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d) Construction activities include: the transport of materials to the construction site, on-site land preparation, vertical construction of the buildings, construction employee commute and equipment exhaust emissions. Project related short-term (construction) impacts should be considered significant if, with the implementation of mitigation measures, emissions exceed 10 tons per year of oxides of nitrogen (NOx), 10 tons per year of reactive organic gases (ROG), Or 15 tons per year particulate matter of 10 microns or less in size (PM10). e) The proposed project may be subject to District Rule 2010 (Permits Required) and Rule 2201 (New and Modified Stationary Source Review). To obtain information about District permit requirements and whether an Authority to Construct (ATC) and Permit to operate (PTO) are required, and to identify other District rules or regulations that apply to this project, the applicant is strongly encouraged to contact the District's Small Business Assistance Office at (559) 230-5888. Current District rules can be found on line at: www.valleyair.org/ruies/1 ruleslist htm 8) CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD (Staff Contact: Genevieve Sparks, (916) 464-4745) Construction Storm Water General Permit a) Discharges whose project disturb one or more acres of soil or where projects disturb less than one acre but are part of a larger common plan of development that in total disturbs one or more acres, are required to obtain coverage under the General Permit for Storm Water Discharges Associated with Construction Activities (Construction General Permit), Construction General Permit Order No. 2009-009-DWQ. Construction activity subject to this permit includes clearing, grading, grubbing, disturbances to the ground, such as stockpiling, or excavation, but does not include regular maintenance activities performed to restore the original line, grade, or capacity of the facility. The Construction General Permit requires the development and implementation of a Storm Water Pollution Prevention Plan (SQPPP). For more information on the Contruction General Permit, visit the State Water Resources Control Board website at: http://www.waterboards.ca.gov/water issues/programs/stormwater/constpermits shtml Phase I and 11 Municipal Separate Storm Sewer System (M4) Permits b) The Phase I and II MS4 permits require the Pemittees reduce pollutants and runoff flows from new development and redevelopment using Best Management Practices (BMPs) to the maximum extent practicable (MEP). MS4Permittees have their own development standards, also known as Low Impact Development (LID)/post-construction standards that include a hydromodification component. The MS4 permits also require specific design concepts for LID/post-construction BMSs in the early stages of a project during the entitlement and CEQA process and the development plan review process. For more information on which Phase I MS4 Permit this project applies to, visit the Central Valley Water Board website at: http://www.waterboards.ca.gov/centralvalley/water issues/storm water/municipal permits/ Industrial Storm Water General Permit c) Storm water discharges associated with industrial sites must comply with the regulations contained in the Industrial Storm Water General Permit Order No. 97-03-DWQ. For more information on the Industrial Storm Water General Permit, vast the Central Valley Water Board website at: http://www.waterboards.ca..qov/centralvalley/water issues/storm water/industrial general permits/index shtml 0 Conditions of Approval - g - PA -0800005