Sounds like potentially viable minimization and addressing a supply 
issue.  It also sound a lot like "treatment"....   Curious to know if 
operator is a TSDF and how others have grappled with the "treatment" 
interpretation for those who are only LQGs.

Steve Crooks, MS, CIH, CSP
Mgr., Occupational Health & Environment
RTI International
Occupational Health and Environment
Bldg 11 203B
3040 Cornwallis Road POB 12194
Research Triangle Park, NC 27709-2194
TEL 919.316.3910
FAX 919.541.1222
=A0


-----Original Message-----
From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**list.uvm.edu] On Behalf Of 
List Moderator
Sent: Wednesday, March 18, 2009 11:00 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: Re: [DCHAS-L] Procuring Acetonitrile

From: Carolyn Sampson 
Date: March 18, 2009 10:41:27 AM EDT (CA)
Subject: RE: [DCHAS-L] Procuring Acetonitrile

We started capturing our waste and distilling it several years ago as  
a cost savings so we have inadvertently protected ourselves at least a  
little.  We use a simple benchtop still (located in a hood).  You need  
to account for the water content.  (84% acetonitrile, 16% water)

Also, depending on your sensitivity needs, you can simply re-use the  
waste.  That causes a baseline shift, of course, but you can sometimes  
deal with that for a short while.

Good luck!

Carolyn
Carolyn J. Sampson, Ph.D.
Environmental Manager & Chemical Hygiene Officer
Division of Innovation, Technology and Quality
General Mills, Inc.

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