Blauvelt- Spruce Street

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

38 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
10/27/20189208Beach Advisory0.
09/15/2018450Beach Advisory0.
08/18/2018>24196Beach Advisory0.
06/16/2018649Beach Advisory0.
05/19/2018>2420Beach Advisory0.
08/19/20179208Beach Advisory0.
07/15/20176131Beach Advisory0.
06/17/20176488Beach Advisory0.
05/20/2017301Beach Advisory0.
07/09/2016>2420Beach Advisory0.
06/11/20161120Beach Advisory0.
05/14/2016308Beach Advisory0.
10/03/20151553Beach Advisory0.
08/01/2015>2420Beach Advisory0.
07/04/2015921Beach Advisory0.
06/06/2015>2420Beach Advisory0.
05/02/2015140Beach Advisory0.
10/04/2014>2420Beach Advisory0.
09/06/20141203Beach Advisory0.
08/02/2014>2420Beach Advisory0.
07/05/2014>2420Beach Advisory0.
06/07/2014770Beach Advisory0.
05/03/2014112Beach Advisory0.
10/12/2013>2420Beach Advisory0.
09/14/2013>2420Beach Advisory0.
08/10/2013>2420Beach Advisory0.
07/13/2013>2420Beach Advisory0.
06/15/20131120Beach Advisory0.
05/04/201389Beach Advisory0.
10/06/20121203Beach Advisory0.
09/08/2012980Beach Advisory0.
08/04/20122420Beach Advisory0.
07/14/20121300Beach Advisory0.
06/02/2012>2420Beach Advisory0.
05/12/2012205Beach Advisory0.
11/06/201189Beach Advisory0.
09/03/2011158Beach Advisory0.
05/28/20111120Beach Advisory0.

Entero Count (fecal indicator) and Rainfall Correlation

38 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 sampling site is located where the Sparkill Creek transitions from its forested headwaters into predominantly residential land use. Near this sampling point, the stream flows through private yards.

Agencies Responsible:

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

Keep the Hudson River flowing!
Become a Member