Protoka River (Ros)

The channel is a river on the territory of Ukraine, a left tributary of the Ros River. It starts in the Vasilkovsky district near the village of Maryanovka. It flows through the Vasilkovsky and Belotserkovsky districts of the Kiev region.

Description
The valley of the river is trough-shaped, the width of which is up to 2 km, the depth is 20 m. The floodplain is up to 100 m. Meals precipitation. The flow is partially regulated. The river flow rate is 35.2 million m³, the runoff of water years of 75 and 95% security is 22.3 and 12 million m³, respectively.

Waterworks - 47 pcs.

Current state Currently, the river is polluted by human activities. The total β-radioactivity of the Channels is 92–95 Bq / l, which is significantly lower than that of the Ros River (151–156 Bq / l) [2].

Historical background
In written sources until the end of the XIX century it is mentioned under the name Rotok, which gave the name of the whole historical area of ​​Belaya. The ancient Russians called this river the name of Ruth. It was in the tract near Ruta in 1511 that a large detachment of Tatars was defeated by the combined Russian-Lithuanian forces. For a long time this event was considered the first victory over the Tatars, due to the fact that in the book of legends about localities of the Kiev province a typo was made and instead of “1511”, “1311” was printed [3]. This caused a number of misunderstandings - this date was even indicated in dissertations and textbooks on local history of Porosye.

Interesting facts
The river gave the name of the locality in the east of Belaya Tserkov - Rotok and the eponymous railway station