From Marianne.E.Hubert at maine.gov  Mon May 14 16:01:08 2007
From: Marianne.E.Hubert at maine.gov (Hubert, Marianne E)
Date: Mon, 14 May 2007 16:01:08 -0400
Subject: [stormwaterengineering] Phosphorus Manual and other guidelines
Message-ID: <6A73A5DE6596754DB4575B71972AA460016306A9@SOM-TEAQASMAIL2.som.w2k.state.me.us>


Hello everyone, 
This is our first posting!

The phosphorus manual and worksheets are now ready for use. It is not
yet in its final format and is still a draft; however you may use it for
your designs. Please provide us your comments and any suggested changes.
 <<Volume II phosphorus.doc>>  <<Phosphorus Worksheets.xls>> 

We have been approving a new version of the filter BMPs which is the
direct infiltration and filtration of roof runoff at the dripline edge
of a roof. The following guidelines establish the general standards by
which you need to design these structures. Again, let us know what you
think. 
 <<inforsheet ROOF EDGE DRIP LINE guidelines.doc>> 

We have also started to see a few pervious pavement designs and
artificial turf athletic fields. These are the designs to use if you
would like to use one of these structures.
 <<inforsheetPERVIOUS PAVEMENT guidelines.doc>> 

There will be more to come such the design standards for green roofs,
Stormtreat and the Contech filter system.
Have a nice spring,
Marianne

Marianne Hubert
Senior Environmental Engineer
Division of Watershed Management
Bureau of Land and Water Quality Control
17 State House Station
Augusta, ME 04333
ph. (207) 287-4140

 
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From Donald.T.Witherill at maine.gov  Wed May 30 17:05:20 2007
From: Donald.T.Witherill at maine.gov (Witherill, Donald T)
Date: Wed, 30 May 2007 17:05:20 -0400
Subject: [stormwaterengineering] FW: roof dripline filtration BMP
Message-ID: <B36862725AE664449B02EBDB9A1B243F014046EF@SOM-TEAQASMAIL2.som.w2k.state.me.us>

In response to Pat Clark's message below, the minimum thickness should
be 12 inches of soil filter media.
 
Donald T. Witherill, Director 
Division of  Watershed Management 
Maine Department of Environmental Protection 
Tel.:  207-287-7725 
Fax:  207-287-7826 
E-Mail:  donald.t.witherill at maine.gov 


________________________________

From: Clark, Pat [mailto:Pat.Clark at stantec.com] 
Sent: Thursday, May 24, 2007 10:02 AM
To: stormwaterengineering at lists.maine.gov
Subject: roof dripline filtration BMP


hello
 
i was reviewing the interim roof dripline BMP and would like to use it
on a residential subdivision project.  I have a question on the
"treatment filter" section of the design criteria.  This section
indicates a minimum thickness of 4 inches for filter media.  The
accompanying detail shows 12 inches of soil filter media.  Please
confirm minimum thickness.
 
Patrick L. Clark, PE, CPESC
Senior Civil Engineer
Stantec
22 Free Street Suite 205
Portland ME 04101-3900
Ph: (207) 775-3211 Ext. 139
Fx: (207) 775-6434
pat.clark at stantec.com 
stantec.com <http://www.stantec.com/>  
 
The content of this email is the confidential property of Stantec and
should not be copied, modified, retransmitted, or used for any purpose
except with Stantec's written authorization. If you are not the intended
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