The subject of the order is the execution of works related to the maintenance of the courses located on the premises of the Catchment Board in Warsaw.

The scope of the contract includes:

• manual shear and grubbing of medium density bushes and hindwings,

• demolition of beaver scams,

• manual mowing of lichens from slopes and the edge of watercourses,

• mechanical mowing of lichens from slopes and sides of the course,

• removal of congestion from slopes and riverbed,

• mowing lichen by hand from the bottom of the course,

• cleaning of culverts, concrete reinforcements, drainage outlets, etc., from sludge and other impurities,

• natural supervision (if required).

Not all assortments, listed above, fall within each part of the order.

Details of the object of the contract, scope and conditions of performance of the order are included in the specification of the terms of the contract (hereinafter referred to as SWZ) and the annexes

The subject of the contract is the maintenance of the waters of the Świder River in km 85+000-93+800 and the Świder Południowy River in km 0+000-15+154.

The scope of the contract includes:

- Demolition of beaver screens,

- Removal from the slopes, roadsides and river bed of windbreaks and trees cut down by beavers,

- Mechanical mowing of lichen from slopes and roadsides of the watercourse,

- Manual mowing of lichen together with the intake,

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

- Mechanical mowing of plants from the bottom of the watercourse,

- Removal of point-based silting and damaged elements of culverts

- Manual shearing and grubbing up of rare bushes and lining,

- Mowing lichens by hand from slopes and roadsides of the watercourse,

- Cleaning the area after maintenance work,

- Nature supervision, ichthyologist - naturalist.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Wilga River in km 22+552 – 33+000, km 57+612 – 65+000 and the Relief Canal River in km 0+000 – 0+903.

The scope of the contract includes:

- Mechanical mowing of lichens from river slopes,

- Manual mowing of lichens from river slopes along with raking,

- Cutting bushes,

- Mowing the bottom of the river along with raking the swath, removal and development,

- Removal of locally created silting,

- Demolition of beaver screens,

- Cutting fallen trees with a chainsaw,

- Removal of the resulting silting under the bridge with cleaning of the abutments,

- Cleaning of pipe culverts from silt and garbage,

- Natural supervision,

- Cleaning work.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Przyrytka River in km 0+000 – 7+500 and the Żelechówka River in km 6+800 – 11+432.

The scope of the contract includes:

- Mechanical mowing of lichens from river slopes,

- Manual mowing of lichens from river slopes along with raking,

- Cutting bushes,

- Mowing the bottom of the river along with raking the swath, removal and development,

- Removal of locally created silting,

- Demolition of beaver screens,

- Cutting fallen trees with a chainsaw,

- Removal of the resulting silting under the bridge with cleaning of the abutments,

- Cleaning of pipe culverts from silt and garbage,

- Natural supervision,

- Cleaning work.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Głoskówka River in km 0+000 – 2+200, the Jeziorka Canal in km 0+000 – 2+889 and the Piaseczyński Canal in km 3+180 – 8+932.

The scope of the contract includes:

- Manual mowing of lichens from river slopes and coastal belts,

- Manual mowing of plants from the bottom of the watercourse along with raking,

- Collection and export of mowed lichen,

- Manual demolition of beaver screens along with the export of the extracted material,

- Manual cutting of bushes and undergrowth,

- Removal of municipal garbage along with its disposal,

- Removal of Japanese knotweed and foil protection of the place after felling,

- natural surveillance.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Ciek Wodynie River in km 0+000-15+090 and the Świder River in km 45+800-68+000.

The scope of the contract includes:

- Demolition of beaver screens,

- Removal from the slopes, roadsides and river bed of windbreaks and trees cut down by beavers,

- Mechanical mowing of lichen from slopes and roadsides of the watercourse,

- Manual mowing of lichen together with the intake,

- Mechanical mowing of plants from the bottom of the watercourse,

- Cleaning from grasses, clumps of grasses, roots, soil and other impurities of concrete elements of step reinforcements,

- Cleaning the area after maintenance work,

- Nature supervision, ichthyologist – naturalist,

- Removal of point-based silting and damaged elements of culverts

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Antoninka River in km 0+250-13+890 and the Puznowski Canal River in km 3+200-15+286.

The scope of the contract includes:

- Demolition of beaver screens,

- Removal from the slopes, roadsides and river bed of windbreaks and trees cut down by beavers,

- Manual shearing and grubbing up of rare bushes and lining,

- Mechanical mowing of lichen from slopes and roadsides of the watercourse,

- Manual mowing of lichen together with the intake,

- Mechanical mowing of plants from the bottom of the watercourse,

- Removal of point-based siltings

- Cleaning the area after maintenance work,

- Nature supervision, ichthyologist – naturalist.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Czarna River in km 8+050-9+970, 10+090-15+360, 15+410-15+550 and 27+600-32+420 and the Czarna-Kraska Canal river in km 0+000-2+500.

The scope of the contract includes:

- Mechanical mowing of lichens from river slopes,

- Manual mowing of lichens from river slopes along with raking,

- Usuniecie zakrzaczeń ,

- Mechanical fragmentation of cut bushes,

- Mechanical mowing of lichen of plants from the day with raking, difficult conditions – lichen below the water table,

- Manual mowing of grasses and lichens from the bottom with raking and folding into mounds,

- Removal of overhangs and blockages from leaves, sticks, branches and branches,

- Removal of beaver remelting,

- Cleaning the river bottom under the piers,

- Manual cleaning of culverts,

- natural surveillance.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Osiecki Canal river in km 0+000 – 13+290 with buildings, the waters of the Wilga – Wisła Canal river in km 0+000-15+009 with buildings and the waters of the Warszawicki Canal river in km 0+000 – 4+686 with buildings.

The scope of the contract includes:

- Mechanical mowing of lichen from slopes,

- Manual mowing of lichens from the slopes of the river along with raking, folding into mounds or on a roller,

- Manual mowing of lichens from the bottom of the river along with raking, folding into mounds or on a roller,

- Manual cutting of bushes from slopes,

- Removal of beaver remelting,

- Removal of melting and blockages from leaves, sticks and branches, plants after mowing the river stopping on water structures,

- Repair of fortifications from the water side of the lower Chabashev step,

- Transverse earthworks,

- Strengthening of the river slopes with a hydrotechnical stone bedspread in fences on geotextile,

- Natural supervision,

- Cleaning of insurance at buildings.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Czarna – Cedron River in km 0+000 – 3+674 together with buildings and the waters of the Czarna River in km 0+000 – 15+369.

The scope of the contract includes:

- Mechanical mowing of lichen from slopes,

- Manual mowing of lichens from the slopes of the river along with raking, folding into mounds or on a roller,

- Manual mowing of lichens from the bottom of the river along with raking, folding into mounds or on a roller,

- Manual cutting of bushes from slopes,

- Removal of beaver remelting,

- Removal of melting and blockages from leaves, sticks and branches, plants after mowing the river stopping on water structures,

- natural surveillance.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Wilanówka River in km 9+441 - 13+597 and the Habdziński Canal in km 0+000 – 5+259.

The scope of the contract includes:

- Mechanical mowing of lichens from the slopes of the river,

- Manual mowing of lichens from the slopes of the river along with raking, folding into mounds or on a roller,

- Mechanical mowing of lichens from the side of the river along with raking,

- Manual mowing of lichens from the side of the river along with raking,

- Removal of bushes and cleaning of the watercourse bed from fallen branches and branches of trees,

- Manual mowing of lichens from the bottom of the river along with raking, folding into mounds or on a roller,

- Collection of municipal pollution in bags and their removal with disposal,

- Collection and export along with the disposal of mowed lichen from slopes, banks and the bottom of the watercourse and cut bushes,

- natural surveillance.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Wawer Canal in km 12+021 – 16+740.

The scope of the contract includes:

- Mechanical mowing of lichens from the slopes of the river,

- Manual mowing of lichens from the slopes of the river along with raking, folding into mounds or on a roller,

- Mechanical mowing of lichens from the side of the river along with raking,

- Manual mowing of lichens from the side of the river along with raking,

- removal of instincts,

- Removal of dams from the watercourse bed, including beaver dams,

- Manual mowing of lichens from the bottom of the river along with raking, folding into mounds or on a roller,

- Collection of municipal pollution in bags and their removal with disposal,

- natural surveillance.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.

The subject of the contract is the maintenance of the waters of the Okrzejka River in km 16+000 – 32+000, km 60+000 – 68+000 and the Swarzyna River in km 8+000 – 12+426.

The scope of the contract includes:

- Mechanical mowing of lichens from river slopes,

- Manual mowing of lichens from river slopes along with raking,

- Cutting bushes,

- Mowing the bottom of the river along with raking the swath, removal and development,

- Removal of locally created silting,

- Demolition of beaver screens,

- Cutting fallen trees with a chainsaw,

- Removal of the resulting silting under the bridge with cleaning of the abutments,

- Cleaning of pipe culverts from silt and garbage,

- Natural supervision,

- Cleaning work.

Details of the subject matter of the contract, scope and conditions of performance of the order are included in the SWZ and the attachments to the SWZ.