Water Quality > Tributary and Waterfront Data > Saw Kill > Red Hook (T)- Aspinwall Road near Linden Acres

Red Hook (T)- Aspinwall Road near Linden Acres

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

34 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
10/08/2021 102 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2021 1 Acceptable 0.0 0.0 0.0 0.0 0.0
08/13/2021 104 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/09/2021 >2419.6 Beach Advisory 0.5 1.6 0.0 0.0 2.2
06/11/2021 7 Acceptable 0.0 0.0 0.0 0.1 0.1
05/14/2021 23 Acceptable 0.0 0.0 0.0 0.0 0.0
04/09/2021 12 Acceptable 0.0 0.0 0.0 0.0 0.0
03/12/2021 25 Acceptable 0.0 0.0 0.0 0.0 0.0
02/12/2021 8 Acceptable 0.0 0.0 0.0 0.0 0.0
10/09/2020 13 Acceptable 0.0 0.0 0.0 0.0 0.0
09/11/2020 78 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/14/2020 47 Acceptable 0.0 0.0 0.0 0.0 0.0
10/11/2019 2 Acceptable 0.0 0.0 0.0 0.1 0.1
09/13/2019 5 Acceptable 0.0 0.2 0.0 0.0 0.2
08/09/2019 47 Acceptable 0.0 0.0 0.5 0.1 0.7
07/12/2019 30 Acceptable 0.0 0.0 0.0 0.0 0.0
06/14/2019 3 Acceptable 0.0 0.2 0.0 0.0 0.2
05/10/2019 36 Acceptable 0.0 0.0 0.0 0.1 0.1
10/12/2018 >2420 Beach Advisory 0.2 0.0 1.4 0.0 1.6
08/10/2018 29 Acceptable 0.5 0.0 0.0 0.9 1.3
07/13/2018 117 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/08/2018 45 Acceptable 0.0 0.0 0.0 0.0 0.0
05/11/2018 1 Acceptable 0.1 0.0 0.0 0.0 0.1
10/13/2017 22 Acceptable 0.0 0.0 0.0 0.0 0.1
09/08/2017 32 Acceptable 0.0 0.3 0.7 0.1 1.1
08/11/2017 75 Beach Advisory 0.4 0.6 0.0 0.0 0.9
07/14/2017 275 Beach Advisory 0.2 0.4 0.8 0.1 1.4
06/09/2017 49 Acceptable 0.0 0.0 0.0 0.6 0.6
05/12/2017 7 Acceptable 0.0 0.0 0.0 0.0 0.0
09/21/2016 9 Acceptable 0.0 0.0 0.8 0.0 0.8
08/19/2016 98 Beach Advisory 0.0 0.1 0.0 0.0 0.1
07/15/2016 258 Beach Advisory 0.0 0.3 0.0 0.0 0.3
06/17/2016 76 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/20/2016 17 Acceptable 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

34 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 located in a wooded area west of the Linden Acres neighborhood of Red Hook. These samples are collected by Saw Kill Watershed Community members and processed by the Bard Water Lab.

Agencies Responsible:

Dutchess County Dept. of Health: 845-486-3400; NYSDEC Region 3: 845-256-3000

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