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

100 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
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 6.0
10/09/2022 <10 Acceptable 0.0 0.0 0.1 0.7 0.9
09/09/2022 <10 Acceptable 0.0 1.1 0.1 0.0 1.2
08/11/2022 31 Acceptable 0.1 0.0 0.6 0.0 0.7
07/14/2022 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/13/2022 <10 Acceptable 0.3 0.0 0.0 0.7 1.0
05/23/2022 41 Acceptable 0.0 0.4 0.0 0.7 1.2
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 0.8
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 0.9
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 0.7
06/06/2009 121 Beach Advisory 0.0 0.9 0.5 0.5 2.0
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 0.1
05/19/2008 41 Acceptable 0.0 0.1 0.0 0.9 1.1

Entero Count (fecal indicator) and Rainfall Correlation

100 Samples taken

All Water Quality Parameters

100 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
08/21/2023 <10 Acceptable 25.07 11.05 4.63 27.6 89
07/17/2023 20 Acceptable 26.73 4.46 3.47 67.1 92.7
06/26/2023 10 Acceptable 71.8 13.1 14.9 9.5 113.9
05/01/2023 216 Beach Advisory 54.3 4.1 2.2 14.4 96.0
10/09/2022 <10 Acceptable 62.3 21.4 2 25.3 81
09/09/2022 <10 Acceptable 76.7 21.2 3.8 24.7 70.4
08/11/2022 31 Acceptable 79.2 22.5 5.4 6.9 77.9
07/14/2022 <10 Acceptable 75.6 21.2 5.8 9.9 93.8
06/13/2022 <10 Acceptable 69.9 17.7 3.5 0.3 n/a
05/23/2022 41 Acceptable 63.1 10.9 1.6 28.4 n/a
10/25/2021 10 Acceptable 64.166 7.69 3.03 6.4 88.3
09/13/2021 <10 Acceptable 74.516 8.91 1.65 11.1 78.5
08/16/2021 20 Acceptable 77.396 12 2.42 17.4 77.9
07/19/2021 52 Acceptable 78.566 4.68 5.12 16.9 81.8
06/07/2021 <10 Acceptable 68.54 12.56 1.9 14.8 90.1
05/17/2021 <10 Acceptable 63.788 8.22 1.47 12.4 98.9
10/13/2020 63 Beach Advisory 63.158 17.05 2.79 6.5 85
09/17/2020 10 Acceptable 73.04 21.6 2.96 7.8 71.7
08/13/2020 41 Acceptable 81.86 11.57 40.21 8.3 146.3
07/13/2020 31 Acceptable 80.348 15.71 11.21 7.5 98.1
06/15/2020 <10 Acceptable 71.348 10.35 5.8 6.3 115.4
05/25/2020 10 Acceptable 61.718 12.15 4.02 12.9 102.2
10/07/2019 <10 Acceptable 68.792 19.11 4.35 4.8 84.3
09/09/2019 <10 Acceptable 74.372 12.96 3.81 5.8 85.5
08/05/2019 20 Acceptable 76.784 21.52 2.42 10.2 57.4
07/08/2019 <10 Acceptable 73.868 16.38 3.37 12.5 73.7
06/03/2019 31 Acceptable 64.202 13.06 1.58 13.6 85.6
05/06/2019 74 Beach Advisory 56.552 8.41 1.67 14.7 92.5
10/09/2018 20 Acceptable 70.808 13.6 2.33 21.7 73.6
09/09/2018 145 Beach Advisory 75.56 20.65 3.07 10.2 68.9
08/13/2018 1918 Beach Advisory 76.676 19.24 4.06 9.3 65
07/16/2018 10 Acceptable 75.38 23.29 2.55 10.2 72
06/12/2018 10 Acceptable 66.74 18.24 9.34 13.8 100.9
05/05/2018 20 Acceptable 55.958 4.17 1.88 21.9 100.9
10/15/2017 <10 Acceptable 69.476 18.83 2.03 10.4 76.1
09/10/2017 <10 Acceptable 70.34 19.93 3 8.1 78.8
08/13/2017 <10 Acceptable 75.722 19.18 4.01 9.6 72.7
07/09/2017 10 Acceptable 75.092 11.31 3.26 9.6 95.3
06/11/2017 10 Acceptable 67.424 10.29 2.05 13.4 88.2
05/14/2017 41 Acceptable 57.524 6.02 2.11 22.1 93.5
10/12/2016 <10 Acceptable 65.822 18.9 2.97 34.1 88.2
09/13/2016 <10 Acceptable 76.46 17.69 9.48 n/a 97.6
08/14/2016 <10 Acceptable 82.598 14.79 42.06 24.9 161.1
07/12/2016 <10 Acceptable 77.576 13.4 7.89 10.2 97.7
06/14/2016 <10 Acceptable 69.368 9.49 3.72 28.5 99
05/19/2016 <10 Acceptable 59.09 13.39 2.72 n/a 95.1
10/11/2015 40 Acceptable 65.552 20.85 2.87 52.1 83.5
09/10/2015 441 Beach Advisory 77.27 21.64 5.68 37.7 71
08/11/2015 605 Beach Advisory 74.408 22.18 4.21 17.9 80.2
07/07/2015 <10 Acceptable 72.95 16.85 2.51 21.5 75.8
06/10/2015 10 Acceptable 67.352 15.68 2.27 11.4 82.3
05/11/2015 <10 Acceptable 58.244 18.3 3.57 25.8 93.7
10/12/2014 10 Acceptable 64.58 23.16 1.67 9.5 80.2
09/07/2014 <10 Acceptable 77.216 15.49 5.05 21.7 78.4
08/11/2014 10 Acceptable 76.19 18.74 4.04 42.6 76.2
07/07/2014 <10 Acceptable 74.804 11.28 5.77 14.2 91.1
06/12/2014 10 Acceptable 66.326 14.72 22.6 61.6 102.4
05/12/2014 52 Acceptable 58.55 6.99 2.43 35.1 97.1
10/16/2013 10 Acceptable 65.192 23.01 1.35 17.1 83.6
09/18/2013 20 Acceptable 67.964 23.05 2.32 16.4 75.5
08/14/2013 51 Acceptable 74.372 17.67 3.55 19.2 79.7
07/17/2013 <10 Acceptable 80.06 10.08 10.24 198.8 94.5
06/19/2013 20 Acceptable 70.736 3.91 3.5 19.1 94.8
05/31/2013 20 Acceptable 64.778 9.72 2.04 43.2 86.1
11/08/2012 228 Beach Advisory 51.566 11.77 0.93 25.8 89.4
10/10/2012 52 Acceptable 65.822 12.7 4.71 13.7 86.4
09/10/2012 20 Acceptable 76.73 13.73 8.69 58.7 90.3
08/13/2012 <10 Acceptable 81.554 17.5 9.54 10.3 122
07/16/2012 <10 Acceptable 81.176 17.77 10.62 13.6 120.3
06/11/2012 51 Acceptable 71.474 9.54 5.97 n/a 87.1
05/15/2012 20 Acceptable 61.682 5.56 2.73 56 95.7
10/21/2011 74 Beach Advisory 61.988 6.17 1.43 28.7 87.3
09/14/2011 31 Acceptable 72.248 5.56 1.62 55.5 79.4
08/16/2011 10 Acceptable 77.27 17.54 1.89 24.4 73.6
07/25/2011 10 Acceptable 80.9 8.18 20.03 10.3 130.3
07/22/2011 <10 Acceptable 80.4 14.66 9.58 9.6 n/a
07/21/2011 <10 Acceptable n/a n/a n/a n/a n/a
07/19/2011 <10 Acceptable 79.25 14.38 2.64 218.8 82.8
06/27/2011 10 Acceptable 76.208 5.06 10.85 43.4 95.7
05/16/2011 144 Beach Advisory 57.326 10.88 2.98 48.1 85.6
10/12/2010 231 Beach Advisory 66.524 10.87 5.26 12.6 85.7
09/11/2010 10 Acceptable 71.384 25.51 3.88 20.5 78.3
08/17/2010 <10 Acceptable 78.674 17.7 3.57 13.2 70
07/21/2010 <10 Acceptable 81.032 16.02 46.05 13.6 131.2
06/15/2010 <10 Acceptable 67.55 21.62 2.51 13.3 74
05/21/2010 <10 Acceptable 61.448 13.55 2.91 27 87.9
10/19/2009 41 Acceptable 57.74 20.96 n/a n/a 85.9
09/14/2009 <10 Acceptable 73.058 13.07 2.29 33.3 84.8
08/20/2009 10 Acceptable 77.9 18.94 2.48 37.9 67.2
07/28/2009 20 Acceptable 76.676 13.05 2.51 15.8 74.6
06/22/2009 31 Acceptable 69.962 4.96 1.14 64.1 79.5
06/06/2009 121 Beach Advisory n/a n/a n/a n/a n/a
05/12/2009 20 Acceptable 60.314 8.48 1.39 69 89.9
10/20/2008 <10 Acceptable 61.502 24.32 1.67 6.1 84.7
09/24/2008 <10 Acceptable 70.5 15.16 2.09 11.5 83.1
08/19/2008 10 Acceptable 74.2 20.38 1.78 9.7 74.9
07/14/2008 20 Acceptable 77.324 13.18 5.3 12.1 96.6
07/02/2008 10 Acceptable 74.138 16.68 2.91 25.6 79.8
06/24/2008 <10 Acceptable 72.518 16.83 3.57 11.8 85
05/19/2008 41 Acceptable 57.78 15.31 0.9 28 87.6

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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