Water Quality > Tributary and Waterfront Data > Mohawk River > Green Island- Silhouette Boathouse

Green Island- Silhouette Boathouse

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

20 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.

QualityRain, day of (in)Prior Day2 Days Prior3 Days Prior Rain4 Days Total Rain
10/15/20181300Beach Advisory0.
09/17/20181120Beach Advisory0.
08/19/20181733Beach Advisory0.
07/22/2018414Beach Advisory0.
06/18/2018158Beach Advisory0.
10/23/201784Beach Advisory0.
09/17/2017178Beach Advisory0.
08/21/20172420Beach Advisory0.
07/17/20171986Beach Advisory0.
06/17/20171986Beach Advisory0.
05/22/2017112Beach Advisory0.
10/22/2016168Beach Advisory0.
09/19/2016>2420Beach Advisory0.
08/20/2016980Beach Advisory0.
08/02/2016>2420Beach Advisory1.
07/18/2016166Beach Advisory0.
07/05/20161203Beach Advisory0.

Entero Count (fecal indicator) and Rainfall Correlation

20 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 site is in the lower branch of the Mohawk Delta. It is a private boathouse with floating docks used by rowing clubs.

Agencies Responsible:

Albany County Dept. of Health: 518-447-4580; NYSDEC Region 4: 518-357-2068

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