Used oil is insoluble, persistent and may contain toxic chemicals and heavy metals. If spilled on the ground, poured down storm drains or disposed of with trash, it can pollute surface water or...
Managing waste from animal agriculture is not a new issue, but recent trends to condense livestock into intensive animal feeding operations (AFOs), combined with new chemicals and pharmaceuticals...
Hydrologic stresses throughout the 20th century and presently (2003) have caused the depletion and degradation of our Nation?s vital ground-water resources in many areas. Management strategies have b...
When a site has low levels of contamination, it may be feasible to allow the regulated substances to naturally attenuate as opposed to an active remediation method. In order to approve monitored...
Fate and transport models are used by risk assessors to estimate the movement and chemical alteration of contaminants as they move through environmental media (e.g., air, soil, water, groundwater).
Deteriorating ground-water quality has stimulated new research initiatives; that, in part focus on the subsurface fate and transport behavior of pathogens. Increasing application of aquifer storage...
The application of pesticides to cotton (Gossypium hirsutum) is an important issue that affects the water quality of the southern United States. Cotton receives as much as 7 kilograms per hectare of...
This Washington State site is from "The Citizens Guide to Understanding and Monitoring Lakes and Streams." There is a variety of basic information related to fecal coliforms in water. There are...
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