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

32 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.

Quality Rain, day of (in) Prior Day 2 Days Prior 3 Days Prior Rain 4 Days Total Rain
Sort Sort Sort Sort Sort Sort Sort Sort
10/08/2016 71 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2016 1153 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/13/2016 >2420 Beach Advisory 0.0 0.4 0.0 0.4 0.8
07/09/2016 1553 Beach Advisory 0.0 0.0 0.4 0.0 0.4
06/11/2016 1203 Beach Advisory 0.0 0.0 0.0 0.3 0.3
05/14/2016 44 Acceptable 0.0 0.2 0.0 0.0 0.2
10/03/2015 2420 Beach Advisory 0.4 0.5 0.1 1.3 2.2
09/05/2015 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/01/2015 120 Beach Advisory 0.0 0.0 0.7 0.0 0.7
07/04/2015 435 Beach Advisory 0.0 0.0 0.0 0.6 0.6
06/06/2015 1300 Beach Advisory 0.1 0.0 0.0 0.0 0.1
05/02/2015 11 Acceptable 0.0 0.0 0.0 0.0 0.0
10/04/2014 >2420 Beach Advisory 0.8 0.0 0.0 0.0 0.8
09/06/2014 1986 Beach Advisory 0.1 0.0 0.0 0.0 0.1
08/02/2014 >2420 Beach Advisory 0.2 0.2 0.0 0.0 0.4
07/05/2014 1553 Beach Advisory 0.0 0.1 1.4 1.5 3.0
06/07/2014 73 Beach Advisory 0.0 0.0 0.5 0.2 0.6
05/03/2014 167 Beach Advisory 0.0 0.0 0.3 1.4 1.7
10/12/2013 285 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/14/2013 1046 Beach Advisory 0.0 0.1 1.7 0.0 1.8
08/10/2013 980 Beach Advisory 0.0 0.3 0.1 0.0 0.4
07/13/2013 1300 Beach Advisory 0.0 0.1 0.0 0.2 0.4
06/15/2013 921 Beach Advisory 0.0 0.3 0.7 0.0 1.0
05/04/2013 7 Acceptable 0.0 0.0 0.0 0.0 0.0
10/06/2012 >2420 Beach Advisory 0.0 0.0 1.2 0.3 1.5
09/08/2012 308 Beach Advisory 1.5 0.0 0.0 0.5 2.0
08/04/2012 83 Beach Advisory 0.0 0.0 0.0 0.1 0.1
07/14/2012 361 Beach Advisory 0.1 0.0 0.0 0.0 0.1
06/02/2012 2420 Beach Advisory 0.9 0.0 0.0 0.0 1.0
05/12/2012 60 Acceptable 0.0 0.0 0.3 0.7 1.0
11/06/2011 32 Acceptable 0.0 0.0 0.0 0.0 0.0
06/12/2010 1553 Beach Advisory 0.0 0.0 0.0 0.1 0.1

Entero Count (fecal indicator) and Rainfall Correlation

32 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

2017 Fishermen's Ball
Become a Member