Water Quality > Citizen Testing 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

55 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.

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
09/29/2016 121 Beach Advisory 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 238 Beach Advisory 0.0 0.6 0.0 0.0 0.6
09/08/2016 41 Acceptable 0.0 0.0 0.0 0.0 0.0
09/01/2016 95 Beach Advisory 0.5 0.0 0.0 0.0 0.5
08/25/2016 41 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2016 72 Beach Advisory 0.0 0.0 0.1 0.0 0.2
08/11/2016 663 Beach Advisory 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 183 Beach Advisory 0.0 0.0 0.0 1.0 1.0
07/21/2016 155 Beach Advisory 0.0 0.0 0.0 0.4 0.4
07/14/2016 30 Acceptable 0.6 0.0 0.0 0.0 0.6
07/07/2016 169 Beach Advisory 0.0 0.0 0.7 0.5 1.2
06/30/2016 <10 Acceptable 0.0 0.0 0.1 0.5 0.6
06/23/2016 31 Acceptable 0.0 0.0 0.0 0.0 0.0
06/16/2016 153 Beach Advisory 0.2 0.0 0.0 0.0 0.2
06/09/2016 63 Beach Advisory 0.0 0.5 0.0 0.9 1.4
06/02/2016 146 Beach Advisory 0.0 0.0 0.0 1.7 1.7
05/26/2016 52 Acceptable 0.0 0.0 0.2 0.0 0.2
05/19/2016 30 Acceptable 0.0 0.0 0.0 0.0 0.0
10/01/2015 86 Beach Advisory 0.1 1.3 0.1 0.0 1.5
09/24/2015 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2015 31 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2015 >24196 Beach Advisory 1.6 0.0 0.0 0.0 1.6
09/03/2015 41 Acceptable 0.0 0.0 0.0 0.0 0.0
08/27/2015 31 Acceptable 0.0 0.0 0.0 0.0 0.0
08/13/2015 20 Acceptable 0.0 0.0 1.2 0.0 1.2
08/06/2015 10 Acceptable 0.0 0.0 0.4 0.0 0.4
07/30/2015 31 Acceptable 2.0 0.0 0.0 0.4 2.3
07/23/2015 <10 Acceptable 0.0 0.3 0.0 0.0 0.3
07/16/2015 <10 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 2489 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 63 Beach Advisory 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 30 Acceptable 0.0 0.0 0.4 0.7 1.1
05/28/2015 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
05/21/2015 52 Acceptable 0.0 0.0 0.0 0.0 0.0
10/02/2014 185 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/25/2014 246 Beach Advisory 0.3 0.0 0.0 0.0 0.3
08/28/2014 839 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/21/2014 52 Acceptable 0.4 0.0 0.0 0.0 0.4
08/14/2014 246 Beach Advisory 0.0 0.5 0.2 0.0 0.7
08/07/2014 10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/31/2014 109 Beach Advisory 0.0 0.0 0.0 0.2 0.2
07/24/2014 216 Beach Advisory 0.0 0.2 0.0 0.0 0.2
07/17/2014 211 Beach Advisory 0.0 0.0 1.3 0.5 1.8
07/10/2014 213 Beach Advisory 0.1 0.4 0.0 0.0 0.5
07/02/2014 <10 Acceptable 1.0 0.0 0.0 0.0 1.0
06/26/2014 15531 Beach Advisory 0.1 0.1 0.0 0.0 0.2
06/19/2014 132 Beach Advisory 0.2 0.0 0.0 0.0 0.2
06/12/2014 275 Beach Advisory 0.1 0.0 0.0 1.6 1.7
06/05/2014 1396 Beach Advisory 0.9 0.0 0.1 0.0 1.0
05/29/2014 20 Acceptable 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

55 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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