Water Quality
Water Quality > Hudson River Estuary Data > Ulster County & Dutchess County Sites > Norrie Point Yacht Basin

Norrie Point Yacht Basin

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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

72 Samples taken

Sample Date [i] Enterococcus Count
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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
10/10/2019 13 Acceptable 0.0 0.1 0.1 0.3 0.5
09/12/2019 373 Beach Advisory 0.0 0.0 0.0 0.0 0.1
08/08/2019 365 Beach Advisory 0.0 0.0 0.1 0.0 0.1
07/11/2019 35 Acceptable 0.0 0.0 0.0 0.0 0.0
06/07/2019 19 Acceptable 0.0 0.0 0.0 0.0 0.0
05/10/2019 2 Acceptable 0.0 0.0 0.0 0.0 0.0
10/12/2018 >2420 Beach Advisory 0.0 0.3 0.0 0.0 0.3
09/12/2018 162 Beach Advisory 0.0 0.0 0.1 0.0 0.1
08/16/2018 82 Beach Advisory 0.0 0.0 0.1 0.2 0.3
07/19/2018 4 Acceptable 0.0 0.0 1.1 0.0 1.1
06/15/2018 594 Beach Advisory 0.0 0.0 0.1 0.0 0.1
05/08/2018 2 Acceptable 0.0 0.0 0.1 0.0 0.1
10/18/2017 7 Acceptable 0.0 0.0 0.0 0.0 0.0
09/13/2017 32 Acceptable 0.0 0.0 0.0 0.0 0.0
08/16/2017 51 Acceptable 0.0 0.1 0.0 0.0 0.1
07/12/2017 12 Acceptable 0.0 0.2 0.0 0.0 0.2
06/14/2017 141 Beach Advisory 0.0 0.4 0.0 0.0 0.4
05/17/2017 2 Acceptable 0.0 0.0 0.0 0.1 0.1
10/17/2016 4 Acceptable 0.0 0.0 0.0 0.0 0.0
09/16/2016 29 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2016 117 Beach Advisory 0.1 0.1 0.0 0.1 0.3
07/15/2016 35 Acceptable 0.0 0.0 0.0 0.0 0.0
06/17/2016 26 Acceptable 0.0 0.0 0.0 0.0 0.0
05/22/2016 3 Acceptable 0.0 0.0 0.0 0.0 0.0
10/14/2015 23 Acceptable 0.0 0.0 0.0 0.0 0.0
09/13/2015 613 Beach Advisory 0.1 0.6 0.1 0.9 1.7
08/14/2015 6 Acceptable 0.0 0.0 0.0 0.9 0.9
07/10/2015 24 Acceptable 0.0 0.1 0.0 0.1 0.2
06/12/2015 54 Acceptable 0.0 0.0 0.0 0.3 0.3
05/13/2015 3 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2014 5 Acceptable 0.0 0.0 0.0 0.0 0.0
09/09/2014 548 Beach Advisory 0.0 0.0 0.0 0.1 0.1
08/13/2014 20 Acceptable 0.0 0.0 0.0 0.0 0.0
07/09/2014 21 Acceptable 0.0 0.1 0.2 0.0 0.3
06/14/2014 299 Beach Advisory 0.0 0.1 0.0 0.1 0.2
05/14/2014 6 Acceptable 0.0 0.0 0.0 0.0 0.0
10/19/2013 5 Acceptable 0.0 0.0 0.0 0.0 0.0
09/20/2013 29 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2013 9 Acceptable 0.0 0.0 0.0 0.0 0.0
07/20/2013 51 Acceptable 0.0 0.0 0.1 0.0 0.1
06/22/2013 69 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/02/2013 11 Acceptable 0.0 0.0 0.0 0.0 0.0
10/14/2012 4 Acceptable 0.0 0.0 0.0 0.0 0.0
09/13/2012 17 Acceptable 0.0 0.0 0.0 0.0 0.0
08/16/2012 13 Acceptable 0.0 0.3 0.1 0.0 0.4
07/20/2012 33 Acceptable 0.4 0.0 0.2 0.0 0.6
06/14/2012 23 Acceptable 0.0 0.2 0.3 0.0 0.5
05/18/2012 28 Acceptable 0.0 0.0 0.0 0.3 0.3
10/18/2011 132 Beach Advisory 0.0 0.0 0.1 0.0 0.1
09/17/2011 11 Acceptable 0.0 0.0 0.1 0.0 0.1
08/19/2011 35 Acceptable 0.0 0.1 0.0 0.1 0.2
07/16/2011 1 Acceptable 0.0 0.0 0.0 0.0 0.0
06/30/2011 36 Acceptable 0.0 0.5 0.0 0.0 0.5
05/18/2011 >2420 Beach Advisory 0.9 0.8 0.1 0.3 2.1
10/15/2010 345 Beach Advisory 0.4 0.8 0.0 0.3 1.5
09/13/2010 47 Acceptable 0.0 0.0 0.0 0.0 0.0
08/20/2010 20 Acceptable 0.0 0.0 0.0 0.0 0.0
07/20/2010 14 Acceptable 0.0 0.0 0.0 0.0 0.0
06/17/2010 32 Acceptable 0.0 0.0 0.0 0.0 0.0
05/24/2010 9 Acceptable 0.0 0.0 0.0 0.0 0.0
10/22/2009 2 Acceptable 0.0 0.0 0.0 0.0 0.0
09/16/2009 3 Acceptable 0.0 0.0 0.0 0.0 0.0
08/23/2009 921 Beach Advisory 0.0 0.3 0.3 0.0 0.6
07/30/2009 122 Beach Advisory 0.0 0.3 0.0 0.2 0.5
06/10/2009 26 Acceptable 0.0 0.9 0.0 0.0 0.9
05/14/2009 6 Acceptable 0.1 0.0 0.0 0.0 0.1
10/22/2008 6 Acceptable 0.0 0.0 0.0 0.0 0.0
09/15/2008 3 Acceptable 0.0 0.2 0.1 0.4 0.7
08/07/2008 25 Acceptable 0.0 0.3 0.0 0.0 0.3
07/16/2008 3 Acceptable 0.0 0.0 0.6 0.0 0.6
06/17/2008 119 Beach Advisory 0.0 0.2 0.0 0.1 0.3
05/21/2008 7 Acceptable 0.0 0.0 0.0 0.1 0.1

Entero Count (fecal indicator) and Rainfall Correlation

72 Samples taken

All Water Quality Parameters

72 Samples taken

Sample Date [i] Entero Count
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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)
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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
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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
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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
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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
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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
10/10/2019 13 Acceptable 63.7 0.1 2.9 1.9 87.2
09/12/2019 373 Beach Advisory 73.2 0.2 4.4 1.7 82.5
08/08/2019 365 Beach Advisory 80.0 0.1 5.8 5.3 85.1
07/11/2019 35 Acceptable 79.4 0.1 6.4 8.4 97.9
06/07/2019 19 Acceptable 68.4 0.1 4.7 10.1 97.2
05/10/2019 2 Acceptable 53.8 0.1 2.3 6.8 98.8
10/12/2018 >2420 Beach Advisory 64.5 0.1 3.6 14 84.1
09/12/2018 162 Beach Advisory 73.3 0.1 4.3 4.6 81.7
08/16/2018 82 Beach Advisory 77.6 0.1 3 4.9 74.1
07/19/2018 4 Acceptable 79.3 0.1 2.4 6.6 83
06/15/2018 594 Beach Advisory 69.8 0.1 3.1 5.5 87.2
05/08/2018 2 Acceptable 54.8 0.1 2.7 8.3 101.2
10/18/2017 7 Acceptable 64.8 0.1 2.3 5 83
09/13/2017 32 Acceptable 69.5 0.1 5.5 6 87
08/16/2017 51 Acceptable 76.1 0.1 7 7 97
07/12/2017 12 Acceptable 76.2 0.1 3.4 18 78
06/14/2017 141 Beach Advisory 67.4 0.1 6 9 96
05/17/2017 2 Acceptable 56.5 0.1 2.8 12 99
10/17/2016 4 Acceptable 63 0.1 4.6 27 90
09/16/2016 29 Acceptable 72.9 0.1 3.2 n/a 79
08/17/2016 117 Beach Advisory 80.7 0.1 3.2 17 82
07/15/2016 35 Acceptable 77.9 0.1 5.3 5 80
06/17/2016 26 Acceptable 72 0.1 3.7 21 90
05/22/2016 3 Acceptable 60.5 0.1 2.8 21 102
10/14/2015 23 Acceptable 61.5 0.1 4.7 22 83
09/13/2015 613 Beach Advisory 77.1 0.1 4.2 8 84
08/14/2015 6 Acceptable 76.6 0.1 4.2 3 87
07/10/2015 24 Acceptable 73.3 0.1 2.8 11 79
06/12/2015 54 Acceptable 75.6 0.2 3 n/a 110
05/13/2015 3 Acceptable 63.2 0.1 3.8 28 111
10/15/2014 5 Acceptable 64.8 0.1 3.2 20 90
09/09/2014 548 Beach Advisory 76.2 0.1 3.7 14 90
08/13/2014 20 Acceptable 78.2 0.1 2.5 16 86
07/09/2014 21 Acceptable 78.6 0.1 3 21 96
06/14/2014 299 Beach Advisory 72.3 0.1 4.3 20 103
05/14/2014 6 Acceptable 62.6 0.1 5 18 111
10/19/2013 5 Acceptable 64 0.1 3.1 29 97
09/20/2013 29 Acceptable 72.7 0.1 4.6 n/a 96
08/18/2013 9 Acceptable 74.9 0.1 2.7 20 82
07/20/2013 51 Acceptable 81.9 0.1 2.8 34 72
06/22/2013 69 Beach Advisory 72.1 0.1 2.7 75 101
06/02/2013 11 Acceptable 68.6 0.1 8.2 37 108
10/14/2012 4 Acceptable 61.1 0.1 2.3 26 87
09/13/2012 17 Acceptable 77.5 0.1 4.6 80 103
08/16/2012 13 Acceptable 83.1 0.2 1.8 9 104
07/20/2012 33 Acceptable 80.1 0.1 2.2 16 84
06/14/2012 23 Acceptable 74.4 0.2 2 19 97
05/18/2012 28 Acceptable 67.3 0.1 3.1 45 97
10/18/2011 132 Beach Advisory 59.5 0.1 0.5 85 90
09/17/2011 11 Acceptable 68.3 0.1 1.3 145 86
08/19/2011 35 Acceptable 78.4 0.1 4.7 50 101
07/16/2011 1 Acceptable 81.2 0.1 3.5 12 n/a
06/30/2011 36 Acceptable 74.5 0.1 3.8 17 93
05/18/2011 >2420 Beach Advisory n/a n/a n/a n/a n/a
10/15/2010 345 Beach Advisory 57.8 0.1 3 24 84
09/13/2010 47 Acceptable 73.6 0.1 7 18 89
08/20/2010 20 Acceptable 79.1 0.1 7.4 9 89
07/20/2010 14 Acceptable 81.4 0.1 3.1 6 78
06/17/2010 32 Acceptable 73 0.1 7.2 16 89
05/24/2010 9 Acceptable 64.7 0.1 4 14 95
10/22/2009 2 Acceptable 54.7 0.1 1.2 31 93
09/16/2009 3 Acceptable 71.1 0.1 4 11 99
08/23/2009 921 Beach Advisory 79.8 0.1 4.1 17 94
07/30/2009 122 Beach Advisory 79.3 0.1 4.7 20 113
06/10/2009 26 Acceptable n/a n/a n/a n/a n/a
05/14/2009 6 Acceptable 62 0.1 10 17 112
10/22/2008 6 Acceptable 57.4 0.1 7.1 9 101
09/15/2008 3 Acceptable n/a n/a n/a n/a n/a
08/07/2008 25 Acceptable n/a n/a n/a n/a n/a
07/16/2008 3 Acceptable 81.3 0.1 2.7 112 106
06/17/2008 119 Beach Advisory n/a n/a n/a n/a n/a
05/21/2008 7 Acceptable 58.4 0.1 2.9 32 97

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:

Staatsburg, NY
The yacht basin is located at the mouth of a small tributary. There is boating, kayaking and fishing.

Agencies Responsible:

Dutchess County Dept. of Health: 845-486-3400 and NYSDEC Region 3: 845-256-3000

Keep the Hudson River flowing!
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