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r <br /> O'Connor <br /> Page 3 <br /> March 25, 1987 <br /> The value for the Persayo series was originally set at 175 <br /> lbs/acre based on the information received over the phone <br /> from Ms. Cencich. However this value is for the phase <br /> occurring in the 8" precipitation zone. The more correct <br /> phase is for the 12" precipitation zone. The potential <br /> production value under normal years is 250 lbs/acre under <br /> this phase, a reasonable correlation to the 218 lbs/acre <br /> collected during 1986 sampling of the upland sagebrush <br /> reference area (Persayo soils) . The correct SCS Form 5 <br /> with the column showing the 12" precipitation phase <br /> highlighted is attached. This information has been <br /> forwarded, per your request, to Rick Holbrook at OSMRE for <br /> their mandatory review of alternate success <br /> standards. <br /> Inserting the page changes into the Nucla Permit <br /> Application Package should be self-explanatory. However, <br /> if you have any questions , please let us know. <br /> Again, thank you for your consideration of this matter. <br /> We look forward to completing this phase of the Nucla <br /> mining operation. <br /> Sincerely, <br /> James S. Lunan <br /> sj <br /> atts. <br />