National Water-Quality Assessment (NAWQA) Program - South Platte River Basin
Trace-Element Transport in Clear Creek and the South Platte
PAST SURFACE-WATER ACTIVITIES
Map and Data for This Study
Identify the trace elements present in Clear Creek and the South Platte
River through Denver.
Determine the mechanism for transport of trace elements in the water
column: Dissolved - less than 0.01 micrometer, Colloidal - less than
0.45 micrometer and greater than 0.01 micrometer, Particulate - greater
than 0.45 micrometer.
Sampled 11 sites along Clear Creek and the South Platte River,
one to three times, during high and low flow conditions. Filtered
samples through different pore sizes to determine the fraction of
each trace element associated with various particle sizes.
- Targeted Physical and Chemical Data:
Flow, pH, specific conductance, dissolved oxygen, water temperature,
arsenic, barium, beryllium, cadmium, chromium, cobalt, copper, iron,
lead, manganese, molybdenum, nickel, silver, zinc, antimony, aluminum,