The subject of the contract is the performance of maintenance works for flowing waters and water facilities in the area of operation of the catchment board in Sokołów Podlaski.

The contracting authority divided the order into 25 lots, each lot is a separate subject of the contract.

The scope of maintenance works in individual parts of the contract mainly includes manual and mechanical mowing of vegetation from the slopes and the bottom of the watercourses, raking mown vegetation from the slopes and the bottom of the watercourses, removal of vegetation rooted in the bottom (hacking), cutting bushes, demolition of congestion and beaver there, removal of material from congestion, desludging bottoms of watercourses.

A detailed description of the subject of the contract, the kilometer of the rivers on which maintenance works will be carried out, and the scope of works related to the implementation of individual parts of the contract is presented in the bill of quantities and the technical specification for the performance and acceptance of works in the scope of maintenance works, constituting attachments to the ToR.

The subject of the contract is the provision of services related to the upkeep of the Pełchówka river at 25 + 556-38 + 221 km; the Ciek River from Stadnik at 0 + 000-12 + 315 km; the Siennica River at 0 + 000-14 + 246 and 16 + 050-19 + 498 km; the Ciek A river at 0 + 000-1 + 182 km; the Ciek B river at 0 + 000-0 + 588; the Ciek B1 river at 0 + 000-0 + 117; the Ciek C river at 0 + 000-0 + 324 km; feeder channel Ao at 0 + 000-7 + 965 km.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual mowing of lichen from skaps and shoulders along with raking,

- manual cutting and grubbing of bushes and undergrowth with mechanical grinding,

- Mechanical removal of lichen from the bottom of the watercourse,

- manual removal of lichen from the bottom of the watercourses along with raking,

- cleaning works - collecting waste along a conserved section.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the Liwiec river at 127 + 365-137 + 776 and 139 + 166-144 + 165 and the River Mordy at 10 + 860-16 + 660.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual removal of dense hard lichen from skaps and shoulders along with raking,

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical grinding,

- Mechanical removal of lichen from the bottom of the watercourse,

- extraction of a crust of floating plants of the area water surface equal to gout

- extraction of root plants from the bottom of the watercourse,

- Demolition of beaver sewage works,

- desludging of the watercourse bottom with a layer up to 20 cm with spreading and disking.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Kostrzyń River at km 33 + 914-43 + 240 and the Witka River at 0 + 000-0 + 865 and 3 + 086-6 + 310 km.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual removal of dense hard lichen from skaps and shoulders along with raking,

- Mechanical removal of lichen from the bottom of the watercourse,

- extraction of root plants from the bottom of the watercourse,

- Demolition of beaver sewage works,

- removal of blockages from dams and funnel bridges.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Świdnica river at 0 + 000-5 + 526, 6 + 526-8 + 829 km; the Witkówka river at 0 + 000 7 + 772 km and the Witówka II river at 0 + 000-5 + 250 and 10 + 200-12 + 868 km.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual mowing of thick hard lichen from slopes and shoulders along with raking,

- Manual cutting and grubbing up of medium density bushes and undergrowth,

- Mechanical removal of lichen from the bottom of the watercourse,

- manual removal of lichen from the bottom of the watercourse

- extraction of root plants from the bottom of the watercourse,

- removal of windbreaks and trees cut by beavers,

- demolition of beaver chambers.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the Zbuczynka River at 0 + 000-4 + 300 km; 5 + 110-9 + 053; 9 + 383-24 + 800.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual removal of dense hard lichen from the slopes and shoulders of the river together with raking as well as from the slopes and crowns of the dike

- mechanical removal of lichen from the bottom of the watercourse

- extraction of root plants from the bottom of the watercourse,

- Manual cutting and grubbing up of medium density bushes and undergrowth,

- removal of windbreaks and trees cut by beavers,

- demolition of beaver chambers

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Muchawka river at 17 + 720-23 + 165, the Zdroje river at 0 + 000-0 + 560 and 4 + 574-7 + 665, and the Stara River at km 11 + 203-23 687.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual removal of dense hard lichen from skaps and shoulders along with raking,

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical fragmentation,

- Mechanical removal of lichen from the bottom of the watercourse,

- Manual removal of lichen from the bottom of the watercourse,

- extraction of root plants from the bottom of the watercourse,

- demolition of beaver chambers.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the Ciek A river at 0 + 000-16 + 682 km.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual removal of dense hard lichen from skaps and shoulders along with raking,

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical fragmentation,

- Mechanical removal of lichen from the bottom of the watercourse,

- extraction of root plants from the bottom of the watercourse,

- Manual removal of lichen from the bottom of the watercourse,

- Demolition of beaver sewage works,

- desilting the bottom of the watercourse with a layer of up to 20 cm with spreading and disking of excavated spoil.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Ciek B river at 0 + 000-7 + 945 km and the Helenka river at 0 + 000-2 + 620 km; 4 + 650-5 + 723 and 5 + 923-13 + 680.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual removal of dense hard lichen from skaps and shoulders along with raking,

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical fragmentation,

- Mechanical removal of lichen from the bottom of the watercourse,

- extraction of root plants from the bottom of the watercourse,

- Manual removal of lichen from the bottom of the watercourse,

- Demolition of beaver sewage works,

- desilting the bottom of the watercourse with a layer up to 20 cm with the placement and disking of excavated spoil,

- removal of windbreaks and trees cut by beavers.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Leśna River at 20 + 410 - 30 + 324, Kamionka at 0 + 000-9 + 550 and 15 + 300 - 24 + 560, Sarenka at 4 + 264-10 + 560 .

The scope of the contract includes:

- mechanical removal of lichen from slopes, shoulders and bottom,

- manual mowing of thick hard lichen from skap, roadsides and bottom.

Along with raking;

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical grinding,

- manual demolition of a dam made by beavers with the arrangement of material outside the riverbed at the upper edge of the escarpment,

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical grinding,

- manual demolition of a dam made by beavers with the arrangement of material outside the riverbed at the upper edge of the escarpment with the transfer of extracted material to a distance of 10m and manual removal of silt of a layer up to 40cm thick,

- removal of scrap metal and trees cut by beavers from the escarpments and the riverbed with cutting into pieces and putting off the embankment.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Krzywula River at 0 + 000-2 + 950 km, Czyżówka at 4 + 900-6 + 670 km and 8 + 270-9 + 020, Kozioł reservoir 9 ha.

The scope of the contract includes:

- mechanical removal of lichen from slopes, shoulders and bottom,

- manual removal of dense hard lichen from skap, roadsides and bottom with raking,

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical grinding,

- manual demolition of a dam made by beavers with the arrangement of material outside the riverbed at the upper edge of the escarpment,

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical grinding,

- manual demolition of a dam made by beavers with the arrangement of material outside the riverbed at the upper edge of the escarpment with the transfer of extracted material to a distance of 10m and manual removal of silt of a layer up to 40cm thick,

- removal of scrap metal and trees cut by beavers from the escarpments and the riverbed with cutting into pieces and putting off the embankment.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the Buczynka River at km 4 + 200-18 + 800; 26 + 732-39 + 710, Ciek B rivers at 0 + 000-9 + 569, Ciek C rivers

At 0 + 000-3 + 000 km, Cetynia River at 0 + 000 - 34 + 876 km, Kosówka River at 0 + 700-18 + 100 km.

The scope of the contract includes:

- mechanical removal of lichen from slopes,

- manual removal of thick hard lichen from slopes,

- mechanical removal of dense hard lichen from the bottom,

- manual removal of dense hard lichen from the bottom,

- manual demolition of a dam made by beavers with the arrangement of material outside the riverbed at the upper edge of the escarpment with the transfer of extracted material to a distance of 10m and manual removal of silt of a layer 10 cm thick.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Leśna River at 0 + 000-27 + 425 km; the Ciek River from Dziadkowice at 0 + 000-8 + 264 km; the Sielczanka River at 0 + 000-7 + 660 km

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual mowing of lichen from skaps and shoulders along with raking,

- manual cutting and grubbing of bushes and undergrowth with mechanical grinding,

- Mechanical removal of lichen from the bottom of the watercourse,

- manual removal of lichen from the bottom of the watercourses along with raking,

- cleaning works - collecting waste along a conserved section.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the Ciek B river at 0 + 000-9 + 569 km.

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual removal of lichen from the cliffs and shoulders

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Ada River at 2 + 010-4 + 090 km and the Czerwonka I River at 1 + 250-3 + 177 km.

The scope of the contract includes:

- mowing the grass with a scythe on a flat area - roadsides on both sides 0.5 m

- mechanical removal of lichen from slopes

- manual cutting of thick hard lichen from slopes together with raking

- removal (hacking) of root plants, raking mown lichen, and removal of a floating plant coat and lichen of root plants

- manual cutting and grubbing of rare bushes and undergrowth impeding the maintenance of the river together with their mechanical fragmentation and export outside the conservation area

- manual demolition of a dam made by beavers

- cleanup and accompanying works along the watercourse after maintenance works - collecting waste and other foreign materials along with taking them to the landfill

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Miedzanka River at 9 + 504-9 + 700 and 10 + 950-20 + 737 km and the Lubiesza River at 0 + 000-11 + 273 km.

The scope of the contract includes:

- mowing the grass with a scythe on a flat area - roadsides on both sides 0.5 m,

- mechanical removal of lichen from slopes,

- manual mowing of thick hard lichen from slopes with raking,

- removal (hacking) of root plants, raking mown lichen, and removal of a floating plant coat and lichen of root plants,

- manual cutting and grubbing of rare bushes and undergrowth impeding the maintenance of the river together with their mechanical fragmentation and export outside the conservation area,

- manual demolition of a dam made by beavers,

- cleanup and accompanying works along the watercourse after maintenance works - collecting waste and other foreign materials along with taking them to the landfill

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Borówka river at 0 + 000-11 + 688 km, the Kobylanka river at 1 + 670-10 + 700 km and the Osownica river at 4 + 100-6 + 900 and 9 + 540-13 + 640.

The scope of the contract includes:

- mowing the grass with a scythe on a flat area - roadsides on both sides 0.5 m,

- mechanical removal of lichen from slopes,

- manual mowing of thick hard lichen from slopes with raking,

- manual removal of dense hard lichen from the bottom of the watercourse,

- removal (hacking) of root plants, raking mown lichen, and removal of a floating plant coat and lichen of root plants,

- manual cutting and grubbing of rare bushes and undergrowth impeding the maintenance of the river together with their mechanical fragmentation and export outside the conservation area,

- cleanup and accompanying works along the watercourse after maintenance works - collecting waste and other foreign materials along with taking them to the landfill

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Brok River at 51 + 470-51 + 982 and 72 + 543-92 + 491, the Brok Mały River at 25 + 898-44 + 160, the Jasionka River (Wągroda) at km 2+ + 984-21 960.

The scope of the contract includes:

- mechanical removal of thick hard lichen from river embankments,

- mechanical removal of lichen from the bottom of the river,

- manual removal of thick hard lichen from river embankments with raking,

- manual removal of lichen from the bottom of rivers with raking,

- manual cutting and grubbing up of bushes and undergrowth,

- removals removal and cleaning works

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Zuzełka river at 2 + 047-8 + 315 km, the Ciek Pułazie Gąsiorowo river at 2 + 510-3 + 720 km, the Pukawka river at 6 + 213-28 + 215 km.

The scope of the contract includes:

- mechanical removal of thick hard lichen from river embankments,

- mechanical removal of lichen from the bottom of the river,

- manual removal of thick hard lichen from river embankments with raking,

- manual removal of lichen from the bottom of the river with raking,

- manual cutting and grubbing up of bushes and undergrowth,

- removals removal and cleaning works.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Mień river at 0 + 000-25 + 500 km; Doppelalnik B channel at 0 + 000-11 + 660 km; Amplifier channel at 0 + 000-4 + 230 km

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual mowing of lichen from skaps and shoulders along with raking,

- manual cutting and grubbing of bushes and undergrowth with mechanical grinding,

- Mechanical removal of lichen from the bottom of the watercourse,

- manual removal of lichen from the bottom of the watercourses along with raking,

- cleaning works - collecting waste along a conserved section.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the channel Culinary Guide C1 at km 0 + 000-5 + 120; Channel C-guide at 0 + 000-8 + 900 km; Dopplernik channel D at 0 + 000-4 + 285 km; EG guide channel at 0 + 000-7 + 100 km; guide channel G from 0 + 000-5 + 268; Doppelalnik E channel in km from 0 + 000-6 + 536

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual mowing of lichen from skaps and shoulders along with raking,

- manual cutting and grubbing of bushes and undergrowth with mechanical grinding,

- Mechanical removal of lichen from the bottom of the watercourse,

- manual removal of lichen from the bottom of the watercourses along with raking,

- cleaning works - collecting waste along a conserved section.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the Bronka River at 0 + 000-21 + 964 km; the Ciek River from Grabowiec at 0 + 000-10 + 700 km; Brzezinka River 0 + 000-10 + 100

The scope of the contract includes:

- mechanical removal of lichen from slopes and shoulders,

- manual mowing of lichen from skaps and shoulders along with raking,

- manual cutting and grubbing of bushes and undergrowth with mechanical grinding,

- Mechanical removal of lichen from the bottom of the watercourse,

- manual removal of lichen from the bottom of the watercourses along with raking,

- cleaning works - collecting waste along a conserved section.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Czapelka river at 5 + 970-14 + 154, Kałuża river at 8 + 400-12 + 000 - removal of beaver sewage and the Kołodziejka river at 0 + 901-1 + 951 km (regulated section ); 1 + 951-15 + 363 (unregulated section); 15 + 363-20 + 160 (section completed).

The scope of the contract includes:

- mechanical removal of lichen from slopes and waterways,

- manual removal of lichen from slopes and shoulders with rakes,

- manual removal of lichen from the bottom of the watercourses along with raking

- manual cutting and grubbing up of medium density of bushes and undergrowth along with mechanical comminution,

- manual demolition there made by beavers,

- manual transfer of material extracted from there,

- manual removal of point silt from streams,

- cleaning and accompanying works along the watercourse.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of services related to the maintenance of the Silna River at 0 + 000-18 + 003 (regulated section) and 18 + 003-21 + 320 (unregulated section), Szysia River at 0 + 000-15 + 800 km.

The scope of the contract includes:

- mechanical removal of lichen from slopes and waterways,

- manual removal of lichen from slopes and shoulders with rakes,

- manual removal of lichen from the bottom of the watercourses along with raking,

- manual shearing and grubbing up medium density of bushes and undergrowth with mechanical grinding,

- manual demolition there made by beavers,

- manual transfer of material extracted from there,

- manual removal of point silt from streams,

- cleaning and accompanying works along the watercourse.

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the Tuchełka River at 0 + 000-0 + 800, 1 + 800-12 + 955, 17 + 000-22 + 635 and the Struga River at 0 + 000-1 + 423, 2+ 423-7 + 035, 9 + 645-14 + 790.

The scope of the contract includes:

- mechanical removal of lichen from slopes

- manual mowing of thick hard lichen from slopes with raking,

- mechanical removal of dense hard lichen from the bottom

- manual removal of dense hard lichen from the bottom with raking,

- removal (hacking) of root plants as well as removal of floating plant skin and lichen plants rooted on the surface

- disking several times sodding clumps from hacking

- Manual cutting and grubbing up of medium density bushes and undergrowth,

- manual demolition there made by beavers

- cleaning and accompanying works along the watercourse

The detailed scope of the order is provided in the ToR

The subject of the contract is the provision of a service related to the maintenance of the Bojewka river at 1 + 218-10 + 161, 10 + 280-21 + 600 and the Dzięciołek river at 0 + 000-18 + 272.

The scope of the contract includes:

- mechanical removal of lichen from slopes

- manual mowing of thick hard lichen from slopes with raking,

- mechanical removal of dense hard lichen from the bottom

- manual removal of dense hard lichen from the bottom with raking,

- removal (hacking) of root plants as well as removal of floating plant skin and lichen plants rooted on the surface

- disking several times sodding clumps from hacking

- Manual cutting and grubbing up of medium density bushes and undergrowth,

- manual demolition there made by beavers

- cleaning and accompanying works along the watercourse.

The detailed scope of the order is provided in the ToR