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3-12 <br />e. Chemical or Bulking Agents <br />List an}' ehemieai additives er bl:Jildlng ageRts aRd the estimated ame{;}f1t to be l:Jsed for <br />fiRishing the eempostingpro60S5. Doseribe the applieatieR methed. <br />As previously mentioned . amendments and/or additives are not currently utilized at the <br />RRF/Composting facility. In addition. any oversized screened materials are <br />landfilled.Chipped green waste or screened oversize materials will beare used as bu ll ~ing <br />agents, as necessary. <br />3.5.3 Climatic Conditions <br />if elimatic eooditioos such as fFost, $Rew er wet weather are likely to adveFseljl affeet site <br />aeeess or the eperatioo el aemting Windro ws er staUe {Jiles, el:Jt/ine measlJFOS to e veroeme <br />these effeets. <br />Climatic conditions are not expected to adversely affect site operations. It does not snow <br />but can occasionallYef freeze at the site. Forward implements a winterization program each <br />year to prepare the internal roads forffistalf all weather roads for access during the rainy <br />season (October through Aprill . <br />The climate of the region is typical of the California Central Valley. Winters are generally cold <br />and wet with fog, while summers are hot and dry. <br />Climatological data used in the site design was gathered from representative weather <br />stations near the site. Representative climatologic stations were selected based on their <br />proximity to the site and 2-.reliable period of records for the station (30 years or more). <br />Temperature. Normal monthly temperatures were salcu lated from the 8tool<ton Weather <br />8tation office (\/'j80) (No. 8658, latitude 37 064', long itude 121015', Elevat ion 22 msl), <br />located approximately 3 miles west of the s ite, f rom data collected from 1948 through <br />1990. These tempera t ures ranged from a minimum average yalue of 42 .5 0 F in January to a <br />maximum a'/erage va lue of 78.0 0 F i n August, 'A'ith an annua l mean temperature of 61.6 0 F <br />(Nat iona l Climatic Data Center, 1990). Summer high temperatures often exceed 100 <br />degrees Fahrenheit (0 F). averaging from the low 90's in the northern part of the valley to the <br />high 90's in the south. The daily summer temperature variation can be as high as 30 0 F. <br />Winters for the most part and mild and humid. Average high temperatures during the winter <br />are in the 50's. while the average daily low temperature is approximately 45 0 F. <br />Precipitation. Precipitation at the project site is typical of the Central Valley region. Rainfall <br />is seasonal, with approximately 90 percent of the rainfall occurring between November and <br />April. Snowfall is unusual at the site. <br />Figure 81 presents an illustrates the isohyetal precipitation map for San Joaquin County <br />showing lines of equal precipitation on a countywide basis (San Joaquin County Department <br />of Public Works, 1991). The isohyetal preCipitation map divides the whole of San Joaquin <br />County into three rainfall intensity zones. The project site is located in Zone 2 of the three <br />rainfall zones, as illustrated in Figure 18. Mean annual precipitation for Zone 2 on the San <br />Joaquin County isohyetal precipitation map is approximate ly 13.5 i nches. <br />Specific precipitation intensities used for project site deve lopment and designs · .... ere are <br />based on precipitation data from the Stockton weather WBAP 8station number BOO-8560 <br />located approximately 8 miles northwest of the site at latitude 38 000', longitude 121 0316', <br />and an elevation of 12 feet National Geodetic Vertical Datum {NGVD l (California Department <br />Forward Composting Facility SWT Engineering <br />Report of Composting Site Information -May 2014 <br />z:\!lrojects \allied waste \forward\resource recovery facility \5 yr perm it rvw 2013-14\rcsi 2014\text\sec 3 -revtr.doc