Edmonton Tap Water Quality

[marcingo]

Just thought I would bring this point up and see if anyone else has noticed this. So I started my tank 2 months ago and my ammonia levels have not fallen below 0.25 until today where it is 0. Then I decided to randomly check the water I was preparing for a water change and I couldn't believe it. The tester read between 0.5 and 0.75. I've been doing freshwater for 2 years before this and always used tap water and never had a problem with it. Could this high ammonia reading be some temporary drop in city tap water? I also forgot to mention that I also checked the tap water without any declorinator or salt thinking either one may be a problem causing the ammonia reading but I still got 0.5 to 0.75. I guess the point of this post is to see if anyone else has found a similar problem with tap water or if its just my pipes.

If I should stop using the tap water what do you guys recommend should I just use bottled water?