8 Groundwater Resources of Poland
155
Table 8.1 Available groundwater resources – ZDG (ZD – disposable, ZP – prospective) divided
according to river basins and water regions (as of 31.12.2015); after [37, modified by authors]
River basin
Water region Area
Disposable
groundwater
resources
Estimeted
prospective
groundwater
resources
Available
groundwater
resources
ZD
ZP
ZDG (ZD +
ZP)
[km 2 ]
[m 3 /d]
[m 3 /d]
[m 3 /d]
Vistula
Lower Vistula 35 084.10
3,107,412
423,585
3,530,997
Upper Vistula 43 110.31
1,521,075
3,033,720
4,554,795
Little Vistula 3 942.47
961,879
7912
969,791
Middle
Vistula
101,039.94
6,626,366
4,054,454
10,680,820
Oder
Lower Oder
and Western
Baltic Area
20,405.78
2,682,855
18,755
2,701,610
Upper Oder
3,829.79
518,962
–
518,962
Middle Oder 39,299.68
2,497,191
2,070,783
4,567,974
Warta
54,480.00
3,453,214
3,701,696
7,154,910
Pregoła
Łyna and
W˛ egorapa
7,521.69
72,511
1,226,065
1,298,576
Neman
Neman
2,515.14
14,694
299,998
314,692
Dniester
Dniester
233.06
–
27,000
27,000
Danube
Czadeczka
24.59
655
–
655
Black Orava
359.67
–
41,000
41,000
Morava
0.71
–
86
86
Jarft
Jarft
210.08
–
–
36,155
Elbe
Jizera
47.12
–
5713
5713
Elbe and Upa 19.42
–
2355
2355
Metuje
99.38
–
12,051
12,051
Orlica
72.52
–
8795
8795
´
Swie˙ zej
´
Swie˙ zej
161.41
–
27,779
27,779
Ücker
Ücker
14.71
2945
–
2945
Country’s overall area
312,471.57
21,459,759
14,997,902
36,457,661
which simultaneously constitute basic groundwater balance units, have been distinguished. In the predominant number of 668 water management regions, which collectively occupy 90% of the country’s area, there occur sizeable reserves of available
resources (utilisation degree of groundwater resources does not exceed 30% there).
The average groundwater reserves occur in water management regions covering 5.7%
of the country’s area – (approximately 30–60% of all resources are used there). Low
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