From: KENT Mavis D
Sent: Wed Dec 20 10:35:29 2006
To: 'Chaput, Kenneth G'
Cc: Sarah Prowell; Chris Kimmel; John Cushing; Eric Weber
Subject: RE: BOP and PWB Pumping
Importance: Normal
Well, I wondered what kind of response you wanted. The full email makes more sense.
I think it sounds like a good step to give a little more definition to that outer plume lobe by installing the monitoring wells you suggest. I will look forward to your proposal in January.
Mavis D. Kent
Cleanup & Emergency Response Section
DEQ Northwest Region - East Side Office
1550 NW Eastman Parkway, Suite 290
Gresham, Oregon 97030
503-667-8414 X55008
503-674-5148 Fax
kent.mavis.d@deq.state.or.us
-----Original Message-----
From: Chaput, Kenneth G [mailto:kenneth.g.chaput@boeing.com]
Sent: Wednesday, December 20, 2006 10:33 AM
To: KENT Mavis D
Cc: Sarah Prowell; Chris Kimmel; John Cushing; Eric Weber
Subject: BOP and PWB Pumping
Mavis,
I apologize for the chopped email you received. Our email system kept dropping my connection yesterday and I thought the entire email had been sent. Here we go again.
To follow up on our conference call from late November - early December about the effects of PWB pumping on the remediation of the TSA. As previously discussed, the September and October analytical results for BOP 22(ds) show a dramatic decrease in TCE concentrations relative to the previous trends. Although we expect the concentrations to rebound over the next couple of months, the Boeing and Cascade team have reviewed the data and concur with you that since we don't have clean monitoring wells beyond BOP 22 it seems appropriate to install a couple of monitoring wells to better define the outer limit of the plume in the northwest corner of the upper TSA. In January we will prepare a work plan for your review to install two monitoring wells at locations north (along 185th Ave NE) and west (along Sandy Blvd) of BOP 22.
Please contact me if you have any concerns or questions.
Ken Chaput
SSG Environmental Remediation
Toronto Cell Phone: 416-420-7178
Seattle Cell Phone: 206-290-6545
kenneth.g.chaput@boeing.com