Water Quality > Citizen Testing Data > Saw Mill River > New Castle- Duck Pond spillway

New Castle- Duck Pond spillway

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 30 Acceptable 0.0 0.0 0.0 0.0 0.0
10/13/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/29/2016 30 Acceptable 0.0 0.0 0.4 0.0 0.4
09/15/2016 140 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/01/2016 170 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/18/2016 <10 Acceptable 0.0 0.0 0.4 0.0 0.4
08/04/2016 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/14/2016 60 Acceptable 0.0 0.0 0.0 0.0 0.0
06/30/2016 250 Beach Advisory 0.0 0.0 0.3 0.3 0.7
06/16/2016 10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/02/2016 20 Acceptable 0.0 0.0 0.0 0.6 0.6
05/19/2016 20 Acceptable 0.0 0.0 0.0 0.0 0.0
10/08/2015 41 Acceptable 0.0 0.0 0.0 0.0 0.0
09/24/2015 84 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2015 269 Beach Advisory 0.2 0.0 0.0 0.0 0.2
08/27/2015 1852 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/13/2015 239 Beach Advisory 0.0 0.0 0.6 0.0 0.6
07/30/2015 1437 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/16/2015 149 Beach Advisory 0.0 0.0 0.4 0.0 0.4

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:

This sampling site is located below the spillway of Duck Pond. This site is located below the spillway of Duck Pond. The area around Duck Pond is residential, but quite sparsely developed.

Agencies Responsible:

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

2017 Fishermen's Ball
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