
A hoe-ram pulverizes the Imhoff tank's concrete floor.
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Approaching a gas vent while performing quarterly monitoring.
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Locating an underground utility by hand.
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Performing annual maintenance at the Site weather station. |

Performing geophysical tests on Viscose Basin No. 9.
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Beneficially reusing clean concrete and brick as fill in Sulfate
Basin No. 1. |