East River mid-channel at Roosevelt Island

East River_Roosevelt Islan copy

Physical/Chemical Data

Physical, chemical and biological properties of the surface water that are measured continuously while the patrol boat is underway.

Entero Count (fecal indicator) and Rainfall

67 Samples taken

Sample Date [i] Enterococcus Count

Entero Count

Enterococcus (“Entero”) is a fecal indicating bacterium that lives in the intestines of humans and other warm-blooded animals. It is the EPA preferred indicator for sewage contamination.

Quality Rain, day of (in) Prior Day 2 Days Prior 3 Days Prior Rain 4 Days Total Rain
Sort Sort Sort Sort Sort Sort Sort Sort
05/15/2017 41 Acceptable 0.0 0.0 1.6 0.0 1.6
10/13/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/15/2016 10 Acceptable 0.0 0.1 0.0 0.3 0.4
07/12/2016 20 Acceptable 0.0 0.0 0.0 0.5 0.5
06/15/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/20/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/12/2015 <10 Acceptable 0.0 0.0 0.0 0.9 0.9
09/11/2015 74 Beach Advisory 0.0 1.6 0.0 0.0 1.6
08/12/2015 41 Acceptable 0.0 1.2 0.0 0.0 1.2
07/08/2015 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
06/11/2015 <10 Acceptable 0.0 0.0 0.0 0.1 0.1
05/12/2015 10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/13/2014 <10 Acceptable 0.0 0.0 0.3 0.0 0.3
09/07/2014 10 Acceptable 0.0 0.1 0.0 0.0 0.1
08/11/2014 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/07/2014 20 Acceptable 0.0 0.0 0.0 0.1 0.1
06/12/2014 31 Acceptable 0.0 0.0 0.0 1.6 1.6
05/12/2014 20 Acceptable 0.0 0.0 0.4 0.0 0.4
10/16/2013 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/18/2013 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2013 221 Beach Advisory 0.0 0.9 0.1 0.0 1.0
07/17/2013 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/19/2013 41 Acceptable 0.0 0.2 0.0 0.0 0.2
05/31/2013 <10 Acceptable 0.0 0.0 0.0 0.5 0.5
10/10/2012 63 Beach Advisory 0.3 0.0 0.0 0.2 0.5
09/10/2012 10 Acceptable 0.0 0.0 0.4 0.0 0.4
08/13/2012 <10 Acceptable 0.0 0.0 0.0 0.2 0.2
07/16/2012 30 Acceptable 0.0 0.3 0.0 0.0 0.3
06/11/2012 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/15/2012 10 Acceptable 0.5 0.0 0.0 0.0 0.5
10/21/2011 84 Beach Advisory 0.0 0.0 1.1 0.0 1.1
09/14/2011 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/16/2011 109 Beach Advisory 0.0 0.6 5.8 0.0 6.4
07/19/2011 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
06/27/2011 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/16/2011 181 Beach Advisory 0.2 0.9 0.0 0.0 1.1
10/12/2010 275 Beach Advisory 0.1 1.1 0.0 0.0 1.2
09/11/2010 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2010 63 Beach Advisory 0.0 0.1 0.2 0.0 0.3
07/21/2010 <10 Acceptable 0.0 0.0 0.1 0.0 0.1
06/15/2010 <10 Acceptable 0.0 0.0 0.3 0.0 0.3
05/21/2010 10 Acceptable 0.0 0.0 0.0 1.1 1.1
10/19/2009 10 Acceptable 0.0 0.3 0.0 0.1 0.4
09/14/2009 <10 Acceptable 0.0 0.0 0.0 0.8 0.8
08/20/2009 <10 Acceptable 0.0 0.0 0.6 0.0 0.6
07/28/2009 52 Acceptable 0.0 0.6 1.4 0.0 2.0
06/22/2009 <10 Acceptable 0.0 0.5 0.3 0.0 0.8
06/05/2009 <10 Acceptable 0.9 0.5 0.5 0.1 2.0
05/12/2009 10 Acceptable 0.0 0.0 0.0 0.6 0.6
10/20/2008 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/24/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/19/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/14/2008 187 Beach Advisory 0.5 0.0 0.0 0.0 0.5
07/02/2008 <10 Acceptable 0.0 0.0 0.0 0.6 0.6
06/24/2008 109 Beach Advisory 0.0 0.1 0.1 0.0 0.2
05/19/2008 <10 Acceptable 0.0 0.1 0.0 0.9 1.0
09/06/2007 1 Acceptable 0.0 0.0 0.0 0.0 0.0
08/16/2007 4 Acceptable 0.0 0.0 0.0 0.0 0.0
07/11/2007 1 Acceptable 0.0 0.0 0.0 0.0 0.0
06/18/2007 8 Acceptable 0.0 0.0 0.0 0.0 0.0
05/23/2007 4 Acceptable 0.0 0.0 0.0 0.0 0.0
04/18/2007 344 Beach Advisory 0.0 0.0 0.9 7.6 8.5
12/13/2006 30 Acceptable 0.2 0.0 0.0 0.0 0.2
11/10/2006 112 Beach Advisory 0.0 0.0 3.6 0.0 3.6
10/18/2006 135 Beach Advisory 0.0 1.1 0.0 0.0 1.1
09/26/2006 2 Acceptable 0.0 0.0 0.0 0.1 0.1

Entero Count (fecal indicator) and Rainfall Correlation

67 Samples taken

All Water Quality Parameters

67 Samples taken

Sample Date [i] Entero Count

Entero Count

Enterococcus (“Entero”) is a fecal indicating bacterium that lives in the intestines of humans and other warm-blooded animals. It is the EPA preferred indicator for sewage contamination.

Quality [i] Temp (f)

Temperature

Hudson River water temperature changes seasonally. Surface water temperature can change on small scales in the river reflecting natural and human influences.

[i] Salinity

Salinity

Estuaries like the Hudson are where freshwaters in rivers meet the sea. Salinity tells us about the relative contribution of fresh and salt water within a particular region of the estuary. 

[i] Chlorophyll

Chlorophyll

A measure of the amount of microscopic algae present in the water. High chlorophyll counts can mean high levels of the nutrients phosphorus and nitrogen, and the threat, or presence, of algae blooms.

[i] Turbidity

Turbidity

Turbidity is a measure of the amount of fine particles suspended in the water. As turbidity rises, light penetration, a key factor for aquatic plants and algae, diminishes.

[i] Oxygen

Oxygen

Oxygen concentrations in the water are closely connected to biological activities. Surface waters are typically in equilibrium with the atmosphere such that the oxygen concentration near the surface is close to fully saturated (100%).

Sort Sort Sort Sort Sort Sort Sort Sort
05/15/2017 41 Acceptable 55.5 20.2 2.0 9.1 83.6
10/13/2016 <10 Acceptable
09/14/2016 10 Acceptable 75.4 24.3 4.6 n/a 75.9
08/15/2016 10 Acceptable 77.9 24 5.2 26.2 74.6
07/12/2016 20 Acceptable 73 23.5 2.2 8.3 64.8
06/15/2016 <10 Acceptable 63.4 23 2.3 17.7 82.7
05/20/2016 <10 Acceptable 55.9 22 3.5 n/a 89.3
10/12/2015 <10 Acceptable 65.1 24.1 2 15 79
09/11/2015 74 Beach Advisory 76.5 25.5 4.4 7 63
08/12/2015 41 Acceptable 74.1 24.7 2.3 6 68
07/08/2015 <10 Acceptable 71.1 23.3 2.6 15 65
06/11/2015 <10 Acceptable 64.6 21.9 2 n/a 70
05/12/2015 10 Acceptable 55.7 23.3 5.3 15 91
10/13/2014 <10 Acceptable 65 24.4 1.6 5 75
09/07/2014 10 Acceptable 75.9 24.4 2.7 15 58
08/11/2014 <10 Acceptable 74.5 22.6 1.6 18 65
07/07/2014 20 Acceptable 71.2 22.1 1.8 8 64
06/12/2014 31 Acceptable 64 22 3.8 15 77
05/12/2014 20 Acceptable 53.9 20.7 2 15 87
10/16/2013 <10 Acceptable 65.4 25 1.3 4 80
09/18/2013 <10 Acceptable 70.4 25.5 2.9 25 69
08/14/2013 221 Beach Advisory 73.2 23.3 1.8 19 54
07/17/2013 <10 Acceptable 74.7 23.1 4.8 13 68
06/19/2013 41 Acceptable 68.1 21.5 1.9 12 73
05/31/2013 <10 Acceptable 61.8 23.1 1.4 11 73
10/10/2012 63 Beach Advisory 67.5 24.7 1.7 8 67
09/10/2012 10 Acceptable 77.6 24.7 2.7 40 53
08/13/2012 <10 Acceptable 77 33.7 0.7 7 46
07/16/2012 30 Acceptable 74.8 32.7 2 8 56
06/11/2012 <10 Acceptable 68.4 22.9 2.1 n/a 64
05/15/2012 10 Acceptable 58.7 22.3 1.6 9 78
10/21/2011 84 Beach Advisory 64.1 20.7 0.6 12 77
09/14/2011 10 Acceptable 71.5 14 1.4 31 72
08/16/2011 109 Beach Advisory 74.2 22.1 1 42 57
07/19/2011 <10 Acceptable 73.9 21.9 1.4 9 66
06/27/2011 <10 Acceptable 70.2 19.9 1.9 11 57
05/16/2011 181 Beach Advisory 55.4 19.4 4.1 61 81
10/12/2010 275 Beach Advisory 66 21.8 1.4 12 71
09/11/2010 <10 Acceptable 71.2 25.8 2.8 19 71
08/17/2010 63 Beach Advisory 76.8 26.4 1.9 8 45
07/21/2010 <10 Acceptable 76.7 25.4 1.5 6 45
06/15/2010 <10 Acceptable 65.7 23.3 0.5 17 66
05/21/2010 10 Acceptable 57 23.9 2.2 8 77
10/19/2009 10 Acceptable 57.2 25 0.9 7 80
09/14/2009 <10 Acceptable 70.9 24.7 0.9 39 65
08/20/2009 <10 Acceptable 76.7 22.1 2 21 57
07/28/2009 52 Acceptable 72.9 23.3 1.1 12 48
06/22/2009 <10 Acceptable 67 15.9 0.7 66 65
06/05/2009 <10 Acceptable n/a n/a n/a n/a n/a
05/12/2009 10 Acceptable 56.8 18.7 0.7 15 79
10/20/2008 10 Acceptable 62.4 25.3 0.9 6 67
09/24/2008 <10 Acceptable 70.4 25.2 8.8 8 92
08/19/2008 <10 Acceptable 73.4 22.4 1.2 11 65
07/14/2008 187 Beach Advisory 72.2 24.5 1.1 10 53
07/02/2008 <10 Acceptable 69.2 24 1.1 11 58
06/24/2008 109 Beach Advisory 67.8 23.6 0.8 8 56
05/19/2008 <10 Acceptable 57 21.7 0.9 10 81
09/06/2007 1 Acceptable 74.8 25.5 1.7 11 63
08/16/2007 4 Acceptable n/a n/a n/a n/a n/a
07/11/2007 1 Acceptable 69.5 25.1 1.5 27 54
06/18/2007 8 Acceptable n/a n/a n/a n/a n/a
05/23/2007 4 Acceptable 58.9 23.2 2.5 103 75
04/18/2007 344 Beach Advisory 44.9 20.3 0.1 27 96
12/13/2006 30 Acceptable 47.9 21 1.1 20 90
11/10/2006 112 Beach Advisory 55 17.5 0.8 19 86
10/18/2006 135 Beach Advisory 63.4 23.7 1 6 68
09/26/2006 2 Acceptable 68.9 22.9 0.3 n/a 76

Water Quality*

Acceptable (0–60) Beach Advisory (61+)

*Single sample thresholds;
Enterococcus count per 100mL

Prior Four Day Rainfall
(in inches)

Dry Weather (0–0.25) Wet Weather (0.25+)

Enterococcus is an EPA-approved fecal contamination indicator.

Samples taken by Riverkeeper, Lamont-Doherty Earth Observatory and CUNY Queens College staff, and processed on the Riverkeeper vessel, according to the 2014 Quality Assurance Project Plan.

Rainfall data comes from wunderground.com. Wet weather is a common trigger of fecal contamination.

What do the Numbers Mean?

Water Quality scoring is based on the 2012 Recreational Water Quality Criteria from the US Environmental Protection Agency (EPA) for safe swimming. Learn More

About this location:

Queens, NY
This site has boating, fishing, kayaking and occasional swim events.

The data displayed on these pages relates to the levels of sewage indicating microbes. Even though the levels on a single days can fall within acceptable levels for Enterococcus, these locations are not necessarily acceptable for swimming. Other water quality parameters not reported on this web site such as chemical contamination and floatables should cause users to exercise caution at this site.

Agencies Responsible:

NYCDEP: 212-639-9675 and NYSDEC Region 2: 718-482-4933

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