Electrical conductivity (EC), pH and alkalinity (reported as HCO3) were determined on nonfiltered samples. EC was determined with a YSI Model 31 Conductivity Bridge (Yellow Springs Instrument Co., Yellow Springs, OH 45387) and corrected to 25°C. pH was determined with a Radiometer PHM85 pH meter (Radiometer, Copenhagen, Denmark) and alkalinity was determined by titration to an end point of pH 5 (Homann et al., 1992). Remaining sample material was filtered through Whatman GF/A filters, stored at 4°C, and analyzed within a month after arrival at the laboratory. Solutions were analyzed for Ca, Mg, K, and Na, using a IL 951 Atomic Absorption Analyzer. Ammonium was determined with a Technicon Autoanalyzer II(Technicon, Tarrytown, NY 10591). Sulfate, C1, N03 and P04 were determined with a Dionex 2100 Ion Chromatograph (AS4A and AG4A columns) (Dionex, Sunnyvale, CA 94088). Macro Kjeldahl digests were done on all samples having sufficient volume and those digests were analyzed for N and P (reported here as Total Kjeldahl N and P (TKN and TKP)).