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AUGUSTIN BERNAL MOUNTAIN BIKE TRAIL PROJECT DRAFT INITIAL STUDY • A spill kit shall be maintained on site throughout all construction activities and shall contain appropriate items to absorb,contain, neutralize, or remove hazardous materials stored or used in large quantities during construction. • Project plans and specifications shall identify construction staging areas and designated areas where equipment refueling, lubrication,and maintenance may occur.Areas designated for refueling, lubrication,and maintenance of equipment shall be approved by the City. • In the event of any spill or release of any chemical or wastewater during construction, the contractor shall immediately notify the City of Pleasanton. • Hazardous substances shall be handled in accordance with Title 22 of the California Code of Regulations,which prescribes measures to appropriately manage hazardous substances, including requirements for storage,spill prevention and response and reporting procedures. 3.10 Hydrology and Water Quality Less Than Significant Potentially Impact With Less Than Significant Mitigation Significant Impact Incorporated impact No Impact X. HYDROLOGY AND WATER QUALITY-Would the project: a) Violate any water quality standards or waste discharge requirements or ❑ ❑ ❑ ❑ otherwise substantially degrade surface or ground water quality? b) Substantially decrease groundwater supplies or interfere substantially with groundwater recharge such that the ❑ ❑ ❑ project may impede sustainable groundwater management of the basin? c) Substantially alter the existing drainage pattern of the site or area, including through the alteration of the course of a stream or river or through the addition of impervious surfaces, in a manner which would: i) result in substantial erosion or ❑ ® ❑ ❑ siltation on or off site; ii) substantially increase the rate or amount of surface runoff in a ❑ ❑ manner which would result in flooding on or off site; 12956 DUDEK 64 April 2022