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<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br />1 <br /> <br />t~ <br /> <br /> <br /> <br />D~sso'ved A7 +m~n+m/O hoghosoha /N+ + / ~n~on+ d moron+a <br />Dissolved aluminum (Figure 5), orthophosphate, nitrite, and unionized ammonia <br />(Figure 6) were added to the monitoring program in 1988. All values obtained <br />for these parameters have been low with most being below detection limits <br />(Appendix 1). while orthophosphate showed some perturbation during the 1990 <br />sampling period, concentrations in 1991 were consistent with pre-1990 trends. <br />Since 1988, unionized ammonia concentrations have increased; these values are <br />low, however, at slightly above detection limits, and show little difference <br />between station readings. <br />12 <br /> <br />