<p><p><strong>Reference(s):</strong></p><p><em>Aiban (2006)<br>Melton and Gardner (2006)</em></p><p><strong>Method Summary</strong></p><p>The United States Environmental Protection Agency (USEPA) land disposal restrictions, otherwise known as the land bans, have introduced toxicity characteristic regulatory levels. These regulatory levels define the cutoff levels for a waste. Using this regulation, a concentration of any listed constituent in the leachate at or above these levels designates the waste as hazardous, and it remains such until treated.</p><p><strong>Accuracy and Precision</strong></p><p>The use of SSA does not cause any detrimental effects regarding the environment, and the leachate characteristics are well within EPA limits.</p><p><strong>Adequacy of Coverage</strong></p><p>The QC/QA method can be implemented to provide an adequate assessment of the entire quantity of improved material, using a reasonable number of tests.</p><p><strong>Implementation Requirements</strong></p><p>Implementation requirements (cost, personnel, training, equipment, and time) for the QC/QA method are not excessive.</p><p>&nbsp;</p></p>