Barber, L., Murphy, S., Verplanck, P., Sandstrom, M., Taylor, H., Furlong, E. 2006. Chemical Loading into Surface Water along a Hydrological, Biogeochemical, and Land Use Gradient: A Holistic Watershed Approach. Environmental Science & Technology. ACS Publications, Washington, DC.

baseflow, chemistry, pollutant, surface water, wastewater

Water samples were collected along a 70 km transect in the Boulder Creek watershed in the Colorado Front Range and analyzed for major elements, trace elements, bulk organics, organic waste contaminants and pesticides. Effluent from a waste water treatment plant accounted for as much as 75% of the flow in Boulder Creek and was the largest chemical input.