You can test your own soil! Take two separate cups and add your soil sample to each. In one add vinegar and the other add some water, stir and add baking soda. If nothing at all happens your soil is some what PH balanced.
Test your soil pH at home with ingredients from your kitchen Distilled Water (because it has a neutral pH. Use can use regular water, but it could affect the outcome) White vinegar (an acid) Baking soda (a base or alkaline) A bowl and spoon