Based on samples collected bimonthly for major inorganic and trace elements and monthly for biota and bacteria, water from the Blue Creek arm of Lake Eufaula and Blue Creek is suitable for most uses when compared to water-quality standards or criteria. Concentrations of most chemical constituents gradually increased from spring to fall. The concentrations generally were within established drinking-water standards, with the exception of iron and manganese.
Using water-quality determinations and biologic indicators, the water from Blue Creek arm of Lake Eufaula and Blue Creek is: (1) Soft and acidic with little mineral content and conductivity; (2) calm or very slowly moving; and (3) warm and enriched with organic matter.