Observations/Finding

As requested, the site was visited by our AS Engineering and Consulting (ASEC) representative for the purpose of providing quality control inspection and testing services.  Visual observation techniques were employed to verify compliance with project drawing/specifications, applicable codes, and materials submittals. The following observations were observed on site this day.

• The placement and compaction of fill for Lots #38 through #40 and storm water trench between MHA6 to MHA7 and MHA8 continued this day.
• At the time of arrival, our representative observed that work was in progress with 1-foot lifts being placed and compacted using CP56B (15 tons) sheep-foot compactor. Compaction testing was performed using a Troxler nuclear density gauge along with general probing using a 3/8″ diameter probe rod.
• Density test results indicate that most of the compacted materials did not meet the project requirement of achieving a minimum of 95% of the maximum dry density, as determined by the Standard Proctor test (ASTM D698). The primary reason for the failure was that the moisture content of the soil exceeded the specified moisture limit. As a corrective measure, it was recommended that the affected areas be scarified, the soil turned over and allowed to dry to an acceptable moisture level, and then re-compacted to meet the required density specifications.

We appreciate the opportunity to be of service to you on this project. If you have any questions regarding this report, please feel free to contact us. We will be more than happy to discuss it with you.