Systems: groundwater Substances: Acesulfame (YGCFIWIQZPHFLU-UHFFFAOYSA-N) 5-Fluoro Cytosine (XRECTZIEBJDKEO-UHFFFAOYSA-N) 2-6-Dichlorobenzamide (JHSPCUHPSIUQRB-UHFFFAOYSA-N) 3-5-Diiodo-L-tyrosine (NYPYHUZRZVSYKL-ZETCQYMHSA-N) Acetochlor (VTNQPKFIQCLBDU-UHFFFAOYSA-N)