Amendment No 2 to PSA - WWTP Hydraulic & Clarifier Proj No. 119-069

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STANDARD AGREEMENT FOR PROFESSIONAL SERVICES Page 3 of 7 Between City of South Bend and ARCADIS U.S., Inc. Project Number: 30029091 AMENDMENT No. 2 119-069 WWTP Secondary and Disinfection Improvements Amendment No. 2 less dewatering during construction and an open channel for visual inspection. The pipe and channel alternatives for this segment will be evaluated at a high-level. Miscellaneous Demolition Near Hydraulic Improvements. An abandoned concrete pad east of the primary clarifiers and north of the Primary Scum Building will be demolished. The existing Parshall flumes will be evaluated during preliminary design if modification of the flumes is cost effective when the primary effluent hydraulic improvements are constructed. Arcadis will prepare design drawings and specifications as a supplement to the Final Clarifier Nos. 1-3 Improvements project, which is being delivered through a Guaranteed Savings Contract between the City and Bowen Engineering. The City will coordinate with Bowen Engineering to provide associated construction cost estimates for this project. Arcadis will also perform construction administration services. The City will perform construction inspection. A SharePoint site will be established for use during design. The scope of engineering services shall include the following: 1. Project Management. Provide project management including scope, budget and schedule control; project coordination; maintenance of records; project setup, invoicing, and close-out. 2. Kick-off and Design Review Meetings. Meet with the City to kick-off the project including a site visit to perform initial above-ground field investigations. Meet in-person with the City monthly to share progress, resolve outstanding items, perform additional field needs, and review deliverables and design progress for 60% and final designs. In addition to these in-person meetings, up to four conference calls are included. 3. Survey. A survey may be required during design for key spot elevations. Any survey will be provided via subcontract services. A $5,000 allowance, currently not included in the fee pricing, shall be added if survey is needed. 4. Basis of Design. Conduct a preliminary design including the following tasks. a. During the kick-off meeting, inspect the abandoned primary effluent channel from the surface to determine structural rehabilitation needs of the channel for future use. b. Confirm hydraulics to determine extent of hydraulic improvements. c. Confirm structural needs including rehabilitation for all areas. d. Obtain manufacturers’ cut sheets including materials of construction, cost quotes, delivery schedules, and dimensions from vendors for piping and equipment. e. Develop preliminary requirements for construction phasing and for coordination with Owner’s operations including allowable pipe/tank shutdowns and scheduling. f. Perform a constructability review of the design at this time. g. Develop preliminary engineer’s opinion of probable construction costs. h. Prepare preliminary drawings and major equipment specifications. i. Summarize the above tasks in a Basis of Design Meeting. 5. Construction Drawings. Prepare detailed drawings to supplement the Final Clarifier Nos. 1-3 Improvements drawings to show the general scope, extent and character of the work to be furnished and performed by Contractor. The plans will show civil piping configuration and layout, structural components and detail. Record drawings will be recreated in AutoCAD for use as the base sheets. 6. Specifications. Prepare specifications to supplement the Final Clarifier Nos. 1-3 Improvements project manual. The technical specifications will be prepared in conformance with the fifty-division format of the Construction Specifications Institute. 7. Industrial Treatment Evaluation. Arcadis evaluated digestion alternatives for providing treatment to a potential industrial user’s discharge that was proposing to discharge high loads of BOD to the South Bend WWTP. Alternative evaluations included: (1) evaluating the treatment capacity of the existing processes at the South Bend WWTP to treat higher BOD loads and (2) sizing and providing a high-level construction cost estimates of a remote digester facility to treat proposed BOD loads from a new industrial discharger. 8. Construction Schedule. Prepare construction schedule establishing advertisement dates, bid opening, notice-to-proceed, and critical milestone dates for each design deliverable. 9. Guaranteed Maximum Price Assistance. Assist the City in reviewing the guaranteed maximum price. Upon successful completion of the design phase, the following construction services apply.