Watercourse

VN Radošovce II.

fishing district
1
fishing district length
0.4km
region
Trnava Region
Aerial image of watercourse VN Radošovce II. with the line highlighted
Blue line: course of the watercourse (approximate). Orthophoto mosaic of Slovakia © GKÚ Bratislava, CC BY 4.0Google Maps

By the water now

Today on the VN Radošovce II. watercourse

Fishing conditions score, the best window of the day and fishing districts from the best conditions

Average of the watercourse's fishing districts

Low activity · average of one fishing district

The number in the header is an estimate for the middle of the watercourse based on weather and measurements. The average of the fishing districts also counts satellite data, shading and geology of each district.

Best window today

06:00–08:00

VN Radošovce II., window score 18.

The score is an estimate of conditions based on weather, water and surroundings, not a bite forecast. Recalculated at 09:04.

Map and fishing districts of the watercourse

The course of the watercourse and its fishing districts. You can switch the line color to today's conditions, quality or any other parameter.

Detailed filtersregion, district, riverbed, depth, shading, satellites, water chemistry and pollution, fish, geology

1445fishing districts
Pick a category to narrow the selection. Next to each option you can see how many fishing districts remain.
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    Elevation profile: reservoir

    Terrain height along the fishing district and the approximate water level.

    Reservoir This is a reservoir, so the watercourse is not assessed here: the water has no current, fall or gradient. The chart shows the terrain height along the fishing district.

    2362382402422440.0 km0.1 km0.2 km0.3 km0.4 km
    Terrain elevation profile (Reservoir): from 243 to 237 m a.s.l. over 0.4 km.
    Terrain height along the fishing district line, from the start (left) to the end
    Approximate water level
    238 m a.s.l.
    Lowest point of the profile
    237 m a.s.l.
    Highest point of the profile
    243 m a.s.l.

    Source: Open Topo Data (eudem25m), 4 Nov 2026. The height is approximate (error of a few metres).

    Terrain in 3D

    Loading the 3D terrain model…

    Historical images

    Changes in the surroundings and nature from 2017 to 2023: how the banks, vegetation and landscape around the water change. The images switch automatically; you can also browse them by hand.

    Aerial image of watercourse VN Radošovce II. from 2017
    2017imaged 24 Aug 2017
    Aerial image of watercourse VN Radošovce II. from 2020
    2020imaged 22 Aug 2020
    Aerial image of watercourse VN Radošovce II. from 2023
    2023imaged 27 May 2023

    Orthophoto mosaic of Slovakia © GKÚ Bratislava, NLC Zvolen. The year and day of imaging depend on the location, so individual years may differ in season and weather.

    Water pollution on the VN Radošovce II. watercourse

    Water quality according to SHMÚ, wastewater treatment plants near the fishing districts and groundwater nearby

    Groundwater: measured valuestypical value from stations within 10 km, 2025

    1 of 1 fishing district with measurements has groundwater nearby with a value above the limit for at least one indicator.

    • nitrates 25 to 50 mg/l1
    • ammonium or nitrites above the standard at at least one station1

    Highest nitrates

    Source: SHMÚ (yearbooks on surface and groundwater quality), the register of wastewater treatment plants from VÚVH and the EEA. A SHMÚ site is assigned to a fishing district by the same watercourse name and by distance; the yearbook lists the sites that failed the standard, so a missing site is not proof of clean water.

    Geology and geochemistry of the VN Radošovce II. stream

    Metals and gold in river sediments and water, old mine workings and deposits, boreholes with archive reports, geothermal energy, environmental burdens and landslides around the stream

    The overview is based on public registers and atlases of the State Geological Institute of Dionýz Štúr. The search covers a zone around the water of all fishing districts of the stream (0 km of line in total): stream samples within 1 km, boreholes, mine workings and burdens within 3 km, ore occurrences within 5 km, geothermal sources within 10 km.

    Rock under the water

    River alluvium100% of the water line

    Gravelly and sandy bottom and floodplains; the water is replenished from groundwater in the alluvium. Geological Map of Slovakia 1:50,000.

    510

    Water according to the atlas

    pH 8.3modelled estimate

    water type Ca–Mg–HCO₃–SO₄

    Mineralisation 670 mg/l, very hard water (23.4 °dH). Interpolation of measurements from the Geochemical Atlas of Slovakia, not a measurement in the stream.

    Elements in river sediment

    0 from 15elements in the top 10 %

    highest: Selenium 0.323 mg/kg

    Position of the highest-ranked element among the sample points on streams in Slovakia: percentile 67. Interpolation of the Geochemical Atlas of river sediments.

    1 km2 km35 °C65 °C

    Heat underfoot

    35°C at 1,000 m depth

    heat flow 50 mW/m²

    At a depth of 2,000 m about 65 °C (increase of 30 °C per kilometre). Atlas of Geothermal Energy of Slovakia.

    20200

    Natural gamma radiation

    57nGy/h dose rate

    percentile 80 in Slovakia

    Natural background from rocks and soil (potassium, uranium, thorium), not a value measured at the water. Airborne gamma-ray spectrometry by ŠGÚDŠ.

    Old mine workings

    0objects within 3 km

    No old mine working is recorded within 3 km of the water.

    Gold in river sediment

    0samples with gold

    No gold was found in river sediment samples within 1 km of the water. The samples do not cover every stream, so this does not mean there is no gold here.

    Trace elements in the stream water

    1 from 9indicators in the top 5 %

    highest: Copper 65.0 μg/l

    Position of the highest measured value in the distribution of all surface water samples in Slovakia: percentile 99 (VN Radošovce II.).

    Boreholes and groundwater analyses

    40boreholes within 3 km

    147 water analyses nearby

    Of these, 40 have an archive report from Geofond. The boreholes are hydrogeological, geological, engineering-geological and other.

    Geothermal energy

    –

    8 geothermal and mineral water springs within 10 km.

    Environmental burdens and landfills

    4sites within 3 km

    4 landfills

    No environmental burden is registered within 3 km; landfills are only recorded.

    Deposits and ore occurrences

    3records within 5 km

    3 ore occurrences

    Geofond registers, the metallogenetic map and the mineral resources map.

    Landslides and slope deformations

    0areas within 3 km

    Documented landslides in the Geofond register. A landslide into a stream can cloud the water and change the bed.

    Geological structure beneath the water

    Which rock lies beneath the water line (Geological Map of Slovakia 1:50,000), how old it is, how thick the Quaternary cover is and in which tectonic unit the water flows. The bedrock decides the hardness of the water, the bottom, the turbidity after rain and the abundance of springs.

    The points follow the water line (for a stream and a basin, fishing district after fishing district). The strip is a cross-section by distance, not a map; the width of a section corresponds to the number of points.

    • River alluvium100%SR 72 %

    marker on the bar: share among all sample points on streams in Slovakia

    River alluvium: Gravelly and sandy bottom and floodplains; the water is replenished from groundwater in the alluvium.

    Geological age of the rocks

    • Quaternary100%

    Most common rock units

    SystemAgeUnitPoints
    QuaternaryHolocenefluvial sediments: lithofacial undivided alluvial clays, or sandy to gravelly clays of valleys and floodplains1×

    Quaternary cover

    • aeolian sediments100%SR 3.8 %

    marker on the bar: share among all sample points on streams in Slovakia

    Neotectonic units

    • positive unit (mountain range)100%SR 60 %

    marker on the bar: share among all sample points on streams in Slovakia

    Direction of neotectonic movements

    • small uplift100%SR 7.7 %

    marker on the bar: share among all sample points on streams in Slovakia

    Regional geological division

    • intramontane basins100%SR 44 %

    marker on the bar: share among all sample points on streams in Slovakia

    Regional geological division (subunits)

    • Vienna Basin100%SR 4.0 %

    marker on the bar: share among all sample points on streams in Slovakia

    Susceptibility of the area to slope deformations

    • Region of stable areas100%SR 95 %

    marker on the bar: share among all sample points on streams in Slovakia

    The map covers 1 of 1 points on the water line.

    Hydrogeology: aquifers and groundwater

    Streams and rivers are fed by groundwater. Hydrogeological maps show in which rocks the water is stored, how permeable they are and what the water in them is like. The data come from ŠGÚDŠ maps, not from measurements at a particular water.

    Type of permeability (basic hydrogeological map 1:50,000)

    • intergranular100%SR 86 %

    marker on the bar: share among all sample points on streams in Slovakia

    Hydrogeological function

    • aquifer100%SR 95 %

    marker on the bar: share among all sample points on streams in Slovakia

    Main hydrogeological region

    • Neogene of the Chvojnická pahorkatina100%SR 0.0 %

    marker on the bar: share among all sample points on streams in Slovakia

    Surface water chemistry according to the atlas

    Modelled composition of the water in the area the fishing district line runs through. The rasters of the Geochemical Atlas of Slovakia (surface waters) are an interpolation of measurements in sampled streams, so they show the typical background of the area, not a measurement in a particular stream.

    510

    Water acidity

    pH 8.26typical range

    Most rivers and streams in Slovakia have a pH of 6.5 to 8.5. More acidic water is found in streams on acidic rocks (granites, quartzites), more alkaline water near limestones.

    Water hardness

    23.4°dH, very hard

    Sum of calcium and magnesium (4.18 mmol/l). Hard water is buffered and its pH changes more slowly; soft water is more sensitive to acid rain.

    Dissolved substances

    670mg/l mineralisation

    Total amount of dissolved minerals. Clean mountain water has tens of mg/l, lowland and limestone waters hundreds.

    Ionic composition of the water

    Water type by dominant ions: Ca–Mg–HCO₃–SO₄

    Shares are in equivalents, the usual way of comparing the composition of waters.

    Major ions

    • SulphatesSO4135 mg/lpercentile 94
    • CalciumCa108 mg/lpercentile 91
    • MagnesiumMg36.0 mg/lpercentile 89
    • PotassiumK6.96 mg/lpercentile 85
    • BicarbonatesHCO3329 mg/lpercentile 83
    • SodiumNa19.5 mg/lpercentile 79
    • ChloridesCl20.9 mg/lpercentile 70
    • FluoridesF0.129 mg/lpercentile 57

    dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile)

    Nutrients and organic pollution

    • NitratesNO313.2 mg/lpercentile 82
    • Chemical oxygen demandChSK4.31 mg/lpercentile 72
    • PhosphatesPO40.310 mg/lpercentile 69
    • AmmoniumNH40.172 mg/lpercentile 64

    Metals

    • ZincZn26.0 μg/lpercentile 91
    • ManganeseMn63.5 μg/lpercentile 69
    • AluminiumAl18.8 μg/lpercentile 17
    • IronFe0.0120 mg/lpercentile 2

    Elements in river sediments

    The Geochemical Atlas of Slovakia (river sediments) describes what the river carries in the fine material on its bed. Sediment collects metals from rocks, ore occurrences and past mining and industry. It is not a legal limit or a health risk assessment: it shows how an element on this stream ranks among streams in Slovakia.

    Potentially toxic and trace elements

    • SeleniumSe0.323 mg/kgpercentile 67
    • BismuthBi0.225 mg/kgpercentile 53
    • TinSn2.57 mg/kgpercentile 46
    • MolybdenumMo0.334 mg/kgpercentile 41
    • ChromiumCr65.2 mg/kgpercentile 38
    • CopperCu20.8 mg/kgpercentile 37
    • ZincZn84.9 mg/kgpercentile 37
    • NickelNi21.2 mg/kgpercentile 33
    • CobaltCo7.14 mg/kgpercentile 29
    • LeadPb11.3 mg/kgpercentile 21
    • ArsenicAs4.66 mg/kgpercentile 21
    • VanadiumV56.0 mg/kgpercentile 20
    • CadmiumCd0.0704 mg/kgpercentile 14
    • MercuryHg0.0439 mg/kgpercentile 9
    • AntimonySb0.230 mg/kgpercentile 5

    dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile)

    Major elements (iron, aluminium, calcium, magnesium, potassium, sodium, titanium, manganese, phosphorus)
    • CalciumCa2.58 %percentile 60
    • PotassiumK1.54 %percentile 54
    • TitaniumTi4,550 mg/kgpercentile 53
    • SodiumNa0.873 %percentile 51
    • ManganeseMn799 mg/kgpercentile 45
    • PhosphorusP682 mg/kgpercentile 28
    • AluminiumAl4.51 %percentile 12
    • IronFe1.96 %percentile 9
    • MagnesiumMg0.538 %percentile 7
    Further elements (barium, strontium, lithium, rubidium, zirconium, yttrium, cerium, boron, beryllium, gallium)
    • CeriumCe72.4 mg/kgpercentile 84
    • ZirconiumZr524 mg/kgpercentile 84
    • GalliumGa15.0 mg/kgpercentile 59
    • RubidiumRb90.5 mg/kgpercentile 55
    • BoronB62.0 mg/kgpercentile 55
    • BerylliumBe1.47 mg/kgpercentile 53
    • YttriumY26.8 mg/kgpercentile 45
    • StrontiumSr124 mg/kgpercentile 39
    • BariumBa379 mg/kgpercentile 28
    • LithiumLi24.1 mg/kgpercentile 19

    Natural radioactivity and radon

    Airborne gamma-ray spectrometry by ŠGÚDŠ measures radiation from potassium, uranium and thorium in rocks and soil. Granites and some acidic volcanic rocks have the highest values, limestones and floodplains the lowest. Caesium-137 is a remnant of fallout from the Chernobyl accident and nuclear weapons tests.

    20200

    Gamma radiation dose rate

    57nGy/h in air

    Natural background from rocks and soil; higher over granites and some acidic volcanic rocks, lower over limestones and floodplains.

    Radon risk of the bedrock

    low

    Radon is a natural gas from rocks. The risk concerns buildings and cellars, not the water in the stream; it shows what the bedrock is like.

    • Equivalent thorium (eTh)eTh8.96 ppm84th percentile
    • Potassium (K)K1.43 %percentile 77
    • Equivalent uranium (eU)eU2.80 ppm73th percentile

    dot: average along the water line, line: from the lowest to the highest value, scale: position among sample points on streams in Slovakia (0 to 100th percentile)

    • Areal activity of 137CsCS1371,644 Bq/m²percentile 57

    Radon risk by isopleths

    • low100%SR 36 %

    marker on the bar: share among all sample points on streams in Slovakia

    Geophysical fields: magnetics and gravity

    Maps of the magnetic field and gravity (ŠGÚDŠ) reveal what lies beneath the sediments and the surface: volcanic bodies, faults and crustal thickness. For an angler they are interesting indirectly: they show where the bedrock changes, and with it the water.

    SVJZ

    Magnetic anomaly

    +46nT

    range 46 to 46 nT

    Deviation of the Earth's magnetic field from its surroundings. Positive and negative anomalies reveal rocks with magnetite (basalts, basic volcanic rocks) and boundaries in the bedrock.

    Bouguer gravity anomaly

    -36mGal

    residual +4.3 mGal

    Negative values lie over thick sediments and under mountains (light crust), positive over dense rocks and thinner crust. It shows the structure of the Earth's crust, not the water.

    Geothermal potential

    The Atlas of Geothermal Energy of Slovakia records rock temperature and heat flow from the Earth's interior. It is the potential of the area, not the actual warmth of the water in the stream. Specific geothermal boreholes and springs near this water are in the geothermal energy section below.

    1 km2 km35 °C65 °C

    Rock temperature with depth

    35 / 65 °Cat depths of 1,000 and 2,000 m

    increase of 30 °C per km

    The line shows the rock temperature; the dotted part is only an extension to the surface. Heat flow 50 mW/m².

    Relief, climate and soils

    A basin is not just water: slope and elevation determine the speed of runoff, climate the temperature and amount of water, and soils what is washed into the stream. The data come from the geomorphological division, climatic-geographical types and soil maps of ŠGÚDŠ.

    • Elevation of geomorphological units (from–to)160–346m a.s.l.
    • Average elevation of the units229m a.s.l.
    • Average slope3.7°
    • Average January temperature-2.8°C
    • Average July temperature19.0°C
    • Annual precipitation675mm

    Geomorphological units

    • Chvojnica Hills100%SR 0.0 %

    marker on the bar: share among all sample points on streams in Slovakia

    Geomorphological regions

    • Záhorie Lowland100%SR 2.5 %

    marker on the bar: share among all sample points on streams in Slovakia

    Climatic-geographical types

    • lowland climate100%SR 38 %

    marker on the bar: share among all sample points on streams in Slovakia

    Susceptibility of soils to acidification

    • soils susceptible to acidification100%SR 31 %

    marker on the bar: share among all sample points on streams in Slovakia

    Soil contamination (map 1:500,000)

    • relatively clean soil100%SR 53 %

    marker on the bar: share among all sample points on streams in Slovakia

    Lithogeochemical types

    • Neogene100%SR 48 %

    marker on the bar: share among all sample points on streams in Slovakia

    Map of the corridor

    Where the nearest mine workings, deposits, burdens, geothermal boreholes and gold finds are. Groups can be switched off.

    Koválovec ( Výmol nad dedinou) – Koválovec – occasional (920 m from the water)Radošovce – Hliníky – Radošovce – cannot be estimated (1.2 km from the water)Radošovce – none (2.2 km from the water)Chropov – permanent (2.8 km from the water)a1 (2.7 km from the water)a1 (5.8 km from the water)b1 (6.8 km from the water)a1 (6.8 km from the water)a1 (6.9 km from the water)a1 (8.6 km from the water)a1 (8.6 km from the water)a1 (8.7 km from the water)Chropov – building stone – conglomerate (2.7 km from the water)Lopašov – building stone – conglomerate, sandstone (4.2 km from the water)Lopašov – building stone – sandstone (4.6 km from the water)Radošovce – úzkoprofilový vrt s obyčajnou pitnou a ú (1.2 km from the water)Radošovce – úzkoprofilový vrt s obyčajnou pitnou a ú (1.5 km from the water)Radošovce – úzkoprofilový vrt s obyčajnou pitnou a ú (1.7 km from the water)Radošovce – širokoprofilový vrt (Ø vŕtania nad 600 m (1.8 km from the water)Radošovce – širokoprofilový vrt (Ø vŕtania nad 600 m (2.0 km from the water)Radošovce – úzkoprofilový vrt s obyčajnou pitnou a ú (2.0 km from the water)JRD-Radošovce – negative borehole (2.1 km from the water)Radošovce – širokoprofilový vrt (Ø vŕtania nad 600 m (2.1 km from the water)Radošovce – širokoprofilový vrt (Ø vŕtania nad 600 m (2.2 km from the water)Radošovce – širokoprofilový vrt (Ø vŕtania nad 600 m (2.2 km from the water)Dubovce – širokoprofilový vrt (Ø vŕtania nad 600 m (2.9 km from the water)Mokrý Háj – monitoring borehole (2.9 km from the water)existujúci hydrogeologický vrt – Hydrogeological boreholes (1.2 km from the water)vodárensky využívaný prameň – Groundwater springs (1.7 km from the water)vodárensky využívaný a monitorovaný prameň – Groundwater springs (1.7 km from the water)existujúci hydrogeologický vrt – Hydrogeological boreholes (1.7 km from the water)existujúci hydrogeologický vrt – Hydrogeological boreholes (2.0 km from the water)existujúci hydrogeologický vrt – Hydrogeological boreholes (2.1 km from the water)existujúci hydrogeologický vrt – Hydrogeological boreholes (2.2 km from the water)existujúci hydrogeologický vrt – Hydrogeological boreholes (2.2 km from the water)existujúci hydrogeologický vrt – Hydrogeological boreholes (2.9 km from the water)prameň – Groundwater springs (2.9 km from the water)2 km

    The line is the water of the fishing district, the light band is the 3 km zone in which boreholes, mine workings and burdens were searched for. The map shows the nearest objects (at most a few dozen from each register), not all of them. The points correspond to the position in the register; area objects are marked by their centre.

    Trace elements in surface waters

    Arsenic, antimony, cadmium, lead, copper, zinc and other elements in samples from rivers and streams (Geochemical Atlas of Slovakia, surface waters, 2015). The bar shows where the highest value lies among all samples in Slovakia; the light marker is the median of the samples at this water.

    • CopperCuextreme (top 1 %)
      highest 65.0 μg/lmedian 31.0 μg/l3 samples

      Highest value: VN Radošovce II.2002, 100 m from the water. Comparison: percentile 99 of all samples in Slovakia.

    • BariumBaelevated (top 10 %)
      highest 95.0 μg/lmedian 55.0 μg/l3 samples

      Highest value: Bezmen. prítok VN Radošovce, pod mostíkom a tabuľou obce Kov2002, 920 m from the water. Comparison: percentile 90 of all samples in Slovakia.

    • CadmiumCdelevated (top 10 %)
      highest 0.300 μg/lmedian 0.150 μg/l3 samples67 % below the limit of quantification

      Highest value: VN Radošovce II., 100 m from the water. Comparison: percentile 90 of all samples in Slovakia.

    • LithiumLislightly elevated
      highest 22.0 μg/lmedian 16.0 μg/l3 samples33 % below the limit of quantification

      Highest value: Bezmen. prítok VN Radošovce, pod mostíkom a tabuľou obce Kov2002, 920 m from the water. Comparison: percentile 86 of all samples in Slovakia.

    • ArsenicAstypical value
      highest 1.00 μg/lmedian 0.500 μg/l3 samples67 % below the limit of quantification

      Highest value: VN Radošovce II.2002, 100 m from the water. Comparison: percentile 50 of all samples in Slovakia.

    • SeleniumSebelow half of Slovakia
      highest 0.500 μg/lmedian 0.500 μg/l3 samples100 % below the limit of quantification

      Highest value: Bezmen. prítok VN Radošovce, pod mostíkom a tabuľou obce Kov2002, 920 m from the water. Comparison: percentile 46 of all samples in Slovakia.

    • LeadPbbelow half of Slovakia
      highest 2.50 μg/lmedian 2.50 μg/l3 samples100 % below the limit of quantification

      Highest value: Bezmen. prítok VN Radošovce, pod mostíkom a tabuľou obce Kov2002, 920 m from the water. Comparison: percentile 43 of all samples in Slovakia.

    • AntimonySbbelow half of Slovakia
      highest 0.500 μg/lmedian 0.500 μg/l3 samples100 % below the limit of quantification

      Highest value: Bezmen. prítok VN Radošovce, pod mostíkom a tabuľou obce Kov2002, 920 m from the water. Comparison: percentile 37 of all samples in Slovakia.

    • ChromiumCrbelow half of Slovakia
      highest 1.00 μg/lmedian 1.00 μg/l3 samples100 % below the limit of quantification

      Highest value: Bezmen. prítok VN Radošovce, pod mostíkom a tabuľou obce Kov2002, 920 m from the water. Comparison: percentile 32 of all samples in Slovakia.

    Major ions, mineralisation and pH

    Basic water chemistry: which rocks the minerals in it come from.

    • Silicon dioxideSiO2slightly elevated
      highest 21.3 mg/lmedian 16.6 mg/l3 samples

      Highest value: Bezmen. prítok VN Radošovce, pod mostíkom a tabuľou obce Kov2002, 920 m from the water. Comparison: percentile 79 of all samples in Slovakia.

    Groundwater: chemistry, water types and radioactivity

    Hydrogeochemical objects (analyses of springs and boreholes), the geochemical atlas of groundwater (1996) and radiohydrochemical sampling. Groundwater feeds streams, so its composition also affects the water in the stream.

    Metals in groundwater

    • LithiumLiextreme (top 1 %)
      highest 162 μg/lmedian 60.5 μg/l12 samples

      Highest value: studňa1993, 2.5 km from the water. Comparison: percentile 99 of all samples in Slovakia.

    • SeleniumSehigh (top 5 %)
      highest 6.30 μg/lmedian 1.80 μg/l12 samples33 % below the limit of quantification

      Highest value: studňa1993, 1.8 km from the water. Comparison: percentile 99 of all samples in Slovakia.

    • CopperCuhigh (top 5 %)
      highest 8.40 μg/lmedian 1.95 μg/l12 samples

      Highest value: studňa1993, 1.5 km from the water. Comparison: percentile 96 of all samples in Slovakia.

    • AntimonySbhigh (top 5 %)
      highest 1.00 μg/lmedian 0.150 μg/l12 samples50 % below the limit of quantification

      Highest value: studňa1993, 1.4 km from the water. Comparison: percentile 95 of all samples in Slovakia.

    • ZincZnhigh (top 5 %)
      highest 1,248 μg/lmedian 126 μg/l12 samples

      Highest value: studňa1993, 2.5 km from the water. Comparison: percentile 95 of all samples in Slovakia.

    • ArsenicAshigh (top 5 %)
      highest 4.30 μg/lmedian 1.50 μg/l12 samples17 % below the limit of quantification

      Highest value: studňa1993, 1.5 km from the water. Comparison: percentile 95 of all samples in Slovakia.

    • LeadPbhigh (top 5 %)
      highest 3.00 μg/lmedian 0.500 μg/l12 samples75 % below the limit of quantification

      Highest value: studňa1993, 1.4 km from the water. Comparison: percentile 95 of all samples in Slovakia.

    • AluminiumAlelevated (top 10 %)
      highest 0.0700 mg/lmedian 0.00500 mg/l12 samples75 % below the limit of quantification

      Highest value: studňa1993, 2.5 km from the water. Comparison: percentile 94 of all samples in Slovakia.

    • ChromiumCrelevated (top 10 %)
      highest 2.00 μg/lmedian 0.250 μg/l12 samples67 % below the limit of quantification

      Highest value: studňa1993, 900 m from the water. Comparison: percentile 90 of all samples in Slovakia.

    • IronFetypical value
      highest 0.00500 mg/lmedian 0.00500 mg/l5 samples100 % below the limit of quantification

      Highest value: studňa1993, 2.2 km from the water. Comparison: percentile 50 of all samples in Slovakia.

    • CadmiumCdbelow half of Slovakia
      highest 0.250 μg/lmedian 0.250 μg/l12 samples100 % below the limit of quantification

      Highest value: studňa1993, 2.2 km from the water. Comparison: percentile 47 of all samples in Slovakia.

    • MercuryHgbelow half of Slovakia
      highest 0.100 μg/lmedian 0.100 μg/l12 samples100 % below the limit of quantification

      Highest value: studňa1993, 2.2 km from the water. Comparison: percentile 46 of all samples in Slovakia.

    Radon in waters

    Type of siteSamplesHighest radonMedian
    well323,1 Bq/l20.4 Bq/l
    source14,23 Bq/l4.23 Bq/l
    stream, river10,270 Bq/l0.270 Bq/l
    developed spring126,1 Bq/l26.1 Bq/l

    Boreholes and Geofond archive reports

    Register of hydrogeological boreholes, other boreholes and geothermal boreholes. Each borehole has a report in the Geofond archive (geological profiles, pumping tests, chemical analyses of the water); the report number is in the table.

    40 boreholes in the 3 km zone, of which 12 hydrogeological and 28 other; with an archive report number 40.

    Borehole depths

    • up to 10 m31×
    • 10–30 m2×
    • 30–100 m6×
    • 100–300 m1×
    • over 300 m0×

    Nearest boreholes

    SiteTypeDepthArchive reportFrom the water
    J 15engineering-geological2.0 m88181730 m
    J 17engineering-geological8.0 m881811.1 km
    Radošovcenarrow-diameter borehole with ordinary drinking and process water134.0 m44511 119Da10.pdf1.2 km
    J 28engineering-geological2.0 m881811.2 km
    J 18engineering-geological2.0 m881811.3 km
    J 16engineering-geological2.0 m881811.4 km
    J 29engineering-geological2.0 m881811.5 km
    Radošovcenarrow-diameter borehole with ordinary drinking and process water17.0 m82689 119Da12.pdf1.5 km
    J 25engineering-geological2.0 m881811.6 km
    J 31engineering-geological7.5 m881811.7 km
    Radošovcenarrow-diameter borehole with ordinary drinking and process water57.0 m29638 119Da9.pdf1.7 km
    J 19engineering-geological2.0 m881811.7 km

    Geothermal energy and mineral waters

    Geothermal boreholes (wellhead water temperature, yield, chemical type) and sources of geothermal and mineral waters within 10 km. Data on the use and existence of a borehole come from the Geofond register.

    Sources of geothermal and mineral waters

    SourceTypeWater temperature (°C)Yield (l/s)CountNearest from water
    category a1mineral water< 15< 572.7 km
    category b1mineral water15-22< 516.8 km

    Environmental burdens, landfills and anthropogenic sediments

    Recorded environmental burdens (industrial sites, landfills, mining), the register of waste landfills and monitoring of anthropogenic sediments (industrial sludge). It is a list of places, not a measurement of water pollution.

    Waste landfills

    LandfillAreaYear establishedMonitoringFrom the water
    Koválovec ( Výmol nad dedinou) – Koválovec2 000 m²1970–920 m
    Radošovce – Hliníky – Radošovce15 000 m²1970monitored1.2 km
    Radošovce33 430 m²1997–2.2 km
    Chropov4 000 m²1970–2.8 km

    How to read these data

    • Zone and distance. The distance is measured from the line of the water to the point in the register (to the centre for areas), with an accuracy of tens of metres. Counts apply only to the zone, not to the whole catchment.
    • Percentile. For chemistry, the highest value is compared with all atlas samples in Slovakia. It is not a legal limit or a health risk assessment; the atlases are historical (published: surface waters 2015, groundwater 1996, river sediments 1999).
    • Limit of quantification. Many samples have a value at the lowest level the laboratory can determine; such results mean "below the limit". For these, the position in the distribution is an estimate.
    • Šlichy. Only samples with a find are recorded. The number of grains in a concentrate is not the gold content in grams per tonne.
    • Relation to water. A mine working, landfill or burden nearby proves nothing about the quality of the water in the stream. It serves as a prompt for attention and a starting point for further investigation.
    • Sample points. The area and raster maps of ŠGÚDŠ cannot be downloaded as points, so along the line of each fishing district the value is looked up at points roughly every 3 km. It is a sample of the line, not a continuous record; a very short section may have a single point.
    • Atlas rasters. The chemistry of water and sediments is an interpolation of measurements in a sampling network (Geochemical Atlas of Slovakia). The value at a point is a modelled estimate for the surroundings, not a measurement in the water. The percentile compares the average of this stream with all sample points on streams in Slovakia.
    • Positions and scales. The maps have different scales (1:50,000 to 1:1,000,000), so the level of detail differs between sections. A map outside its coverage means there is no area at that point, not that there is nothing there.

    Data: © ŠGÚDŠ (https://www.geology.sk), downloaded 8 Nov 2026. Details in the Methodology.

    Organizations and location

    Who manages the fishing districts and where they are

    Organizations on the watercoursewho manages the fishing districts and what the conditions are there today

    1. Senica1 fishing district · 0.4 km12VN Radošovce II.12

    More watercourses nearby

    Danube basin