From: Gerald Fisher
Sent: Thu Sep 29 17:33:42 2016
To: Dan Huff (Molalla)
Subject: FW: Leak test data
Importance: Normal
Attachments: data sheet - Molalla.pdf; Detailed enough. Shouldn’t be a problem. Right? Regards, Gerald Fisher, P.E. | Public Works Director City of Molalla 117 N Molalla Ave. | PO Box 248 |Molalla, OR 97038 Office: 503.829.6855 | Direct: 503.759.0218 CONFIDENTIALITY NOTICE: The information contained in this email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient and have received this communication in error, please contact the sender by reply email and destroy all copies of the original message. Thank you. From: R Quigley [mailto:rquigley@dyerpart.com] Sent: Thursday, September 29, 2016 3:00 PM To: jclifford@cityofmolalla.com; jrandall@cityofmolalla.com Cc: Gerald Fisher <gfisher@cityofmolalla.com> (gfisher@cityofmolalla.com) <gfisher@cityofmolalla.com> Subject: Leak test data Jon & Jason, Per our conversation today, attached is the revised data collection sheet. The revised sheet adds a column for the biosolids removal, which you had on your sheet, and adds a column to record the DAF meter totals at 8:00 am every morning. Recording the DAF at 8:00am and 12:00 am will allow us to find the total flow between 8 am and 8am each day, to match the other data we are collecting during that time period. Also, as we discussed: · Lagoon 1 – Measure the change in depth using the concrete structure to the nearest 1/16”. If waves are present, a temporary stilling well can be used. A perforated bucket hung from the structure should work well for this. Make sure there are enough holes to provide a water level in the bucket equal to the water level outside of the bucket. · Lagoon 2 – Provide the measurement along the sloped staff gauge, to the nearest 1/16”, from the tack placed on the previous day to the tack placed on the present day. When waves are present in the lagoon, place the tack between the low point of the waves on the gauge and the high point the gauge. We will use the slope of the gauge and these measurements to calculate the change in lagoon depth. · Pump Station Meter – Continue recording totalized amount at 8:00am so that we can calculate the total volume in the 24 hour period. Let me know if you have any other questions. I will make a trip up on Monday to check in on the evaporation data logger. Thanks, Ryan Quigley, P.E. The Dyer Partnership Engineers & Planners, Inc. 1165 S. Park St. Lebanon, OR 97355 (541) 405-4520 – Office (541) 451-0089 – Cell