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.

• Observed the subcontractor (Lewis contracting) as they continued backfilling in the area of the manhole placed at the 30″ in-line valve approximately at STA 7016+27, measured 37′ (L)x 8′ (W).
• At the time of arrival, our representative observed that work was in progress with 6-inch lifts being placed and compacted using a front loader to place the GAB in the area and spread using the bucket of the mini excavator CAT 315F. The material was compacted using a trench and jumping jack plate compactor.
• Compaction testing was performed using Troxler nuclear gauge done by the QC.
• Density test results indicate that the compacted materials met the project requirement of 95% of the maximum dry density obtained by the Modified  Proctor ASTM D1557. 

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.