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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
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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 />' 3.0 WATER QUALITY <br />Appendix B presents the ground-water quality delta for the Trapper <br />' Mine. Table B-1 tabulates the available ground-water quality data for <br />the Trapper monitoring wells. Total dissolved solids (TDS) was <br />selected as the parameter to discuss trends of major constituents. <br />' 3.1 TDS <br />' TDS is a measurement of the total dissolved minerals in water. <br />It typically correlates well to constituents which make up the <br />' majority of the dissolved solids and, therefore, is a good indicator <br />' of trends for the constituents. Conductivity is typically a good <br />indicator of TDS and in turn a good indicator of some major <br />' constituents. The first series of pages for each well presents the <br />TDS, conductivity, and sum of major constituents (DSSUM), along with <br />' several other parameters. DSSUM was calculated by adding the. <br />concentrations of the major cations to the major anions, except for <br />one-half of the bicarbonate which is not added because this <br />concentration is evaporated during the measurement of TDS. This <br />allows a comparison of TDS and DSSUM, which is a good check on the TDS <br />and major constituent measurements. The second series of parameters <br />' presented in Table B-1 includes values of the charge balance (BALNC) <br />of the major constituents. BALNC is calculated as the difference of <br />' the cations to anions in meq/1 divided by their sum times 100, BALNC <br />is also a good indicator of accuracy of major constituents and values <br />1 3-1 <br />
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