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REP23798
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REP23798
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Entry Properties
Last modified
8/24/2016 11:56:02 PM
Creation date
11/27/2007 3:49:36 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981013
IBM Index Class Name
Report
Doc Name
AHR REVIEW FOR 1988, 1990, 1991
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
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R <br />• • <br />1. No data has been collected since 1990 for a full suite <br />monitoring of the downstream effects of the Golden Eagle <br />Mine's refuse pile in alluvial wells PAW-3 and PAW-4. From <br />the evidence seen in PAW-2, the alluvial well directly <br />downgradient of the refuse area, the trends show dramatic <br />increases from PAW-1 in the following: Fe (from 13 to 130 mg/1, <br />up 10 times or one magnitude) TSS (30 to 650 mg/1, up 2 <br />magnitudes), TDS (from 90 to 580 mg/1, six times) bicarbonate, <br />(73 to 500 mg/1, seven times greater), C1 (.09 to 2.5, up two <br />magnitudes), Na (12 to 85 mg/1) and sulfate (from 4 to 120 <br />mg/1). In order to trace the extent of the plume of increased <br />TDS etc., it is necessary to correlate the data downstream, <br />particularly at PAW-3 (300 yards downstream) or PAW-4 (400 <br />yards downstream). No data is provided to do this. The <br />operator's explanation is: not enough water to sample. I <br />recommend a more diligent effort to accumulate water quality <br />data in these two alluvial wells, ae the depth to water level <br />was detectable, there must be some water available for testing <br />chemical parameters per the permit commitments. This issue <br />was also addressed in 1991's AHR review as possible <br />exceedences. <br />2. No data was collected for the entire year on groundwater well <br />CCAW-1 that is located at the mouth of Ciruela Canyon and <br />which monitors the surface facility and refuse areas. 1991 <br />data was collected in both the months of March and November <br />and indicated that there seemed to be an increasing trend in <br />TDS, bicarbonate, sodium, chloride, sulfate, calcium, <br />magnesium and potassium levels. Without data from 1992 <br />provided, this trend is impossible to track. I recommend more <br />diligence in obtaining samples, per the permit commitment of <br />quarterly partials and an annual full suite. Please also <br />provide an explanation why no samples were possible. <br />Sugary: <br />1. Per Stipulation No.15, all categories have been met and the <br />Annual Hydrology Report submitted for the water year 1992 have <br />been met. The report was submitted July of 1993. <br />Inspection frequency parameters have not all been met, both in <br />the monthly, quarterly and annual short lint (full suite) <br />categories. In particular, the following surface water <br />monitoring sites were lacking sufficient data: CCS-1, CCS-2, <br />CHC-1, LCS-1, MDGE-1, PRS-1,2,3 and 4. Ground water <br />monitoring was also insufficient in the following wells: <br />PAW-3, PAW-4 and CCAW-1. Please contact the Division and <br />provide a reason why these site monitoring requirements were <br />not met. Please also indicate what is meant by the words, "No <br />flow recorded" which is used in Table 1-14 for CHC-1 and <br />LCS-1. <br />2. The mine inflow parameters have all been met per Stipulation <br />No.13 (A-D) in the New Elk permit. Each discharge point has <br />4 <br />
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