Sand filter system a fit for convenience store advanced treatment unit project
Problem: A gas station and convenience store in Alabama needed a replacement system after the existing drainfield failed. There was no available space on the property, but the owners were able to acquire a small neighboring lot for sale. Soil tests showed 18 inches to the restrictive layer and had a 0.36 gpd per square foot application rate. The store uses approximately 650 gpd.
Solution: A treatment system with a reduced footprint was needed to manage the waste strength and to fit in the available space with a reserved replacement area for
