Water Quality
Water Quality > Tributary and Waterfront Data > Wallkill River > New Paltz- Mill Brook tributary at Route 32

New Paltz- Mill Brook tributary at Route 32

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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

47 Samples taken

Sample Date [i] Enterococcus Count
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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
10/05/2019 414 Beach Advisory 0.0 0.0 0.5 0.0 0.5
09/14/2019 259 Beach Advisory 0.0 0.0 0.1 0.0 0.1
08/10/2019 1017 Beach Advisory 0.0 0.0 0.5 0.8 1.3
07/13/2019 703 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/15/2019 459 Beach Advisory 0.0 0.0 0.4 0.0 0.4
05/11/2019 >2420 Beach Advisory 0.0 0.2 0.0 0.0 0.2
10/13/2018 2420 Beach Advisory 0.1 0.0 1.0 0.0 1.1
09/08/2018 >2420 Beach Advisory 0.0 0.0 0.1 0.0 0.1
08/11/2018 >2420 Beach Advisory 0.0 0.1 0.0 0.9 1.0
07/14/2018 1553 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/09/2018 1300 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/12/2018 345 Beach Advisory 0.0 0.0 0.2 0.0 0.2
10/14/2017 276 Beach Advisory 0.0 0.0 0.1 0.0 0.1
09/09/2017 236 Beach Advisory 0.0 0.0 0.1 1.0 1.2
08/12/2017 >2420 Beach Advisory 0.5 1.0 0.0 0.0 1.5
07/08/2017 >2420 Beach Advisory 0.0 0.4 0.0 0.0 0.4
06/10/2017 387 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/13/2017 1553 Beach Advisory 0.1 0.0 0.0 0.0 0.1
10/15/2016 151 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/17/2016 82 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/20/2016 1203 Beach Advisory 0.0 0.0 0.2 0.0 0.2
07/16/2016 400 Beach Advisory 0.0 0.0 0.5 0.0 0.5
06/18/2016 1011 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/21/2016 132 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/31/2015 162 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/26/2015 78 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/29/2015 387 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/25/2015 816 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/27/2015 770 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/30/2015 361 Beach Advisory 0.0 0.0 0.0 0.3 0.3
11/01/2014 84 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/27/2014 107 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/30/2014 579 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/26/2014 416 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/28/2014 2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/31/2014 299 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/26/2013 32 Acceptable 0.0 0.0 0.0 0.0 0.0
09/28/2013 225 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/24/2013 >2420 Beach Advisory 0.0 0.1 0.0 0.0 0.1
07/27/2013 770 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/29/2013 >2420 Beach Advisory 0.0 0.5 0.7 0.0 1.3
06/08/2013 >2420 Beach Advisory 0.3 2.0 0.1 0.0 2.5
10/27/2012 210 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2012 3076 Beach Advisory 0.2 1.7 0.0 0.1 2.0
09/01/2012 1414 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/28/2012 1986 Beach Advisory 0.0 0.0 0.6 0.0 0.7
06/30/2012 236 Beach Advisory 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

47 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 in the heart of New Paltz on a small, unnamed tributary of the Wallkill River that passes by the Stewart?s shop.

Agencies Responsible:

Ulster County Dept. of Health: 845-340-3010; NYSDEC Region 3: 845-256-3000

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