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ARAPAHOE PRB <br /> CHLAB CORE LABORATORIES <br /> LABORATORY TEST RESULTS <br /> Job Number: 975461 Date: 10/16/97 <br /> CUSTOMER: Commercial Testing 8 Engineering PROJECT: ATTN: Mark Thrasher <br /> Customer Sample ID: 72-365095 Laboratory Sample ID: 975461-3 <br /> Date Sampled......: Date Received.......: 08/25/97 <br /> Time Sampled......: Time Received.......: 19:40 <br /> Sample Matrix.....: Ash <br /> TEST METHOD PARAMETER/TEST DESCRIPTION SAMPLE RESULT REPORTING LIMIT UNITS DATE TECH <br /> EPA 908.1 U308, Solid 11.0 1.0 ug/9 10/14/97 plj <br /> EPA 901.1 Bismuth 214, Error +/ Solid 0.8 pCi/g 10/08/97 ddp <br /> EPA 901.1 Bismuth-214, Solid 4.4 pCi/9 10/08/97 ddp <br /> EPA 900.0 Gross alpha, Solid 61.0 pCi/g 09/11/97 nrf <br /> EPA 900.0 Gross alpha, Error +/ Solid 16.3 pCi/g 09/11/97 nrf <br /> EPA 900.0 Gross alpha, LLD, Solid 13.7 pCi/g 09/11/97 nrf <br /> EPA 900.0 Gross beta, Solid 24.8 pCi/g 09/11/97 nrf <br /> EPA 900.0 Gross beta, Error +/-, Solid 6.3 pCi/g 09/11/97 nrf <br /> EPA 900.0 Gross beta, LLD, Solid 8.3 pCi/g 09/11/97 nrf <br /> EPA 901.1 Lead-210, Solid 4.8 pCi/g 10/08/97 ddp <br /> EPA 901.1 Lead-210, Error, Solid 2.7 pCi/g 10/08/97 ddp <br /> EPA 901.1 Lead-212, Solid 7.4 pCi/g 10/08/97 ddp <br /> EPA 901.1 Lead-212, Error +/-, Solid 3.8 pCi/g 10/08/97 ddp <br /> EPA 901.1 Lead-214, Solid 4.2 pCi/g 10/08/97 ddp <br /> EPA 901.1 Lead-214, Error +/ Solid 0.6 pCi/g 10/08/97 ddp <br /> EPA 901.1 Radium-226, Activity, Solid <15.1 pCi/g 10/08/97 ddp <br /> EPA 901.1 Thallium 208, Solid 4.6 pCi/g 10/08/97 ddp <br /> EPA 901.1 Thallium 208 error, Solid 1.0 pCi/g 10/08/97 ddp <br /> mod. HASL 300 Thorium-228, Solid 1.1 pCi/g 09/18/97 nrf <br /> Md. HASL 300 Thorium-228, Error +/-, Solid 0.7 pci/g 09/18/97 nrf <br /> mod. HASL 300 Thorium-228, LLD, Solid 1.0 pCi/g 09/18/97 nrf <br /> Md. HASL 300 Thorium-230, Solid 3.3 pCi/g 09/18/97 nrf <br /> mod. HASL 300 Thorium-230, Error +/-, Solid 1.5 pCi/g 09/18/97 nrf <br /> Md. HASL 300 Thorium-230, LLD, Solid 0.7 pCi/g 09/18/97 nrf <br /> od. HASL 300 Thorium-232, Solid 2.8 pCi/g 09/18/97 nrf <br /> Page 5 <br />