Backfill first layer of ADS

The first dump truck load I used the backhoe to sprinkle the fill over the center of the pipes covering all about 8 inches or so. You can see the tracks where I ran the excavator over it to compact the soil. In this picture I've dumped the second or third load and will spread it out using the excavator. Six or eight more loads to fill the area to the 18" level where the next layer of 4" will go.