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anticipated amount of settling and consolidation of the Fill. It is anticipated that two more • monuments located at the 7150 foot elevation will be established on the face of the fill during early 1998. 2. Piezometer Well -The piezometer monitoring well was established in June 1996. The well was drilled through the spoil and underdrain and penetrated the underlying strata. A water level had initially been detected at the 79.1 foot depth (measured from top of casing) which corresponds to the level at which the drill penetrated consolidated material underlying the rock underdrain. We interpreted this water level to be located at the interface of the bottom of the rock drain and [he underlying strata. The well has been monitored for depth quarterly since establishment. The depth to water has varied very little, from 77.0 feet to 79.0 feet. The data suggests no development of a perch water level with in the fill. 3. Springs and Seeps - No springs or seeps have been noted on the face of the Fill or associated with construction ofthe Fill. The following four sources ofwater have been observed entering the West Pit Pond at the toe of the fill in the vicinity of the rock underdrain and the West Pit Pond. A) The surface rock drain has flowed intermittently in response to surface runoff events. Flow • volumes have been variable. B) The rock underdrain Flowed for a time after spring snowmelt (1 - 2 gallons per minute). We believe the source of this water is from the perched water zones drained by the constructed lateral drains which route water to the mainstem of the underdrain. Refer to the January 9, 1995, fourth quarter 1994 Fill report for details regarding the lateral drains. Because the lateral drains are draining pre-existing hillside seeps we do no[ believe the source of the underdrain water is mining related or spoil spring water. This lateral drain is located down gradient from the piezometer well and, as such, has had no effect on the well. C) Similarly, a lateral drain routes water from a shallow perched zone located west of the main underdrain outlet located at the toe of the original north facing hillside. The Flow from this drain ranges from 3 to 20 gallons per minute. D) A fourth source of water is a buried rock drain that routes water from upper perched zones located midway up the same hillside noted in the previous paragraph. This drain routes water to the Fill surface drain and produces water in the .5 to 3 gallons per minute range. In summary, construction of the West Pit Fill is proceeding according to plan, the various drainage structures • are working as planned, [he survey monuments indicate no apparent instabilities and [he piezometer well indicates no development of an internal perched water zone. 7