Part 1. Removal of beaver dams and natural blockages from riverbeds and watercourses in the Łosice, Siedlce, Sokołów Podlaski and Węgrów Natural Parks.

The works will be carried out on the following watercourses: Ciek spod Narojk river, Zanioski river, Czapelka river, Kałuża river, Kołodziejka river, Litewnik river, Myśla river, Silna river, Szysia river, Toczna river, Turna river, Ciek A river, Ciek B river, Dopływ w Kotuniu river, Helenka river, Kanał Mordy river, Kanał Tarkowski river, Kostrzyń river, Liwiec river, Mucha river, Muchawka river, Myrcha river, Skórczyk river, Sosenka river, Stara Rzeka river, Stary Kostrzyń river, Śliza river, Śmierdziucha river, Świdnica river, Witka river, Witkówka river, Witówka I river, Witówka II river, Zbuczynka river, Zdroje river, Żeliszewka river, Buczynka river, Cetynia river, Ciek B river, Ciek C river, Kociołek stream, Kosówka river, Ada river, Borówka river, Czerwonka II river, Czerwonka river, Kobylanka river, Lubiesza river, Miedzanka river, Osownica river, Struga river. The scope of work for the task mainly includes: • dismantling of beaver dams, • removal of debris and trees felled by beavers. Additionally, as part of the task execution, the Contractor is responsible for ensuring: • environmental supervision over the dismantling of beaver dams in accordance with the conditions specified in the decisions of the Regional Director for Environmental Protection. The purpose of the procedure is to conclude a framework agreement between the Contracting Authority and a maximum of 10 (ten) Contractors, in order to establish the terms of orders that may be awarded within 48 months from the conclusion of the agreement.