Water Quality
Water Quality > Tributary and Waterfront Data > Upper Hudson River > Troy – 123rd Street Boat Launch

Troy – 123rd Street Boat Launch

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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

15 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
05/11/2024 2420 Beach Advisory 0.1 0.0 0.0 0.7 0.8
10/21/2023 1011 Beach Advisory 1.3 0.2 0.0 0.0 1.5
09/23/2023 157 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/26/2023 186 Beach Advisory 0.0 0.1 0.3 0.0 0.4
07/15/2023 1733 Beach Advisory 0.0 0.7 0.9 0.0 1.6
06/24/2023 1733 Beach Advisory 0.5 0.0 0.0 0.0 0.5
05/20/2023 36 Acceptable 0.0 0.0 0.0 0.0 0.0
10/22/2022 261 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/24/2022 1300 Beach Advisory 0.0 0.0 1.2 0.0 1.2
08/27/2022 134 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/23/2022 1733 Beach Advisory 0.0 0.4 0.0 0.1 0.4
06/25/2022 479 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/21/2022 47 Acceptable 0.0 0.0 0.3 0.0 0.3
08/01/2021 1553 Beach Advisory 0.0 0.0 0.0 0.4 0.5
05/22/2021 60 Acceptable 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

15 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

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