Martin Marietta Materials, Inc.
Presentation to the City of Fort Collins
Air Quality Advisory Board
April 21, 2014
Martin Marietta Materials, Inc.
Current Operations
•
The aggregate mine and asphalt plant are
located on Taft Hill Road in Larimer
County.
•
Martin Marietta is committed to the
health and safety of our employees,
neighbors and the community.
•
We are committed to being a good
neighbor and we demonstrate that
through our actions.
•
Martin Marietta is in compliance with all
Federal, State and local regulations.
Community Involvement

Contribution to the County/City:
 Employ 100 people; most of who live in the city/county
 City of Fort Collins and Larimer County are our customers
 Economic contribution:
 $1.2 million in equipment sales tax
 $300,000+ in property tax
 $3.4 million in licensing and registration costs to Larimer County
 $5.3 million 2013 Larimer County payroll

Quarterly public meetings/individual meetings
Martin Marietta Materials, Inc.
Taft Hill Mine
• Mining has been done at this site
since the early 1950s
• During aggregate extraction asphalt
plants and concrete plants are colocated to consume the material
• Regulated by CDPHE, EPA and Larimer
County
• After mining is complete, we conduct
extensive reclamation/restoration of
the land – creating lakes, water
storage vessels and wildlife habitat
Taft Hill History
• Asphalt plants have been
located on this property in
various locations for four
decades
• Mine and asphalt plants
previously operated by Sterling
Companies, Western
Mobile/Redland and Lafarge
West, Inc.
• Martin Marietta acquired these
assets in December 2011
Martin Marietta Materials, Inc.
Taft Hill Mine Operations
• Previous owners relocated the
current asphalt plant to this location
in the Spring of 2011
• One of the most environmentally
advanced asphalt plant designs in
the industry.
• Supply asphalt to City of Fort
Collins, Larimer County, CDOT
and private customers
• Asphalt plant is in full compliance
with state, federal, local regulations.
Production Limits

Current permit caps asphalt production at 600,000 tons
annually (Rolling 12 months)
 Plant operating restrictions



One hour before sunrise to one hour after sunset
Monday through Friday
Production follows the demand of the economy
Odor and emission Concerns/Actions

Odor abatement actions:

Asphalt Solutions asphalt additive – odor inhibitor acts as a Oxygen
scavenger

Vent condensers install by end of Q2, 2014

Vertical AC tanks will replace Horizontal tanks in Q1, 2015

MMM complies with all regulations which are contained in the permit
including odor

Staff training and certification


Opacity & odor
Larimer County inspections –
 No violation of state odor or emission regulations
Highly Regulated Industry
•
•
•
•
•
•
•
United States of America Environmental Protection Agency (EPA)
Mine Safety & Health Administration (MSHA)
Occupational Safety & Health Administration (OSHA)
United States Army Corps of Engineers
Colorado Department of Public Health & Environment (CDPHE)
Division of Reclamation, Mining & Safety (DRMS)
State Engineers Office (SEO) – Colorado Division of Water
Resources
• Larimer County
Permits & Plans
• Clean Air Act
– Air Permit 97PO0030 issued by the CDPHE
• Clean Water Act
– COG-500000 Permit issued by the CDPHE
• Stormwater Management Plan (SWMP)
• Spill Prevention Control & Countermeasure Plan (SPCC)
• Substitute Water Supply Plans (SWSP) – Required by the SEO
• Mining Permit issued by the DRMS
Relocation Notice: Permits asphalt plant to operate at
Taft Hill
Conversion Permit Application and Air
Pollutant Emission Notice (APEN)
Current Air Permit
EPA

EPA removed of hot mix asphalt plants from list of major
sources
 A major source is defined by the number of tons of emissions
released.
 Major sources emit more than 10 tons of individual
hazardous air pollutants (HAPs) or 25 tons combined.
 MMM is permitted to emit less than 10 percent of that
combined limit.
Health Studies

The U.S. Department of Health and Human Services conducted a
study of people living near asphalt plants in 2005 and in 2007.

2005 Study: VOCs, PAHs, respirable dust all below health
guidelines and no adverse health effects anticipated for all age
groups.

2007 Study: 6 year period
 Concluded: “concentration of polycyclic aromatic hydrocarbons
(PAH) and volatile organic compounds pose no acute (shortterm) or chronic (long-term) public health hazard” (HHS 2007).
 The study also found many of these same chemicals are emitted
by other combustion sources, such as exhaust from fireplaces,
wood stoves and gas stations.
Front Range
Asphalt Plants in 2-Mile Proximity to Schools
Northern Colorado
21 schools
Denver Metro
50 schools
Colorado Springs
41 schools
Conclusion
 Martin
Marietta Materials will continue to operate
so as not to exceed state, federal or local permit
requirements and restrictions
 State
Air Permit will continue to ensure operations
are safe and not posing a risk to the public
 We
have heard concerns about emissions and odors
and are addressing them