Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What analyses are required when closing a regulated UST?

April 26, 2017Analyses closing regulated UST

0

Posted

What analyses are required when closing a regulated UST?

1 Answer

0

Posted

Samples collected during the closure of regulated USTs containing petroleum must be analyzed for total petroleum hydrocarbons using an appropriate EPA or DEQ approved analytical method. Samples collected during the closure of regulated USTs containing regulated substances other than petroleum must be analyzed for the substances or constituents present in the tank. Please see Section 7 of the Storage Tank Program Technical Manual for additional information about tank closure requirements. Persons closing regulated USTs containing petroleum are required to collect soil or water samples from locations where a release would most likely be detected if one occurred. The samples must be analyzed for TPH by an EPA Method or a method approved by the Department of Environmental Quality (DEQ). Table 5-3 in the Storage Tank Program Technical Manual (Technical Manual) contains a list of analytical methods that are considered “approved” by DEQ. Persons closing regulated USTs containing non-petroleum