Water Quality > Tributary and Waterfront Data > Pocantico River > Briarcliff Manor- Above Pocantico Lake

Briarcliff Manor- Above Pocantico Lake

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

39 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
10/21/201758Acceptable0.00.00.00.00.0
09/16/2017548Beach Advisory0.00.00.40.00.5
07/15/20172420Beach Advisory0.00.50.40.00.8
06/17/2017203Beach Advisory0.00.20.00.00.2
06/16/2017548Beach Advisory0.00.00.40.00.5
05/20/2017185Beach Advisory0.00.00.00.00.0
10/08/201632Acceptable0.00.00.00.00.0
09/10/20161734Beach Advisory0.00.00.00.00.0
08/13/2016>2420Beach Advisory0.00.40.00.40.8
07/09/2016770Beach Advisory0.00.00.40.00.4
06/11/2016189Beach Advisory0.00.00.00.30.3
05/14/2016132Beach Advisory0.00.20.00.00.2
10/03/2015>2420Beach Advisory0.40.50.11.32.2
09/05/201545Acceptable0.00.00.00.00.0
08/01/2015365Beach Advisory0.00.00.70.00.7
07/04/2015387Beach Advisory0.00.00.00.60.6
06/06/2015816Beach Advisory0.10.00.00.00.1
05/02/20153Acceptable0.00.00.00.00.0
10/04/2014>2420Beach Advisory0.80.00.00.00.8
09/06/2014139Beach Advisory0.10.00.00.00.1
08/02/2014>2420Beach Advisory0.20.20.00.00.4
07/05/2014770Beach Advisory0.00.11.41.53.0
06/07/2014228Beach Advisory0.00.00.50.20.6
05/03/201457Acceptable0.00.00.31.41.7
10/12/2013104Beach Advisory0.00.00.00.00.0
09/14/20132420Beach Advisory0.00.11.70.01.8
08/10/20131120Beach Advisory0.00.30.10.00.4
07/13/2013980Beach Advisory0.00.10.00.20.4
06/15/2013270Beach Advisory0.00.30.70.01.0
05/04/201350Acceptable0.00.00.00.00.0
10/06/2012816Beach Advisory0.00.01.20.31.5
09/08/2012>2420Beach Advisory1.50.00.00.52.0
08/04/20121414Beach Advisory0.00.00.00.10.1
07/14/2012308Beach Advisory0.10.00.00.00.1
06/02/2012>2420Beach Advisory0.90.00.00.01.0
05/12/201280Beach Advisory0.00.00.30.71.0
11/06/201157Acceptable0.00.00.00.00.0
11/04/2010>2420Beach Advisory1.10.00.00.01.1
06/12/201010Acceptable0.00.00.00.10.1

Entero Count (fecal indicator) and Rainfall Correlation

39 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 about one mile north of Pocantico Lake in a low density residential area that includes horse stables.

Agencies Responsible:

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

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