My grandfather wrote to family members about being inundated with uncontrollable bowel movements as his letters left N.C, he was there suffering though camp to the point his wife called him "sh*t bird and she had a daughter with in the year after, she was diagnosed with purpura.
I believe the water was tainted far before anyone tested the levels. I have the letters & the photo of his graduation class of 53'. When did the laundry mat actually establish itself??? That should be the jump off regarding its business practices.
Sincerely Aaron Bundy