Water Quality
Water Quality > Tributary and Waterfront Data > New York City Waterfront > Inwood- Harlem R, Swindler’s Cove (P.J. Sharp boathouse)

Inwood- Harlem R, Swindler’s Cove (P.J. Sharp boathouse)

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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

136 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
10/03/2019 95 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/26/2019 20 Acceptable 0.0 0.0 0.1 0.0 0.1
09/19/2019 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/12/2019 52 Acceptable 0.0 0.0 0.0 0.0 0.0
09/05/2019 30 Acceptable 0.0 0.0 0.0 0.3 0.3
08/29/2019 10 Acceptable 0.0 0.1 0.0 0.0 0.1
08/22/2019 10 Acceptable 0.0 0.1 0.0 0.0 0.1
08/08/2019 98 Beach Advisory 0.2 1.2 0.0 0.0 1.4
08/01/2019 144 Beach Advisory 0.0 0.4 0.0 0.0 0.4
07/18/2019 2,613 Acceptable 0.5 1.8 0.0 0.0 2.3
07/11/2019 10 Acceptable 0.8 0.0 0.0 0.0 0.8
06/27/2019 199 Beach Advisory 0.0 0.0 0.9 0.0 0.9
06/20/2019 266 Beach Advisory 0.0 0.1 0.7 0.0 0.8
06/13/2019 2613 Beach Advisory 0.0 0.0 0.5 0.6 1.1
06/06/2019 52 Acceptable 0.0 0.0 0.0 0.0 0.0
05/30/2019 689 Beach Advisory 0.0 0.8 0.2 0.0 1.0
05/23/2019 2851 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/04/2018 110 Beach Advisory 0.0 0.0 0.7 0.0 0.7
09/27/2018 767 Beach Advisory 0.0 0.2 2.0 0.0 2.2
09/20/2018 285 Beach Advisory 0.0 0.0 1.2 0.0 1.2
09/13/2018 933 Beach Advisory 0.1 0.2 0.0 0.9 1.2
09/06/2018 391 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/30/2018 30 Acceptable 0.0 0.0 0.0 0.0 0.0
08/23/2018 17329 Beach Advisory 0.0 0.7 0.1 0.0 0.8
08/16/2018 17329 Beach Advisory 0.0 0.8 0.7 0.0 1.5
08/09/2018 1374 Beach Advisory 0.6 0.0 0.3 0.0 0.9
08/02/2018 329 Beach Advisory 0.0 0.1 0.0 0.4 0.5
07/26/2018 443 Beach Advisory 0.0 0.7 0.0 0.2 0.9
07/19/2018 529 Beach Advisory 0.0 0.0 2.2 0.0 2.2
07/12/2018 14136 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/05/2018 20 Acceptable 0.0 0.0 0.0 0.0 0.0
06/28/2018 350 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/21/2018 546 Beach Advisory 0.0 0.1 0.1 0.1 0.2
06/14/2018 201 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/07/2018 10 Acceptable 0.0 0.0 0.0 0.2 0.2
05/31/2018 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/24/2018 <10 Acceptable 0.0 0.3 0.3 0.0 0.6
09/28/2017 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/21/2017 <10 Acceptable 0.0 0.0 0.2 0.0 0.2
09/14/2017 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
09/07/2017 52 Acceptable 0.0 0.4 0.0 0.0 0.4
08/31/2017 10 Acceptable 0.0 0.0 0.1 0.0 0.1
08/24/2017 10 Acceptable 0.0 0.0 0.3 0.0 0.3
08/17/2017 30 Acceptable 0.0 0.0 0.5 0.0 0.5
08/10/2017 10 Acceptable 0.0 0.0 0.0 0.8 0.8
08/03/2017 546 Beach Advisory 0.0 0.1 0.0 0.0 0.1
07/27/2017 41 Acceptable 0.0 0.0 0.0 0.7 0.7
07/20/2017 10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/13/2017 20 Acceptable 0.0 0.0 0.0 0.0 0.0
07/06/2017 30 Acceptable 0.0 0.0 0.0 0.5 0.5
06/29/2017 135 Beach Advisory 0.0 0.0 0.2 0.0 0.2
06/22/2017 86 Beach Advisory 0.0 0.0 0.0 1.4 1.4
06/15/2017 <10 Acceptable 0.0 0.3 0.0 0.0 0.3
06/08/2017 20 Acceptable 0.0 0.0 0.1 0.0 0.1
06/01/2017 74 Beach Advisory 0.0 0.0 0.1 0.1 0.2
05/25/2017 74 Beach Advisory 0.2 0.0 0.0 0.6 0.9
05/18/2017 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2016 20 Acceptable 0.0 0.0 0.2 0.0 0.2
09/22/2016 20 Acceptable 0.0 0.0 0.0 0.7 0.7
09/15/2016 <10 Acceptable 0.0 0.6 0.0 0.0 0.6
09/08/2016 97 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/01/2016 <10 Acceptable 0.5 0.0 0.0 0.0 0.5
08/25/2016 20 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2016 <10 Acceptable 0.0 0.0 0.1 0.0 0.2
08/11/2016 31 Acceptable 0.2 0.1 0.0 0.0 0.2
08/04/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/28/2016 <10 Acceptable 0.0 0.0 0.0 1.0 1.0
07/21/2016 <10 Acceptable 0.0 0.0 0.0 0.4 0.4
07/14/2016 10 Acceptable 0.6 0.0 0.0 0.0 0.6
07/07/2016 20 Acceptable 0.0 0.0 0.7 0.5 1.2
06/30/2016 52 Acceptable 0.0 0.0 0.1 0.5 0.6
06/23/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/16/2016 161 Beach Advisory 0.2 0.0 0.0 0.0 0.2
06/09/2016 95 Beach Advisory 0.0 0.5 0.0 0.0 0.5
06/02/2016 10 Acceptable 0.0 0.0 0.0 1.7 1.7
05/26/2016 10 Acceptable 0.0 0.0 0.2 0.0 0.2
05/19/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/01/2015 158 Beach Advisory 0.1 1.3 0.1 0.0 1.5
09/24/2015 31 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2015 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2015 1918 Beach Advisory 1.6 0.0 0.0 0.0 1.6
09/03/2015 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/27/2015 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/20/2015 10 Acceptable 0.0 0.0 0.3 0.0 0.3
08/13/2015 10 Acceptable 0.0 0.0 1.2 0.0 1.2
08/06/2015 20 Acceptable 0.0 0.0 0.4 0.0 0.4
07/30/2015 <10 Acceptable 2.0 0.0 0.0 0.4 2.3
07/23/2015 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/16/2015 20 Acceptable 0.0 0.1 0.4 0.0 0.5
07/09/2015 10 Acceptable 0.3 0.0 0.1 0.0 0.4
07/01/2015 158 Beach Advisory 0.4 0.0 0.0 0.3 0.7
06/25/2015 10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/18/2015 30 Acceptable 0.0 0.0 0.3 0.6 0.8
06/11/2015 10 Acceptable 0.0 0.0 0.0 0.1 0.1
06/04/2015 <10 Acceptable 0.0 0.0 0.4 0.7 1.1
05/28/2015 63 Beach Advisory 0.0 0.1 0.0 0.0 0.1
05/21/2015 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
10/02/2014 41 Acceptable 0.0 0.0 0.0 0.0 0.0
09/18/2014 20 Acceptable 0.0 0.0 0.4 0.0 0.4
09/11/2014 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/04/2014 41 Acceptable 0.0 0.0 0.0 0.0 0.0
08/28/2014 84 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/21/2014 <10 Acceptable 0.4 0.0 0.0 0.0 0.4
08/14/2014 275 Beach Advisory 0.0 0.5 0.2 0.0 0.7
08/07/2014 31 Acceptable 0.0 0.0 0.0 0.0 0.0
07/31/2014 <10 Acceptable 0.0 0.0 0.0 0.2 0.2
07/24/2014 20 Acceptable 0.0 0.2 0.0 0.0 0.2
07/17/2014 132 Beach Advisory 0.0 0.0 1.3 0.5 1.8
07/10/2014 <10 Acceptable 0.0 0.1 0.4 0.0 0.5
07/02/2014 <10 Acceptable 1.0 0.0 0.0 0.0 1.0
06/26/2014 10 Acceptable 0.1 0.1 0.0 0.0 0.2
06/12/2014 52 Acceptable 0.1 0.0 0.0 1.6 1.7
05/22/2014 148 Beach Advisory 0.2 0.0 0.0 0.0 0.2
09/26/2013 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/19/2013 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/12/2013 63 Beach Advisory 1.6 0.0 0.0 0.0 1.6
09/05/2013 10 Acceptable 0.0 0.0 0.0 0.1 0.1
08/29/2013 2035 Beach Advisory 0.0 0.4 0.0 0.0 0.5
08/22/2013 2603 Beach Advisory 0.3 0.0 0.0 0.0 0.3
08/15/2013 158 Beach Advisory 0.0 0.0 0.9 0.1 0.9
08/08/2013 74 Beach Advisory 0.5 0.0 0.0 0.0 0.5
08/01/2013 10 Acceptable 0.7 0.0 0.0 0.0 0.7
07/25/2013 95 Beach Advisory 0.0 0.0 0.3 0.1 0.4
07/18/2013 10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/11/2013 169 Beach Advisory 0.0 0.0 0.2 0.2 0.5
06/20/2013 94 Beach Advisory 0.0 0.0 0.2 0.0 0.2
06/13/2013 331 Beach Advisory 1.3 0.0 0.1 1.4 2.7
06/06/2013 75 Beach Advisory 0.1 0.0 0.0 0.9 1.0
05/30/2013 145 Beach Advisory 0.0 0.0 0.5 0.0 0.5
05/23/2013 41 Acceptable 1.8 0.0 0.0 0.0 1.8
08/23/2012 318 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/16/2012 10 Acceptable 0.0 0.6 0.0 0.0 0.6
07/26/2012 1789 Beach Advisory 0.6 0.0 0.0 0.2 0.8
07/19/2012 31 Acceptable 0.0 1.8 0.0 0.0 1.8
07/12/2012 121 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/05/2012 145 Beach Advisory 0.0 0.1 0.0 0.0 0.1

Entero Count (fecal indicator) and Rainfall Correlation

136 Samples taken

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 citizen scientists and processed at laboratories that aren't directly affiliated with Riverkeeper, using methods and study designs that are consistent with Riverkeeper's Hudson River and Citizen Testing programs.

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:

This site is the home of the Hoboken Cove Community Boathouse. Site Coordinator: Jon Miller. Site Sponsor: Hoboken Cove Boathouse. These samples are processed by The River Project.

Agencies Responsible:

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

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