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Notification #1600 - 2013 - 0356 -R3 Streambed Alteration Agreement Exhibit A -1 Page 5 of 23 2. Avoidance and Minimization Measures To avoid or minimize adverse impacts to fish and wildlife resources identified above, Permittee shall implement each measure listed below. 2.1 Work Location Restriction. At Site 1, to protect saltmarsh harvest mouse and other saltmarsh species, routine maintenance activities shall be limited to Atherton Creek upstream of the bridge at the intersection of 3723 South Haven and Bayfront Expressway. 2.2 Seasonal Work Period. To protect fish and wildlife and their habitats, work within the stream and riparian zone shall be limited to April 15 to October 31. 2.2.1 Work Period Modification. If Permittee needs more time to complete project activities, work may be authorized outside of the work period and extended on a day -to -day basis by CDFW representative, Suzanne Deleon, at suzanne.deleon .wildlife.ca.gov, or if unavailable, through contact with the CDFW Bay Delta Regional Office by mail, phone (707 - 944 -5500) or fax (707 - 944 - 5553). Permittee shall submit a written request for a work period variance to CDFW for approval at least five (5) calendar days prior to November 1. The work period variance request shall: 1) describe the extent of work already completed; 2) detail the activities that remain to be completed; 3) detail the time required to complete each of the remaining activities; and 4) provide photographs of both the current work completed and the proposed site for continued work. Work period variances are issued at the discretion of CDFW. CDFW will review the written request to work outside of the established work period and may require additional measures to protect fish and wildlife resources as a condition for granting the variance. Any additional measures shall be made part of this Agreement. 2.3 Work Period in Dry Weather Only. Work within the stream and riparian zone shall be restricted to periods of no or low stream flow, low rainfall (less than Y4" per 24 hour period) and dry weather as allowed during the work period specified in Measure 2.1. 2.4 Weather Forecasts. Precipitation forecasts and potential increases in stream flow shall be considered when planning construction activities. Permittee shall monitor the 72 -hour forecast from the National Weather Service (NWS; hifp: / /www.nws.noaa.goy), When there is a forecast of more than 40% chance of rain, or at the onset Page 14 of 34 ATTY /AGR /2018.243/CITY OF MENLO PARK_ATHERTON CHANNEL GSA