Water Quality > Tributary and Waterfront Data > Quassaick Creek > New Windsor- Silver Stream above Lake Washington res

New Windsor- Silver Stream above Lake Washington res

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
10/15/2015 440 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/01/2015 1300 Beach Advisory 0.0 2.3 0.2 0.0 2.5
09/17/2015 1100 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/03/2015 150 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/20/2015 370 Beach Advisory 0.0 0.0 2.3 0.0 2.3
08/06/2015 30 Acceptable 0.0 0.0 0.0 0.0 0.0
07/23/2015 2600 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/09/2015 600 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/25/2015 500 Beach Advisory 0.0 0.0 0.1 0.0 0.1
06/11/2015 56 Acceptable 0.0 0.0 0.6 0.4 1.0
05/28/2015 1300 Beach Advisory 0.0 0.1 0.0 0.0 0.1
05/14/2015 360 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/16/2014 >2420 Beach Advisory 1.2 0.3 0.0 0.0 1.5
10/02/2014 55 Acceptable 0.0 0.0 0.0 0.0 0.0
09/18/2014 210 Beach Advisory 0.0 0.0 0.2 0.0 0.2
09/09/2014 420 Beach Advisory 0.0 0.0 0.1 0.5 0.7
08/21/2014 >2420 Beach Advisory 0.1 0.0 0.0 0.0 0.1
08/07/2014 1300 Beach Advisory 0.0 0.2 0.2 0.0 0.4

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:

Silver Stream is a feeder stream for Washington Lake, which provides drinking water for the City of Newburgh.

Agencies Responsible:

Orange County Dept. of Health: 845-291-2331; NYSDEC Region 3: 845-256-3000

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