Hi Paul,
The soil surface of the interim soil management unit is still too wet to support heavy equipment, so we have the time it takes to dry the soil out. I would say a couple weeks if the rain will ease off somewhat.
This time-frame assumes that the PPA for Lot 11 will not be held back pending completion of the cap on Lot 6.
Thank you,
Paul Trone
Senior Geologist
503-452-5561 ph
503-522-7880 cel
“This communication may contain privileged and/or confidential information. It is intended solely for the use of the addressee. If you are not the intended recipient, you are strictly prohibited from disclosing, copying, distributing or using any of this information. If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act. You may not directly or indirectly reuse or redisclose such information for any purpose other than to provide the services for which you are receiving the information.”
From: SEIDEL Paul [mailto:SEIDEL.Paul@deq.state.or.us]
Sent: Friday, February 12, 2016 8:56 AM
To: Paul Trone <pault@evren-nw.com>
Subject: RE: Townsend Farms - Soil Sampling Results for Lot 6
Paul-
Please advise on any applicable schedule constraints. Given current work priorities it may take a bit to turn this question around. I’ll try and socialize this issue as soon as I can.
From: Paul Trone [mailto:pault@evren-nw.com]
Sent: Friday, February 12, 2016 8:50 AM
To: SEIDEL Paul
Subject: Townsend Farms - Soil Sampling Results for Lot 6
Hi Paul,
Attached is our summary of analytical data for soil for the incremental sampling of the two DUs at Lot 6. These data were compared to:
· DEQ’s RBCs for soil ingestion, dermal contact, and inhalation, occupational scenario
· Site-specific RBCs for selected constituents (chlordane, DDT, dieldrin, and heptachlor epoxide) derived from EPCs and cancer risk provided in PASCOE’s Human Health Risk Assessment for incidental ingestion and dermal contact, adult industrial scenario
· Background concentrations for metals
· Clean fill screening levels
· Surrogate screening level values derived in PASCOE’s Ecological Risk Assessment
Results of this screening indicated:
· no exceedances of RBCs,
· one slight exceedance of an SLV for DDT in DU6S,
· one slight exceedance of background copper in DU6N
· exceedances of CFSLs for DDD, DDE, DDT, and dieldrin in all of the samples
While the soils need to continue to be managed from an erosion control standpoint, it would appear that a cap over the interim soil management unit is not needed for protection of human health or protection of ecological receptors. What are your thoughts?
Thank you,
Paul Trone
Senior Geologist
503-452-5561 ph
503-522-7880 cel
“This communication may contain privileged and/or confidential information. It is intended solely for the use of the addressee. If you are not the intended recipient, you are strictly prohibited from disclosing, copying, distributing or using any of this information. If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act. You may not directly or indirectly reuse or redisclose such information for any purpose other than to provide the services for which you are receiving the information.”