Hey Kyle,
I did a burton on trent water conversion for you for Fredericton water. Calcium and Sodium are a littler higher than Moncton water.
I can post the calculations if anyone is interested.
Add the following amounts to 5GAL:
Calcium Sulfate: 24 grams
Sodium Chloride: 0.5 grams
Magnesium Sulfate: 4 grams
The amount of calcium sulfate will give you the proper sulfate ppm but will overshoot your calcium by about 30 ppm. Pretty minor though with Burton calcium being 294 ppm and the above addition would raise it to 323 ppm.