Here you go
Geotechnical Evaluation
From the mid 1930’s to the late 1940’s, the study area was defined by City streets, residential buildings, out
-buildings and a few multi-level
residential or commercial buildings. When the area was cleared for parking in the 1950’s, many of the existing building found
ations and
utility service lines were left in place. Building foundations were cut off to some elevation below ground and filled in, while utility service
lines (such as sanitary sewer) were capped and left in place. In addition, much of the area was filled with urban fill containing debris and
unsuitable materials. There is a strong potential for contamination in the form of ash, asbestos containing materials, etc. to exist within
these fill materials. Because of this, and the poor quality of soils to begin with it is necessary to remove the existing soils from the site to a
point roughly 10’ below the surface.
It should be noted that this is a significant expense that was not anticipated in the initial
Master Plan document.
Key findings and recommendations are as follows:
Significant subgrade correction is required throughout the site to remove old building foundations, buried debris, tanks, and generally
unsuitable soils. Much of this work should be undertaken as part of an initial phase.
Contaminants should be expected to be encountered throughout the site. Asbestos and other hazardous materials are likely. The
existing track also contains a mercury compound. Any hazardous material such as this will need to be disposed of in an appropriate
landfill.
Groundwater may be encountered in excavations more than 10-foot below grade.
Costs for geotechnical analysis, environmental analysis and remediation, dewatering and soils correction should be included in all cost
estimates.
from this document
http://2.fmbx.org/files/082714-athletes-village-phase-i/updates/000_s__Addm 02 Rcvd 08-26.pdf
