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<br />ENTTLE t~iTN. 6~LU SL <br />I.19-672-363 <br />BrCI"I"LE MOUNTAIN GO1,D COMPANY <br />March 1, 1993 <br />Mr. Larry Oehler <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />Re: Battle Mountain Resources, <br />DMG Permit No. M-88-112 <br />Changes to QAjQC Protocol <br />Dear Mr. Oehler: <br />i <br />i <br />MHR X72' 93 i l~ <br />14 hJo.u06 F.01 <br />Posblf" brand fax trensmina~ me n 7671 eo1 p.pe~ ~ Z <br />Th <br />arr~ t F m <br />eo. c . <br />Dept. Phone u <br />Fex a FpA x <br />t°,Y~ <br />'CG+' i wEd S O~ '1' ~ f ~ D CSMNP~ <br />Inc.~~(BMRI)~- San L >,a <br />Manual <br />During the February 19, 1993. meeting between DMG, BMR1C, ar)d <br />RCGfHagler, Bailly, Inc., various changes to the sampling <br />protocol ware discussed. The following modifications to the <br />approved TR-006 document, QA/QC Protocols for the Collection <br />of Surface and Ground Water Quality Data, October 199 will. <br />be implemented during the bi-weekly sampling event foci thF <br />week of March 1. <br />1) A clean filter paper will be placed in the barrel .filter <br />when a barrel filter rinse blank is being collected. <br />Sections 2.2, 3.2, and 4.2.7 of the QA/QC manual will be <br />modified. <br />2) Temperature, pH, specific conductivity, and dissolved <br />oxygen readings will be taken in the field for each of the <br />process samples. Also, a separate listing of analytical <br />parameters for the process points will be included in tthH <br />manual. Section 4.2.6 0# the QA/QC manual will be modified. <br />3) nil field notes will be taken in permanent ink and <br />entered into a bound notebook with numbered pages. Section:: <br />2.1.2, 2.2.3, 2.2.7, 2.4, 3.2.3, 3.4, 4.2.3, 4.3, and <br />Appendix B will be modified. <br />4) All preserved samples will be checked with pH paper t:. <br />verify proper pH before shipment to the analytical lab. <br />Sections 2.1.5; 3.2.2, and 4.2.2 will be modified. <br />5) 'rhe following sampling procedures were discussed during <br />our ttteeting. These procedures are currently specified irr <br />the approved protocol. As discussed, aMRI will follow tl~e <br />procedures outlined below: <br />- E'inal de-igniaed water from the HMRI lab will be rrsc:ci fas- <br />equipment rinsing. <br />- The field parameters instrument will be calibrataci aftier <br />3-5 samples are collected and after collection of a samp]t <br />that differs significantly from the following sample. <br />- The field instrument automatically indicates when a sin<41e <br />reading has stabilized. The stability for each field <br />parr3mPtPr will bo raachod bnfare a4mplin:~. <br />CO. SOX 3)(a SA\ LlAS, COLOkADO &1132-03iil (7w) 6T_•)362 FAX 17)41 672-31(,3 <br /> <br />