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Mr. Lorenzo Wingate City of La Porte August 31, 2021 Page 9 borings, conversion of the soil borings into temporary groundwater screening points, and the collection and laboratory analysis of soil and groundwater samples. Task 10: Subsurface Utility Engineering Depending on the final location of the detention pond, the pond outfall may cross above or below the existing 30Ñ Spectra natural gas pipeline. In order to avoid a utility conflict, one (1) quality-level A pothole is scoped to identify the depth of the pipeline. Task 11: Construction Staking Construction staking services will be performed by Amani Engineering. Amani will recover and reset survey controls delineated in the design phase. This effort does not include staking out the pond boundary. Halff will provide design CADD files to the contractor for reference. Services Not Included: Tier II Water Quality Certification NEPA Documentation Construction staking of pond limits including top of bank and toe List of Assumptions: 1. All consultant fees shown on are considered to be time and materials, unless otherwise noted. 2. The City of La Porte will provide any procedures, policies, data collection systems, engineering guidelines, standards, and design criteria that will be required for this project. 3. The City of La Porte will retain ownership of any deliverables and electronic files created for this project but will not be supplied with software applications or licenses as part of this project. 4. The scope of services does not include any preparation or attendance at any public meetings pertaining to the project design or construction. 5. The City of La Porte will prepare the project manual and front end documents for this project. Halff will prepare the bid form, specifications, general provisions, and special specifications.