Here are the results from the Wards Lab test of my tap water, in case anyone is curious. I live in Hillsboro Village in Nashville, TN. All results are in ppm.
Na - 7
K - 2
Ca - 30
Mg - 7
Total Hardness (as CaCO3) - 104
NO3 (as N) - 0.3
SO4 (as S) - 15 (making true SO4 - 45)
Cl - 9
CO3 - <1
HCO3 - 68
Total Alkalinity (as CaCO3) - 56
Total Phosphorous - 1.14
Fe - 0.01
Na - 7
K - 2
Ca - 30
Mg - 7
Total Hardness (as CaCO3) - 104
NO3 (as N) - 0.3
SO4 (as S) - 15 (making true SO4 - 45)
Cl - 9
CO3 - <1
HCO3 - 68
Total Alkalinity (as CaCO3) - 56
Total Phosphorous - 1.14
Fe - 0.01