The Upper Farmington River is designated as Wild & Scenic. Sampling is done by the FRWA and taken to the MCD (Metropolitan District Commission) Lab at the Water Treatment Facility in Bloomfield for analysis.

Postings of the E.coli levels will let you know more about the status of the river. The numbers in the chart below indicate a sample. Remember a sample is just that, a sample. At the end of the year the FRWA can calculate a geometric mean. Right now you can see how the numbers change depending on factors such as heavy rain increasing pollutant runoff, etc. Click here to see FRWA’s Water Quality Map and for photos of the sites.

E. coli is not considered safe in drinking water at any levels; however the current standards for recreational use levels of E.coli are posted by the CT DEEP as follows. There are no “designated swimming” areas in the Lower Farmington River. Use this as a guide for understanding the numbers in the chart below.

RECREATIONGEOMETRIC MEANSINGLE SAMPLE MAXIMUM
Designated Swimmingless than 126/100ml235/100ml
Non-designated Swimmingless than 126/100ml410/100ml
All Other Recreational Usesless than 126/100ml576/100ml

NORFOLK

SITE IDSTREAM NAMECOLLECTION DATEE.COLI COLONIES/100 ML
MR-1Mad River6/28/202170
MR-1Mad River7/19/202198
MR-1Mad River8/2/202150
MR-1Mad River8/16/20218
MR-1Mad River8/30/202170

WINCHESTER

SITE IDSTREAM NAMECOLLECTION DATEE.COLI COLONIES/100 ML
MR-2Mad River6/28/202130
MR-2Mad River7/19/2021199
MR-2Mad River8/2/202161
MR-2Mad River8/16/202152
MR-2Mad River8/30/2021173
MR-3Mad River6/28/20219
MR-3Mad River7/19/2021114
MR-3Mad River8/2/202125
MR-3Mad River8/16/202126
MR-3Mad River8/30/202184
MR-4Mad River6/28/202199
MR-4Mad River7/19/2021155
MR-4Mad River8/2/202160
MR-4Mad River8/16/202178
MR-4Mad River8/30/202193
SR-2Still River6/28/2021236
SR-2Still River7/19/2021344
SR-2Still River8/2/2021102
SR-2Still River8/16/2021185
SR-2Still River8/30/2021105
SR-3Still River6/28/2021210
SR-3Still River7/19/2021270
SR-3Still River8/2/202187
SR-3Still River8/16/2021112
SR-3Still River8/30/202175
SR-4Still River6/28/2021214
SR-4Still River7/19/2021147
SR-4Still River8/2/2021157
SR-4Still River8/16/2021358
SR-4Still River8/30/2021109

TORRINGTON

SITE IDSTREAM NAMECOLLECTION DATEE.COLI COLONIES/100 ML
SR-1Still River6/28/202154
SR-1Still River7/19/202191
SR-1Still River8/2/202171
SR-1Still River8/16/202131
SR-1Still River8/30/202153

BARKHAMSTED

SITE IDSTREAM NAMECOLLECTION DATEE.COLI COLONIES/100 ML
FR-1West Branch Farmington River6/28/20213
FR-1West Branch Farmington River7/19/2021101
FR-1West Branch Farmington River8/2/202110
FR-1West Branch Farmington River8/16/202116
FR-1West Branch Farmington River8/30/202119
FR-2West Branch Farmington River6/28/202118
FR-2West Branch Farmington River7/19/2021158
FR-2West Branch Farmington River8/2/202125
FR-2West Branch Farmington River8/16/202124
FR-2West Branch Farmington River8/30/202191
MB-1Morgan Brook6/28/2021106
MB-1Morgan Brook7/19/2021125
MB-1Morgan Brook8/2/202123
MB-1Morgan Brook8/16/202167
MB-1Morgan Brook8/30/2021387
MB-2Morgan Brook6/28/202191
MB-2Morgan Brook7/19/2021423
MB-2Morgan Brook8/2/202178
MB-2Morgan Brook8/16/202141
MB-2Morgan Brook8/30/202181
MB-3Morgan Brook6/28/202121
MB-3Morgan Brook7/19/202168
MB-3Morgan Brook8/2/202128
MB-3Morgan Brook8/16/2021166
MB-3Morgan Brook8/30/202139

NEW HARTFORD

SITE IDSTREAM NAMECOLLECTION DATEE.COLI COLONIES/100 ML
FR-3West Branch Farmington River6/28/202149
FR-3West Branch Farmington River7/19/2021187
FR-3West Branch Farmington River8/2/202136
FR-3West Branch Farmington River8/16/202134
FR-3West Branch Farmington River8/30/202132
FR-4Farmington River6/28/202160
FR-4Farmington River7/19/2021198
FR-4Farmington River8/2/202140
FR-4Farmington River8/16/202136
FR-4Farmington River8/30/202183