RE: BOD5 test Method

From: Andy Peters

Sent: Fri Mar 09 08:24:24 2018

To: Bob Dillard

Cc: Gerald Fisher

Subject: RE: BOD5 test Method

Importance: Normal

Attachments: image002.jpg;

Bob thank you, these are exactly the procedures and rules I needed.

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

From: Bob Dillard <b.dillard@charter.net>

Sent: Thursday, March 8, 2018 8:11 PM

To: 'Andy Peters' <apeters@cityofmolalla.com>

Subject: RE: BOD5 test Method

Andy,

The address below is the DEQ QA guidance for self monitoring labs.

http://www.oregon.gov/deq/FilterDocs/QAguidanceSML.pdf

SM 5201 B is out of the Standard Methods manual that most plants have on the shelf (ours is blue about 4” thick).

There are a few variables but the link and the Franklin township lab procedures should help you. If your procedure varies give me a call and will answer your question or find the answer ASAP.

I don’t think you have to worry to much if he has been previously trained and has been running the test. The basic concerns is depletions of the oxygen. And residual oxygen in the final reading. The blanks should not deviate

+/- .2 mg/l. This is explained in the manual.

If you have a QA/QC document for the lab it was probably reviewed during an annual site review by DEQ.

If you are still concerned you can use a private lab or other nearby may help out.

I will do a little more research and give you a call on Friday.

Bob Dillard

2470 Ash St.

North Bend Or. 97459

541-290-9908

From: Andy Peters [mailto:apeters@cityofmolalla.com]

Sent: Thursday, March 8, 2018 4:40 PM

To: 'Bob Dillard' <b.dillard@charter.net>

Cc: Gerald Fisher <gfisher@cityofmolalla.com>; Dan Huff <dhuff@cityofmolalla.com>; 'R Quigley' <rquigley@dyerpart.com>; 'S Major' <smajor@dyerpart.com>

Subject: BOD5 test Method

Bob, we find ourselves in a situation where we need to immediately confirm to our legal counsel that the test we did yesterday for BOD5 is valid. Our level 2 Operator, Jake Ehredt, performed while I observed, and I have audio and images documenting the test.

According to the non-official word document called “QA-QC Manual – Master.doc” that is available to me on our computer files (I can’t find any signed, approved, or official version) that has Date Modified timestamp of 11/16/2017 8:09am, we are suppose to perform this lab test in accordance with “reference method SM 18 Ed. 5210 B”. Would you be able to do this:

1. Confirm that this reference method exists, is the correct method for the test, and is something you understand.
2. Assemble some diagnostic questions for me to answer, designed to confirm the Operator did the test according to method.
3. Review my answers, based on what I witnessed the operator do.
4. Tell us, based on my answers, whether our operator followed the method.

Time frame for this is basically immediate, I’m not sure we can wait until the 14^th. Can we do this tomorrow? Is this something you can do for us?