Ilion boat launch

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

46 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
10/15/2023 77 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/17/2023 192 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/20/2023 921 Beach Advisory 0.0 0.0 0.7 0.0 0.7
07/06/2023 73 Beach Advisory 0.0 0.0 0.1 0.0 0.1
06/07/2023 548 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/22/2023 15 Acceptable 0.0 0.0 0.1 0.0 0.1
10/16/2022 11 Acceptable 0.0 0.0 0.0 0.0 0.0
09/18/2022 10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/21/2022 18 Acceptable 0.0 0.0 0.0 0.0 0.0
07/10/2022 19 Acceptable 0.0 0.0 0.0 0.0 0.0
06/12/2022 1733 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/24/2022 132 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/24/2021 86 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/26/2021 107 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/29/2021 173 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/31/2021 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/16/2021 2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/24/2021 4 Acceptable 0.0 0.0 0.0 0.0 0.0
10/25/2020 17 Acceptable 0.0 0.0 0.0 0.0 0.0
09/20/2020 <1 Acceptable 0.0 0.0 0.0 0.0 0.0
08/16/2020 137 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/17/2020 >2420 Beach Advisory 0.3 0.3 0.0 0.3 0.9
06/23/2020 107 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/01/2020 1986 Beach Advisory 0.0 0.0 0.0 0.1 0.1
10/13/2019 517 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/15/2019 866 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/11/2019 91 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/14/2019 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/10/2019 17 Acceptable 0.0 0.0 0.0 0.0 0.0
05/14/2019 >2420 Beach Advisory 0.2 0.6 0.4 0.0 1.1
10/15/2018 1300 Beach Advisory 0.0 0.0 0.1 0.0 0.1
09/17/2018 54 Acceptable 0.0 0.0 0.0 0.0 0.0
06/18/2018 461 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/18/2018 35 Acceptable 0.0 0.0 0.0 0.1 0.1
10/22/2017 11 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2017 7 Acceptable 0.0 0.0 0.0 0.0 0.1
08/21/2017 1986 Beach Advisory 0.0 0.0 0.0 0.3 0.4
07/17/2017 >2420 Beach Advisory 0.0 0.0 0.0 0.1 0.1
06/17/2017 >2420 Beach Advisory 0.0 0.3 0.0 0.0 0.3
05/22/2017 >2420 Beach Advisory 0.3 0.0 0.0 0.0 0.3
10/23/2016 1553 Beach Advisory 0.0 0.5 0.0 0.5 1.1
09/18/2016 50 Acceptable 0.1 0.0 0.0 0.0 0.1
08/20/2016 78 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/18/2016 921 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/20/2016 <1 Acceptable 0.0 0.0 0.0 0.0 0.0
05/25/2016 <1 Acceptable 0.0 0.0 0.0 0.1 0.1

Entero Count (fecal indicator) and Rainfall Correlation

46 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:

Site of a public trailered boat launch at the Ilion Marina.

Agencies Responsible:

NYS Dept. of Health, Herkimer District Office: 315-866-6879; NYSDEC Region 6: 315-785-2239

Tell Gov. Hochul to block invasive species at the Erie and Champlain canals
Become a Member