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HYDRO31384
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HYDRO31384
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Last modified
8/24/2016 8:55:06 PM
Creation date
11/21/2007 1:40:50 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1991078
IBM Index Class Name
Hydrology
Doc Date
2/26/1997
Doc Name
HAMILTON MINE GROUDWATER REVIEW
From
JIM BURNELL
To
HARRY RANNEY
Permit Index Doc Type
CORRESPONDENCE
Media Type
D
Archive
No
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<br />interpretation of the well placement here is that 6 is on the south <br />side of Naturita Creek (receiving flow from the permit area) and <br />AW-7 is on the North, on the opposite side of the creek from <br />influences of the mine, receiving water from areas to the North. <br />I have not found data on the depth of any of these wells, or their <br />relationship to the total depth of the alluvium. <br />AW-3 was dry every year until finally monitoring was discontinued <br />last year. As noted above, I don't know if the well was sunk to <br />the base of the alluvium. <br />AW-4 and 5, which should monitor contribution from the entire <br />western half of the permit area, have also been dry historically. <br />AW-6 and 7 in the alluvium of Naturita Creek, have shown <br />measurable water more than half the time. Here, the water quality <br />on the south side of the creek - that under the influence of run- <br />off and drainage from the mined area - is of better quality than <br />that on the north side, away from the influence of the mine as <br />opposed to drainage contributions from the North. So, it appears <br />that no water quality impacts are being received from the mine <br />area. <br />In summary, no impacts have been noted. The projections in the <br />Probable Hydrologic Consequences section - while predicting minor <br />impacts - have not even been realized, as virtually no impacts can <br />be noted. <br />
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