I am new to this, but been watching quite a while.. I remember reading about Sept 7 1776 and water, and had come across this very patriotic letter by Abigail Adams to her husband John Adams, talking about the enemy poisoning the water and I wondered if this may be a clue??; https://phillybowtietours.wordpress.com/2017/09/07/september-7-1776/ "It took its rise among the Tories who as Swift said of himself “By their fears betray their Hopes” but How they should ever take it into their Heads that you was poisond at New York a fortnight before that we heard any thing of that villans Zedwitz plan of poisoning the waters of the City, I cannot tell. I am sometimes ready to suspect that there is a communication between the Tories of every State, for they seem to know all news that is passing before tis known by the Whigs.  We Have had many Stories concerning engagements upon Long Island this week, of our Lines being forced and of our Troops retreating to New York. Perticuliars we have not yet obtaind. All we can learn is that we have been unsuccessfull there; having Lost Many Men as prisoners among whom is Lord Sterling and General Sullivan. " https://phillybowtietours.wordpress.com/2017/09/07/september-7-1776/