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. 5. Inspection Reports -The Streeter Fill Inspection Reports provided in Exhibit 5 document there has been no significant changes otherwise noted in the survey monuments or the piezometer well and no formation of any springs or seeps. n LJ The Division's Mazch 30, 1999 Findings of Compliance for the 1998 Annual Hydrology Report noted seep inflows into the southwest corner of Streeter Pond. The prevailing water surface of Goodspring creek, located between the Streeter pond and Gulch A pond, has continued to be elevated by local beaver activity. What once was a more defined channel, Goodspring creek in this vicinity has become a cattail mazsh. Due to this localized rise in the water table, seep inflows in the southwest comer of the pond have become more of a permanent feature. Similaz springs are flowing from the toe of the hillside located immediately south of the Streeter pond and flowing directly to Goodspring creek. The Division also noted that the spring inflow into the pond had a field measurement of 1630 mg/1. which suggests that the source of the water is connected to the nearby Goodspring creek alluvial system rather than a mine spoil environment. Historically, the Streeter pond has received very limited inflow after the conclusion of spring nmoff conditions. With the addition of the constant inflow from this spring, during 2000 the pond had a constant dischazge of approximately 0.10 mgd (0.16 cfs). This flow is the same as occurred during 1999. The TDS level in the Streeter pond dischazge during 1999 was in the 1,920 - 2,390 mg/1 range (2,167 mg/1 average). During 2000 the TDS level was in the 890 - 2,200 mg/1 range (1,655 mg/I average). The data suggests that in 2000 the average level of TDS from the Streeter pond discharge has dropped by neazly 24% when compazed to the 19991eve1. We believe the data further suggests that current level of TDS more closely represents the general TDS levels found in the Goodspring creek seep inflow scenario described above. We will keep Division informed if we see any additional changes. In summary, the monitoring information suggests that the Streeter Fill contiriues to perform overall as designed. B. Section 16 Fill Requirements During construction of the Section 16 Fill, the Division received copies of quarterly inspection reports and Certifications for the Fill. The Division was notified in the fourth quarter, 1994 report that "construction" of the Fill was completed and Colowyo was entering the "monitoring" phase of the Fill. As such, the certified inspections, piezometer well monitoring and monitoring of the four survey monuments were to be conducted quarterly and submitted only in Annual Reclamation Reports. In 1998 Technical Revision 44 was approved by the Division which reduced the schedule of monument surveys and certified inspections to once a yeaz, conducted during the second calendaz quarter. All the reports have been available and were inspected by the Division during the quarterly complete inspections. 5