Water Quality
Water Quality > Tributary and Waterfront Data > Roeliff Jansen Kill > Ancram- Hall Hill Road Bridge

Ancram- Hall Hill Road Bridge

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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

34 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
10/15/2022 54 Acceptable 0.0 0.0 1.0 0.0 1.0
09/10/2022 23 Acceptable 0.0 0.0 0.0 0.0 0.0
08/13/2022 34 Acceptable 0.0 0.0 0.0 0.0 0.0
10/09/2021 8 Acceptable 0.0 0.0 0.0 0.0 0.0
09/11/2021 28 Acceptable 0.0 0.0 0.1 0.1 0.2
08/14/2021 79 Beach Advisory 0.0 0.0 0.0 0.0 0.1
07/10/2021 56 Acceptable 0.0 1.0 2.1 1.1 4.2
06/12/2021 25 Acceptable 0.1 0.0 0.0 0.0 0.1
05/15/2021 4 Acceptable 0.0 0.0 0.0 0.0 0.0
10/10/2020 17 Acceptable 0.0 0.0 0.0 0.2 0.2
09/12/2020 22 Acceptable 0.0 0.0 0.6 0.0 0.6
08/15/2020 88 Beach Advisory 0.0 0.0 0.0 0.2 0.2
07/11/2020 9 Acceptable 0.1 0.0 0.0 0.0 0.1
10/12/2019 14 Acceptable 0.0 0.0 0.0 0.1 0.1
09/14/2019 6 Acceptable 0.0 0.0 0.7 0.0 0.7
08/10/2019 4 Acceptable 0.0 0.0 0.1 0.8 1.0
07/13/2019 14 Acceptable 0.0 0.0 0.1 0.0 0.1
06/15/2019 12 Acceptable 0.0 0.0 0.3 0.0 0.3
05/11/2019 66 Beach Advisory 0.0 1.0 0.0 0.0 1.0
09/15/2018 19 Acceptable 0.0 0.0 0.0 0.6 0.7
08/11/2018 53 Acceptable 0.8 0.0 0.0 0.5 1.3
07/14/2018 12 Acceptable 0.0 0.0 0.0 0.0 0.0
06/09/2018 7 Acceptable 0.0 0.0 0.0 0.0 0.0
05/12/2018 1 Acceptable 0.2 0.0 0.0 0.0 0.2
10/14/2017 60 Acceptable 0.0 0.0 0.1 0.0 0.2
07/08/2017 91 Beach Advisory 0.0 1.0 0.0 0.0 1.0
06/10/2017 15 Acceptable 0.0 0.0 0.0 0.0 0.0
05/13/2017 11 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2016 33 Acceptable 0.0 0.0 0.1 0.0 0.1
09/17/2016 82 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/20/2016 32 Acceptable 0.0 0.0 0.0 0.0 0.0
07/15/2016 104 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/18/2016 37 Acceptable 0.0 0.0 0.0 0.0 0.0
05/21/2016 25 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:

Two wastewater treatment plant outfalls (both privately owned) are located less than one mile upstream of this sampling site. These samples are collected by Roe Jan watershed residents and processed by the Bard Water Lab. Site photo credit: Kaare Christian.

Agencies Responsible:

Columbia County Dept. of Health: (518) 828-3358; NYSDEC Region 3: 845-256-3000

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