This is a sample of pool water seen through a microscope at about 800x magnification.I was wondering if the microorganisms in the pictures are bacteria,maybe Streptococci and Bacilli.What do you think?

Is the water green? Looks more like unicellular algae to me. 

It definitely looks like a mixed population of bacteria. Dead or alive is another question. On a minor note, morphology terms should not be capitalized. The capitalized terms are used if the genus is known. For example, many streptococcal shaped bacteria are not necessarily members of the genus Streptococcus or bacilli of the genus Bacillus. Some of the organisms could be small algae or fungi.