From: HAFLEY Dan

Sent: Wed Jul 26 09:47:51 2017

To: 'Susan Hansen'

Cc: DECONCINI Nina; SEIDEL Paul; POULSEN Mike

Subject: Floragon Dip Tank Area remedy and Bear Creek

Importance: Normal

Susan –

Sorry to have missed your questions; I am now back in the office. You are correct that any cleanup of Bear Creek on the Floragon site would need to consider the potential for recontamination, specifically from Bear Creek east of Molalla Avenue on the former Avison property. Fortunately, data from multiple sampling events with the Avison creek segment indicate that dioxins are generally below the cleanup standard of 120 parts per trillion. There is a slight exceedance at one location within the creek, that DEQ has indicated will require removal. Timing of that removal will have to be considered with respect to work in the Floragon Bear Creek segment.

The potential for recontamination of the Floragon Bear Creek segment will absolutely be considered, and we can provide more information as cleanup plans for Bear Creek segments on both sites “mature”.

Respectfully,

Dan Hafley