BALTIMORE, MD (March 20, 2008) – The Maryland Department of the Environment’s Air and Radiation Management Administration (ARMA) and Lafarge North America have signed a Consent Order to address violations of air quality requirements for failing to take reasonable precautions to prevent particulate matter and dust from becoming airborne at its Frederick quarry and crushing operation. The Order requires payment of a $20,000 penalty for the violations as well as major improvements to the plant to reduce air pollution and dust emissions.

Improvements required by the Order include, among others, a major upgrade to the water suppression system for the crushers, upgraded dust suppression on the storage piles, and improvements to dust control on the plant roads. The Order also requires the Company to submit plans to ARMA for overall plant dust control and to keep extensive records of the operation of all air pollution control equipment and procedures.

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