REP45592

• Permit No: C1992081
• IBM Index Class Name: Report
• Doc Date: 2/18/2003
• Doc Name: 2002 Annual Hydrology Report
• From: Montgomery Watson Harza
• To: DMG
• Annual Report Year: 2002
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

Appendix D-4
HAYDEN GULCH TERMINAL, INC.
GROUND WATER MONITORING WELL FIELD DATA (1)
SAMPLE SAMPLE DEPTH TO WATER COND pH TEMP
SITE DATE feet (2) umohs/cm s.u. deg. C
HGDALI 06/30/93 2.61 NM (3> 6.4 17.2
HGDALI 05/04/94 3.04 47700 7.21 11.6
'
HGDALI 10/04/94 4.24 42000 6.83 15.2
HGDALI 05/04/95 -0.42 17000 7.92 8.1
HGDALI (3) 10/05/95 1.61 48800 7.14 7.7
HGDAL2 06/30/93 4.34 15700 6.4 12.8
HGDAL2 05/04/94 4.11 22400 7.06 10.2
HGDAL2 10/04/94 5.98 20300 6.43 14.4
HGDAL2 05/04/95 0.67 23600 7.04 10.2
HGDAL2 (3) 10/05/95 4.79 38700 6.84 8.8
' HGDAL3 (4) 11/22/93 5.38 12700 7.0 9.6
HGDAL3 05/04/94 4.62 14170 7.37 9.6
HGDAL3 10/04/94 7.47 12400 6.57 17.6
'
HGDAL3 05/04/95 0.92 15600 7.29 8.1
HGDAL3 10/05/95 7.41 14700 7.0 10.0
HGDAL3 05/08/96 5.64 15250 7.0 8.4
'
HGDAL3 11!10/96 5.32 13310 6.87 9.8
HGDAL3 06/20/97 4.12 13620 8.47 15.8
HGDAL3 10/18/97 3.57 18400 7 12.8
HGDAL3 06/04/98 6.05 15200 7.02 7.2
HGDAL3 10/15/98 7.45 14300 6.92 12.5
HGDAL3 12/10/1999 7.3 13800 8.24 8.7
'
HGDAL3 5/24/2000 7.0 14550 7.05 13.8
HGDAL3 5/21/2001 6.95 14540 7.88 12.1
HGDAL3 10/21/2001 8.05 12370 7.38 11.5
HGDAL3 5/31/2002 7.15 12870 7.34 9.3
HGDAL3 10/28/2002 9.09 11090 6.98 10.6
Notes: (1) Fleld data collected tn' H GTI following purchase of the Hayden Gulch Loadout in 1 992.
' (2) Measurement represents depth from ground level. Negative number intlicetes the water level
in the monitoring well casing was above ground surtace.
(3) Monitodng ceased in October 1995.
' (4) Monitoring well HGDAL3 was completed and initially sampled in November 1993.

1 NM =Not Measured