Water Quality > Tributary and Waterfront Data > New York City Waterfront > Randall’s Island- Bronx Kill, west landing

Randall’s Island- Bronx Kill, west landing

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

81 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
09/28/2017<10Acceptable0.00.00.00.00.0
09/21/201752Acceptable0.00.00.20.00.2
09/14/201785Beach Advisory0.00.10.00.00.1
08/31/201785Beach Advisory0.00.00.30.00.3
08/17/2017131Beach Advisory0.00.00.50.00.5
07/27/2017336Beach Advisory0.00.00.00.70.7
07/20/2017771Beach Advisory0.00.00.00.00.0
07/13/20172987Beach Advisory0.00.00.00.00.0
07/06/201741Acceptable0.00.00.00.50.5
06/29/2017132Beach Advisory0.00.00.20.00.2
06/22/20172064Beach Advisory0.00.00.01.41.4
06/08/201772Beach Advisory0.00.00.10.00.1
06/01/2017<10Acceptable0.00.00.10.10.2
05/25/201785Beach Advisory0.20.00.00.00.2
05/18/20171106Beach Advisory0.00.00.00.00.0
09/29/2016135Beach Advisory0.00.00.20.00.2
09/22/2016199Beach Advisory0.00.00.00.70.7
09/15/201662Beach Advisory0.00.60.00.00.6
09/08/2016226Beach Advisory0.00.00.00.00.0
09/01/201610Acceptable0.50.00.00.00.5
08/25/201641Acceptable0.00.00.00.00.0
08/18/201663Beach Advisory0.00.00.10.00.2
08/11/201610Acceptable0.20.10.00.00.2
08/04/2016231Beach Advisory0.00.00.00.00.0
07/28/2016657Beach Advisory0.00.00.01.01.0
07/21/2016146Beach Advisory0.00.00.00.40.4
07/14/20164611Beach Advisory0.60.00.00.00.6
07/07/2016448Beach Advisory0.00.00.70.51.2
06/30/20161624Beach Advisory0.00.00.10.50.6
06/23/201631Acceptable0.00.00.00.00.0
06/16/201652Acceptable0.20.00.00.00.2
06/09/2016173Beach Advisory0.00.50.00.91.4
06/02/2016487Beach Advisory0.00.00.01.71.7
05/26/2016<10Acceptable0.00.00.20.00.2
05/19/201652Acceptable0.00.00.00.00.0
10/01/201517329Beach Advisory0.11.30.10.01.5
09/24/201510Acceptable0.00.00.00.00.0
09/17/201574Beach Advisory0.00.00.00.00.0
09/10/2015>24196Beach Advisory1.60.00.00.01.6
09/03/201510Acceptable0.00.00.00.00.0
08/27/201531Acceptable0.00.00.00.00.0
08/13/201552Acceptable0.00.01.20.01.2
08/06/201531Acceptable0.00.00.40.00.4
07/30/201541Acceptable2.00.00.00.42.3
07/23/2015305Beach Advisory0.00.30.00.00.3
07/16/2015512Beach Advisory0.00.10.40.00.5
07/09/2015<10Acceptable0.30.00.10.00.4
07/01/20151607Beach Advisory0.40.00.00.30.7
06/25/2015272Beach Advisory0.00.00.00.00.0
06/18/20151076Beach Advisory0.00.00.30.60.8
06/11/2015460Beach Advisory0.00.00.00.10.1
06/04/20151376Beach Advisory0.00.00.40.71.1
05/28/2015201Beach Advisory0.00.10.00.00.1
05/21/2015<10Acceptable0.00.00.00.00.0
10/02/2014528Beach Advisory0.00.00.00.00.0
09/25/2014122Beach Advisory0.30.00.00.00.3
08/28/201463Beach Advisory0.00.00.00.00.0
08/21/201420Acceptable0.40.00.00.00.4
08/14/2014110Beach Advisory0.00.50.20.00.7
08/07/201498Beach Advisory0.00.00.00.00.0
07/31/2014228Beach Advisory0.00.00.00.20.2
07/24/20141223Beach Advisory0.00.20.00.00.2
07/17/20141274Beach Advisory0.00.01.30.51.8
07/10/201463Beach Advisory0.10.40.00.00.5
07/02/201431Acceptable1.00.00.00.01.0
06/26/201463Beach Advisory0.10.10.00.00.2
06/19/2014317Beach Advisory0.20.00.00.00.2
06/12/201463Beach Advisory0.10.00.01.61.7
06/05/2014>24196Beach Advisory0.90.00.10.01.0
05/29/2014233Beach Advisory0.00.00.00.00.0
09/27/20123784Beach Advisory0.10.00.00.00.1
09/13/201263Beach Advisory0.00.00.00.00.0
09/06/2012120Beach Advisory0.00.10.10.00.2
08/30/201263Beach Advisory0.00.00.10.60.8
08/23/201220Acceptable0.00.00.00.00.0
08/16/20122909Beach Advisory0.00.60.00.00.6
08/09/201241Acceptable0.00.00.00.00.0
08/02/2012246Beach Advisory0.00.60.00.00.6
07/19/20124352Beach Advisory0.01.80.00.01.8
07/12/2012203Beach Advisory0.00.00.00.00.0
07/05/2012833Beach Advisory0.00.10.00.00.1

Entero Count (fecal indicator) and Rainfall Correlation

81 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

Agencies Responsible:

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

Tell Congress: NY Needs a Robust, Fully Funded EPA
Become a Member