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.
Molybdenum,
Dissolved
mg/L
Molybdenum,
Total
mg/L
Table C4-7
Groundwater Chemistry (2001-2007)
Akyem Project
Eastern Region, Ghana
Nickel,
Dissolved
mg/L
Nickel,
Total
mg/L
Nitrate
mg/L
Nitrite
mg/L
Orthophosphorous
mg/L
Phosphorous,
Total
mg/L
Phosphate
mg/L
Potassium
mg/L
Salinity
mg/L
Selenium,
Dissolved
mg/L
Selenium,
Total
mg/L
86 104 86 108 257 219 93 78 161 123 167 86 105
86 98 52 65 4 77 25 32 10 0 0 81 85
0.01U 0.011 0.045 0.048 41 6 0.6 9 2.8 41 9 0.01U 0.025
NA 0.01 0.01 0.01 3.3 0.2 0.1 0.2 1 3 0.2 0.01 0.01
NA 0.004 0.01 0.01 4.9 1 0.1 1 1 5 1 0.004 0.01
17 66 17 66 80 81 ND 32 59 69 ND 17 62
16 63 0 40 19 69 ND 4 17 0 ND 15 45
0.001 0.054 0.0062 0.039 5 0.5 ND 2 1.72 42 ND 0.001U 0.032
NA 0.01 0.004 0.01 0.5 0.02 ND 0.3 0.2 4 ND 0.001 0.01
NA 0.01 0.001 0.01 1.0 0.1 ND 0.4 0.3 7 ND 0.0001 0.01
10 1 0.05 0.05
0.07 0.07 0.07 0.07 50 3 0.01 0.01
0.02 0.02 50 3 0.01 0.01
USEPA = U.S. Environmental Protection Agency
WHO = World Health Org.
DWG = Drinking Water Goal
GSB/GWC = Ghana Stds Board and Water Co.