Water Quality > Tributary and Waterfront Data > East River > Bronx River- Riverside Park boat launch

Bronx River- Riverside Park boat launch

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 233 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/19/2018 1250 Beach Advisory 0.0 2.0 0.0 0.0 2.0
09/14/2018 146 Beach Advisory 0.0 0.1 0.1 0.0 0.3
08/17/2018 31 Acceptable 0.6 0.0 0.0 0.6 1.2
07/31/2018 211 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/26/2018 1,160 Acceptable 0.0 0.8 0.0 0.1 0.9
06/26/2018 41 Acceptable 0.0 0.0 0.0 0.0 0.0
06/25/2018 311 Beach Advisory 0.0 0.0 0.0 0.1 0.1
06/08/2018 20 Acceptable 0.0 0.0 0.0 0.0 0.0
05/30/2018 384 Beach Advisory 0.0 0.0 0.0 0.5 0.5
10/09/2017 990 Beach Advisory 0.0 0.2 0.0 0.0 0.2
09/27/2017 52 Acceptable 0.0 0.0 0.0 0.0 0.0
09/15/2017 52 Acceptable 0.0 0.0 0.0 0.0 0.0
08/26/2017 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/09/2017 75 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 1162 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/26/2017 3300 Beach Advisory 0.0 0.0 1.3 0.0 1.3
06/23/2017 41 Acceptable 0.0 0.0 0.0 0.0 0.1
06/06/2017 31 Acceptable 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 20 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2016 >24196 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 10 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 adjacent to a public access point for boating and kayaking.

Agencies Responsible:

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

Keep the Hudson River flowing!
Become a Member