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HYDRO26604
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HYDRO26604
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Last modified
8/24/2016 8:46:04 PM
Creation date
11/20/2007 6:53:02 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981033
IBM Index Class Name
Hydrology
Doc Date
3/30/1998
Doc Name
WEST ELK GEOCHEMICAL ASSESSMENT OBSERVATIONS AND INTERPRETATIONS
From
DMG
To
DAVE BERRY
Permit Index Doc Type
OTHER SURFACE WATER
Media Type
D
Archive
No
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13. a significant increase in TDS; <br />14. a slight drop in temperature. <br />Other observations, which seem less essential to explanation of the waters, aze: <br />15. The N,:O, ratios of the dissolved gases in all of the waters range from about 4:1 to 5:1 while <br />the O,:Ar ranges from about 12:1 to 18:1. These deviate somewhat but still compaze <br />favorably with the same ratios in atmospheric gases, which are about 3.7:1 and 20:1, <br />respectively. Combined, these may suggest a relationship to atmospheric gases, or a <br />combination with atmospheric gases, where atmospheric gases are a prominent component. <br />16. The S'aS values of the waters, being significantly heavy relative to marine sulfate, is <br />evidence that the sulfur has itself been derived from an area where partial sulfate reduction <br />has occurred in a relatively closed reservoir, thus enriching the residual sulfate in the <br />reservoir in the heavy isotope. Oxidation of methane in the presence of marine sulfate could <br />explain the source of the sulfur in these waters. <br />17. The ~"C values (~ =difference) between CH,-S"C and CO,-S"C in the dissolved gases <br />give equilibrium temperatures as follows: 200° C for the Rollins sandstone (assuming the <br />reported CO, value is -10.81 rather than +10.81); between 120 and 210° C for the faults; <br />and 410° C for the Colonel Chinn Well sample. Such high temperatures relative to the in- <br />mine measured temperatures suggest rapid expulsion of deep, high-temperature fluids out <br />the faults, followed by rapid cooling in the mine and non-equilibrium with the local <br />temperatures. <br />Contrary to the Mayo and Associates reports, the so-called loss of sodium between the faults <br />and the seep does not appear to be the significant issue they indicated. The Beep's sodium <br />concentration is within the range of sodium in the fault waters, not much lower, as they <br />concluded. <br />DATA QUALITY <br />Although it is not the intent of this report to call on additional sampling -- in fact, none <br />seems to be necessary except perhaps to negate the conclusions made herein -- it should be noted <br />that the data and reports that are available contain very few of the ordinary types of <br />documentation that could be expected for a report of this nature. This is not to suggest that the <br />data may be flawed, but that ordinary documentation is not available. For instance, there is no <br />information on sampling and analysis. Reporting protocols, such as whether certain <br />measurements were field or lab measurements, are not included. The isotopic standard for <br />carbon is not included. <br />Importantly, some critical analyses are incomplete, including isotopic analyses of the seep <br />and the Lone Pine seal. Fundamental information, including a record showing how much water <br />was pumped from each source to the NW Panels sealed sump, and at what time it was pumped, is <br />not available. <br />
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