- For Storm Water Management (SWM) an Engineer must be hired to create the drawings
- We dig trenches from the downspout locations to the storm water facility
- The trenches are sloped toward the facility to promote drainage
- Pipes are laid within the trenches to convey the roof water
- The trenches were then back filled
- This facility itself, was designed to be completely underground
- We excavated a pit 70′ x 40′ x 8′ deep
- The pit was lined with filter fabric and 342 tons of 2B stone were placed 5′ deep
- A distribution box was constructed in the center of the pit
- The roof water is piped into the distribution box where it is piped out through the stone
- A “bubbler”, or overflow was installed
- The filter fabric was installed over the stone, fill dirt was added, then 6″ of topsoil
- All the disrupted areas were seeded and mulched