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• 4.8.7 Sorings <br />Permit map M52 presents the location of springs located at Trapper Mine. A detailed survey of spring <br />locations within and adjacent to Trapper Mine was initiated in 1997. The goal of the ongoing survey is to <br />inventory locations, estatrlish histories, and obtain data from springs within the area. Appendix Q, Section <br />XXXI outlines sampling F~rocedures and schedule to be followed. <br />There are two types of springs at Trapper. Naturally-occurring springs are those in existence before <br />mining or occurring away from areas of mining activity. Spoil springs are those that occur within or <br />adjacent to the mined arE:a and are probably a result of mining activities. The water emanating from a <br />spoil spring has passed through the mine backfill in a reclaimed pit. Spring data is presented in Annual <br />Hydrology Reports to the Division each year. <br />Map M52 shows the location of the spoil springs and natural springs. The major natural springs identified <br />at Trapper Mine are the tNest Buzzard Spring, Coyote Spring, East Pyeatt Spring, Cottonwood and Wapiti <br />Spring, Fox Den Spring, Spring 99-2, and Spring 993. The Cottonwood and Wapiti Springs are natural <br />springs that are derived from the shallow groundwater in this area. The Cottonwood/Wapiti Spring site is <br />undisturbed by mining activities. The Cottonwood and Wapiti Springs are in close proximity to each other <br />and are likely fed by the :name source. The Cottonwood Spring is "developed" with a spring can and piped <br />outlet installed. The Wapiti Spring measurements were typically taken from waters emanating from the <br />same general site but bypassing the spring can. During 1998, higher water levels at the site completely <br />• inundated the Cottonwood Spring developed site thus forcing the Cottonwood and Wapiti sites to be <br />lumped together for monitoring purposes. Coyote Spring, East Pyeatt Spring, Fox Den Spring, Spring 99-2 <br />and Spring 993 have produced the majority of the information on naturally occurring springs at the <br />Trapper site. <br />Prior to 7999, Flume Gulch springs information was collected at surtace water site S-1 and was <br />representative of spring water quality as measured at this location from this drainage during base flow <br />conditions. In 1999, discrete spring sources, identified as springs 99-2 and 993, were identified in this <br />drainage and monitored in addition to the Flume Gulch springs composite sampling conducted at surface <br />water monitoring site S-1. The base flow measurements at surface site S-1 show that the maximum TDS <br />observed in the Flume Gulch groundwater as monitored at this location through 1999 was approximately <br />2200 mg/I. Springs 99-2 and 993 were disturbed by mining activities in the fall of 2000. <br />Significant additional information from a naturally occurring spring has been produced for the East Pyeatt <br />Spring from the NPDES site 011 surface monitoring site during base flow conditions. The maximum TDS <br />measured in the East Pyeatt Spring since mining has occurred in this area has been approximately 2750 <br />mg/I. Table B-2 of the Trapper Annual Report shows that the Coyote Spring maximum TDS has been <br />approximately 2000 mg/I. Historical monitoring of the S3 surface water site (Pyeatt Gulch approximately <br />one-quarter mile downstream (north) of Trapper's permit boundary) during base flow conditions shows <br />that the monitored TDS rat this location has been slightly less than 2600 mg/I. <br />The main springs from the spoil aquifers currently observed at Trapper Mine are the Johnson Gulch and <br />the No Name Springs. Other spoil springs include the A Slide Spring and A Slide Drain. Limited data has <br />;,... . <br />...,«v,cra. R- s <br />4-248a <br />