Document ID: EPA-HQ-OW-2004-0032-0281
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2005-08-18T04:00Z

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ÃÃTo:ÄÄÁØ	Ø	ÁBetsy Bicknell <Betsy.Bicknell@erg.com>
ÃÃDate: ÄÄÁØ	Ø	Á5/27/05 4:15:01 PM
ÃÃSubject: ÄÄÁØ	Ø	ÁFw: Additional Creosote Storm Water Data

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Ð (#€%Ø'0*ˆ,à.813è5@8˜:ð<H? AøCPF¨HKXM°OR`T¸VYh[À]`°ÐÐBetsy:

Please post this in the 2006 Plan record. Thanks.

Carey
x1014

----- Forwarded by Carey Johnston/DC/USEPA/US on 05/27/2005 04:06 PM
-----
                                                                        
             Carey                                                      
             Johnston/DC/USEP                                           
             A/US                                                    To 
                                      Martin Rollins                    
             05/27/2005 04:06         <martinrollins@hmrollins.com>     
             PM                                                      cc 
                                                                        
                                                                Subject 
                                      Re: Additional Creosote Storm     
                                      Water Data(Document link: Carey   
                                      Johnston)                         
                                                                        
                                                                        
                                                                        
                                                                        
                                                                        
                                                                        

Dear Martin:

No need to gather the additional data. Your statement: "It would be
reasonable to assume a similar runoff area and runoff coefficient." is
what I need. Thank you again for your help.

Carey
x1014

                                                                        
             Martin Rollins                                             
             <martinrollins@h                                           
             mrollins.com>                                           To 
                                      Carey Johnston/DC/USEPA/US@EPA    
             05/27/2005 02:19                                        cc 
             PM                                                         
                                                                Subject 
                                      Re: Additional Creosote Storm     
                                      Water Data                        
                                                                        
                                                                        
                                                                        
                                                                        
                                                                        
                                                                        

Carey,  It would be  reasonable to assume a similar runoff area and
runoff
coefficient.  Most of the sampled facilities are large, from an industry
perspective, and of similar land area, covering maybe 50 acres.  Even
the
facility that I would characterize as small from a production
perspective
still has a large runoff area.  Since the flow weighted and non-flow
weighted TWF values are not substantially different I don't know that
trying
to get more precise is worth the effort, but if you think it is
important we
can try to get the actual areas.

Martin Rollins, P. E.
H. M. Rollins Company, Inc.
228-832-1738
----- Original Message -----
From: <Johnston.Carey@epamail.epa.gov>
To: <martinrollins@hmrollins.com>
Cc: "Betsy Bicknell" <Betsy.Bicknell@erg.com>;
<Matuszko.Jan@epamail.epa.gov>; <jan.mat@verizon.net>;
<Smith.Marla@epamail.epa.gov>
Sent: Friday, May 27, 2005 11:31 AM
Subject: Fw: Additional Creosote Storm Water Data

> Dear Martin:
>
> Thank you very much for the data. I've highlighted to my management
your
> participation and assistance in our effluent guidelines review as a
> model. Our goal is to use sound data for sound decisions. Your
> assistance helps us with this goal.
>
> I do have one question with the flow-weighted calculations in your
> spreadsheet that use rainfall inches and not rainfall volume
discharges.
> Can we assume that the ten facilities that participated in the
> industry-led sampling have equal or similar acreage and runoff
> conditions (e.g., soil type, % imperviousness) such that an inch of
> rainfall will produce a similar amount of stormwater volume. Thanks!
>
> Carey A. Johnston, P.E.
> U.S. EPA, Office of Water
> ph: (202) 566 1014
> fx: (202) 566 1053
> johnston.carey@epa.gov
>
> ----- Forwarded by Carey Johnston/DC/USEPA/US on 05/27/2005 12:10 PM
> -----
>
>              Martin Rollins
>              <martinrollins@h
>              mrollins.com>
To
>                                       Carey Johnston/DC/USEPA/US@EPA
>              05/27/2005 10:32
cc
>              AM
>
Subject
>                                       Additional Creosote Storm Water
>                                       Data
>
>
>
>
>
>
>
>
>
>
> Carey,  The attached files are electronic versions of what we are
> sending you by mail today.  Since we last talked I did receive the
> rainfall data for the other facilities, so we now have data for all
the
> sampled events.  If you have any questions on this additional data
> please give me a call.
>
> Martin Rollins, P. E.
> H. M. Rollins Company, Inc.
> 228-832-1738(See attached file: careyjohnston.pdf)(See attached file:
> swparticipantlist.pdf)(See attached file: Exhibit 2 Revised.xls)(See
> attached file: Flow Weighted TWF1.xls)

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ÃÃCC:ÄÄÁØ	Ø	Á<Matuszko.Jan@epamail.epa.gov>, <jan.mat@verizon.net>, <Teresa.Medley@erg.com>