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Ari Cornman <br />Nissen Fazms 7.apus iradsonius preblei <br />Disqualification Request <br />Page 2 <br />The project site is entirely in agricultural production consisting of corn and oats. An <br />irrigation ditch complex comprises the only surface water drainage feature on the <br />property. Water flow within the ditches is controlled by headgates. The ditches are a <br />combination of concrete and earthen trapezoidal or "V" shaped ditches. Vegetation along <br />the immediate margins of earthen irrigation ditches is comprised of a dense stand of reed <br />canarygrass (Phalaris arurrdinacea) with scattered individual wild licorice plants <br />(Glycyrrhiza lepidota). Where present, the total width of this vegetation association is <br />six feet, and it is discontinuous along the ditch complex. <br />While the project site is bordered by the South Platte River approximately 100 feet to the <br />north, the project site is isolated from the riparian corridor by a large earthen levee <br />system (ten to fifteen feet high and thirty-five feet wide) that comprises a significant <br />dispersal barrier. <br />Neither the project site nor any adjacent azea falls within those areas designated by <br />USFWS as critical habitat for the mouse as defined in the Federal Register Vol. 67, No. <br />137, July 17, 2002, 50 CFR Part 17 proposed rule. <br />For the above reasons we request a concurrence for disqualification of the Nissen Farms <br />Resource site for further consideration as Preble's habitat and exclude the site from the <br />trapping requirements. If you have any questions, or we can provide additional <br />supporting information regarding this concurrence request please contact us. <br />Sincerely, <br />/'~ <br />Principal <br />c: Jeff Gregg, Hall-Irwin <br />Karen Flanders, Rocky Mountain Consultants <br />Attachments: Nissen Farms General Location Map <br />Figures 1-3 <br />