US Ecology, Inc. 10-K/A

FORM 10-K/A

EXHIBIT 31.1

EXHIBIT 31.2

XBRL TAXONOMY EXTENSION SCHEMA

XBRL TAXONOMY EXTENSION DEFINITION LINKBASE

XBRL TAXONOMY EXTENSION LABEL LINKBASE

XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE

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GRAPHIC

GRAPHIC

GRAPHIC

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