Is this water safe?

I wouldn't use it personally it's at 750 ppm, you are better off using RO water or distilled, but it probably won't kill the plant. If you are going to use the water definitely leave it out for a day or two to let the chlorine come out. It's got too many dissolved solids that are going to leave salt behind and the PPm is already really high and by you adding any nutes it probably won't be good for the plant.
 
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