Environmental

Washington's Department of Ecology requires property owners who discover underground storage tanks (USTs) on their property to:

AFill the tanks with sand and leave them in place
BNotify Ecology, assess for leaks, and comply with UST decommissioning regulations✓ Correct
COnly notify Ecology if the tanks have leaked
DImmediately excavate and dispose of the tanks independently

Explanation

Washington's UST regulations (WAC 173-360A) require owners to notify the Department of Ecology, assess the tanks for leaks, and follow proper decommissioning procedures. Unauthorized removal or abandonment can increase liability.

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