The subject of the contract is the performance of maintenance works on the rivers in the area of operation of the catchment board in Sokołów Podlaski.

The contracting authority divided the order into 2 lots, each lot is a separate object of the contract. The scope of maintenance works in individual parts of the contract mainly includes: mechanical mowing of lichen from the slopes and the bottom of the stream; manually removing lichen from slopes and the bottom of the watercourse along with raking; manual cutting and grubbing of bushes and undergrowth, demolition of beaver chambers.

A detailed description of the order, divided into parts, was presented in the bill of quantities and in the Technical Specification for the implementation and acceptance of maintenance works, constituting annexes to the ToR.

The subject of the contract is the maintenance of the Ciek Chwiszczej river at 3 + 200-16 + 868 km; the Sipurka River at 0 + 000-3 + 177 km; Leśna River of Rights at 20 + 410-30 + 324; the river Rów A at 0 + 000-4 + 620 km; Policzna river at 0 + 000-1 + 860 km; the Pulwa river at 0 + 000-13 + 300 km; the Ciek L river at 0 + 000-5 + 966 km.

The scope of the contract includes: mechanical removal of lichen from slopes; manual removal of lichen from slopes with raking; hand cutting and grubbing bushes and undergrowth; mechanical removal of lichen from the bottom of the watercourse; demolition of beaver sewers; manual removal of lichen from the bottom of the watercourses along with raking; mechanical removal of lichen from the bottom of the watercourse;

The detailed scope of the order is given in the ToR

The subject of the contract is the provision of services related to the maintenance of the Kamionka River at km 15 + 300-24 + 560; Mohammed rivers at 4 + 428-11 + 520; the Sarenka River at 4 + 264-10 + 560 and the Ciek C Derło River at 0 + 000-7 + 660 km.

The scope of the contract includes: mechanical removal of lichen from slopes; manual removal of lichen from slopes with raking; hand cutting and grubbing bushes and undergrowth; mechanical removal of lichen from the bottom of the watercourse; demolition of beaver sewers; manual removal of lichen from the bottom of the watercourses along with raking; mechanical removal of lichen from the bottom of the watercourse;

The detailed scope of the order is given in the ToR