AES Environmental Consulting

NPDES Phase 2 Stormwater Infiltration Investigations

aes has completed many NPDES Phase II stormwater infiltration studies at various land development sites in Pennsylvania. Although the regulations requiring such studies are recent, the professional techniques and experiences necessary to successfully develop and implement stormwater infiltration studies are long established. The staff and scientists at aes have successfully adapted their knowledge and expertise in the areas of soils, geology, groundwater, and surface water in order to design and implement appropriate and economical stormwater infiltration studies.

Our approach to these projects follows our tried and true business ethic – listening to our client’s needs. We meet with our clients to obtain details regarding desired land use, expectations, drawings, and related municipal ordinance requirements. aes scientists use this data to develop a site-specific work plan focused on meeting our client’s needs within the existing regulatory environment.

Our investigations involve the collection of important pieces of site information required to characterize the site, assess the viability of onsite stormwater infiltration, and provide the data necessary for site engineers and architects to design appropriate stormwater infiltration areas. This is typically accomplished using a combination of several proven field techniques, including: surface geophysics, hollow-stem auger or GeoProbe® soil drilling; cone penetrometer soil drilling, backhoe test excavations, and soil percolation/infiltration test wells.

The data, conclusions, and recommendations resulting from these techniques have proven to be cost-effective and defensible at the local, County, and State government levels.