PERMFILE55140

• Permit No: C1996084
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 07 GROUNDWATER TECHNICAL REPORT
• Media Type: D
• Archive: No

Larenciro Canvon Mine - Graund}varer Terhnica/ Renott
• Data was collected from the windmills on August 28, 1996. Each of the windmills were
monitored once for field parameters. Water samples were obtained for laboratory analyses from
WMLPC-1 and WMCWC-1. A summary table showing the results from the windmills is included
in Appendix GW-2.
u
C J
TABLE GW-5
LORENCITO CANYON MINE
STATISTICAL PARAMETERS REPRESENTING 35 WATER SAMPLES
COLLECTED DURING REGIONAL STUDY'
Constituent Mean Standard
Deviation Range Units
Specific
Conductance
1825.6
2104.0
430.0-8000.0
umhos/Cm
H 7.21 1.O1 5.6-11.5 M /I
Dissolved
Ox en 3.85 2.47 1.0-7.9 Mg/I
HCO 563.8 698.9 50.0-3206.0 M /I
AI L.03 3.32 0.00-.38 M /I
Ca 82.66 112.13 1.8-560.0 M /1
Na 286.3 418.5 17.0-1800.0 M /I
K 9.1 36.7 0.9-220.0 M /I
Fe 0.31 0.47 0.01-2.30 M /I
M 19.8 23.4 0.2-100.0 M /I
Mn 0.030 0.038 0.000-1.000 M /1
Cl 77.9 212.8 3.9-2600.0 M /I
SO 201.8 323.3 8.7-1700.0 M /I
NO 0.06 O.IL 0.03-0.07 M it
SiO, 10.7 4.5 0.6-24.0 M /I
F 1.30 1.35 0.0-6.1 M /I
Zn 162.3 29.3 3.0-1400.0 /I
B 61.7 70.5 10.0-380.0 /I
As 0.37 0.54 0.0-2.0 /I
Cd 2.8 3.1 1.0-17.0 /I
Se 2.2 3.7 0.16 /I
Pb 18.9 41.4 0.0-230.0 /I
A 0.03 0.17 0.0-1.0 /l
Hardness
CaCO 300.0 323.0 6.0-1600.0 Mg/I
'After Howard, 1982
Groundwa¢rA75\December 9, 1996 14