G.Info:State
of the Environment - Georgia - Water 
Most Polluted Rivers
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River Mtkvari
-
Within Tbilisi (principal pollution comes from Tbilisi communal
waste water discharge) pollution from organic substances exceeded Maximal
Permissible Level (MPL) 1.5 times, phenols - 11 times. nitrous ammonia
- 4 times.
-
Within Rustavi (pollution comes from metallurgical, cement and "Azoti"
factories) phenols exceeded MPL 12 times, - 11 times, organic substances
- 1.5 times
-
River Mashavera - near the settlement Kazreti (polluter - Madneuli
mining kombinate) copper pollution levels exceed limits 220 times, zinc
- 65 times.
-
River Kvirila - pollution sources are industrial group of "Chiaturmanganumi"
and Zestaponi factory of ferrous compounds. Pollution index in 1992 was
4.09, class V. Average concentration of phenols exceeded limits 16 times.
-
River Tkibula - pollution comes from the waste of Tkibuli coal processing.
Pollution index in 1992 was 3.21, class IV. phenols concentration was 14
times MPL.
-
River Ogaskura - pollution comes from Kutaisi automobile factory
waste water. Pollution index was 4.2 in 1992, class V.
-
River Kubistskali - pollute by Batumi oil refinery. Average oil
concentration exceeded MPL 2.4 times, maximal - 4 times. It should be mentioned,
that compared to previous year the pollution level was 9 times less. This
is a consequence of sharp reduction in production activities.