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EPA takes action to rescind WOTUS rule
The U.S. Environmental Protection Agency (EPA), Department of Army and Army Corps of Engineers are proposing a rule to rescind the Clean Water Rule and re-codify the regulatory text that existed prior to 2015 to define “waters of the United States,” or WOTUS.
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Cemex to shut down last US coastal mine
The California Coastal Commission reached a proposed settlement agreement with Cemex to shut down sand extraction at the company’s Marina, California-based mine by the end of 2020. Get more details on the agreement.
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When to use TDR, ultrasonic or microwave radar level devices
Consider the role of continuous level measurement and redundant point level detection for bins and silos, writes Hawk Measurement America president Jack Evans in the July issue of Pit & Quarry. Evans says there isn’t one right technology but there are some key considerations in examining the instrumentation.
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