Black Bay Ventures
Location: Essex Junction, VT
Services: Site and Infrastructure Improvements for a New 42,000 ft² Commercial Building Addition, Initial Site Assessment, Final Design & Permitting, Construction Phase Services.
Point of Contact: David Logan, President and CEO of Autumn Harp
Year: 2012
Project Scope
In 2012, Eli Erwin assisted Black Bay Ventures V, LLC with the initial site assessment, and planning required for the proposed construction of a new 42,000 ft² addition onto an existing commercial cosmetic production facility located in Essex, VT. Mr. Erwin was responsible for the design and permitting of new connections to municipal water and sewer systems and assisted with obtaining an amended Stormwater Management Permit covered under the State Stormwater General Permit #3-9015.
Challenges
As part of the preliminary efforts, Mr. Erwin evaluated the site by examining the soil type, texture, consistency, structure, permeability, and the depth to seasonal high groundwater. Mr. Erwin determined the Adams and Windsor soil series, consisting of loamy sands (hydrologic group A), was present across the entire site and most, if not all, precipitation will infiltrate downward through the subsurface to eventually reach the groundwater table at an estimated depth of eight-feet (8’) below ground surface.
Conclusion
Based on his evaluation and the results of soil permeability tests, a percolation rate of less than 3.0 min/inch was determined and used to calculate the infiltration rate and sizing of the absorption trenches, underground infiltration chambers, and the stormwater infiltration basin. All of which are considered key components to the success of the project.
