Laserfiche WebLink
• flows since its total dissolved solids is much less than any other sample. All other ions in solution are <br />more or less proportional to the level of TDS in the sample. Bicarbonate, on the other hand, has <br />consistently increased by approximately 33%. <br />There is no significant trend in TDS differences from the overburden water to the spoil water, although <br />averaging the samples from 1995, 1996, 2000 and 2001 shows a difference of 200 ppm or a 6.6% <br />increase. Overall, water quality of the spoil water may be only slightly higher in TDS than the <br />undisturbed overburden water. The quality of both waters are relatively poor. However, the spoil <br />water quality is affected to a significant degree by the time of year when irrigation is occurring on the <br />surface. Table 2.05.6(3)-3 shows the TDS levels and flow rates for various samples taken from 1987 <br />to the present for the Spoil Spring and the NPDES 001 discharge. TDS for wells GW-N9 and GW- <br />N15, which are located in undisturbed overburden, are also included in the table. <br />The monthly flows and TDS values from the 001 discharge show a direct correlation between TDS and <br />flow rate. As the flow rate gets lower, the TDS gets higher. <br />u <br />. (Revised 6/OI) 2.05.6 (3) - 26 <br />