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file | filename |
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EX-31.4 - EX-31.4 - Nuverra Environmental Solutions, Inc. | nes_2021xex314.htm |
EX-31.3 - EX-31.3 - Nuverra Environmental Solutions, Inc. | nes_2021xex313.htm |
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file | filename |
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EX-31.4 - EX-31.4 - Nuverra Environmental Solutions, Inc. | nes_2021xex314.htm |
EX-31.3 - EX-31.3 - Nuverra Environmental Solutions, Inc. | nes_2021xex313.htm |
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