Piermont- Old Draw Bridge

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

44 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
10/27/2018201Beach Advisory0.
09/15/2018602Beach Advisory0.
08/18/2018>24196Beach Advisory0.
07/21/2018744Beach Advisory0.
06/16/20185794Beach Advisory0.
05/19/20181234Beach Advisory0.
10/21/2017309Beach Advisory0.
09/16/20174106Beach Advisory0.
08/19/201724196Beach Advisory0.
07/15/20177701Beach Advisory0.
06/17/20176867Beach Advisory0.
05/20/20174611Beach Advisory0.
10/08/2016>2420Beach Advisory0.
09/10/2016>2420Beach Advisory0.
08/13/2016>2420Beach Advisory0.
07/09/2016>2420Beach Advisory0.
06/11/2016>2420Beach Advisory0.
05/14/2016>2420Beach Advisory0.
10/03/2015>24196Beach Advisory0.
09/05/20152909Beach Advisory0.
08/01/20156488Beach Advisory0.
07/04/2015448Beach Advisory0.
06/06/20152142Beach Advisory0.
05/02/2015285Beach Advisory0.
10/04/2014364Beach Advisory0.
09/06/2014243Beach Advisory0.
08/02/2014>24196Beach Advisory0.
07/05/20142851Beach Advisory0.
06/07/2014364Beach Advisory0.
05/03/2014292Beach Advisory0.
10/12/2013121Beach Advisory0.
09/14/20134352Beach Advisory0.
08/10/20135475Beach Advisory0.
07/13/2013168Beach Advisory0.
06/15/2013677Beach Advisory0.
10/06/20121169Beach Advisory0.
09/08/2012682Beach Advisory1.
08/04/2012199Beach Advisory0.
07/14/2012580Beach Advisory0.
06/02/2012>24196Beach Advisory0.
05/12/2012364Beach Advisory0.
11/06/2011>2420Beach Advisory0.
05/28/2011345Beach Advisory0.

Entero Count (fecal indicator) and Rainfall Correlation

44 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 trained by Riverkeeper, and processed on the Riverkeeper vessel, according to the 2014 Quality Assurance Project Plan.

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:

Sailboats are anchored in the creek a short distance downstream of this site, which is adjacent to a playground near the Old Draw Bridge. Just upstream of this site, there is residential development on both banks of the Creek, and forested buffer past the residential strip. Downstream of this site, the Creek enters Piermont Marsh.

Agencies Responsible:

Rockland County Dept. of Health: 845-364-2900; NYSDEC Region 3: 914-428-2505

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