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CITY OF SANTA ANA EXHI BIT A RFP NO.; 16 -114 SUBFURFACE UTILITY ENGINEERING SERVICES SCOPE OF WORT{ Introduction and BacicQrouud: The City of Santa Ana is located in the County of Orange in Southern California. The City encompasses 27.5 square iniles and a population of over 325,000 people. The City of Santa Ana Public Works Agency (PWA) is soliciting proposals for Subsurface Utility Engineering (SUE) Services. These tasks include Ioeation and identification of underground utilities in the planning, design, pre - constriction, and construction phases. Those services are on -call and on an as- needed basis. This request for proposal (RFP) provides interested clualifed firms with the information enabling them to submit a Service Bid Proposal and to provide the services described herein. Description ofWorl.: On as needed basis, the selected flnr/s shall provide the City with the follow lag services as described herein. Underground Utility Locating: Determine the precise horizontal and vertical position, size, condition, material, utility owner /s name and other characteristics of underground utilities using vacuum excavation a xl or other comparable means, Obtain and review plans provided by the City sbowing areas requiring locating (test boreholcs) sites as identified by the plans. • Excavate using a method to enable vertical and horizontal exploration and locating means. • rv=lsh and install permanent above ground marker and color code for each of the utilities (i.e., PK nail, ,peg, steel pin, or hub) directly above, the centerline of the strrcture and record the elevation of the marker along with all the oharactaristiw of the utility, • All horizontal and vertical data shall meet survey standards in accordance and as detailed by the; Engineer • Provide the following as part of the borehole test infer-mation a. Elevation top and bottom of the utility tied to the datuum and or furnished information by the Engineer, The accuracy of the vertical elevation shall be, within ( +/- l ft). b, Elevation or the existing grade over the utility test borehole and the pavement and backfill material c Horizontal location referenced to the provided dawn and or as requested by the Engineer d. Obtain pipe, duct bEwk, encasement, and multi- conduit confrguratioa width (outside diameter) e. Provide utility structure material composition and condition £ Identify benchmarks uscd to determine elevations and include it as part of the final deliverable report. g. Identify and provide pavement thickness, material and condition and soil type characteristics, 251 -40