Completion of the WWTP-Vidin for the treatment of waste water at population equivalent — 56 000 e.g. for the year 2041 and the following basic data at the inlet of the WWTP: a daily average water quantity of 10 928 m³/day; BOD5-3 360 kg/day; COD-6 720 kg/day: suspended substances-3 920 kg/day; total nitrogen-616 kg/day; total phosphorus-101 kg/day;Project “Completement of Waste Water Treatment Plant (WWTP) — Vidin II” includes the following activities: exercise of author’s supervision during construction; supply of the necessary materials, equipment and furniture; construction and installation works; single, complex and 72-hour tests; preparation of the execution documentation and cadastral photographs of the whole site in accordance with the law on the land register; for the introduction of the site into exponentiation with Protocol 16 and authorisation for benefit; training of staff; repair of defects in the specified warranty periods and assistance in the operation and maintenance of the WWTP within these terms;