ro m in a ts d d ip h e n y l * t l w
PCS p o iy c b k in n a te d bip h e n yl
PeCDD * p e n ta c h io ro d ib e n e o -p -d fo x in
PeCDE - pe rP sch io ro d sb e n zo fo 'o n
R - rDk'-bassd num ber
RAO - rem edial actio n ob je ctive
TCDD - 2,3}?,& -t?r3chi rodibenzO "P-d{axm
TC.DF - te tra c h lo ro d ib e n z o fu ra o s
TPH - to ta l p e tro le u m hydrocarbons
pg/kg - m icrogram per kilogram
jig /L - m icrogram per lite r
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Table 4. Project Goals for Pre-Remedial Design Investigation Scope of Work
Portland Harbor Pre-Remedial Design Investigation W ork Plan Portland, OR
#
Project Goals
Spatial Scale
Media
Questions to Answer
Obtain SMA baseline
1 characterization data adequate SMA specific
to refine the remedial footprint for allocation purposes
Discrete sediment grabs (0 to 30 cm), bathymetry, sediment cores
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?
Establish current baseline
2
conditions (SWACs, htrmae C frealth-fisk-') to evaluate future remedy performance and
S
f
f$ite-wide, segments,
progress towards RAOs
rolling RIVS
Surface sediment, fish tissue (SMB), surface water
What are concentrations of COCs prior to remedial activities?
Do results support refinement of the remedial footprint?
What are current baseline risks?
3
Evaluate recovery chanqes within the Site
Site-wide, segments
Surface sediment, fish tissue (SMB), surface water
Are Site conditions improving since the Rl/F?
datasets
Do improvements support the narrative of MNR?
What are upstream concentrations of select COCs
Surface sediment,
in sediment and fish tissue, and have they changed
since the FS? Ri/FS datasets
4
Upetroam-RM fish tissue (SMB),
11.8 to 28.4 surface water;
What are background concentrations of naturally-
Upriver and Downtown Reac l
porewater
occurring 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; FWM--food-web-modeF FS - feasibility study; RAt=--re medial-astk>e-tevel-;- ROD - Record of Decision; SWAC - surface weighted average concentrations; SMB - small mouth bass
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Tiers 8&9
ED 002061 00115103-00004
Table 5. Data Use Objectives for Pre-Remedial Design Investigation Studies
Portland Harbor Pre-Remedial Design Investigation Work Plan
Portland, OR
Delete column
and rolling RM
exceedances
Proposed Scope Item
Da ii Use Objective (DUO)
Delete column.
Update SWAC (site and 9 segment) Update Baseline Conditions
Recovery Changes Since RI/FS Active Footprint/ RAL Remedial Technology
Recontamination Potential Support Allocation
Institutional Controls Future Compliance
# Task
l i <i
s
Purpose
CP
u
Ii l ; t)
i
R e fin e
1 i Cl :
i
.M..i*.4i1 c
Pre-Design Field Investigation Studies
Site-wide bathymetry survey Surface sediment sampling Fish tissue sampling Surface water sampling Sediment cores Fish acoustic tracking study Gameraswveyof-anglefs Porewater sampling Technical Analyses /Reporting
Evaluate current conditions
footprint recovery/bkgrd recovery/bkgrd recovery/bkgrd
footprint fish home range
riskAG bkgrd
X
X CX X
X X X X )f X X
X
X X /\ f\
X
X X /\ '\
X
X
XX
X
)f
X
X
XX
footprint
X X X X /\ t\ X X
X
X )'
X
/\ ' X X
/N'K
X
X
)'
X
\/'V X
X /N'K
X
X /\ 'K
X
Evaluate recovery changes
Evaluate upstream levels
Refine active footprint Evaluate fish home ranges and scale of SWAC estimate
CSM based on Refine humaa-healtn-eensumptren risks-with current conditions
Data Interpretation Report
recovery recovery
X
X
X
X
X
/N'K
footprint
XX
XX
X
X
fish home range
XX
;c
;'
X
recovery/fisk
X
footprint
all
XX
X /V'\ X X; XX
X /N'K X X X ;' X X
Abbreviations:
1C - institutional controls; bkgrd - background; CSM - conceptual site model; SWAC - surface weighted average concentration
RM - river mile; RAL - remedial action level
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Tiers 8&9
ED 002061 00115103-00005
Table 6. Summary of Pre-Remedial Design Investigation Media, Sample Counts, and Analyses for Sediment, Tissue, and Surface Water Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Medi j
Location Count
Sample IDs
Surface Sediment Unbiased
428 - within Site; PDI-SS-BL-01 to 60 - D/U Reach PDI-SS-BL-428
Additional Surface Sediment -
SMA
PDI-SS-SMA-01 to 21 2-within Site PDI-SS-SMA-212
Subsurface Sediment
90 Cores - within Site
PDI-SC-01 to PDI-SC-90
Suspended Sediment (Sediment
Traps)
4 locations (12 samples over 3
rounds)
PDI-ST-R#-01 to PDI-ST-R#-04
Parameter Aldrin Arsenic BEHP
Cadmium Chlordanes
Copper DDx DDD DDE DDT
Dieldrin Lindane
Lead Mercury PCB congeners (7)
PAHs cPAHs (BaP eq) 1,2,3,4,7,8-HxCDF 1,2,3,7,8-PeCDD 2,3,4,7,8-PeCDF
2,3,7,8-TCDF 2,3,7,8-TCDD
PCDD/Fs TPH-Diese! Tributyltin
Zinc
TOC
Grain Size
DDx
PCB congeners a) 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 a)
PAHs cPAHs (BaP eq) 1,2,3,4,7,8-HxCDF 1,2,3,7,8-PeCDD 2,3,4,7,8-PeCDF
2,3,7,8-TCDF 2,3,7,8-TCDD
PCDD/Fs TPH-Diesel Tributyltin
Zinc
TOC
Grain Size
Analyte List
Met ho d 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 Plumb 1981/EPA 9060 PSEP
8081B
1668 8270DSIM
1613B Plumb 1981/EPA
9060 PSEP 8082A 1613 8081 8270DSIM Plumb 1981/EPA 9060 PSEP 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 Plumb 1981/EPA 9060 PSEP
MOL ` 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
0.529
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
Umts
gg/kg mg/kg gg/kg mg/kg gg/kg mg/kg gg/kg gg/kg gg/kg gg/kg gg/kg gg/kg mg/kg mg/kg ng/kg
gg/kg gg/kg pg/g pg/g pg/g pg/g pg/g pg/g mg/kg gg/kg mg/kg
%
%
gg/kg
ng/kg gg/kg pg/g
%
% gg/kg pg/g gg/kg gg/kg
%
% gg/kg mg/kg gg/kg mg/kg gg/kg mg/kg gg/kg gg/kg gg/kg gg/kg gg/kg gg/kg mg/kg mg/kg ng/kg gg/kg gg/kg pg/g pg/g pg/g pg/g pg/g pg/g mg/kg gg/kg mg/kg
%
%
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Tiers 8&9
ED 002061 00115103-00006
Table 6. Summary of Pre-Remedial Design Investigation Media, Sample Counts, and Analyses for Sediment, Tissue, and Surface Water Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
M edia
Fish Tissue (SMB, whole
body)
Surface Water(6)
Porewater
Location C ount
S a m p le Ds
95 - within Site; PDi-SMB-BL-01 to 40 - D/U Reach PDI-SMB-BL-135
7 transects (21 samples over 3
PDi-SW-R#-01 to PDI-SW-R#-07
rounds)
8
PDI-PW-01 to PDI-PW-08
Pa: am ete:
Aldrin Arsenic BEHP Chlordanes
DDx Dieldrin Hexachlorobenzene Mercury Pentachlorophenol PBDEs PCB congeners a) 1,2,3,4,7,8-HxCDF 1,2,3,7,8-PeCDD 2,3,4,7,8-PeCDF 2,3,7,8-TCDF 2,3,7,8-TCDD PCDD/Fs
Lipids
Aldrin Arsenic BEHP Chlordanes Chromium Copper
DDx DDD DDE DDT Ethylbenzene Hexa ch Iorobe nze ne MCPP Pentachlorophenol PCBs cPAHs (BaP eq)(7)
Benzo(a)anthracene
Benzo(a)pyrene
Benzo(b)fluoranthene
Benzo(k)fluoranthene
Chrysene
Dibenz(a,h)anthracene
lndeno(1,2,3-c,d)pyrene
Naphthalene
Dioxins/Furans (2,3,7,8-TCDD eq)
Tributyltin Zinc TSS
Turbidity, pH, flow rate velocity, eH, DO Arsenic Manganese redox
A n a ly te Lis?
M ethod
MDL
8081B
0.5
6020B
0.0203
8270D
11.2
8081B
0.0194
8081B
0.5
8081B
0.5
8270D
5
7471A
0.00739
8270D
63.1
1614
50
1668
2
1613B
5
1613B
5
1613B
5
1613B
1
1613B
1
1613B
5
DCM extraction
gravimetric (NOAA,
1.5
1993)
AXYS Method
0.0048
6020A
0.22
8270C
1.6
AXYS Method
0.0048
6020A
0.378
6020A
1.04
AXYS Method
0.003
AXYS Method
0.003
AXYS Method
0.0024
AXYS Method
0.0026
8260C
0.252
8270D
0.104
81515A
290
8270D
0.271
AXYS Method
0.0048-0.0608
AXYS Method or 8270SIM
0.2818
AXYS Method or 8270SIM
0.1234
AXYS Method or 8270SIM
0.0588
AXYS Method or 8270SIM
0.2818
AXYS Method or 8270SIM
0.2818
AXYS Method or 8270SIM
0.1334
AXYS Method or 8270SIM
0.1324
AXYS Method or 8270SIM
0.1264
AXYS Method or 8270SIM
0.1622
AXYS Method
0.00228
OrganoTin 6020A 2540D
0.045 2.65 NA
field parameter
NA
200.7 200.7 field parameter
0.05 0.264
--
Um ts
pg/kg-wet mg/kg-wet pg/kg-wet pg/kg-wet pg/kg-wet pg/kg-wet pg/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
%
ng/L pg/L gg/L ng/L pg/L gg/L ng/L ng/L ng/L ng/L gg/L gg/L gg/L gg/L pg/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
ng/L
pg/L
gg/L gg/L NA
NA
gg/L gg/L
...
Notes: (1) Surface sediment MDLsfrom EPA Rl (2016) Table 5-2.1; PCB 1668 MDL from Vista Analytical. (2) Subsurface sediment MDLs from EPA Rl (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-remedia! Design Investigation. PSEP -
Puget Sound Estuary Protocol; PW - porewater: TOC - total organic carbon; D/U - Downtown Up&tr-eam Reach; SC - subsurface core;
SMB - small mouth bass; SS - surface grab; SW - surface water
/U p fiV C r
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Table 7a. Sediment Cores for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Alternative F Mod Footprint Atea / Description
Core #
New Core Station
Re Occupy
Old Stanon
Old Station
Core Depth feet bgs)
#of Samples
Estimated Vertical Extent
of C o n ta m in a tio n
(ft blm)
Focus COCs Above RALs at
Any Deptii
Proposed Deep Subsurface Core Locations
RM 2E
Evraz
RM 2.75E RM 3.5E
Blob Blob
RM 3.8E
Slip
RM 4.4W RM 4.5E
Blob Slip
1
X
12
6
2
X
12
6
3
X
C011-2
12
2
>8.9
PCBs, DDx
4
X
C019-1
12
2
5
X
12
6
6
X
12
6
>8.3
PCBs
7
X
15
8
>11.2
PCBs, DDx, Dioxin/Furans
8
X
15
8
9
X
15
8
10
X
LWMC3
15
2
>12.6
PCBs
11
X
15
8
12
X
15
8
13
X
C626
15
2
14
X
15
8
>14.0
PAHs
No cores needed, plenty of data and all shallow exceedances, Alt F Mod
-
dredge
PCBs
RM 4.51 E
Slip
15
X
HC-S-42
15
2
>12.9
PAH
RM4.52E
Slip
No cores needed, plenty of data and all shallow exceec ances, Alt F Mod
-
dredqe
PCBs, PAHs, DDx
RM 5 to 6
Blobs
16
X
17
X
15
8
15
8
>11.5
PAHs
18
X
C136
20
2
Shallow
19
RM 5 to 6W
Blobs
20
X
C142
20
2
X
C147
20
2
>16.5
PAHs, PCBs, DDx, Dioxin/Furans
21
X
C179
20
2
22
X
RM 5.5E
Sliver
23
X
24
X
15
8
15
8
15
8
>10.9
PCBs, PAHs, Dioxin/Furans, DDx
25
X
15
8
Shallow
26
X
15
8
RM 6W Long Band
/ Inlet
27
X
15
8
28
X
LWMC11
15
2
>12.8
PAHs, DDx
29
X
C244
15
2
RM 6.5E
Blob
30
X
15
8
>10.0
PCBs, PAHs, DDx
31
X
15
8
32
X
15
8
RM7W
33
X
Blob
34
X
35
X
15
8
15
8
15
8
>14.5
PCBs, DDx, Dioxin/Furans
36
X
15
8
RM 7.5W
37
X
15
8
38
X
C690
20
2
39
X
15
8
>15.8
PCBs, DDx, Dioxin/Furans
40
X
10
8
41
X
C421
10
2
42
X
10
8
43
X
10
8
Swan Island
44
X
10
8
>7.9
PCBs
45
X
10
8
46
X
10
8
47
X
10
8
48
X
10
8
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Tiers 8&9
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Table 7a. Sediment Cores for Pre-Design Studies Portland Harbor Pre-Remedial Design investigation Work Plan Portland, OR
Alternative F Mod Footprint Atea / Description
Core #
New Core Station
Re Occupy
Old Station
Old Station
Cote Depth feet bgs)
49
RM 8 to
50
X
long band
8.75W
51
X
52
X
53
X
RM 9.8W
54
X
55
X
56
57
X
58 RM11E
59
60
X
X
C450
10
20
20
20
15
15
15
X
LWMC24
15
15
X
C003
15
X
C023
15
15
Proposed Nearshore- Shallow Area Coro Locations
B-1
X
6
RM 2E
Evraz
B-2
X
6
RM 3.5E
Blob
B-3
X
6
B-4
X
6
RM 3.8E
Slip
B-5
X
6
RM 3.9E
Blob
B-6
X
6
B-7
X
6
RM 4W
Blob
B-8
X
6
RM 4.52E
Slip
B-9
X
6
RM 4.8W
Blob
B-10
X
6
#of Samples
2 8 8 8 8 8 2 2 8 2 2 2
3 3
3
3 3 3 3 3 3
3
Estimated Vertical Extent
of C o n ta m in a tio n
(ft bint)
>8.0
>16.2
Focus COCs Above RALs at
Any Depth
PCBs, DDx, Dioxin/Furans
>12.1
PCBs, DDx, Dioxin/Furans
>10
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
Tota! Deep Cores
43
17
Total # oi Nearshore Cores
30
s o f QA OC Samples
Total of C otes'Sam pies
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
'``*8
40 ^
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
RGBs
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: BLM - below mudline; COC - contaminant of concern; D/F - dioxins/furans; PAH - polycyclic aromatic hydrocarbons
BML
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Table 7b. Rationale for Sediment Core Locations for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
A lternative F Mod A ctive F o o tp rin t Area / Core
# D e s c rip tio n
1 2
3
RM 2E
Evraz
4
New Core S tation
X
X
Re Occupy
O ld S ta tio n
X
Sum m ary R ationale
A ddition al R ationale
Better define horizontal gradient extent towards the north end (cores to
Define horizontal extent - north the north do not tag bottom).
end
Better define horizontal towards the navigational channel. C600 does
not tag bottom.
Define vertical extent, reoccupy C 011-2 which remains unbounded to
Define vertical extent,
10 feet bgs with a concentration of 8,200 pg/kg PCB. Samples in
unbounded to 10 ft bgs
proximity (C 011-1, RB13, and C602) are all unbounded.
Define vertical extent, reoccupy C019-1 which remains unbounded in
Define vertical extent,
vertical direction with a concentration of 1,100 pg/kg PCB; sam ples in
X
unbounded to 10 ft bgs
proximity (C019-2, LW M C 1, and C604) are all unbounded.
5
X
R M 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
-
RM 5 to 6
Blobs
16
X
17
X
18
19 Shallow RM 5 to 6W
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, C 613, and
footprint
C614 are vertically unbounded.
No existing core in the dredge No existing core in the dredge footprint. Nearby core C 061, C 613, and
footprint
C614 are vertically unbounded.
Define horizontal extent/improve concentration gradient. Spacing
Define horizontal extent
between cores +400 feet. Define Shallow extent.
Define vertical extent, LWMC3 unconfined vertically with a
Define vertical extent in A lt I
X
concentration of TPCB at 5,000pg/kg for the entire core depth of 10
dredge footprint
feet bgs.
Define horizontal extent
Define horizontal extent/improve concentration gradient. Spacing between cores +300 feet.
C losest sam ple SED14, is unconfined vertically. Sample
n
approximately 3 ft bgs with a concentration of 1,100 pg/kg. Define
horizontal extent between cap and dredge.
Reoccupy C622 which is vertically unbounded, core went down ~15'
X
Define vertical extent.
bgs with a PAH Concentration of -150,000 pg/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, A lt I dredge
Reoccupy HC-S-42 which is vertically unbounded, core went to ~5 feet
X
Define vertical extent
bgs with a PAH concentration of 220,000 pg/kg. W ill also help define
horizontal extent in shallow area.
No cores needed, plenty of data and all shallow exceedances, A lt I dredge
Define vertical/horizontal Define vertical/horizontal extent with new cores; some new cores
extent
collected in 2014 with good coverage at depth.
Reoccupy C136 which is vertically unbounded, core went down ~15
X
Define vertical extent
feet bgs with a PAH concentration of 80,000 pg/kg. No other core in
existing dredge footprint.
Reoccupy C142 which is vertically unbounded, core went down ~10
X
Define vertical extent
feet bgs with a PAH concentration of 240,000 pg/kg.
Reoccupy C147 which is vertically unbounded, core went down ~15
X
Define vertical extent
feet bgs with a PAH concentration of 250,000 pg/kg.
Reoccupy C179 which is vertically unbounded, core went down ~10
feet bgs with a PAH concentration of 90,000 pg/kg. Next to C182,
21
X
Define vertical extent
also unbounded vertically with a concentration of -25,000 pg/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 1 0 feet belowground 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
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Table 7b. Rationale for Sediment Core Locations for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
A lternative F Mod A ctive F o o tp rin t Area / Core
# D e s c rip tio n
25
26
Shallow
RM 6W Long Band
/ Inlet
27
28 29
New Core S tation
X X
X
ReOccnpy
O ld S ta tio n
X X
Sum m ary R ationale
A ddition al R ationale
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. C losest cores ~250 feet away is
channel, define vertical extent DGS-08C (in navigational channel, concentration o f 1,800,000 pg/kg).
for proximal cores
Downriver of LW M C 11, unbounded sam ple with a concentration of
8,400,000 pg/kg, and DGS-19SC with a concentration of 4,500,000
pg/kg.
Reoccupy LM W C 11 which is vertically unbounded, core w ent down
Define vertical extent
~10 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 which is vertically unbounded, core went down ~10
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
RM7W
Blob
34
X
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 and horizontal
extent Define vertical extent
Define vertical extent
Define vertical extent in proposed dredge area around C 3 1 1, DGS37SC, SD072, and C316; these cores are all unbounded vertically and have PAH concentrations >50,000 pg/kg and as high as 570,000 pg/kg. Define horizontal extent of proposed dredge area around W B-66, which is unbounded vertically and horizontally and has a 2,3,7,8TCDD concentrations as high as 0.0015 pg/kg. 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/kgDefine vertical extent in proposed dredge area around LW MC14, which is unbounded vertically and has a 2,3,7,8-TCDD concentration 0.002 pg/kg; surrounding unbounded samples are W B-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 W B-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. C 690 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 Inside proposed dredge area has no core samples.
footprint
Sample near SD133 to define vertical extent in proposed dredge area.
Define vertical extent
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 sam ple 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 and vertical extent between C364 and PSY20C
Define horizontal extent
(cores are over 600 feet apart) and have max PCB concentration of >250 pg/kg and 2,300 pg/kg respectively.
Define vertical extent between C372 and PSY18C (cores are over 400
Define vertical extent
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
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Table 7b. Rationale for Sediment Core Locations for Pre-Design Studies Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
A lternative F Mod A ctive F o o tp rin t Area / Core
# D e s c rip tio n
New Core S tation
ReOccnpy
O ld S ta tio n
46
X
47
X
48
X
Sum m ary R ationale
A ddition al R ationale
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 gg/kg and >7.5 gg/kg respectively. Better define vertical gradient near C397. C 397 is vertically unbounded and had a max PCB concentration of >500 gg/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 gg/kg of PCB.
49
50
X
RM 8 to
long band
8.75W
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 gg/kg.
ground surface
collect bank sample near C431
Define vertical and horizontal extent of proposed dredge area north east of C431, edge of dredge area over 300 feet from C431 core.
Define vertical extent
Define shallow horizontal extent west of C455. C455 has a max PCB concentration of 6,000 gg/kg.
Define vertical extent in proposed dredge area around LW MC19,
Define vertical extent
which is unbounded vertically and has a PCB concentration 2,200gg/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 C738 and C739; both cores are vertically and horizontally
Cores are vertically
unbounded with max concentrations >500 gg/kg of PCB.
unbounded, but there is 10 ft
of clean overburden; horizontal
extent
Better define vertical gradient between C739 and LW MC24. Both
cores are unbounded, with max concentrations greater than 500 gg/kg
of PCB.
Define vertical and horizontal extents in proposed dredge area west of
Define extent
LMW C24. LW M C24 is vertically unbounded with max concentration >750 gg/kg of PCB.
Define horizontal extent south of LM W C24 which is approxim ately 400
X
Define vertical/ horizontal feet from the shoreline and is unbounded vertically with a max
extent
concentration >750 gg/kg of PCB.
Define vertical and horizontal extent within new dredge footprint.
Define horizontal extent
Nearby core sam ples C 007 or UC01 were shallow cores (less than a couple feet) and UC01 was unbounded with a PCB concentration
close to 500 gg/kg.
Reoccupy C003. C 003 had a max PCB concentration close to 1,000
X
Define vertical extent
gg/kg and was vertically unbounded.
Reoccupy C023. C023 had a max PCB concentration of 4,300 gg/kg
X
Define vertical extent
and was vertically unbounded.
Define horizontal/vertical extent
Define horizontal and vertical extents between W R-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 gg/kg.
Define areas
No existing cores in these areas
Abbreviations: bgs - below ground surface; bml - below mudline; COC - contaminant of concern; PAH - polycyclic aromatic hydrocarbons
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Tiers 8&9
ED 002061 00115103-00012
Table 8. Data Interpretation and Analysis Plan
Portland Harbor Pre-Remedial Design Investigation Work Plan Portland, OR
Data UtiNzation
Description
Current Conditions and Generate summary tables and maps with the new 2018 data and re-baseline the river for sediment, SMB fish tissue, and surface water for-foGusad^aad
Sediment SWACs for selected-other-GQGs. Generate sediment SWACs on a site-wide and other spatial scales using Theissen Polygons for the 640-sample plan, ajfd the
baseline dataset
statistical mean for both the random 428 and 640 sample plans.
/
Provide plotsfs) of the tissue data over time. Provide surface water data with simple data plots of baseline and previous applicable surface y/ater data.
Compare the new 2018 data to the 2004 dataset for sediment, tissue (2002, 2007 and 2012), and surface water media and empirically evaluate
Concentration Changes Over Time
changes since the Rl: (1) The new sediment SWAC and arithmetic mean of unbiased dataset will be compared to the 2004 data a|fsite-wide and segment-wide scales to look for differences in the last 14 years. (2) Datasets will also be compared to the Downtown/Upriver Area (are the twe populations different, how different, and is site recontamination expected?). (3) Additional surface sediment locations will be re-occupied from 2004,
and these two populations will be compared for changes. N o te : The d a ta p e rm its s ta tis tic a l co m p a ris o n s a t the site -w id e , s e g m e n t-w id e , R M -sca le s, o r
o th e r spatial scales.
Refine the SMA Confirm-the-aotwe-remedial footprint using new data collected during the PDI. SMA delineation activity to evaluate these data, bathymetry, and
applicable historical data will be run through the ROD decision tree to support allocation. Run the new 2018 surface sediment data and bathymetry data
Alt F Mod Active SMA through the ROD decision tree to een#rm the active remedy footprint. The 2018 core data will be combined with RI/FS subsurface coring data to update
Footprint (1)
the conceptual site model understanding of subsurface contamination, collectively these data will also run through the ROD decision tree to Goafirro the
active remedy footprint and dredge Volume estimate. Changes in sediment elevation will be a modifying factor for volume estimates to inforrrifthe 30%
design estimates.
lirefine i
jrefine
Downtown/Upriver Baseline
Background Porewater
Report data separately to EPA by reach (Downtown / Upriver Reach). Evaluate current upriver conditions by SWAC and summary distribution statistics for other media, for future long-term comparative analysis with Site. Generate tables, maps, and summary statistics for all new 2018 data (sediment, SMB tissue, surface water, and sediment traps) as 2018 baseline conditions. These data may be compared to new site data, and gualitatively compared to older downtown/upriver data to evaluate changes and provide a first look at what may be achievable at the site for focused COCs.
Provide porewater data to EPA, provide sufficient data to derive porewater background for metals using the passive porewater samples from the upriver reach or other appropriate background areas (see EPA March 13, 2017 framework).
Fish Tracking and-Gamera Survey Results
Provide fish tracking data to be presented as a tabular spreadsheet deliverable that includes location, tag IDs, and time stamps for each of the tagged
fish. Data processing for data report limited to tabular and graphical outputs showing locations/tag IDs of fish movement (e.g. heat maps). Evaluate the
fish tracking results to evaluate the home range of SMB. Maps, home range estimates, and summary tables will be generated. N o te : re su lts m a y in fo rm
the fish tissue sam pling program and the appropriate scale fo r calculating baseline conditions with resp ect to fish; refine un d e rsta n d in g &f-th
and
re d u c e u n c e rta in ty a b o u t re m e d y e ffe c tiv e n e s s fo r fish tis s u e re c o v e ry a n d in fo rm fish c o n s u m p tio n a d v is o ry u p d a te s .. Gamera--data-w4l-be-proeessed
Data Design for Long-term Monitoring
potentially focusing The PDI Evaluation Report will include an evaluation of the 2017/2018 data for purpose of reducing the list of COCs for future monitoring rounds.
Notes: (1) Pre-Design Core data collection may have limitations for characterizing final SMA footprint delineation. Accordingly, any final decision on the SMA footprint will be pending full
remedial design and confirmation sampling results obtained during remedy implementation.
Abbreviations: COCs - chemicals of concern; RI/FS - remedial investigation/feasibility study; RAO - remedial action objective; ROD - Record of Decision; SWAC - surface weighted average
concentrations; SMB - small mouth bass; CSM - conceptual site model; SMA - sediment management area
DRAFT Confidential
- For Purposes of Settlement Negotiations Only
Sierra Club v. EPA 18cv3472 NDCA
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Tiers 8&9
ED 002061 00115103-00013
