ARCHIVED REPORTS_[REV] MAY & JULY 2014 RCSI

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2-3 The Forward Landfill and RRF/Compost Facility are owned and operated by Forward, Inc., which is wholly-owned by Republic Services, Inc. There are no leased parcels at the site. Figure 3 shows the parcels owned by Forward and land uses within one mile of the site boundary. 2.1.2 Design Details A design detail drawing for the windrow composting using a windrow turner is attached as Figure 4. Calculations supporting this design method are included in Appendix B. A number of composting processes may be utilized at the Forward Compost Facility. The composting process to be used will depend on the specific feedstocks to be processed and the experience gained in developing compost mixtures. The intent is to use the least complex and most cost efficient process that is found suitable for the types of feedstocks to be composted. The decision to construct/develop the necessary infrastructure will be specific to the process and based on economics. Design Parameters. The composting processes described later in this section will be developed assuming that composting mixtures are developed for optimal composting and minimal odor generation. The parameters to be used are as follows: • Moisture content -approximately 50 to 60 percent • C:N ratio -greater than approximately 25:1 • Density -less than approximately 1,000 pounds per cubic yard • Porosity structure -as necessary to maintain aerobic conditions The specific mixtures of feedstocks to achieve these parameters are impossible to calculate given the large number of potential feedstocks described in this document as allowed in the SWFP and WDRs. The actual feedstocks available and the relative proportions will dictate the development of suitable mixtures. Temperature of the active compost is monitored at multiple points to comply with the State and Federal requirements to meet pathogen reduction criteria and also as required for sufficient process control. Temperature/turning records also indicate when pathogen reduction has been met as well as when the windrow has been moved to be screened. Moisture content of the active compost is monitored, as necessary, to provide for proper process control as well as nuisance control (e.g., odors). Monitoring results are documented and records a re ma i ntained at the facility. Water Supply. As previously discussed in Section 1.2.1, there are three agrieulturefour production water wells at the site. One well, located near the main entrance facility was drilled to a depth of approximately 135 feet and groundwater occurs at a depth of approximate ly 70 feet. This well was likely installed before the opening of the landfill, having been previously used for agricultural purposes. It is pumped at a rate of approximately 1500 gallons per minute (gpm) at a maximum frequency of approximately 27 times during a typical work day. Another well is located south of the South Fork of South Littlejohn's Creek, in the southeast corner of the Compost Facility/RRF area, and has a capacity of 500 gpm. The third well is located a long the northern boundary of the landfill. This well was installed in 1972 and has a production of approximately 60 gpm. The fact that groundwater flow near the Forward Landfill is not modified by pumping from this well suggests that it is screened in a confined unit below the uppermost groundwater units that are monitored at Forward Composting Facility SWT Engineering Report of Composting Site Information -May.!.uJy 2014 z:\projects \allied waste \forwardVesource recovery facility \5 yr permit rvw 2013-14Vcsi 2014\text \se c 2.d oc