Laserfiche WebLink
<br />' AluminumNnionized Ammonia/Nitrite/Orthophosphate <br />All values obtained for Aluminum (Figure 14), unionized ammonia (Figure IS), and orthophosphate (Figure 17) <br />have been low with most being below detection limits (Appendix A). The nitrite concentration at TR-D was elevated to 0.32 <br />ppm in the April 1999 sample. Subsequent 1999 samples were below the 0.01 ppm detection limit. Therefore, either sample <br />' contamination or laboratory error is suspected. The apparent elevated aluminum level shown in May 1995, was due to the <br />laboratory lower detection limit being set at 0.2 ppm instead of 0.05 ppm. <br />' Orthophosphate showed some perturbation during the 1990 sampling period. However, concentrations since then <br />have been consistently low. <br />' Chloride/Potassium/Iron <br />Chloride and potassium (Figure 18) were added to the monitoring program in 1993 while iron (Figure 19) was added <br />in 1994. The concentrations of all of these parameters in Trout Creek water are generally low. <br /> <br />1 <br /> <br /> <br /> <br />1 <br />1 <br /> <br /> <br />1 <br /> <br />' 19 <br />