Water Quality > Tributary and Waterfront Data > Pocantico River > Briarcliff Manor- Stone Creek Lane

Briarcliff Manor- Stone Creek Lane

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

38 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
10/21/2017228Beach Advisory0.00.00.00.00.0
09/16/2017146Beach Advisory0.00.00.40.00.5
07/15/20174884Beach Advisory0.00.50.40.00.8
06/17/2017792Beach Advisory0.00.20.00.00.2
06/16/2017146Beach Advisory0.00.00.40.00.5
05/20/201750Acceptable0.00.00.00.00.0
10/08/2016435Beach Advisory0.00.00.00.00.0
09/10/20161553Beach Advisory0.00.00.00.00.0
08/13/2016>2420Beach Advisory0.00.40.00.40.8
07/09/2016435Beach Advisory0.00.00.40.00.4
06/11/2016687Beach Advisory0.00.00.00.30.3
05/14/201660Acceptable0.00.20.00.00.2
10/03/20151203Beach Advisory0.40.50.11.32.2
09/05/2015548Beach Advisory0.00.00.00.00.0
08/01/2015649Beach Advisory0.00.00.70.00.7
07/04/201596Beach Advisory0.00.00.00.60.6
06/06/2015285Beach Advisory0.10.00.00.00.1
05/02/20153Acceptable0.00.00.00.00.0
10/04/2014>2420Beach Advisory0.80.00.00.00.8
09/06/2014921Beach Advisory0.10.00.00.00.1
08/02/20142420Beach Advisory0.20.20.00.00.4
07/05/20141120Beach Advisory0.00.11.41.53.0
06/07/2014206Beach Advisory0.00.00.50.20.6
05/03/2014185Beach Advisory0.00.00.31.41.7
10/12/201342Acceptable0.00.00.00.00.0
09/14/2013435Beach Advisory0.00.11.70.01.8
08/10/2013345Beach Advisory0.00.30.10.00.4
07/13/2013980Beach Advisory0.00.10.00.20.4
06/15/2013727Beach Advisory0.00.30.70.01.0
05/04/201324Acceptable0.00.00.00.00.0
10/06/20121120Beach Advisory0.00.01.20.31.5
09/08/2012>2420Beach Advisory1.50.00.00.52.0
08/04/2012921Beach Advisory0.00.00.00.10.1
07/14/2012378Beach Advisory0.10.00.00.00.1
06/02/20121986Beach Advisory0.90.00.00.01.0
05/12/201248Acceptable0.00.00.30.71.0
11/06/201118Acceptable0.00.00.00.00.0
11/04/2010>2420Beach Advisory1.00.00.00.01.0

Entero Count (fecal indicator) and Rainfall Correlation

38 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 trained by Riverkeeper, and processed on the Riverkeeper vessel, according to the 2014 Quality Assurance Project Plan.

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 site is located at the upper end of the watershed, near the Taconic State Parkway.

Agencies Responsible:

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

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