Water Quality > Tributary and Waterfront Data > Rondout Creek > Alligerville- Route 6 Bridge swimming hole

Alligerville- Route 6 Bridge swimming hole

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

31 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
05/13/2017 18 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2016 55 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2016 687 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/20/2016 866 Beach Advisory 0.0 0.0 0.2 0.0 0.2
07/16/2016 148 Beach Advisory 0.0 0.0 0.5 0.0 0.5
06/18/2016 91 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/21/2016 72 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/31/2015 228 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/26/2015 37 Acceptable 0.0 0.0 0.0 0.0 0.0
08/29/2015 51 Acceptable 0.0 0.0 0.0 0.0 0.0
07/25/2015 27 Acceptable 0.0 0.0 0.0 0.0 0.0
06/27/2015 365 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/30/2015 50 Acceptable 0.0 0.0 0.0 0.3 0.3
11/01/2014 55 Acceptable 0.0 0.0 0.0 0.0 0.0
09/27/2014 192 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/30/2014 96 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/26/2014 345 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/28/2014 30 Acceptable 0.0 0.0 0.0 0.0 0.0
05/31/2014 48 Acceptable 0.0 0.0 0.0 0.0 0.0
10/26/2013 33 Acceptable 0.0 0.0 0.0 0.0 0.0
09/28/2013 15 Acceptable 0.0 0.0 0.0 0.0 0.0
08/24/2013 15 Acceptable 0.0 0.1 0.0 0.0 0.1
07/27/2013 173 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/29/2013 1414 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 167 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/29/2012 1541 Beach Advisory 0.2 1.7 0.0 0.1 2.0
09/01/2012 411 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/28/2012 204 Beach Advisory 0.7 0.0 0.6 0.0 1.3
06/30/2012 10 Acceptable 0.0 0.0 0.0 0.0 0.0
05/26/2012 49 Acceptable 0.0 0.0 0.0 0.0 0.1

Entero Count (fecal indicator) and Rainfall Correlation

31 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 swimming hole is located just downstream of the point where Peters Kill joins the Rondout after flowing through Minnewaska State Park.

Agencies Responsible:

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

Help Save the Environmental Law That Banned Fracking
Become a Member