1997-09-22_GENERAL DOCUMENTS - M1974052

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ARAPAHOE BOTTOM ASH PRB CpLAB CORE LABORATORIES L A B O R A T O R Y T E S T R E S U L T S Job Number: 975461 Date: 10/16/97 CUSTOMER: Commercial Testing 8 Engineering PROJECT: ATTN: Mark Thrasher Customer Sample ID: 72-365096 Laboratory Sample ID: 975461-4 Date Sampled......: Date Received.......: 08/25/97 Time Sampled......: Time Received.......: 19:40 Sample Matrix.....: Ash TEST METHOD PARAMETER/TEST DESCRIPTION SAMPLE RESULT REPORTING LIMIT UNITS DATE TECH EPA 908.1 U308, Solid 11.0 1.0 ug/g 10/14/97 pli EPA 901.1 Bismuth 214, Error +/ Solid 1.1 PCi/g 10/08/97 ddp EPA 901.1 Bismuth-214, Solid 5.3 pCi/g 10/08/97 ddp EPA 900.0 Gross alpha, Solid 47.9 pCi/g 09/11/97 nrf EPA 900.0 Gross alpha, Error +/ Solid 15.2 pCi/g 09/11/97 nrf EPA 900.0 Gross alpha, LLD, Solid 14.1 pCi/g 09/11/97 nrf EPA 900.0 Gross beta, Solid 34.5 pCi/g 09/11/97 nrf EPA 900.0 Gross beta, Error +/-, Solid 7.0 pCi/g 09/11/97 nrf EPA 900.0 Gross beta, LLD, Solid 8.8 pCi7g 09/11/97 nrf EPA 901.1 Lead-210, Solid 8.5 pCi/g 10/08/97 ddp EPA 901.1 Lead-210, Error, Solid 3.7 pCi/g 10/08/97 ddp EPA 901.1 Lead-212, Solid 5.8 pCi/g 10/08/97 ddp EPA 901.1 Lead-212, Error +/-, Solid 5.0 pCi/g 10/08/97 ddp EPA 901.1 Lead-214, Solid 4.7 pCiyg 10/08/97 ddp EPA 901.1 Lead-214, Error +/ Solid 0.8 pCi/g 10/08/97 ddp EPA 901.1 Radium-226, Activity, Solid <26.0 pCi/g 10/08/97 ddp EPA 901.1 Thallium 208, Solid 6.0 pCi/g 10/08/97 ddp EPA 901.1 Thallium 208 error, Solid 1.9 pCi/g 10/08/97 ddp mod. HASL 300 Thorium-228, Solid 3.6 pCi/g 10/02/97 nrf mod. HASL 300 Thorium-228, Error +/-, Solid 1.2 pCi/g 10/02/97 nrf mod. HASL 300 Thorium-228, LLD, Solid 0.7 pCi/9 10/02/97 nrf mod. HASL 300 Thorium-230, Solid 5.5 pCi/g 10/02/97 nrf mod. HASL 300 Thorium-230, Error +/-, Solid 1.7 pCi/g 10/02/97 nrf mod. HASL 300 Thorium-230, LLD, Solid 0.5 pCi/g 10/02/97 nrf d. HASL 300 Thorium-232, Solid 3.7 pCi/g 10/02/97 nrf Page 7