Water Quality
Water Quality > Tributary and Waterfront Data > New York City Waterfront > Gowanus- Gowanus Canal, 2nd Avenue rain garden

Gowanus- Gowanus Canal, 2nd Avenue rain garden

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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

37 Samples taken

Sample Date [i] Enterococcus Count
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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
10/02/2014 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/25/2014 86 Beach Advisory 0.3 0.0 0.0 0.0 0.3
09/18/2014 1211 Beach Advisory 0.0 0.0 0.4 0.0 0.4
09/11/2014 73 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/04/2014 72 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/28/2014 71 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/21/2014 41 Acceptable 0.4 0.0 0.0 0.0 0.4
08/14/2014 798 Beach Advisory 0.0 0.5 0.2 0.0 0.7
08/07/2014 41 Acceptable 0.0 0.0 0.0 0.0 0.0
07/31/2014 122 Beach Advisory 0.0 0.0 0.0 0.2 0.2
07/24/2014 52 Acceptable 0.0 0.2 0.0 0.0 0.2
07/17/2014 1553 Beach Advisory 0.0 0.0 1.3 0.5 1.8
07/10/2014 689 Beach Advisory 0.0 0.1 0.4 0.0 0.5
07/02/2014 52 Acceptable 1.0 0.0 0.0 0.0 1.0
06/26/2014 98 Beach Advisory 0.1 0.1 0.0 0.0 0.2
06/19/2014 2105 Beach Advisory 0.2 0.0 0.0 0.0 0.2
06/12/2014 435 Beach Advisory 0.1 0.0 0.0 1.6 1.7
06/05/2014 275 Beach Advisory 0.9 0.0 0.1 0.0 1.0
05/29/2014 135 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/22/2014 >24196 Beach Advisory 0.2 0.0 0.0 0.0 0.2
10/03/2013 62 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/26/2013 586 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/19/2013 187 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/12/2013 41 Acceptable 1.6 0.0 0.0 0.0 1.6
09/05/2013 20 Acceptable 0.0 0.0 0.0 0.1 0.1
08/29/2013 96 Beach Advisory 0.0 0.4 0.0 0.0 0.5
08/22/2013 98 Beach Advisory 0.3 0.0 0.0 0.0 0.3
08/08/2013 5475 Beach Advisory 0.5 0.0 0.0 0.0 0.5
07/25/2013 402 Beach Advisory 0.0 0.0 0.3 0.1 0.4
07/18/2013 313 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/11/2013 >24196 Beach Advisory 0.0 0.0 0.2 0.2 0.5
07/02/2013 >24196 Beach Advisory 0.1 0.8 0.0 0.0 0.9
06/27/2013 1553 Beach Advisory 0.2 0.1 0.0 0.0 0.3
06/20/2013 2873 Beach Advisory 0.0 0.0 0.2 0.0 0.2
06/13/2013 2064 Beach Advisory 1.3 0.0 0.1 1.4 2.7
06/06/2013 1153 Beach Advisory 0.1 0.0 0.0 0.9 1.0
05/23/2013 75 Beach Advisory 1.8 0.0 0.0 0.0 1.8

Entero Count (fecal indicator) and Rainfall Correlation

37 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 new concrete dock was purpose-built for the Brooklyn Bridge Park Boathouse's public kayaking and kayak polo programs. Site Coordinator: Josh Vogel. Site Sponsor: Red Hook Boaters. These samples are processed by The River Project.

Agencies Responsible:

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

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