942 East Washington Blvd. Pasadena CA 91104 6 2 6 . 4 8 6 . 2 1 1 5
Please give me some relevant suggestion on this.
Level 4 - A very detailed soil study that consists of backhoe pits and/or percolation tests in the area of the drain field. A site that requires Level 4 testing usually has soil limitations that require the installation of an advanced, alternative septic system.
If you are finding the best Soil Testing Laboratory then visit our official website.