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5 HR Water Well Topics: Sinkholes, Seals, Liners, Disinfection, Boreholes Geophysics Tools and E-Logs

Original price was: $180.00.Current price is: $99.99.
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Water Well Drilling

7 HR Water Well Topics: Corrosion, Rehabilitation, Hydrogeology, Locating Wells, and Common Causes of Well Failure

Original price was: $255.00.Current price is: $155.00.
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8 HR Water Well Industry Health, Safety, Drilling Rigs, Pumps, Abandonment of Wells, and Arsenic Removal

Original price was: $290.00.Current price is: $174.99.
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