Page 450 - Materials Chemistry, Second Edition

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Hazardous Waste Generator Requirements 421

FIGURE A.12.6 Hazardous waste storage area.
Photo by Theresa M. Pichtel.

in order to neutralize it. This neutralized mixture of approximately pH 6.5 has been disposed on the
company’s property using a permitted deep-well injection system.
For financial reasons, the facility owner abandoned the company premises. State inspectors
quickly detected the presence of liquids in most of the facility tanks. The owner was required to
return and conduct a waste determination for all tanks. In the neutralization tank, liquids failed the
TCLP test for chromium. Since the contents of these tanks have consistently been deep-well-
injected, there was concern that high levels of chromium were also being injected
During an interview with an inspector, the owner stated that “We don’t know how that
chromium got there.”