San Gabriel Valley Mosquito and Vector Control District wants to control the West-Nile virus epidemic by sending Pasadena police helicopters over Alhambra, Arcadia, Azusa, Covina, Monrovia and West Covina. They identified 94 green pools and stagnant bodies of water yesterday. Owners will be ordered to clean them up or face a $1000 fine. Dirty swimming pools are the most significant source of mosquito breeding.

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