Water Quality > Tributary and Waterfront Data > Wallkill River > Wawayanda- Pellets Island Bridge

Wawayanda- Pellets Island 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

33 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
08/12/2017 >2420 Beach Advisory 0.9 0.5 0.0 0.0 1.4
07/08/2017 >2420 Beach Advisory 0.0 0.6 0.0 0.0 0.6
06/10/2017 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/13/2017 1553 Beach Advisory 0.2 0.0 0.0 0.0 0.2
10/15/2016 452 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/17/2016 756 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/20/2016 >2420 Beach Advisory 0.0 0.0 0.1 0.0 0.1
07/16/2016 1203 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/18/2016 184 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/21/2016 99 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/31/2015 >2420 Beach Advisory 0.0 0.0 0.3 1.0 1.3
09/26/2015 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/29/2015 461 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/25/2015 1733 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/30/2015 238 Beach Advisory 0.0 0.0 0.0 0.4 0.4
11/01/2014 1300 Beach Advisory 0.0 0.0 0.0 0.1 0.1
09/27/2014 204 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/30/2014 921 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/26/2014 727 Beach Advisory 0.0 0.0 0.0 0.2 0.2
06/28/2014 649 Beach Advisory 0.0 0.0 0.0 0.2 0.2
05/31/2014 461 Beach Advisory 0.0 0.1 0.0 0.0 0.1
10/26/2013 32 Acceptable 0.0 0.0 0.0 0.0 0.0
09/28/2013 313 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/24/2013 345 Beach Advisory 0.0 0.0 0.6 0.0 0.6
07/27/2013 260 Beach Advisory 0.0 0.0 0.0 0.1 0.1
06/29/2013 >2420 Beach Advisory 0.0 0.9 1.5 0.1 2.5
06/08/2013 >2420 Beach Advisory 0.2 1.7 0.2 0.0 2.1
10/27/2012 921 Beach Advisory 0.0 0.0 0.0 0.1 0.1
09/29/2012 4884 Beach Advisory 0.0 0.7 0.0 0.2 0.8
09/01/2012 980 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/28/2012 >2420 Beach Advisory 0.5 0.0 0.8 0.0 1.2
06/30/2012 260 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/26/2012 361 Beach Advisory 0.0 0.0 0.0 0.3 0.4

Entero Count (fecal indicator) and Rainfall Correlation

33 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:

This site is located at the northern edge of the Black Dirt agricultural region, a floodplain with rich, alluvial soils. For approximately five miles upstream of this sampling site, the Wallkill River is artificially straightened and its watershed is drained by manmade canals.

Agencies Responsible:

Orange County Dept. of Health: 845-291-2331; NYSDEC Region 3: 845-256-3000

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