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Mr. Chris aressel pB1072.400.0002 gunuary 27, 2014 rrage 7 ACA is established, the groundwater ingestion exposure pathway will officially be rendered incomplete, thereby eliminating the need to sample groundwater on- and off -pite for any metals concentrations. The results of the evaluation of the proposed groundwater remedy, the extent to which a future remedy is necessary based on the additional groundwater delineation and monitoring, and the progress of establishing the ACA will be summarized in a of m A draft of the forthcoming amended of m will be provided to the City and its outside counsel prior to finalization and submittal to IaEM. SCHEDULE Hull can begin coordinating the additional groundwater investigation and evaluation of any potential vapor intrusion issues immediately, subject to your approval of this proposal. Assuming our drilling subcontractor remains reasonably available, we anticipate all drilling and initial groundwater sampling activities will be completed by the end of February 2014. COMPENSATION A breakdown of costs is attached as Table 1. The fees represent a time and materials, not -to- exceed fee structure basis, and have been developed based on our estimate of hours for each labor category expected to be involved in the project. The project will be billed on a four -week basis with payment due to Hull within thirty days after receipt of an invoice. ADDITIONAL WORK Additional work beyond the pcope of t ork defined herein shall not be performed until such time as an amendment to this proposal, including the scope of the additional work and associated costs, has been prepared in writing to address the additional work and said amendment has been approved by the Client in writing. ppecific items not within the pcope of t ork on this project include, but are not limited to the following: 1. collection of more than 59 groundwater samples (including n A/n C samples) to be analyzed for s I Cs in accordance with r .p. Em4 Method 8260 per quarterly sampling event; 2. collection of indoor air and /or sub -slab vapor samples as may be deemed appropriate by Hull Task 2 above; and 3. disposal of groundwater or soil that is determined to be hazardous. k o amendment to this proposal shall be required in situations where additional work may be necessary, as a result of unanticipated or unidentified conditions including, but not limited to, the presence of unidentified or mislocated buried utilities, structures, or objects and unanticipated hazardous materials and /or hazardous or dangerous circumstances, to complete previously identified tasks. Hull shall be compensated for the actual time spent performing this additional work and other direct expenses and subcontractor fees at the billing rates outlined in Table 2. STANDARD OF CARE AND LIMITATIONS Hull shall perform its services using that degree of care and skill ordinarily exercised under similar conditions by reputable members of its profession practicing in the same or similar locality at the time of