A small wastewater treatment plant with a capacity of 20,000 cubic meters has been opened in the Khan-Uul District of Ulaanbaatar. The facility, which was opened on 6 November, will serve160,000 households from the Yarmag and Nisekh apartment complexes; it was constructed by the HNC Company at a cost of MNT 33 billion from the State Budget. This will help decrease burden on the central wastewater treatment plant which is currently operating with 190,000 cubic meters.

Depending on the wind direction, the bad smell from the wastewater treatment plant is a serious problem in the Mongolian capital during summertime. To solve this, and other problems, a new wastewater treatment plant with a capacity of 250,000 cubic meters, significantly more than the old one is to be constructed in the city. Work on the new  plant is expected to begin next spring and to begin operation in 2020.