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Attachment A SCOPE OF SERVICES CITY OF SAN MARCOS PROPOSED SESSOM CREEK WASTEWATER CAPACITY IMPROVEMENTS PRELIMINARY DESIGN, DESIGN, BID, AND CONSTRUCTION PHASE wide right -of -way where ground surface visibility is below 30 percent and where soils appear undisturbed. Given the presence of deep alluvial terrace deposits in the project area and the project's proximity to known NRHP /SAL - eligible historic and prehistoric sites, it is assumed that mechanical trenching will be required. In addition, this investigation will evaluate archaeological resources for their potential eligibility for inclusion in the NRHP per Section 106 (36 CFR 800) of the NHPA, as amended, or designation as a SAL under the provisions of the Texas Antiquities Code (13 TAC 26.12). Reporting of results, including preliminary NRHP /SAL evaluations of any identified archaeological resources, will comply with THC and CTA guidelines and will be coordinated with the THC and the City per the terms of the approved archaeological permit. e. Tree Survey. CoxJMcLain will identify tree species based on tree surveying performed by the surveyor (provide mapped locations and tree tags/ numbering). CoxJMcLain will identify any mitigation required based on impacts to those numbered trees. 6. Surveying and Easement Descriptions — Inland Geodetics will provide surveying support for the project including: a. Perform a design survey consisting of trees 8- inches and larger, surface features, property lines and 1 -foot topographic lines. Horizontal control will be on the Texas State Plane Coordinate System Central Zone and vertical control shall be USGS NAVD88 datum. b. Prepare field notes and descriptions for easement documents in accordance with City standards. For estimating purposes temporary and permanent easements on four (4) parcels have been assumed. 7. Geotechnical Investigation — Raba - Kistner will perform geotechnical borings of varying depths along the project route; conduct appropriate laboratory testing; and summarize the field investigation results and recommendations in a geotechnical report as appropriate. 8. Utility Research, Location & Coordination — The City of San Marcos will separately contract for subsurface utility engineering (SUE). KFA will provide assistance through review of the SUE work and providing input on utility test holes required. 9. Plan Preparation — KFA shall prepare construction plans suitable for public bidding to include notes, plan and profile sheets, details, environmental protection, traffic control, and work and storage locations for the University /C.M. Allen Wastewater Line. Plan and profile sheets shall be at 1"=40' horizontal and V=4' vertical scale. Two separate sets of construction plans have been assumed. The N. LBJ Drive wastewater line plans shall be K'I'FRIESE Page 6 of 10 & ASSC ?C AiES I