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200708365 <br />Enclosure 2 <br />Statement of MEC Removal <br />0 <br />January 10, 2007 <br />Mr. Al Kam <br />CENWO -PM -FIB (Kam) <br />U.S. Army Corps of Engineers <br />106 South 15th Street <br />Omaha, NE 68102 -4978 <br />Subject: 5X Certification at Load Lines 1 and 2 <br />Asbestos - Containing Material Removal Project <br />Cornhusker Army Ammunition Plant, Grand Island, Nebraska <br />Contract W9128F-04 -D -0001, Delivery Order 0039 <br />I01Tiu =:�ii <br />This letter is being submitted to document the 5X certification activities completed by URS <br />Group, Inc. (URS) at Load Lines 1 and 2 at the Cornhusker Army Ammunition Plant (CHAAP) <br />in Grand Island, Nebraska. This work was conducted as part of the Asbestos - Containing <br />Material (ACM) Removal Proicct at Load Lines 1 and 2. <br />During the period of June 18, 2006 through August 4, 2006, URS investigated and excavated <br />three areas that were not previously 5X certified by MKM Engineers, Inc, (MKM). During the <br />investigation and excavation operations, Unexploded Ordnance (iJXO) Technicians visually <br />inspected 100 percent of the excavated soil and debris for Munitions and Explosives of Concern <br />(MEC) or MEC - related items. Once the soil was removed from the excavation, the UXO <br />Technicians visually inspected the excavation for MEC and performed a magnetometer sweep. <br />Excavation verification analytical samples were then collected from each area. Based on results <br />of the 100 percent visual inspection, the magnetomctcr sweep, the analytical sampling, and <br />concurrence from the United States Army Corp of Engineers (USAGE) on -site representative, <br />Mr. James J. Mars, the three areas are considered 5X certified. All 5X certification activities <br />were completed in accordance with the ACM Removal Work Plan Addendum (URS 2006) and <br />the Department of Defense Explosive Safety Board (DDESB) approved Explosives Safety <br />Submission (ESS) for 5X certification of Load Lines 1 through 5 (MKM 2003). Detailed field <br />documentation of the 5X certification activities will be provided in the ACM Removal Report. <br />The three areas where URS completed 5X certification activities are referred to as "North Pit ", <br />"South Pit ", and "West Pit ". Coordinates for theses three areas were provided by MKM and <br />were marked in the field by URS prior to the start of field activities. The coordinates shown <br />below delineate these three areas where URS provided 5X certification. <br />In some cases, the actual final excavation limits extended beyond these coordinates (i.e., outside <br />the area not previously 5X certified). Additional excavation beyond theses coordinates was <br />conducted to remove ACM, construction debris, burned material, metallic anomalies, etc. <br />All coordinates are in State Plane North American Datum (NAD) 1983, NE 2600, US Survey <br />Feet. <br />URS Corporation <br />12120 Shamrock Plaza <br />Suite 300 <br />Omaha, NE 68154 <br />Tel: 402.334.8181 <br />Fax: 402.334.1984 <br />Page 1 of 6 <br />,lam_ <br />