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annexc - Newmont Mining Corporation

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Surface Water Statistic<br />

Village Wells<br />

Monitoring Wells<br />

Water Quality<br />

Standards<br />

Total # Samples Analysed<br />

Total Non Detect<br />

Maximum<br />

Mean<br />

Standard Deviation<br />

Total # Samples Analysed<br />

Total Non Detect<br />

Maximum<br />

Mean<br />

Standard Deviation<br />

USEPA MCL PRIMARY<br />

USEPA MCL SECONDARY<br />

WHO DWG<br />

GSB/GWC DWG<br />

U = value is detection limit<br />

NA = not applicable<br />

ND = no data<br />

Shaded cell: value exceeds lowest std.<br />

Silver,<br />

Dissolved<br />

mg/L<br />

Silver,<br />

Total<br />

mg/L<br />

Silica<br />

mg/L<br />

Table C4-7<br />

Groundwater Chemistry (2001-2007)<br />

Akyem Project<br />

Eastern Region, Ghana<br />

Sodium<br />

mg/L<br />

Strontium,<br />

Dissolved<br />

mg/L<br />

Strontium,<br />

Total<br />

mg/L<br />

Sulfate<br />

mg/L<br />

Thallium,<br />

Dissolved<br />

mg/L<br />

Thallium,<br />

Total<br />

mg/L<br />

Tin,<br />

Dissolved<br />

mg/L<br />

Tin,<br />

Total<br />

mg/L<br />

Tungsten,<br />

Total<br />

mg/L<br />

Tungsten,<br />

Dissolved<br />

mg/L<br />

72 78 159 123 13 7 228 89 99 13 7 3 17<br />

72 78 0 0 0 0 31 89 99 10 6 1 7<br />

0.01U 0.01U 80 72 0.61 0.24 152 0.02U 0.01U 0.0001U 0.0002 0.00032 0.0013<br />

NA NA 28 19 0.3 0.1 9 NA NA 0.0001 0.0001 0.0001 0.0001<br />

NA NA 17 12 0.1 0.1 14 NA NA 0.00003 0.0001 0.0002 0.0003<br />

ND 33 45 69 17 2 77 17 62 17 53 2 17<br />

ND 30 0 0 0 0 28 15 59 17 49 1 7<br />

ND 0.01 37.3 40 459 0.251 73 0.00003 0.026 0.0001U 0.14 0.00004 0.00043<br />

ND 0.01 15 20 27 0.2 8 0.00001 0.005 NA 0.009 0.00003 0.0001<br />

ND 0.003 7 7 111 0.01 16 4.9E-06 0.006 NA 0.02 0.00002 0.0001<br />

0.002 0.002<br />

0.1 0.1 250<br />

200 250<br />

USEPA = U.S. Environmental Protection Agency<br />

WHO = World Health Org.<br />

DWG = Drinking Water Goal<br />

GSB/GWC = Ghana Stds Board and Water Co.

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