RESPONDENT DISCHARGED HARMFUL QUANTITIES OF OIL FROM THEIR FACILITY THAT COULD REASONABLY BE EXPECTED TO REACH NAVIGABLE WATERS OF THE UNITED STATES OR AJOINING SHORELINES. Based on information provided by Montana DEQ regarding its inspection of this facility on August 5, 2009, a CWA Section 308 Information Request was sent to this facility in September 2010. In its response to this request, Summit Aeronautics indicated 'N/A to the question regarding whether there was a SPCC Plan for this facility. Based on this facility's storage capacity and proximity to water, this facility is subject to SPCC regulations. This facility was purchased by The Boeing Company on December 21, 2010. At the time of this purchase the facility did not have a Spill Prevention, Control and Countermeasure (SPCC) Plan in place; therefore, EPA requested a SPCC plan. Subsequently, the facility provided a plan, dated April 2011, to EPA Region 8 on March 5, 2012. This plan contained several deficiencies. A revised plan, dated April 11, 2012, was subsequently submitted to EPA Region 8.