Dear Maribeth:
Where I work, we do have specialists on ground water modelling,
especially on chemistry, you should contact themat
ina@...
,there you could contact Lic.Carlos Torres
Ing.Nicolás Mercado
Ing.Mario Poblete
Dr. Christian Wetten
Ing.Ernesto García
Regards,
Estela Polegritti
On 15 Nov 2003 at 13:26, Maribeth Milner wrote:

> The UNL weeds group, in collaboration with Conservation Survey, put
> together a simple groundwater vulnerability to pesticides map for NE (see
> county samples at bottom of
> <http://csd.unl.edu/csd/pestguides/pest.htm>). The inputs were STATSGO
> texture and depth to groundwater.
>
> In our efforts to regionalize the DSS, Weedsoft
> (<http://weedsoft.unl.edu>), other states have requested similar
> maps. However, I have not found a consistent source of depth to
> groundwater data for the states in question (plains and midwest). Where I
> have found a depth to groundwater surface, it has been derived in one of
> two ways... interpolating well water data (i.e. subsurface geology is not
> taken into account), or a model generated by expert knowledge (i.e. people
> knowledgeable in subsurface geology AND well water depths have put together
> a model). I favor the latter approach - especially at the state
> scale. Bottom line... Does anyone have a list of depth to groundwater data
> surfaces and their metadata?
>
> Secondly, we want to produce a similar model for surface water
> contamination. We'd like to keep it simple, but we might incorporate gross
> chemistry effects. NE's SSURGO database should be complete soon, so we're
> interested in working at both the state and county scales. I'm looking for
> suggestions on which surface water models might work for this GIS
> project. EPA's BASIN model comes with input data and I've been told that
> it might work for our needs. Thoughts?
>
> Maribeth
>
> Maribeth Milner
> 310 Keim Hall
> Lincoln, NE 68583-0915 ph: 402-472-0503 fax: 402-472-7904
>
>
>
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