From: Jennifer Cline
Sent: Fri Oct 16 10:08:43 2015
To: Jason Clifford
Subject: FW: Seepage calculation data.
Importance: Normal
Attachments: Mollala Seepage.xlsx; fyi Jennifer Cline, P.E. | Public Works Director Licensed in OR, WA 117 N Molalla Ave. | PO Box 248 * |Molalla, OR 97038 O: 503.759.0218 | F: 503.829.3676 From: BAILEY Randall [mailto:Bailey.Randall@deq.state.or.us] Sent: Friday, October 16, 2015 8:27 AM To: 'Jennifer Cline' <jcline@cityofmolalla.com> Cc: COLE David <COLE.David@deq.state.or.us> Subject: FW: Seepage calculation data. I received your voice mail. No problem. I will include you on all communications. Here is the e-mail with the attachment. I just simplified the calculations to an average over the 16 day period. That is really what we want anyway. If you have any questions, please call. Thank you! Randy Bailey NW Region, OR DEQ 503-229-5019 bailey.randall@deq.state.or.us From: BAILEY Randall Sent: Wednesday, October 14, 2015 4:36 PM To: 'jclifford@cityofmolalla.com' Cc: COLE David Subject: Seepage calculation data. Jason, Thanks for the information and the tour today. Your plant is well, interesting. Definitely not a typical design by today’s standards, but your results show that you are making it work and that is what counts. I apologize for the confusion with the guidance and the especially the data sheet. That will get some work before I ask anyone to use it. To try to wrap this up, I made spreadsheet that will calculate the total and average seepage from the lagoons for the test period. I think this calculation is much more straightforward than using the other sheet. Please enter the data into the yellow highlighted cells and return it to me. And there are couple of questions that I want to verify to be sure I got them correct: Is effluent from Lagoon 2 the total of flows for both the on-site and Off-site pumps? Is "Influent" for Lagoon 1 the totalized reading from the Parshall Flume? Is there another flow meter in the system? Leakage from the DAF to the aeration basin is loss from Lagoon 2 (leaves lagoon2 but does not make it to the pump meters) that then becomes unmetered gain to Lagoon 1, correct? Thank you, again. If you have any questions about what goes into the spreadsheet, please ask! Randy Bailey - Water Quality Permitting Oregon Department Of Environmental Quality Northwest Regional Office 503-229-5019 bailey.randall@deq.state.or.us DEQ's Northwest Region Office has moved to a new location. We are now located at the 700 Lloyd Building at 700 NE Multnomah St., Suite #600, Portland, OR 97232.