LANDFILL LINER SYSTEMS KEEP WASTE FROM WATER.

Presently, more than half of all Americans rely on underground supplies for drinking water. Years of careless waste disposal and ignorance are threatening these very important reservoirs. Once contaminated, groundwater is difficult, if not impossible, to clean. At present, more than 200 foreign substances have been detected in this country's groundwater supplies. Therefore, a powerful impetius exists separate to design and construct land fills property to form effective barriers being waste from uncontaminated water. Liner systems form the critical components of these barriers. The hazardous-waste containment regulations require double-liner systems incorporating synthetic geomembranes. Liner-system criteria will be of EPA and presented as a way to comply with the performance standard.