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SAN JOAQUIN COUNTY <br /> AIR POLLUTION CONTROL DISTRICT <br /> Suggested Mitigation Measuxes <br /> A_ Emissions generated during tho construction process are of <br /> concern to the District. The following dust control <br /> practices should be implemented: <br /> 1) All material excavated or graded should be sufficiently <br /> watered to prevent excessive amount of dust. Waterinc <br /> should occur at least twice a day with complete <br /> coverage', preferably in the late morning and after work <br /> is done for the day. <br /> 2) All clearing, grading earth moving or excavation <br /> activities shall cease during periods of high winds <br /> greater than 20 mph average over one hour. <br /> ] ) All material transported off-site shall be either <br /> sufficiently watered or securely covered to prevent <br /> excessive amount of dust. <br /> 4) The area disturbed by clearing, earth moving or <br /> excavation activities should be minimized at all times. <br /> 5) The developer should mow instead of disking for weed <br /> control, thereby leaving the ground undisturbed and with <br /> a mulch covering. <br /> B. Ater clearing, grading, earth moving, or excavation <br /> cveration, fugitive dust emissions during construction phase <br /> should be controlled by the following methods : <br /> 1) all inactive portions of the construction site should be <br /> seeded and Watered until grass growth is evident. <br /> 2) All activa ,pgrticas of .tae .sltG- =hall be sufficiently <br /> watered to prevent excessive amount of dust. <br /> C. At all times , fugitive dust emissions should be controlled <br /> using the following procedures : <br /> 1) On-sita vehicle speed shall be limited to 15 mph. <br /> 2) All area with vehicle traffic should ba watared <br /> cericdically for stabilization of dust emissions. <br />