Texas First Time Pool Owner, New Pool, Tap and Pool Water Test Results

I am a first time pool owner and we just filled our pool and spa last Friday (based on our water meter, the actual capacity is 12570 gallons). Here is the test results of my tap water (I have purchased a TF-100 test kit):
FC 1.5
CC 0
TA 460
CH 125
pH 7.8
CI 0.5
Br 1

The builder added chlorine tablets to the skimmers and also 2 gallons of Muriatic Acid to the pool water yesterday...

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