Laserfiche WebLink
• Monitoring of well 81-03a began in 1987. Water collected <br />from the Third White Sandstone well yielded the conductivities <br />plotted. on Figure B-37. Conductivities. in well 81-03a had been <br />steadily increasing since 1987 but was fairly stable in 1990. Well <br />GLUX-1 was installed in September 1988 in the First White <br />Sandstone to monitor water upgradient of the Lux domestic well. <br />Values of conductivity collected to date are presented on Figure <br />B-38 and have been fairly stable. <br /> 3.2 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 the TDS and in turn a good indicator of some major <br /> constituents. The first series of pages, in Table B-1 of Appendix <br /> B, for each well presents the TDS, conductivity and sum of major <br /> constituents (DSSUM) along with several other parameters. DSSUM <br /> was calculated by adding the concentrations of major cations and <br /> the major anions, except for one-half of the bicarbonate which is <br /> not added because this concentration is evaporated during the <br /> measurement of TDS. This allows a comparison of TDS and DSSUM, <br /> .which is. a good check on the TDS. and major constituent <br /> measurements.. The second series of parameters presented in Table <br /> B-1 includes values of the charge balance (BALNC) of the major <br />. constituents. BALNC is calculated as the difference of cations to <br />3-8 <br />