Figure 1. Location map of the existing Glacier Northwest DuPont mine site, proposed mine expansionarea, and limit of surface water effects due to aquifer drawdown, Dupont, Washington.

Center Drive

N

Map s

ourc

e: M

apte

ch

US

GS

(1994)

Topogra

phic

Series

TM

R

55

06

-01

-05

/rtb

/HE

C-R

/02

-02

40

3-0

00

-05

2-0

01

/Te

ch

Re

po

rt

SequalitchewLake

Pug

et S

ound

Ft. L

ew

is D

ivers

ion

Can

al

0 1000 2000 Feet

Approximate scale

Existing mineprocessing plant

Active mine site

NisquallyDelta

Fort LewisLandfill No. 5

Limit of surface water effectsdue to aquifer drawdown

Du

Po

nt-S

teila

co

oo

m R

d

West

EastEdmondMarsh

railroad grade

Wetland 1D

Former site of DuPontWork Explosions Facility

BrackishMarsh

Proposed mineexpansion area

BellMarsh

Kettle Wetlandand buffer

miles

ProjectArea

CANADA

VancouverIsland

Bellingham

Everett

Seattle

Tacoma

OlympiaMt.

Rainier

Washington

Columbia River

Oregon

N0 50PACIFIC

OCEAN

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