January 2006 (PDF 2.9 MB) - Barrick Gold Corporation

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Cowal <strong>Gold</strong> Project – Cyanide Management Plan The ambient monitoring units will take continuous readings and display the results in the process control centre. In addition to the ambient monitors, employees may be required to carry personal monitoring units in designated areas. Both personal and ambient HCN gas monitoring units will trigger alarms at the National Occupational Exposure Limits detailed in the relevant MSDS (Appendix C). Ambient monitoring units will be equipped with a flashing light and siren. Personal monitoring units will vibrate and sound a high pitched alarm. Section 7.1.1 describes the procedure that will be followed in the event the ambient or personal monitoring units trigger an alarm, while Section 7.1.2 outlines the contingency measures available to reduce levels of HCN gas for employee safety. 6.4 DETECTION OF CYANIDE MOVEMENT BENEATH AND ADJACENT TO THE TAILINGS STORAGES Consent Condition 8.2(b)(v) requires a monitoring programme to be established for the detection of cyanide movement beneath and adjacent to the tailings storages. As discussed in Section 4.2.3.3, the tailings storage facilities were assessed in the Project EIS (North Limited, 1998) for their potential seepage impacts on groundwater (quality, flows and levels). Monitoring of CNWAD levels will be undertaken at a network of groundwater monitoring bores to monitor cyanide movement beneath and adjacent to the tailings storages, namely: • down-gradient bores P412 A & B, P414 A & B, P418 A & B; • up-gradient bores P555 A & B, P558; and • tailings storage monitoring bores MON-01 and MON-02. The locations of the groundwater monitoring bores are shown on Figure 3. The groundwater monitoring bores will be sampled for CNWAD quarterly. Sampling of the groundwater monitoring bores will be undertaken using the AS/NZS 5667:1998 Water Quality – Sampling series. In accordance with EPL 11912, analysis of the groundwater monitoring bores will be conducted using American Public Health Association (APHA) (1998 or subsequent version) Standard Methods for the Examination of Water and Wastewater. Water quality samples will be labelled and placed in a refrigerator within one hour (or chilled on ice and kept in the dark). Samples will be sent by the following working day for analysis at an off-site NATA-accredited laboratory. Regular water quality sampling of the water collected in the seepage cut-off drain will also be conducted and analysed for CNWAD levels. A laboratory CoC will be completed for each batch of samples. A copy of the CoC will be provided to the laboratory along with the water samples. A copy of the CoC will be retained on-site. In addition to the abovementioned bores, groundwater quality monitoring bores P415A, P415B, P416A, P416B, P417A and P417B (Figure 3) will also be monitored for CNWAD in accordance with EPL 11912. The CNWAD results that are obtained for the groundwater bores will be recorded and retained as required by EPL 11912. HAL-02-07/1/25/CMP-01-Q.DOC 20 BARRICK
532 000 E 50% 6 280 000 N 6 278 000 N 6 276 000 N LEGEND Mining Lease Boundary ML1535 Estimated Water Level Exceeded 50% of the Time Groundwater Bore (CN Level) Sampling WAD HAL-02-07 Task 25 CMP_002F P558 225 225 224 224 222 222 221 221 220 220 P555A P555B 220 220 220 220 534 000 E Travelling Travelling Stock Stock Reserve Reserve (TSR) (TSR) Northern Tailings Storage 223 223 221 221 222 222 534 000 E 218 218 Southern Tailings Storage 215 215 216 216 217 217 MON 02 P418A P418B MON 01 214 214 212 212 213 213 P414A P414B P412A P412B Mine Mine Access Access Road Travelling Travelling Stock Stock Reserve Reserve (TSR) (TSR) 211 211 219 219 220 220 221 221 222 222 223 223 224 224 225 225 226 226 215 215 212 212 217 217 218 218 213 213 217 217 223 223 536 000 E Service Corridor 536 000 E 211 211 212 212 213 213 214 214 210 210 P416A P416B P417A P417B 210 210 209 209 216 216 208 208 Northern Waste Emplacement Process Plant Area Southern Waste Emplacement 215 215 ROM Pad 214 214 P415A P415B 213 213 212 212 211 211 Open Pit 210 210 75% 209 209 538 000 E 207 207 207 208 208 538 000 E 205 205 204 204 50% 75% Perimeter Waste Emplacement 0 0.5 Kilometres 90% 90% 540 000 E 1.0 6 280 000 N 6 278 000 N 6 276 000 N Cyanide FIGURE 3 Management Plan Location of Groundwater Bores used to Monitor CNWAD
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Page 3 and 4: Cowal Gold Project - Cyanide Manage
Page 7 and 8: 1 INTRODUCTION 1.1 PURPOSE OF THE P
Page 9 and 10: 1.2 PLAN OBJECTIVES AND SCOPE Cowal
Page 11 and 12: HAL-02-07 Task 25 CMP_003D Northern
Page 25: Cowal Gold Project - Cyanide Manage
Page 35 and 36: 9.2 INCIDENT REPORTING Cowal Gold P
Page 37 and 38: 10.2.2 Independent Monitoring Panel
Page 43 and 44: CODES OF PRACTICE Cowal Gold Projec
Page 45 and 46: OTHER GUIDELINES Cowal Gold Project
Page 49 and 50: Material Safety Data Sheet immediat
Page 51 and 52: Material Safety Data Sheet Standard
Page 53 and 54: Material Safety Data Sheet UN No: 1
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January 2006 (PDF 2.9 MB) - Barrick Gold Corporation

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