Water Quality
Water Quality > Tributary and Waterfront Data > Bronx River > Yonkers- Bronx R Pkwy between McLean & Wakefield Aves

Yonkers- Bronx R Pkwy between McLean & Wakefield Aves

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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

43 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
08/24/2023 708 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/10/2023 >2420 Beach Advisory 0.0 0.0 0.0 0.7 0.7
06/15/2023 >2420 Beach Advisory 0.0 0.4 0.0 0.1 0.5
06/01/2023 557 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/18/2023 529 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/20/2022 1467 Beach Advisory 0.0 0.0 0.0 0.1 0.1
09/29/2022 262 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/15/2022 537 Beach Advisory 0.0 0.0 1.8 0.4 2.2
09/01/2022 754 Beach Advisory 0.0 0.0 0.2 0.0 0.2
08/18/2022 41 Acceptable 0.0 0.0 0.0 0.0 0.0
07/21/2022 794 Beach Advisory 0.0 0.0 0.0 3.4 3.4
07/07/2022 187 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/09/2022 19863 Beach Advisory 0.7 0.4 0.0 0.0 1.2
05/26/2022 243 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/28/2021 1723 Beach Advisory 0.0 0.2 3.9 0.6 4.7
09/30/2021 480 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/16/2021 932 Beach Advisory 0.0 0.0 0.0 0.1 0.1
08/05/2021 3654 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/22/2021 336 Beach Advisory 0.0 0.0 0.0 0.0 0.1
07/08/2021 404 Beach Advisory 0.0 0.0 0.3 0.0 0.3
06/24/2021 401 Beach Advisory 0.0 0.0 0.3 0.0 0.3
06/10/2021 521 Beach Advisory 0.0 0.0 0.7 0.4 1.0
10/31/2019 7270 Beach Advisory 0.5 0.1 0.1 0.0 0.7
10/03/2019 17329 Beach Advisory 0.3 0.2 0.0 0.0 0.5
09/05/2019 417 Beach Advisory 0.0 0.0 0.0 0.4 0.4
08/08/2019 581 Beach Advisory 0.0 0.6 0.0 0.0 0.6
07/25/2019 605 Beach Advisory 0.0 0.0 0.9 1.9 2.8
07/11/2019 171 Beach Advisory 0.0 0.0 0.0 0.1 0.1
06/27/2019 563 Beach Advisory 0.0 0.0 0.5 0.0 0.5
05/16/2019 185 Beach Advisory 0.1 0.1 0.2 0.9 1.3
09/27/2018 6867 Beach Advisory 0.0 0.4 2.1 0.0 2.6
08/30/2018 961 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/16/2018 397 Beach Advisory 0.0 0.0 0.0 0.9 0.9
08/02/2018 722 Beach Advisory 0.0 0.6 0.0 0.0 0.6
07/05/2018 285 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/21/2018 9208 Beach Advisory 0.5 0.0 0.1 0.3 0.8
06/07/2018 279 Beach Advisory 0.0 0.0 0.0 0.5 0.5
05/24/2018 169 Beach Advisory 0.0 0.2 0.3 0.0 0.5
09/07/2017 1576 Beach Advisory 0.0 0.1 0.1 0.0 0.3
08/10/2017 97 Beach Advisory 0.0 0.0 0.0 0.8 0.8
07/13/2017 183 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/15/2017 74 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/18/2017 300 Beach Advisory 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

43 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

Agencies Responsible:

Westchester County Dept. of Health: 914-813-5000; NYSDEC Region 3: 914-428-2505

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