Item 16 - On-Call Professional Land Surveying Services Agreements

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l�J City of Irvine: Alton Parkway Pavement Rehabilitation Project Towill performed horizontal and vertical control sur- veys, topographic surveys and centerline surveys for a 3,000-foot portion of Alton Parkway near the Irvine Spectrum. Utilizing a combination of conventional survey methods and 3D laser scanners, Towill collect- ed full street topographic data without impeding traffic or closing a lane. The final data was mapped, a digital terrain model created, and all delivered to the design team in MicroStation and InRoads format. Year Completed: 2017. Client: City of Irvine Contact: Uyenly Bui Phone: 949.724.7559 City of Fullerton: Raymond Avenue Grade Separation Project Towill provided quality assurance construction survey- ing services, including verifying the primary and proj- ect control, reviewing the horizontal design alignments and vertical profiles, and responding to construction survey requests, to support this grade separation project. We monitored the contractor's surveyor for compliance with the project surveying requirements, verified their layout and controls, spot checked ref- erence points and finished work, and monitored for settlement or movement of existing facilities. Con- struction surveys were performed in accordance with the Caltrans Survey Manual and its revisions. Year Completed: Ongoing. Owner: City of Fullerton Client: Berg & Associates, Inc. Contact: Carlos J. Quiroz, QSP Phone: 310.548.9292 Los Angeles County Department of Public Works: As -Needed Surveying and Mapping Services Contract Towill has been providing land surveying and mapping services for the Los Angeles County Department of Submitted October 24, 2019 City of Santa Ana RFP No. 19-090 Professional Land Surveying Services Public Works since 2013. Our two most recent task orders are described below. LACDPW Headquarters Building ALTA/NSPS Land Title Survey: Towill completed an ALTA/ NSPS Land Title Survey for the Department of Public Works Headquarters building. Services included establishing ground control, color aerial photography, planimetric feature collection at 1" = 20', and development of Digital Terrain Model (DTM) sufficient in detail for generating 1.0' design contours. Our subconsultant, AirX, used Ground Penetrating Radar (GPR) to locate the underground utilities. Year Completed: 2019. Roosevelt Park Construction Staking: Towill is currently supporting the County's contractor with construction staking services for the subject project. To date, there have been a total of 32 staking requests issued, all of which have been completed within forty-eight hours after receipt. Year Completed: Ongoing. Client: LACDPW Contact: Mark Wittig, PLS Phone: 626.458.5144 Orange County Public Works: On -call Surveying Services Contract Towill has been providing on -call surveying services to the Surveyor's Office of the Orange County Pub- lic Works Department since 2010. Services that can be requested under this contract include boundary surveys, monumentation, monument preservation, topographic surveys, construction surveys, and other land surveying tasks. Our current contract extends from 2018 through 2021. Under our previous contract, Towill completed 11 surveying task orders, including several that involved deformation monitoring and monument preservation and perpetuation. Deformation monitoring was pro- vided for the Peters Canyon, Villa Park, and Sulphur Creek Dams. The monitoring surveys included hor- izontal and vertical control, horizontal monitoring of specific points along the dams utilizing GPS static survey procedures, and vertical monitoring of specific TOWINLGIS L is