Jeths R2012-12-122012-12-121991-11-30http://hdl.handle.net/10029/260850Abstract niet beschikbaarThe Dutch groundwater quality monitoring network includes 390 monitoring points. The frequency of sampling is once a year. The objectives of the network are: - to make an inventory of the present quality in relation to soil use, type of soil and hydrogeological conditions ; - to distinguish long term changes in quality ; - to provide data for quality control and groundwater management ; - to indicate the extent of human influence on groundwater quality. This report gives the results of analysis in 1990 from 30 monitoring points in the province of Limburg.37 pnl1391-4lmggrondwaterkwaliteitmeetnet datanational groundwater qualitynetwork monitoringReport2012-12-12