Water Yield Tester - Gauteng
M&T Developments
Borehole test pumping Testing of boreholes in accordance with The South African National Standard for development, maintenance and management of ground water resources (SANS10299-4) Types of tests: Step draw down test (multiple test rate) This test is the first test that is done during test –pumping in order to check the hydraulic efficiency of the borehole and to determine the discharge rate needed for the constant discharge test. Constant discharge test This test is used to determine how much water the aquifer can yield on a long-term basis. Recovery Test Upon completion of the constant discharge test, when the pump is switched off, the water level recovery is measured. Extended step-drawdown test This test is designed of application in specific cases only, namely where the expense of a constant discharge test is not warranted but more information about the aquifer is needed than the step-drawdown test alone can give Installation of a variety of borehole pumps. Collecting samples for quality testing Compilation of a report complying with industry standards, computer literate. Certifying the safe, sustainable yield of the borehole. Servicing, repair and maintenance of equipment used for borehole testing. Monitoring of boreholes and data collection. Must be able to operate GPS and map reading and interpretation. Code 10 drivers licence. Willing to work 24 hour shifts
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