<p><p><strong>Reference(s):</strong></p><p><em>Army and Air Force (1994)<br>PCA (1980)</em></p><p><strong>Method Summary</strong></p><p>Trenches may be dug for visual inspection to evaluate depth and uniformity of mixing. A uniform color along the soil profile usually indicates thorough mixing.</p><p><strong>Accuracy and Precision</strong></p><p>The accuracy and precision of this test method cannot be quantified as it is qualitative in nature and dependent on the experience of the inspector.</p><p><strong>Adequacy of Coverage</strong></p><p>This method is limited to the observed area.</p><p><strong>Implementation Requirements </strong></p><p>Some experience is necessary to recognize inadequate mixing and/or lack of stabilizer.</p><p><strong>General Comments </strong></p><p>The depth and uniformity of mixing can be checked by visual inspection. If the mixing is adequate, soil will present a uniform color. On the contrary, a streaked appearance indicates non‑uniform mixing.</p></p>