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Our Green HQ


Maryland Environmental Service Headquarters is certified as LEED® Gold by the U.S. Green Building Council. Our Headquarters was the first Maryland State Government building with operations and maintenance practices certified to LEED standards.

USGBC LEEDLEED (Leadership in Energy and Environmental Design) is a rating system that measures the success and impact of a building’s sustainability efforts. MES Headquarters achieved 75 points under the LEED for Existing Buildings: Operations and Maintenance Rating System.

The Gold certification marks our commitment to maximize and maintain the efficiency of our building’s existing environmental features, continually seek improvement in energy efficiency and sustainability and create a healthy work environment.

solar panelsLEED certification of MES Headquarters was based on many green design, construction and maintenance features, including:

  • STORMWATER - The MES stormwater management program is effective in maintaining our site’s bay-friendly stormwater infiltration strategy. The site was designed with six bioretention areas that provide water quality treatment, storage, infiltration and evaporatraspiration. A 2,000-gallon concrete vault is used to store stormwater to meet peak flows and allow gradual discharge to the 250,000-gallon stormwater management infiltration pond.

  • ENERGY - A 599-Kilowatt solar array generates renewable energy on the site. Student and business tours of the solar field promote the use of renewable energy.

  • stormwater bioretention
  • WATER EFFICIENCY - MES monitors water use to prevent excessive consumption. No fresh water is used to irrigate the site’s landscaping. Instead, MES Headquarters captures rainwater from the roof and stores it in a 5,000-gallon underground cistern for use in irrigation.

  • MATERIALS AND RESOURCES - MES buys Energy Star Compliant products and achieves a 100 percent recycling or reuse rate for obsolete electronics. We conduct an annual waste stream audit, hold regular electronic recycling events and have a robust in-house recycling program. We track and encourage sustainable purchasing.

  • INDOOR ENVIRONMENTAL QUALITY - Maintenance ensures our HVAC system delivers an adequate amount of outside air into the building and that chemicals associated with cleaning are tracked and minimized.

  • MES Headquarters achieved points for the building’s reflective roof, native plantings and reduction in the use of harmful chemicals used outdoors. The agency’s telecommuting program resulted in LEED credits for the reduction of automobile trips to and from work.


    The U.S. Green Building Council’s LEED green building certification system is the foremost program for the design, construction and operation of green buildings.

    By using less energy, LEED-certified buildings save money for families, businesses and taxpayers; reduce greenhouse gas emissions; and contribute to a healthier environment for residents, workers and the larger community.

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