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Ralston Quarry Slop Stability <br /> Zone a— The Central Slope M Zone 3 (delineated on a May 31, 2018, Goo¥ Earth <br /> image reproduced below) tailings extended the farthest down slope but exhibited no <br /> slop failures prior to construction of the retention ponds which appear to have been <br /> constructed in20O/ <br /> \w� <br /> ��\ <br /> /�:� : <br /> \ , <br /> zeta <br /> Slop stability analyses of Zone were performed by analyzing the section indicated <br /> approximately by the black line on the aerial image on the following page. The retention <br /> pond locations are outlined in light blue The area of the slop failure that developed in <br /> early June 2017 ± is outlined in ?± <br /> Job Nc4$m46 GROUND Engineering Consult «$ Inc. Page 15 <br />