Water Quality
Water Quality > Tributary and Waterfront Data > Saw Mill River > Yonkers- Torre Place

Yonkers- Torre Place

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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

82 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
07/27/2023 364 Beach Advisory 0.0 0.0 0.7 0.0 0.7
07/13/2023 583 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/15/2023 3448 Beach Advisory 0.0 0.2 0.0 0.1 0.3
06/01/2023 199 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/27/2022 1012 Beach Advisory 0.0 0.0 0.1 0.5 0.5
10/13/2022 313 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2022 496 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/15/2022 959 Beach Advisory 0.0 0.0 0.6 0.2 0.8
09/01/2022 638 Beach Advisory 0.0 0.0 0.1 0.0 0.1
08/18/2022 504 Beach Advisory 0.0 0.2 0.0 0.0 0.2
08/04/2022 573 Beach Advisory 0.0 0.0 0.0 0.2 0.2
07/21/2022 1296 Beach Advisory 0.0 0.0 0.0 4.8 4.8
07/07/2022 98 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/23/2022 1376 Beach Advisory 0.5 0.1 0.0 0.0 0.6
06/09/2022 >24196 Beach Advisory 3.1 0.1 0.0 0.0 3.2
05/26/2022 464 Beach Advisory 0.0 0.0 0.0 0.2 0.2
05/12/2022 97 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/07/2021 457 Beach Advisory 0.0 0.0 0.2 0.5 0.7
09/23/2021 364 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/09/2021 24196 Beach Advisory 0.4 0.0 0.0 0.0 0.4
08/19/2021 3441 Beach Advisory 0.2 0.0 0.0 0.0 0.2
08/05/2021 315 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/22/2021 565 Beach Advisory 0.0 0.1 0.0 0.0 0.2
07/08/2021 422 Beach Advisory 0.0 0.0 0.3 0.0 0.3
06/24/2021 364 Beach Advisory 0.0 0.0 0.3 0.0 0.3
06/10/2021 1095 Beach Advisory 0.0 0.0 0.8 0.3 1.1
05/27/2021 5794 Beach Advisory 0.1 0.0 0.0 0.0 0.1
05/13/2021 160 Beach Advisory 0.0 0.0 0.0 0.1 0.1
10/24/2019 269 Beach Advisory 0.0 0.2 0.5 0.0 0.7
10/10/2019 836 Beach Advisory 0.0 0.6 0.1 0.8 1.4
09/26/2019 328 Beach Advisory 0.0 0.0 0.0 0.0 0.1
09/12/2019 328 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/15/2019 823 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/01/2019 8664 Beach Advisory 0.0 0.9 0.0 0.0 1.0
07/02/2019 148 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/20/2019 959 Beach Advisory 0.0 0.0 0.3 0.0 0.4
06/06/2019 145 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/23/2019 1935 Beach Advisory 0.1 0.0 0.0 0.2 0.3
05/09/2019 145 Beach Advisory 0.0 0.0 0.1 0.0 0.1
10/18/2018 233 Beach Advisory 0.0 0.0 0.1 0.1 0.1
10/04/2018 5475 Beach Advisory 0.0 0.0 0.8 0.0 0.8
09/20/2018 473 Beach Advisory 0.0 0.0 1.1 0.0 1.1
09/06/2018 160 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/23/2018 2723 Beach Advisory 0.0 1.1 0.0 0.0 1.1
08/09/2018 2098 Beach Advisory 0.4 0.0 0.2 0.0 0.6
07/26/2018 4884 Beach Advisory 0.1 0.8 0.0 0.3 1.2
07/12/2018 441 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/28/2018 >24196 Beach Advisory 0.8 0.0 0.0 0.0 0.8
06/14/2018 341 Beach Advisory 0.0 0.1 0.0 0.0 0.1
05/31/2018 480 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/17/2018 8664 Beach Advisory 0.2 0.6 0.4 0.0 1.2
10/26/2017 657 Beach Advisory 0.0 0.0 0.2 0.0 0.2
10/12/2017 6131 Beach Advisory 0.2 0.0 0.0 0.2 0.4
09/28/2017 120 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/14/2017 181 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/31/2017 110 Beach Advisory 0.0 0.0 0.2 0.0 0.2
08/03/2017 1317 Beach Advisory 0.0 0.3 0.0 0.0 0.3
07/20/2017 160 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/06/2017 383 Beach Advisory 0.0 0.0 0.1 0.0 0.1
06/22/2017 1860 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/08/2017 122 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/25/2017 15531 Beach Advisory 0.4 0.1 0.0 0.5 0.9
05/11/2017 158 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/27/2016 190 Beach Advisory 0.0 0.0 0.0 0.1 0.1
10/13/2016 130 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2016 250 Beach Advisory 0.0 0.0 0.3 0.0 0.3
09/15/2016 320 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/01/2016 13000 Beach Advisory 0.1 0.0 0.0 0.0 0.1
08/18/2016 500 Beach Advisory 0.0 0.1 0.9 0.0 0.9
08/04/2016 140 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/14/2016 3450 Beach Advisory 0.2 0.0 0.0 0.0 0.2
06/30/2016 750 Beach Advisory 0.0 0.0 0.5 0.3 0.8
06/16/2016 400 Beach Advisory 0.1 0.0 0.0 0.0 0.1
06/02/2016 320 Beach Advisory 0.0 0.0 0.0 1.1 1.1
05/19/2016 60 Acceptable 0.0 0.0 0.0 0.0 0.0
10/08/2015 216 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/24/2015 336 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2015 >24196 Beach Advisory 0.9 0.0 0.0 0.0 0.9
08/27/2015 934 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/13/2015 1483 Beach Advisory 0.0 0.0 0.7 0.0 0.7
07/30/2015 1090 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/16/2015 933 Beach Advisory 0.0 0.0 1.5 0.0 1.5

Entero Count (fecal indicator) and Rainfall Correlation

82 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 within the channelized former industrial area at the outskirts of downtown Yonkers.

Agencies Responsible:

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

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