Water Quality > Citizen Testing Data > Saw Mill River > Elmsford- Above Mine Brook

Elmsford- Above Mine Brook

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

18 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 30 Acceptable 0.0 0.0 0.0 0.1 0.2
10/13/2016 100 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2016 220 Beach Advisory 0.0 0.0 0.5 0.0 0.5
09/15/2016 390 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/01/2016 1410 Beach Advisory 0.1 0.0 0.0 0.0 0.1
08/18/2016 1530 Beach Advisory 0.1 0.1 0.3 0.0 0.5
08/04/2016 310 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/14/2016 1470 Beach Advisory 0.1 0.0 0.0 0.0 0.1
06/30/2016 530 Beach Advisory 0.0 0.0 0.6 0.4 1.1
06/16/2016 680 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/02/2016 220 Beach Advisory 0.0 0.0 0.0 0.7 0.7
05/19/2016 50 Acceptable 0.0 0.0 0.0 0.0 0.0
10/08/2015 203 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/24/2015 328 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2015 9208 Beach Advisory 0.3 0.0 0.0 0.0 0.3
08/27/2015 569 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/13/2015 759 Beach Advisory 0.0 0.1 1.1 0.0 1.2
07/16/2015 581 Beach Advisory 0.0 0.0 1.1 0.0 1.1

Entero Count (fecal indicator) and Rainfall Correlation

18 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:

In this area, the Saw Mill River runs through an office park, although it is buffered by a narrow corridor of vegetation. This site was tested by Groundworks Hudson Valley's 2008-2012 study.

Agencies Responsible:

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

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