Mohawk River at Waterford

155W-photo

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

58 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.

QualityRain, day of (in)Prior Day2 Days Prior3 Days Prior Rain4 Days Total Rain
SortSortSortSortSortSortSortSort
09/14/2017727Beach Advisory0.00.00.00.00.0
08/17/20172421Beach Advisory0.00.00.00.00.0
07/13/20172420Beach Advisory0.20.10.10.00.3
06/15/201789Beach Advisory0.00.00.00.00.0
05/18/201732Acceptable0.00.00.00.30.3
10/18/20161046Beach Advisory0.00.00.00.00.0
09/17/20161986Beach Advisory0.00.00.00.00.0
08/18/20162420Beach Advisory0.00.00.20.00.2
07/16/2016461Beach Advisory0.00.10.10.00.2
06/18/201610Acceptable0.00.00.00.00.0
05/23/201613Acceptable0.00.00.00.00.0
10/15/2015517Beach Advisory0.00.00.00.00.0
09/14/2015411Beach Advisory0.00.91.20.12.2
08/15/2015613Beach Advisory0.30.30.00.00.6
07/11/201533Acceptable0.00.01.20.01.2
06/13/2015131Beach Advisory0.01.30.00.01.3
05/14/2015649Beach Advisory0.00.00.10.00.1
10/16/2014276Beach Advisory0.30.10.00.00.4
09/10/2014548Beach Advisory0.00.00.00.00.0
08/14/2014141Beach Advisory0.00.10.00.00.1
07/10/2014479Beach Advisory0.01.70.40.32.4
06/15/20142420Beach Advisory0.00.50.50.11.1
05/15/201457Acceptable0.10.10.00.00.2
10/21/2013130Beach Advisory0.00.00.00.20.2
09/21/2013830Beach Advisory0.00.00.00.00.0
08/19/20131733Beach Advisory0.00.00.00.00.0
07/21/201364Beach Advisory0.00.00.00.00.0
06/24/20131300Beach Advisory1.40.00.00.01.4
06/04/2013461Beach Advisory0.00.01.10.11.2
10/15/2012770Beach Advisory0.40.50.00.11.0
09/15/20121300Beach Advisory0.10.00.00.00.1
08/18/2012461Beach Advisory0.00.10.00.20.3
07/21/2012>2420Beach Advisory0.00.00.00.20.2
06/16/20121023Beach Advisory0.00.00.00.20.2
05/20/2012238Beach Advisory0.00.00.00.00.0
10/16/20112420Beach Advisory0.00.11.10.31.5
09/19/201168Beach Advisory0.00.00.00.10.1
08/21/2011142Beach Advisory0.40.00.00.00.4
07/14/201133Acceptable0.00.30.00.00.3
07/02/20114Acceptable0.00.01.01.12.1
05/19/201196Beach Advisory0.80.20.10.51.6
10/16/2010128Beach Advisory0.01.00.30.01.3
09/14/2010>2420Beach Advisory0.00.00.00.00.0
08/21/201026Acceptable0.00.10.10.00.2
07/19/201042Acceptable0.00.20.50.00.7
06/18/2010479Beach Advisory0.00.00.20.00.2
05/25/2010117Beach Advisory0.00.00.00.00.0
10/23/200932Acceptable0.00.00.00.00.0
09/17/2009416Beach Advisory0.00.00.00.00.0
08/24/20091986Beach Advisory0.00.31.01.52.8
07/31/20092420Beach Advisory0.60.31.00.01.9
05/15/200948Acceptable0.00.50.00.00.5
10/23/200812Acceptable0.00.20.10.00.3
09/18/20088Acceptable0.00.00.00.00.0
08/09/200812Acceptable0.00.01.30.21.5
07/17/200821Acceptable0.00.00.00.10.1
06/19/200827Acceptable0.00.40.10.91.4
05/22/200850Acceptable0.20.00.00.00.2

Entero Count (fecal indicator) and Rainfall Correlation

58 Samples taken

All Water Quality Parameters

58 Samples taken

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

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

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

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

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

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%).

SortSortSortSortSortSortSortSort
09/14/2017727Beach Advisory70.80.22.34.2109.4
08/17/20172421Beach Advisory77.50.20.95.8109.5
07/13/20172420Beach Advisory75.70.10.823.3101.9
06/15/201789Beach Advisory73.70.1213.7109.1
05/18/201732Acceptable64.60.11.318.4107.6
10/18/20161046Beach Advisory63.10.21.233110
09/17/20161986Beach Advisory73.10.21n/a111
08/18/20162420Beach Advisory82.20.11.325108
07/16/2016461Beach Advisory81.20.20.819109
06/18/201610Acceptable72.80.20.117119
05/23/201613Acceptable65.40.10.222108
10/15/2015517Beach Advisory60.40.24.64117
09/14/2015411Beach Advisory73.90.21.25100
08/15/2015613Beach Advisory78.60.21.28102
07/11/201533Acceptable76.40.11.923108
06/13/2015131Beach Advisory73.50.21.816106
05/14/2015649Beach Advisory68.50.11.317n/a
10/16/2014276Beach Advisory62.30.27.431103
09/10/2014548Beach Advisory74.60.10.312100
08/14/2014141Beach Advisory75.50.21.27102
07/10/2014479Beach Advisory77.30.10.621103
06/15/20142420Beach Advisory65.70.11.7202111
05/15/201457Acceptable64.50.10.720102
10/21/2013130Beach Advisory58.90.11.7105100
09/21/2013830Beach Advisory68.50.22.125103
08/19/20131733Beach Advisory75.10.20.749102
07/21/201364Beach Advisory82.30.22.325105
06/24/20131300Beach Advisory73.70.11.119103
06/04/2013461Beach Advisory70.30.10.425102
10/15/2012770Beach Advisory570.23.7n/a99
09/15/20121300Beach Advisory72.30.20.77103
08/18/2012461Beach Advisory79.10.20.812100
07/21/2012>2420Beach Advisory80.50.22.324108
06/16/20121023Beach Advisoryn/an/an/an/an/a
05/20/2012238Beach Advisory68.30.10.89105
10/16/20112420Beach Advisory60.20.21.548101
09/19/201168Beach Advisory64.70.10.84098
08/21/2011142Beach Advisory77.30.11.935101
07/14/201133Acceptable77.50.17.144n/a
07/02/20114Acceptable74.10.1123n/a
05/19/201196Beach Advisoryn/an/an/an/an/a
10/16/2010128Beach Advisory55.10.11.128102
09/14/2010>2420Beach Advisory690.13.8596
08/21/201026Acceptable76.60.21.8n/a98
07/19/201042Acceptable80.50.12.7387
06/18/2010479Beach Advisory71.20.24.420100
05/25/2010117Beach Advisory73.10.21.8185115
10/23/200932Acceptablen/an/an/an/an/a
09/17/2009416Beach Advisory680.12.26104
08/24/20091986Beach Advisory78.80.21.253108
07/31/20092420Beach Advisory760.21.588107
05/15/200948Acceptable63.3n/a1.48109
10/23/200812Acceptable53.60.21.812105
09/18/20088Acceptablen/an/an/an/an/a
08/09/200812Acceptablen/an/an/an/an/a
07/17/200821Acceptable800.22.717109
06/19/200827Acceptablen/an/an/an/an/a
05/22/200850Acceptable59.40.211.224103

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:

Waterford, NY
This site is below the last Erie Canal lock. It has boating, kayaking, subsistence and recreational fishing from boats and the shore. There is also occasional swimming.

Agencies Responsible:

Albany County Dept. of Health: 518-447-4580, Schenectady County Dept. of Health: 518-386-2818 and NYSDEC Region 4: 518-357-2045

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