Agreement - Engineering & Design Services for CNG Compressor Upgrade at Wastewater Plant - Greeley and Hansen, LLC.

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This is EXHIBIT A, consisting of 11 pages, referred to in and part of the Agreement between Owner and Engineer for Professional Services dated November 26, 2019. Engineer's Services Article 1 of the Agreement is supplemented to include the following agreement of the parties. Engineer shall provide Basic and Additional Services as set forth below. PROJECT DESCRIPTION The purpose of this project is to maximize the utilization of cleaned digester gas in City vehicles. The City of South Bend currently has time -fill CNG vehicle fueling station which they would like to upgrade to a fast -fill station. By using the cleaned digester gas as a transportation fuel, the City of South Bend can maximize its generation of Renewable Identification Numbers (RINs) to be sold on the open market to companies that purchase renewable energy credits. Based upon discussions with City staff, the scope of the project includes: Upgrades to the existing compressor system for fast -fill operations Electrical upgrades for the system including extension of 3-phase 480 power, distribution panel, breakers, instrumentation and controls, monitoring, and safety provisions Gas piping modifications and gas storage • Evaluation of gas piping network and accessories located inside the tunnel and serving gas -fired equipment and flare. • Evaluation of gas piping network leading to the gas cleaning skid system. • Modifications to gas piping and addition of gas storage required to upgrade CNG fueling station from slow filling to fast filling. Ancillary upgrades to fueling stations and fueling area Evaluation of existing gas cleaning skid system PART 1— BASIC SERVICES A1.01 Project Management and Preliminary Design 1.1 Data Collection review, and PreLi:niina Design Report F'Q . Review the existing NIPSCO natural gas supply for fast -fill upgrades. Review existing mechanical distribution piping network, equipment, and instruments. Review renewable fuel project report. Relevant data and information regarding key facilities will include: Record Drawings, O&M Manuals, and Shop Drawings. Prepare PDR that provides recommendations for systems modifications and new construction. The PDR will detail two options to maximize RIN generation and fast -fill operations. The PDR will note estimated lead times for large and packaged equipment. Page 1 (Exhibit A — Engineer's Services) EJCDC E-500 Agreement Between Owner and Engineer for Professional Services. Copyright OO 2008 National Society of Professional Engineers for EJCDC. All rights reserved.