Well, the following news (posted last Friday) is not going to help the herring situation in the CT River

since the Westfield is a major tributary to the CT River.
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April 20, 2007 21:32PM
WESTFIELD - Struggling with a ruptured downtown sewer main off Meadow Street, city officials were forced to divert millions of gallons of raw sewage into the Westfield River during the past two days.
The break in the 21-inch main has made downstream boating and fishing unsafe and forced sewage into the basements of eight or nine homes in the Meadow Street area, along with the former St. Casimir Church, which is now part of the School Department, officials said.
"It's a disaster," said David K. Williams, whose basement at 151 Meadow St. flooded with 3½ feet of sewage Thursday and had to be pumped out by the Fire Department. "There is still human feces just laying there."