Hello Mr. Davis, How you're ...

Hello Mr. Davis, How you're doing? Actually you have a little bit long path to trail before reach some very conclusive result, in my opinion. But, let's go: At First, you will have to know the geological and hydrological propieties of the site, as: type of soil by layer (the deep shall vary); deep of the groundwater table; flux, velocity and direction of the groundwater on the site. Then you shall prepare a probing plan, foreseeing the instalation of the monitoring wells, as much as necessary to identify the points of contamination. You probably already have some of those monitoring points installed. Now, for the examination, Bahrain must have a national policy against pollution that might give you the parameters of pollution control in the country. If it not exist, you can use the USEPA Soil Screening Guidance: Technical Background Document, that can be found in the link: http://www.epa.gov/superfund/health/conmedia/soil/introtbd.htm In Brazil (São Paulo State) we use a specific standard that is based on the EPA parameters. For the analisys, I recomend that you use a laboratory certified by ISO/IEC 17025, a international standard for laboratories that should ensure the data integrity. But if you need, this is the link for the methods and tests of US Environmental Protection Agency: (USEPA) www.epa.gov/wastes/hazard/testmethods/sw846/online/index.htm It can be also used the Standard Methods for water and Wastewater from AWWA as reference. This is a link of a case from USEPA monitoring: http://www2.epa.gov/sites/production/files/2013-08/documents/soeder_groundwater_monitoring_for_epa_prospective_case_study_site.pdf I'm interested in give you support. If you want to talk about or ask more, this is my e-mail: leonardo.zanata@hlrservicos.com. Best Wishes! Leonardo.