Water Quality
Water Quality > Tributary and Waterfront Data > Saw Mill River > Mount Pleasant- Saw Mill River Road

Mount Pleasant- Saw Mill River Road

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

101 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
10/27/2022 336 Beach Advisory 0.0 0.0 0.1 0.3 0.4
10/27/2022 336 Beach Advisory 0.0 0.0 0.1 0.3 0.4
10/13/2022 121 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/13/2022 121 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2022 108 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2022 108 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/15/2022 439 Beach Advisory 0.0 0.0 0.6 0.2 0.8
09/15/2022 439 Beach Advisory 0.0 0.0 0.6 0.2 0.8
09/01/2022 228 Beach Advisory 0.0 0.0 0.1 0.0 0.1
09/01/2022 228 Beach Advisory 0.0 0.0 0.1 0.0 0.1
08/18/2022 341 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/18/2022 341 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/04/2022 269 Beach Advisory 0.0 0.0 0.0 0.4 0.4
08/04/2022 269 Beach Advisory 0.0 0.0 0.0 0.4 0.4
07/21/2022 763 Beach Advisory 0.0 0.0 0.0 2.3 2.4
07/21/2022 763 Beach Advisory 0.0 0.0 0.0 2.3 2.4
07/07/2022 269 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/07/2022 269 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/23/2022 NS Acceptable 0.0
06/23/2022 NS Acceptable 0.0
06/09/2022 >24196 Beach Advisory 2.0 0.1 0.0 0.0 2.1
06/09/2022 >24196 Beach Advisory 2.0 0.1 0.0 0.0 2.1
05/26/2022 189 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/26/2022 189 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/12/2022 171 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/12/2022 171 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/21/2021 199 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/21/2021 199 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/07/2021 355 Beach Advisory 0.0 0.0 0.0 0.5 0.6
10/07/2021 355 Beach Advisory 0.0 0.0 0.0 0.5 0.6
09/23/2021 350 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/23/2021 350 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/09/2021 7270 Beach Advisory 0.2 0.0 0.0 0.0 0.2
09/09/2021 7270 Beach Advisory 0.2 0.0 0.0 0.0 0.2
08/05/2021 512 Beach Advisory 0.0 0.0 0.0 0.0
08/05/2021 512 Beach Advisory 0.0 0.0 0.0 0.0
07/22/2021 528 Beach Advisory 0.0 0.0 0.0 0.1 0.1
07/22/2021 528 Beach Advisory 0.0 0.0 0.0 0.1 0.1
07/08/2021 638 Beach Advisory 0.0 0.0 0.7 0.0 0.7
07/08/2021 638 Beach Advisory 0.0 0.0 0.7 0.0 0.7
06/24/2021 464 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/24/2021 464 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/10/2021 591 Beach Advisory 0.0 0.0 0.0 0.9 0.9
06/10/2021 591 Beach Advisory 0.0 0.0 0.0 0.9 0.9
05/27/2021 4611 Beach Advisory 0.1 0.0 0.0 0.0 0.1
05/27/2021 4611 Beach Advisory 0.1 0.0 0.0 0.0 0.1
05/13/2021 379 Beach Advisory 0.0 0.0 0.0 0.2 0.2
05/13/2021 379 Beach Advisory 0.0 0.0 0.0 0.2 0.2
10/24/2019 355 Beach Advisory 0.0 0.0 0.2 0.0 0.2
10/24/2019 355 Beach Advisory 0.0 0.0 0.2 0.0 0.2
10/10/2019 1918 Beach Advisory 0.0 0.0 0.1 0.2 0.3
10/10/2019 1918 Beach Advisory 0.0 0.0 0.1 0.2 0.3
09/26/2019 110 Beach Advisory 0.0 0.0 0.1 0.0 0.1
09/12/2019 8664 Beach Advisory 0.1 0.0 0.0 0.0 0.1
08/15/2019 1067 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/01/2019 9804 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/02/2019 231 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/20/2019 404 Beach Advisory 0.0 0.0 1.1 0.0 1.1
06/06/2019 331 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/23/2019 1376 Beach Advisory 0.1 0.0 0.0 0.2 0.3
05/09/2019 95 Beach Advisory 0.0 0.0 0.1 0.0 0.1
10/18/2018 134 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/04/2018 1354 Beach Advisory 0.0 0.0 2.4 0.0 2.4
09/20/2018 528 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/06/2018 158 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/09/2018 1314 Beach Advisory 0.0 0.0 0.6 0.0 0.6
07/26/2018 1515 Beach Advisory 0.0 1.0 0.0 0.6 1.6
07/12/2018 538 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/14/2018 374 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/31/2018 583 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/17/2018 10462 Beach Advisory 0.3 1.0 0.4 0.0 1.6
10/26/2017 2909 Beach Advisory 0.0 0.0 0.4 0.0 0.4
10/12/2017 3169 Beach Advisory 0.1 0.0 0.0 0.2 0.3
09/28/2017 211 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/14/2017 63 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/31/2017 109 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/20/2017 246 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/06/2017 231 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/22/2017 161 Beach Advisory 0.0 0.0 0.0 0.9 0.9
06/08/2017 120 Beach Advisory 0.0 0.0 0.2 0.1 0.3
05/25/2017 1467 Beach Advisory 0.1 0.0 0.0 0.2 0.4
05/11/2017 20 Acceptable 0.0 0.0 0.0 0.0 0.0
10/27/2016 90 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/13/2016 60 Acceptable 0.0 0.0 0.0 0.0 0.0
09/29/2016 160 Beach Advisory 0.0 0.0 0.4 0.0 0.4
09/15/2016 180 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/01/2016 740 Beach Advisory 0.1 0.0 0.0 0.0 0.1
08/18/2016 1160 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/04/2016 240 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/14/2016 1500 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/30/2016 500 Beach Advisory 0.0 0.0 0.3 0.3 0.6
06/16/2016 300 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/02/2016 150 Beach Advisory 0.0 0.0 0.0 0.6 0.6
05/19/2016 140 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/08/2015 161 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/24/2015 213 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2015 19863 Beach Advisory 0.3 0.0 0.0 0.0 0.3
08/27/2015 657 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/13/2015 798 Beach Advisory 0.0 0.0 0.6 0.0 0.6
07/30/2015 754 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/16/2015 536 Beach Advisory 0.0 0.0 0.4 0.0 0.4

Entero Count (fecal indicator) and Rainfall Correlation

101 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 on the property of Rosedale Nurseries. The Saw Mill River?s banks are landscaped throughout the property. Upstream and downstream of this site are other commercial developments, but to the west the watershed is forested. This site was tested by Groundworks Hudson Valley's 2008-2012 study.

Agencies Responsible:

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

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

Stay in Touch and Up To Date