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Himanshu Mehta, P.E. 7 May 2008 Page 6 Geosyntec consultants property owner liability protection" (see CERCLA sections 101(35), 107(b)(3), 101(40), 107(r), and 107(q)). The regulatory citation for the Federal AAI standard is Title 40, Code of Federal Regulations, Part 312 (40 CFR 312). In late 2005, the American Society for Testing and Materials (ASTM) updated its prior standard for Phase I ESAs, now E1527-05, Standard Practice for Environmental Site Assessments: Phase I Environmental Site Assessment Process. The AAI/ASTM standard differs from the prior (2000) ASTM Standard E1527-00 by "raising the bar" in terms of the level of effort to complete the Phase I ESA and meet the AAI standard. Specific differences include, for example, the need to use highly experienced professionals ("environmental professionals", as defined under the regulation) to conduct certain aspects of the AAI investigation and the need to conduct a more specific investigation of historic land uses. We understand that IRC is interested in having Phase I ESA work performed by Geosyntec to help identify environmental liabilities associated with the above -referenced site which Geosyntec would consider to be a Recognized Environmental Condition (REQ as defined by ASTM E1527-05. Geosyntec proposes to perform the following Phase I ESA work in general accordance with specific guidelines contained within ASTM E1527-05, as indicated in the following tasks. The intent of Geosyntec's effort is to provide IRC with a Phase I ESA for the sites which will assist IRC in meeting certain requirements of EPA's AAI rule. Please note that, herein, Geosyntec has developed a scope of services based on its knowledge of the project, which is finite in nature, to allow the development of the enclosed budget and schedule estimates. In fact, Geosyntec may find that work outside this scope may be necessary in order to address the requirements of AAI that apply to the Phase I ESA work effort (we will advise you if this is the case). Further, please note that AAI defines certain client responsibilities; Geosyntec strongly encourages its Phase I ESA clients to become familiar with the AAI rule in order for them to be able to understand what must be done by the client (over and above the Phase I ESA) to fully demonstrate AAI and achieve the full benefit of the above-described "liability protections". The following scope will be performed: Phase I ESA Task A: Initial Interview and Document Acquisition Prior to visiting the site, Geosyntec will make an initial contact with the Site Owner/Manager designated by you to preliminarily discuss enviromnental conditions associated with site. This interview will focus on learning about environmental features of the site such as known or suspected environmental contamination, environmental permits, historical site usage, etc. In XR08051 R/CCR08045 R. DOC engineers I scientists I innovators