Jacob & Hefner Associates, Inc.

Client:

Legat Architects, Inc

Scope Of Work

Jacob & Hefner Associates, Inc. (JHA) performed a Phase II for inclusion in a Feasibility Study for a planned natatorium at Oak Park/River Forest High School for Legat . The work included a shallow soil assessment of soil conditions in the existing football and baseball fields and other areas around the perimeter of the school. The project contained three objectives as follows: 1) to evaluate and document the stratigraphy (geotechnical) and current environmental conditions at the site, 2) to characterize the soils for re?use or future off?site disposal as Clean Construction and Demolition Debris (CCDD), and 3) to determine if past usage of the Site had impacted the site soils particularly in the area of the athletic fields. JHA created a Health and Safety Plan (HASP) and utilized two drill rigs to perform the geotechnical and environmental borings. Soil samples were obtained for both geotechnical and environmental laboratory analysis. Environmental constituents of concern included: Volatile Organic Compounds (VOCs), Semi?volatile Organic Compounds (SVOCs), Polychlorinated Biphenyls (PCBs) and Metals based on historical usage of the site prior to the high school being erected on site. Environmental soil samples were compared to the Illinois EPA TACO Tier I SROs. JHA prepared a Feasibility Study for the outlining where geotechnically unsuitable soils and environmentally impacted soils were encountered so a suitable location for the natatorium could be situated while limiting potential liabilities.