Water Quality > Tributary and Waterfront Data > East River > Bronx River- Starlight Park

Bronx River- Starlight Park

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

27 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
10/09/2018 121 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/19/2018 1782 Beach Advisory 0.0 2.0 0.0 0.0 2.0
09/14/2018 96 Beach Advisory 0.0 0.1 0.1 0.0 0.3
08/17/2018 41 Acceptable 0.6 0.0 0.0 0.6 1.2
07/31/2018 135 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/26/2018 443 Beach Advisory 0.0 0.8 0.0 0.1 0.9
06/26/2018 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/25/2018 682 Beach Advisory 0.0 0.0 0.0 0.1 0.1
06/08/2018 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/30/2018 41 Acceptable 0.0 0.0 0.0 0.5 0.5
10/09/2017 1439 Beach Advisory 0.0 0.2 0.0 0.0 0.2
09/27/2017 96 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/15/2017 122 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/26/2017 20 Acceptable 0.0 0.0 0.0 0.0 0.0
08/09/2017 1246 Beach Advisory 0.0 0.0 0.4 0.0 0.4
07/25/2017 24196 Beach Advisory 0.0 0.9 0.1 0.5 1.5
07/20/2017 961 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/26/2017 4786 Beach Advisory 0.0 0.0 1.3 0.0 1.3
06/23/2017 2282 Beach Advisory 0.0 0.0 0.0 0.0 0.1
06/06/2017 3255 Beach Advisory 0.1 0.0 0.1 0.0 0.2
05/10/2017 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
11/03/2016 61 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2016 14136 Beach Advisory 0.0 0.2 0.0 0.0 0.2
08/11/2016 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
08/02/2016 10 Acceptable 0.0 1.0 1.1 0.3 2.3
07/27/2016 <10 Acceptable 0.0 0.0 0.8 0.0 0.8
07/07/2016 20 Acceptable 0.0 0.0 0.6 0.5 1.1

Entero Count (fecal indicator) and Rainfall Correlation

27 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 sample site is at the head of navigation. A boom cuts off the south end of the bronx river and traps floatables released further upstream from entering the East River.

Agencies Responsible:

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

Keep the Hudson River flowing!
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