If you're just testing your source water you might as well test your nitrates.
Is that water with fish already having been in it for a while? Or is that straight from the source?
If the latter, I think your fish are going to be rather stressed in that water... before the cycle is available, that ammonia isn't going to go away. Prime detoxes ammonia for 24 hours, but you can't use TSS if you've used Prime in the last 24 hours. I believe TSS cycles involve ammonia going up in the beginning as well, though I'm not sure. Perhaps there's another water conditioner that can detox ammonia without interfering with TSS?
Or you could do a fishless cycle with TSS, using ammonia drops instead of fish. I THINK that works--I know Dr. Tim's One and Only works that way.