Water Quality > Citizen Testing Data > Saw Mill River > Greenburgh- Rum Brook tributary

Greenburgh- Rum 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

19 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
10/27/2016 40 Acceptable 0.0 0.0 0.0 0.1 0.1
10/13/2016 110 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2016 130 Beach Advisory 0.0 0.0 0.5 0.0 0.5
09/15/2016 2600 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/01/2016 800 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/18/2016 2760 Beach Advisory 0.1 0.1 0.3 0.0 0.5
08/04/2016 290 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/14/2016 6870 Beach Advisory 0.1 0.0 0.0 0.0 0.1
06/30/2016 1480 Beach Advisory 0.0 0.0 0.6 0.4 1.1
06/16/2016 820 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/02/2016 490 Beach Advisory 0.0 0.0 0.0 0.7 0.7
05/19/2016 120 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/08/2015 393 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/24/2015 443 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2015 24196 Beach Advisory 0.3 0.0 0.0 0.0 0.3
08/27/2015 933 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/13/2015 1658 Beach Advisory 0.0 0.1 1.1 0.0 1.2
07/30/2015 1607 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/16/2015 1043 Beach Advisory 0.0 0.0 1.1 0.0 1.1

Entero Count (fecal indicator) and Rainfall Correlation

19 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 and processed at laboratories that aren't directly affiliated with Riverkeeper, using methods and study designs that are consistent with Riverkeeper's Hudson River and Citizen Testing programs.

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:

The Rum Brook drains a mixed land-cover watershed that includes sections of woodland, residential and commercial development, utility right-of-way, and recreational areas including a golf course.

Agencies Responsible:

Westchester County Dept. of Health: 914-813-5000; NYSDEC Region 3: 914-428-2505

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