Supplemental Agreement No 2 - United Consulting - Coal Line Trail Phase I

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Mr. Devin Stettler CEC Proposal 161-618 — Phase II ESA Page 7 March 16, 2018 Our proposed fee is based on the following assumptions: • Preparation of a Quality Assurance Project Plan (QAPP) and/or Sampling and Analysis Plan (SAP) are not required by IDEM. If these items are requested, additional fees will apply. • CEC will be granted access to all sampling locations. • No clearing or grubbing will be necessary to access the boring locations. o Drilling and sampling activities can be conducted in two business days, with observation, sampling and documentation provided by one CEC professional. • Laboratory analysis of up to 24 soil samples for VOCs and 14 soil samples for lead, along with analysis of two trip blank water samples for VOCs. • Standard laboratory turnaround time (i.e. 10 business days) is sufficient. • All deliverables are provided in electronic format. • The estimated fees described above do not include the costs for the potential laboratory analysis for TCLP Lead for waste characterization of soil. If this analysis is deemed necessary based on the soil laboratory results, an additional laboratory fee of $75 per sample will apply. m Because it is unlikely that groundwater will be encountered, the estimated fees described above do not include the associated costs for collection and analysis of groundwater samples. If groundwater is encountered, groundwater sampling will be necessary; therefore, additional fees will be accrued per the following rates: • Temporary piezometers (groundwater sampling point): $60 each • Laboratory fees: fib, $70 per sample for VOCs analysis; and, $20 per sample for lead (total and dissolved) analysis. • Additional labor hours necessary to perform the groundwater sampling activities will be charged in accordance with the INDOT labor rates described above. CEC understands UCE has negotiated a prime agreement with the City of South Bend for this contract. CEC will serve as a sub -consultant to UCE for the scope of services described above. CEC understands that the INDOT standard sub -consulting agreement will be the basis for agreements between CEC and UCE. UCE will provide CEC with a sub -consultant agreement for review and signature. Until the sub -consultant agreement is signed, neither party is under obligation. Civil & Environmental Consultants, Inc.