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<br />boundary and had caused very minor damage to the hillside, damage ~.~hich was rapidly <br />repairing itself. <br />Further down the drainage and a distance of 25 to 175 feet beyond the permit <br />boundary (but still on Castle Concrete land) a zone of large bould~ars was noted. <br />Some of these boulders could be faintly detected on the 1977 aerial photo and <br />therefore were of either natural origin or originated as a result of old mining. <br />Fbaiever, the main mass of the boulders were of recent origin. Qie boulder even had <br />a drill hole in it which was of appropriate size to clearly indicate it had come <br />from recent mining. It was estimated that about 100 to 200 tms of rock was located <br />in the bottom of the drainage. <br />Examinatirn of the slope above the bottom of the drainage showed minor to <br />moderate damage. About 6 to 12 full size trees had been torn from the ground and <br />had subsequently died. F~bwever, it was also noted that most of tree vegetation on <br />the hillside, unlike the hillsides to the side of the location where the racks had <br />rolled, was occupied mostly by Gambel Oak and therefore damage wa=; not as severe as <br />it would have been had the rocks rolled through a more forested area. <br />Growing among the rocks were various shrubs which indicated, by examination of <br />the recent internodes, they had gone through only one growing season since the <br />damage occurred to their structures. The vegetation therefore indicated a probable <br />date of occurrence of sometime prior to April or May 1988 but probably not before <br />about September 1987. There is a slight chance the spillage occurred tsetween <br />September 1986 and May 1987, but growth indications on the plants do not indicate <br />this to be very likely. Furthermore, in 1986 and 1987, mining near the west slope <br />was just beginning and therefore the probability of the spillage xcurring then was <br />very low. Furthermore, it was known that the equipment operator which had been <br />caught improperly rmving rock had done it sometime between September 1987 and May <br />1988. <br />Further dawn the drainage the zone of large boulders abruptly ends, except (or <br />one large rock which rolled down the drainage to a location about 50 feet on to Cave <br />of the Winds property. It is estimated this rock weighs between 5 and SO tons. <br />No rocks were detected further down the drainage or in the bottom of Williams <br />Canyon. The canyon uas traversed, after obtaining permissim frcm the Cave of the <br />Winds, from the location of the last large rock all the way to thie road and no <br />further spillage could be detected. One rather strange tree kill. was noted below <br />the cliffs to the west of Phase 1 and at the bottom of a lmg ta:.us slcpe. It is <br />not kna-+n how this tree was broken oft about 5 feet above the grcx.uid, but it is <br />CORRECTIVE ACTION PLA'V StJYDS)2 POCK SPILLS PAGE :3 <br />