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200'708364 Enclosure 2 Statement of MEC Removal 0 January 10, 2007 Mr. Al Kam CENWO -PM -HB (Kam) U.S. Army Corps of Engineers 106 South 15th Street Omaha, Nh 68102 -4978 Subject: 5X Certification at Load Lines 1 and 2 Asbestos - Containing Material Removal Project Cornhusker Army Ammunition Plant, Grand Island, Nebraska Contract W9128F -04 -D -0001, Delivery Order 0039 Dear Mr. Kam: This letter is being submitted to document the 5X certification activities completed by URS Group, Inc. (URS) at Load Lines I and 2 at the Comhusker Army Ammunition Plant (CHAAP) in Grand Island, Nebraska. This work was conducted as part of the Asbestos - Containing Material (ACM) Removal Project at Load Lines I and 2. During the period of June 18, 2006 through August 4, 2006, URS investigated and excavated three areas that were not previously 5X certified by MKM Engineers, Inc, (MKM), During the investigation and excavation operations, Unexploded Ordnance (UXO) Technicians visually inspected 100 percent of the excavated soil and debris for Munitions and Explosives of Concern (MEC) or MEC - related items. Once the soil was removed from the excavation, the UXO Technicians visually inspected the excavation for MEC and performed a magnetometer sweep. Excavation verification analytical samples were then collected from each area. Based on results of the 100 percent visual inspection, the magnetometer sweep, the analytical sampling, and concurrence from the United States Army Corp of Engineers (USACE) on -site representative, Mr. James J. Mars, the three areas are considered 5X certified. All 5X certification activities were completed in accordance with the ACM Removal Work Plan Addendum (URS 2006) and the Department of Defense Explosive Safety Board (DDESB) approved Explosives Safety Submission (ESS) for 5X certification of Load Lines 1 through 5 (MKM 2003). Detailed field documentation of the 5X certification activities will be provided in the ACM Removal Report. The three areas where URS completed 5X certification activities are referred to as "North Pit ", "South Pit ", and "West Pit ". Coordinates for theses three areas were provided by MKM and were marked in the field by URS prior to the start of field activities. The coordinates shown below delineate these three areas where URS provided 5X certification. In some cases, the actual final excavation limits extended beyond these coordinates (i.e., outside the area not previously 5X certified). Additional excavation beyond theses coordinates was conducted to remove ACM, construction debris, burned material, metallic anomalies, etc. All coordinates are in State Plane North American Datum (NAD) 1983, NE 2600, US Survey Feet. URS Corporation 12120 Shamrock Plaza Suite 300 Omaha, NE 68154 Tel 402.334.8181 Fax: 402.334.1984 Page 1 of 6 L