discharging to the LDW - ldwg.org RI/Final_LDW_RI_Map_Folio_4... · 3 . 5 2 . 5 1.5 1.0 5 . 0 4.0 3 .0 2 . 0 Ash Grove Cement Slip 1/Manson Glacier Northwest to Saint-Gobain Glass

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

284

7; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

Elliott Bay

Lake Washington

��5

��90

��5

��99

Renton

UnincorporatedKing County


Tukwila

SeaTac

Burien

City of Seattle

City of Seattle

Map 9-1. Greater LDW drainage basins

Combined sewer service areadischarging to the LDW

Greater LDW surface drainage basin

Diagonal Ave S CSO/SD

Norfolk SD

Slip 4

7th Ave S SD

West side public SDs

Hamm Creek

Central KCIA

South KCIA

Remaining east side public SDs

S 96th St SD

Glacier Bay/SW Kenny SD

Private waterfront drains

Road

Creek

City boundary

LLCWindWardenvironmental ±

0 0.5 1Miles

0 0.5 1Kilometers

Duwamish/Diagonal(EAA 1)

RM 2.2(EAA 2)

Slip 4(EAA 3)

Boeing Plant 2/Jorgensen Forge

(EAA 4)

Terminal 117(EAA 5)

RM 3.8(EAA 6)

Norfolk (EAA 7)

UpperTurningBasin

Slip 1

Slip 2

Slip 3

Slip 4

Slip 6

0.5

5.5

4.5

3.5

2.5

1.5

1.0

5.0

4.0

3.0

2.0

Ash Grove Cement

Slip 1/Manson

Glacier Northwest to Saint-Gobain Glass Company

Glacier Bay

Slip 2 to Slip 3

Slip 3

Slip 4 to Seattle Boiler Works

Central KCIA(same as EAA 6)

Slip 6

UpperTurningBasin

Slip 2

Slip 4

Slip 3

Slip 1

Slip 6

0.5

5.5

4.5

3.5

2.5

1.5

1.0

5.0

4.0

3.0

2.0

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

ap 2

849;

W:\P

roje

cts\

00-0

8-06

_Duw

amis

h_R

I\dat

a\gi

s\P

hase

2 R

I\Sou

rce

Con

trol

\Sec

tion

9

Map 9-2. Early Action Areas (identified in2003) and Ecology's February 2007 sourcecontrol boundaries

Early Action Areas (identified in 2003)

Duwamish/Diagonal (EAA 1)

RM 2.2 (EAA 2)

Slip 4 (EAA 3)

Boeing Plant 2/Jorgensen Forge (EAA 4)

Terminal 117 (EAA 5)

RM 3.8 (EAA 6)

Norfolk (EAA 7)

Road

River mile

Navigation channel

±Scale is the same for each inset map

0 0.25 0.5Miles

0 0.4 0.8Kilometers

February 2007 source control boundaries

Ash Grove Cement

Slip 1/Manson

Glacier Bay

Glacier Northwest to Saint-Gobain Glass Company

Slip 2 to Slip 3

Slip 3


Central KCIA (same as EAA 6)

Slip 6

Road

Navigation channel

River mile

LLCWindWardenvironmental

Source: Windward (2003e) Source: Ecology (2007h)

Slip 1

Slip 2

Kellogg I.

Harbor I.

Slip 3

Slip 4

Slip 6

UpperTurningBasin

Slip 1

Slip 6

Spokane Street to Kellogg Island

Riverside Drive

Restoration areas

Slip 4

Duwamish/Diagonal Way

Glacier Bay

Terminal-115

Slip 2 to Slip 3

Spokane Street to Ash Grove Cement

Terminal-117

Sea King Industrial Park


Seattle Boiler Works to Slip 4

Boeing Developmental Center


Kellogg Island to Lafarge Cement

St. Gobain to Glacier Northwest

King County lease parcels

Trotsky Inlet

Norfolk CSO/SD

Boeing Isaacson/Central KCIA

2.2

5.5

5.3

5.2

5.1

4.94.

8

4.7

4.6

4.5

4.4

4.3

4.2

4.1

3.9

3.8

3.7

3.6

3.5

3.4

3.3

3.2

3.1

2.9

2.8

2.7

2.6

2.5

2.4

2.3

5.4

2.1

1.9

1.8

1.7

1.6

1.5

1.4

1.3

1.2

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

5.0

4.0

3.0

2.0

1.0

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

#32

45; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

±Map 9-3. Ecology's administrative sourcecontrol boundaries (identified as of February2008)

Ecology's administrative source controlboundaries (identified as of February 2008)

Boundaries established by Ecology as of 07/08/08 (Good 2008)West bank

Bold - Areas to be discussed in detail in Appendix I

Spokane Street to Kellogg Island

Kellogg Island to Lafarge Cementa

Glacier Bay

Terminal-115a

Trotsky Inleta

Riverside Drive

Terminal-117a


Restoration areas

EAA and February 2007 source control boundariesBased on areas provided by Ecology (February 2007) and some of theEAA cleanup boundaries (see Section 9.2.2).

Tax parcelb

River mile

Navigation channel


0 0.25 0.5Miles

0 0.25 0.5Kilometers

Ecology's administrative source controlboundaries (identified as of February 2008)

Boundaries established by Ecology as of 07/08/08 (Good 2008)East bank

Bold - Areas to be discussed in detail in Appendix I

Spokane Street to Ash Grove Cementa


Slip 1

King County lease parcels

St. Gobain to Glacier Northwesta

Slip 2 to Slip 3

Slip 3 to Seattle Boiler Worksa

Seattle Boiler Works to Slip 4a

Slip 4

Boeing Plant 2/Jorgensen Forgea

Boeing Isaacsona/Central KCIA

Slip 6

Boeing Developmental Centera

Norfolk CSO/SD

a Company names are used only to designate areas and are not necessarily included in the cleanup program or responsible for contamination in those areas.

b Tax parcel information was provided in 2008 by Seattle Public Utilities and King County. Some tax parcel polygons were edited to conform to the LDW shorelinepresentation. A comprehensive survey of property-owner records was not conducted.

!(

!(

!(

!(

!(

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)�) �)

�)

�)

�)

�)

�)

�)

�)

�)

�)�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!( !(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!( !(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!( !(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

GF

GF

k

#*

9k

#*

9k

#*

9

XW�

k

#*

9k

#*

9k

#*

9

XW�

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9

k

#*

9 k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9k

#*

9

West Seattle Bridge

Harbor Island

Eas

t Wat

erw

ay

Eas

t M

arg

inal

Way

S

Kellogg Island

Pacific Stove and Foundry Company (historical, metal treatment facility). Wastes consisted of acids, bases and cyanide. The waste was dumped onto an adjacent parcel.

Superior Portland Cement Company (historical, cement plant).Wastes included sewage and water used to cool bearings.Used bricks and kiln lining were used as backfill behinda bulkhead.

1974 PCB spill and cleanup

Terminal 106 SW

S Idaho St

Diagonal Ave S

Fruit canning facility (historical)

Pacific Coast Forge Company (historical, forge operations andmanufacturer of nuts and bolts). The company was known to produce oil and acid waste. Every two weeks, 875 cubic feet ofacid tank contents were dumped into a sand pit. The pit filteredthe waste, which then flowed into the river. Acid waste was alsodumped into an underground settling box and then drained to thewaterway. Prior to development of the pit, oil from cutting machineswas discharged directly into the river.

Reem Manufacturing Company (historical, hot water tank and heater manufacturer). Neutralized pickling liquor was dischargedto the river.

Seaboard Lumber Company (historical). Generated wood waste.

City of Seattle former Diagonal wastewater treatmentplant. Also identified as Oregon St treatment Plant.

Cement plant (historical and ongoing)

General Construction Company (historical).Waste included sewage.

Disposal of sediment from Slip 1 cleanup, and former sludge bed lagoons.

Manufacturers Mineral company(historical, rock processing facility). Granite sand was used as fill material.

Cunningham Steel Foundry (historical, steel foundry). Sand was used as fill material.

Abrahamson Brick Company (historical).Broken brick was used as fill material,may have leached oils.

Spokane Street toKellogg Island

Kellogg Island to Lafarge Cement

King Countylease parcels

Terminal 106 West

Federal Center South

Lafarge Corp

Ash Grove Cement

Terminal 104

Terminal 103

Port of Seattle Terminal 102/Harbor Island Marina

General Recycling of Washington

Ferguson Enterprises

J. A. Jack & Sons

Alaska Marine Lines

ICONCO/LVI Demolition

Terminal 108

Herring's House Park

Saint-Gobain Containers

Terminal 107

Chemithon Corp

Cadman and Lehigh Northwest

United Motor Freight Inc.& Bob’s Boat Shop

General Recycling of Washington

Harbor Real Estate

Manson Construction

BNSF Rail line

Snopac Products

Terminal 103?

George S Schuster Co.

Terminal 107

Terminal 107

Slip 1

Spokane Street toAsh Grove Cement


2004

2004

1.2

1.1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

1.0

Map 9-4a. Selected historical operationsnear the LDW, RM 0.0 to RM 1.2

0 300 600150Feet

0 100 20050Meters±

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

307

7; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

SQS/CSL category forsurface sediment locationa

!( > CSL, detect

!( > SQS and ≤ CSL, detect

�) > CSL, non-detect

�) > SQS and ≤ CSL, non-detect

!( ≤ SQS, detect and non-detect

!( Seep sampling location

Outfall classificationb

k

#*

9 CSO

k

#*

9 CSO/storm drain

k

#*

9 EOF

k

#*

9 Permitted private storm drain

k

#*

9 Private storm drain

k

#*

9 Public storm drain

k

#*

9 Pipe of unresolved origin and/or use

XW� Abandoned

XW� Not an outfall

GF Stream, channel, or swale

WasteTypec

Liquid waste

Solid waste

Dredge spoils

Terminal dredge and fill

Tax parceld

Early action areae

Dredged areaf

Dredged and capped areaf

Thin-layer placementf

River mile

Navigation channel

Photo source: "USGS High Resolution Orthoimage, Seattle/Tacoma, WA", United States Geological Survey, 2003. Distributed by King County GIS. Photo date 06/11/2002.

Most of the information regarding historical operations shown on this map was compiled fromFoster (1945) and the Pollution Control Commission (1955). Historical information was alsoobtained, to a limited degree, from other sources during the review of property-specific information.Information presented on this map is a summary of information from available documentation andis not comprehensive. No attempt was made to comprehensively summarize historical operationsbetween 1955 and the present. The locations of the text boxes are based on available information;in many cases, the exact locations are unknown. This map is intended to identify approximatelocations of historical operations relative to the LDW and should not be used to associate theseoperations with individual parcels. None of the resource information has been independentlyverified for completeness or accuracy beyond the citations noted.

a When OC-normalization was not appropriate because TOC content was < 0.5% or > 4.0%, dry weight concentrations for these locations are compared instead to the LAET and 2LAET.

b Outfalls shown were identified during a City of Seattle low-tide survey in 2003 (Herrera 2004). Some locations were initially identified using drainage maps from Ecology’s National Pollutant Discharge Elimination System (NPDES) permit files and other relevant agency databases. These locations

were later surveyed in the field. Review of agency files and interviews with agency and LDWG personnel provided additional outfall-specific information. Some locations were field-verified by LDWG members; some additional outfall locations were identified during these subsequent verifications.The outfall layer is meant to serve as a snapshot of outfall conditions at the time the survey was completed (2003). More recent information, when available, is reflected in the outfall discussions in Appendix I.c Sweet Edwards 1985. Duwamish groundwater study. Prepared for Municipality of Metropolitan Seattle. Sweet, Edwards and Associates, Inc. and Harper-Owes Company, Seattle, WA

d Tax parcel information was provided in 2008 by Seattle Public Utilities and King County. Some tax parcel polygons were edited to conform to the LDW shoreline presentation. A comprehensive survey of property-owner records was not conducted. Names represent tenant/operator or owner.

e Several of the EAA boundaries are approximate and have not been finalized by EPA/Ecology; a description of each EAA boundary is presented in Section 9.2.2.

f For the Duwamish/Diagonal Early Action Area, surface sediment data in the baseline dataset represent samples collected before dredging/capping in 2003/2004, or thin-layer placement in 2005. For other dredged areas, surface sediment data were collected after dredging. Subsurface sedimentdata in dredged areas were collected prior to dredging. Dredging information provided by AECOM. Year shown represents dredge year.


!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(!(

!( !(

!(

!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(!(

!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(

!(

!(

!(!(

!( !(

!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(!(

!(!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(!(!(

!(!(

!(!(!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(!(!(

!(!(

!(!(!(

!(!(!(

!(!(

!(!(!(

!(!(!(

!(!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(!(!(

!(!(

!(!(!(

!(!(!(

!(!(

!(!(!(

!(!(!(

!(!(

!(!(!(

!(

!(

!(

!(!( !(

!(

!(

!(!(!(

!(!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(!(!(

!(!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(!(!(

!(!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(!(!(

!(!(

!(

!(

!(!( !(

!(

!(

!(!(!(

!(!(

!(!(!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(

!(!( !(

!(

!(

!(!(!(

!(!(

!(!(!(

!(!(!(

!(!(!(

!(!(!(!(

!( !(

!(

!(

!(!(!(

!(!(

!(

!(

!(!(!(

!( !(

!(

!(

!(!(!(

!(!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(!(!(

!( !(

!(

!(

!(

!(

!(

!(

!(

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�)

�) �)

�)

�) �)

�)�)

�)

�)

�)

�)�)

�)

�)

�)

�)

�)

�)�)

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!( !(!( !(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

Zellerbach Corporation (historical, charcoalmanufacturer). Generated 100 cubic feet of copper ammoniate waste per month. Waste was disposed of on land and inthe river.

National Steel Construction Company(historical, steel construction company). Disposed of 1250 gallons per month ofsulfuric acid and 250 gallons per monthof 5% hydrofluoric acid into the river.

East Marginal W

ay S

Wes

t M

arg

inal

Way

SW

1st A

ve S

1st A

ve S

Bri

dge/

HW

Y 9

9

S Michigan St

Hw

y 99

Frank'sUsed Cars

(approximateformer location)

Former MRI Corporation

SDOTright-of-way

MRI Corporation (historical,tin reclamation facility)

Klinker Sand and Gravel Company (historical). Gravelwash water was discharged into the river. The concreteand truck washings were used to make fill.

Glacier Gravel Company (historical). Truckwashings and concrete waste were usedas bank fill. Some gravel was spilled into the waterway during transport.

Hale's Construction (historical, hazardous materials storage)

Duwamish Marine Center (historical and ongoing shipyard)

Boeing Plant 1 (historical). Chromic acid waste wasdischarged into the river (2200 gallon tanks weredumped every 8 months); 25-50 lbs of chromic acidwaste was spilled or dripped every day. A small amount of cutting oil may also have entered the river.

Pacific Metal and Salvage Company (historical, wreckingand salvaging operations). Broken pieces of ships fell into the river. A significant oil spill was reported.

Seattle Export Lumber Company (historical). Cooler water and sewage from the mills drained into the river.

I.F. Laucks Factory (historical, paintand glue manufacturing). Generatedcaustic soda discharge was cleanedand discharged into the city sewer.

Ship building(historical)

Cement manufacturer (historical)

Northwest Cooperage (historical and ongoing, drumrecycling). A waste lagoon was located on the property,which discharged to the river under a pier. This facilitygenerated sodium hydroxide waste.

Reichold Chemical Company (historical, chemical manufacturer). Drum recycling beginning in 1943. Phenols and pentachlorophenol were present inliquid wastes.

Siler Box Company (historical). Sawdust was reportedly dumped at the water's edge.

Continental Can Company (historicalmachine shop). Cooler water from acompressor was discharged into theriver. A small amount of cutting oilwas dumped in the yard.

Seattle Boiler Works (historical and ongoing).Water from a hydraulic press was dischargedinto the waterway.

Metal manufacturing andterminal operations (historical).

Seabell Shipbuilding Company (historical, ship construction)

Highland Park Way SW

Terminal 115

Glacier Northwest

BPB Gypsum

Alaska Marine Lines

Dawn Food Products Inc.

Seattle Iron & Metal

Boyer Towing

Lafarge Corp

Duwamish Shipyard

Glacier Marine Services

Glacier Northwest

Saint-Gobain Containers

SeattleDistribution

Center

Seattle Boiler Works

Trotsky/former Northwest Cooperage(currently Industrial Container Services)

J. A. Jack & Sons

Alaska Marine Lines

SeattleCold Storage

Hale's Construction

Chemithon Corp

Glacier Northwest

Foss Environmental

Longview Fibre Paper and Packaging

Puget SoundTruck Lines

Silver BayLogging

SDOT right-of-way

Wells Trucking& Leasing

Hurlen Construction Company

Boyer Towing

DuwamishMarine Center

Alki Construction Company

BIARainer

Petroleum

Big John's TruckRepair - (approximate

former location)

Residential

DuwamishMarine Center

Slip 3 to SeattleBoiler Works

Glacier Bay

Saint-Gobain to Glacier NW

Seattle BoilerWorks to Slip 4

Trotsky Inlet

Slip 2 toSlip 3

1986,

1993,

2005

1996,

19992001

1993

1993

1998,

2004

1998

2.6

2.5

1.9

1.8

1.7

1.6

1.5

1.3

2.4

2.3

2.1

1.4

1.2

2.0

Map 9-4b. Selected historical operationsnear the LDW, RM 1.2 to RM 2.6

0 300 600150Feet

0 100 20050Meters±

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

307

7; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

SQS/CSL category for surface sediment locationa

!( > CSL, detect

!( > SQS and ≤ CSL, detect

�) > CSL, non-detect

�) > SQS and ≤ CSL, non-detect

!( ≤ SQS, detect and non-detect



k

#*

9 CSO

k

#*

9 CSO/storm drain

k

#*

9 EOF

k

#*


k

#*


k

#*


k

#*


Waste Typec

Liquid waste

Dredge spoils


Landfill or dump site

Tax parceld

Early Action Areae

Dredged areaf

Dredged and thin-layer placementf

River mile

Navigation channel

Photo source: "USGS High Resolution Orthoimage, Seattle/Tacoma, WA", United States Geological Survey, 2003. Distributed by King County GIS. Photo date 06/11/2002.a When OC-normalization was not appropriate because TOC content was < 0.5% or > 4.0%, dry weight concentrations for these locations are compared instead to the LAET and 2LAET.








!(

!(!(!(

!(

!(!(

!(!(

!(

!(

!(

!(!(

!(

!(!(

!(

!(!(

!(

!(

!(

!(

!(

!(

GF

k

#*

9 k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

XW

XW

XW

XW

XW

XW

XW

XW

XW

XW

XWXW

XW

XW

XW

XW

XW

XW

XW

XW

XW

XW

XW

XW

XW

XW

XW

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9 k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

)

)

)

)

)

)

)

))

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

))

) )

) )

)

)

)

)

)

)

)

!(

!(

!(

!(!(

!(

!(!(

!(

!(

!(!(

!(

!(!(

!(!( !(

!(!(

!(!(

!(!(

!(

!(

!(

!(

!(

!(!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(!(!(

!(!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(!(!(!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(!( !(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(!(

!(

!(!(

!(

!(

!(

!(

!(

!(!(!(!(!(!(!(!(

!(

!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(!(!(!(

!(!(!(

!(!(!(

!(!(!(

!(

!(!(!(!(!(!(

!(!(!(!(!(!(!(

!(!(!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(!(

!(!(

!(

!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(!(!(!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

Former Slip 5

S Cloverdale St

Dallas Ave S

S 92 Pl

A&B Barrel Company (historical, barrel and drum reconditioning). Liquid wastes such as oils, grease and sodium hydroxidewere discharged to a pond andultimately drained to the river.

City Packing Plant (historical, meat packing plant). Manure,blood, and floor washings entered the waterway.

Isaacson Works (historical, steel forging facility).Isaacson Works discharged carbide waste froman acetylene generator into the river and on land.There was also a possible plating shop on theproperty. Cooling water drained into the river.

Kenworth Motor Truck Corp/PACCAR (historical, heavy truck manufacturer). Caustic wash waterand oil were discharged into the storm sewer andultimately into the river. Acid waste was disposedof on land.

Airplane painting andcommissioning (historical)Seattle Concrete Pipe Company

(historical, pipe making facility). Used concrete fill along the shoreline.

Asphalt plant (historical)

Puget Timber Company (historical, creosote pole treatment facility).Creosote was reported to leach into the water during transport.

Hydraulic Supply Manufacturing Company (historicalmachine work and pipe making facility). Each day,150 lbs of carbide waste was drained into the river.

Boeing Plant 2 (historical and ongoing, airplane part manufacturingand steel and equipment manufacturing facility). Chromic acid waste from metal plating tanks entered waterway. As much as 1000 gallons to 200 lbs of acid may have been lost each day. Carbide waste and cutting oil were dumped on the ground. Small amounts ofcaustic waste and a small spill of sodium nitrate drained into the river. Cyanide and chromate have been spilled or have leaked ontothe property.

Basin Oil (historical, used oil andantifreeze processing facility)

Asphalt manufacturing (historical)

Mineralized Cell Wood Preserving Company (historical, logtreatment facility). Disposed of arsenic and copper sulfate onthe ground. Fuel oil was spilled on the ground. Wood treatedwith a solution containing arsenic and sulfate salts of copperand zinc. Chemicals may have leached out of the wood intothe water during transport.

Bethlehem Steel Corp. (historical, steel fabrication and galvanization facilities). Caustic wash water wasdischarged into the river.

East Marginal W

ay S

16th

Ave

S

Hw

y 99

Riverside Drive

Sea KingIndustrial Park

Georgetown Steam Plant(historical power plant).See inset.

↑

Boeing Plant 2

Boeing Plant 2

Boeing Plant 2

Boeing South Park

Jorgensen Forge

Boeing Thompson Property

Boeing Isaacson Property

Boeing Plant 2

Former Kenworth Truck Company/PACCAR


Puget Sound Truck Lines

Terminal 117

First South Properties

South Park Marina

Northwind Marine Inc

Duwamish Waterway Park

Unity Electric Construction

Lukas Machine Inc

Crowley Marine Services

South Park Marina


Alki Construction Company

Seattle City LightPumping Station


FormerBasin Oil

Metro Pump Station

Boyer TowingPioneer Distribution

Silver Bay Logging (Vacant)

Slip 6


Slip 4

Terminal-117

Seattle BoilerWorks to Slip 4

Boeing Isaacson/Central KCIA

North Boeing Field

KingCounty

InternationalAirport

KingCounty

InternationalAirport

1990,

1992,

1999

1992,

1993

1992

1996

1998

3.9

3.8

3.7

3.5

3.4

3.3

3.2

3.1

2.9

2.7

2.6

2.5

3.0

3.6

2.8

4.0

Map 9-4c. Selected historical operationsnear the LDW, RM 2.6 to RM 4.1

0 300 600150Feet

0 100 20050Meters±

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

307

7; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

SQS/CSL category forsurface sediment location

a

!( > CSL, detect!( > SQS and ≤ CSL, detect) > CSL, non-detect) > SQS and ≤ CSL, non-detect!( ≤ SQS, detect and non-detect



k

#*

9 CSO

k

#*

9 EOF

k

#*

9 EOF/storm drain

k

#*


k

#*


k

#*


XW Abandoned

XW Not an outfallGF Stream, channel, or swale

WasteTypec

Solid waste

Liquid waste

Liquid and solid waste

Tax parceld

Early action areae

Dredged areaf

Filled former slip

Georgetown flume (approximate former path)

River mile

Navigation channel

Photo source: "USGS High Resolution Orthoimage, Seattle/Tacoma, WA", United States Geological Survey, 2003. Distributed by King County GIS. Photo date 06/11/2002.a When OC-normalization was not appropriate because TOC content was < 0.5% or > 4.0%, dry weight concentrations for these locations are compared instead to the LAET and 2LAET.








k

#*

9k

#*

9k

#*

9k

#*

9k

#*

9k

#*

9

GeorgetownSteam Plant

Slip 4

0 500 1,000250Feet

0 100 20050Meters

!(

!(

!(!(!(!(

!(!(

!(

GF

k

#*

9

k

#*

9

XW

XW

XW

XW

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

)

)

)

)

)

)

)

)

))

)

)

)

)

)

)

)

)

)

)

)

)

)

)

))

)

)

)

)

)

)

)

)

)

)

)

))

)

)

)

)

)

)

)

)

)

))

)))

))

) )

) )

)

) )

)

)

))

)

)

)

)

)

)

)

)

))

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

)

))

)

))

)

)

))

)

)

)

!(!(!(!(!(!(!(!(

!(

!(!(

!(!(!(

!(!(!(

!(

!(!(!(

!(

!( !(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!( !(!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!( !(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(!( !(!(!(

!(

!(

!(

!(

!(

!(!(

!(!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!( !(!(

!(

!(

Pl

S 102nd St

S Boeing Access Rd

S Norfolk St

Upper Turning Basin

Hw

y 99

West M

arginal Pl SW

Eas

t Mar

gina

l Way

S

S 96th Pl

American Wine Growers (historical, distilling and bottling plant)

Pacific Rendering Company (historical, fish processing facility). Washings from processing tanks and a small amountof caustic waste drained to a slough.

Pankratz Lumber Company (historical). Stored sawdustpiles along the shoreline.

Acme Packing Company (historical, slaughterhouse)Manure and floor washings drained into the river.

Slaughterhouse (historical)

Gas station, grocery store, winery, and auto wrecking (historical) Boeing Developmental Center (historical andongoing, airplane manufacturing).

Slip 6

Sea KingIndustrial Park

Restoration areas

Norfolk CSO/SD

Boeing Oxbow Site


USPS

Seattle City Light

Former Rhône-Poulenc

USPS



Seattle City Light Substation

Pamco Construction

AIF Trailer Leasing

Former Kenworth Truck Company/PACCAR

Delta Marine

Seattle City Light


Seattle City Light


Strick Lease Storage Yard

Duwamish Yacht Club

The Voyeur

Muckleshoot Indian Tribe

1986

to

2008

1990

to

1999

2004,

2008

1999

1999,

2003

King County International Airport

Military Flight Center

3301 South Norfolk LLC

5.8

5.7

5.6

5.5

5.4

5.3

5.2

5.1

4.9

4.8

4.7

4.5

4.4

4.3

4.1

4.0

5.0

4.6

4.2

Map 9-4d. Selected historical operationsnear the LDW, RM 4.1 to RM 5.8

0 300 600150Feet

0 100 20050Meters±

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

307

7; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

SQS/CSL category forsurface sediment location

a

!( > CSL, detect!( > SQS and ≤ CSL, detect) > CSL, non-detect) > SQS and ≤ CSL, non-detect!( ≤ SQS, detect and non-detect



k

#*

9 CSO/storm drain

k

#*


k

#*


k

#*


k

#*


XW AbandonedGF Stream, channel, or swale

WasteTypec

Solid waste

Liquid waste

Dredge spoils

Tax parceld

Early action areae

Dredged areaf

Dredged and capped areaf

Filled former slip

River mile

Navigation channel

Photo source: "USGS High Resolution Orthoimage, Seattle/Tacoma, WA", United States Geological Survey, 2003. Distributed by King County GIS. Photo date 06/11/2002.

Hw

y 99

a When OC-normalization was not appropriate because TOC content was < 0.5% or > 4.0%, dry weight concentrations for these locations are compared instead to the LAET and 2LAET.








S 92

Approximate location of the

6th Ave S Landfill - boundaries

not known

Sick's Stadium Landfill

Judkins Park Landfill

South Park Landfill

2.2

5.8

5.6

5.5

5.4

5.3

5.25.1

4.9

4.8

4.7

4.6

4.5

4.4

4.3

4.2

4.1

3.9

3.8

3.7

3.5

3.4

3.3

3.2

3.1

2.9

2.8

2.7

2.6

2.5

2.4

2.3

5.7

2.1

1.9

1.8

1.7

1.6

1.4

1.3

1.2

1.1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.10.0

5.0

4.0

3.0

2.0

1.0

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

#28

22; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

±Map 9-6. Historical waste disposal sites and landfills within the LDW summation area asidentified by Sweet Edwards (1985)

0 0.25 0.5Miles

0 0.5 1Kilometers


0 1 2 Miles

Much of the information regarding historical waste disposal and landfill sites shown on this mapwas compiled from Sweet Edwards (1985). Historical information was also obtained, to a limiteddegree, from other sources during the review of LDW-related information. The locations of thehistorical waste disposal and landfill sites presented on the map are approximate locations basedon available information; in many cases, the exact locations are unknown. This map is intendedto identify approximate locations of historical waste disposal and landfill sites relative to the LDWand should not be used to associate these sites with current property operations. Some of theresource documents used to create this map are known to contain errors. None of the resourceinformation has been independently verified beyond the citations noted.

Sweet Edwards. 1985. Duwamish ground water study. Prepared for Municipality of MetropolitanSeattle. Sweet, Edwards and Associates, Inc. and Harper-Owes Company, Seattle, WA.

WasteType

Solid waste

Liquid waste

Liquid and solid waste

Dredge spoils


Landfill or dump sitea

Filled former slip

Pre-1900 Shoreline

Tax parcel

Road

Navigation channel

River mile

a Labeled landfills are those specificallyidentified in Section 9.3.2.5.

BW

KCIA

SPCC

DZ

CE

BWRCER

Map 9-7. King County atmospheric deposition monitoring stations

Source: King County (2008b)

0 3,000 6,0001,500F eet

April 2007

- Atmospheric deposition monitoring station

Legend

BW - Beacon HillBWR - Relocated Beacon HillCE - Duwamish Valley/E Marginal Way SCER - Relocated Duwamish Valley/E Marginal Way SDZ - GeorgetownKCIA - King County International AirportSPCC - South Park Community Center

The information included on this map has been compiled from a variety of sources and is subject to change without notice. King County makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. King County shall not be liable for any general, special, indirect, incidenital, or consequential damages including, but not limited to, lost revenues or lost profits resulting from the use or misuse of the information contained on this map. Any sale of this map or information on this map is prohibited except by written permission of King County.

I-5

I-90

15TH

AV

ES

CO

RSO

N

EAS

TM

AR

GIN

AL

Elliott Bay Lake

Wash

ingto

n

Du

wa

mi

sh

Ri

ve

r

99

99

509

PERIMETER

RDS

16TH

AV

ES

W

SW SPOKANE ST

1ST

AV

ES

4TH

AV

ES

5TH

AV

ES

AIR

PO

RT

WAY

S

S ROYAL BROUGHAM WAY

23R

DA

VE

S

RAINIERAVE

S

S ALASKA ST

S ORCAS ST

S GRAHAM ST

DEL

RID

GE

WAY

SW

WEST

MA

RGIN

AL

WAY

SW

SW HOLDEN ST

S ALBRO PL

EAST MARGINAL WAY S

S MYRTLE ST

ML

KIN

GJR

WAY

S

S CLOVERDALE ST 16TH

AVE

S

S COLUMBIAN WAY

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

272

0; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9 GFXW�

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

GF

k

#*

9

k

#*

9

XW�

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9

Harbor I.

PORT OF SEATTLE

GENERAL RECYCLING

OF WASHINGTON

ASH GROVE CEMENT WEST INC

PORT OF SEATTLE

Kellogg I.

2155 – Diagonal Avenue S CSO/SD (111),SPU, King County

LIPSETT CO LLC

PORT OF SEATTLE

PORT OF SEATTLE

PORT

OF

SEATTLE

PORT OF SEATTLE

PORT OF SEATTLE

SEATTLE PARKS DEPT

GENERAL

RECYCLING

OF

WASHINGTON

LLC

FEDERAL GOVERNMENT

PORT OF SEATTLE

PORT OF SEATTLE

ASH GROVE

CEMENT WEST INC

PORT

OF

SEATTLE

PORT OF SEATTLE

LIPSETT CO LLC

ANDERSON, DOROTHY

HARBOR REAL ESTATE

Duwamish Pump Station East (035), King County

0.1

0.7

0.6

0.5

0.4

0.3

0.2

0.0

2146

2145

2144

2225

2233

2232

2156

2154

2151

2150

2149

2148

21532226

2143

21422140

HRE 1

2147, SPU

2002, SPU

2003, SPU

2141, Drummond

2157, Birmingham

2006, Corps of Engineers

Map 9-8a. Outfall locations and ownership,RM 0.0 to RM 0.7

±0 200 400

Feet0 50 100

MetersLLCWindWardenvironmental

Outfall classificationa

k

#*

9 CSO/storm drain

k

#*

9 EOF

k

#*


k

#*


k

#*


XW� Abandoned



Tax parcelb

Road

Navigation channel

River milea Outfalls shown were identified during a City of Seattle low-tide surveyin 2003 (Herrera 2004). Some locations were initially identified usingdrainage maps from Ecology’s National Pollutant Discharge EliminationSystem (NPDES) permit files and other relevant agency databases.These locations were later surveyed in the field. Review of agency filesand interviews with agency and LDWG personnel provided additionaloutfall-specific information. Some locations were field-verified by LDWGmembers; some additional outfall locations were identified during thesesubsequent verifications. The outfall layer is meant to serve as a snapshotof outfall conditions at the time the survey was completed (2003). Morerecent information, when available, is reflected in the outfall discussions inAppendix I.

b Tax parcel information was provided in 2008 by Seattle Public Utilities andKing County. Some tax parcel polygons were edited to conform to the LDWshoreline presentation. A comprehensive survey of property-owner recordswas not conducted.

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

272

0; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

Slip 1

Kellogg I.

PORT OF SEATTLE

KING COUNTY

PORT OF SEATTLE

KING COUNTY

EAST

MARGINAL

WAY

BUILDING

BPB GYPSUM

LAFARGE CORP

PORT OF SEATTLE

GLACIER NORTHWEST INC

DUWAMISH SHIPYARD INC

ALASKA MARINE LINES INC

KING COUNTY

KING COUNTY

KING COUNTY

KING COUNTY

KING COUNTY

FEDERAL GOVERNMENT

SAINT-GOBAIN CONTAINERS

LONGVIEW FIBRE PAPER & PACK

CHEMITHON

CORP

5001, GSA

2245, GSA

k

#*

9

k

#*

9

0.7

1.5

1.4

1.3

1.2

1.1

0.9

0.8

1.0

2128

5000, GSA

2247, GSA

2246, GSA

2005, GSA

2004, GSA

2244, King County

2011, King County

2010, King County

2009, King County

2008, King County2007, King County

2013, Longview Fibre

2130, Glacier Northwest

2006, Corps of Engineers

2139, Lafarge Corporation


2136, Alaska Marine Lines

2129, Duwamish Shipyard, LLC

2223 – S Brandon Street CSO (041), King County

2127, Terminal 115 CSO (038)/SW Kenny SD, King County/SPU

Map 9-8b. Outfall locations and ownership,RM 0.7 to RM 1.5

k

#*

9k

#*

9

k

#*

9k

#*

9k

#*






0 5 10Feet

0 1 2Meters

±0 200 400

Feet

0 50 100Meters

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9





2137, Lafarge Corporation0 10 20

Feet

0 2 4Meters



k

#*

9 CSO

k

#*

9 CSO/storm drain

k

#*


k

#*


Tax parcelb

Road

Navigation channel



Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

272

0; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

Slip 2

Slip 3

k

#*

9

k

#*

9 2016, James Hardie2015, James Hardie

1st A

ve S

Bri

dge

PORT OF SEATTLE

BPB GYPSUM INC

SEATTLE

DOT

SEATAC MARINE PROPERTIES LLC

LONE STAR

INVESTORS LLP

GUIMONT GEMO/WILLIAM P

HOPKINS FREDERICK J FAM TRS



GILMUR, JAMES

GILMUR, JAMES

& JACQUELINE H

GILMUR, JAMES

GILMUR, JAMES

GILMUR,

JAMES

PORT OF SEATTLE

SEATTLE DOT

DUWAMISH

TRIBE USA

IN TRUST

MUCKLESHOOT

TRIBE

RANIER

PETROLEUM

CORPORATION

SCS HOLDINGS INC

FOX AVENUE LLC

TROTSKY, HERMAN & JACQUALINE

BOYER

TOWING

INC

LONGVIEW FIBRE PAPER & PACK

PORT

OF

SEATTLE

200 SW MICHIGAN LLC

STATE

OF

WASHINGTON

SEATTLE

DOT

SEATTLE

DOT

SEATTLE DOT

PORT OF SEATTLESTATE

OF

WASHINGTON

CLPF-SEATTLE

DISTRIBUTION

CENTER LP

SHALMAR GROUP

BOYER

TOWING

INC

DOUGLAS

MANAGEMENT

COMPANY

.2033, Hopkins, Frederick2032, Hopkins, Frederick

2030, Hopkins, Frederick

2028, Hopkins, Frederick2027, Hopkins, Frederick


2501

k

#*

9 2121

2509k

#*

9

2502 – E Michigan StreetCSO (039), King County

2.2

1.6

2.3

2.1

1.9

1.8

1.7

2.0

25032122

2220

2022

2128

2512

2510

2507

2505

2120

2118, SPU

2026, SPU

Port – SF

2024, SCS Holdings

2017, James Hardie

2014, James Hardie



2021, Gilmore James Bldg

S Brighton St CSO/SD, SPU

2117, Boyer Logistics, Inc

2508, 1st Ave S Bridge (west side)

2506 – W Michigan Street CSO (042), King County

2127, Terminal 115 CSO (038)/SW Kenny SD, King County/SPU

Map 9-8c. Outfall locations and ownership,RM 1.5 to RM 2.3

±0 200 400

Feet0 50 100

Meters

k

#*

9

k

#*

9k

#*

921242123

2125, SPU

0 10 20Feet

0 2.5 5Meters



k

#*

9 CSO

k

#*

9 CSO/storm drain

k

#*

9 EOF

k

#*


k

#*


k

#*


k

#*


Tax parcelb

Road

Navigation channel

River milea Outfalls shown were identified during a City of Seattle low-tide surveyin 2003 (Herrera 2004). Some locations were initially identified usingdrainage maps from Ecology’s National Pollutant Discharge EliminationSystem (NPDES) permit files and other relevant agency databases.These locations were later surveyed in the field. Review of agency filesand interviews with agency and LDWG personnel provided additionaloutfall-specific information. Some locations were field-verified by LDWGmembers; some additional outfall locations were identified during thesesubsequent verifications. The outfall layer is meant to serve as a snapshotof outfall conditions at the time of the survey was completed (2003). Morerecent information, when available, is reflected in the outfall discussions inAppendix I.


Pre

par

ed

by C

EH

, 07

/15

/201

0; M

AP

27

20; W

:\Pro

ject

s\00

-08

-06

_Duw

amis

h_R

I\dat

a\gi

s\P

hase

2 R

I\Sou

rce

Co

ntro

l\Sec

tion

9

XW�

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9k

#*

9k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9 k

#*

9 k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9 k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

Slip 4

2039, R&A Properties

2049 – KCIA SD#3/PS44 SPU

EOF, King County

SILVER BAY LOGGING INC

BOEING

SHALMAR GROUP

SHALMAR GROUP

ESI MGT

R & A PROPERTIES

HOPKINS, FREDERICK J

FAM TRS

BOYER TOWING

HALVORSEN, MARYCATHERINE

HALVORSEN BOYER JR

& KIRSTEN & MAIA

BOYER TOWING INC

CASCADE BARGE

& EQUIPMENT LLC

HURLEN, HARALD L

HURLEN, HARALD L

DE ALVA, LISA

TRIPLETT, MYRNA

HURLEN, HARALD L

SEATTLE

CITY LIGHTCROWLEY MARINE SERVICES INC

LUKAS, BILLIE

MACKSENE

SILVER BAY

LOGGING INC

KING COUNTY

ELM GROVE LLC

SEATTLE PARKS DEPT

GUIMONT, GEMO/WILLIAM P

R & A PROPERTIES

PORT

OF

SEATTLE

PORT

OF

SEATTLE

LIBBEY, THOMAS S

PORT

OF

SEATTLE

PORT

OF

SEATTLE

PORT

OF

SEATTLE

HURLEN, HARALD L

HANSEN,

MARK N

PORT

OF

SEATTLE

5010, Crowley Marine


5008, Crowley Marine5007, Crowley Marine



2219, First South Properties2217, First South Properties

2050, First South Properties

CITY OF SEATTLE

2051, First South Properties2216, First South Properties

k

#*

9

k

#*

9

East Marginal EOF (043),King County

k

#*

9

k

#*

9

2053, Boeing – Plant 22052, Boeing – Plant 2

2.4

3.1

2.9

2.8

2.7

2.5

3.0

2041

2113

2108

2111

2110

2109

3023

2112, SPU

2035, SPU

2026, SPU

2048 – NBF SD, SPU

2036, S Othello St

2034, Shalmar Group

2046 – I-5 SD, WSDOT




3024, Boeing – Plant 2









Boeing 1, Boeing – Plant 2

2107 – 8th Avenue S CSO (040), King County2106

2047 – GTSP Flume, SCL

Map 9-8d. Outfall locations and ownership,RM 2.4 to RM 3.1±

0 200 400Feet

0 50 100Meters



k

#*

9 CSO

k

#*

9 EOF

k

#*

9 EOF/storm drain

k

#*


k

#*


k

#*


k

#*


XW� Abandoned


Tax parcelb

Road

Navigation channel



Pre

par

ed

by C

EH

, 07

/15

/201

0; M

AP

27

20; W

:\Pro

ject

s\00

-08

-06

_Duw

amis

h_R

I\dat

a\gi

s\P

hase

2 R

I\Sou

rce

Co

ntro

l\Sec

tion

9

GF

XW�

XW�

XW�

XW�

XW�

XW�

XW�

XW�

XW�

XW�

XW�XW�

XW�

XW�

XW�

XW�

XW�

XW�

XW

XW�

XW�

XW�

XW�

XW�

XW�

XW�

XW�

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

3004, Boeing - Plant 2

South Park Bridge

Boeing 5, Boeing - Plant 23019

Boeing 8

2054

HALVORSEN M C ELWARD

JRD KING LLC

3005, Boeing - Plant 2

Boeing 4, Boeing - Plant 2

22092210

k

#*

9

XW�

30093008



2061, Boeing – Thompson

BOEING

SOUTH

PARK

MARINA

LTD

PARTNERS

PORT

OF

SEATTLE

BOEING

BOEING

BOEING

BOEING

JORGENSEN FORGE CORP

BOEING

BOEING

ELM GROVE LLC

TATE, PATRICK O

CRONN, ROBERT S

& DAGMAR R

WOOD, ANN R

PORT

OF

SEATTLE

WISE, KALER

TERHUNE, KEITH

MARDEN, JOHN D

SLEMKO, DANIEL ALAN

HMH LLC

SMITH, JULIAN K

SOUTH PARK MARINA LTD PARTNERS

BOEING

SEA KING

INDUSTRIAL

PARK LLC

PORTOF

SEATTLE

PORTOF

SEATTLE

3.9

3.8

3.7

3.6

3.5

3.4

3.3

3.2

3.1

3037

2101

2212

2211

2213

3025

3016

3014

3013

3012

3010

3006

2063

2103

2215

2072, Jorgensen Forge



2069, Jorgensen Forge2068, Jorgensen Forge

2067, Jorgensen Forge2066, Jorgensen Forge








2214, South Park Marina

2077, Boeing – Thompson

2076, Kenworth Truck Co.2075, Kenworth Truck Co.

SP 5, Boeing – South Park





2062, SPU/King County EOF/SD

SP 3 (2103), Boeing – South Park



Map 9-8e. Outfall locations and ownership,RM 3.1 to RM 3.9±

0 200 400Feet

0 50 100Meters

XW�

XW�

XW�

XW�

k

#*

9

k

#*

9k

#*

9

3017


3002



3018

XW�

XW�

k

#*

9

k

#*

9

k

#*

9

3032, SPU/Boeing3031

3034



0 10 20Feet

0 2 4Meters

XW�

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

2059

2058

2057




0 9 18 Feet

0 2.5 5 Meters

0 6 12 Feet

0 2 4 Meters


k

#*

9 EOF/storm drain

k

#*


k

#*


k

#*


XW� Abandoned



Tax parcelb

Road

Navigation channel



Pre

par

ed

by C

EH

, 07

/15

/201

0; M

AP

27

20; W

:\Pro

ject

s\00

-08

-06

_Duw

amis

h_R

I\dat

a\gi

s\P

hase

2 R

I\Sou

rce

Co

ntro

l\Sec

tion

9

GF

XW�

XW�

XW�

XW�

k

#*

9

k

#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k#*

9

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

Slip 6

UpperTurningBasin

2100 (A)2100 (B)

k

#*

9

k

#*

9

XW�

k

#*

9 2082, Boeing Developmental Center2083

2093, Boeing Developmental Center2094

k

#*

9

k

#*

9

2096, Boeing Developmental Center

BDC-5, Boeing Developmental Center

MERRILL CREEK HOLDINGS LLC

CONTAINER PROPERTIES LLC

BOEING

BOEING

SEA KING INDUSTRIAL PARK LLC

MELLON

TRUST OF

WA-DESIMONE

MELLON

TRUST OF

WA-DESIMONE

DELTA MARINE

LATITUTE FORTY SEVEN

SEATTLE CITY LIGHT

SEATTLE CITY LIGHT

SEATTLE CITY LIGHT

MUCKLESHOOT

INDIAN TRIBE

BOEING

PORT OF SEATTLE

SEATTLE CITY LIGHT

SEATTLE

CITY

LIGHT

MUSEUM OF FLIGHT FOUNDATION

MELLON TRUST REAL ESTATE

BOEING

MELLON DESIMONE

4.1

4.8

4.7

4.6

4.5

4.4

4.3

4.0

2084

2101

2205

2079

2086

2099, SCL

2098, SCL

2200, WSDOT

2201, WSDOT

2080, King County

2074, Kenworth Truck Co.

2073, Kenworth Truck Co.

2078, Container Properties LLC

2097, Boeing Developmental Center2092, Boeing Developmental Center








BDC-4, Boeing Developmental CenterBDC-3, Boeing Developmental Center



2095 – Norfolk CSO/SD (044), KC/SPU/Boeing

Map 9-8f. Outfall locations and ownership,RM 4.0 to RM 5.0

±0 200 400

Feet

0 50 100Meters



k

#*

9 CSO/storm drain

k

#*


k

#*


k

#*


k

#*


XW� Abandoned


Tax parcelb

Road

Navigation channel

River milea Outfalls shown were identified during a City of Seattle low-tide surveyin 2003 (Herrera 2004). Some locations were initially identified usingdrainage maps from Ecology’s National Pollutant Discharge EliminationSystem (NPDES) permit files and other relevant agency databases.These locations were later surveyed in the field. Review of agency filesand interviews with agency and LDWG personnel provided additionaloutfall-specific information. Some locations were field-verified by LDWGmembers; some additional outfall locations were identified during thesesubsequent verifications. The outfall layer is meant to serve as a snapshotof outfall conditions at the time the survey was completed (2003). Morerecent information, when available, is reflected in the outfall discussions inAppendix I. A City pump station EOF also discharges through the NorfolkCSO/SD outfall.


Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

350

5; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

GF

GF

!(�)

GFGF

!(�)

!(�)

!(�)

!(

GF

�)�)

!(

!(�)

!(�)

GF

!(

!(

!(!(!(!(!(!(

!(�)�)�)

!(�)

!(�)

!(

!(

�)

!(�)GF

!(

!(

!(

!(�)

!(

�)

!(

!(�)

!(�)�)

!(

!(�)

!(

!(

!(

!(

!(

!(�)

GF

!(�)

GF

GF

!(

GF

!(�)

!(

GF

GF

!(

!(�)

!(�)

!(�)

!(�)

!(

!(�)

GF

GF

!(

!(�)�)

!(�)

!(

!(!(�)

!(�)

!(

GF

!(

!(

!(

!(

!(!(

!(

!(�)

�)

�)�)

�)

�)

�)

�)�)

!(�)

!(

!(

!(

!(�)

!(�)

!(�)

GF

GF

!(

GF

!(�)

!(�)

!(�)!(�)

!(

!(

!(

GF

!(

!(�)

GF

GF

!(�)

!(�)

GF

!(

!(

�)�)

!(

GF!(

GF

!(

GF

GF

!(�)

!(�)GF

!(�)

!(

!(

!(

!(

!(

!(

!(

!(�)

!(

!(

!(

GF

GF

!(�)

!(

!(�)

!(

GF

!(

GF

�)

!(

!(�)GF

!(�)

!(

!(

!(

!(

!(!(

!(

!(

!(�)

!(

!(�)

!(�)

GF !(

GF

GF!(�)

GF

!(�)

GF

!(

!(�)

GF

GF

!(�)

GF

!(

GF

!(

!(�)

!(

!(

!(�)!(�)

GF

!(�)�)

!(

!(�)

!(�)

!(�)

!(�)

GF

!(

!(

!(GF!(

!(�)�)

!(

!(

!(�)

!(�)

!(

!(

GF

GF

!(

GF

!(�)�)

GF

GF

!(

GF

!(

GF

GF

!(!(

GFGFGF

!(�)!(�)

!(

GF

GF

!(

GF

!(�)

!(

�)

!(

GF

GF

GF

!(�)

!(�)

!(�)

GF

!(�)�)

GF

!(

!(�)�)

GF

!(

!(�)

!(�)

GF

!(

!(

!(�)

!(�)

!(

!(

!(�)

!(

!(�)

!(�)

!(

GF

!(�)

GF

!(�)

!(

!(�)

!(

GF

!(

!(�)

GF

!(

!(

GF

!(�)�)

GF

!(

GF

GF!(�) !(�)

!( !(

!(

GF

!(�)�)

!(

GF

!(�)

!(

!(�)

GF

GF

!(

!(�)�)

GF

GF!(

!(

!(�)GF

GF

!(

!(�)

!(

GF

!(

!(�)

GF

!(

GF

!(

!(�)�)

GF

!(�)

!(

!(�)

!(�)

!(

!(

!(

!(�)

!(

!(

!(�)

!(

GF

!(�)

!(�)

!(

!(�)

!(

!(

!(�)

!(

!(

�)�)

GF!(

!(�)

!(

!(

!(

!(

!(!(!(�)�)

!(�)!(�)

GF

!(

!(

GF

GF

!(

GF

GF

!(

!(

GF

!(

!(!(�)�)

!(

!(

�)

�)

GF

!(

GF

GF

!(

!(�)

!(

!(�)

!(

GF

!(

!(�)

!(�)

!(�)!(!(

!(

GF

!(�)�)�)�)

!(�)

!(

!(

GF!(

!(

GF

!(

!(

GF

!(�)!(�)

!(

!(�)

!(

!(

!(

!(�)

!(

GF

!(GF

!(

�)

!(

!(�)

!(�)

!(

!(

GF

!(�)�)

GF

!(

GF

!(�)

!(

!(�)

!(�)

!(�)

!(�)

!(

!(�)

GF

!(�)

!(�)

!(

!(

!(

!(

GF

!(

!(

!(�)

!(

!(

!(

!(�)�)

!(

!(�)

GF

!(�)

!(

!(

GF

!(!(

!(�)

!(

!(

GF

GF

GF

!(�)

!(

!(

GF

!(

GF

!(�)

!(

!(�)

GF

!(�)�)

GF

!(�)

!(�)

!(�)!(

!(�)

GF!(

�)

!(

!(�)

GF

!(

GF

!(�)

GF

GFGF

!(

GF

!(�)

GF!(�)

GF

!(

!(�)

!(

!(

!(�)

!(�)�)

GF

!(!(�)

GF

!(!(

GF

GF

!(�)

!(

GF

!(�)

!(

GF

GF

GF

!(�)

�)

GF

!(

!(

!(�)�)�)

GF

!(�)!(�)

!(

!(

!(

�)

�)

GF

�)

!(

!(

GF

!(

!(�)

!(�)�)

!(

�)

!(

�)

GF

!(�)�)

�)

GF

GF

!(�)�)

�)

GF!(

�)�)

!(�)

GF

!(

!(

�)

�)

GF

!(

!(�)

!(

!(�)

GF

GF

GF

!(�)

GF

GF

GF

GF

GF

!(

�)�)�)!(

!(�)�)

�)

GF

�)

!(�)

!(

!(

!(�)

�)

!(

�)

!(�)

!(GF

!(

GF

�)

!(�)

GF

GF

!(�)

�)

!(!(!(!(!(

GF

!(

!(�)

!(�)�)

GF!(�)

GF

!(

!(�)

GF

�)

!(�)

�)

�)�)�)

�)

!(

!(�)

GF

!(�)�)GF

GF

!(�)

!(

�)�)

!(

!(�)

!(�)GF

GF

GF!(

!(

!(

�)

�)

GF

�)�)�)

!(

!(�)

GF

GF�)

�)

!(

!(�)

!(�)

!(�)

GF

GF

!(

GF

GF

GF

!(�)

!(�)

!(�)

�)�)�)�)

GF

!(�)�)�)

!(�)

!(

!(

!(!(

!(!(

�)

�)�)

�)�)�)

GF

GF

!(�)

!(�)

�)

!(

!(

!(�)!(�)

!(�)

!(

!(�)

!(�)

!(�)

!(�)

!(�)

!(�)�)�)

!(

GF

!(

!(�)

GF

!(�)

GF

GF

!(

GF

GF

!(�)

!(

GF

GF

!(�)

!(�)

!(�)

!(�)

�)

!(

GF

�)

GF

!(�)�)!(�)

�)�)GF

!(

�)

!(�)

!(�)�)

�)

GF

!(!(!(�)

GF

!(�)

�)

�)�)

!(�)

GF

!(�)

GF

GF

!(�)

!(�)

�)

!(�)�)

�)

GF

GF

GF

!(

!(

GF

!(�)

GF

GF

�)�)

!(

!(�)

!(

!(

!(

GF

�)�)

GF

!(

�)

!(�)

�)

�)�)�)

GF

�)

�)�)�)�)

!(�)

GF

GF

�)

!(�)

�)

!(

GF

GF

�)�)�)

�)

�)

!(�)

!(�)�)

!(

�) GF

�)

GF!(

!(�)

�)

�)

!(�) !(

!(�)

!(

!(�)

!(

GF

!(

GF

!(�)

!(�)

!(

GF

!(

!(

�) !(�)

GFGF !(

!(�)

!(�)

GF

!(

�)

GF

!(�)

!(

GF

�)�)

GF

�)

!(

�)

�)

!(

�)

GF!(�)

GF

GF

!(�)�)

�)

!(�)

!(

GF

!(GF

�)

GF

�)

�)

�)�)

GF

!(

!(�)�)�)

!(

GF

GF

�)�)

!(�)

!(�)

!(�)

GF

�)

GF

GF

�)�)

!(�)�)

!(

!(�)

!(�)

GF

�)

!(

�)

�)

�)

GF

!(�)

GF

GF

!(�)

�)

!(

GF

!(

!(�)

�)�)

!(�)

GF

!(�)

!( !(!(�)�)

!(�)

GF

!(!(

GF

GF

!(�)

!(

�)�)

!(�)

�)�)

!(�)

�)

�)�)

�)�)GF

�)

�)

GF

!( !(

GF

!(

GF

!(

�)

�)!(

GF

�)

!(�)

GF

�)

�)�)�)

!(�)

!(�)

!(�)

GF

!(�)

GF

GF

!(�)

�)

!(�)�)�)�)�)

!(

GF

!(

!(

!(�)

!(�)

GF

�)�)

!(�)

GF

GF

�)

!(

!(�)

GF

�)

�)�)

!(�)�)�)

GF

!(�)!(�)

GF

GF

GF

!(�)�)

GF

!(�)�)�)

!(

�)�)�)

�)

!(�)

!(

GF

GF

�)

GFGF

!(

GF

GF

GF

!(

GF

!(

GF

GF

�)�)

GF

!(�)

!(

!(

GF

!(

�)�)�)

!(

GF

!(

GF

!(�)

�)

!(�)�)

!(�)

!(�)

�)

!(�)!(

�)

!(

�)

!(�)

�)

!(

!(

!(

!(

�)

GF

!(

!(�)

�)�)

!(!(�)�)�)

�)

!(

!(

!(�)

!(

GF

!(�)�)

!(�)�)�)

!(�)

!(

!(�)

!(�)

!(�)!(�)

!(�)�)

�)�)

�)!(

!(

!(�)

!(

�)

�)

!(�)!(

�)�)

!(

!(

�)

!(�)

!(

�)

�)�)�)�)�)

�)

!(

!(�)

�)!(

!(

!(�)

!(

!(GF !(

!(

!(�)

GF

!(

�)�)

�)

!(�)

�)�)!(�)�)�)

�)

�)

!(

!(�)

�)

!(�)

!(GF

�)

!(�)

!(

�)

!(�)

!(

GF

!(

!(!(

!(

�)

!(

!(

�)

!(

!(

�)

�)

�)

!(

!(�)

!(

!(�)

�)

�)

�)

!(

!(

!(�)

!(

!(�)�)�)

�)

!(

!(�)

�)�)�)

!(

!(

!(�)�)

�)

!(

�)�)

�)�)

!(

�)

!(

�)

!(�)�)

!(�)

!(�)

!(GF

�)�)�)

!(

�)

!(�)

!(

!(�)

!(�)

�)

�)�)

!(�)

GF

!(�)

�)

�)

!(�)

�)�)

�)�)

!(�)

!(

!(

!(!(�)�)

�)

�)

!(�)

GFGF

!(�)

!(�)

!(�)

�)

�)

!(�)

!(�)�)

�)�)

!(

�)

!(�)�)

!(�)

�)

�)

�)!(

!(

�)

�)

!(�)

!(

�)�)�)

�)

!(�)

�)�)

!(

!(

�)�)�)

!(�)!(�)

!(

�)

�)

�)

�)�)

�)

!(

!(

!(

!(�)�)�)

�)�)�)�) �)

GF

GF

GF

GF

GFGF

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(!(

!(

!(

!(

!(

!(!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(!(

!(

!(!(

!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(!(

!(

!(

!(

�)

�)

�)

�)

�)

�)�)�)�)

�) �)

�)

�)

�)

�)�)�)

�)

�)�)

�)

�)

�)

�)

�)

�)

�)

�)

�)�)

�)

�)

�)�)�)

�)

�)

�)

�)

�)�)

�)�)�)�)

�)

�)

�)

�)

�)

�)

�)�)

�)

�)

�)

�)�)

�)

�)

�)

�)

�)

�)�)�)

�)

�)�)

�)

�)

Elliott Bay

Lake Washington

��5

��90

��5

�99

Renton



Tukwila

SeaTac

Burien

City of Seattle

City of Seattle

Map 9-9. Business inspections completed bySPU through December 2007

Business inspection locations, 2003 to 2007

�) Follow-up inspection

!( Full inspection

GF Screening visit




Norfolk SD

Slip 4

7th Ave S SD


Hamm Creek

Central KCIA

South KCIA


S 96th St SD



Road

Creek

City boundary


0 0.5 1Miles

0 0.5 1Kilometers

Source: Schmoyer (2008a)

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

350

6; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

GF

k

#*

9

k

#*

9k

#*

9

k

#*

9

k

#*

9

k#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

k

#*

9

Elliott Bay

Lake Washington

��5

��90

��5

�99

Renton



Tukwila

SeaTac

Burien

City of Seattle

City of Seattle

2127, Terminal 115 CSO (038)/

SW Kenny SD, King County/SPU

WF-10

WF-9

WF-1

WF-2

WF-8

WF-7

WF-3

WF-6

WF-4

WF-5

WF-11

2510

2147, SPU

2125, SPU

2112, SPU

2048 – NBF SD, SPU

S Brighton St CSO/SD, SPU

2155 – Diagonal Avenue S CSO/SD (111), SPU, King County

2205

2100 (A), King County2080, King County

2062, SPU/King County EOF/SD

2095 – Norfolk CSO/SD (044), KC/SPU/Boeing

Map 9-10. Input locations for storm drainsub-basins in the lateral load analysis


0 0.5 1Miles

0 0.5 1Kilometers

Source: Schmoyer (2008a)Lateral load analysis information provided in Section 9.4.4.6 and Table 9-13.



Diagonal Ave S CSO/SD (2155)

Norfolk SD (2095)

Slip 4 (2048)

7th Ave S SD (2112)

West side public SDs (2147, 2125, 2510)

Hamm Creek (2205)

Central KCIA (2062)

South KCIA (2080)

Remaining east side public SDs(S. Brighton St CSO/SD)

S 96th St SD (2100 (A))

Glacier Bay/SW Kenny SD (2127)



k

#*

9 CSO/storm drain

k

#*

9 EOF/storm drain

k

#*



Road

Creek

City boundarya Outfalls shown were identified during a City of Seattle low-tide surveyin 2003 (Herrera 2004). Some locations were initially identified usingdrainage maps from Ecology’s National Pollutant Discharge EliminationSystem (NPDES) permit files and other relevant agency databases.These locations were later surveyed in the field. Review of agency filesand interviews with agency and Lower Duwamish Waterway Group(LDWG) personnel provided additional outfall-specific information.Some locations were field-verified by LDWG members; some additionaloutfall locations were identified during these subsequent verifications.The outfall layer is meant to serve as a snapshot of outfall conditions atthe time the survey was completed (2003). More recent information,when available, is reflected in the outfall discussions in Appendix I.

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

350

7; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

!.

!.!.

!.!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.!.

!.

!.

!.

!.!.

!.

!.!.!.!.

!.

!.

!.!.!.

!.

!.

!.

!.

!.!.

!.

!.

!.!.

!.

!.

!.

!.

!.!.!.

!.

!.!.!.

!.

!.

!.

!.

!.

!.

!.!.!.!.!.!.!.!.

�/�/

�/

�/

�/

�/�/

�/�/ �/

�/�/�/

�/�/

�/

!.!.

!.!.!.!.!.!.!.!.!.!.

!.!.!.!.

!.!.!.!.

!.!.!.

!.

!.

!.!.

!.

!.

!.

!.

!.!.

!.

!. !.!.

!.!.

!.

!.

!.

!.!.!.!.

!.!.!.

!.

�/ �/

�/�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/�/

�/�/

�/

�/

�/

�/�/

�/�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/�/

�/�/�/�/�/�/�/�/

�/�/

�/�/

�/

�/

�/ �/

�/

�/�/

�/

�/

�/�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/�/

�/

�/�/

�/

�/�/

�/�/

�/�/�/�/�/�/�/�/�/�/�/

�/

�/

�/

�/

�/

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.!.

!.

!.

!.!.!.!.

!.

!.

!.

!.

!.

!.

!.

!.

!.

!.!.

!.

!.

!.

!.!.!.!.!.!.!.

!.

!.!.

!.

!.

!.

!.

!.

!.!.!.

GF

GF

GF

GF

GF

GF

GF

GFGF

GF

GF

GFGF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GF

GFGF

GF

GF

GF

GF

GF

GFGF

GF

GF

GF

GF

GF

GF

GFGF

GF

GF

GF

GFGFGFGFGFGF

GF

GFGFGFGF

GF

GF

GF

GFGFGFGF

GFGFGFGF

GF

GF

GFGFGF

GF

GF

GF

Elliott Bay

Lake Washington

��5

��90

��5

�99

Renton



Tukwila

SeaTac

Burien

City of Seattle

City of Seattle

Map 9-11. Source-tracing program samplinglocations through December 2007

!. Onsite catch basin

!. ROW catch basin

GF In-line sediment trap

�/ In-line sediment




Norfolk SD

Slip 4

7th Ave S SD


Hamm Creek

Central KCIA

South KCIA


S 96th St SD



Road

Creek

City boundary


0 0.5 1Miles

0 0.5 1Kilometers

Source: Schmoyer (2008a)

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

350

8; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

�/

�/�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/ �/

�/

�/�/�/�/

�/

�/

�/�/�/

�/

�/

�/

�/�/

�/

�/

�/�/

�/�/�/

�/�/�/�/

�/

�/�/�/

�/

�/�/

�/

�/�/ �/

�/�/�/

�/�/�/

�/�/

�/

�/

�/�/

�/

�/

�/

�/

�/�/

�/

�/�/�/

�/�/

�/

�/

�/�/�/�/

�/�/

�/

�/�/

�/�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/�/

�/�/

�/

�/

�/

�/�/

�/�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/�/�/

�/ �/

�/

�/�/

�/

�/

�/�/�/

�/

�/�/

�/

�/

�/

�/�/�/

�/

�/�/

�/

�/�/�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/�/

�/

�/

�/

�/�/�/�/�/�/�/

�/�/�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/�/

�/�/�/�/

�/

�/�/

�/

�/

�/

�/�/�/�/�/�/�/

�/

�/�/

�/

�/�/�/�/

�/�/�/�/

�/�/

�/

�/

�/�/

�/�/�/�/

�/

�/�/

�/

�/

�/

�/

�/

�/�/�/�/�/�/

�/

�/

�/

�/

�/�/�/

�/

�/�/�/

�/

�/�/

�/

�/�/

�/�/�/�/�/�/�/�/

�/

�/

�/

�/�/�/�/�/�/�/

�/�/�/

�/

�/

�/

�/�/�/�/�/�/�/�/

�/�/

�/�/

�/�/�/

�/�/

�/�/�/�/

�/�/

�/�/

�/ �/�/�/ �/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/

Elliott Bay

Lake Washington

��5

��90

��5

��99

Renton



Tukwila

SeaTac

Burien

City of Seattle

City of Seattle

Map 9-12. Total PCB concentrations in sourcetracing sediment samples through December2007

Total PCBs (mg/kg dw)

�/ ≤ 1

�/ > 1 and ≤ 10

�/ > 10 and ≤ 100

�/ > 100 and ≤ 1,000

�/ > 1,000




Norfolk SD

Slip 4

7th Ave S SD


Hamm Creek

Central KCIA

South KCIA


S 96th St SD



Road

Creek

City boundary


0 0.5 1Miles

0 0.5 1Kilometers

Source: Schmoyer (2008b)

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

350

9; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

�/

�/�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/ �/

�/

�/�/�/

�/

�/�/�/

�/�/�/

�/

�/

�/

�/

�/

�/�/

�/�/�/�/

�/

�/�/�/�/

�/

�/

�/

�/

�/�/�/

�/�/�/

�/�/�/�/�/�/�/

�/�/�/�/

�/�/�/�/�/

�/

�/�/�/

�/�/

�/

�/�/

�/

�/

�/

�/

�/�/

�/

�/�/

�/

�/�/�/�/

�/�/�/

�/�/

�/

�/

�/�/�/

�/�/

�/�/

�/�/

�/

�/

�/

�/

�/�/�/�/

�/�/�/�/�/�/

�/�/�/�/

�/

�/

�/

�/�/�/�/

�/

�/�/�/ �/�/

�/�/�/

�/�/�/�/

�/�/

�/

�/

�/�/

�/�/

�/

�/

�/�/�/

�/�/

�/

�/�/

�/�/

�/

�/�/

�/

�/�/�/�/�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/�/

�/

�/

�/

�/�/�/

�/

�/

�/

�/

�/

�/

�/�/

�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/

�/�/�/�/�/�/

�/�/�/�/�/�/�/

�/�/�/�/�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/�/�/�/�/�/

�/

�/�/

�/

�/

�/

�/

�/

�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/

Elliott Bay

Lake Washington

��5

��90

��5

��99

Renton



Tukwila

SeaTac

Burien

City of Seattle

City of Seattle

Map 9-13. Mercury concentrations in sourcetracing sediment samples through December2007

Mercury (mg/kg dw)

�/ ≤ 0.41

�/ > 0.41 and ≤ 0.59

�/ > 0.59 and ≤ 1

�/ > 1




Norfolk SD

Slip 4

7th Ave S SD


Hamm Creek

Central KCIA

South KCIA


S 96th St SD



Road

Creek

City boundary


0 0.5 1Miles

0 0.5 1Kilometers


Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

351

0; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

gis\

Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

�/

�/

�/

�/

�/�/�/

�/

�/

�/�/

�/

�/

�/�/

�/

�/�/

�/�/�/

�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/

�/

�/

�/

�/�/�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/�/

�/�/

�/�/�/�/�/�/�/

�/�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/

�/

�/

�/

�/

�/�/�/�/

�/

�/

�/

�/

�/

�/�/

�/

�/�/�/�/�/�/�/

�/

�/

�/

�/

�/

�/

�/�/�/�/

�/

�/�/�/

�/

�/

�/�/�/�/�/

�/�/�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/�/�/

�/

�/�/�/�/�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/�/

�/

�/�/

�/

�/�/�/�/

�/

�/

�/�/

�/

�/

�/�/

�/

�/

�/

�/�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/�/

�/�/�/

�/�/

�/

�/

�/�/

�/

�/

�/ �/

�/�/

�/�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/

�/�/

�/

�/

�/

�/

�/

�/

�/

�/�/�/�/�/�/�/�/�/

�/

�/�/

�/�/�/�/�/

�/�/�/

�/�/

�/ �/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/�/

Elliott Bay

Lake Washington

��5

��90

��5

��99

Renton



Tukwila

SeaTac

Burien

City of Seattle

City of Seattle

Map 9-14. BEHP concentrations in sourcetracing sediment samples through December2007

BEHP (µg/kg dw)

�/ ≤ 1,300

�/ > 1,300 and ≤ 2,600

�/ > 2,600 and ≤ 10,000

�/ > 10,000 and ≤ 100,000

�/ > 100,000




Norfolk SD

Slip 4

7th Ave S SD


Hamm Creek

Central KCIA

South KCIA


S 96th St SD



Road

Creek

City boundary


0 0.5 1Miles

0 0.5 1Kilometers


Map 9-15. Diagonal Avenue S CSO/SD in-line source tracing sample locations

Source tracingsample location

Map 9-16. Storm drain source tracing sample locations in the Norfolk drainage basin

Legend

Source tracing sample location

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(!(!(!(!(!(!(!(!(!( !(

!(!(

!(

!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(!(!(!(!(!(!(!(

!(

!(!(!(

!(

!(!(

!(!(

!(

!(

!(

!(

!(

!(!(!(!(!(

!(

!(

!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

%,%,

%,%,

%,%, %,

%,

%,%,

%,%,

%,

%,

%, %,

%,

%,

%,

%,

%,

%,

%,

%,%,

%,

%,

%,

%,%,

%,%,

%,

%,%,

%,

%,%,

%,

%,%,

%,%,%,

%,

%,

%,

%,

%,

%,

%,

%,%,

%,%,%,%,%,

%,%,%,

%,%,

%,%,

%,%,

%,

%,

%,%,%,%,%,

%,%,%,%,%,%,%,%,

%,%,%,

%,

%,%,%,%,%,%,%,%,%,%,%,

%,%,%,%,%,

%,%,%,%,%,%,%,%,%,%,%,

%,%,%,%,%,%,%,%,

%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,

%,%,%, %,%,

%,%,%,%,%,

%,%,

%,

%,%,

%,

%,%,%,%,

%,%,

%,

%,%,%,

%,

%,

%,

%,%,

%,%,%,

%,%,

%,%,

%, %,

%,

%,

%,

%,

%,

%,

%,%,

%,

%,

%,%,

%,%,

%,

%,

%,%,

%,

%,%,

%,

%,

%, %,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,%,

%,%,

%,

%,

%,

%,

%,%,

%,%,%,

%,%,%,

%,%,

%,%,

%,

%,

%,%, %,

%,%,%,%,

%,%,

%,%,

%,

%,%,%,

%,%,%,%,%,%,%,

%,%,%,%,%,

Slip 1

Slip 2

Kellogg I.

Harbor I.

Slip 3

Slip 4

T-108 (formerChiyoda property)

PhilipServices

Corporation/Burlington

Environmental

GreatWestern

International

South Park Landfill

Long Painting

BoeingPlant 2

T-117(former

MalarkeyAsphalt)

AdvanceElectroplating

2.2

4.1

3.8

3.7

3.6

3.5

3.4

3.3

3.2

2.9

2.8

2.7

2.6

2.5

2.4

2.3

3.9

2.1

1.9

1.8

1.7

1.6

1.5

1.4

1.3

1.2

1.1

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.0

4.0

2.0

1.0

!(!(!(!(!(!(!(!(!(!(!(!(!(!(

!(

!(

!(

!(

!(

!(

!(

!(

!(

!(!(!(

!(!(!(

!(

!(

!(!(!(!(

!(!(

!(

!(!(!(

!(

!(!(

!(!(

!(

!(!(

!(!(

!(

!(!(

!(

!(!(

!(

!(

!(

!(

!(!(!(!( !(!( !(

!(

!(

!(

%,

%,%,

%,

%,

%,

%,

%,%,

%,

%,

%,

%, %,

%, %,

%,

%,%,%,

%,

%,

%,

%,%,

%,%,%,

%,

%,

%,

%, %,

%,

%,

%,

%,

%,

%,%,%,%,%,%,%,

%,%,%,%,%,%,

%,%,%,%,

%,%,%,%,%,%,%,%,%,%,%,

%,%,

%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,

%,%,%,

%,%,%,%,%,%,%,%,%,%,%,%,%,

%,%,

%,%,%,%,%,

%,%,

%,

%,%,

%,

%,%,%,%,

%,%,

%,

%,%,%,

%,

%,

%,

%,

%,%,

%,%,

%,

%, %,

%,

%,

%,

%,

%,

%,%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,

%,%,

%,

%,%,

%,%,%,%,%,%,

%,%,%,%,%,%,%,%,

%,%,%,%,%,%,%,%,

%,%,%,

%,

%,%,%,%,%,%,%,

%,

%,%,%,%,%,%,%,%,

%,%,%,

%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,

%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,

%,%,%,%,%,

%,

%,

%,

%,

%,

%,

%,%,%,%,%,

%,%,%,%,%,%,%,%,%,%,%,%,%,%,

%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,

%,%,%,%,%,%,%,

%,%,%,

%,%,%,%,%,%,

%,%,%,%,%,%,%,%,%,%,

%,

%,

%,%,%,%,%,

%,%,%,%,%,%,

%,%,%,%,%, %,

%,%,

%,%,%,%,%,

%,%,%,%,

%,%,%,%,

%,%,

%,

%,

%,

%,

%,%,%,%,%,%,

%,

%,

%,%,

%,%,

%,%,

%,%,%,

%,

%,

%,%,%,%,%,%,%,%,%,%,

%,%,

%,

%,%,%,

%,%,%,

%,

%,%,

%,

%,%,%,%,%,

%,%,%,%,%,%,

%,%,

%,%,%,%,%,%,

%,

%,%,

%,

%,%,%,%,%,%,%,

%,%,

%,

%,

%,%,

%,%,%,%,%,%,%,%,%,

%,%,%, %,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,%,

%,

%,

%,

%,%,%,%,

%,

%,

%,%,

%,%,

%,%,%,%,%,

%,

%,%,%,%,%,%,%,%,

%,%,%,%,%,

%,%,%,%,

%,

%,

%,%,

%,

%,%,%,

%,

%,%,

%,%,

%,%,%,

%,%,%,

%,

%,

%, %,

%,%,%,%,%,%,%,%,%,%,%,%,

%,%, %,

%,

%,

%,

%,

%,

%,%,%,

%,%,

%,%,%,%,

%,%,%,%,%,%,%,%,%,%,%,

%,%,%,%,%,%,

%,

%,

%,

%,%,

%,%, %,

%,%,%,

%,%,

%,%,

%,

%,

Slip 4

p 3

Slip 6

UpperTurningBasin

PhilipServices

Corporation/Burlington

Environmental

Boeing

Plant 2/

Jorgensen

Forge

LongPainting

T-117(former

MalarkeyAsphalt)

Boeing Isaacson

PACCAR (formerKenworth Truck Co.)

Former Rhône-Poulenc facility

BoeingDevelopmental

Center

5.8

5.9

5.7

5.6

5.5

5.4

5.3

5.2

5.1

4.9

4.84.

7

4.6

4.5

4.4

4.3

3.9

3.7

3.6

3.5

3.4

3.3

5.0

Pre

pare

d by

CE

H, 0

7/15

/201

0; M

AP

#34

38; W

:\Pro

ject

s\00

-08-

06_D

uwam

ish_

RI\d

ata\

GIS

\Pha

se2

RI\S

ourc

e C

ontr

ol\S

ectio

n 9

±Map 9-17. Properties with documentedgroundwater information

±

Scale is the same for each inset map

0 1,500 3,000Feet

0 400 800Meters


%, Monitoring wella

!( Seep water sampling location

!( Porewater sampling location

Parcel with groundwater informationa

Tax parcelb

Navigation channel

River mile

Note: The labeled properties are those that were includedin the groundwater pathway assessment (Appendix G inWindward 2003a).

a Well coordinates were provided by the Port of Seattle forthe T-117 site, and by Boeing for North Boeing Field. Allother well locations were estimated from existing LDWRI/FS data gaps reports, SCAPs, and the LDW Phase 1RI (Appendix G in Windward 2003a). Locations areapproximate. Monitoring well location information is notavailable for all parcels.

b Tax parcel information was provided by Seattle PublicUtilities and King County. Some tax parcel polygons wereedited to conform to the LDW shoreline presentation. Acomprehensive survey of property-owner records was notconducted.

Sli

Documents

discharging to the LDW - ldwg.org RI/Final_LDW_RI_Map_Folio_4... · 3 . 5 2 . 5 1.5 1.0 5 . 0 4.0 3 .0 2 . 0 Ash Grove Cement Slip 1/Manson Glacier Northwest to Saint-Gobain Glass