From: Susan Hansen

Sent: Tue Dec 29 16:25:11 2015

To: YELTON-BRAM Tiffany

Cc: DECONCINI Nina

Subject: RE: Bear Creek wastewater discharge

Importance: Normal

Curious if they are continuing to discharge - did they stop when the rain stopped for a couple of days? I hope DEQ is taking this very seriously. Please keep me updated on what you find out. Thanks, Susan

-----Original Message-----

From: yelton-bram.tiffany@deq.state.or.us

Sent: Wed, 30 Dec 2015 00:03:09 +0000

To: foxglovefarm@inbox.com

Subject: RE: Bear Creek wastewater discharge

Hello Susan

The rule that applies here is the bacteria standard (OAR 340-041-0009(6) and (7)) which prohibits the discharge of raw sewage except

during a winter storm event greater than the one-in-five-year, 24-hour duration storm. The city’s NPDES permit also has a condition about bypass of the treatment system which applies in this case. I’ve attached a copy of the permit; see schedule F, Condition B3.

I need to work with my staff to understand the process for determining if a one-in-five-year, 24 hour duration storm has occurred and when it starts and stops so I don’t have a good explanation of that right now but I will try to provide it soon. The process is documented in an Internal Management Directive. We use NOAA and USGS weather stations for rainfall measurement and duration.

I hope that this answers some of your questions.

Link to bacteria standard

http://arcweb.sos.state.or.us/pages/rules/oars_300/oar_340/340_041.html

Tiffany Yelton Bram

WQ Source Control Manager

Oregon Department of Environmental Quality

700 NE Multnomah St., Suite #600

Portland OR 97232

Desk 503 229 5219

Mobile 503 975 0046

From: Susan Hansen [mailto:foxglovefarm@inbox.com]

Sent: Tuesday, December 29, 2015 12:39 PM

To: YELTON-BRAM Tiffany

Cc: DECONCINI Nina

Subject: Bear Creek wastewater discharge

Dear Tiffany,

I failed to note exactly what the rule was about when a violation period would end and a new one might begin on the issue of Molalla's discharge of wastewater into Bear Creek. You mentioned there would have to be a certain period of dry weather and then if discharge had to continue or begin again it would trigger another violation. Could you please furnish the exact way that rule goes and tell me how DEQ keeps track of that issue of a period without rainfall?

Thanks,

Susan Hansen

Bear Creek Recovery