Gay’s Point mid-channel

Gay's Point

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

57 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
06/15/2017 2 Acceptable 0.0 0.0 0.0 0.0 0.0
05/18/2017 4 Acceptable 0.0 0.0 0.0 0.3 0.3
04/07/2017 411 Beach Advisory 0.0 0.5 0.0 0.9 1.4
10/18/2016 2 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2016 6 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2016 20 Acceptable 0.0 0.0 0.2 0.0 0.2
07/16/2016 1 Acceptable 0.0 0.1 0.1 0.0 0.2
06/18/2016 3 Acceptable 0.0 0.0 0.0 0.0 0.0
05/23/2016 <1 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2015 2 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2015 36 Acceptable 0.0 0.9 1.2 0.1 2.2
08/15/2015 3 Acceptable 0.3 0.3 0.0 0.0 0.6
07/11/2015 130 Beach Advisory 0.0 0.0 1.2 0.0 1.2
06/13/2015 4 Acceptable 0.0 1.3 0.0 0.0 1.3
05/14/2015 3 Acceptable 0.0 0.0 0.1 0.0 0.1
10/16/2014 5 Acceptable 0.3 0.1 0.0 0.0 0.4
09/10/2014 2 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2014 9 Acceptable 0.0 0.1 0.0 0.0 0.1
07/10/2014 16 Acceptable 0.0 1.7 0.4 0.3 2.4
06/15/2014 980 Beach Advisory 0.0 0.1 0.9 0.1 1.1
05/15/2014 6 Acceptable 0.0 0.1 0.0 0.0 0.1
10/21/2013 9 Acceptable 0.0 0.0 0.0 0.2 0.2
09/21/2013 8 Acceptable 0.0 0.0 0.0 0.0 0.0
08/19/2013 17 Acceptable 0.0 0.0 0.0 0.0 0.0
07/21/2013 20 Acceptable 0.0 0.0 0.0 0.0 0.0
06/24/2013 15 Acceptable 0.0 0.0 0.0 0.0 0.0
06/04/2013 345 Beach Advisory 0.0 0.0 1.1 0.1 1.2
10/15/2012 3 Acceptable 0.0 0.5 0.0 0.1 0.6
09/15/2012 9 Acceptable 0.1 0.0 0.0 0.0 0.1
08/18/2012 17 Acceptable 0.0 0.1 0.0 0.2 0.3
07/21/2012 1 Acceptable 0.0 0.0 0.0 0.2 0.2
06/16/2012 4 Acceptable 0.0 0.0 0.0 0.2 0.2
05/20/2012 19 Acceptable 0.0 0.0 0.0 0.0 0.0
10/16/2011 1733 Beach Advisory 0.0 0.1 1.1 0.3 1.5
09/19/2011 14 Acceptable 0.0 0.0 0.0 0.1 0.1
08/21/2011 6 Acceptable 0.0 0.0 0.0 0.0 0.0
07/14/2011 10 Acceptable 0.0 0.3 0.0 0.0 0.3
07/02/2011 37 Acceptable 0.0 0.0 1.0 1.1 2.1
05/19/2011 260 Beach Advisory 0.8 0.2 0.1 0.5 1.6
10/16/2010 116 Beach Advisory 0.0 1.0 0.3 0.0 1.3
09/14/2010 8 Acceptable 0.0 0.0 0.0 0.0 0.0
08/23/2010 10 Acceptable 0.1 0.4 0.0 0.1 0.6
08/21/2010 3 Acceptable 0.0 0.1 0.1 0.0 0.2
07/19/2010 5 Acceptable 0.0 0.2 0.5 0.0 0.7
06/18/2010 14 Acceptable 0.0 0.0 0.2 0.0 0.2
05/25/2010 4 Acceptable 0.0 0.0 0.0 0.0 0.0
10/23/2009 8 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2009 13 Acceptable 0.0 0.0 0.0 0.0 0.0
08/24/2009 2420 Beach Advisory 0.0 0.3 1.0 1.5 2.8
07/31/2009 1203 Beach Advisory 0.6 0.3 1.0 0.0 1.9
06/12/2009 6 Acceptable 0.3 0.4 0.0 0.5 1.2
05/16/2009 1 Acceptable 0.0 0.0 0.5 0.0 0.5
05/15/2009 1 Acceptable 0.0 0.5 0.0 0.0 0.5
10/23/2008 10 Acceptable 0.0 0.2 0.1 0.0 0.3
09/17/2008 11 Acceptable 0.0 0.0 0.0 0.3 0.3
08/09/2008 613 Beach Advisory 0.0 0.0 1.3 0.2 1.5
07/17/2008 7 Acceptable 0.0 0.0 0.0 0.1 0.1

Entero Count (fecal indicator) and Rainfall Correlation

57 Samples taken

All Water Quality Parameters

57 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
06/15/2017 2 Acceptable 70.7 0.1 2.8 13.4 99
05/18/2017 4 Acceptable 59.9 0.1 1.6 27.9 107.8
04/07/2017 411 Beach Advisory 41.6 0.1 0.3 103.2 103.8
10/18/2016 2 Acceptable
09/17/2016 6 Acceptable 74.0 0.1 4.7 n/a 87.2
08/18/2016 20 Acceptable 81.3 0.1 1.7 31.2 83.8
07/16/2016 1 Acceptable 79.6 0.1 12.1 16.2 91.2
06/18/2016 3 Acceptable 71.7 0.1 3.7 20.5 99.9
05/23/2016 <1 Acceptable 61.3 0.1 1.6 24.6 103.5
10/15/2015 2 Acceptable 60.3 0.2 16.4 24 93
09/14/2015 36 Acceptable 76.6 0.1 5.2 16 86
08/15/2015 3 Acceptable 78.3 0.1 6.5 14 101
07/11/2015 130 Beach Advisory 73.9 0.1 3.2 28 94
06/13/2015 4 Acceptable 71.4 0.1 11 21 93
05/14/2015 3 Acceptable 66.9 0.1 6.7 40 n/a
10/16/2014 5 Acceptable 63.9 0.2 7.3 20 108
09/10/2014 2 Acceptable 75.4 0.1 2.2 27 113
08/14/2014 9 Acceptable 76.1 0.1 5.6 23 97
07/10/2014 16 Acceptable 77.9 0.1 1.8 24 95
06/15/2014 980 Beach Advisory 69 0.1 0 78 104
05/15/2014 6 Acceptable 62 0.1 1.6 19 98
10/21/2013 9 Acceptable 60.6 0.1 9.3 151 95
09/21/2013 8 Acceptable 70.7 0.1 4.7 25 95
08/19/2013 17 Acceptable 74.3 0.1 1.9 108 86
07/21/2013 20 Acceptable 82.6 0.1 1 24 89
06/24/2013 15 Acceptable 72.4 0.1 1.4 18 102
06/04/2013 345 Beach Advisory 69.4 0.1 0.9 23 93
10/15/2012 3 Acceptable 58.4 0.1 2.9 47 95
09/15/2012 9 Acceptable 73.9 0.1 3.1 53 94
08/18/2012 17 Acceptable 79.8 0.2 3.3 10 93
07/21/2012 1 Acceptable 81.3 0.2 6.5 17 102
06/16/2012 4 Acceptable 72.5 0.1 1.6 18 95
05/20/2012 19 Acceptable 64.4 0.1 n/a n/a 98
10/16/2011 1733 Beach Advisory 61.6 0.1 0.5 53 97
09/19/2011 14 Acceptable 66.3 0.1 0.8 40 98
08/21/2011 6 Acceptable 77 0.1 11.9 38 104
07/14/2011 10 Acceptable 78.4 0.1 8 19 155
07/02/2011 37 Acceptable 71.8 0.1 0.9 24 n/a
05/19/2011 260 Beach Advisory n/a n/a n/a n/a n/a
10/16/2010 116 Beach Advisory 55.8 0.1 1.6 16 96
09/14/2010 8 Acceptable 71.3 0.1 16.8 27 92
08/23/2010 10 Acceptable n/a n/a n/a n/a n/a
08/21/2010 3 Acceptable 78.3 0.1 6.3 n/a 105
07/19/2010 5 Acceptable 83 0.1 9.5 16 101
06/18/2010 14 Acceptable 70.5 0.1 25.8 42 101
05/25/2010 4 Acceptable 67.2 0.1 4.2 128 109
10/23/2009 8 Acceptable 50.5 0.1 0.9 36 92
09/17/2009 13 Acceptable 69.3 0.1 31.9 70 103
08/24/2009 2420 Beach Advisory 79.4 0.1 9.4 75 88
07/31/2009 1203 Beach Advisory 75.3 0.1 5.4 30 91
06/12/2009 6 Acceptable n/a n/a n/a n/a n/a
05/16/2009 1 Acceptable 62.3 0.1 1.5 15 101
05/15/2009 1 Acceptable 61.9 n/a 1.9 11 100
10/23/2008 10 Acceptable 54.5 0.1 18.9 42 94
09/17/2008 11 Acceptable n/a n/a n/a n/a n/a
08/09/2008 613 Beach Advisory n/a n/a n/a n/a n/a
07/17/2008 7 Acceptable 82.2 0.1 n/a n/a 103

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:

Coxsackie, NY
A state park with camping, recreational boating and swimming is directly east of this sample site. It is a relatively undeveloped portion of the estuary.

Agencies Responsible:

Columbia County Dept. of Health: 518-828-3358, Greene County Dept. of Health: 518-719-3600 and NYSDEC Region 4: 518-357-2045

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