annexc - Newmont Mining Corporation

Surface Water Statistic
Village Wells
Monitoring Wells
Water Quality
Standards
Total # Samples Analysed
Total Non Detect
Maximum
Mean
Standard Deviation
Total # Samples Analysed
Total Non Detect
Maximum
Mean
Standard Deviation
USEPA MCL PRIMARY
USEPA MCL SECONDARY
WHO DWG
GSB/GWC DWG
U = value is detection limit
NA = not applicable
ND = no data
Shaded cell: value exceeds lowest std.
Bismuth,
Total
mg/L
Bismuth,
Dissolved
mg/L
Boron,
Dissolved
mg/L
Table C4-7
Groundwater Chemistry (2001-2007)
Akyem Project
Eastern Region, Ghana
Boron,
Total
mg/L
Cadmium,
Dissolved
mg/L
Cadmium,
Total
mg/L
Calcium
mg/L
Chloride
mg/L
Chlorine,
Total
mg/L
Chromium,
Dissolved
mg/L
Chromium,
Total
mg/L
COD
mg/L
Cobalt,
Dissolved
mg/L
3 17 72 78 86 106 123 117 134 86 103 95 86 105
3 17 72 53 38 48 0 0 0 67 78 13 70 79
0.00001U 0.00001U 0.1U 0.22 0.045 0.058 78.9 410 106.1 0.05 0.095 221 0.048 0.25
NA NA NA 0.10 0.01 0.01 31 26 3 0.01 0.01 24 0.01 0.01
NA NA NA 0.02 0.01 0.01 18 43 10 0.01 0.01 38 0.01 0.04
2 17 ND 32 17 62 60 81 19 17 64 10 17 66
2 17 ND 26 2 37 0 0 14 0 42 9 1 41
0.00001U 0.00001U ND 0.18 0.00014 0.074 76.3 102 0.1 0.0068 0.058 39 0.0048 0.012
NA NA ND 0.10 0.0001 0.004 30 10 0.1 0.003 0.005 13 0.001 0.003
NA NA ND 0.03 0.00005 0.01 21 14 3.E-17 0.002 0.008 9 0.001 0.003
0.005 0.005
250
0.1 0.1
0.5 0.5 0.003 0.003 0.05 0.05
0.3 0.3 0.003 0.003 250 0.05 0.05
Cobalt,
Total
mg/L
USEPA = U.S. Environmental Protection Agency
WHO = World Health Org.
DWG = Drinking Water Goal
GSB/GWC = Ghana Stds Board and Water Co.