Water Quality > Tributary and Waterfront Data > Saw Mill River > Yonkers Paddling and Rowing Club

Yonkers Paddling and Rowing Club

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

109 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.

QualityRain, day of (in)Prior Day2 Days Prior3 Days Prior Rain4 Days Total Rain
SortSortSortSortSortSortSortSort
09/28/2017109Beach Advisory0.00.00.00.00.0
09/14/2017703Beach Advisory0.00.00.00.00.0
08/03/201763Beach Advisory0.00.30.00.00.3
07/20/201720Acceptable0.00.00.00.00.0
06/22/201796Beach Advisory0.00.00.00.00.0
06/08/201763Beach Advisory0.00.00.00.00.0
05/11/201741Acceptable0.00.00.00.00.0
10/27/2016150Beach Advisory0.00.00.00.10.1
10/13/2016<10Acceptable0.00.00.00.00.0
09/29/2016190Beach Advisory0.00.00.30.00.3
09/22/201610Acceptable0.00.00.00.50.5
09/15/2016150Beach Advisory0.00.00.00.00.0
09/08/201610Acceptable0.00.00.00.00.0
09/01/20161840Beach Advisory0.10.00.00.00.1
09/01/201660Acceptable0.10.00.00.00.1
08/25/2016<10Acceptable0.00.00.00.00.0
08/18/201660Acceptable0.00.10.90.00.9
08/11/201684Beach Advisory0.00.50.00.00.5
08/04/201640Acceptable0.00.00.00.00.0
07/28/201610Acceptable0.00.00.00.20.2
07/14/201650Acceptable0.20.00.00.00.2
07/07/2016<10Acceptable0.00.00.70.10.8
06/30/2016110Beach Advisory0.00.00.50.30.8
06/23/201620Acceptable0.00.00.00.00.0
06/16/2016180Beach Advisory0.10.00.00.00.1
06/16/2016180Beach Advisory0.10.00.00.00.1
06/09/2016327Beach Advisory1.00.40.00.01.4
06/02/201670Beach Advisory0.00.00.01.11.1
05/26/201610Acceptable0.00.00.30.10.4
05/19/2016<10Acceptable0.00.00.00.00.0
10/08/201531Acceptable0.00.00.00.00.0
10/01/2015884Beach Advisory0.11.00.00.01.1
09/24/2015<10Acceptable0.00.00.00.00.0
09/17/201520Acceptable0.50.00.00.00.5
09/10/2015759Beach Advisory0.50.00.00.00.5
09/03/201563Beach Advisory0.00.00.00.00.0
08/27/201597Beach Advisory0.00.00.00.00.0
08/20/201551Acceptable0.00.00.00.00.0
08/13/201510Acceptable0.00.00.00.00.0
08/06/201531Acceptable0.00.00.00.00.0
07/30/201541Acceptable0.00.00.10.00.1
07/23/2015<10Acceptable0.00.00.10.00.1
07/16/2015259Beach Advisory0.00.00.00.00.0
07/09/2015383Beach Advisory0.00.40.00.00.4
07/01/2015454Beach Advisory0.10.00.00.40.5
06/25/201520Acceptable0.00.00.00.00.0
06/18/201552Acceptable0.00.00.30.50.8
06/11/201520Acceptable0.00.00.20.30.5
06/04/2015197Beach Advisory0.00.00.40.71.2
05/28/2015246Beach Advisory0.00.00.00.00.0
05/21/201531Acceptable0.00.00.00.00.0
10/02/201410Acceptable0.00.00.00.00.0
09/25/201430Acceptable0.30.00.00.00.3
09/18/201410Acceptable0.00.00.40.00.4
09/11/201410Acceptable0.00.00.00.00.0
09/04/201410Acceptable0.00.00.00.00.0
08/28/201410Acceptable0.00.00.00.00.0
08/21/2014<10Acceptable0.40.00.00.00.4
08/14/2014238Beach Advisory0.00.50.20.00.7
08/07/201410Acceptable0.00.00.00.00.0
07/31/201498Beach Advisory0.00.00.00.20.2
07/24/2014110Beach Advisory0.00.20.00.00.2
07/17/2014288Beach Advisory0.00.01.30.51.8
07/10/201420Acceptable0.10.40.00.00.5
07/02/201410Acceptable1.00.00.00.01.0
06/26/2014495Beach Advisory0.10.10.00.00.2
06/19/201452Acceptable0.20.00.00.00.2
06/12/2014183Beach Advisory0.10.00.01.61.7
06/05/2014>24196Beach Advisory0.90.00.10.01.0
05/29/201485Beach Advisory0.00.00.00.00.0
05/22/2014683Beach Advisory0.20.00.00.00.2
10/03/201310Acceptable0.00.00.00.00.0
09/26/201331Acceptable0.00.00.00.00.0
09/19/201363Beach Advisory0.00.00.00.00.0
09/12/2013<10Acceptable1.60.00.00.01.6
08/29/201341Acceptable0.00.40.00.00.5
08/22/201320Acceptable0.30.00.00.00.3
08/15/201363Beach Advisory0.00.00.90.10.9
08/08/201352Acceptable0.50.00.00.00.5
08/01/2013110Beach Advisory0.70.00.00.00.7
07/25/2013107Beach Advisory0.00.00.30.10.4
07/18/201363Beach Advisory0.00.00.00.00.0
07/11/201312997Beach Advisory0.00.00.20.20.5
07/02/20134611Beach Advisory0.10.80.00.00.9
06/27/2013120Beach Advisory0.20.10.00.00.3
06/20/201331Acceptable0.00.00.20.00.2
06/13/2013121Beach Advisory1.30.00.11.42.7
06/06/201373Beach Advisory0.10.00.00.91.0
05/23/2013121Beach Advisory1.80.00.00.01.8
09/27/201230Acceptable0.10.00.00.00.1
09/20/2012121Beach Advisory0.00.01.50.01.5
09/13/2012<10Acceptable0.00.00.00.00.0
09/06/201231Acceptable0.00.10.10.00.2
08/30/201241Acceptable0.00.00.10.60.8
08/23/2012183Beach Advisory0.00.00.00.00.0
08/16/201274Beach Advisory0.00.60.00.00.6
08/09/2012<10Acceptable0.00.00.00.00.0
07/26/201230Acceptable0.60.00.00.20.8
07/19/201298Beach Advisory0.01.80.00.01.8
07/12/201263Beach Advisory0.00.00.00.00.0
07/05/201220Acceptable0.00.10.00.00.1
06/07/2012<10Acceptable0.00.00.00.20.2
05/31/201220Acceptable0.00.00.20.00.2
05/24/201252Acceptable1.00.00.21.42.6
05/17/2012<10Acceptable0.00.10.50.00.6
11/21/201134Acceptable0.10.00.00.00.1
11/09/201191Beach Advisory0.00.00.00.00.0
10/27/2011133Beach Advisory0.60.00.00.00.6
10/20/2011344Beach Advisory0.01.10.00.01.1

Entero Count (fecal indicator) and Rainfall Correlation

109 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 site is located in downtown Yonkers next to the Center for the Urban River at Beczak. There are several Combined Sewer Overflor outfalls nearby. Partners: Jerry Blackstone (sponsor), Yonkers Paddling & Rowing Club, Sarah Lawrence College Center for the Urban River at Beczak (lab analysis); Site Coordinators: Jerry Blackstone and Robert Hothan

Agencies Responsible:

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

Tell Congress: NY Needs a Robust, Fully Funded EPA
Become a Member