Some digging on RI water:

• The Scituate Reservoir is the main source of water for RI, providing for 60% of the population.

• It is operated by the Providence Water Supply Board.

- They have a small security force, staffed 24/7, fencing, cameras and signage.

- They test the reservoir 100-200x a day

National Guard running drills to protect R.I. from cyberattacks(2013)

https://www.providencejournal.com/article/20130920/NEWS/309209901

Cyber Shield is a national exercise were the Gaurd runs a red vs. blue exercise.

Scituate Reservoir Tests Positive for PEDs(2015)

https://www.ecori.org/public-safety/2015/1/29/excessive-levels-of-synthetic-hormone-found-in-scituate-reservoir

PED's (4-Androstene-2,17-dione) were found in it. It only flaged once, and just above a detectable level.

7 arressted in MA, Quabbin Reservoir(2014),

https://www.necn.com/news/local/_necn__7_arrested_for_trespassing_charges_at_quabbin_reservoir_necn/163854/.

5 men and 2 women were arrested for tresspassing the Quabbin Reservoir. This reservoir supplies Boston with 40% of their water.

The men told police they are recently graduated chemical engineers, curious about the reservoir.

Security of Scituate Reservoir top priority for water board

https://turnto10.com/archive/security-of-scituate-reservoir-top-priority-for-water-board

"It would be awfully hard to threaten the water supply," Nickerson said. "You'd probably have to have a caravan of 18 wheelers

come in and drive into the reservoir before you might even have a problem."

You could easily do what Nickerson was saying, by having an accident on route 14, which goes through the reservoir.