SFPUC 2001 Alameda Watershed Management Plan

IV. MITIGATION MEASURES••Table III.D-7, ensure all applicable Management Plan management actions areimplemented that are necessary to reduce the impact to a less than significant level (seeTable III.D-7).7. In implementing any Management Plan management action that could result in significantphysical effects on hydrology from build up of sediments, as shown in Table III.D-8,ensure all applicable Management Plan management actions are implemented that arenecessary to reduce the impact to a less than significant level (see Table III.D-8).2.0 MITIGATION MEASURES IDENTIFIED IN THIS REPORTThe following mitigation measure addresses potential hydrologic impacts from proposed miningoperations.•1. Prior to approval of new or amended Surface Mining Permits or mining leases forexpansion of mining south of I-680, an independent study of Alameda Creek resourcesshall be completed by a qualified expert and approved by the Alameda County PlanningDirector and the SFPUC Watershed Manager. The study shall focus on potential impacts togroundwater and surface water hydrology and fish and wildlife species of special statusconcern from such future mining and shall propose mitigation measures applicable tomining, if warranted, to avoid significant impacts. If warranted, such measures mayinclude establishment of barriers to prevent adverse changes to groundwater or surfacewater hydrology and the resources supported by groundwater and surface water; specialmeasures to avoid impact to steelhead trout (if established in Alameda Creek) or otherfisheries resources; and special measures to avoid impacts to listed species dependent onAlameda Creek for its riparian habitat or use as a migration corridor. All feasiblemitigation measures shall be incorporated into future Surface Mining Permit conditions ofapproval and mining leases.•Implementation of this mitigation measure would reduce the potentially significant hydrologicimpact from proposed mining operations to a less than significant level.E. NATURAL RESOURCES1.0 MITIGATION MEASURES PROPOSED AS PART OF THE PROJECT1. In implementing any Management Plan management action that could result in significantphysical effects on natural resources from Watershed operations, maintenance, andconstruction activities, as shown in Table III.E-4, ensure all applicable Management Planmanagement actions are implemented that are necessary to reduce the impact to a less thansignificant level (see Table III.E-4).2. In implementing any Management Plan management action that could result in significantphysical effects on natural resources from an increase in public access and use, as shown inTable III.E-5, ensure all applicable Management Plan management actions areimplemented that are necessary to reduce the impact to a less than significant level (seeTable III.E-5).NOP 96.223E: Alameda Watershed Management Plan IV-3 ESA / 930385January 2001