Works Contract 3A. 2/1 – Malinówka 1 Reservoir
Works Contract 3A. 2/1 – Malinówka 1 Reservoir The planned small dry flood storage reservoir Malinówka 1 is located within the City of Cra- cow, in the area of the following streets: A4 Motorway, Mała Góra, Szastera, and Nad Ser- afą. On the west it reaches vicinity of Wielicka Street, and on the east – developed areas west of the railway line crossed by the River Serafa with the Malinówka Stream reaching it. The entire area forms a depression in reference to surrounding sites. The Malinówka Stream – within the entire reach of the discussed area – is regulated. The area of Works Contract 3A.2/1 covers farmland and xxxxxxx with field vegetation (shrubs and shrubbed tufts). Currently there (according to extracts from land registers) main- ly are the following: permanent xxxxxxx (ŁII, ŁIII) and arable land (RIIIb, RIVb), as well as roads (dr) and grounds underneath flowing surface water. Location of the Works Contract 3A.2/1 has been presented on the drawing presented below (Fig. 1) and in Appendix 5 to this EMP – Map with location of the Contract.
Works Contract 3A. 2/2 – Malinówka 2 Reservoir The planned small dry flood storage reservoir Malinówka 2 is located within the boundaries of the City of Cracow and of the City of Wieliczka. It comprises parts of the Malinówka stream valley on the western side of the Krzyszkowicki Forest, just downstream of the A4 Motorway. The area of Works Contract 3A.2/2 covers farmland and xxxxxxx with field vegetation (shrubs and shrubbed tufts). Currently there (according to extracts from land registers) are the following: permanent pastures (PsIII, PsIV, PsV), afforested and shrubbed grounds (LzIV) and arable lands (RIVb, RV, RVI), permanent xxxxxxx (ŁIV, ŁV), roads (dr), ditches (W), waste land (N), and grounds underneath flowing surface water (Wp), industrial areas (Ba), as well as residential areas (B) – at the boundaries. Location of the Works Contract 3A.2/2 has been presented on the drawing presented below (Fig. 2) and in Appendix 5 to this EMP – Map with location of the Contract.
Works Contract 3A. 2/1 – Malinówka 1 Reservoir The scope of Works Contract 3A.2/1 comprises the following elements7: Construction of the dry flood storage reservoir Malinówka 1 at chainage km 0+231 of the Malinówka Stream (with an earth-fill front dam, earth-fill side dams, spillway and discharge facilities, and a stilling basin), having the following parame- ters: o hydraulic class of the structure – III o damming height – 4.8 m o damming elevation MaxSL – 216.5 m a.s.l. o capacity of the reservoir at MaxSL – 114 000 m3 o flood area at MaxSL – about 6.2 ha o flow Q0.2% at the inlet to the reservoir – 21.18 m3/s o flow Q0.5% at the inlet to the reservoir – 8.35 m3/s o flow Q1% at the inlet to the reservoir – 5.66 m3/s o reduced flow Q(reduced)0.2% – 12.85 m3/s
Works Contract 3A. 2/2 – Malinówka 2 Reservoir The scope of Works Contract 3A.2/2 comprises the following elements9: Construction of the dry flood storage reservoir Malinówka 2 at chainage km 2+279 of the Malinówka Stream (with an earth-fill front dam, spillway and discharge facilities, and a stilling basin), having the following parameters: o hydraulic class of the structure – III o damming height – 3.8 m o damming elevation MaxSL – 229.5 m a.s.l. o capacity of the reservoir at MaxSL – 49 000 m3 o flood area at MaxSL – about 2.3 ha o flow Q0.2% at the inlet to the reservoir – 21.10 m3/s o flow Q0.5% at the inlet to the reservoir – 7.80 m3/s o flow Q1% at the inlet to the reservoir – 4.63 m3/s o reduced flow Q(reduced)0.2% – 17.67 m3/s o reduced flow Q(reduced)0.5% – 5.66 m3/s o reduced flow Q(reduced)1% – 2.39 m3/s o dam’s crest elevation – 230.2 m a.s.l. o crest width – 4 m o length of the front dam – about 100 m o riverside slope inclination – 1:3 o landside slope inclination – 1:2.5 8 Based upon the valid Bill of Quantities.
Works Contract 3A. 2/1 – Malinówka 1 Reservoir According to the physical-geographical regionalization by Xxxxxxxxx (2001), including follow- ing modifications to the aforementioned regionalization, the implementation site for the Works Contract 3A.2/1 is located within Nadwiślańska Lowland and Krakowskie Foothills (Fig. 3): megaregion: Carpathian Region; province: Western Carpathian Mountains with Western and Northern Podkarpacie; subprovince: Northern Podkarpacie; macroregion: Sandomierska Valley; mezoregion: Nadwiślańska Lowland (northern, western, and north-western parts) and Krakowskie Foothills (southern, eastern, and south-eastern parts).
Works Contract 3A. 2/2 – Malinówka 2 Reservoir According to the physical-geographical regionalization by Xxxxxxxxx (2001), including follow- ing modifications to the aforementioned regionalization, the implementation site for the Works Contract 3A.2/2 is entirely located within Krakowskie Foothills (Fig. 4): megaregion: Carpathian Region; province: Western Carpathian Mountains with Western and Northern Podkarpacie; subprovince: Northern Podkarpacie; macroregion: Sandomierska Valley; mezoregion: Krakowskie Foothills. Fig. 4. Location of the Works Contract 3A.2/2 – Malinówka 2 Reservoir in reference to physical-geographical units (source: own materials 15) 15 Based upon: Xxxxxxxxx X.: Geografia regionalna Polski, Wyd. Naukowe PWN, Warsaw 2001, and Salon J. et con. 2018 Physical-geographical mesoregions of Poland: Verification and adjustment of boundaries on the basis of contemporary spatial data. Geographia Polonica vol.91, no.2.
Works Contract 3A. 2/1 – Malinówka 1 Reservoir Currently the area of the planned dry reservoir Malinówka 1 (Works Contract 3A.2/1) is main- ly formed by waste land with local groups of trees and shrubs. Ground and water conditions were recognized in the area of the planned reservoir (up to a depth of ~2.0 m in the reservoir’s bowl and 4.0 m b.g.l. in the dam area). The top layer with a thickness of ~0.2 to ~0.7 m is formed by soil and made grounds – top-soil sand. Be- low, up to a depth of from ~1.0 m to over ~2.5 m there are dusty clays, xxxxx clays, com- pacted clays and dusty clays with interlays/inter-layers of clay silt, humid low plasticity clays and plastic clays. Dusty sand, fine sand, semi-compacted sand – usually with admixture of dust – are located deeper (Source: Environmental Impact Report – Dry Flood Storage Res- ervoirs in the Serafa River Basin, Cracow, May 2012). According to the soil and agricultural map of the Małopolskie Province16 the areas, where construction of a dry reservoir is planned, are qualified to the following soil and agricultural complexes: very good and good green land (on alluvial soil), good rye complex (rye and po- tatoes) (on leached brown soil and on acid brown soil), and strong grain and fodder complex (on alluvial soil). The area of the planned dry reservoir Malinówka 1 is formed by farmland and xxxxxxx with field plants (shrubs and tree tufts). Currently there (according to extracts from land registers) mainly are the following: permanent xxxxxxx (ŁII, ŁIII) and arable land (RIIIb, RIVb), as well as roads (dr) and grounds underneath flowing surface water. In case of the discussed area, there are the following soil classes underneath arable land: II – very good arable soil, IIIb – averagely good arable soil, IVb – average quality, worse arable soil.
Works Contract 3A. 2/2 – Malinówka 2 Reservoir Currently the area of the planned dry reservoir Malinówka 2 (Works Contract 3A.2/2) is main- ly formed by afforested land with local groups of trees and shrubs. The works done for the purpose of the EIA Report proved that geological composition of the area in question includes Quaternary formations. The top layer with a thickness of ~0.3 m is formed by soil, and further – up to a depth of ~3.0 m – by dusty clays, xxxxx clays, compact- xx xxxxx xxxxx clays – hard plastic and plastic – locally with admixture of organic particles, grey-black soft plastic silt. Medium and fine sands – usually with admixture, interlays of dust and clay – are located deeper. They are brown and grey, and are averagely compacted. Ar- chival materials prove that the older subbase is made by Tertiary formations represented by loam, the top of which is located in a depth of around 15.0 m. (Source: Environmental Impact Report – Dry Flood Storage Reservoirs in the Serafa River Basin, Cracow, May 2012). According to the soil and agricultural map of the Małopolskie Province17 the areas, where construction of a dry reservoir is planned, are qualified to the following soil and agricultural complexes: medium green land (on specific brown soil – alluvial sediments and alluvial gleysol), weak and very weak green land (on alluvial gleysol and on podzoluvisol and pseu- do-podzoluvisol), weak rye complex (rye and potatoes) on podzoluvisol and pseudo- podzoluvisol, strong grain and fodder complex (on specific brown soil – alluvial sediments), forest land (on podzoluvisol and pseudo-podzoluvisol and on specific brown soil – alluvial sediments), and grounds of the State Forest Unit. The area of the planned dry reservoir Malinówka 2 is formed by farmland and xxxxxxx with field plants (shrubs and tree tufts). Currently there (according to extracts from land registers) mainly are the following: permanent pastures (PsIII, PsIV, PsV), afforested and shrubbed grounds (LzIV) and arable lands (RIVb, RV, RVI), permanent xxxxxxx (ŁIV, ŁV), roads (dr), ditches (W), waste land (N), and grounds underneath flowing surface water (Wp), industrial areas (Ba), as well as residential areas (B) – at the boundaries. 16 xxxxx://xxxx.xxxxxxxxxxxxx.xx/mapa/glebowo_rolnicza.html 17 xxxxx://xxxx.xxxxxxxxxxxxx.xx/mapa/glebowo_rolnicza.html In case of the discussed area, there are the following soil classes underneath arable land: III – good and averagely good arable soil, IV – average quality ...
Works Contract 3A. 2/1 – Malinówka 1 Reservoir Geological formation and hydrogeological conditions In geological terms the implementation area for the Works Contract 3A.2/1 is located within Przedkarpackie Depression – in its western part. The depression is filled with Miocene mo- lassic sediments. Neogene sediments are located in rocks of various age – from Precambri- an period to Cretaceous period, and in tectonic units of various age. Thickness of those sed- iments is diversified and reflects the subbase morphology. Tertiary sediments (Neogene) in the form of Skawa layers made of loam and – locally – with admixture of sand are covered with a layer of Quaternary sediments made of sand and fluvial gravel and alluvial soil (loam, clay, sand).
