North River Sewage Treatment Plant at 145th

125th St. Wastewater Treatment Plant Outfall

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

74 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
10/15/201710Acceptable0.00.10.00.10.2
09/10/2017<10Acceptable0.00.00.00.00.0
08/13/201720Acceptable0.00.10.00.00.1
07/09/201710Acceptable0.00.01.80.01.8
06/11/201741Acceptable0.00.00.00.00.0
05/14/201775Beach Advisory0.01.60.00.01.6
04/04/20171723Beach Advisory1.20.00.00.01.2
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
10/11/201510Acceptable0.00.00.90.00.9
09/10/2015120Beach Advisory1.60.00.00.01.6
08/11/2015241Beach Advisory1.20.00.00.01.2
07/07/2015<10Acceptable0.00.00.00.00.0
06/10/201510Acceptable0.00.00.10.00.1
05/11/201510Acceptable0.00.00.00.00.0
10/12/201486Beach Advisory0.00.30.00.00.3
09/07/2014<10Acceptable0.00.10.00.00.1
08/11/201420Acceptable0.00.00.00.00.0
07/07/2014185Beach Advisory0.00.00.00.10.1
06/12/201441Acceptable0.00.00.01.61.6
05/12/2014171Beach Advisory0.00.00.40.00.4
10/16/2013<10Acceptable0.00.00.00.00.0
09/18/201341Acceptable0.00.00.00.00.0
08/14/201351Acceptable0.00.90.10.01.0
07/17/2013723Beach Advisory0.00.00.00.00.0
06/19/201374Beach Advisory0.00.20.00.00.2
05/31/2013109Beach Advisory0.00.00.00.50.5
11/08/201275Beach Advisory0.11.10.00.01.2
10/10/20122098Beach Advisory0.30.00.00.20.5
09/10/20122987Beach Advisory0.00.00.40.00.4
08/13/2012521Beach Advisory0.00.00.00.20.2
07/16/201252Acceptable0.00.30.00.00.3
06/11/2012231Beach Advisory0.00.00.00.00.0
05/15/2012108Beach Advisory0.50.00.00.00.5
10/21/2011794Beach Advisory0.00.01.10.01.1
09/14/201131Acceptable0.00.00.00.00.0
08/16/2011201Beach Advisory0.00.65.80.06.4
07/25/201110Acceptable0.00.00.00.00.0
07/22/201175Beach Advisory0.00.00.00.00.0
07/19/2011<10Acceptable0.00.10.00.00.1
06/27/2011262Beach Advisory0.00.00.00.00.0
05/16/201152Acceptable0.20.90.00.01.1
10/12/201063Beach Advisory0.11.10.00.01.2
09/11/2010<10Acceptable0.00.00.00.00.0
08/17/201010Acceptable0.00.10.20.00.3
07/21/201010Acceptable0.00.00.10.00.1
06/15/201020Acceptable0.00.00.30.00.3
05/21/201010Acceptable0.00.00.01.11.1
10/19/200952Acceptable0.00.30.00.10.4
09/14/2009<10Acceptable0.00.00.00.80.8
08/20/200910Acceptable0.00.00.60.00.6
07/28/200931Acceptable0.00.61.40.02.0
06/22/200931Acceptable0.00.50.30.00.8
06/06/200920Acceptable0.00.90.50.51.9
05/12/200920Acceptable0.00.00.00.60.6
10/20/200810Acceptable0.00.00.00.00.0
09/24/2008<10Acceptable0.00.00.00.00.0
08/19/2008<10Acceptable0.00.00.00.00.0
07/14/2008147Beach Advisory0.50.00.00.00.5
07/02/200815Acceptable0.00.00.00.60.6
05/19/2008<10Acceptable0.00.10.00.91.0
09/06/2007<10Acceptable0.00.00.00.00.0
08/16/20072Acceptable0.00.00.00.00.0
07/11/2007105Beach Advisory1.00.00.00.01.0
06/18/20079Acceptable0.00.00.00.00.0
05/23/20075Acceptable0.00.00.00.00.0
04/18/2007236Beach Advisory0.00.00.97.68.5
11/10/200672Beach Advisory0.00.03.60.03.6
10/18/200635Acceptable0.01.10.00.01.1
09/26/20062Acceptable0.00.00.00.10.1

Entero Count (fecal indicator) and Rainfall Correlation

74 Samples taken

All Water Quality Parameters

74 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
10/15/201710Acceptable70.016.52.17.078.9
09/10/2017<10Acceptable70.918.52.312.473.9
08/13/201720Acceptable76.314.42.220.569.3
07/09/201710Acceptable75.78.32.79.198.8
06/11/201741Acceptable68.961.81390.3
05/14/201775Beach Advisory58.02.62.121.196.0
04/04/20171723Beach Advisory42.23.82.334.093.0
10/12/2016<10Acceptable65.516.67.63191
09/13/2016<10Acceptable76.714.537.4n/a129
08/14/2016<10Acceptable83.411.547.621175
07/12/2016<10Acceptable7810.18.39106
06/14/2016<10Acceptable68.98.33.728100
05/19/2016<10Acceptable59.310.92.1n/a97
10/11/201510Acceptable65.818.73.53685
09/10/2015120Beach Advisory77.818.67.71275
08/11/2015241Beach Advisory75.119.94.72980
07/07/2015<10Acceptable75.19.95.53582
06/10/201510Acceptable68.411.12.61285
05/11/201510Acceptable6012.82.73192
10/12/201486Beach Advisory64.8171.52977
09/07/2014<10Acceptable77.412.95.51187
08/11/201420Acceptable77.113.90.81877
07/07/2014185Beach Advisory76.77.710.115102
06/12/201441Acceptable67.610.533.220113
05/12/2014171Beach Advisory58.96.62.42398
10/16/2013<10Acceptable65.320.91.31379
09/18/201341Acceptable69.120.81.92472
08/14/201351Acceptable76.110.99.13993
07/17/2013723Beach Advisory80.897.67395
06/19/201374Beach Advisory70.15.23.52194
05/31/2013109Beach Advisory66.25.23.17091
11/08/201275Beach Advisory51.611.113490
10/10/20122098Beach Advisory66.19.46.9691
09/10/20122987Beach Advisory76.911.711.16394
08/13/2012521Beach Advisory81.815.29.710133
07/16/201252Acceptable82.215.221.69151
06/11/2012231Beach Advisory71.78.65.9n/a83
05/15/2012108Beach Advisory61.75.43.43597
10/21/2011794Beach Advisory62.13.81.93891
09/14/201131Acceptable72.13.51.712580
08/16/2011201Beach Advisory77.614.91.67667
07/25/201110Acceptable82.16.6239144
07/22/201175Beach Advisory85.38.843.518n/a
07/19/2011<10Acceptable79.213.72.81584
06/27/2011262Beach Advisory76.84.21150102
05/16/201152Acceptable588.42.714085
10/12/201063Beach Advisory66.19.73.61982
09/11/2010<10Acceptable73.319.82.47071
08/17/201010Acceptable78.417.53.82172
07/21/201010Acceptable82.613.767.218167
06/15/201020Acceptable68.8182.55066
05/21/201010Acceptable60.913.333387
10/19/200952Acceptable5716.3n/an/a85
09/14/2009<10Acceptable73.312.52.93585
08/20/200910Acceptable78.514.51.72965
07/28/200931Acceptable77.210.22.31977
06/22/200931Acceptable70.32.50.97283
06/06/200920Acceptablen/an/an/an/an/a
05/12/200920Acceptable60.47.11.44292
10/20/200810Acceptable61.920.21.41281
09/24/2008<10Acceptable70.315.81.91679
08/19/2008<10Acceptable75.816.31.65275
07/14/2008147Beach Advisory7810.96.311102
07/02/200815Acceptable77.911.7913109
05/19/2008<10Acceptable59.291.23993
09/06/2007<10Acceptable75.118.263886
08/16/20072Acceptable77.917.22.111372
07/11/2007105Beach Advisory71.2223.512781
06/18/20079Acceptablen/an/an/an/an/a
05/23/20075Acceptablen/an/an/an/an/a
04/18/2007236Beach Advisory44.20.60.269100
11/10/200672Beach Advisory52.62.91.44194
10/18/200635Acceptable63.210.44690
09/26/20062Acceptable69.817.60.2n/a82

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:

Manhattan, NY
The Hudson in the vicinity of this sewage treatment plant has recreational boating, kayaking and fishing.

Agencies Responsible:

NYCDEP: 212-639-9675 or NYSDEC Region 2: 718-482-4933

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