Table 3.3
Zone 14 Groundwater 20 th and 80 th percentile WQO values for EA-listed water quality indicators – EPP Water (Department of Environment and Heritage Protection, 2011)
Parameter / analyte
Shallow <30 m depth
Deep >30 m depth
20th percentile
80th percentile
20th percentile
80th percentile
pH value
7.50
8.10
7.50
8.10
Electrical conductivity @ 25°C
1,006 µS/cm
2,765 µS/cm
756
2,150
TDS 1
654 mg/L
1,797 mg/L 0.020 mg/L 0.091 mg/L 0.050 mg/L
491 mg/L
1,398 mg/L 0.057 mg/L 0.139 mg/L 0.050 mg/L
Manganese
0.000 mg/L 0.010 mg/L 0.010 mg/L
0.000 mg/L 0.020 mg/L 0.001 mg/L
Zinc
Copper
Table notes: 1. WQOs for TDS are not listed in the EPP. They have been estimated from EC assuming a conversion factor of 0.65 to convert EC in µS/cm to TDS in mg/L.
GHD | Heritage Minerals Pty Ltd | 12638246 | Groundwater Quality Review 2024 16
Powered by FlippingBook