Hydrogeological Considerations on the Western Sector of the Danube Delta - a Case Study for the Caraorman and Saraturile Fluvial-Marine Levee (with Similarities for the Letea Levee)

Groundwater in the western sector of the Danube Delta exhibits distinct hydrogeological patterns influenced by marine and riverine interactions. Research reveals that groundwater in the Caraorman levee remains stable with slight eastern rises, maintaining undrinkable quality due to high mineralization and chlorine content from marine influence. Freshwater lenses between dunes, though scarce, possess high drinking quality but are ephemeral. The Saraturile levee's groundwater is heavily influenced by Black Sea salinity, leading to severe soil salinization during summer. Groundwater movement mirrors the Danube River's flow direction but at a much slower pace due to gentle slopes. This study, comparing data from 1996-2006 with historical records, highlights the delicate balance of groundwater dynamics in this UNESCO-listed biosphere reserve.

Romanescu, G., & Cojocaru, I. (2010). HYDROGEOLOGICAL CONSIDERATIONS ON THE WESTERN SECTOR OF THE DANUBE DELTA - A CASE STUDY FOR THE CARAORMAN AND SARATURILE FLUVIAL-MARINE LEVEES (WITH SIMILARITIES FOR THE LETEA LEVEE). Environmental Engineering and Management Journal, 9(6), 795–806. https://doi.org/10.30638/eemj.2010.106