Water Quality > Tributary and Waterfront Data > Saw Mill River > Pleasantville- Pleasantville Road

Pleasantville- Pleasantville 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

42 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
10/18/20181860Beach Advisory0.
10/04/2018798Beach Advisory0.
09/20/2018638Beach Advisory0.
09/06/2018323Beach Advisory0.
08/23/20181106Beach Advisory0.
08/09/2018801Beach Advisory0.
07/26/20181334Beach Advisory0.
07/12/2018816Beach Advisory0.
06/28/2018>24196Beach Advisory1.
06/14/2018663Beach Advisory0.
05/31/2018717Beach Advisory0.
10/26/20171968Beach Advisory0.
10/12/20176488Beach Advisory0.
09/28/2017266Beach Advisory0.
09/14/2017464Beach Advisory0.
08/31/2017281Beach Advisory0.
08/03/2017771Beach Advisory0.
07/20/2017327Beach Advisory0.
07/06/2017420Beach Advisory0.
06/22/2017650Beach Advisory0.
06/08/2017350Beach Advisory0.
05/25/20173255Beach Advisory0.
05/11/201762Beach Advisory0.
10/27/2016450Beach Advisory0.
10/13/2016160Beach Advisory0.
09/29/2016390Beach Advisory0.
09/15/2016240Beach Advisory0.
09/01/20162210Beach Advisory0.
08/18/20161070Beach Advisory0.
08/04/2016340Beach Advisory0.
07/14/20161570Beach Advisory0.
06/30/20162720Beach Advisory0.
06/16/20166870Beach Advisory0.
06/02/2016580Beach Advisory0.
05/19/20161080Beach Advisory0.
10/08/20151500Beach Advisory0.
09/24/2015195Beach Advisory0.
09/10/201524196Beach Advisory0.
08/27/20155172Beach Advisory0.
08/13/20151145Beach Advisory0.
07/30/20151043Beach Advisory0.
07/16/20151012Beach Advisory0.

Entero Count (fecal indicator) and Rainfall Correlation

42 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:

The Saw Mill River parallels the Saw Mill River Parkway as it flows toward this sampling location. At the site it enters a tunnel under the parkway. This site was tested by Groundworks Hudson Valley's 2008-2012 study.

Agencies Responsible:

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

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