Castle Point, NJ

Castle Point, NJ

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

66 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.

QualityRain, day of (in)Prior Day2 Days Prior3 Days Prior Rain4 Days Total Rain
SortSortSortSortSortSortSortSort
10/15/2017<10Acceptable0.00.10.00.10.2
09/10/2017<10Acceptable0.00.00.00.00.0
08/13/2017<10Acceptable0.00.10.00.00.1
07/09/201710Acceptable0.00.01.80.01.8
06/11/201710Acceptable0.00.00.00.00.0
05/14/201741Acceptable0.01.60.00.01.6
10/12/2016<10Acceptable0.00.00.00.60.6
09/13/2016<10Acceptable0.00.00.00.00.0
08/14/2016<10Acceptable0.00.00.30.20.5
07/12/2016<10Acceptable0.00.00.00.50.5
06/14/2016<10Acceptable0.00.00.00.00.0
05/19/2016<10Acceptable0.00.00.00.00.0
10/11/201540Acceptable0.00.00.90.00.9
09/10/2015441Beach Advisory1.60.00.00.01.6
08/11/2015605Beach Advisory1.20.00.00.01.2
07/07/2015<10Acceptable0.00.00.00.00.0
06/10/201510Acceptable0.00.00.10.00.1
05/11/2015<10Acceptable0.00.00.00.00.0
10/12/201410Acceptable0.00.30.00.00.3
09/07/2014<10Acceptable0.00.10.00.00.1
08/11/201410Acceptable0.00.00.00.00.0
07/07/2014<10Acceptable0.00.00.00.10.1
06/12/201410Acceptable0.00.00.01.61.6
05/12/201452Acceptable0.00.00.40.00.4
10/16/201310Acceptable0.00.00.00.00.0
09/18/201320Acceptable0.00.00.00.00.0
08/14/201351Acceptable0.00.90.10.01.0
07/17/2013<10Acceptable0.00.00.00.00.0
06/19/201320Acceptable0.00.20.00.00.2
05/31/201320Acceptable0.00.00.00.50.5
11/08/2012228Beach Advisory0.11.10.00.01.2
10/10/201252Acceptable0.30.00.00.20.5
09/10/201220Acceptable0.00.00.40.00.4
08/13/2012<10Acceptable0.00.00.00.20.2
07/16/2012<10Acceptable0.00.30.00.00.3
06/11/201251Acceptable0.00.00.00.00.0
05/15/201220Acceptable0.50.00.00.00.5
10/21/201174Beach Advisory0.00.01.10.01.1
09/14/201131Acceptable0.00.00.00.00.0
08/16/201110Acceptable0.00.65.80.06.4
07/25/201110Acceptable0.00.00.00.00.0
07/22/2011<10Acceptable0.00.00.00.00.0
07/21/2011<10Acceptable0.00.00.00.10.1
07/19/2011<10Acceptable0.00.10.00.00.1
06/27/201110Acceptable0.00.00.00.00.0
05/16/2011144Beach Advisory0.20.90.00.01.1
10/12/2010231Beach Advisory0.11.10.00.01.2
09/11/201010Acceptable0.00.00.00.00.0
08/17/2010<10Acceptable0.00.10.20.00.3
07/21/2010<10Acceptable0.00.00.10.00.1
06/15/2010<10Acceptable0.00.00.30.00.3
05/21/2010<10Acceptable0.00.00.01.11.1
10/19/200941Acceptable0.00.30.00.10.4
09/14/2009<10Acceptable0.00.00.00.80.8
08/20/200910Acceptable0.00.00.60.00.6
07/28/200920Acceptable0.00.61.40.02.0
06/22/200931Acceptable0.00.50.30.00.8
06/06/2009121Beach Advisory0.00.90.50.51.9
05/12/200920Acceptable0.00.00.00.60.6
10/20/2008<10Acceptable0.00.00.00.00.0
09/24/2008<10Acceptable0.00.00.00.00.0
08/19/200810Acceptable0.00.00.00.00.0
07/14/200820Acceptable0.50.00.00.00.5
07/02/200810Acceptable0.00.00.00.60.6
06/24/2008<10Acceptable0.00.10.10.00.2
05/19/200841Acceptable0.00.10.00.91.0

Entero Count (fecal indicator) and Rainfall Correlation

66 Samples taken

All Water Quality Parameters

66 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%).

SortSortSortSortSortSortSortSort
10/15/2017<10Acceptable69.518.82.010.476.1
09/10/2017<10Acceptable70.319.938.178.8
08/13/2017<10Acceptable75.719.249.672.7
07/09/201710Acceptable75.111.33.39.695.3
06/11/201710Acceptable67.410.32.113.488.2
05/14/201741Acceptable57.56.02.122.193.5
10/12/2016<10Acceptable65.818.933488
09/13/2016<10Acceptable76.517.79.5n/a98
08/14/2016<10Acceptable82.614.842.125161
07/12/2016<10Acceptable77.613.47.91098
06/14/2016<10Acceptable69.49.53.72999
05/19/2016<10Acceptable59.113.42.7n/a95
10/11/201540Acceptable65.620.92.95284
09/10/2015441Beach Advisory77.321.65.73871
08/11/2015605Beach Advisory74.422.24.21880
07/07/2015<10Acceptable7316.92.52276
06/10/201510Acceptable67.415.72.31182
05/11/2015<10Acceptable58.218.33.62694
10/12/201410Acceptable64.623.21.71080
09/07/2014<10Acceptable77.215.55.12278
08/11/201410Acceptable76.218.744376
07/07/2014<10Acceptable74.811.35.81491
06/12/201410Acceptable66.314.722.662102
05/12/201452Acceptable58.672.43597
10/16/201310Acceptable65.2231.41784
09/18/201320Acceptable6823.12.31676
08/14/201351Acceptable74.417.73.61980
07/17/2013<10Acceptable80.110.110.219995
06/19/201320Acceptable70.73.93.51995
05/31/201320Acceptable64.89.724386
11/08/2012228Beach Advisory51.611.80.92689
10/10/201252Acceptable65.812.74.71486
09/10/201220Acceptable76.713.78.75990
08/13/2012<10Acceptable81.617.59.510122
07/16/2012<10Acceptable81.217.810.614120
06/11/201251Acceptable71.59.56n/a87
05/15/201220Acceptable61.75.62.75696
10/21/201174Beach Advisory626.21.42987
09/14/201131Acceptable72.25.61.65679
08/16/201110Acceptable77.317.51.92474
07/25/201110Acceptable80.98.22010130
07/22/2011<10Acceptable80.414.79.610n/a
07/21/2011<10Acceptablen/an/an/an/an/a
07/19/2011<10Acceptable79.314.42.621983
06/27/201110Acceptable76.25.110.94396
05/16/2011144Beach Advisory57.310.934886
10/12/2010231Beach Advisory66.510.95.31386
09/11/201010Acceptable71.425.53.92178
08/17/2010<10Acceptable78.717.73.61370
07/21/2010<10Acceptable811646.114131
06/15/2010<10Acceptable67.621.62.51374
05/21/2010<10Acceptable61.413.62.92788
10/19/200941Acceptable57.721n/an/a86
09/14/2009<10Acceptable73.113.12.33385
08/20/200910Acceptable77.918.92.53867
07/28/200920Acceptable76.713.12.51675
06/22/200931Acceptable7051.16480
06/06/2009121Beach Advisoryn/an/an/an/an/a
05/12/200920Acceptable60.38.51.46990
10/20/2008<10Acceptable61.524.31.7685
09/24/2008<10Acceptable70.515.22.11283
08/19/200810Acceptable74.220.41.81075
07/14/200820Acceptable77.313.25.31297
07/02/200810Acceptable74.116.72.92680
06/24/2008<10Acceptable72.516.83.61285
05/19/200841Acceptable57.815.30.92888

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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