National Groundwater Quality monitoring network; analyses in 1991; The results of the province of Groningen
Landelijk Meetnet Grondwaterkwaliteit Analyseresultaten bemonstering 1991; Provincie Groningen
RIVM Report 728517074
The 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 control; - to indicate the extent of human influence on groundwater quality. This report gives the results of analysis in 1991 from 21 monitoring points in the province of Groningen.