Proposed Resource Consent Conditions

112 Table 1: WTP Discharge Compliance Limits Parameter Treated Water Concentration (g/m3 unless otherwise stated) Operating Regime A Operating Regime B Operating Regime C Operating Regime D Operating Regime E Normal Compliance(1) Maximum (1) Normal Compliance(1) Maximum(1) Normal Compliance(1) Maximum(1) Normal Compliance(1) Maximum(1) Normal Compliance(1) Maximum(1) pH 6.5-9.5 6.5-9.5 6.5-9.5 6.5-9.5 6.5-9.5 Temperature <3oC rise <3oC rise <3oC rise <3oC rise <3oC rise <3oC rise <3oC rise <3oC rise <3oC rise <3oC rise Total Suspended Solids 10 50 8 40 8 40 8 40 8 40 Cyanide (WAD) 0.25 0.71 0.2 0.56 0.11 0.32 0.11 0.32 0.09 0.25 Iron 1.0 6.7 0.8 5.0 0.5 3.1 0.5 3.1 0.4 2.4 Manganese 1.0 1.3 0.8 1.0 0.5 0.6 0.5 0.6 0.4 0.5 Copper 0.07(2) 0.13(2) 0.055(3) 0.10(3) 0.033(4a) 0.06(4a) 0.033(4a) 0.06(4a) 0.025(4b) 0.05(4b) Nickel 1.2(2) 0.94(3) 0.55(4a) 0.55(4a) 0.42(4b) Zinc 0.8(2) 0.61(3) 0.36(4a) 0.36(4a) 0.27(4b) Ammonia Refer Table 3 Refer Table 3 Refer Table 3 Refer Table 3 Refer Table 3 Silver 0.02(2) 0.03(2) 0.017(3) 0.024(3) 0.01(4a) 0.014(4a) 0.01(4a) 0.014(4a) 0.007(4b) 0.011(4b) Antimony 0.23 0.1(5) 0.18 0.06(5) 0.10 0.06(5) 0.10 0.05 0.08 Arsenic 1.45 1.14 0.66 0.66 0.51 Selenium 0.15 0.27 0.12(5) 0.2(5) 0.07(5) 0.12(5) 0.07(5) 0.12(5) 0.05(5) 0.09(5) Mercury 0.0005(6) 0.0005(6) 0.0005(6) 0.0005(6) 0.0005(6) Cadmium 0.008(2) 0.007(3) 0.004(4a) 0.004(4a) 0.003(4b) Chromium (VI) 0.08 0.06 0.04 0.04 0.03 Lead 0.02(2) 0.018(3) 0.011(4a) 0.011(4a) 0.008(4b) Hardness Assumption 670 530 200(4) 315 243

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