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

Pleasantville- Pleasantville Road

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
06/20/2019 428 Beach Advisory 0.0 0.0 1.1 0.0 1.1
06/06/2019 345 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/23/2019 816 Beach Advisory 0.1 0.0 0.0 0.2 0.3
05/09/2019 1223 Beach Advisory 0.0 0.0 0.1 0.0 0.1
10/18/2018 1860 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/04/2018 798 Beach Advisory 0.0 0.0 2.4 0.0 2.4
09/20/2018 638 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/06/2018 323 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/23/2018 1106 Beach Advisory 0.0 0.9 0.0 0.0 0.9
08/09/2018 801 Beach Advisory 0.0 0.3 0.6 0.0 0.9
07/26/2018 1334 Beach Advisory 0.0 0.9 0.0 0.6 1.5
07/12/2018 816 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/28/2018 >24196 Beach Advisory 1.1 0.1 0.0 0.0 1.1
06/14/2018 663 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/31/2018 717 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/26/2017 1968 Beach Advisory 0.0 0.0 0.4 0.0 0.4
10/12/2017 6488 Beach Advisory 0.1 0.0 0.0 0.2 0.3
09/28/2017 266 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/14/2017 464 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/31/2017 281 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/03/2017 771 Beach Advisory 0.0 0.6 0.0 0.0 0.6
07/20/2017 327 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/06/2017 420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/22/2017 650 Beach Advisory 0.0 0.0 0.0 0.9 0.9
06/08/2017 350 Beach Advisory 0.0 0.0 0.2 0.1 0.3
05/25/2017 3255 Beach Advisory 0.1 0.0 0.0 0.2 0.3
05/11/2017 62 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/27/2016 450 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/13/2016 160 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2016 390 Beach Advisory 0.0 0.0 0.5 0.0 0.5
09/15/2016 240 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/01/2016 2210 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/18/2016 1070 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/04/2016 340 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/14/2016 1570 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/30/2016 2720 Beach Advisory 0.0 0.0 0.3 0.3 0.7
06/16/2016 6870 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/02/2016 580 Beach Advisory 0.0 0.0 0.0 0.6 0.6
05/19/2016 1080 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/08/2015 1500 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/24/2015 195 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2015 24196 Beach Advisory 0.2 0.0 0.0 0.0 0.3
08/27/2015 5172 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/13/2015 1145 Beach Advisory 0.0 0.0 0.6 0.0 0.6
07/30/2015 1043 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/16/2015 1012 Beach Advisory 0.0 0.0 0.4 0.0 0.4

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:

The Saw Mill River parallels the Saw Mill River Parkway as it flows toward this sampling location. At the site it enters a tunnel under the parkway. 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

Keep the Hudson River flowing!
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