Water Quality
Water Quality > Water Quality Testing Locations > Rockland County & Westchester County > Furnace Brook

Furnace Brook

Furnace Brook

About this location:

Cortlandt, NY
The Hudson, off Furnace Brook, has recreational and subsistence fishing, as well as kayaking, and swimming from recreational boats.

Agencies Responsible:

Westchester County Dept. of Health: 914-813-5000 and NYSDEC Region 3: 914-428-2505

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Basic Sampling Data

Physical, chemical and biological properties of the surface water that are measured continuously while the patrol boat is underway.

Water Quality, Enterococcus Count and Precipitation

42 Samples taken

Sample Date [i] Enterococcus
Count
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Enterococcus Count

Enterococcus is a commonly used indicator of water quality and sewage contamination.

Quality Rain, day
of (in)		 Prior Day 2 Days
Prior		 3 Days
Prior		 5 Days
Prior
10/11/2012 52 Possible Risk 0.0 0.1 0.1 0.1 0.2
09/11/2012 10 Acceptable 0.0 0.0 0.0 1.4 2.1
08/14/2012 41 Possible Risk 0.0 0.0 0.0 0.0 0.2
07/17/2012 10 Acceptable 0.0 0.0 0.2 0.2 0.2
06/12/2012 63 Possible Risk 0.5 0.5 0.6 0.6 0.6
05/16/2012 <10 Acceptable 0.1 0.4 0.5 0.5 0.5
10/20/2011 160 Unacceptable 0.0 0.1 0.1 0.1 0.1
09/15/2011 4106 Unacceptable 0.0 0.0 0.0 0.0 0.0
08/17/2011 <10 Acceptable 0.0 0.0 0.0 3.4 3.4
07/18/2011 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
06/28/2011 <10 Acceptable 0.0 0.0 0.0 0.0 1.1
05/17/2011 2481 Unacceptable 1.2 1.2 2.0 2.0 2.0
10/13/2010 <10 Acceptable 0.0 0.1 0.3 0.3 0.3
09/12/2010 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/18/2010 <10 Acceptable 0.0 0.0 0.2 0.5 0.5
07/22/2010 132 Unacceptable 0.0 0.1 0.1 1.5 1.5
06/16/2010 10 Acceptable 0.0 0.0 0.0 0.1 0.1
05/22/2010 <10 Acceptable 0.0 0.0 0.0 0.0 1.6
10/20/2009 <10 Acceptable 0.0 0.0 0.0 0.0 0.3
09/15/2009 <10 Acceptable 0.0 0.0 0.0 0.0 0.3
08/21/2009 10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/29/2009 31 Acceptable 0.6 0.6 0.6 0.8 1.1
06/23/2009 <10 Acceptable 0.0 0.0 0.6 0.7 3.5
06/08/2009 <10 Acceptable 0.0 0.0 0.0 0.8 1.7
05/13/2009 6 Acceptable 0.0 0.0 0.0 0.0 0.3
10/21/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
09/23/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
08/21/2008 <10 Acceptable 0.0 0.0 0.0 0.0 0.0
07/15/2008 45 Possible Risk 0.0 1.1 1.1 1.1 1.1
06/25/2008 337 Unacceptable 0.0 0.0 0.0 0.1 0.3
06/16/2008 185 Unacceptable 0.0 0.0 1.7 1.7 1.7
05/20/2008 41 Possible Risk 0.0 0.0 0.2 0.3 1.2
09/09/2007 19 Acceptable 0.0 0.0 0.0 0.0 0.0
08/23/2007 19 Acceptable 0.0 0.0 1.3 1.4 1.5
07/16/2007 8 Acceptable 0.0 0.0 0.0 0.0 1.0
06/28/2007 10 Acceptable 0.0 0.7 0.7 0.7 0.7
06/20/2007 6 Acceptable 0.1 0.5 0.5 0.5 0.5
05/21/2007 11 Acceptable 0.0 0.0 0.2 0.2 1.1
04/25/2007 29 Acceptable 0.0 0.0 0.0 0.0 0.0
12/06/2006 50 Possible Risk 0.0 0.0 0.0 0.0 0.2
10/20/2006 34 Acceptable 0.4 0.5 0.5 1.6 1.6
09/19/2006 28 Acceptable 0.0 0.0 0.0 0.0 1.7

Basic Sampling Data

42 Samples taken

Sample Date [i] Enterococcus
Count
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Enterococcus Count

Enterococcus is a commonly used indicator of water quality and sewage contamination.

Quality Temperature
(f)		 Salinity Chlorophyll Turbidity Oxygen
10/11/2012 52 Possible Risk 64.1 3.9 5.2 23.8 94.0
09/11/2012 10 Acceptable 75.5 5.1 5.1 104 94
08/14/2012 41 Possible Risk 81.1 6.7 3.8 16 85
07/17/2012 10 Acceptable 84.2 7.3 13.6 6 113
06/12/2012 63 Possible Risk 72.8 0.7 3.4 60 93
05/16/2012 <10 Acceptable 66.9 0.2 4.6 23 114
10/20/2011 160 Unacceptable 63.6 0.1 1.4 208 91
09/15/2011 4106 Unacceptable 70.0 0.1 1.8 121 83
08/17/2011 <10 Acceptable 83.8 3.7 4.6 31 103
07/18/2011 <10 Acceptable 83.4 1.2 5.8 17 n/a
06/28/2011 <10 Acceptable 79.6 1.5 7.2 54 98
05/17/2011 2481 Unacceptable 62.2 0.3 n/a n/a 99
10/13/2010 <10 Acceptable 65.4 0.1 4.7 24 87
09/12/2010 <10 Acceptable 73.0 5.3 8.4 23 85
08/18/2010 <10 Acceptable 83.1 5.8 5.1 89 91
07/22/2010 132 Unacceptable 83.7 6.2 20.9 42 151
06/16/2010 10 Acceptable 73.3 5.1 6.5 34 87
05/22/2010 <10 Acceptable 67.9 3.6 4.2 19 94
10/20/2009 <10 Acceptable 59.1 4.0 3.4 17 90
09/15/2009 <10 Acceptable 77.4 4.4 4.8 17 110
08/21/2009 10 Acceptable 83.4 2.8 7.9 12 96
07/29/2009 31 Acceptable 79.3 0.8 5.6 31 89
06/23/2009 <10 Acceptable 73.1 0.1 0.9 19 110
06/08/2009 <10 Acceptable n/a n/a n/a n/a n/a
05/13/2009 6 Acceptable 64.7 0.3 2.6 26 112
10/21/2008 <10 Acceptable 62.8 6.5 3.2 10 89
09/23/2008 <10 Acceptable 74.6 4.2 2.5 8 95
08/21/2008 <10 Acceptable 78.8 3.7 4.9 10 92
07/15/2008 45 Possible Risk 82.1 4.5 4.3 18 116
06/25/2008 337 Unacceptable 77.3 4.5 2.9 17 91
06/16/2008 185 Unacceptable n/a n/a n/a n/a n/a
05/20/2008 41 Possible Risk 59.1 2.1 1.5 41 97
09/09/2007 19 Acceptable 81.9 7.5 3.5 25 109
08/23/2007 19 Acceptable 75.3 5.7 2.8 16 88
07/16/2007 8 Acceptable 81.8 5.8 3.6 25 103
06/28/2007 10 Acceptable n/a n/a n/a n/a n/a
06/20/2007 6 Acceptable n/a n/a n/a n/a n/a
05/21/2007 11 Acceptable 63.5 0.2 1.6 60 96
04/25/2007 29 Acceptable 49.3 0.1 0.4 338 107
12/06/2006 50 Possible Risk 44.6 0.1 1.1 13 96
10/20/2006 34 Acceptable n/a n/a n/a n/a n/a
09/19/2006 28 Acceptable n/a n/a n/a n/a n/a

Rainfall data comes from wunderground.com. It is added daily to show cumulative amounts.

Acceptable Color
Enterococcus count (under 35/100ml) is acceptable by EPA standards*
Possible Risk Color
Enterococcus count (between 35 and 104/100ml), if sustained over time, would be unacceptable by EPA standards*
Unacceptable Color
Enterococcus count (over 104/100ml) is unacceptable by EPA standards*

What do the Numbers Mean?

We have based our assessment of acceptable water quality on the federal guidelines outlined in the 2000 Beaches Environmental Assessment and Coastal Health (BEACH) Act. Learn More