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Docusign Envelope ID:21C696F2-FD37-4E21-94A2-C2BE6A22794A <br /> ii. Convey the 100-year storm flows within the defined street rights of way and <br /> easements. <br /> iii. Follow the criteria and methods outlined in the City's Stormwater Technical <br /> Manual. <br /> b. Model will be updated with design data at 60%and 90%design. Final changes made for <br /> 100%design are anticipated to be minimal,therefore modeling during 100%design will <br /> not be performed. <br /> c. Atlas 14 will not be evaluated. <br /> d. Assumptions for downstream boundary conditions (i.e., HGL)will be derived from the <br /> TxDOT proposed drainage improvements along the 1-35 frontage road or the top of soffit <br /> elevation if TxDOT boundary conditions are not available. <br /> 4. Phase 2 Design (Task Orders 4, 5, and 6): <br /> a. Initial design deliverable for detention pond shall be considered 60%design, with <br /> additional design deliverables to be created for 90%, 99%, and 100%design. <br /> b. Detention pond redesign shall not begin until the City has provided a finalized site plan <br /> upon which to base pond design. <br /> c. The entirety of Phase 2 construction shall be on SMCISD property, meaning that <br /> easement acquisition and traffic control plan shall not be necessary. <br /> d. Design shall be based upon SMCISD site development utilized by Plummer during the <br /> Feasibility Study referenced above. Should further revisions (affecting pond location or <br /> capacity) be made to SMCISD site development plans after the feasibility study has been <br /> started on site plans mentioned earlier in this paragraph, subsequent additional <br /> feasibility study shall be considered an additional service. <br /> e. Revised pond design will allow for removal of School District improvements that were <br /> included in previous detention pond designs, including sports fields, walking paths, and <br /> pedestrian bridge. <br /> f. Relocation of wastewater line servicing 800 Leah Ave (Sage Spring Senior Living) shall not <br /> be necessary. Relocation of wastewater line shall be considered an additional service. <br /> 5. Phase 3 Environmental Support Services (Task Order 13): <br /> a. Tree Permitting: It is assumed that the City of San Marcos doesn't require tree <br /> permitting for utility projects. If it is determined that tree permitting is needed,this will <br /> be an Additional Service. <br /> b. Meetings are assumed to be performed remotely via Microsoft Teams. <br /> c. Development of additional permits for the project including but not limited to tree <br /> permits, endangered species survey permitting,floodplain development permits,Texas <br /> Antiquities Permit and Section 404 permits for impacts to Waters of the U.S. are not <br /> included in this scope. If required,these would be an Additional Service. <br /> d. Development of a mitigation plan for unavoidable impacts is not included in this task. If <br /> required by City or regulatory agency, these would be an Additional Service. <br /> 6. Phase 3 Design (Task Orders 14, 15, and 16): <br /> a. No driveways will be within TxDOT roadways, and thus TxDOT permit will not be <br /> required. <br /> b. Sheets shall have the same stationing and (when possible)viewports as roadway grading <br /> sheets. <br /> Page 5 of 22 <br /> Documentl <br />