Post date: Jul 14, 2012 6:49:48 PM
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www.michigan.gov/.../deq-rrd-OpMemo_2_Attachment4_283510_7...
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Oct 22, 2004 – This attachment applies to site assessments, site investigation ...Where more than one holding time is specified, all applicable ...... Organics,Wisconsin DNR, September 1995 for DRO and Modified GRO, Method for Determ .