Good thing they weren't terrorists putting poison into the water. I thought water supplies were supposed to be protected.
No brainer, isn't it?
Do the math. 1.3 million gal tank. If they put in 1.5 gals of lets say poison, it would still only be 1 part per million.
By weight we are talking about 10,400,000 lbs. It would require a 10 pound sack of contaminant to equal 1 part per million.
Remember also that water is leaving and entering the tank at the same time further diluting the contaminant. It really is more difficult than one would think to effectively poison a large water supply.
That does not mean, These idiots should be taken lightly.
It does mean, however, that we should keep these "scares" in perspective.