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6k) <br />v <br />Ltj L <br />Work Planned <br />for <br />P <br />Washington Co <br />Landfill <br />P` N.M <br />The purpose of this fact sheet is to <br />Why is the MPCA concerned <br />inform the public about work that <br />about contaminated ground <br />will be taking place early this fall at the <br />water at the Washington <br />Washington County Landfill, located <br />County Landfill? <br />rr� <br />3/4 mile north of Highways and two <br />Minnesota Pollution <br />miles east of Interstate Highway 694. <br />Of the approximately2.5 million <br />Control Agency <br />The Minnesota Pollution Control <br />cubic yards of waste buried at the <br />Washington County Landfill, <br />March <br />Agency (MPCA) will be working with <br />approximately 75 percent came from <br />environmental consultants and <br />homes in Washington and Ramsey <br />1995 <br />construction contractors to install a <br />Counties. The other 25 percent came <br />new cover system and active gas- <br />from commercial or industrial <br />extraction system and evaluate the <br />sources in the counties. <br />present ground water pump -and -treat <br />system at the site.. <br />Chemicals in wastesdisposed of at <br />the site are the source of the <br />Why Is the MPCA Concerned <br />contaminants that were found in <br />about landfill gas at the Wash- <br />two private wells near the site in <br />Ington. County Landfill? <br />1983. The chemicals are commonly <br />used by businesses, industries and <br />landfill ll gas is comprised of many <br />homes in products such as paint <br />volatile organic compounds (VOCS); <br />strippers, aerosol spray cans, home <br />with the most prominent compound <br />cleaning products and degreasing <br />being methane. Methane is a colorless, <br />solvents. <br />odorless gas commonly produced at <br />landfills by the breakdown of buried <br />As rain and melting snow seep <br />wastes. Normally, it moves slowly <br />through the buried garbage, they <br />through the soil and waste to the <br />pick up waste chemicals that leak <br />surface of the landfill, where it <br />from their containers. This <br />disperses into the air. When a landfill <br />contaminated liquid, called leachate, <br />is capped, the methane needs an <br />carries these chemicals into the <br />escape route or it will move laterally <br />ground water below. <br />toward the edges of the landfill. <br />Ongoing ground water monitoring <br />Although methane gas is not directly <br />indicates that the current cover <br />harmful to human health, it is an <br />system is not adequately keeping <br />asphyxiant and also has the potential, <br />leachate from reaching the ground <br />This material may be made <br />to explode if it accumulates in confuted <br />water. The current ground -water <br />available in other formats, such <br />as Braille, large audio <br />spaces. The MPCA is concerned about <br />p <br />pump -and -treat system will be <br />requtype est. <br />tape, upon request, <br />this risk because of the dose roximit <br />p y <br />evaluated to determine the most <br />M users call <br />stz-zazsaaz or 1-e00-657-3864 <br />of the Washington County Landfill to <br />efficient treatment method. Ground <br />C <br />buildings in the immediate area. <br />water quality will continue to be <br />monitored to evaluate the <br />effectiveness of the treatment <br />Printed on recycled paper with at <br />least 10% fibers from paper <br />recycled by consumers.- <br />