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Richard Larrouy June 3, 1994 SU-93-2 Page 2 • District Regulation VIII - Fugitive Dust Rules is a series of rules designed to reduce PM10 emissions generated by human activity, including but not limited to construction, road building, bulk materials storage and landfill operations. The SJVUAPCD suggests that the project applicant take all feasible measures to reduce the amount of dust (fine particulate matter-PM10) and ozone precursors (Reactive Organic Gases (ROG), and Oxides of Nitrogen (NO2, NO„) that will result from construction of this project. Specifically, the District suggests that the following Mitigation Measures be included as part of project approval: • All material excavated, graded or otherwise disturbed should be sufficiently watered to prevent excessive amounts of dust. Watering should occur at least twice daily with complete coverage, preferably in the late morning and after work is done for the day. • All clearing, grading, earth moving, or excavation activities should cease when wind speeds are equal to or greater than 20 mph. • On-site vehicle speed should be limited to 15 mph. Ozone Precursors-Ozone precursor emissions should be controlled by the following methods: • All internal combustion engine driven equipment should be properly maintained and tuned according to manufacturers specifications. • Idling of all internal combustion equipment shall be limited to ten minutes at any given time. • Use of building materials that do not require the use of paints/solvents. The following items are suggested, but not required by the SJVUAPCD to further reduce emissions that may ultimately result from development enabled by this project application. The applicant should be provided a copy of these measures and encouraged to incorporate those that are feasible into the project design: • Housing units should be oriented to utilize passive solar cooling and heating to the fullest extent possible. • Conventional open-hearth and zero-clearance fireplaces that do not meet EPA Phase II certification should be discouraged. If installed, wood burning appliances should be limited to one per residence. Natural gas fireplaces are a cleaner heating alternative and can be readily substituted for wood burning equivalents.