Water Quality > Tributary and Waterfront Data > Wallkill River > New Paltz- Saw Mill Brook tributary

New Paltz- Saw Mill Brook tributary

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

36 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
10/14/20171203Beach Advisory0.00.00.10.00.1
09/09/2017770Beach Advisory0.00.00.11.01.2
08/12/2017>2420Beach Advisory0.51.00.00.01.5
07/08/20172420Beach Advisory0.00.40.00.00.4
06/10/2017153Beach Advisory0.00.00.00.00.0
05/13/2017206Beach Advisory0.10.00.00.00.1
10/15/201693Beach Advisory0.00.00.00.00.0
09/17/20161300Beach Advisory0.00.00.00.00.0
08/20/20161553Beach Advisory0.00.00.20.00.2
07/16/2016437Beach Advisory0.00.00.50.00.5
06/18/2016727Beach Advisory0.00.00.00.00.0
05/21/2016222Beach Advisory0.00.00.00.00.0
10/31/2015102Beach Advisory0.00.00.00.00.0
09/26/2015148Beach Advisory0.00.00.00.00.0
08/29/201599Beach Advisory0.00.00.00.00.0
07/25/2015770Beach Advisory0.00.00.00.00.0
06/27/2015727Beach Advisory0.00.00.00.00.0
05/30/20152420Beach Advisory0.00.00.00.30.3
11/01/2014328Beach Advisory0.00.00.00.00.0
09/27/2014308Beach Advisory0.00.00.00.00.0
08/30/20141733Beach Advisory0.00.00.00.00.0
07/26/2014579Beach Advisory0.00.00.00.00.0
06/28/2014980Beach Advisory0.00.00.00.00.0
05/31/2014517Beach Advisory0.00.00.00.00.0
10/26/2013112Beach Advisory0.00.00.00.00.0
09/28/2013397Beach Advisory0.00.00.00.00.0
08/24/20131733Beach Advisory0.00.10.00.00.1
07/27/201380Beach Advisory0.00.00.00.00.0
06/29/2013>2420Beach Advisory0.00.50.70.01.3
06/08/2013>2420Beach Advisory0.32.00.10.02.5
10/27/2012114Beach Advisory0.00.00.00.00.0
09/29/2012571Beach Advisory0.21.70.00.12.0
09/01/2012>2420Beach Advisory0.00.00.00.00.0
07/28/2012980Beach Advisory0.70.00.60.01.3
06/30/2012980Beach Advisory0.00.00.00.00.0
05/26/2012340Beach Advisory0.00.00.00.00.1

Entero Count (fecal indicator) and Rainfall Correlation

36 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:

Saw Mill Brook flows through residential areas and the SUNY New Paltz campus before turning north and flowing along the Wallkill Valley Rail Trail to the Wallkill River. This sampling site is located near where Saw Mill Brook empties into the Wallkill River, at the DEC boat launch at Plains Road.

Agencies Responsible:

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

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