Water Quality > Tributary and Waterfront Data > East River > East River- Hell Gate Bridge

East River- Hell Gate Bridge

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

13 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
07/25/2017 443 Beach Advisory 0.0 0.9 0.1 0.5 1.5
07/20/2017 31 Acceptable 0.0 0.0 0.0 0.0 0.0
06/26/2017 20 Acceptable 0.0 0.0 0.0 0.0 0.1
06/23/2017 20 Acceptable 0.0 0.0 0.0 0.0 0.1
06/06/2017 52 Acceptable 0.1 0.0 0.1 0.0 0.2
05/10/2017 30 Acceptable 0.0 0.0 0.0 0.0 0.0
11/03/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2016 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
08/11/2016 <10 Acceptable 0.0 0.1 0.0 0.0 0.1
08/02/2016 <10 Acceptable 0.0 0.0 0.6 0.2 0.8
07/27/2016 <10 Acceptable 0.0 0.0 0.8 0.0 0.8
07/25/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/07/2016 10 Acceptable 0.0 0.0 0.6 0.5 1.1

Entero Count (fecal indicator) and Rainfall Correlation

13 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:

Situated under Hell Gate Bridge, this site is also sampled by the DEP.

Agencies Responsible:

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

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