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Creek is evident. <br />Oak Creek: TDS, TSS, Ca, bicarbonate, Na, sulfate are all <br />low. Of heavy metals, iron is up, 2.0 mg/1. Copper, lead and <br />zinc are within acceptable ranges of data collected since <br />1983. Other years of high iron content were associated with <br />large precipitation events when the creeks were in high flood <br />state. <br />Magpie Creek: Data has only been collected on this creek <br />since 1991, with only one other data point in 1992 to compare. <br />TDS was about the same in both years 60-70 mg/1. TSS was <br />recorded at 1240 mg/1, down from 1992's 3540 mg/1. Iron was <br />high in both years 49.8 mg/1 in 1992 and 42 mg/1 in 1994. All <br />other heavy metals remained stable and within material damage <br />criteria limits. Na, bicarbonate and sulfate remained the <br />same in both years. Insufficient data base exists at this <br />time to determine water quality trends in this creek. <br />Second Alkali Creek: A sample from this creek was taken in <br />July 1993 during this year's sampling period. This is the <br />only sample and data collected thus far on this creek. <br />Stipulation 15 requires pH, TDS, TSS, Fe and Mn parameters to <br />be analyzed. With the lack of compilation of a body of data <br />it is hard to draw any conclusions for trends in the water <br />quality in this creek. <br />The Division would like to remind EFCI that since no <br />additional sampling was done in the summer of 1994, that in <br />order to qualify Stipulation 15 requirements, that another <br />sample must be taken prior to June 30, 1995. <br />Iv. Conclusion <br />This concludes the Division's review of Energy Fuels' Annual <br />Hydrology Report submitted for the period of July 1, 1993 to <br />June 30, 1994. Please provide comments where requested above. <br />The Division notes that all stipulations (mainly Nos. 6 and <br />15) and permit commitments have been met with the submittal of <br />this AHR. The report was received on September 8, 1994 after <br />approval for an extension was granted. <br />The following documents were utilized in this review: <br />Permit application, Exhibit 25 <br />Hydrologic Monitoring Plan <br />Findings document for permit renewal 7/94 <br />AHR from 1992 and 1993 <br />Stipulation history <br />