Tappan- Moturis

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

45 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
10/27/2018988Beach Advisory0.
09/15/2018328Beach Advisory0.
08/18/2018>24196Beach Advisory0.
07/21/2018880Beach Advisory0.
06/16/2018>2420Beach Advisory0.
05/19/2018>2420Beach Advisory0.
10/21/20171918Beach Advisory0.
09/16/2017457Beach Advisory0.
08/19/20177701Beach Advisory0.
07/15/20176131Beach Advisory0.
06/17/20174884Beach Advisory0.
05/20/2017236Beach Advisory0.
10/08/2016>2420Beach Advisory0.
09/10/2016>2420Beach Advisory0.
08/13/2016>2420Beach Advisory0.
07/09/2016>2420Beach Advisory0.
06/11/20162420Beach Advisory0.
05/14/20161733Beach Advisory0.
10/03/2015>2420Beach Advisory0.
09/05/2015649Beach Advisory0.
08/01/2015>2420Beach Advisory0.
07/04/20152420Beach Advisory0.
06/06/2015>2420Beach Advisory0.
10/04/2014>2420Beach Advisory0.
09/06/2014980Beach Advisory0.
08/02/2014>2420Beach Advisory0.
07/05/2014>2420Beach Advisory0.
06/07/20142420Beach Advisory0.
05/03/2014238Beach Advisory0.
10/12/2013866Beach Advisory0.
09/14/2013>2420Beach Advisory0.
08/10/2013>2420Beach Advisory0.
07/13/2013>2420Beach Advisory0.
06/15/20132420Beach Advisory0.
05/04/2013921Beach Advisory0.
10/06/2012>2420Beach Advisory0.
09/08/2012>2420Beach Advisory0.
08/04/20122420Beach Advisory0.
07/14/2012>2420Beach Advisory0.
06/02/2012>24196Beach Advisory0.
05/12/2012867Beach Advisory0.
11/06/20111414Beach Advisory0.
09/03/2011326Beach Advisory0.
05/28/2011816Beach Advisory0.

Entero Count (fecal indicator) and Rainfall Correlation

45 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, adjacent to a dirt bike track, is located just upstream of where Sparkill Creek enters a small forested section west of Route 340, again crossing under the Palisades Interstate Parkway.

Agencies Responsible:

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

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