About BisonEng

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So far BisonEng has created 11 blog entries.

WE’RE MOVING!

As of April 20, 2020, the Bison Engineering, Inc., Helena office will be located at 3143 E. Lyndale Ave., Helena, MT 59601 Our phone number, 406-442-5768, will remain the same. Please make note of our new address and stop by to see our new offices when you’re in the neighborhood!

WE’RE MOVING!2020-04-22T13:07:22-06:00

They’re Here…Oregon Air Toxics Proposed Rules

Just in time for Halloween, Oregon DEQ has published their proposed rules to establish an entirely new permitting program designed to limit air emissions of 255 toxic chemicals and classes of toxic chemicals. The rule will apply to all facilities that are currently required to obtain an Air Quality Discharge Permit or Title V Operating Permit and to any facility DEQ determines could potentially emit non-de minimis amounts of toxic air pollutants.

They’re Here…Oregon Air Toxics Proposed Rules2018-08-21T14:41:04-06:00

Discussion Draft Cleaner Air Oregon Rules Overview

See this post for our brief overview of the recently released discussion draft of the Cleaner Air Oregon air toxics health-based rules. The advisory committee has been asked to review and submit comments by September 9. Then Oregon DEQ will update the discussion draft and issue a formal draft for a 60-day public review period starting mid-October.

Discussion Draft Cleaner Air Oregon Rules Overview2017-09-01T15:08:22-06:00

Diane Lorenzen, P.E.Senior Project Engineer

Diane is a licensed professional engineer with a B.S. in Civil Engineering from Stanford University and an M.S. in Environmental Engineering from Montana Tech. She started her air quality consulting career at Bison Engineering in 1991. From 1996 through 2016, she worked as an independent air quality consultant while focusing on raising her family. Diane also worked at Montana DEQ for two years as an air quality modeling specialist. Diane rejoined Bison Engineering in 2016. Diane has a great deal of experience in air quality permitting and compliance support for wood products clients in Idaho, Washington, Oregon

Diane Lorenzen, P.E.Senior Project Engineer2019-01-11T13:56:49-07:00

Cleaner Air Oregon Framework Presentation

Just presented this morning at the Mass Timber 2017 Conference in Portland, Oregon. The presentation outlines and provides additional information on the recently released draft framework for Oregon's in-work, risk-based air toxics rule; click here to see a copy of the presentation. The Cleaner Air Oregon Advisory Committee will be reviewing and discussing the framework in a public meeting next Tuesday, 4/4, in Springfield. I plan to attend and will provide another update. Stay tuned! Kevin Mathews p.s. Before attending this conference, I didn't know much about mass timber (someone told me it's short for "massive" timber). The industry has done

Cleaner Air Oregon Framework Presentation2017-04-03T12:22:42-06:00

Cleaner Air Oregon Draft Framework Released

As promised, Oregon DEQ and the Oregon Health Authority have released a draft framework for the new set of air toxics rules they have been developing. Check out this announcement on the Cleaner Air Oregon website. Here's a copy of the draft framework. The agencies will be meeting with the CAO Advisory Committee Tuesday, April 4th in Springfield to discuss the proposal and take public comments.

Cleaner Air Oregon Draft Framework Released2017-04-03T12:23:40-06:00

Wind Energy and the Environment

Links to three articles analyzing recent court cases regarding renewable energy environmental impacts plus our own notes on another similar court case.

Wind Energy and the Environment2018-08-21T14:41:06-06:00

Kellen Sullivan, Q.I. Environmental Scientist

Kellen joined Bison in 2015. He has a Bachelors of Science degree in Biology from Beloit College and is an environmental scientist in the Helena office. Kellen has five years of experience as a source tester and environmental chemist. As a member of the Source Testing group, Kellen conducts air emissions testing in accordance with EPA methods for both engineering and compliance purposes for a variety of clients. He has extensive experience and knowledge operating Boiler MACT compliance testing, Title V compliance testing, JJJJ and ZZZZ testing, and fourier transform infrared spectroscopy (FTIR), which is used to

Kellen Sullivan, Q.I. Environmental Scientist2019-04-23T22:00:23-06:00
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