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ARROYO LAGO RESIDENTIAL PROJECT ADDENDUM 116 FCS Https://adecinnovations.sharepoint.com/sites/PublicationsSite/Shared Documents/Publications/Client (PN-JN)/2148/21480036/Addendum/21480036 Arroyo Lago Residential Project Addendum.docx Paleontological monitoring shall be conducted by a qualified Paleontological Monitor meeting SVP standards and best practices, under the supervision of the qualified Paleontologist. Monitoring would be required for excavations at the project site that exceed 6 feet below the existing grade east of El Charro Road, in previously undisturbed deposits. Full-time monitoring shall be required for all excavation into previously undisturbed Pleistocene-age deposits. If earth-disturbing construction- related activities uncover any paleontological resources (i.e., bones or teeth), those activities shall be diverted at least 15 feet away from the discovery until a qualified Paleontologist is brought on-site to assess the find for possible salvage, consistent with the standards and best practices set by the SVP. Construction workers shall not attempt to remove such finds. Depending on the conditions encountered, full-time monitoring can be reduced to part-time inspections or ceased entirely if determined adequate by the qualified Paleontologist. In the event that paleontological resources are encountered while monitoring is not occurring (i.e., during excavations within the first 6 feet below the existing grade), excavations within 50 feet of the find shall be temporarily halted or diverted until the qualified Paleontologist can assess the find and determine its significance. Depending on the conditions encountered, monitoring activities may be increased at the discretion of the qualified Paleontologist if he or she deems it appropriate. The qualified Paleontologist may spot check the excavation on an intermittent basis and recommend whether the depth of required monitoring should be revised based on his/her observations. The qualified Paleontologist shall document the discovery as needed and assess the significance of the find under the criteria set forth in CEQA Guidelines Section 15064.5. Salvaged fossils should be deposited in an appropriate repository (i.e., University of California Museum of Paleontology [UCMP]), where they will be properly curated and made available for future research. The qualified Paleontologist shall notify the appropriate agencies to determine procedures that would be followed before construction activities are allowed to resume at the location of the discovery. If the applicant determines that avoidance is not feasible, the qualified Paleontologist shall prepare an excavation plan for mitigating the effect of construction activities on the discovery. The plan shall be submitted to the appropriate repository and to the County for review and approval prior to implementation. The applicant shall adhere to the recommendations in the approved plan. Implementing Measure for MM GEO-6 Upon annexation of the proposed project into the City of Pleasanton (City), the applicant shall submit all documents, plans, and materials required under MM GEO-6 to the City for review and approval, in lieu of the County.