### Table 2: EPA Quality Assurance Audits by Site – October 2005 – September 2008

Site Date Purpose Argonne National Laboratory East September 12-14,
2006 The EPA audited the Central Characterization Project’s Quality Assurance program at the Argonne National Laboratory in Illinois. Reference EPA Air Docket No. A-98-49, II-A1-88. Carlsbad Field Office December 13-19, 2005 The EPA audited the DOE Carlsbad Field Office Quality Assurance Program to verify compliance with Nuclear Quality Assurance standards including Element 16, Corrective Action and Element 18, Audit. Reference EPA Air Docket No. A-98-49, II-A1-76. February 7-9 and 13,
2006 The EPA audited the DOE Carlsbad Field Office Quality Assurance Program Document, Rev. 7. Reference EPA Air Docket No. A-98-49, II-A1-79. January 23, 2007 The EPA audited the DOE Carlsbad Field Office Quality Assurance Program. Reference EPA Air Docket No. A-98-49, II-A1-90. January 15-17, 2008 The EPA aud ited the DOE Carlsbad Field Office Quality Assurance Program Document Rev. 9. Reference EPA Air Docket No. A-98-49, II-A1-100. August 27, 2008 The EPA audited the Carlsbad Field Office Central Characterization Project Quality Assurance Program. Reference EPA Air Docket No. A-98-49, II-A1-101. Hanford June 27-29, 2006 Th e EPA audited the Quality Assurance Program of the Hanford Site of the Department of Energy. Reference Air Docket No. A-98-49, II-A1-86 June 4-7, 2007 The EPA audited th e Quality Assurance program of the Hanford Site for the Waste Isolation Pilot Plant. Reference EPA Air Docket No. A-98-49, II-A1-95.
Idaho National Laboratory April 26, 2006 The EPA audited the Advanced Mixed Waste Treatment Plant QA program that provides oversight of waste characterization activities at the Idaho National Laboratory. Reference EPA Air Docket No. A-98-49,
II-A1-82. June 14, 2006 The EPA performed an audit of the Idaho National Laboratory for the Waste Isolation Pilot Plant. Reference Air Docket No. A-98-49, II-A1-87. April 21-23, 2007 The EPA audited the Central Characterization Project Quality Assurance Program at Idaho National Laboratory. Reference EPA Air Docket No. A-98-49, II-A1-96. August 22, 2007 The EPA performed a follow up audit of the Central Characterization Project Quality Assurance Program at the Idaho National Laboratory. Reference EPA Air Docket No. A-98-49, II-A1-96.
Los Alamos National Laboratory May 23-26, 2006 The EPA performed an audit of the Los Alamos National Laboratory Central Characterization Project Quality Assurance Program. Reference EPA Air Docket No. A-98-49, II-A1-84.

### Site Date Purpose April 24-27, 2007 The EPA audited the Quality Assurance Program of the Central Characterization Project at Los Alamos National Laboratory. Reference EPA Air Docket No. A-98-49, II-A1-94.
Los Alamos National Laboratory Carlsbad office June 6-8, 2006 The EPA audited th e Quality Assurance program of the Los Alamos National Laboratory Carlsbad Office that provides oversight of the transuranic waste inventoryestimate. Reference EPA Air Docket No. A-98-49, IIA1-85.

Oak Ridge November 13-15,
2007 The EPA audited the CCP QA program at ORNL. The audit showed that the QA program at ORNL is properly executed. Docket A-98-49, II-A1-99
Sandia National Laboratories February 12-14, 2008 The EPA audited the Quality Assurance program of the Sandia National Laboratories Quality Assurance Program for software used for the Waste Isolation Pilot Plant Performance Assessment for compliance with the requirements of Nuclear Quality Assurance standard, Quality Assurance Requirement for Computer Software for Nuclear Facility Applications. Reference EPA Air Docket No. A-98-49, II-A1-98. Savannah River Site November 21, 2005 The EPA audited the Savannah River Site Central Characterization Project Quality Assurance Program. Reference EPA Air Docket No. A-98-49, II-A1-77.
October 31 to November 2, 2006 The EPA performed an audit of the Central Characterization Project Quality Assurance Program at the Savannah River Site. Reference EPA Air Docket No. A-98-49, II-A1-89. February 22, 2007 The EPA audited the Savannah River Site Central Characterization Project Quality Assurance Program. Reference EPA Air Docket No. A-98-49, II-A1-89. Washington TRU Solutions January 13, 2006 The EPA audited the Washington TRU Solutions Quality Assurance Program at the Waste Isolation Pilot Plant. Reference EPA Air Docket No. A-98-49, II-A1-
76. April 25, 2007 The EPA audited the Washington TRU Solutions Quality Assurance Program at the Waste Isolation Pilot Plant. Reference EPA Air Docket No. A-98-49, II-A1- 92.