Water Quality > Tributary and Waterfront Data > Pocantico River > Sleepy Hollow- Below Philipsburg Manor

Sleepy Hollow- Below Philipsburg Manor

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

37 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
09/16/2017638Beach Advisory0.00.00.40.00.5
07/15/2017624Beach Advisory0.00.50.40.00.8
06/17/20171785Beach Advisory0.00.20.00.00.2
06/16/2017638Beach Advisory0.00.00.40.00.5
05/20/2017120Beach Advisory0.00.00.00.00.0
10/08/201671Beach Advisory0.00.00.00.00.0
09/10/20161153Beach Advisory0.00.00.00.00.0
08/13/2016>2420Beach Advisory0.00.40.00.40.8
07/09/20161553Beach Advisory0.00.00.40.00.4
06/11/20161203Beach Advisory0.00.00.00.30.3
05/14/201644Acceptable0.00.20.00.00.2
10/03/20152420Beach Advisory0.40.50.11.32.2
09/05/2015>2420Beach Advisory0.00.00.00.00.0
08/01/2015120Beach Advisory0.00.00.70.00.7
07/04/2015435Beach Advisory0.00.00.00.60.6
06/06/20151300Beach Advisory0.10.00.00.00.1
05/02/201511Acceptable0.00.00.00.00.0
10/04/2014>2420Beach Advisory0.80.00.00.00.8
09/06/20141986Beach Advisory0.10.00.00.00.1
08/02/2014>2420Beach Advisory0.20.20.00.00.4
07/05/20141553Beach Advisory0.00.11.41.53.0
06/07/201473Beach Advisory0.00.00.50.20.6
05/03/2014167Beach Advisory0.00.00.31.41.7
10/12/2013285Beach Advisory0.00.00.00.00.0
09/14/20131046Beach Advisory0.00.11.70.01.8
08/10/2013980Beach Advisory0.00.30.10.00.4
07/13/20131300Beach Advisory0.00.10.00.20.4
06/15/2013921Beach Advisory0.00.30.70.01.0
05/04/20137Acceptable0.00.00.00.00.0
10/06/2012>2420Beach Advisory0.00.01.20.31.5
09/08/2012308Beach Advisory1.50.00.00.52.0
08/04/201283Beach Advisory0.00.00.00.10.1
07/14/2012361Beach Advisory0.10.00.00.00.1
06/02/20122420Beach Advisory0.90.00.00.01.0
05/12/201260Acceptable0.00.00.30.71.0
11/06/201132Acceptable0.00.00.00.00.0
06/12/20101553Beach Advisory0.00.00.00.10.1

Entero Count (fecal indicator) and Rainfall Correlation

37 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 below the pond and dam at Philipsburg Manor Restoration. It is in one of the most densely developed residential areas the Pocantico passes through.

Agencies Responsible:

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

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