Yonkers- Walsh Road

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

43 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
10/18/2018595Beach Advisory0.
10/04/20183255Beach Advisory0.
09/20/2018759Beach Advisory0.
09/06/2018650Beach Advisory0.
08/23/20181780Beach Advisory0.
08/09/20183076Beach Advisory0.
07/26/20185172Beach Advisory0.
07/12/20181130Beach Advisory0.
06/28/2018>24196Beach Advisory0.
06/14/2018754Beach Advisory0.
05/31/2018644Beach Advisory0.
10/26/2017910Beach Advisory0.
10/12/20172495Beach Advisory0.
09/28/2017281Beach Advisory0.
08/31/2017201Beach Advisory0.
08/03/20175172Beach Advisory0.
07/20/2017187Beach Advisory0.
07/06/2017221Beach Advisory0.
06/22/2017332Beach Advisory0.
06/08/2017158Beach Advisory0.
05/25/201717329Beach Advisory0.
05/11/2017433Beach Advisory0.
10/27/2016240Beach Advisory0.
10/13/2016440Beach Advisory0.
09/29/2016240Beach Advisory0.
09/15/2016570Beach Advisory0.
09/01/201615530Beach Advisory0.
08/18/20166490Beach Advisory0.
08/04/2016390Beach Advisory0.
07/14/20161540Beach Advisory0.
06/30/2016840Beach Advisory0.
06/16/20162100Beach Advisory0.
06/02/2016500Beach Advisory0.
05/19/20161660Beach Advisory0.
10/08/2015393Beach Advisory0.
10/01/201511199Beach Advisory0.
09/24/2015199Beach Advisory0.
09/10/201517329Beach Advisory0.
08/27/2015528Beach Advisory0.
08/13/2015703Beach Advisory0.
07/30/2015888Beach Advisory0.
07/16/2015278Beach Advisory0.

Entero Count (fecal indicator) and Rainfall Correlation

43 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 is the first sampling site located downstream of the channelized former industrial area at the outskirts of downtown Yonkers. This site was sampled by Groundwork Hudson Valley in its 2008-2012 study.

Agencies Responsible:

Westchester County Dept. of Health: 914-813-5000; NYSDEC Region 3: 914-428-2505

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