From: Jennifer Cline

Sent: Thu Jun 04 16:18:29 2015

To: Fasth, Bill

Cc: Phillip Bender; Jason Clifford

Subject: RE: GPS elevation measurements?

Importance: Normal

Attachments: SSO Zone_11x17_Full_WWTP_Plan_and_Trunk_Line_Sheet2.pdf;

Hi Bill,

Here's a drawing to help support what Dan and I were able to measure today.

The plan is apparently correct in that we only found about a 2.25' difference in elevation between the top of asphalt at the AB to the overflow point at the berm. On the Southside of the AB the overflow extended approx.. 37.5 before reaching the 2.25' elevation above the AB.

See attached. I will give you a quick call as well.

Jennifer Cline, P.E.

City of Molalla

Public Works Director

O: 503.759.0218

F: 503.829.3676

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

From: Fasth, Bill [mailto:bfasth@BrwnCald.com]

Sent: Thursday, June 04, 2015 3:37 PM

To: 'Jennifer Cline'

Cc: Phillip Bender

Subject: GPS elevation measurements?

Jennifer,

Just wondering if there are any updates to the possibility of getting GPS elevation measurements. We would need two measurements:

* Standing at the edge of the AB

* Standing on top of the grassed berm

The berm height can be calculated as the difference between the two measurements.

I realize that there may be some variation so maybe taking three readings from the AB edge and three readings from the top of the berm would suffice. How does that sound?

Bill

Bill Fasth

6500 SW Macadam Avenue, Suite 200

Portland, Oregon 97239

bfasth@brwncald.com<mailto:bfasth@brwncald.com>

Cell 541.602.9110

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