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The 1992-1993 values for alluvial wells J1 and COY were near <br />neutral. The field pH values for well 81-03a have been near 8.5, <br />while the pH values for the GLOX-1 well are between 7.0 and 8.0. <br />3.4 SAR <br />The sodium-adsorption ratio (SAR) is tabulated on the second <br />series of pages in Table B-1. The SAR values measured for water <br />from well GA1 and GA2 are low with an average value of a few <br />tenths. SAR values for water from well GB2 are typically slightly <br />less than one. The SAR from well GB5 uas typically less than 10 <br />prior to 1985. The last seven years have seen an increase in the <br />SAR value to its 1992 value of 26 and 24 in 1993. <br />The SAR of water from wells GC1, GC2, and GC3 have been <br />typically near 2. No definite trends are shown by the data. <br />The Twenty Mile Sandstone water (well GD1) has had variable <br />SAR values from 0.5 to 4.4. A trend does not exist, but some of <br />the variation could have been affected by the length of pumping <br />prior to sampling. The SAR from well GD2 has generally been close <br />to 0.5. Backfill well GD3 seems to contain water with a similar <br />SAR value. <br />The early SAR values from well GE1 were close to 20, while the <br />more recent values have been close to 12. This change in SAR <br />values could be caused by an increased rate of movement of ground <br />water in this area due to the early drawdowns and recent recovering <br />water levels. These SAR values with the TDS of this water should <br />not make irrigation prohibitive for most soils. SAR values from <br />3-11 <br />