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REP09521
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REP09521
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Last modified
8/24/2016 11:39:07 PM
Creation date
11/27/2007 12:09:17 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Report
Doc Date
2/2/1987
Doc Name
1986 AHR Section 1.0 through Figure B-2
Annual Report Year
1986
Permit Index Doc Type
Hydrology Report
Media Type
D
Archive
No
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1 <br /> <br />' Twenty Mile Sandstone well GD1 had a significant increase in pH <br />' in 1984. Field pH values are presently back t:o levels that are <br />expected and that were present for the first several years from this <br />well. The recent pH values are thought to be more representative of <br />the aquifer water because well GD1 has been pumped consistantly in the <br />last two years. Field pH from well GD2 does not c9emonstrate a trend <br />while values from GE1 gradually declined for several years and seem to <br />have stabilized slightly above neutral. The pH of water from well GE2 <br />' has varied from slightly less than 7 to approximately 9. A similar pH <br />has been observed for well GE3. <br />1 <br />Twenty Mile Sandstone well GF1 generally contains water with a pH <br />' near neutral while the U aquifer well (GF2) and KLM aquifer well (GF3) <br />' at this site contain water with a pH of approximately 8.5. A slightly <br />higher pH (near 9) has been observed for the HI aquifer at well GF4. <br />' Data from backfill well GF5 indicates that the backfill water will <br />initially be slightly alkaline with a pH of B while the June and <br />' September 1986 values were slightly lower. Well GF6 contains water <br />with a pH slightly greater than neutral. <br />The alluvial, Lewis Shale, Second white and Third White Sandstone <br />aquifers in Pyeatt Gulch all contain water with a pH that generally is <br />' slightly above 7. The pH of water from U aquifer well GZ2 has <br />generally been between 6.5 and 7. Well G23 has shown a wide range of <br />' pH between 6.8 and 8.8. <br /> <br />' 3-8 <br />
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