Virtual Meeting Date: Wednesday, May 27, 2020
Virtual Meeting Time: 10:00 a.m. Central Time
Virtual Meeting Location: www.virtualshareholdermeeting.com/USWS2020

Notice of the change of location of the Annual Meeting to a Virtual-only Stockholder Meeting

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2020 Proxy Statement

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2019 10-K

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2019 Proxy Statement

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2018 10-K

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