From: Jennifer Cline
Sent: Tue Oct 13 15:34:17 2015
To: Mark Strandberg; Christine Hein; J.W. Ring
Subject: FW: Molalla leak test report review questions.
Importance: Normal
Attachments: Leak Test 2015.xlsx; 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: Jason Clifford [mailto:jclifford@cityofmolalla.com] Sent: Wednesday, September 30, 2015 2:57 PM To: Jennifer Cline <jcline@cityofmolalla.com> Subject: RE: Molalla leak test report review questions. Hello Jennifer, I was looking at the leak test results and I did some editing. In the Influent inches/day column, Lagoon #1 and #2 influent totals were changed to reflect what actually occurred. From 8/18 to 8/29, no influent went into lagoon #2 as you can see from Lagoon #1 effluent. From 8/14 to 8/17, there was some effluent going from #1 to #2. Didn’t change numbers much but you can send the revised version to DEQ. I answered the questions below. From: Jennifer Cline [mailto:jcline@cityofmolalla.com] Sent: Tuesday, September 29, 2015 3:43 PM To: CHein@ringbenderlaw.com; JWRing@ringbenderlaw.com; mstrandberg@ringbenderlaw.com Cc: jclifford@cityofmolalla.com; dhuff@cityofmolalla.com Subject: Fwd: Molalla leak test report review questions. I haven't had a chance to read this. It just came in. I will work on a reply with Jason and send it to you before we submit. JC Sent from my iPhone Begin forwarded message: From: COLE David <COLE.David@deq.state.or.us> Date: September 29, 2015 at 2:47:55 PM PDT To: 'Jennifer Cline' <jcline@cityofmolalla.com> Cc: COLE David <COLE.David@deq.state.or.us>, BAILEY Randall <Bailey.Randall@deq.state.or.us> Subject: Molalla leak test report review questions. Hello Jennifer. After reviewing your leak test report, we have some questions we need answered. We would prefer if you could come meet with us in one of our conference rooms. Please send me a list of days and times you could meet us here, over the next week or so. I believe an hour should be sufficient time to go over the test results and answer our questions. Please prepare to answer the following questions: · What was going on with pond levels during the test? Pond #1 was increasing from 8/18-8/29. Pond #2 was decreasing on the days we irrigated. · Where do the influent and effluent numbers come from? Meters? Where are the meters located? Influent numbers come from influent flowmeter @ the Parshall Flume. Total Flow (decimal)/.325mgd(this is how many gallons of influent to increase pond levels 1”). Example: 8/14/2015, influent total was .6455mgd/.325mgd(1” in pond)=1.986 inches of influent. Effluent numbers came from the staff gauges. · We need to know how the level for the aeration basin is controlled if it is between the influent flowmeter and the lagoons. Aeration Basin level is controlled by a Pulsar Ultra 3 level sensor connected to (3) GE VFD’s to control pump speeds, which in turn control basin level at all times. Please bring a full-scale flow diagram to help us get a complete picture of the locations for the critical system and test components. Thank you. David Cole, R.G. Water Quality Specialist DEQ - Northwest Region & Western Region 700 NE Multnomah Street, Suite 600 Portland, OR 97232 503-229-5011 (P) 503-229-6957 (F)