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I ~ year the values averaged 234 mg/L. Concentrations of magnesium do appeaz related to flow condition with the higher concentrations occurring during low flow states. Spring 1 magnesium concentrations were the lowest observed of the three springs. Manganese As with magnesium concentrations, manganese concentrations at the springs have shown different trends over the reporting period. Concentrations at spring 3 have remained consistent and lower than spring 4 during the reporting period, while concentrations at spring 4 have significantly decreased by an order of magnitude during the same time (from 2.3 mg/L (WY1995) to below detection levels (WY2002 total concentration). This water year, manganese concentrations were at or close to the lower detection limits for all springs. Sodium Sodium concentrations at both springs have remained fairly variable over the last nine years, though overall concentrations have risen slightly in both spring 3 and 4. Spring 3 concentrations have remained in the 89-120 mg/L range until this water year where first calendar quarter sampling showed a slightly elevated concemration of 124 mg/L. while spring 4 concentrations have fluctuated more, ranging from 96-140 mg/L during the period from water yeaz 1995 to water yeaz 2002. The last two water years, concentrations have been in the 132-171 mg/L range, though the March 2003 level was lower and barely above the historic range. The sodium adsorption ratios for both springs reflect the same overall trend as sodium concentrations. Spring 1 concentrations aze significantly lower for sodium, with a lower calculated SAR value. Sulfate As with several other constituents, sulfate concentrations at springs 3 and 4 remained consistent from water year 1995 through water year 2001. The last two water yeazs have shown some elevation in concentrations in sulfate for both springs. The 1995-2001 ranges for spring 3 were between 1440 and 2000 mg/L, while the last two water years have revealed a range of between 1850 and 2300 mg/L. Spring 4 values have show a comparable trend with the 1995-2001 range being 1100.1480 mg/L and the recent values ranging from 1700 to 2200 mg/L. Trace Elements Many trace elements were consistently found to be near or below the detectable limits for all springs for the 2003 wafer yeaz. These same trace elements have historically been found to be at or below detectable limits. They are aluminum, ammonia, arsenic, cadmium, copper, iron (both total and dissolved), lead, mercury, molybdenum, nitrite, nitrate, nitrate/nitrite, phosphate, selenium, and zinc. Carlwn Junctkn Mlne Pegs 7 Annual Hydrdogk ReporGfor Wafer Year 2008