Since the GRO and DRO cleanup criteria are not risk-based, what is the appropriate application of this criteria in the RBCA process?
A. As stated above, the GRO and DRO scans are appropriate when there are aesthetic impacts (stained or odorous soils, groundwater with a sheen, objectionable taste and/or odor) but no contaminants are present above the Tier I RBSLs. The facility owner and his/her consultant has the option of conducting a toxicological study to develop risk-based criteria for GRO and DRO, subject to the approval of the DEQ. Q7. Do I have to test for methyl tertiary-butyl ether (MTBE) where there has been a release of unleaded gasoline at a UST. A. MTBE is now listed as one of the parameters to analyze for at unleaded gasoline releases. Testing is required unless the Owner/Operator (O/O) provides proof that MTBE was not used in the product released or initial testing demonstrates that MTBE is not present as a site contaminant. Please be aware, however, that gasoline product testing conducted by the Michigan Department of Agriculture has found MTBE to be present in gasoline that should not contain MTBE, p
Related Questions
- What is the process and criteria of evaluation that the Research Grant application goes through with the IAC and then with the Ethnic Studies Research Center?
- Where do I go for information about eligibility criteria, the application process and other exam administrative processes?
- When is it appropriate to use the Gasoline Range Organics (GRO) and Diesel Range Organics (DRO) methods?
