clip: Introduction to ACT and TANC activities (not activated yet).
Topical Study Teams, made up of study unit project members, National
Synthesis members, and National Research Program scientists, will define the
direction and design of the studies. These study teams will not only focus on sources, transport processes, and effects,
but will also address implications for water-quality management and the possibility of extrapolating to other unmonitored
areas. Implementation of the plans will start in fiscal year 2003. For more detail see pages 17-21 of
Water Resources Impact (July 2002).
The San Joaquin-Tulare Basins NAWQA will participate in the first two topical studies listed below.
The five water-quality topical studies are:
- -- This study
will help understand how environmental processes and agricultural practices affect the transport and fate of
chemicals in the hydrologic systems of nationally important agricultural settings, and the effects on the quality
of streams and ground water.
- -- This study will determine the primary anthropogenic and natural contaminant sources, aquifer
processes, and well characteristics that control the transport and transformation of contaminants along flow paths
to supply wells in representative water-supply aquifers.
-- This study will describe how biological communities and associated processes respond to varying levels of nutrient
enrichment among agricultural streams in different environmental settings.
- -- This study will
describe the environmental and biological factors that govern the transformation of mercury into methyl mercury,
which can accumulate to toxic levels in aquatic food chains.
- -- This study will determine
how stream ecosystems respond to land-use changes associated with urbanization, and how these responses vary across
different environmental settings.