Water Quality
Water Quality > Hudson River Estuary Data > Albany County & Rensselaer County Sites > Castleton

Castleton

Castleton_Vlokie Kills
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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

95 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
10/19/2023 22 Acceptable 0.0 0.0 0.0 0.0 0.0
09/21/2023 42 Acceptable 0.0 0.0 0.0 1.3 1.3
08/24/2023 44 Acceptable 0.0 0.0 0.0 0.0 0.0
07/20/2023 >2420 Beach Advisory 0.0 0.0 0.9 0.0 0.9
06/29/2023 66 Beach Advisory 0.0 0.1 0.2 1.2 1.6
05/04/2023 99 Beach Advisory 0.0 0.2 0.0 0.7 1.0
10/13/2022 62 Beach Advisory 0.0 0.0 0.0 0.0 0.0
09/13/2022 55 Acceptable 0.1 0.0 0.0 0.0 0.1
08/22/2022 89 Beach Advisory 0.0 0.0 0.0 0.1 0.1
07/18/2022 104 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/16/2022 435 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/26/2022 54 Acceptable 0.0 0.0 0.0 0.8 0.8
10/28/2021 >2420 Beach Advisory 0.0 0.0 1.0 0.9 1.9
09/16/2021 1300 Beach Advisory 0.2 0.8 0.0 0.8 1.8
08/19/2021 67 Beach Advisory 0.5 0.0 0.0 0.0 0.5
07/22/2021 649 Beach Advisory 0.0 0.5 0.3 0.1 0.9
06/10/2021 119 Beach Advisory 0.0 0.0 0.6 0.0 0.6
05/20/2021 2 Acceptable 0.0 0.0 0.0 0.0 0.0
10/17/2020 115 Beach Advisory 0.0 0.6 0.0 0.0 0.6
09/21/2020 15 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2020 16 Acceptable 0.0 0.0 0.0 0.0 0.0
07/17/2020 61 Beach Advisory 0.4 0.1 0.0 0.1 0.5
06/19/2020 25 Acceptable 0.0 0.0 0.0 0.0 0.0
05/29/2020 24 Acceptable 0.0 0.0 0.0 0.0 0.0
10/11/2019 121 Beach Advisory 0.0 0.0 0.0 0.1 0.1
09/13/2019 27 Acceptable 0.0 0.0 0.0 0.0 0.0
08/09/2019 921 Beach Advisory 0.0 0.8 0.1 0.4 1.3
07/12/2019 32 Acceptable 0.0 0.0 0.0 0.0 0.0
06/08/2019 108 Beach Advisory 0.0 0.0 0.6 0.5 1.1
05/11/2019 37 Acceptable 0.0 0.2 0.0 0.0 0.2
10/13/2018 1986 Beach Advisory 0.3 0.0 1.3 0.0 1.6
09/13/2018 58 Acceptable 0.0 0.1 0.1 0.9 1.1
08/17/2018 33 Acceptable 0.0 0.0 0.0 0.0 0.0
07/20/2018 10 Acceptable 0.0 0.0 0.0 0.4 0.4
06/16/2018 81 Beach Advisory 0.0 0.1 0.0 0.3 0.3
05/09/2018 13 Acceptable 0.0 0.0 0.0 0.3 0.3
10/19/2017 49 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2017 13 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2017 16 Acceptable 0.0 0.0 0.0 0.0 0.0
07/13/2017 65 Beach Advisory 0.2 0.1 0.1 0.0 0.3
06/15/2017 6 Acceptable 0.0 0.0 0.0 0.0 0.0
05/18/2017 4 Acceptable 0.0 0.0 0.0 0.3 0.3
10/18/2016 3 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2016 14 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2016 33 Acceptable 0.0 0.0 0.2 0.0 0.2
07/16/2016 9 Acceptable 0.0 0.1 0.1 0.0 0.2
06/18/2016 13 Acceptable 0.0 0.0 0.0 0.0 0.0
05/23/2016 6 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2015 40 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2015 141 Beach Advisory 0.0 0.9 1.2 0.1 2.3
08/15/2015 13 Acceptable 0.3 0.3 0.0 0.0 0.6
07/11/2015 345 Beach Advisory 0.0 0.0 1.2 0.0 1.2
06/13/2015 48 Acceptable 0.0 1.3 0.0 0.0 1.3
05/14/2015 3 Acceptable 0.0 0.0 0.1 0.0 0.1
10/16/2014 26 Acceptable 0.3 0.1 0.0 0.0 0.4
09/10/2014 6 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2014 11 Acceptable 0.0 0.1 0.0 0.0 0.1
07/10/2014 1733 Beach Advisory 0.0 1.7 0.4 0.3 2.3
06/15/2014 1300 Beach Advisory 0.0 0.5 0.5 0.1 1.0
05/15/2014 20 Acceptable 0.0 0.1 0.0 0.0 0.1
10/21/2013 25 Acceptable 0.0 0.0 0.0 0.2 0.2
09/21/2013 5 Acceptable 0.0 0.0 0.0 0.0 0.0
08/19/2013 14 Acceptable 0.0 0.0 0.0 0.0 0.0
07/21/2013 20 Acceptable 0.0 0.0 0.0 0.0 0.0
06/24/2013 69 Beach Advisory 0.0 0.0 0.0 0.0 0.0
06/04/2013 1733 Beach Advisory 0.0 0.0 1.1 0.1 1.1
10/15/2012 31 Acceptable 0.0 0.5 0.0 0.1 0.6
09/15/2012 8 Acceptable 0.1 0.0 0.0 0.0 0.1
08/18/2012 7 Acceptable 0.0 0.1 0.0 0.2 0.3
07/21/2012 5 Acceptable 0.0 0.0 0.0 0.2 0.2
06/16/2012 <1 Acceptable 0.0 0.0 0.0 0.2 0.2
05/20/2012 20 Acceptable 0.0 0.0 0.0 0.0 0.0
10/16/2011 1414 Beach Advisory 0.0 0.1 1.1 0.3 1.6
09/19/2011 22 Acceptable 0.0 0.0 0.0 0.1 0.1
08/21/2011 9 Acceptable 0.0 0.0 0.0 0.0 0.0
07/14/2011 2 Acceptable 0.0 0.3 0.0 0.0 0.3
07/02/2011 25 Acceptable 0.0 0.0 1.0 1.1 2.1
05/19/2011 328 Beach Advisory 0.8 0.2 0.1 0.5 1.7
10/16/2010 649 Beach Advisory 0.0 1.0 0.3 0.0 1.3
09/14/2010 26 Acceptable 0.0 0.0 0.0 0.0 0.0
08/21/2010 8 Acceptable 0.0 0.1 0.1 0.0 0.2
07/19/2010 5 Acceptable 0.0 0.2 0.5 0.0 0.7
06/18/2010 64 Beach Advisory 0.0 0.0 0.2 0.0 0.3
05/25/2010 1 Acceptable 0.0 0.0 0.0 0.0 0.0
10/23/2009 26 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2009 21 Acceptable 0.0 0.0 0.0 0.0 0.0
08/24/2009 687 Beach Advisory 0.0 0.3 1.0 1.5 2.8
07/31/2009 770 Beach Advisory 0.6 0.3 1.0 0.0 1.9
06/13/2009 126 Beach Advisory 0.0 0.3 0.3 0.0 0.6
05/15/2009 291 Beach Advisory 0.0 0.5 0.0 0.0 0.5
10/23/2008 6 Acceptable 0.0 0.2 0.1 0.0 0.2
09/17/2008 4 Acceptable 0.0 0.0 0.0 0.3 0.3
08/09/2008 45 Acceptable 0.0 0.0 1.5 0.0 1.5
07/17/2008 6 Acceptable 0.0 0.0 0.0 0.1 0.1
06/19/2008 38 Acceptable 0.0 0.4 0.1 0.9 1.4

Entero Count (fecal indicator) and Rainfall Correlation

95 Samples taken

All Water Quality Parameters

95 Samples taken

Sample Date [i] Entero 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 [i] Temp (f)
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Temperature

Hudson River water temperature changes seasonally. Surface water temperature can change on small scales in the river reflecting natural and human influences.

[i] Salinity
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Salinity

Estuaries like the Hudson are where freshwaters in rivers meet the sea. Salinity tells us about the relative contribution of fresh and salt water within a particular region of the estuary. 

[i] Chlorophyll
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Chlorophyll

A measure of the amount of microscopic algae present in the water. High chlorophyll counts can mean high levels of the nutrients phosphorus and nitrogen, and the threat, or presence, of algae blooms.

[i] Turbidity
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Turbidity

Turbidity is a measure of the amount of fine particles suspended in the water. As turbidity rises, light penetration, a key factor for aquatic plants and algae, diminishes.

[i] Oxygen
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Oxygen

Oxygen concentrations in the water are closely connected to biological activities. Surface waters are typically in equilibrium with the atmosphere such that the oxygen concentration near the surface is close to fully saturated (100%).

Sort Sort Sort Sort Sort Sort Sort Sort
10/19/2023 22 Acceptable 13.09 0.07 0.92 5.4 117
09/21/2023 42 Acceptable 19.99 0.1 1.55 n/a n/a
08/24/2023 44 Acceptable 22.72 0.09 1.93 1.6 99.1
07/20/2023 >2420 Beach Advisory 25.37 0.1 1.88 35.7 97.2
06/29/2023 66 Beach Advisory 74.8 0.1 1.9 18.1 85.9
05/04/2023 99 Beach Advisory 51.9 0.1 2.4 18.2 101.5
10/13/2022 62 Beach Advisory 59.5 0.1 2.3 4 92.3
09/13/2022 55 Acceptable 74.1 0.2 2.7 5.4 85
08/22/2022 89 Beach Advisory 79.5 0.1 6.3 5 85.8
07/18/2022 104 Beach Advisory 79.3 0.1 9.2 10.9 96.2
06/16/2022 435 Beach Advisory 73.2 0.1 2.1 19.6 89.8
05/26/2022 54 Acceptable 68.6 0.1 1.4 9.4 n/a
10/28/2021 >2420 Beach Advisory 54.086 0.09 3.59 270 104.3
09/16/2021 1300 Beach Advisory 69.71 0.11 1.84 19.1 124.5
08/19/2021 67 Beach Advisory 77.54 0.1 1.97 9.8 93.1
07/22/2021 649 Beach Advisory 71.438 0.09 2.45 48.3 98.8
06/10/2021 119 Beach Advisory 75.614 0.15 2.2 12.8 88.9
05/20/2021 2 Acceptable 65.552 0.13 2.46 6.3 100.1
10/17/2020 115 Beach Advisory 59.792 0.13 3.05 5 90.2
09/21/2020 15 Acceptable 67.478 0.14 10.91 5.8 109.9
08/17/2020 16 Acceptable 81.23 0.13 5.8 5.1 103.7
07/17/2020 61 Beach Advisory 80.6 0.16 2.79 8.5 85
06/19/2020 25 Acceptable 75.92 0.14 6.14 7 106.9
05/29/2020 24 Acceptable 73.724 0.12 2.09 7 99.6
10/11/2019 121 Beach Advisory 60.296 0.13 1.93 6.6 99.7
09/13/2019 27 Acceptable 70.988 0.13 2.95 6.6 96.6
08/09/2019 921 Beach Advisory 80.33 0.14 6.34 6.2 92.9
07/12/2019 32 Acceptable 79.124 0.09 2.72 10 91
06/08/2019 108 Beach Advisory 67.442 0.1 2.33 14.1 103.6
05/11/2019 37 Acceptable 55.598 0.07 1.98 8.3 101
10/13/2018 1986 Beach Advisory 62.42 0.13 1.98 16.9 98.1
09/13/2018 58 Acceptable 71.654 0.12 1.99 7.5 92.8
08/17/2018 33 Acceptable 78.998 0.13 3.96 8.9 95.6
07/20/2018 10 Acceptable 81.914 0.13 11.67 7.5 107.9
06/16/2018 81 Beach Advisory 73.778 0.13 4.79 8.1 101.2
05/09/2018 13 Acceptable 57.866 0.07 1.63 5.7 105.6
10/19/2017 49 Acceptable 63.428 0.12 2.72 8 91.3
09/14/2017 13 Acceptable 68.612 0.1 3.57 5.8 98
08/17/2017 16 Acceptable 76.568 0.11 2.07 14.5 88.6
07/13/2017 65 Beach Advisory 76.532 0.08 0.62 20 97.4
06/15/2017 6 Acceptable 73.382 0.08 1.6 6.7 99.4
05/18/2017 4 Acceptable 62.438 0.08 1.33 17.2 108.3
10/18/2016 3 Acceptable 62.87 0.14 0.94 34.5 92.9
09/17/2016 14 Acceptable 74.93 0.11 1.5 n/a 83.8
08/18/2016 33 Acceptable 82.274 0.13 2.35 28 88.3
07/16/2016 9 Acceptable 79.934 0.12 3.81 13.6 93
06/18/2016 13 Acceptable 71.978 0.12 0.34 19.8 95.9
05/23/2016 6 Acceptable 63.914 0.12 0.19 27 94.1
10/15/2015 40 Acceptable 60.548 0.14 2.35 10.2 95.3
09/14/2015 141 Beach Advisory 76.46 0.14 2.92 20.5 76.2
08/15/2015 13 Acceptable 78.476 0.13 5.22 12.8 88
07/11/2015 345 Beach Advisory 74.858 0.1 2.86 20.2 98.2
06/13/2015 48 Acceptable 73.346 0.1 1.93 2.4 92.9
05/14/2015 3 Acceptable 68.828 0.1 0.63 14 n/a
10/16/2014 26 Acceptable 62.42 0.13 5.74 9.8 98.8
09/10/2014 6 Acceptable 76.514 0.13 0.71 16.9 99.1
08/14/2014 11 Acceptable 76.91 0.12 1.77 8.5 88.4
07/10/2014 1733 Beach Advisory 77.576 0.12 1.52 63.2 96.8
06/15/2014 1300 Beach Advisory 68.63 0.11 3.38 84.5 105.7
05/15/2014 20 Acceptable 62.006 0.1 0.87 11.8 99.9
10/21/2013 25 Acceptable 60.44 0.14 1.41 146.6 94.3
09/21/2013 5 Acceptable 67.172 0.14 4.12 46.3 98.2
08/19/2013 14 Acceptable 74.12 0.14 0.89 16.7 92.6
07/21/2013 20 Acceptable 83.066 0.09 0.86 29 95.9
06/24/2013 69 Beach Advisory 73.112 0.11 1.15 38.4 102.5
06/04/2013 1733 Beach Advisory 70.07 0.1 0.79 105.4 97.7
10/15/2012 31 Acceptable 57.452 0.13 1.28 43 96.1
09/15/2012 8 Acceptable 73.13 0.12 1.48 96.9 92.9
08/18/2012 7 Acceptable 79.52 0.17 0.93 15.7 93.7
07/21/2012 5 Acceptable 82.598 0.19 5.38 17.3 98.1
06/16/2012 <1 Acceptable 74.192 0.13 1.67 16.4 102.9
05/20/2012 20 Acceptable 65.048 0.1 0.85 16.3 100.6
10/16/2011 1414 Beach Advisory 60.62 0.12 0.77 53.7 100
09/19/2011 22 Acceptable 65.444 0.11 0.9 33.9 101.1
08/21/2011 9 Acceptable 76.442 0.13 1.93 n/a 91.7
07/14/2011 2 Acceptable 78.674 0.08 4.1 39 92.7
07/02/2011 25 Acceptable 73.508 0.09 0.6 12.1 n/a
05/19/2011 328 Beach Advisory n/a n/a n/a n/a n/a
10/16/2010 649 Beach Advisory 55.85 0.09 0.8 19.9 97.5
09/14/2010 26 Acceptable 70.07 0.11 6.36 n/a 93.1
08/21/2010 8 Acceptable 77.522 0.12 3.51 n/a 86.6
07/19/2010 5 Acceptable 82.292 0.12 8.51 5 85.8
06/18/2010 64 Beach Advisory 71.564 0.13 2.71 9.3 94.5
05/25/2010 1 Acceptable 70.304 0.13 0.39 11.1 96
10/23/2009 26 Acceptable 50.522 0.11 0.37 46.4 95.7
09/17/2009 21 Acceptable 69.116 0.14 3.72 10.6 93.1
08/24/2009 687 Beach Advisory 78.944 0.12 1.67 76.7 95.7
07/31/2009 770 Beach Advisory 75.506 0.11 2.03 23.7 99.1
06/13/2009 126 Beach Advisory n/a n/a n/a n/a n/a
05/15/2009 291 Beach Advisory 62.996 n/a 1.05 9 103.2
10/23/2008 6 Acceptable 53.834 0.13 1.5 5.4 92.8
09/17/2008 4 Acceptable n/a n/a n/a n/a n/a
08/09/2008 45 Acceptable n/a n/a n/a n/a n/a
07/17/2008 6 Acceptable 79.3 0.13 2.65 16.3 107.1
06/19/2008 38 Acceptable n/a n/a n/a n/a n/a

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 Riverkeeper, Lamont-Doherty Earth Observatory and CUNY Queens College staff, 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:

Castleton, NY
Near the mouth of Vlockie Kill this site has recreational boating, kayaking and fishing from vessels and the shore.

Agencies Responsible:

Rensselear County Dept. of Health: 518-270-2655, Albany County Dept. of Health: 518-447-4580 and NYSDEC Region 4: 518-357-2045

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