The workplace in Krnov manages water courses in the western half of the basin.
Their length exceeds 1, 500 km - of which 630 km flow through the Jeseníky Protected Landscape Area.
Significant streams in terms of the size of the basin are the Middle, Černá and Bílá Opava, Opavice, Podolský potok, Vrazedný potok, Vrchovištní potok and Javornický potok. 6 workers are employed at the workplace.