Water Quality
Water Quality > Tributary and Waterfront Data > Roeliff Jansen Kill > Copake- Roeliff Jansen Park stream access

Copake- Roeliff Jansen Park stream access

close

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

36 Samples taken

Sample Date [i] Enterococcus Count
close

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 134 Beach Advisory 0.0 0.0 1.0 0.0 1.0
09/10/2022 28 Acceptable 0.0 0.0 0.0 0.0 0.0
08/13/2022 35 Acceptable 0.0 0.0 0.0 0.0 0.0
07/09/2022 31 Acceptable 0.0 0.0 0.0 0.3 0.3
10/09/2021 60 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2021 488 Beach Advisory 0.0 0.0 0.0 0.0 0.1
07/10/2021 39 Acceptable 0.0 1.0 2.1 1.1 4.2
06/12/2021 12 Acceptable 0.1 0.0 0.0 0.0 0.1
10/10/2020 140 Beach Advisory 0.0 0.0 0.0 0.2 0.2
09/12/2020 16 Acceptable 0.0 0.0 0.6 0.0 0.6
08/15/2020 66 Beach Advisory 0.0 0.0 0.0 0.2 0.2
07/11/2020 34 Acceptable 0.1 0.0 0.0 0.0 0.1
10/12/2019 7 Acceptable 0.0 0.0 0.0 0.1 0.1
09/14/2019 35 Acceptable 0.0 0.0 0.7 0.0 0.7
08/10/2019 19 Acceptable 0.0 0.0 0.1 0.8 1.0
07/13/2019 77 Beach Advisory 0.0 0.0 0.1 0.0 0.1
06/15/2019 64 Beach Advisory 0.0 0.0 0.3 0.0 0.3
05/11/2019 333 Beach Advisory 0.0 1.0 0.0 0.0 1.0
10/13/2018 26 Acceptable 0.1 0.0 1.7 0.0 1.8
09/15/2018 77 Beach Advisory 0.0 0.0 0.0 0.6 0.7
08/11/2018 18 Acceptable 0.8 0.0 0.0 0.5 1.3
07/14/2018 38 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 143 Beach Advisory 0.2 0.0 0.0 0.0 0.2
10/14/2017 24 Acceptable 0.0 0.0 0.1 0.0 0.2
09/09/2017 31 Acceptable 0.0 0.0 0.6 0.7 1.2
08/12/2017 2420 Beach Advisory 0.3 0.0 0.0 0.0 0.3
07/08/2017 50 Acceptable 0.0 1.0 0.0 0.0 1.0
06/10/2017 7 Acceptable 0.0 0.0 0.0 0.0 0.0
05/13/2017 46 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2016 25 Acceptable 0.0 0.0 0.1 0.0 0.1
09/17/2016 40 Acceptable 0.0 0.0 0.0 0.0 0.0
08/20/2016 49 Acceptable 0.0 0.0 0.0 0.0 0.0
07/15/2016 30 Acceptable 0.0 0.0 0.0 0.0 0.0
06/18/2016 44 Acceptable 0.0 0.0 0.0 0.0 0.0
05/21/2016 21 Acceptable 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

36 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 sampling site is located in an area where NYS DEC and the Columbia County DOH have noted water quality impacts due to septic systems since at least 1993. 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

Don't let New York State give up on New York City waters
Become a Member

Stay in Touch and Up To Date