Water Quality
Water Quality > Tributary and Waterfront Data > Saw Kill > Red Hook (T)- Near Recreation Park

Red Hook (T)- Near Recreation Park

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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

38 Samples taken

Sample Date [i] Enterococcus Count
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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
10/14/2023 41 Acceptable 0.0 0.0 0.0 0.0 0.0
07/08/2023 44 Acceptable 0.0 0.1 0.0 0.0 0.1
06/10/2023 41 Acceptable 0.0 0.2 0.1 0.0 0.3
05/20/2023 35 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2022 76 Beach Advisory 0.0 0.0 0.4 1.2 1.6
09/12/2022 1 Acceptable 0.0 0.0 0.0 0.0 0.1
08/12/2022 11 Acceptable 0.0 0.0 0.0 0.0 0.0
07/09/2022 62 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/08/2021 23 Acceptable 0.0 0.0 0.0 0.0 0.0
09/10/2021 4 Acceptable 0.0 0.0 0.0 0.0 0.0
08/13/2021 34 Acceptable 0.0 0.0 0.0 0.0 0.0
07/09/2021 55 Acceptable 0.5 1.6 0.0 0.0 2.2
06/11/2021 33 Acceptable 0.0 0.0 0.0 0.1 0.1
05/14/2021 15 Acceptable 0.0 0.0 0.0 0.0 0.0
04/09/2021 19 Acceptable 0.0 0.0 0.0 0.0 0.0
03/12/2021 4 Acceptable 0.0 0.0 0.0 0.0 0.0
02/12/2021 <1 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 5 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2020 84 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/11/2019 9 Acceptable 0.0 0.0 0.0 0.1 0.1
09/13/2019 14 Acceptable 0.0 0.2 0.0 0.0 0.2
08/09/2019 13 Acceptable 0.0 0.0 0.5 0.1 0.7
07/12/2019 4 Acceptable 0.0 0.0 0.0 0.0 0.0
06/14/2019 72 Beach Advisory 0.0 0.2 0.0 0.0 0.2
05/10/2019 28 Acceptable 0.0 0.0 0.0 0.1 0.1
10/12/2018 46 Acceptable 0.2 0.0 1.4 0.0 1.6
08/10/2018 15 Acceptable 0.5 0.0 0.0 0.9 1.3
07/13/2018 74 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/08/2018 19 Acceptable 0.0 0.0 0.0 0.0 0.0
05/11/2018 3 Acceptable 0.1 0.0 0.0 0.0 0.1
10/13/2017 23 Acceptable 0.0 0.0 0.0 0.0 0.1
09/08/2017 27 Acceptable 0.0 0.3 0.7 0.1 1.1
08/11/2017 32 Acceptable 0.4 0.6 0.0 0.0 0.9
07/14/2017 105 Beach Advisory 0.2 0.4 0.8 0.1 1.4
06/09/2017 69 Beach Advisory 0.0 0.0 0.0 0.6 0.6
05/12/2017 19 Acceptable 0.0 0.0 0.0 0.0 0.0
09/21/2016 8 Acceptable 0.0 0.0 0.8 0.0 0.8

Entero Count (fecal indicator) and Rainfall Correlation

38 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

Agencies Responsible:

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

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