Chockful, by the looks of your water report your max chlorine residual is 2.5 ppm, which probably peaks during spring run off, and/or after heavy rain storms. Otherwise you are probably the same as I am most of the year, which is close to 2 ppm.
I still use the same formula as I have since I began using Safe several years ago.
Chlorine: use 5 g (1 tsp.*) to each 1625 L (450 gallons*) of tap water (removes 4 ppm).
Chloramine: use 5 g (1 tsp.*) to each 1250 L (300 gallons*) of tap water (removes 4 ppm).
Ammonia: use 5 g (1 tsp.*) to each 400 L (100 gallons*) of tap water (removes 4 ppm). Do not overdose!
If you have 2 ppm chloramine, like I do, then simply divide by two. So 1/2 teaspoon of Safe will treat 300 gallons. 1/4 teaspoon will treat 150 gallons, etc. Kitchen measuring spoons from the $1 store work well.
Hello; OK so your method is so much simpler and time tested by your own personal use over years. Why would anyone try my convoluted and untested method? I certainly will not.
A question. Do you use a leveled measuring spoon? By that I mean do you use a straight edge to flatten the spoonful or do you let the SAFE mound up a bit?