Red Hook (T)- Route 199

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

30 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
10/11/2019 4 Acceptable 0.0 0.0 0.0 0.1 0.1
08/09/2019 5 Acceptable 0.0 0.0 0.5 0.1 0.7
07/12/2019 55 Acceptable 0.0 0.0 0.0 0.0 0.0
06/14/2019 20 Acceptable 0.0 0.2 0.0 0.0 0.2
05/10/2019 5 Acceptable 0.0 0.0 0.0 0.0 0.0
03/07/2019 2 Acceptable 0.0 0.0 0.0 0.4 0.4
02/08/2019 22 Acceptable 0.2 0.1 0.2 0.0 0.5
02/08/2019 22 Acceptable 0.2 0.1 0.2 0.0 0.5
11/09/2018 16 Acceptable 0.0 0.0 0.0 0.3 0.3
10/12/2018 52 Acceptable 0.2 0.0 1.4 0.0 1.6
08/10/2018 816 Beach Advisory 0.5 0.0 0.0 0.9 1.3
07/13/2018 20 Acceptable 0.0 0.0 0.0 0.0 0.0
06/08/2018 3 Acceptable 0.0 0.0 0.0 0.0 0.0
05/12/2018 9 Acceptable 0.1 0.0 0.0 0.0 0.1
10/13/2017 12 Acceptable 0.0 0.0 0.0 0.0 0.1
09/08/2017 17 Acceptable 0.0 0.3 0.7 0.1 1.1
08/11/2017 20 Acceptable 0.0 0.0 0.0 0.1 0.1
07/14/2017 130 Beach Advisory 0.2 0.4 0.8 0.1 1.4
06/09/2017 60 Acceptable 0.0 0.0 0.0 0.6 0.6
05/12/2017 29 Acceptable 0.0 0.0 0.0 0.0 0.0
04/14/2017 8 Acceptable 0.0 0.1 0.0 0.0 0.1
03/10/2017 7 Acceptable 0.0 0.1 0.1 0.0 0.2
02/10/2017 6 Acceptable 0.0 0.3 0.3 0.0 0.5
12/14/2016 61 Beach Advisory 0.0 0.0 0.0 0.0 0.0
11/16/2016 1553 Beach Advisory 1.8 0.0 0.0 0.0 1.8
09/21/2016 23 Acceptable 0.0 0.0 0.8 0.0 0.8
08/19/2016 530 Beach Advisory 0.0 0.1 0.0 0.0 0.1
07/15/2016 241 Beach Advisory 0.0 0.3 0.0 0.0 0.3
06/17/2016 141 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/20/2016 45 Acceptable 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

30 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 just upstream of where the Lakes Kill tributary, a joins the Saw Kill. People swim near this site. Upstream of here, the Saw Kill corridor is mostly forested and agricultural. 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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