Water Quality
Water Quality > Hudson River Estuary Data > New York City, Hudson County & Bergen County Sites > Castle Point, NJ

Castle Point, NJ

Castle Point, NJ
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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

104 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
06/10/2024 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/20/2024 <10 Acceptable 0.0 0.0 0.0 0.0 0.1
10/16/2023 52 Acceptable 0.0 0.0 0.7 0.0 0.8
09/18/2023 260 Beach Advisory 0.9 0.1 0.0 0.0 1.0
08/21/2023 <10 Acceptable 0.0 0.0 0.0 1.6 1.6
07/17/2023 20 Acceptable 0.0 0.1 0.2 0.1 0.4
06/26/2023 10 Acceptable 0.0 0.0 0.1 0.0 0.1
05/01/2023 216 Beach Advisory 3.1 1.1 1.7 0.0 5.9
10/09/2022 <10 Acceptable 0.0 0.0 0.0 0.1 0.1
09/09/2022 <10 Acceptable 0.0 0.0 1.1 0.1 1.2
08/11/2022 31 Acceptable 0.1 0.1 0.0 0.6 0.8
07/14/2022 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/13/2022 <10 Acceptable 0.0 0.3 0.0 0.0 0.3
05/23/2022 41 Acceptable 0.0 0.0 0.4 0.0 0.5
10/25/2021 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/13/2021 <10 Acceptable 0.0 0.0 0.0 0.1 0.1
08/16/2021 20 Acceptable 0.0 0.0 0.0 0.0 0.0
07/19/2021 52 Acceptable 0.0 0.6 0.0 0.0 0.6
06/07/2021 <10 Acceptable 0.0 0.0 0.7 0.3 1.0
05/17/2021 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/13/2020 63 Beach Advisory 0.9 0.2 0.0 0.0 1.1
09/17/2020 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/13/2020 41 Acceptable 1.5 0.0 0.0 0.0 1.5
07/13/2020 31 Acceptable 0.1 0.0 2.5 0.0 2.6
06/15/2020 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/25/2020 10 Acceptable 0.0 0.0 0.8 0.0 0.8
10/07/2019 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/09/2019 <10 Acceptable 0.0 0.0 0.0 0.3 0.3
08/05/2019 20 Acceptable 0.0 0.0 0.2 0.0 0.2
07/08/2019 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/03/2019 31 Acceptable 0.0 0.3 0.0 0.0 0.3
05/06/2019 74 Beach Advisory 0.0 1.3 0.1 0.1 1.5
10/09/2018 20 Acceptable 0.0 0.0 0.0 0.0 0.0
09/09/2018 145 Beach Advisory 0.5 0.0 0.0 0.4 0.9
08/13/2018 1918 Beach Advisory 0.7 0.0 2.9 0.0 3.6
07/16/2018 10 Acceptable 0.0 0.6 0.4 0.0 1.0
06/12/2018 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/05/2018 20 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2017 <10 Acceptable 0.0 0.1 0.0 0.1 0.2
09/10/2017 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/13/2017 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
07/09/2017 10 Acceptable 0.0 0.0 1.8 0.0 1.8
06/11/2017 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/14/2017 41 Acceptable 0.0 1.6 0.0 0.0 1.6
10/12/2016 <10 Acceptable 0.0 0.0 0.0 0.6 0.6
09/13/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2016 <10 Acceptable 0.0 0.0 0.3 0.2 0.5
07/12/2016 <10 Acceptable 0.0 0.0 0.0 0.5 0.5
06/14/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/19/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/11/2015 40 Acceptable 0.0 0.0 0.9 0.0 0.9
09/10/2015 441 Beach Advisory 1.6 0.0 0.0 0.0 1.6
08/11/2015 605 Beach Advisory 1.2 0.0 0.0 0.0 1.2
07/07/2015 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/10/2015 10 Acceptable 0.0 0.0 0.1 0.0 0.1
05/11/2015 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/12/2014 10 Acceptable 0.0 0.3 0.0 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 <10 Acceptable 0.0 0.0 0.0 0.1 0.1
06/12/2014 10 Acceptable 0.0 0.0 0.0 1.6 1.6
05/12/2014 52 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 20 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2013 51 Acceptable 0.0 0.9 0.1 0.0 0.9
07/17/2013 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/19/2013 20 Acceptable 0.0 0.2 0.0 0.0 0.2
05/31/2013 20 Acceptable 0.0 0.0 0.0 0.5 0.5
11/08/2012 228 Beach Advisory 0.1 1.1 0.0 0.0 1.2
10/10/2012 52 Acceptable 0.3 0.0 0.0 0.2 0.5
09/10/2012 20 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 <10 Acceptable 0.0 0.3 0.0 0.0 0.3
06/11/2012 51 Acceptable 0.0 0.0 0.0 0.0 0.0
05/15/2012 20 Acceptable 0.5 0.0 0.0 0.0 0.5
10/21/2011 74 Beach Advisory 0.0 0.0 1.1 0.0 1.1
09/14/2011 31 Acceptable 0.0 0.0 0.0 0.0 0.0
08/16/2011 10 Acceptable 0.0 0.6 5.8 0.0 6.4
07/25/2011 10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/22/2011 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/21/2011 <10 Acceptable 0.0 0.0 0.0 0.1 0.1
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 144 Beach Advisory 0.2 0.9 0.0 0.0 1.1
10/12/2010 231 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 <10 Acceptable 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 41 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 20 Acceptable 0.0 0.6 1.4 0.0 2.0
06/22/2009 31 Acceptable 0.0 0.5 0.3 0.0 0.8
06/06/2009 121 Beach Advisory 0.0 0.9 0.5 0.5 1.9
05/12/2009 20 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 20 Acceptable 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 <10 Acceptable 0.0 0.1 0.1 0.0 0.2
05/19/2008 41 Acceptable 0.0 0.1 0.0 0.9 1.0

Entero Count (fecal indicator) and Rainfall Correlation

104 Samples taken

All Water Quality Parameters

104 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
06/10/2024 10 Acceptable 69.8 NS NS NS 75.2
05/20/2024 <10 Acceptable 63.59 7.59 2.28 2.8 112.0
10/16/2023 52 Acceptable 54 14.97 0.89 4.8 98.9
09/18/2023 260 Beach Advisory n/a n/a n/a n/a n/a
08/21/2023 <10 Acceptable 77.1 11.1 4.6 28 89
07/17/2023 20 Acceptable 80.1 4.5 3.5 67 93
06/26/2023 10 Acceptable 71.8 13.1 14.9 10 114
05/01/2023 216 Beach Advisory 54.3 4.1 2.2 14 96
10/09/2022 <10 Acceptable 62.3 21.4 2 25 81
09/09/2022 <10 Acceptable 76.7 21.2 3.8 25 70
08/11/2022 31 Acceptable 79.2 22.5 5.4 7 78
07/14/2022 <10 Acceptable 75.6 21.2 5.8 10 94
06/13/2022 <10 Acceptable 69.9 17.7 3.5 3 n/a
05/23/2022 41 Acceptable 63.1 10.9 1.6 28 n/a
10/25/2021 10 Acceptable 64.2 7.7 3 6 88
09/13/2021 <10 Acceptable 74.5 8.9 1.7 11 79
08/16/2021 20 Acceptable 77.4 12 2.4 17 78
07/19/2021 52 Acceptable 78.6 4.7 5.1 17 82
06/07/2021 <10 Acceptable 68.5 12.6 1.9 15 90
05/17/2021 <10 Acceptable 63.8 8.2 1.5 12 99
10/13/2020 63 Beach Advisory 63.2 17.1 2.8 7 85
09/17/2020 10 Acceptable 73 21.6 3 8 72
08/13/2020 41 Acceptable 81.9 11.6 40.2 8 146
07/13/2020 31 Acceptable 80.3 15.7 11.2 8 98
06/15/2020 <10 Acceptable 71.3 10.4 5.8 6 115
05/25/2020 10 Acceptable 61.7 12.2 4 13 102
10/07/2019 <10 Acceptable 68.8 19.1 4.4 5 84
09/09/2019 <10 Acceptable 74.4 13 3.8 6 86
08/05/2019 20 Acceptable 76.8 21.5 2.4 10 57
07/08/2019 <10 Acceptable 73.9 16.4 3.4 13 74
06/03/2019 31 Acceptable 64.2 13.1 1.6 14 86
05/06/2019 74 Beach Advisory 56.6 8.4 1.7 15 93
10/09/2018 20 Acceptable 70.8 13.6 2.3 22 74
09/09/2018 145 Beach Advisory 75.6 20.7 3.1 10 69
08/13/2018 1918 Beach Advisory 76.7 19.2 4.1 9 65
07/16/2018 10 Acceptable 75.4 23.3 2.6 10 72
06/12/2018 10 Acceptable 66.7 18.2 9.3 14 101
05/05/2018 20 Acceptable 56 4.2 1.9 22 101
10/15/2017 <10 Acceptable 69.5 18.8 2 10 76
09/10/2017 <10 Acceptable 70.3 19.9 3 8 79
08/13/2017 <10 Acceptable 75.7 19.2 4 10 73
07/09/2017 10 Acceptable 75.1 11.3 3.3 10 95
06/11/2017 10 Acceptable 67.4 10.3 2.1 13 88
05/14/2017 41 Acceptable 57.5 6 2.1 22 94
10/12/2016 <10 Acceptable 65.8 18.9 3 34 88
09/13/2016 <10 Acceptable 76.5 17.7 9.5 n/a 98
08/14/2016 <10 Acceptable 82.6 14.8 42.1 25 161
07/12/2016 <10 Acceptable 77.6 13.4 7.9 10 98
06/14/2016 <10 Acceptable 69.4 9.5 3.7 29 99
05/19/2016 <10 Acceptable 59.1 13.4 2.7 n/a 95
10/11/2015 40 Acceptable 65.6 20.9 2.9 52 84
09/10/2015 441 Beach Advisory 77.3 21.6 5.7 38 71
08/11/2015 605 Beach Advisory 74.4 22.2 4.2 18 80
07/07/2015 <10 Acceptable 73 16.9 2.5 22 76
06/10/2015 10 Acceptable 67.4 15.7 2.3 11 82
05/11/2015 <10 Acceptable 58.2 18.3 3.6 26 94
10/12/2014 10 Acceptable 64.6 23.2 1.7 10 80
09/07/2014 <10 Acceptable 77.2 15.5 5.1 22 78
08/11/2014 10 Acceptable 76.2 18.7 4 43 76
07/07/2014 <10 Acceptable 74.8 11.3 5.8 14 91
06/12/2014 10 Acceptable 66.3 14.7 22.6 62 102
05/12/2014 52 Acceptable 58.6 7 2.4 35 97
10/16/2013 10 Acceptable 65.2 23 1.4 17 84
09/18/2013 20 Acceptable 68 23.1 2.3 16 76
08/14/2013 51 Acceptable 74.4 17.7 3.6 19 80
07/17/2013 <10 Acceptable 80.1 10.1 10.2 199 95
06/19/2013 20 Acceptable 70.7 3.9 3.5 19 95
05/31/2013 20 Acceptable 64.8 9.7 2 43 86
11/08/2012 228 Beach Advisory 51.6 11.8 0.9 26 89
10/10/2012 52 Acceptable 65.8 12.7 4.7 14 86
09/10/2012 20 Acceptable 76.7 13.7 8.7 59 90
08/13/2012 <10 Acceptable 81.6 17.5 9.5 10 122
07/16/2012 <10 Acceptable 81.2 17.8 10.6 14 120
06/11/2012 51 Acceptable 71.5 9.5 6 n/a 87
05/15/2012 20 Acceptable 61.7 5.6 2.7 56 96
10/21/2011 74 Beach Advisory 62 6.2 1.4 29 87
09/14/2011 31 Acceptable 72.2 5.6 1.6 56 79
08/16/2011 10 Acceptable 77.3 17.5 1.9 24 74
07/25/2011 10 Acceptable 80.9 8.2 20 10 130
07/22/2011 <10 Acceptable 80.4 14.7 9.6 10 n/a
07/21/2011 <10 Acceptable n/a n/a n/a n/a n/a
07/19/2011 <10 Acceptable 79.3 14.4 2.6 219 83
06/27/2011 10 Acceptable 76.2 5.1 10.9 43 96
05/16/2011 144 Beach Advisory 57.3 10.9 3 48 86
10/12/2010 231 Beach Advisory 66.5 10.9 5.3 13 86
09/11/2010 10 Acceptable 71.4 25.5 3.9 21 78
08/17/2010 <10 Acceptable 78.7 17.7 3.6 13 70
07/21/2010 <10 Acceptable 81 16 46.1 14 131
06/15/2010 <10 Acceptable 67.6 21.6 2.5 13 74
05/21/2010 <10 Acceptable 61.4 13.6 2.9 27 88
10/19/2009 41 Acceptable 57.7 21 n/a n/a 86
09/14/2009 <10 Acceptable 73.1 13.1 2.3 33 85
08/20/2009 10 Acceptable 77.9 18.9 2.5 38 67
07/28/2009 20 Acceptable 76.7 13.1 2.5 16 75
06/22/2009 31 Acceptable 70 5 1.1 64 80
06/06/2009 121 Beach Advisory n/a n/a n/a n/a n/a
05/12/2009 20 Acceptable 60.3 8.5 1.4 69 90
10/20/2008 <10 Acceptable 61.5 24.3 1.7 6 85
09/24/2008 <10 Acceptable 70.5 15.2 2.1 12 83
08/19/2008 10 Acceptable 74.2 20.4 1.8 10 75
07/14/2008 20 Acceptable 77.3 13.2 5.3 12 97
07/02/2008 10 Acceptable 74.1 16.7 2.9 26 80
06/24/2008 <10 Acceptable 72.5 16.8 3.6 12 85
05/19/2008 41 Acceptable 57.8 15.3 0.9 28 88

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:

Hoboken, NJ
This sample site is located at the HRECOS research buoy of the Stevens Institute of Technology in Hoboken, New Jersey.

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:

Hudson County Dept. of Health: 201-271-4310, NJDEP: 609-777-1753 and NYCDEP: 212-639-9675

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