Amendment No 5 to PSA - Beck’s Lake Remediation Work – Jones Petrie Rafinski Corporation

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Scope of Work and Cost Proposal for Beck’s Lake NPL/LaSalle Park Area December 22, 2022 Page 1 of 3 December 22, 2022 City of South Bend Legal Department 227 West Jefferson Boulevard #1200 South Bend, Indiana 46601 Attn: Sandra Kennedy, Corporation Counsel RE: SCOPE OF WORK CHANGES AND COST ADJUSTMENTS, BECK’S LAKE NPL SITE/LASALLE PARK AREA, SOUTH BEND, INDIANA (PROJECT 2018-0225) Dear Ms. Sandra Kennedy: Jones Petrie Rafinski Corp. (JPR) is pleased to submit this Scope of Work Changes and Cost Adjustments as a fifth amendment to the original professional services agreement (PSA) dated August 14, 2018 for work associated with additional offsite waste delineation (Task 1), groundwater investigation (Task 2), soil management plan (SMP) implementation (Task 3), general consulting services (Task 4) and soil sampling to define Areas of Concern (Task 5) for the Beck’s Lake NPL Site/LaSalle Park Area project. SCOPE OF WORK CHANGES BY TASK WITH COST ADJUSTMENTS Task 1: Waste Delineation Outside of the LaSalle Park Area (LPA) - North of Linden Avenue Net Task Change: None. Task 2: Monitor Well Installation, Development, and Groundwater Sampling Net Task Change: None. Task 3: Soil Management Plan Implementation and Oversight of Waste Soil Disposal Net Task Change: $42,650.20 increase. The City of South Bend had approved the “Contract Documents and Specifications for Beck’s Lake/LaSalle Park” (Project No. 120-053) which is the bid package for implementing the Time-Critical Removal Actions (TCRA) related to multiple areas of the Beck’s Lake/Lasalle Park NPL Site as required by the EPA. The approved activities included sod, soil, and tree removal as well as the placement of additional fill sand and topsoil. The field work related to the TCRA was completed on December 21, 2022. However, additional renovations to the Beck’s Lake/LaSalle Park are planned for the near future. As per the EPA-approved Soil Management Plan (SMP), the air must be monitored for particulate contaminants of concern (COCs) during any soil disturbance at the site. Any soil excavated must be removed from the site and transported directly to an EPA-approved landfill for proper disposal. In addition, all soil brought to the site must be determined to be free of COCs via laboratory analytical testing (at concentrations above regulatory limits) prior to placement on the site.