HYDRO23038

• Permit No: M2003091
• IBM Index Class Name: Hydrology
• Doc Date: 3/17/2004
• Doc Name: Duckworth Pit Groundwater Study
• From: Lafarge West Inc.
• To: DMG
• Media Type: D
• Archive: No

TABLE OF CONTENTS
INTRODUCTION ........................................................................... 1
EXISTING HYDROGEOLOGIC CONDITIONS .........................2
DUCKWORTH PIT GROUNDWATER MODEL .........................3
MODEL DEVELOPA~Nr- ASSl1MI'TIONS ...............................................................................................................................................3
MODEL DEVELOPMEM' - CONC£PTUALIZA'nON AND CAI7BRA77ON .............................................................................................5
$IMUfA770N O3~ IMI'ACIS OF MIMNG OPERA77GN ..............................................................................................................................5
$IMUTA710N OI~ R1:QAMA710N OF 7F~ $I7E ........................................................................................................................................6
$ENSI'71 VI'IY ANALYSIS ...............................................................................................................................................................................6
CONCLUSIONS AND RECOMMENDATIONS ..........................8
TABLE OF FIGURES
FIGURE-1 ................................................................GENERAL VICINITY MAP
FIGURE-2 ....................................................................CONCEPTUAL MODEL
FIGURE-3 .......................................HISTORIC GROUNDWATER ELEVATIONS
FIGURE-4 ....................................... BASELINE ELEVATION CONTOURS
FIGURE- 5 ...................MINING GROUNDWATER E LE NATION CONTOURS
FIGURE-6 ........................... RECLAMATION GROUNDWATER CONTOURS
Lafarge West, Inc. Applegate Group, inC.
Duckworth Pit Groundwater Study March, 2004