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How = span class=3DGramE>To Use USGS Stream Stats

Use =
USGS
Stream Stats to check if the water feature drains over 50 acres = /span>

** I=
t is
only necessary to check stream stats when there is a small headwater stream=
or
ditch onsite and the 50 acre threshold is essential to determine if FHA
regulations will apply. Use your best judgement of the location of the site=
in
the watershed to determine if stream stats needs to be consulted or not. Mo=
re
often, stream stats is consulted AFTER a field v=
isit
when a feature is encountered that wasn’t obvious on GIS**

![if !supportLists]>o&nb=
sp; 
![endif]>Click on this link:  http://water=
.usgs.gov/osw/streamstats/new_jersey.html

![if !supportLists]> = span style=3D'mso-list:Ignore'>o&nb=
sp; 
![endif]>Or google “stream stat=
s nj

![if !supportLists]>o  
![endif]> ![if !vml]> ![endif]>Click on interactive map

 

 

 

![if !supportLists]>·      =
  
![endif]>Find
the location by scrolling to the site and clicking on the point in the water
feature where you want to delineate the drainage area. (Tip: turn on
“Topographic images” layer in GIS to help locate the site)  Click the Delineation Results button. = o:p>

![if !vml]> ![endif]>

![if !supportLists]>·      =
  
![endif]>Then,
Select “Compute Basin Characteristics” on the bottom left
![if !vml]> ![endif]>

 

![if !supportLists]>·      =
  
![endif]>Unselect
“ALL” and select “DRNAREA” and click on “Compute Basin Characteristics

![if !vml]>

![endif]>

![if !supportLists]>·      =
  
![endif]> ![if !vml]>

![endif]>

The result will show the =
value
in square miles.  Convert the square
miles to acres
(50 acres =3D 0.078 square miles). If it is more than 0.078 square miles, t=
hen it
drains over 50 acres

 

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