The Upper Tisa Valley. Preparatory proposal for Ramsay

The causes of poor water quality and organic silt deposits in the stream bed are
the sources of pollution. like the poorly treated effluent discharges and the sugar
refinery at Carei, and the untreated liquid manure from the Moftinu Mare pig farm.
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Groundwater
The aquifers in the entire catchment yield generally little water. There are no
more than six major water works drawing on groundwater, abstracting a total of 0.268
m 3 /s, of which 0.226 m 3 /s, pumped from depths between 50 and 400 m, are used for
industrial and agricultural purposes in the lowlands around Carei.
The River Someş/Szamos catchment
The River Someş/Szamos catchment is shared by Romania and Hungary. The
Romanian part of the is 15 217 km 2 large. The length of the river section in the
catchment is 345 km. The two headwater branches, the Someşul Mare and the Someşul
Mic join at Dej, downstream of which the river is called River Someş/Szamos.
The catchment enclosed by the 726 km long divide is drained by a dense stream
network, which includes some major tributaries originating in areas of higher elevation
and abundant precipitation, like the Someşul Mare, the Someşul Mic and the Lapuş.
Figure 8. Annual peak streamflows (annual data, five year moving average, linear
trend) past the Dej station on the River Someş/Szamos (1950 1994)