KR: Probably a little late here. Calcium Chloride (CaCl2) readily dissolves into the respective ions (Ca++ and Cl-)when it comes into contact with water. Salt toxicity is a matter of concentration. Obviously low levels of Ca++ and/or Cl- are nothing to worry about; the toxicity arises when...
We have found at several on site piles of contaminated soil (diesel) that the addition of Nitrate in warm temperatures (turning the soil over periodically) has a marked affect on the accelerated oxidation of the hydrocarbons. Now, there might be a state or local ordinance which might have...