Hydrozone Land development Mean depth to groundwater(scope of changes) [m] Nitrate concen-trations (scope of varia-bility) NO3 [mg/L] NV index, mean value(scope ofchanges)
Vistula floodplain terrace Several places of compact,single-family housing,recreational and touristregions, partially of anagricultural character (eco-logical agriculture) 1.91 (1.23 – 2.43) 0.44 – 114.65 60 (<10 – 100)
Marsh zones Forest-marshy territories,very limited development 1.03 – 1.15 (0.30-1.64 northzone; 0.49 – 1.94 south zone) 0.0 – 38.96 75 (<10 – 150)
Dune zones Compact forest complexes,practically no residents 2.60 – 2.67 (2.04 – 3.17 northzone; 1.97-3.13 south zone) 0.0 – 128.37 55 (<10 – 150)
Blonski level(together withpart of the up-land) Agricultural territory withseveral places of compact,single-family housing. 2.15 (0.97 - 2.99) 12.35 (1.33 –39.52) 82 (51 – 150)
Suburb of War-saw Quite compact suburbandevelopment and smallforest areas accompanyingit. Numerous focuses ofcontamination. Smallsemi-agricultural areas. 2,32 (1,53 – 2,96) 22,49 (3,55 –115,0) 114 (51 – 200)
Region of intakein Wolka Smo-lana The largest intake ofgroundwater in the KNPregion and lagging. Partial-ly developed area, agricul-tural. 3,16 (2,35 – 3,21) - 141 (51-150)
Table 11: Characteristic of groundwater vulnerability in KNP.