Water Quality > Tributary and Waterfront Data > Sparkill Creek > Rockleigh, NJ- Sparkill Brook tributary

Rockleigh, NJ- Sparkill Brook tributary

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

34 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
05/20/2017 315 Beach Advisory 0.0 0.1 0.0 0.0 0.2
10/08/2016 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2016 >2420 Beach Advisory 0.0 0.2 0.0 0.0 0.3
08/13/2016 >2420 Beach Advisory 0.0 0.6 0.1 0.1 0.8
07/09/2016 1986 Beach Advisory 0.0 0.0 0.4 0.0 0.4
06/11/2016 1986 Beach Advisory 0.0 0.0 0.0 0.3 0.3
05/14/2016 1986 Beach Advisory 0.0 0.2 0.0 0.0 0.2
10/03/2015 >2420 Beach Advisory 0.2 0.2 0.1 1.2 1.8
09/05/2015 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/01/2015 1203 Beach Advisory 0.0 0.0 1.5 0.0 1.5
07/04/2015 1414 Beach Advisory 0.0 0.0 0.0 1.1 1.1
06/06/2015 >2420 Beach Advisory 0.4 0.0 0.0 0.0 0.4
05/02/2015 31 Acceptable 0.0 0.0 0.0 0.0 0.0
10/04/2014 >2420 Beach Advisory 0.1 0.0 0.0 0.0 0.1
09/06/2014 1733 Beach Advisory 0.9 0.0 0.0 0.0 0.9
08/02/2014 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/05/2014 2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/07/2014 1986 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/03/2014 141 Beach Advisory 0.0 0.0 0.4 3.0 3.4
10/12/2013 197 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/14/2013 >2420 Beach Advisory 0.0 2.1 2.0 0.0 4.2
08/10/2013 >2420 Beach Advisory 0.1 0.6 0.3 0.0 0.9
07/13/2013 1986 Beach Advisory 0.3 0.1 0.1 0.1 0.6
06/15/2013 1553 Beach Advisory 0.0 0.6 0.6 0.1 1.3
05/04/2013 50 Acceptable 0.0 0.0 0.0 0.0 0.0
10/06/2012 1300 Beach Advisory 0.0 0.0 1.0 0.4 1.4
09/08/2012 1733 Beach Advisory 1.0 0.0 0.1 0.4 1.5
08/04/2012 1733 Beach Advisory 0.0 0.0 0.0 0.1 0.1
07/14/2012 866 Beach Advisory 0.1 0.0 0.0 0.0 0.1
06/02/2012 >2420 Beach Advisory 0.7 0.0 0.0 0.0 0.7
05/12/2012 162 Beach Advisory 0.0 0.4 0.3 0.2 0.9
11/06/2011 148 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/03/2011 548 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/28/2011 349 Beach Advisory 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

34 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 subtributary site is located on the Sparkill Brook, a tributary of Sparkill Creek that drains commercial areas and a golf course in New Jersey before entering New York and joining Sparkill Creek.

Agencies Responsible:

NJDEP

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