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EXHIBIT 1 <br />CITY OF SAN MARCOS <br />BLANCO GARDENS CDBG-DR DRAINAGE IMPROVEMENT PROJECT <br />PRELIMINARY ENGINEERING - SCOPE OF SERVICES <br />b. Project Meetings: One (1) project meeting has been budgeted for the Preliminary <br />Engineering Phase, prior to milestone submittal (30% Design). <br />c. Public Meetings: Two (2) public meeting have been budgeted which consists of preparing <br />exhibits and attending the meetings. Scheibe will retain a public relations subconsultant to <br />coordinate the meetings. The first meeting will be conducted following project kick-off, and <br />the second will be conducted upon development of 30% design deliverables or at <br />completion of final design (as directed by the City). <br />3. Tasks <br />a. Topographic and Tree Survey: Scheibe will prepare topographic and tree survey for the <br />magenta -shaded area shown in the attached exhibit (Exhibit 1A), for the purpose of <br />preparing Design Documents. Scheibe will prepare an electronic map showing the <br />following: <br />i. Existing trees, size and type — 8" and above caliper for Native Oaks, Elms, <br />Madrone, and Pecan, Celtis Occidentalis (Hackberry), Juniperus Virginiana, <br />Juniperus Ashei (Common Cedar), Chinaberry, mesquite and Ligustrum trees per <br />San Marcos City Ordinances, Section 5.5.2.2-(g)(2). <br />ii. Shot at top of nut of water and gas valves. Water, Sewer, and Drainage maps will <br />be required to be provided by City prior to survey. <br />iii. Identify all visible and above grade utilities, and manholes with invert elevations <br />and tied to existing control points/ City bench marks (if any). Subsurface Utility <br />Engineering Quality Levels B, C, D may also be performed as needed. <br />iv. Full topography (1 -ft contours) within the right-of-way and existing drainage <br />easements throughout the project area (see Exhibit 1 A); <br />b. Permitting — Scheibe will identify all permitting requirements and associated review - <br />approval timeframes for the proposed project (e.g., TCEQ, USACE, tree mitigation, <br />floodplain, street cut, NEPA) and evaluate schedule impacts associated with outfall <br />alignment alternatives as shown in Exhibit 1 A. <br />c. Environmental — Scheibe will perform a records search for critical environmental features <br />within the project area with a focus on the potential outfall alignments shown in Exhibit 1 A. <br />Detailed field surveys will be performed in subsequent phases. <br />d. Modeling — Scheibe will use new topographic survey data to refine the existing hydrologic <br />and hydraulic analysis. The PCSWMM model developed as part of the CDBG-DR <br />Infrastructure Feasibility Study and the InfoWorks ICM Blanco Overflow model will be used <br />as design tools to optimize the proposed drainage improvement alternatives recommended <br />in the CDBG-DR Infrastructure Feasibility Study for 30% Design development. Proposed <br />alignments and vertical profiles will be refined based on known utility conflicts. The regional <br />Blanco Overflow Innovyze InfoWorks ICM model (assumed to include other proposed <br />CDBG-DR improvement projects) will also be used to evaluate flood reduction and <br />potential adverse impacts due to the proposed River Road Reconstruction & Storm Drain <br />improvements. The City will provide or confirm design overflow rates into the project area. <br />2 <br />