Sparkill- Route 340

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

33 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
10/08/2016>2420Beach Advisory0.
09/10/2016>2420Beach Advisory0.
08/13/2016>2420Beach Advisory0.
07/09/20161986Beach Advisory0.
06/11/20161120Beach Advisory0.
05/14/20161733Beach Advisory0.
10/03/2015>2420Beach Advisory0.
09/05/2015122Beach Advisory0.
08/01/2015>2420Beach Advisory0.
07/04/20151553Beach Advisory0.
06/06/2015>2420Beach Advisory0.
10/04/2014687Beach Advisory0.
09/06/2014727Beach Advisory0.
08/02/2014>2420Beach Advisory0.
07/05/2014>2420Beach Advisory0.
06/07/20141300Beach Advisory0.
05/03/2014219Beach Advisory0.
10/12/2013816Beach Advisory0.
09/14/2013>2420Beach Advisory0.
08/10/2013>2420Beach Advisory0.
07/13/2013>2420Beach Advisory0.
06/15/20132420Beach Advisory0.
05/04/2013299Beach Advisory0.
10/06/2012>2420Beach Advisory0.
09/08/2012>2420Beach Advisory1.
08/04/2012687Beach Advisory0.
07/14/2012>2420Beach Advisory0.
06/02/2012>2420Beach Advisory0.
05/12/2012727Beach Advisory0.
11/06/2011613Beach Advisory0.
09/03/2011387Beach Advisory0.
05/28/2011816Beach Advisory0.

Entero Count (fecal indicator) and Rainfall Correlation

33 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 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 in a town park at the downstream edge of a forested wedge-shaped buffer. There are residential developments on both sides of the Creek, and there is also a golf course nearby.

Agencies Responsible:

Rockland County Dept. of Health: 845-364-2900; NYSDEC Region 3: 914-428-2505

Keep the Hudson River flowing!
Become a Member