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<br />some areas, was clearly evident beginning at the eas <br />third of your property and continuing upgradient pas <br />J Pit and approaching the edge of Swing Mesa. It <br />evident that significant cutting of the immediate ch <br />embankments occurred as storm runoff scoured out th <br />bottom. Although the drainage channel passes im <br />adjacent to the affected area comprising the J & J P <br />was little or no evidence that runoff from the min <br />any significant quantity of cobble material down <br />drainage and onto your property. A portion of the ac <br />to the pit which is immediately adjacent to and for <br />of one of the side embankments of the drainage sh <br />evidence of cutting, however it was apparent from obs <br />of the drainage channel as a whole that such a high <br />of runoff would probably have caused the same <br />embankment cutting regardless of whether there was a <br />road embankment adjacent to the channel. Portio <br />natural drainage channel both above and below <br />embankment area showed as much side embankment cutti <br />occurring along the base of the road embankment. Ot <br />of the gravel pit which contribute runoff to the <br />showed no signs that storm runoff had washed any si <br />quantities of cobble material into the natural drain <br />operator has installed a berm along the outside port' <br />acres road beginning at the switchback where the ro <br />immediately below the pit. This berm appears to <br />effective in preventing any significant quantities <br />material from leaving the disturbed area. <br />2) The Carbon Junction Mine is located just to the sou <br />watershed which feeds the drainage in question anc <br />would not have had any effect on the channel. It <br />noted that the Carbon Junction Mine has an elaborate <br />control system as required by the Coal Regulations <br />than the Regulations for gravel mines) that is de: <br />completely contain all of the disturbed area runoff <br />year, 24 hour storm event. <br />3) Apparently, the late August storm event was unusual <br />and caused damage in many parts of the county that <br />experienced such damage for a number of years, perh <br />more. From talking to individuals who have lived i <br />fora long time, it is probable that the storm event <br />last August greatly exceeded the calculated runoff <br />year, 24 hour storm event. <br />4) Although it was difficult to determine due to the <br />landform changes that have occurred as a result of c <br />development in areas within and surrounding your pro <br />is probable that the natural course of the drainage <br />area has been altered over the years in order to a <br />building sites situated on both sides of the highway <br />Bern one- <br />t the J & <br />was also <br />onel side <br />channel <br />uediately <br />it, there <br />e carried <br />into the <br />cess road <br />us a part <br />wed some <br />arvations <br />quantity <br />agree of <br />man-made <br />s of the <br />the road <br />g as that <br />per parts <br />drainage <br />(nificant <br />9ge. The <br />on of the <br />ad passes <br />ave been <br />~f cobble <br />h of the <br />as such <br />hould be <br />drainage <br />lifferent <br />igned to <br />from a 10 <br />y severe <br />had not <br />ps 20 or <br />Durango <br />ccurring <br />rom a 10 <br />xtent of <br />~mmercial <br />~erty, it <br />in this <br />:comodate <br />Such an <br />2 <br />