Overall, water quality is better than it has been in years, from the standpoint of sewage treatment plant operations.
A case in point - Stamford's recent several hundred thousand dollar government award for extremely efficient nitrogen removal.
Yes, heavy rains do bring animal waste and fretilizer runoff to Long Island Sound. We can work on the fertilizers, but the wildlife - not really.
And the reflexive response to an inch of rain or more a day is to close beaches and test. Not necessarily because of STP failures, but because we know runoff will boost bacteria for a short time.
All in all Long Island Sound cleanliness in our area has made quantum leaps.