Water Quality > Tributary and Waterfront Data > New York City Waterfront > Gowanus- Gowanus Canal, 2nd Street boat launch

Gowanus- Gowanus Canal, 2nd Street 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

73 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.

QualityRain, day of (in)Prior Day2 Days Prior3 Days Prior Rain4 Days Total Rain
SortSortSortSortSortSortSortSort
10/01/20151267Beach Advisory0.11.30.10.01.5
09/24/20151439Beach Advisory0.00.00.00.00.0
09/17/201510Acceptable0.00.00.00.00.0
09/10/20151274Beach Advisory1.60.00.00.01.6
09/03/201520Acceptable0.00.00.00.00.0
08/20/2015448Beach Advisory0.00.00.30.00.3
08/13/2015794Beach Advisory0.00.01.20.01.2
07/30/2015520Beach Advisory2.00.00.00.42.3
07/23/201574Beach Advisory0.00.30.00.00.3
07/16/201519863Beach Advisory0.00.10.40.00.5
06/25/201597Beach Advisory0.00.00.00.00.0
06/18/2015301Beach Advisory0.00.00.30.60.8
06/11/2015246Beach Advisory0.00.00.00.10.1
06/04/2015281Beach Advisory0.00.00.40.71.1
05/28/201510Acceptable0.00.10.00.00.1
05/21/201520Acceptable0.00.00.00.00.0
10/02/201410Acceptable0.00.00.00.00.0
09/25/201410Acceptable0.30.00.00.00.3
09/18/201498Beach Advisory0.00.00.40.00.4
09/11/201475Beach Advisory0.00.00.00.00.0
09/04/201420Acceptable0.00.00.00.00.0
08/28/201452Acceptable0.00.00.00.00.0
08/21/2014<10Acceptable0.40.00.00.00.4
08/14/2014158Beach Advisory0.00.50.20.00.7
08/07/201475Beach Advisory0.00.00.00.00.0
07/31/201452Acceptable0.00.00.00.20.2
07/24/2014122Beach Advisory0.00.20.00.00.2
07/17/2014987Beach Advisory0.00.01.30.51.8
07/10/2014624Beach Advisory0.10.40.00.00.5
07/02/2014<10Acceptable1.00.00.00.01.0
06/26/201452Acceptable0.10.10.00.00.2
06/19/2014341Beach Advisory0.20.00.00.00.2
06/12/2014171Beach Advisory0.10.00.01.61.7
06/05/201496Beach Advisory0.90.00.10.01.0
05/29/2014160Beach Advisory0.00.00.00.00.0
05/22/2014>24196Beach Advisory0.20.00.00.00.2
10/03/201320Acceptable0.00.00.00.00.0
09/26/2013727Beach Advisory0.00.00.00.00.0
09/19/201386Beach Advisory0.00.00.00.00.0
09/12/201352Acceptable1.60.00.00.01.6
09/05/201331Acceptable0.00.00.00.10.1
08/29/201373Beach Advisory0.00.40.00.00.5
08/22/2013512Beach Advisory0.30.00.00.00.3
08/15/20132382Beach Advisory0.00.00.90.10.9
08/08/20132987Beach Advisory0.50.00.00.00.5
08/01/201375Beach Advisory0.70.00.00.00.7
07/25/2013238Beach Advisory0.00.00.30.10.4
07/18/20131198Beach Advisory0.00.00.00.00.0
07/11/2013>24196Beach Advisory0.00.00.20.20.5
07/02/2013>24196Beach Advisory0.10.80.00.00.9
06/27/20131281Beach Advisory0.20.10.00.00.3
06/20/20136131Beach Advisory0.00.00.20.00.2
06/13/20133654Beach Advisory1.30.00.11.42.7
06/06/20131124Beach Advisory0.10.00.00.91.0
05/30/201311199Beach Advisory0.00.00.50.00.5
05/23/2013173Beach Advisory1.80.00.00.01.8
09/27/201274Beach Advisory0.10.00.00.00.1
09/20/20122481Beach Advisory0.00.01.50.01.5
09/13/2012203Beach Advisory0.00.00.00.00.0
09/06/2012238Beach Advisory0.00.10.10.00.2
08/23/2012110Beach Advisory0.00.00.00.00.0
08/16/2012>24196Beach Advisory0.00.60.00.00.6
08/09/2012323Beach Advisory0.00.00.00.00.0
08/02/20125794Beach Advisory0.00.60.00.00.6
07/26/201252Acceptable0.60.00.00.20.8
07/19/2012173Beach Advisory0.01.80.00.01.8
07/12/201241Acceptable0.00.00.00.00.0
07/05/20121722Beach Advisory0.00.10.00.00.1
06/21/2012<10Acceptable0.00.00.00.00.0
06/14/20124106Beach Advisory0.00.31.00.01.4
05/31/2012816Beach Advisory0.00.00.20.00.2
05/24/201210Acceptable1.00.00.21.42.6
05/17/2012391Beach Advisory0.00.10.50.00.6

Entero Count (fecal indicator) and Rainfall Correlation

73 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 marina is the home base of the Empire Dragon Boat Team NYC. There are major CSO outfalls at this location. Site coordinator: Josephine Pho. Site sponsor: Empire Dragon Boat Team NYC. These samples are processed by Queens College (Gregory O'Mullan).

Agencies Responsible:

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

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