Connecticut River at Brunelles Marina

Brunelle's Marina is a privately owned marina with a restaurant open to the public. There is an improved boat ramp for all boat types. Boat docking and storage is available for a fee. For more information visit www.brunelles.com.

South Hadley, MA

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Site use:

Boating

Fishing

Likely condition

0% chance*

Clean for boating only

During dry weather this site was clean for boating only 0 times out of 0 measurements (0%).

0% chance*

Clean for swimming

During dry weather this site was clean for swimming and boating 0 times out of 0 measurements (0%).

0% chance*

Not clean for either

During dry weather this site was not clean for swimming or boating 0 times out of 0 measurements (0%).

* Not real-time data — even consistent past results come with a margin of uncertainty.

No data

No samples have been taken at this monitoring site during dry weather.

65% chance*

Clean for boating only

During wet weather this site was clean for boating only 33 times out of 51 measurements (65%).

29% chance*

Clean for swimming

During wet weather this site was clean for swimming and boating 14 times out of 51 measurements (29%).

6% chance*

Not clean for either

During wet weather this site was not clean for swimming or boating 4 times out of 51 measurements (6%).

* Not real-time data — even consistent past results come with a margin of uncertainty.

No data

No samples have been taken at this monitoring site during wet weather.

All water tests

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Date

Weather

Wet/Dry weather shows if there was rain in the 48 hours before the sample was taken.

Status

CFU/100ml

The number of bacterial colonies in 100 ml of water.

Clean for swimming and boating <235 cfu/100 ml

Clean for boating only 235 - 575 cfu/100 ml

Not clean for either >575 cfu/100 ml

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This site is monitored by

CRC volunteers collect samples weekly on Thursdays from June through September

Water discharge and bacteria level

Discharge, cubic feet per second

E.coli, cfu/100 ml

Discharge is the amount of water moving through a river channel, typically measured in cubic feet or meters per second. It’s closely tied to water level—more rain or snowmelt leads to higher discharge and rising river levels. These increases can stir up sediments and wash bacteria from the land into the water, often resulting in higher bacteria concentrations, especially after heavy rains.

Sites nearby

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