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~ 01/14/1994 <br />04:23 303"64636 <br />• <br />Andasclrt & Goarnl~Y <br />O e o vmtrnRmental p/nnrtirsq <br />p I ti n tandacapt archuarwt <br />n i n g rlvrrine/wetlands con.taltigq <br />AhIDEP.SUhJ CDMPANI' <br />• <br />PAr,E 02 <br />June 10. 1998 <br />Ms. Barbara Brunk <br />RMC, Inc. <br />825 Dclaware Ave., Suite 500 <br />Longmont, CO 80501 <br />lte: 12M802 -Hall-Trwin Property <br />Deter Barbara <br />Doting our field visit this morning to the Hall-Irwin propcm at Highway 119, east <br />of I-25 in Wcld County, I observed several areas which will requite; a wetland <br />delineation, determination of the Army Corps of Engineer's jurisdiction, and a <br />survey for the thrcnuncd and endangered Spiranrhea diluvialis, Tlrr i.adiec' <br />Tresses Orchid. i understand that wildlife ecologists are currently assessing the <br />Prcblc ~ Mousc habitat pountial. <br />Thc ui~ltid should be survcycd during the accepted blooming period, Inly 20 <br />through August 30. For efficiency, I recommend petfoaning both the wetland <br />delittealiou and the Spirandees survey at this time. The areas to be investigarnd <br />include the settling pond on the eastern portion of the site, and all drainageways, <br />including irrigatiutt lalcrals and the vcgctation which flanks them. These field <br />investigations should be performed prior to any disturbance in these areas. Mining <br />of the Site will likely ttxluirc a permit pwsuant to Section 404 of the Clean Water <br />Act, regulated by the Army Corps of Engineers. <br />In the meantime, the fast phases of mining can commence in what is now cultivattd <br />Croplands. I'hC limits of all disturbance should be clearly defined as the edge of <br />cultivation. !n this way, all Waters of the US, wetlands and possible 5piranthes <br />diluvialis habitat will be preserved until the fic1J invratipations uc complcud, and <br />404 permit authorization obtained. <br />If you have any further questions, please do not hesitate to contact me. <br />~eo....cw.a <br />l <br />r <br />non St~tt_ly, <br />~ <br />p <br />o <br />t~~700 C <br />%!tL~~ <br />(~p~rn~os <br />FN( i~~~ <br />a.K...,t, Peggy 'Kaia' Anderson, Principal <br />PA: a <br />ce: File <br />~ <br />o <br />FN[ rIOE 9Y <br />2 <br />