Water Quality
Water Quality > Tributary and Waterfront Data > Sparkill Creek > Blauvelt- Clausland Arm

Blauvelt- Clausland Arm

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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

60 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
10/25/2022 529 Beach Advisory 0.0 0.4 0.0 0.0 0.4
09/29/2022 341 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/24/2022 75 Beach Advisory 0.0 0.0 0.6 0.0 0.6
07/19/2022 4611 Beach Advisory 0.0 2.3 0.0 0.1 2.4
06/21/2022 146 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/17/2022 96 Beach Advisory 0.0 0.1 0.1 0.1 0.3
10/18/2021 148 Beach Advisory 0.0 0.0 0.4 0.0 0.4
09/27/2021 120 Beach Advisory 0.0 0.0 0.0 0.8 0.8
08/24/2021 448 Beach Advisory 0.0 0.0 0.0 0.0 0.1
07/27/2021 717 Beach Advisory 0.0 0.0 0.7 0.0 0.7
06/29/2021 480 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/25/2021 238 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/27/2020 85 Beach Advisory 0.0 0.1 0.0 0.0 0.1
09/22/2020 131 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/25/2020 959 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/28/2020 1723 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/26/2019 183 Beach Advisory 0.0 0.0 0.0 0.1 0.1
09/28/2019 288 Beach Advisory 0.0 0.0 0.1 0.0 0.1
08/17/2019 528 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/20/2019 1067 Beach Advisory 0.0 0.0 0.5 0.7 1.2
06/15/2019 464 Beach Advisory 0.0 0.0 0.7 0.0 0.7
05/18/2019 269 Beach Advisory 0.0 0.0 0.0 0.0 0.1
10/27/2018 5172 Beach Advisory 0.6 0.0 0.0 0.0 0.6
09/15/2018 86 Beach Advisory 0.0 0.0 0.0 0.1 0.1
08/18/2018 2142 Beach Advisory 0.2 0.6 0.0 0.0 0.8
07/21/2018 391 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/16/2018 1300 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/19/2018 1986 Beach Advisory 0.2 0.0 0.3 0.7 1.1
10/21/2017 109 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/16/2017 181 Beach Advisory 0.0 0.0 0.1 0.0 0.1
08/19/2017 1723 Beach Advisory 0.0 0.5 0.0 0.0 0.5
07/15/2017 2310 Beach Advisory 0.0 0.7 0.1 0.0 0.8
06/17/2017 1725 Beach Advisory 0.0 0.2 0.0 0.0 0.2
05/20/2017 295 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/08/2016 1300 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/10/2016 1046 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/13/2016 1733 Beach Advisory 0.0 0.6 0.1 0.1 0.8
07/09/2016 1120 Beach Advisory 0.0 0.0 0.4 0.0 0.4
06/11/2016 980 Beach Advisory 0.0 0.0 0.0 0.2 0.2
05/14/2016 179 Beach Advisory 0.0 0.2 0.0 0.0 0.2
09/05/2015 488 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/01/2015 435 Beach Advisory 0.0 0.0 1.5 0.0 1.5
07/04/2015 1414 Beach Advisory 0.0 0.0 0.0 1.1 1.1
05/02/2015 20 Acceptable 0.0 0.0 0.0 0.0 0.0
10/04/2014 1553 Beach Advisory 0.5 0.0 0.0 0.0 0.5
09/06/2014 308 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/05/2014 1986 Beach Advisory 0.0 0.2 3.0 2.3 5.5
06/07/2014 613 Beach Advisory 0.0 0.0 0.5 0.0 0.5
05/03/2014 64 Beach Advisory 0.0 0.0 0.3 2.8 3.0
08/10/2013 816 Beach Advisory 0.0 0.5 0.4 0.0 0.9
06/15/2013 649 Beach Advisory 0.0 0.2 0.7 0.0 0.9
05/04/2013 42 Acceptable 0.0 0.0 0.0 0.0 0.0
10/06/2012 866 Beach Advisory 0.0 0.0 1.7 0.5 2.2
09/08/2012 1414 Beach Advisory 0.7 0.0 0.0 0.5 1.2
08/04/2012 517 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/14/2012 1300 Beach Advisory 0.1 0.0 0.0 0.0 0.1
05/12/2012 166 Beach Advisory 0.0 0.0 0.3 0.4 0.7
11/06/2011 66 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/03/2011 99 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/28/2011 89 Beach Advisory 0.0 0.0 0.0 0.0 0.0

Entero Count (fecal indicator) and Rainfall Correlation

60 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:

The Clausland Arm is the main stem of Sparkill Creek. This sampling site and the Blauvelt Arm trib sampling site are located side-by-side, just upstream of the confluence of these two branches of the Creek. This sampling site is located in a forested area between residences and an office building.

Agencies Responsible:

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

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