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Memorandum in Response to Notice of Determination of Designation Mining Operation (DMO); DRMS File Numbers <br />M-1977-416, M-1978-039 HR, M-1977-285, M-1980-055 HR, M-1981-021 and M-1977-032. <br />previously, the rock hosting the ore body is the Salt Wash Member of the Morrison <br />Formation and it is not anticipated that the waste rock will be acid generating. <br />Because the waste rock is all generated from the same geologic member, Denison <br />proposes to take three representative. samples from each of the surfaces of the Sunday, <br />West Sunday and Topaz waste rock areas (nine samples total) and perform an Acid <br />Base Accounting (ABA) Test (from a certified lab) to demonstrate that the waste rock <br />from this member is not acid producing. Collection will occur once this procedure <br />has been agreed upon by the Division. Results of these tests will be provided to the <br />Division within one month of their collection. ,._ <br />In addition to providing information necessary to <br />hoped that the foregoing sampling will provide el <br />and the Division to determine whether or not acic <br />of mining operations, which is one of the criteria; <br />7.2.6(1). _ ~- <br />With respect to toxic forming materials, Denis <br />samples from each of the waste rock areas at tl <br />mines (nine samples total) and perform a Mete <br />(MWMP) on the waste rock (performed by a ce <br />performed and analytes will be taken for-the co <br />-~~ ` <br />~~'-" <br />.~ ~} , <br />.u'_ <br />~~`~~y=; <br />n_, <br />e EPPs for the mines, it is <br />rnation to enable Denison <br />iiage;;will occur as a result <br />be addressed under Rule <br />will also take three representative <br />Sunday, West Sunday and Topaz <br />~,,z_,~ <br />cater Mobility Procedure <br />~fied`lab,). The MWMP will be <br />tituentsrshown in the table below: <br />Proposed;~Wate"r QuaLty A'nalytes. for U.rariium <br />'~ ~'~,Mirie :Geo=Ghemical'Anal sis ,~ . ~. <br />., <br />Field H~~;:.., <br />;~' Electrical Conductivi <br />Alurnmum = _ <br />`Arsenic: ~ ;x <br />' ' -~}Barium ~z:;;,: a: <br />Cadmium ~~~~~~z. <br />~, Y _ <br />Iron ~~~~_ ~. _. <br />- Lead °`~`' <br />;tip-,. <<..~_ <br />r.~z~;:y:Mol bdenum <br />~~`.ckel <br />Nitrate + Nitrite <br />Selenium <br />Sulfate <br />Uranium <br />Vanadium <br />Zinc <br />Collection will occur once this procedure has been agreed upon by the Division. <br />Results of these tests will be provided to the Division within one month of their <br />collection. <br />4 <br />