The Quequechan Multi-Cache

This is an offset cache.   The final is at N41 40.BDA W071 08.27C
There is NO safe or legal way to reach this cache by land!!!
While I don't think it will kill you, you really don't want to be swimming in this water.  It's an urban river that has a long history of industrial mill wastes and other nasty things. They claim it's cleaner now and I've seen people fishing here.  

The Quequechan was a wide tranquil river, then I-195 was built.
 The portion west of Plymouth Avenue was routed underground through a series of box culverts, while much of the eastern section "mill pond" was filled in for the highway embankment including the start of the Quequechan River being filled in for Exit 2 on Route 24, and portions of Route 24 and 195 built directly on the Quequechan River. 

To find this cache:
Near the posted coordinates there is a four digit number.   ABCD.
Use it to fill in N41 40.BDA W071 08.27C.
Both very high and low water levels can block the route to the final.