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2015-04-07_HYDROLOGY - M1977342
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2015-04-07_HYDROLOGY - M1977342
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Last modified
8/24/2016 5:59:06 PM
Creation date
4/8/2015 3:22:30 PM
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Template:
DRMS Permit Index
Permit No
M1977342
IBM Index Class Name
HYDROLOGY
Doc Date
4/7/2015
Doc Name
Point of Compliance Low pH Status Update
From
Climax Molydenum
To
DRMS
Email Name
PSH
Media Type
D
Archive
No
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Table 1 Henderson Mine Monitor Well Construction Summary <br />Ground <br />Elevation <br />Stick <br />Borehole <br />Well <br />Screen <br />Surface <br />Well ID <br />Latitude <br />Longitude <br />TOC <br />Up <br />Depth <br />Depth <br />Interval <br />Comments <br />Elevation <br />(ft amsl) <br />(ft) <br />(ft bgs) <br />(ft bgs) <br />(ft bgs) <br />(ft amsl) <br />MNGW -1 <br />39.770277 <br />- 105.835554 <br />10130.76 <br />10133.00 <br />2.24 <br />UK <br />13 <br />UK <br />Existing <br />POC Well <br />MNGW -3 <br />39.770329 <br />- 105.835985 <br />10139.28 <br />10142.43 <br />3.15 <br />27 <br />24 <br />14 -24 <br />2014 Well <br />MNGW -4 <br />39.770513 <br />- 105.835851 <br />10129.03 <br />10132.19 <br />3.16 <br />23 <br />20 <br />10 -20 <br />2014 Well <br />Notes: <br />Coordinates in ]at/long State Plane 83 Projection, CO North zone and WGS84 datum. <br />MNGW -1 included due to re- survey of top of casing elevation. Screen interval and drilled depth are unknown (UK). <br />Both new wells and MNGW -1 were sampled in the fourth quarter 2014. AJAX /Clear Creek <br />recommends sampling the wells on a triannual basis beginning in spring 2015 and continuing until <br />sufficient data are collected to assess baseline conditions and trends. Furthermore, water levels and <br />field parameters should be collected from the new wells and MNGW -1 on a monthly basis to <br />evaluate seasonal influences on groundwater flow direction. The results of this monitoring will <br />allow AJAX and Clear Creek to provide a more comprehensive evaluation of groundwater flow and <br />groundwater quality. <br />Please let us know if you have any additional questions. <br />Sincerely, <br />AJAX Mountain Enterprises LLC <br />A.-it W / 7 <br />Leah Wolf Martin, PG, PE <br />Project Manager <br />Clear Creek Associates, PLC <br />Mike Alter, RG <br />Principal Hydrogeologist <br />
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