Hi All I have been following the chain of eMails regarding GW hydrology education for hydrologists who are not familiar with GW hydrology. I belong to this ...
Kes.Kesari@...
Aug 2, 2006 10:24 am
2218
Dear All Aquifer Vulnerability Mapping (with the help of DRASTIC or other criteria) is more done for writing a Paper than for putting to any practical use by...
Dr. S.D. Limaye
limaye@...
Aug 2, 2006 10:59 am
2219
One has to look no farther than the City of Dayton, Ohio for a vulnerability mapping success story. Their program is one of the strongest in the US. They...
Dave Russell
dlr@...
Aug 3, 2006 3:24 am
2220
Dear colleagues, I am Nanang Fitriana. from Indonesia. I did my post graduation in Water Resources Engineering and have nearly two years experience in ...
Hi, Vulnerability is often carried out with DRASTIC and similar tools. However, there is also work carried out looking at vulnerability in reverse sense; Given...
Dear Dr. Limaye, I agree with your view points. But it will be part of decision process in coming years. I would like to add another case study of groundwater ...
Dr. Kumar: Thanks for inviting me to be on the committee. I am not sure if I can make such a huge commitment. I can certainly contribute to reviewing some...
Dear readers and Dr. Kes Kesari, Actually, it is not like a course. My intentions are like series of lectures/tutorials starting from basics to case studies....
I maintain a website with hydrogeology data related to the Woburn case: http://frontpage.et.byu.edu/woburn/ Norm Jones...
Norman L. Jones
njones@...
Aug 4, 2006 3:17 am
2226
Dear members, I am thankful to the following members who have agreed to contribute as a member of Working Group for Groundwater Modelling Guidance. 1. Thom...
Kumar: Thank you for the summary of suggestions for a Groundwater Modeling Guidance document. Many of the ideas can be addressed with only minor effort, other...
DMBean
dmbean@...
Aug 7, 2006 4:09 am
2228
I thought I would write to inform the folks interested in creating a groundwater modeling tutorial that the EPA created such a document. This is a manual of 20...
You can download a scanned version from http://www.epa.gov/ada/csmos/models.html...
Richard B. Winston
rbwinston@...
Aug 8, 2006 7:14 am
2230
Agree, we have to set the web site, then we could post suggested material for reading. Perhaps we could organize our output in levels, i.e. elementary,...
In addition to Ken's recommendation, another USEPA document that may be of interest to this group is the "Ground Water Modeling Compendium" which can be viewed...
Hi Ken & Richard: Thanks for the suggestion. I also have a PDF version of the MODFLOW problem set along with the associated MODFLOW data sets. We hope to...
DMBean
dmbean@...
Aug 9, 2006 9:32 am
2233
Hi David M. Bean Is this possible for you to e mail your PDF version of the MODFLOW problem as an attach to the group. Farshid Farhani (Note: attachments are...
Dear Friends, Water wells in my area have found some problem with their screens. They closed because of sediment gathering on their holes. So the water's...
The well design should be based on the precise description of the cuttings and the geophysical logs. Selection of the proper screen material and slot size will...
Dear Amin, Normally, gravel packings are given at the time of well construction inorder to prevent clogging of screens. Well cleanup (purging) using compressed...
Dear Amin i think scaling effect of the groundwater also some times ends up in such condition, if so get it verified. i dont know whether the slushing the...
vijay kumar
geovijay2005@...
Aug 14, 2006 12:24 pm
2238
Amin: The usual practice is to construct a filter pack around the well and then purge it to eliminate the screen pluging problem beforehand, but you might try...
Dave Russell
dlr@...
Aug 15, 2006 3:32 am
2239
Hello Amir, The wells need to be re-developed to remove the sediment. I would recommend surge blow method to remove sediment from the filter pack, but I've...
Dear Amin, Isn't it unusual that all wells in an area are gathering sediment. I think you should check the local companies or authorities methodology for...
Amin: There a several ways to clear clogged screen and generally clean up a well. Assuming you have a workover rig to allow the use of downhole tools you can ...
John Reay
j.reay@...
Aug 15, 2006 3:58 am
2244
this manual is a good start http://fl.water.usgs.gov/PDF_files/twri_6_A7_guo_langevin.pdf cheers...
The reason is most likely to be encrustation by iron (and manganese) hydro-oxydes (hydrated Fe hydroxides). This develops when wells are constructed are in an...
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