Corrigendum: Hydrology Research 53 (7), 958–982: Hydrogeology and groundwater quality in the Nordic and Baltic countries, Nils-Otto Kitterød, Jens Kværner, Per Aagaard, Jurga Arustienė, Jānis Bikše, Atle Dagestad, Pål Gundersen, Birgitte Hansen, Árni Hjartarson, Enn Karro, Maris Klavins, Andres Marandi, Rasa Radienė, Inga Retike, Pekka M. Rossi and Lærke Thorling, https://doi.org/10.2166/nh.2022.018

The authors regret that Figure 3 was incorrect in their original paper and apologise for any inconvenience caused. The correct version of the figure is given below and has been updated online. (Figure Presented). There were also some minor errors in the text on page 971 of the paper. The corrections are given below and the paper has been updated online: In 2016, catchments with mainly sandy sediments had nitrate concentrations in groundwater exceeding the regulation standard of 50 mg/L for approximately 70% of the monitoring points. In loamy catchments, approximately 8% on average, the monitoring points exceeded the regulation standard. Finally there was an error in one of the column headings in Table 2. The correct version of the table is given below and has been updated online. (Table Presented).