This week, New Hampshire Public Radio is looking at water in the Granite State.
NHPR's Jon Greenberg has been focusing on the Merrimack River.
Yesterday Jon told us how investors in the mills in Lowell and Manchester gained control over the waters of the Merrimack.
That control grew to include the legal right to dump their waste.
The 1972 Clean Water Act helped restore the river.
In our second installment, Jon looks at the legacy of that federal legislation and the people who are trying to take the river to the next level.
