|
Iluka Resources Ltd - Eneabba West Mine Closure
Iluka resources operated the Eneabba West mineral sand mine from 1990 to 1999, as a dredge-mining and heavy-mineral concentrating operation. Up to 2 GL/annum of groundwater was extracted from the site and from the Yarragadee Formation to the east of the Brand Highway.
On cessation of mining, the water-supply borefield was shut down and a monitoring programme was initiated in accordance with the Eneabba West Mine Closure Plan and the Eneabba Operations Groundwater Licence Operating Strategy (GLOS). Key elements of the monitoring programme include: monitoring of groundwater levels and salinities in ex-production bores, final void monitoring bores, and selected private bores, either quarterly or annually.Rockwater has conducted annual aquifer reviews for the Eneabba West Mine since it closed in 1999. These reviews include synthesis of monitoring data collected throughout the year, assessment of compliance by the client to meet monitoring requirements as outlined by the Department of Environment, and recommendations for altering the monitoring programme as deemed appropriate.
|
Landcorp- McCabe Street Development
A Landcorp industrial site in McCabe St, Mosman Park has been developed for residential release. Contaminated soil from the site was buried in a containment cell on site, and groundwater in the vicinity of the cell is monitored for possible contamination. Rockwater has been involved in the project since its inception and was responsible for the establishment of the groundwater monitoring network, including selection of appropriate bore locations, monitoring bore design, supervision of drilling and installation of dual-tube monitoring bores, and preliminary salinity profiling and groundwater sampling. Rockwater also provides ongoing groundwater sampling services to this project, with all samples collected, preserved and transported according to Australian Standards (AS/NZS 5567:1998 Water Quality Sampling series). |
|
 Groundwater monitoring at the McCabe Street Development | |
|
|
Norilsk Nickel - Black Swan Nickel Mine
Quarterly groundwater sampling is required from monitoring bores constructed around the tailings storage facilities at Black Swan Nickel Mine. In addition to providing technical consultancy on the construction of the monitoring bores, Rockwater is routinely contracted to sample the bores at the mine. Samples are collected, preserved and transported according to Australian Standards (AS/NZS 5567:1998 Water Quality Sampling series) and submitted for analysis of total dissolved solids, pH and metals. Rockwater has also been responsible for the assessment of the sampling results and annual and quarterly reporting to the Department of Environment. |
|
|
|
|
Karakin Lakes Horticultural Project
Karakin Lakes is located about 90 km north of Perth, just south of Lancalin. Under the current groundwater licence conditions, a rigorous monitoring programme is required to ensure protection of nearby wetlands and local groundwater resources. Rockwater helped develop the monitoring programme and network, and was commissioned to implement the groundwater monitoring requirements, including water-level measurements and groundwater sampling for salinity, nitrogen, and organo-chlorines and -phosphates. Rockwater is also responsible for collation and assessment of the data and providing an annual monitoring report to the Department of Environment.
Water Corporation - Jandakot Aquifer Storage and Recovery
The Water Corporation of Western Australia is currently conducting a major research project, investigating the potential for injection of potable water into the deep, confined Leederville aquifer in the Perth metropolitan region and its recovery for water supply. Rockwater was invited to act as the principal hydrogeological consultant to this project and was instrumental in its set up and the development of monitoring requirements. Extensive monitoring is required for the assessment of injection bore clogging, aquifer response and groundwater quality, and the site has been established with automated data loggers for the recording of water levels, injection and recovery flow rates, bore-head pressures, and water quality parameters including salinity and turbidity. In the initial stages of the project, Rockwater was responsible for the collection of groundwater samples and regional water levels; it now manages all groundwater monitoring operations and has trained Water Corporation staff in conducting non-standard type analyses such as Membrane Fouling Indices (MFI). Rockwater also provides direction and liaison between the Water Corporation and CSIRO with regard to ongoing water quality research. All data are assessed and reported by Rockwater, in consultation with Water Corporation hydrogeologists.
|
