Warning Letter involving CALUMET MONTANA REFINING, LLC. PHMSA's enforcement data identifies the cited regulations as 195.452(f)(8), 195.452(g)(4), 195.452(i)(3), 195.452(i)(4), 195.452(j)(2). The case was opened on 2006-05-03 and is reported as closed as of 2006-05-03. Open the official case record for notices, responses, orders, and the latest status.

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Retrieved: Aug 20, 2026
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