Water Quality
Water Quality > Tributary and Waterfront Data > Wallkill River > Montgomery- I-84 Crossing

Montgomery- I-84 Crossing

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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

71 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
10/05/2023 58 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2023 >2420 Beach Advisory 0.0 0.9 0.0 0.1 1.0
08/10/2023 146 Beach Advisory 0.0 0.0 0.0 1.2 1.2
07/20/2023 >2420 Beach Advisory 0.0 0.0 0.2 0.0 0.2
06/08/2023 101 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/25/2023 328 Beach Advisory 0.0 0.1 0.0 0.0 0.1
10/18/2022 31 Acceptable 0.4 0.2 0.0 0.0 0.6
09/15/2022 2420 Beach Advisory 0.0 0.0 0.5 0.0 0.6
08/09/2022 1120 Beach Advisory 0.3 0.4 0.0 0.1 0.7
07/19/2022 1733 Beach Advisory 0.2 0.1 0.0 0.0 0.3
06/23/2022 96 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/10/2022 99 Beach Advisory 0.0 0.0 0.0 0.7 0.7
10/12/2021 111 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/07/2021 >2420 Beach Advisory 0.0 0.1 0.0 0.0 0.1
08/10/2021 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/06/2021 1553 Beach Advisory 0.0 0.0 0.1 0.7 0.8
06/08/2021 980 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/11/2021 2420 Beach Advisory 0.0 0.8 0.1 0.0 0.9
10/13/2020 >2420 Beach Advisory 0.4 0.2 0.0 0.0 0.5
09/15/2020 131 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/18/2020 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/21/2020 1986 Beach Advisory 0.0 0.4 0.0 0.0 0.4
06/15/2020 649 Beach Advisory 0.0 0.0 0.0 0.1 0.1
10/05/2019 1112 Beach Advisory 0.0 0.7 0.1 0.0 0.7
09/14/2019 1414 Beach Advisory 0.0 0.0 0.1 0.0 0.1
08/10/2019 >2420 Beach Advisory 0.0 0.0 0.5 0.8 1.3
07/13/2019 >2420 Beach Advisory 0.0 0.1 0.0 0.0 0.1
06/15/2019 1553 Beach Advisory 0.0 0.3 0.0 0.0 0.4
05/11/2019 1733 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/13/2018 >2420 Beach Advisory 0.1 0.0 1.0 0.0 1.1
09/08/2018 >2420 Beach Advisory 0.0 0.4 0.0 0.0 0.4
08/11/2018 >2420 Beach Advisory 0.0 0.0 0.1 0.0 0.1
07/14/2018 2420 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 63 Beach Advisory 0.0 0.7 0.0 0.0 0.7
10/14/2017 248 Beach Advisory 0.0 0.0 0.1 0.0 0.1
09/09/2017 1300 Beach Advisory 0.0 0.1 0.8 0.3 1.1
08/12/2017 >2420 Beach Advisory 0.9 0.0 0.0 0.0 0.9
07/08/2017 >2420 Beach Advisory 0.5 0.1 0.0 0.0 0.6
06/10/2017 >2420 Beach Advisory 0.0 0.0 0.0 0.3 0.3
05/13/2017 1986 Beach Advisory 0.1 0.0 0.0 0.0 0.1
10/15/2016 2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/17/2016 354 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 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/18/2016 225 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/21/2016 87 Beach Advisory 0.0 0.0 0.0 0.0 0.0
10/31/2015 >2420 Beach Advisory 0.0 0.0 1.3 0.0 1.3
09/26/2015 501 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/29/2015 1300 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/25/2015 142 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/27/2015 1553 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/30/2015 195 Beach Advisory 0.0 0.0 0.3 0.1 0.4
11/01/2014 >2420 Beach Advisory 0.0 0.0 0.1 0.0 0.1
09/27/2014 86 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/30/2014 770 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/26/2014 1986 Beach Advisory 0.0 0.0 0.2 0.0 0.2
06/28/2014 411 Beach Advisory 0.0 0.0 0.4 0.0 0.4
05/31/2014 167 Beach Advisory 0.0 0.1 0.0 0.0 0.1
10/26/2013 >2420 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/28/2013 78 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/24/2013 613 Beach Advisory 0.0 0.0 0.6 0.0 0.6
07/27/2013 84 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 >2420 Beach Advisory 0.0 0.0 0.0 0.1 0.1
09/29/2012 315 Beach Advisory 0.0 0.7 0.0 0.2 0.8
09/01/2012 >2420 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 921 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/26/2012 435 Beach Advisory 0.0 0.0 0.0 0.3 0.4

Entero Count (fecal indicator) and Rainfall Correlation

71 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 I-84 overpass, off Route 416 just west of Maybrook. The area is a combination of agricultural and residential land uses.

Agencies Responsible:

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

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