Loveland Bike Trail
 

LARIMER COUNTY ENVIRONMENTAL AND SCIENCE ADVISORY BOARD (ESAB)

 MEETING MINUTES

April 8, 2014

 

Members In Attendance:

 

Guests:

Cassie Archuleta

 

James Sharn

Melissa Chalona

 

Kenneth Ball

Chase Eckerdt

 

Lisa Sigler

Kimberly Karish

 

Bule Hine

Evelyn King

 

Julia MacMillan

Ryan McShane

 

Karen Hare

Joseph Wilson

 

Connie Marvel

 

 

Kevin Pass

Staff :

 

Bryan Simpson

Doug Ryan

 

Walter Wright

 

 

Dave Lemesany

 

 

 * and several other guests who did not sign-in

 

 

    or were illegible

 

Introduction of Members and Guests:

Those in attendance introduced themselves.

 

Citizen Comments:

Through a prior arrangement, a citizen group, and a representative from Martin Marietta Materials each made a 10-minute presentation about their position concerning the asphalt plant and state air emissions permit process. 

 

Kevin Pass, spoke on behalf of area citizens concerned about hazardous air emissions and odors from the asphalt plant.  He used a PowerPoint presentation to illustrate his talk.  Those concerns included the amount of air pollutants that would be released into the environment – including a number of hazardous volatile organic compounds and metals.  The asphalt plant is within ˝ mile of Lincoln Middle school, and in close proximity to a number of residences and other schools.  Dr. Pass provided information about the current mobile-source emissions permit, including the citizens’ contention that required Air Pollution Emission Notices and relocation notices have not been obtained.  Based on their research, the citizens believe that the asphalt plant is not safe in its current location, and that it should be required to relocate to a more rural location away from so many sensitive people.

 

Prior to the meeting, Dr. Pass provided several supporting documents for the ESAB.  Doug Ryan provided these to the members by email a week ahead of the meeting. 

 

Ken Ball, representing Martin Marietta Materials provided information about asphalt plants, including their current operation of the plant.  He also used a PowerPoint presentation.  Mr. Ball acknowledged the community’s concerns about odors and emissions, but also noted that from their perspective the plant is in compliance with all federal, state and local regulatory requirements.  He noted that the plant uses an environmentally advanced double-drum design that substantially lowers the amount of volatile emissions.  It is fired with natural gas and not fuel oil.  The plant uses substantial amounts of recycled asphalt.  The majority of the asphalt produced is warm-mix asphalt – which is produced at lower operating temperatures than hot-mix plants.  This lower temperature reduces volatile emissions.  Martin Marietta has installed a system to capture volatile emissions from the silo filling operation.  In the near future they plan to convert to vertical asphalt concrete tanks in order to minimize the liquid surface area, and to install a vapor-recovery system to capture and condense vapors back into the tank.  Mr. Ball also noted that the company uses an additive to the asphalt cement tank that is designed to reduce odors.  He stressed that Martin Marietta will continue to operate in compliance with applicable regulations and to exceed those regulations with regard to community concerns such as odors.

 

Prior to the meeting, Mr. Ball provided several supporting documents for the ESAB.  Doug Ryan provided these to the members by email a week ahead of the meeting. 

 

Discussion Items:

Martin Marietta Materials asphalt plant air permit.   Doug Ryan provided background information about the anticipated ESAB review of the draft stationary source air emissions permit.  That new permit is required for portable source permits that operate for more than two years in single location.  The Colorado Department of Public Health and Environment is the permitting agency, and will incorporate a 30-day public comment period once they release the draft permit.  The County Commissioners have asked the ESAB to review the draft permit and provide them with comments.  Mr. Ryan noted that an asphalt plant is allowed at this location as an accessory use to the gravel mining operation authorized by a land use Special Review originally issued by the County in 1985.  The current plant has been the subject of a number of odor complaints from the community.  Odor measurements to date have not exceeded the state’s odor regulations.  Mr. Ryan noted that while the operator has taken a number of positive steps to resolve these complaints, the odors persist and have not been resolved to the satisfaction of the community. 

 

The Advisory Board reviewed the asphalt production process and considered potential emission points.  The elements of an air emissions permit were discussed.  Those elements begin with the submission of an Air Pollution Emissions Notice, and include the identification of required emission controls, process limits, performance standards, and ultimately stack testing.  The Advisory Board considered the range of categories that their permit review should include.   Due to the technical nature of many of those categories, the members recommended obtaining a qualified consultant to assist with a technical review of the draft permit.  Joe Wilson moved, and Chase Eckerdt seconded a motion to recommend that the County Commissioners authorize such a report for use by the ESAB at its formal review.  The motion passed unanimously. 

 

Other related topics were considered in Mr. Ryan’s presentation.  These included the availability of previous health consultations prepared by the Agency for Toxic Substances and Disease Registry (ATSDR), the way that the EPA regulates toxic air pollutants under the Clean Air Act, and the illustrative example of benzene air emissions from modern gas filling stations vs. the current mobile source emissions permit. 

 

As part of the discussion, the members indicated that it would be helpful if they could obtain some written information from Martin Marietta Materials ahead of the next meeting to help clarify some of the issues raised at the meeting.  Those include information on the historic asphalt production at the plant as it compares to the maximum production stipulated in the current permit, the anticipated duration of gravel mining and asphalt production at this location, and information to help clear up the citizens concerns about lack of continuous coverage under an emissions permit and the required relocation notices. 

 

The members also asked for a map to show other asphalt plants in the community and their proximity to residential development.  It is anticipated that staff can work on that item. 

 

Moving forward, the Advisory Board anticipates that the draft stationary source emissions permit will be available for the next regular meeting on May 13.  Staff will work to obtain the consultant’s evaluation ahead of that meeting. 

 

Approval of March Minutes:

Minutes for the March 11, 2014 meeting were approved as submitted.

 

Updates:  

Kimberly Karish noted that the Environmental Assessment for a forest management plan in the Pike National Forest is moving into the public scoping phase. Information is available online at http://www.fs.usda.gov/detail/psicc/landmanagement/projects/?cid=stelprd3793682.

 

Citizen Email:

The Advisory Board received an email from Dale Adamy expressing concerns about planned spraying for pine beetles by the US Forest Service.  Mr. Adamy had indicated that he planned to attend the meeting and speak during the public comment session, but was not in attendance.  Prior to the meeting, Doug Ryan contacted the Forest Service and obtained information on the spraying program from Reghan Cloudman, Public Affairs Specialist for the Arapahoe & Roosevelt National Forest.  The information she provided described the treatment program, and project design criteria for the spraying program.  The members indicated that they believe that the protocols are appropriate, and that the Forest Service is exercising an appropriate level of oversight and management for the program. 

 

ESAB Issue Index:

Doug Ryan will update the Issue Index related to the topics discussed at the meeting.

 

May Meeting Agenda:

Review of the draft Air Emissions Permit for the Martin Marietta Materials asphalt plant

 

Adjourn:

The meeting ended at 8:55 PM

Background Image: Loveland Bike Trail by Sharon Veit. All rights reserved.