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The aim of this paper is validation of possibility of using hydropower potential of local drops in water supply and water disposal systems of large enterprises and thermal power stations, reservoirs and other structures located on the territory of Moscow and Moscow Oblast; also there validated the possibility and feasibility of their hydropower potential use and consideration of geo-ecological factors such as geological setting and composition of soils on the territories of weirs, presence of forest vegetation, sorption characteristics and composition of soils significantly affecting the degree of protection of live streams against pollution. Therefore, they should be taken into consideration at conducting comprehensive assessment of the springs condition. Units of small HPPs may be installed at spillage of clarified water from sedimentation basins of thermal power stations, water purification facilities. Construction of small HPPs of such types should be realized within the frame of energy efficiency policy. Apart from incorporation of energy efficiency technologies they may contribute in power supply of enterprises at which they are constructed. Such stations may serve as a power supply reserve of certain consumers.

Solid-phase enzyme immunoassay, neutralization test, and the hemagglutination-inhibition test were used to study the sera from human beings (152 samples), agricultural animals (n = 77), hares (n = 3), and wild birds (n = 69), collected in 2006-2007 in the Kuban River estuary (Temryuk District, Krasnodar Territory). There were specific antibodies against viruses of West Nile (WH), tick-borne encephalitis (TBE) (Flaviviridae, Flavivirus), Sindbis (Togaviridae, Alphavirus), the antigenic complex of California, Batai (Bunyaviridae, Orthobunyavirus), Dhori (Orthomyxoviridae, Thogotovirus). The findings suggest the presence of arboviruses from 6 transmitting mosquitoes and ticks in the study area and human infection by the viruses of the antigenic complex of California (20-47%), Batai (3-15%), West Nile (3-12%), Dhori (2%). The index agricultural animals (horses, cattle) were observed to have specific antibodies to the viruses of WN (8-15%), TBE (0-2%), Sindbis (2-9%), the antigenic complex of California (27-54%). Out of the representatives of the wild fauna, virus-neutralizing antibodies to Sindbis virus were found in European hares (Lepus europaeus), California complex virus in gulls (Larus argentatus) and terns (Sterna hirundo), WN and Sindbis viruses in herons (Ardea purpurea), and WN and California complex viruses in bald-coots (Fulica atra).