PSA - Demolition of Buildings at 1302 Elwood Ave. - Abonmarche Consultants Inc

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315 West Jefferson Boulevard, South Bend, IN 46601 • 574.232.8700 abonmarche.com Engineering • Architecture • Land Surveying Scope of Services Portage Avenue and Elwood Avenue Development – Site Demolition The primary purpose of the project is to prepare plans and specifications for demolition of commercial buildings near the intersection of Portage Avenue and Elwood Avenue. A. Topographic Survey 1. The topographic survey will include the entire 8.6 acres of the parcel located at 1302 Elwood Avenue 2. At a minimum, the topographic survey will include the location and elevation of all topographic features, including underground and overhead utilities, fences, buildings, paved and gravel surfaces, driveways, toe of slope, top of bank, headwalls, sanitary and storm sewer pipes and culverts including pipe sizes, inverts and direction of pipes, shrubs, signs, poles, manholes, valves and meters, and all individual trees. 3. Existing underground utilities will be located as marked by Indiana Underground Plant Protection Service and a private utility locator 4. Review title search provided by Owner to determine any access rights or easements to be considered prior to demolition. 5. Control points and references will be set in sufficient detail to construct all improvements. 6. A minimum of 3 benchmarks will be set and referenced B. Permitting 1. A Soil and Water Pollution Prevention Plan (SWPPP) will be prepared for the project. 2. A Construction Stormwater General Permit will be prepared for the project. C. Environmental Services 1. Initial vapor intrusion assessment with soil gas sample collection i. 11 Soil Gas-Exterior samples from the parking lot on approximate 100’ by 100’ spacing i. Soil vapor implants to be installed in boreholes completed with a Geoprobe to a depth of approximately 2 feet below ground surface ii. 12 inch implant will be installed from approximately 1 to 2 feet below ground surface and completed to surface with fluoropolymer tubing and the borehole around the tubing sealed with bentonite. iii. Samples will be collected after a minimum of 24 hours following installation ii. 3 Soil Gas-Sub Slab samples from the interior of the former grocery store i. Samples will be collected via drilling 1.5 inch diameter hole partially through the building slab, with an inner 5/8 inch hole drilled completely through the slab and Vapor Pin installed ii. (1) of the Soil-Gas Sub Slab samples shall be taken from the footprint of the