River Advocates of South Central Connecticut water testing results - 10/27/21

River Advocates of SOUTH CENTRAL CONNECTICUT

Bacteria Testing Sites Sites sampled by River Advocates in Sept. 2021 to determine impairment using indicator bacteria along West, Mill, and lower Quinnipiac Rivers

West Mill Quinnipiac

River Advocates of SOUTH CENTRAL CONNECTICUT

Dry Day Bacteria Testing Sites Sites sampled on 9/8/21

Bacteria Limits for Recreational Uses E. coli (freshwater indicator of sewage or animal waste contamination) Drinking water: <1 cfu (colony forming unit)/100 ml Designated swimming area: <235 cfu/100 ml Non-designated swimming area: <410 cfu All other recreation except swimming: <576 cfu <1

*

>2,419.6

Enterococcus (brackish water indicator of sewage or animal waste contamination) Swimming: <104 cfu <1

>4,840

*

* *

*

* Designated Swimming Non-designated swimming Recreation except swimming Failed

River Advocates of SOUTH CENTRAL CONNECTICUT

Wet Day Bacteria Testing Sites Sites sampled 9/24/21 after >1 inch rainfall

Bacteria Limits for Recreational Uses E. coli (freshwater indicator of sewage or animal waste contamination) Drinking water: <1 cfu (colony forming unit)/100 ml Designated swimming area: <235 cfu/100 ml Non-designated swimming area: <410 cfu All other recreation except swimming: <576 cfu <1

*

>2,419.6

Enterococcus (brackish water indicator of sewage or animal waste contamination) Swimming: <104 cfu <1

>4,840

*

* *

*

* Designated Swimming Non-designated swimming Recreation except swimming Failed

River Advocates of SOUTH CENTRAL CONNECTICUT

Dry Day Bacteria Testing Sites Sites sampled on 9/8/21

Bacteria Limits for Recreational Uses E. coli (freshwater indicator of sewage or animal waste contamination) Drinking water: <1 cfu (colony forming unit)/100 ml Designated swimming area: <235 cfu/100 ml Non-designated swimming area: <410 cfu All other recreation except swimming: <576 cfu <1

*

>2,419.6

Enterococcus (brackish water indicator of sewage or animal waste contamination) Swimming: <104 cfu <1

>4,840

Designated Swimming Non-designated swimming Recreation except swimming Failed

West River sites

River Advocates of SOUTH CENTRAL CONNECTICUT

Wet Day Bacteria Testing Sites Sites sampled 9/24/21 after >1 inch rainfall

Bacteria Limits for Recreational Uses E. coli (freshwater indicator of sewage or animal waste contamination) Drinking water: <1 cfu (colony forming unit)/100 ml Designated swimming area: <235 cfu/100 ml Non-designated swimming area: <410 cfu All other recreation except swimming: <576 cfu <1

*

>2,419.6

Enterococcus (brackish water indicator of sewage or animal waste contamination) Swimming: <104 cfu <1

>4,840

* *

Designated Swimming Non-designated swimming Recreation except swimming Failed

West River sites

River Advocates of SOUTH CENTRAL CONNECTICUT

Dry Day Bacteria Testing Sites Sites sampled on 9/8/21

Bacteria Limits for Recreational Uses E. coli (freshwater indicator of sewage or animal waste contamination) Drinking water: <1 cfu (colony forming unit)/100 ml Designated swimming area: <235 cfu/100 ml Non-designated swimming area: <410 cfu All other recreation except swimming: <576 cfu <1

*

>2,419.6

Enterococcus (brackish water indicator of sewage or animal waste contamination) Swimming: <104 cfu <1

>4,840

* Designated Swimming Non-designated swimming Recreation except swimming Failed

Mill River sites

River Advocates of SOUTH CENTRAL CONNECTICUT

Wet Day Bacteria Testing Sites Sites sampled 9/24/21 after >1 inch rainfall

Bacteria Limits for Recreational Uses E. coli (freshwater indicator of sewage or animal waste contamination) Drinking water: <1 cfu (colony forming unit)/100 ml Designated swimming area: <235 cfu/100 ml Non-designated swimming area: <410 cfu All other recreation except swimming: <576 cfu <1

*

>2,419.6

Enterococcus (brackish water indicator of sewage or animal waste contamination) Swimming: <104 cfu <1

>4,840

* Designated Swimming Non-designated swimming Recreation except swimming Failed

Mill River sites

River Advocates of SOUTH CENTRAL CONNECTICUT

Dry Day Bacteria Testing Sites Sites sampled on 9/8/21

Bacteria Limits for Recreational Uses E. coli (freshwater indicator of sewage or animal waste contamination) Drinking water: <1 cfu (colony forming unit)/100 ml Designated swimming area: <235 cfu/100 ml Non-designated swimming area: <410 cfu All other recreation except swimming: <576 cfu <1

*

>2,419.6

Enterococcus (brackish water indicator of sewage or animal waste contamination) Swimming: <104 cfu <1

>4,840

*

* Designated Swimming Non-designated swimming Recreation except swimming Failed

Lower Quinnipiac sites

River Advocates of SOUTH CENTRAL CONNECTICUT

Wet Day Bacteria Testing Sites Sites sampled 9/24/21 after >1 inch rainfall

Bacteria Limits for Recreational Uses E. coli (freshwater indicator of sewage or animal waste contamination) Drinking water: <1 cfu (colony forming unit)/100 ml Designated swimming area: <235 cfu/100 ml Non-designated swimming area: <410 cfu All other recreation except swimming: <576 cfu <1

*

>2,419.6

Enterococcus (brackish water indicator of sewage or animal waste contamination) Swimming: <104 cfu <1

>4,840

*

* Designated Swimming Non-designated swimming Recreation except swimming Failed

Lower Quinnipiac sites