Previous drilling of wells could only reach depths of 1,000 feet, but due to new pumping practices, water deeper than this can now be extracted.
以前钻井深度只能达到1000英尺，但由于有了新的抽水方法，现在可以抽取比这更深的水。
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For years the natural gas drilling industry has decried the lack of data that could prove-or disprove-that drilling can cause drinking water contamination.