The filter is simply a few layers of coarse sediment (usually sand and gravel) constructed at grade, and surround with earthen banks ... The first, is that the water can be allowed to exfiltrate out ...

Coarse gravel is durable enough to support the weight of a vehicle without sinking or getting caught in the tire treads and can be mixed with clay or sand to ... allow too much soil to slip ...

Soil contaminated with harmful perfluorinated and polyfluorinated alkyl substances (PFAS) is difficult to clean, a complete ...

Growing up in a household where there was plenty of exposure to home construction cultivated a fascination with dirt and sand piles, necessary components of many varied projects in which a parent ...