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If questionable or objectionable on-site odors are detected by site personnel, <br />operations personnel will implement the following protocol: <br />1. Investigate and determine the likely source of the odor. <br />2. Determine if on-site management practices could remedy the problem and <br />immediately take steps to remedy the situation. Possible on-site odor sources <br />and likely management actions are shown in Table 1. <br />3. Determine whether or not the odor is traveling beyond the site by patrolling the <br />site perimeter and noting existing wind patterns. <br />4. If it is determined possible odor impacts occurred, contact is made with the <br />appropriate Local Enforcement Agency (LEA) and/or neighbors. <br />5. Log the odor source and corrective actions taken in the Site Operations Log <br />and Special Occurrences Log. <br />1.2 CLIMATIC CONDITIONS <br />1.2.1 General Conditions <br />Climatic conditions are not expected to adversely affect site operations. The climate <br />of the region is typical of the California Central Valley. Winters are cold and wet with <br />fog, while summers are hot and dry. Temperatures range from a minimum average <br />value of 37 0 F in December to a maximum average value of 94 0 F in July, with an <br />annual mean temperature of 62.4 0 F (www.weather.com). <br />Rainfall is seasonal in the Central Valley region, with approximately 90 percent of the <br />rainfall occurring between November and April. Figure 3 illustrates the isohyetal <br />preCipitation map for San Joaquin County. The isohyetal precipitation map divides <br />San Joaquin County into three rainfall intensity zones. The RRF/landfill is located in <br />Zone 2 and receives approximately 17.87 inches annually. The Forward site is not <br />located within the 100-year flood plain. According to the Federal Emergency <br />Management Agency (FEMA) Federal Insurance Rate Map (FIRM), (see Figure 4), the <br />majority of the landfill is located within "Zone X", which are areas determined to be <br />outside the 0.2 percent annual chance of being in a floodplain. <br />1.2.2 Wind Velocity and Direction <br />During summer periods, winds usually originate from the north end of the San <br />Joaquin Valley and flow in a south-southeasterly direction through the valley and <br />Tehachapi pass, and then into the neighboring Southeastern Desert Air Basin. <br />During winter months, winds occaSionally originate from the south end of the valley <br />and flow in a north-northwesterly direction. During winter months, the valley <br />experiences light, variable winds, less than 10 miles per hour (mph). Low wind <br />speeds, combined with low inversion layers in the winter, create a climate conducive <br />to high concentrations of certain air pollutants. <br />The California Air Resources Board (1984) analyzed wind data for the Stockton <br />Airport weather station for the period from 1964 to 1980. The prevailing wind for the <br />Stockton station blows from west-northwest (45.3 percent of the time) and north <br />(15.9 percent of the time). Calm winds occur 6.9 percent of the time. A wind rose <br />(Figure 5) developed from the Stockton Airport station data provides wind direction <br />Forward Compost Facility -OIMP 3 SWT Engineering <br />z:\projects\aliied waste\forward\resource recovery facility\5 yr permit rvw 2013-14\rcsi 2014\appendices\app e-oimp\oimp <br />text. doc; 7/18/2014