From: Andy Peters

Sent: Thu Dec 06 14:30:52 2018

To: Bob Dillard

Cc: Gerald Fisher; Jake Ehredt; James Clifton

Subject: Ammonia

Importance: Normal

Bob, we are running into Ammonia issues this month. Ever test we’ve done is coming in over the daily limit. We’ve sent a split sample in to Edge Laboratories, but the test is not rocket science, and our equipment was just calibrated. We have two questions (copying Ryan Q for help).

1. 1. Based on the permit it’s not clear how frequently we should be testing for Ammonia (NH3-N)
2. 2. Assuming we have high ammonia, how do we troubleshoot the plant?

Thanks,

Andy Peters

City of Molalla

Public Works Operations Supervisor

(503) 829-6855 x220

Cell: 503-793-0507

apeters@cityofmolalla.com

117 N Molalla Ave

Molalla, OR 97038