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Site 29, located on Middle creek below the confluence with Foidel Creek, continues to be monitored. 2004 data <br />is provided in Table 73. Figures 110 through 112 provide graphical representations of water levels and selected <br />water quality parametets recorded at site 29. The historical summary of flow rate data for selected surface sites is <br />presented as Table 59. This table also provides flow summary information for discharge sites 62, 109, and 115. <br />2004 Water quality parameters for these sites are typically within previously established ranges. <br />3.4 Spoil Spring Monitoring <br />Generally, groundwater migrates along bedding planes, faults, joints, or fracture zones. Given adequate head <br />pressure, if these zones of water migration intercept the surface, a spring or seep results. The TCC spoil spring <br />monitoring program was initiated in 1986 and is conducted annually. In accordance with [he approved plan, the <br />annual mine wide survey is conducted during May, with springs measured for flow and field parameters. If a <br />spring is discharging at or above 35 gallons per minute, it is monitored for the next year in accordance with the <br />monitoring plan. Two spoil spring sites, 7 and the 303 series (303-I through 303-3), require monitoring under <br />Exhibit 14-]0. In addition to the spoil spring monitoring requirements, Spring 7 is monitored quarterly for field <br />parameters, and sampled on asemi-annual basis for water quality (if flowing). In 2004 site 7 did not flow. The <br />303 Spring series is monitored/sampled semi-annually far field parameters and water quality. <br />Tables 61 through 63 provide summaries of the 2004 Water Year data collected at each 303 series (303-1 through <br />• 303-3) spoils spring. Table 61a provides a period of record statistical summary of collected data at site 303-1. <br />Figure 113 provides a graphical representation of period of record field conductivity for spoil spring 303-1. 2004 <br />water quality parameters for series 303-1 are typically within previously established ranges. <br />3.5 Natural Spring Monitoring <br />One natural spring, 20-14, was eliminated from any further monitoring requirements per TR03-42. Monitoring at <br />the site was initiated in 1987 and flows have historically been minor, and have been non-existent for the past few <br />years. As such, no 2003 data table has been provided for this site. POR data maybe found in previous AHRs. <br />Two natural springs, SWI and SW2, located over previously mined areas in the Southwest Mining District <br />required semiannual monitoring during 2004. Prior to mining, SW2 typically flowed throughout the year, while <br />SW 1 flows were sporadic. In recent years flows at SW 1 have been minorAimited, and in [he case of SW2, non- <br />existent. No flow was observed at either site SW 1 or S W2 in 2004 (Table 64). <br />In May 2004, a spring and seep survey was also conducted in the northern mining district to identify potential <br />discharges to Fish Creek. The locations of these discharges and other historical discharges can be found on Map <br />37A, 2003 Spring Survey. Discharge locations were measured for temperature, pH, conductivity, and estimated <br />flow, when adequate pooled water was available. The field data collected during the survey is contained in <br />• PR03-06 Table 60.1, Northern Mining District Spring and Seep Survey. Flows were measured using a portable <br />12 <br />