USEPA EMAP Surface Waters Lake Database Northeast Lake Water Chemistry Data, 1991-1994

The primary function of the lake water chemistry samples, collected with a van Dorn sampler, is to determine acid-base status, trophic state, and classification of water chemistry type. Water chemistry in lakes is analyzed for two purposes. First, to understand the chemical habitat within which biota must exist so that we can understand the biological potential of the system and second, to evaluate the chemical quality of the water for the purposes of determine the potential stresses to which the biota are exposed. Water chemistry parameters are reported for one sample taken at the location of the deepest part of the lake by a van Dorn sampler from a depth of 1.5 m. These include: aluminum, alkalinity, acid neutralizing capacity, calcium, carbonate, color, specific conductance, dissolved inorganic carbon, dissolved organic carbon, bicarbonate, potassium, magnesium, ammonium, sodium, nitrate, total nitrogen, pH, total phosphorus, silica, total suspended solids, turbidity, and chlorophyll-a. Sampling was initiated July 1991 and ended September 1994.