Problems with Continuous Fly Ash Level Measurement Until the mid 1980’s no one cared too much about the continuous level measurement and indication of Fly Ash. Fly Ash that was removed from the Precipitators was hauled off to a “pond” where it was dumped. The pond kept the ash from becoming air borne, and when one pond was full another was made. This cycle continued for many, many years. In the mid 1980’s the EPA decided that just dumping t

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