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Article

Geochemical Characteristics of Alluvial Aquifer in the Varaždin Region

1
Croatian Geological Survey, 10 000 Zagreb, Croatia
2
Croatian Waters, Central Water Management Laboratory, 10 000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Academic Editor: Micòl Mastrocicco
Water 2021, 13(11), 1508; https://doi.org/10.3390/w13111508
Received: 4 May 2021 / Revised: 19 May 2021 / Accepted: 24 May 2021 / Published: 27 May 2021
(This article belongs to the Section Hydrology)
The variation in the major groundwater chemistry can be controlled by dissolution and precipitation of minerals, oxidation-reduction reactions, sorption and exchange reactions, and transformation of organic matter, but it can also occur as a result of anthropogenic influence. The alluvial aquifer represents the main source of potable water for public water supply of the town Varaždin and the surrounding settlements. Sampling campaigns were carried out from June 2017 until June 2019 to collect groundwater samples from nine observation wells. Major cations and anions, dissolved organic carbon and nutrients were analyzed in the Hydrochemical Laboratory of Croatian Geological survey. The sampled waters belong to the CaMg-HCO3 hydrochemical type, except the water from observation well P-4039 that belongs to NaCa-HCO3 hydrochemical type. It was identified that groundwater chemistry is mainly controlled by hydrogeological environment (natural mechanism), but anthropogenic influence is not negligible. The results of this research have significant implications on sustainable coexistence between agricultural production and water supply. View Full-Text
Keywords: shallow alluvial aquifer; major cations and anions; nutrients; Croatia shallow alluvial aquifer; major cations and anions; nutrients; Croatia
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MDPI and ACS Style

Karlović, I.; Marković, T.; Šparica Miko, M.; Maldini, K. Geochemical Characteristics of Alluvial Aquifer in the Varaždin Region. Water 2021, 13, 1508. https://doi.org/10.3390/w13111508

AMA Style

Karlović I, Marković T, Šparica Miko M, Maldini K. Geochemical Characteristics of Alluvial Aquifer in the Varaždin Region. Water. 2021; 13(11):1508. https://doi.org/10.3390/w13111508

Chicago/Turabian Style

Karlović, Igor, Tamara Marković, Martina Šparica Miko, and Krešimir Maldini. 2021. "Geochemical Characteristics of Alluvial Aquifer in the Varaždin Region" Water 13, no. 11: 1508. https://doi.org/10.3390/w13111508

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