Water Quality
Water Quality > Hudson River Estuary Data > Greene County & Columbia County Sites > Athens Waterfront

Athens Waterfront

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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

54 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
10/27/2021 >2420 Beach Advisory 0.0 1.0 0.9 0.0 1.9
09/15/2021 50 Acceptable 0.0 0.0 0.8 0.0 0.8
08/18/2021 30 Acceptable 0.0 0.0 0.0 0.0 0.0
07/21/2021 816 Beach Advisory 0.5 0.3 0.1 0.9 1.9
06/09/2021 8 Acceptable 0.0 0.6 0.0 0.0 0.6
05/20/2021 5 Acceptable 0.0 0.0 0.0 0.0 0.0
10/17/2020 32 Acceptable 0.0 0.6 0.0 0.0 0.6
09/21/2020 6 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2020 166 Beach Advisory 0.0 0.0 0.0 0.0 0.0
07/17/2020 102 Beach Advisory 0.4 0.1 0.0 0.1 0.5
06/19/2020 87 Beach Advisory 0.0 0.0 0.0 0.0 0.0
05/29/2020 9 Acceptable 0.0 0.0 0.0 0.0 0.0
10/11/2019 110 Beach Advisory 0.0 0.0 0.0 0.1 0.1
09/13/2019 192 Beach Advisory 0.0 0.0 0.0 0.0 0.0
08/09/2019 60 Acceptable 0.0 0.8 0.1 0.4 1.3
07/12/2019 54 Acceptable 0.0 0.0 0.0 0.0 0.0
06/08/2019 6 Acceptable 0.0 0.0 0.6 0.5 1.1
05/11/2019 5 Acceptable 0.0 0.2 0.0 0.0 0.2
10/13/2018 361 Beach Advisory 0.3 0.0 1.3 0.0 1.6
09/13/2018 178 Beach Advisory 0.0 0.1 0.1 0.9 1.1
08/17/2018 23 Acceptable 0.0 0.0 0.0 0.0 0.0
07/20/2018 34 Acceptable 0.0 0.0 0.0 0.4 0.4
06/16/2018 13 Acceptable 0.0 0.1 0.0 0.3 0.3
05/09/2018 15 Acceptable 0.0 0.0 0.0 0.3 0.3
10/19/2017 8 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2017 51 Acceptable 0.0 0.0 0.0 0.0 0.0
08/17/2017 26 Acceptable 0.0 0.0 0.0 0.0 0.0
07/13/2017 60 Acceptable 0.2 0.1 0.1 0.0 0.3
06/15/2017 1 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
10/17/2016 16 Acceptable 0.0 0.0 0.0 0.0 0.0
09/17/2016 57 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2016 56 Acceptable 0.0 0.0 0.2 0.0 0.2
07/16/2016 12 Acceptable 0.0 0.1 0.1 0.0 0.2
06/18/2016 30 Acceptable 0.0 0.0 0.0 0.0 0.0
05/23/2016 16 Acceptable 0.0 0.0 0.0 0.0 0.0
10/15/2015 16 Acceptable 0.0 0.0 0.0 0.0 0.0
09/14/2015 20 Acceptable 0.0 0.9 1.2 0.1 2.3
08/15/2015 2 Acceptable 0.3 0.3 0.0 0.0 0.6
07/11/2015 65 Beach Advisory 0.0 0.0 1.2 0.0 1.2
06/13/2015 70 Beach Advisory 0.0 1.3 0.0 0.0 1.3
05/14/2015 2 Acceptable 0.0 0.0 0.1 0.0 0.1
10/16/2014 17 Acceptable 0.3 0.1 0.0 0.0 0.4
09/10/2014 18 Acceptable 0.0 0.0 0.0 0.0 0.0
08/14/2014 78 Beach Advisory 0.0 0.1 0.0 0.0 0.1
07/10/2014 27 Acceptable 0.0 1.7 0.4 0.3 2.3
06/15/2014 727 Beach Advisory 0.0 0.5 0.5 0.1 1.0
05/15/2014 50 Acceptable 0.0 0.1 0.0 0.0 0.1
10/21/2013 14 Acceptable 0.0 0.0 0.0 0.2 0.2
09/21/2013 19 Acceptable 0.0 0.0 0.0 0.0 0.0
08/19/2013 40 Acceptable 0.0 0.0 0.0 0.0 0.0
07/21/2013 37 Acceptable 0.0 0.0 0.0 0.0 0.0
06/24/2013 57 Acceptable 0.0 0.0 0.0 0.0 0.0
06/04/2013 45 Acceptable 0.0 0.0 1.1 0.1 1.1

Entero Count (fecal indicator) and Rainfall Correlation

54 Samples taken

All Water Quality Parameters

54 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
10/27/2021 >2420 Beach Advisory 55.166 0.12 2.88 50.2 96.7
09/15/2021 50 Acceptable 71.888 0.09 3.5 14.9 94.5
08/18/2021 30 Acceptable 78.386 0.1 10.2 10.9 93.8
07/21/2021 816 Beach Advisory 74.102 0.1 5.19 32.1 96.9
06/09/2021 8 Acceptable 74.048 0.14 3.52 15.6 129.8
05/20/2021 5 Acceptable 64.004 0.13 13.75 12.7 117.7
10/17/2020 32 Acceptable 60.008 0.14 3.31 10 95.6
09/21/2020 6 Acceptable 66.092 0.15 4.2 10.8 90.3
08/17/2020 166 Beach Advisory 79.574 0.15 3.07 6 94
07/17/2020 102 Beach Advisory 79.412 0.15 2.43 5.4 96.2
06/19/2020 87 Beach Advisory 75.902 0.014 4.81 8.6 99.9
05/29/2020 9 Acceptable 69.944 0.11 8.16 6.8 123.9
10/11/2019 110 Beach Advisory 60.674 0.13 21.59 9.1 96.6
09/13/2019 192 Beach Advisory 70.412 0.14 5.77 8.5 105.1
08/09/2019 60 Acceptable 79.754 0.14 6.16 6.9 103.6
07/12/2019 54 Acceptable 80.024 0.09 12.14 8.4 95.9
06/08/2019 6 Acceptable 66.92 0.09 4.39 8.5 98.9
05/11/2019 5 Acceptable 55.274 0.08 2.61 8.7 98.5
10/13/2018 361 Beach Advisory 61.52 0.12 6.01 15.6 93.3
09/13/2018 178 Beach Advisory 72.95 0.14 6.11 7.2 82.2
08/17/2018 23 Acceptable 78.87 0.14 16.7 15.9 93.3
07/20/2018 34 Acceptable 80.55 0.15 4.04 9.9 91.1
06/16/2018 13 Acceptable 70.36 0.13 3.18 14.5 91
05/09/2018 15 Acceptable 56.32 0.08 2.93 9.3 101.4
10/19/2017 8 Acceptable 62.9 0.12 8.54 11.8 95.7
09/14/2017 51 Acceptable 69.278 0.12 12.24 9.7 114.7
08/17/2017 26 Acceptable 75.848 0.12 9.51 18.4 98.5
07/13/2017 60 Acceptable 75.47 0.08 1.54 34.4 87.6
06/15/2017 1 Acceptable 69.99 0.09 3.61 7.4 97.7
05/18/2017 4 Acceptable 60.4 0.08 2.03 14.5 105.9
10/17/2016 16 Acceptable 61.95 0.12 8.15 39.8 101.8
09/17/2016 57 Acceptable 73.2 0.11 0.23 n/a 85.5
08/18/2016 56 Acceptable 80.5 0.12 5.03 37 84.8
07/16/2016 12 Acceptable 79.7 0.12 5.64 17.1 92.6
06/18/2016 30 Acceptable 72.2 0.12 5.63 20.3 96
05/23/2016 16 Acceptable 62 0.1 24.19 37.6 113.2
10/15/2015 16 Acceptable 59.612 0.14 17.78 42.7 95
09/14/2015 20 Acceptable 75.92 0.14 1.67 25.4 81.2
08/15/2015 2 Acceptable 78.026 0.13 5.54 17.6 90.5
07/11/2015 65 Beach Advisory 73.526 0.09 13.31 28.4 94.3
06/13/2015 70 Beach Advisory 71.672 0.11 27.13 26.3 110.2
05/14/2015 2 Acceptable 66.92 0.11 11.66 26.8 n/a
10/16/2014 17 Acceptable 64.202 0.14 2.96 7.1 101.5
09/10/2014 18 Acceptable 75.542 0.11 2.61 24.7 113
08/14/2014 78 Beach Advisory 75.686 0.14 3.96 34 96.9
07/10/2014 27 Acceptable 78.944 0.11 4.38 21.6 109.4
06/15/2014 727 Beach Advisory 69.728 0.13 0.09 62.4 99.4
05/15/2014 50 Acceptable 61.682 0.09 4.18 19.4 98
10/21/2013 14 Acceptable 59.972 0.13 13.22 113.6 101.8
09/21/2013 19 Acceptable 69.62 0.13 7.19 38.7 101.3
08/19/2013 40 Acceptable 74.804 0.13 3.37 149.5 93.1
07/21/2013 37 Acceptable 83.39 0.1 1.13 23.7 91.6
06/24/2013 57 Acceptable 71.438 0.11 1.38 29.8 98.6
06/04/2013 45 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:

Agencies Responsible:

Greene County Dept. of Health: 518-719-3600 and NYSDEC Region 4: 518-357-2045

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