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

Randall’s Island- Bronx Kill, east 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

69 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
09/28/201741Acceptable0.00.00.00.00.0
09/21/2017399Beach Advisory0.00.00.20.00.2
09/14/20171222Beach Advisory0.00.10.00.00.1
08/31/2017272Beach Advisory0.00.00.30.00.3
08/17/2017226Beach Advisory0.00.00.50.00.5
07/27/20171842Beach Advisory0.00.00.00.70.7
07/20/2017723Beach Advisory0.00.00.00.00.0
07/13/2017933Beach Advisory0.00.00.00.00.0
07/06/2017119Beach Advisory0.00.00.00.50.5
06/29/2017106Beach Advisory0.00.00.20.00.2
06/22/20171127Beach Advisory0.00.00.01.41.4
06/08/2017291Beach Advisory0.00.00.10.00.1
05/25/2017246Beach Advisory0.10.00.00.00.1
05/18/2017<10Acceptable0.00.00.00.00.0
09/29/2016121Beach Advisory0.00.00.20.00.2
09/22/201620Acceptable0.00.00.00.70.7
09/15/2016238Beach Advisory0.00.60.00.00.6
09/08/201641Acceptable0.00.00.00.00.0
09/01/201695Beach Advisory0.50.00.00.00.5
08/25/201641Acceptable0.00.00.00.00.0
08/18/201672Beach Advisory0.00.00.10.00.2
08/11/2016663Beach Advisory0.20.10.00.00.2
08/04/201610Acceptable0.00.00.00.00.0
07/28/2016183Beach Advisory0.00.00.01.01.0
07/21/2016155Beach Advisory0.00.00.00.40.4
07/14/201630Acceptable0.60.00.00.00.6
07/07/2016169Beach Advisory0.00.00.70.51.2
06/30/2016<10Acceptable0.00.00.10.50.6
06/23/201631Acceptable0.00.00.00.00.0
06/16/2016153Beach Advisory0.20.00.00.00.2
06/09/201663Beach Advisory0.00.50.00.91.4
06/02/2016146Beach Advisory0.00.00.01.71.7
05/26/201652Acceptable0.00.00.20.00.2
05/19/201630Acceptable0.00.00.00.00.0
10/01/201586Beach Advisory0.11.30.10.01.5
09/24/2015<10Acceptable0.00.00.00.00.0
09/17/201531Acceptable0.00.00.00.00.0
09/10/2015>24196Beach Advisory1.60.00.00.01.6
09/03/201541Acceptable0.00.00.00.00.0
08/27/201531Acceptable0.00.00.00.00.0
08/13/201520Acceptable0.00.01.20.01.2
08/06/201510Acceptable0.00.00.40.00.4
07/30/201531Acceptable2.00.00.00.42.3
07/23/2015<10Acceptable0.00.30.00.00.3
07/16/2015<10Acceptable0.00.10.40.00.5
07/09/201510Acceptable0.30.00.10.00.4
07/01/20152489Beach Advisory0.40.00.00.30.7
06/25/2015<10Acceptable0.00.00.00.00.0
06/18/201563Beach Advisory0.00.00.30.60.8
06/11/201510Acceptable0.00.00.00.10.1
06/04/201530Acceptable0.00.00.40.71.1
05/28/2015<10Acceptable0.00.10.00.00.1
05/21/201552Acceptable0.00.00.00.00.0
10/02/2014185Beach Advisory0.00.00.00.00.0
09/25/2014246Beach Advisory0.30.00.00.00.3
08/28/2014839Beach Advisory0.00.00.00.00.0
08/21/201452Acceptable0.40.00.00.00.4
08/14/2014246Beach Advisory0.00.50.20.00.7
08/07/201410Acceptable0.00.00.00.00.0
07/31/2014109Beach Advisory0.00.00.00.20.2
07/24/2014216Beach Advisory0.00.20.00.00.2
07/17/2014211Beach Advisory0.00.01.30.51.8
07/10/2014213Beach Advisory0.10.40.00.00.5
07/02/2014<10Acceptable1.00.00.00.01.0
06/26/201415531Beach Advisory0.10.10.00.00.2
06/19/2014132Beach Advisory0.20.00.00.00.2
06/12/2014275Beach Advisory0.10.00.01.61.7
06/05/20141396Beach Advisory0.90.00.10.01.0
05/29/201420Acceptable0.00.00.00.00.0

Entero Count (fecal indicator) and Rainfall Correlation

69 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 public launch, a small kayak dock at the end of a long gangway, is part of the New York City Water Trail. Site Coordinator: Ira Gershonson. These samples are processed by Columbia University/Lamont-Doherty Earth Observatory (Wade McGillis).

Agencies Responsible:

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

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